Knowledge (XXG)

Truss bridge

Source đź“ť

1422: 792: 2244: 486: 2231:, unlike common pin-jointed trusses, imposes significant bending forces upon its members—but this in turn allows the elimination of many diagonal elements. It is a structure where the members are not triangulated but form rectangular openings, and is a frame with fixed joints that are capable of transferring and resisting bending moments. While rare as a bridge type due to higher costs compared to a triangulated truss, it is commonly employed in modern building construction as it allows the resolution of gross shear forces against the frame elements while retaining rectangular openings between columns. This is advantageous both in allowing flexibility in the use of the building space and freedom in selection of the building's outer 580: 654: 1531: 677: 619: 526: 285:. If the top member is sufficiently stiff then this vertical element may be eliminated. If the lower chord (a horizontal member of a truss) is sufficiently resistant to bending and shear, the outer vertical elements may be eliminated, but with additional strength added to other members in compensation. The ability to distribute the forces in various ways has led to a large variety of truss bridge types. Some types may be more advantageous when the wood is employed for compression elements while other types may be easier to erect in particular site conditions, or when the balance between labor, machinery, and material costs has certain favorable proportions. 560: 1089: 595: 1177: 510: 262:. For purposes of analysis, trusses are assumed to be pin jointed where the straight components meet, meaning that taken alone, every joint on the structure is functionally considered to be a flexible joint as opposed to a rigid joint with the strength to maintain its shape, and the resulting shape and strength of the structure are only maintained by the interlocking of the components. This assumption means that members of the truss (chords, verticals, and diagonals) will act only in tension or compression. A more complex analysis is required where rigid joints impose significant 2381: 1677: 764: 45: 2002: 440: 642: 2347: 464: 2217: 3779: 545: 1368: 1614: 1395: 736: 1733: 865: 1380: 235: 1551: 978:
of the verticals and the lower horizontal tension members are used to anchor the supports for the short-span girders under the tracks (among other things). With the Baltimore truss, there are almost twice as many points for this to happen because the short verticals will also be used to anchor the supports. Thus the short-span girders can be made lighter because their span is shorter. A good example of the Baltimore truss is the
1499: 1994: 3950: 2340: 1228:
to footings. A central gap, if present, can then be filled by lifting a conventional truss into place or by building it in place using a "traveling support". In another method of construction, one outboard half of each balanced truss is built upon temporary falsework. When the outboard halves are completed and anchored the inboard halves may then be constructed and the center section completed as described above.
1851: 2182: 1139: 1209: 1524: 3491:—Virginia Department of Transportation's plan for managing its historic bridges, including metal truss bridges. The update includes sections on study findings such as "General Issues Regarding Metal and Metal Truss Bridges (Including Potential Life Span)," "Coatings Issues for Metal Truss Bridges: Painting, Metallizing, and Galvanizing," and "Truss Bridge Capacity and Overloading Potential." 1081: 967: 1858: 1001: 2333: 2148: 1491: 829: 2289: 1726: 929: 1986: 1954: 2117: 936: 1300: 1243: 1772: 1414: 1796: 594: 2372:, is usually considered a subclass of the Pratt truss because the diagonal members are designed to work in tension. The main characteristic of a Whipple truss is that the tension members are elongated, usually thin, and at a shallow angle, and cross two or more bays (rectangular sections defined by the vertical members). 2435: 559: 1601:
uses a single tubular upper chord. As the horizontal tension and compression forces are balanced these horizontal forces are not transferred to the supporting pylons (as is the case with most arch types). This in turn enables the truss to be fabricated on the ground and then to be raised by jacking
1227:
the situation is reversed, at least over a portion of the span. The typical cantilever truss bridge is a "balanced cantilever", which enables the construction to proceed outward from a central vertical spar in each direction. Usually these are built in pairs until the outer sections may be anchored
977:
is a subclass of the Pratt truss. A Baltimore truss has additional bracing in the lower section of the truss to prevent buckling in the compression members and to control deflection. It is mainly used for rail bridges, showing off a simple and very strong design. In the Pratt truss the intersection
708:
In contrast, a continuous truss functions as a single rigid structure over multiple supports. This means that the live load on one span is partially supported by the other spans, and consequently it is possible to use less material in the truss. Continuous truss bridges were not very common before
288:
The inclusion of the elements shown is largely an engineering decision based upon economics, being a balance between the costs of raw materials, off-site fabrication, component transportation, on-site erection, the availability of machinery, and the cost of labor. In other cases, the appearance of
226:, or sometimes both in response to dynamic loads. There are several types of truss bridges, including some with simple designs that were among the first bridges designed in the 19th and early 20th centuries. A truss bridge is economical to construct primarily because it uses materials efficiently. 2441: 2439: 2436: 2319:
is subject to bending or torsional straining forces, but only to tension or compression. Loads on the diagonals alternate between compression and tension approaching the center, with no vertical elements, while elements near the center must support both tension and compression in response to live
1807:
is a hybrid between the Warren and Parker trusses where the upper chords are all of equal length and the lower chords are longer than the corresponding upper chord. Because of the difference in upper and lower chord length, each panel is not square. The members which would be vertical in a Parker
1565:
bridge includes a lens-shape truss, with trusses between an upper chord functioning as an arch that curves up and then down to end points, and a lower chord (functioning as a suspension cable) that curves down and then up to meet at the same end points. Where the arches extend above and below the
2440: 1819:
The Pegram truss consists of a Parker type design with the vertical posts leaning towards the center at an angle between 60 and 75°. The variable post angle and constant chord length allowed steel in existing bridges to be recycled into a new span using the Pegram truss design. This design also
957:
was designed by the British in 1940–1941 for military uses during World War II. A short selection of prefabricated modular components could be easily and speedily combined on land in various configurations to adapt to the needs at the site and allow rapid deployment of completed trusses. In the
1421: 2320:
loads. This configuration combines strength with economy of materials and can therefore be relatively light. The girders being of equal length, it is ideal for use in prefabricated modular bridges. It is an improvement over the Neville truss which uses a spacing configuration of
2438: 337:
Truss bridges became a common type of bridge built from the 1870s through the 1930s. Examples of these bridges still remain across the US, but their numbers are dropping rapidly as they are demolished and replaced with new structures. As metal slowly started to replace timber,
361:
The bowstring truss design fell out of favor due to a lack of durability, and gave way to the Pratt truss design, which was stronger. Again, the bridge companies marketed their designs, with the Wrought Iron Bridge Company in the lead. As the 1880s and 1890s progressed,
791: 485: 310:. Spaghetti is brittle and although it can carry a modest tension force, it breaks easily if bent. A model spaghetti bridge thus demonstrates the use of a truss structure to produce a usefully strong complete structure from individually weak elements. 3107: 2089: 1471: 724:
spans, which are supported at only one end rather than both ends like other types of trusses. Unlike a continuous truss, a cantilever truss does not need to be connected rigidly, or indeed at all, at the center. Many cantilever bridges, like the
2024:) are used in the diagonals, then crossing elements may be needed near the center to accept concentrated live loads as they traverse the span. It can be subdivided, creating Y- and K-shaped patterns. The Pratt truss was invented in 1844 by 2104:, sometimes called "queen post" or queenspost, is similar to a king post truss in that the outer supports are angled towards the center of the structure. The primary difference is the horizontal extension at the center which relies on 2193:
may contain all horizontal forces within the arch itself, or alternatively may be either a thrust arch consisting of a truss, or of two arcuate sections pinned at the apex. The latter form is common when the bridge is constructed as
1444:
formed in each panel by the vertical member and two oblique members. Examples include the SĂĽdbrĂĽcke rail bridge over the River Rhine, Mainz, Germany, the bridge on I-895 (Baltimore Harbor Tunnel Thruway) in Baltimore, Maryland, the
44: 3252: 700:
or a series of simple trusses. In the simple truss design, each span is supported only at the ends and is fully independent of any adjacent spans. Each span must fully support the weight of any vehicles traveling over it (the
653: 509: 366:
began to replace wrought iron as the preferred material. Other truss designs were used during this time, including the camel-back. By the 1910s, many states developed standard plan truss bridges, including steel Warren
1881:, which pioneered this design. It was once used for hundreds of bridges in the United States, but fell out of favor in the 1930s and very few examples of this design remain. Examples of this truss type include the 439: 579: 305:
A pure truss can be represented as a pin-jointed structure, one where the only forces on the truss members are tension or compression, not bending. This is used in the teaching of statics, by the building of
1877:. The Pratt truss includes braced diagonal members in all panels; the Pennsylvania truss adds to this design half-length struts or ties in the top, bottom, or both parts of the panels. It is named after the 763: 618: 2437: 1747:
bridge is a Pratt truss design with a polygonal upper chord. A "camelback" is a subset of the Parker type, where the upper chord consists of exactly five segments. An example of a Parker truss is the
908:, Australia, the first of the Allan truss bridges with overhead bracing, was originally designed as a steel bridge but was constructed with timber to reduce cost. In his design, Allan used Australian 1707:, which with a span of 210 feet (64 m) and a total length of 232 feet (71 m) long was the second-longest covered bridge in the United States, until its destruction from flooding in 2011. 676: 2913: 281:, and bending, outer diagonal and top members are in compression, while the inner diagonals are in tension. The central vertical member stabilizes the upper compression member, preventing it from 1602:
as supporting masonry pylons are constructed. This truss has been used in the construction of a stadium, with the upper chords of parallel trusses supporting a roof that may be rolled back. The
2028:
and Caleb Pratt. This truss is practical for use with spans up to 250 feet (76 m) and was a common configuration for railroad bridges as truss bridges moved from wood to metal. They are
394:
on top, in the middle, or at the bottom of the truss. Bridges with the roadbed at the top or the bottom are the most common as this allows both the top and bottom to be stiffened, forming a
2612: 342:
bridges in the US started being built on a large scale in the 1870s. Bowstring truss bridges were a common truss design during this time, with their arched top chords. Companies like the
3244: 525: 2128:, patented by Robert W Smith on July 16, 1867, has mostly diagonal criss-crossed supports. Smith's company used many variations of this pattern in the wooden covered bridges it built. 641: 1820:
facilitated reassembly and permitted a bridge to be adjusted to fit different span lengths. There are twelve known remaining Pegram span bridges in the United States with seven in
1631:
The Pauli truss is a variant of the lenticular truss, "with the top chord carefully shaped so that it has a constant force along the entire length of the truss." It is named after
958:
image, note the use of pairs of doubled trusses to adapt to the span and load requirements. In other applications the trusses may be stacked vertically, and doubled as necessary.
612:, is a continuous, cantilevered truss bridge which combines a suspended road deck on the 332-metre (1,088 ft) main span and through truss decks on the adjacent approach spans 1342: 1329:. In contrast to the Pratt truss, the diagonal web members are in compression and the vertical web members are in tension. Few of these bridges remain standing. Examples include 2267: 1150:
all vertical elements are under tension, with exception of the end posts. This type of truss is particularly suited for timber structures that use iron rods as tension members.
3202: 735: 2683: 2972: 2421:
section above each intermediate support. Only about ten Wichert truss bridges were ever built, mostly in Pennsylvania and Maryland. Of these, one of the best known is the
884:. The first Allan truss was completed on 13 August 1894 over Glennies Creek at Camberwell, New South Wales and the last Allan truss bridge was built over Mill Creek near 3842: 2648: 1668:.) The term Pauli truss is not interchangeable with the term lenticular truss and, according to Thomas Boothby, the casual use of the term has clouded the literature. 856:
Bridges are the most widely known examples of truss use. There are many types, some of them dating back hundreds of years. Below are some of the more common designs.
3480:
A comprehensive inventory of all remaining truss bridges in Ohio. Includes maps, photos, and invites visitor assistance in identifying extant or demolished bridges.
463: 3123: 2745: 2518: 1346: 573:, Japan, is the longest double-decked truss bridge in the world. It carries three lanes of automobile traffic on top and two of rail below over nine truss spans. 334:, was patented, and had the advantage of requiring neither high labor skills nor much metal. Few iron truss bridges were built in the United States before 1850. 3878: 2938: 1066:
compression members. The use of multiple independent tension elements reduces the likelihood of catastrophic failure. The structure was also easy to assemble.
1050:, United States is the only surviving example of a revolutionary design in the history of American bridge engineering. The type was named after its inventor, 1515:
This type of bridge uses a substantial number of lightweight elements, easing the task of construction. Truss elements are usually of wood, iron, or steel.
2243: 1719: 729:
shown below, have two cantilever spans supporting a simple truss in the center. The bridge would remain standing if the simple truss section were removed.
2908: 979: 3291: 3046: 2508:, Members of a Truss Bridge by Benj. F. La Rue, Home Study Magazine, Published by the Colliery Engineer Company, Vol 3, No. 2, March 1898, pages 67-68. 1058:
engineer. It was the first successful all-metal bridge design (patented in 1852) to be adopted and consistently used on a railroad. The design employs
3888: 3868: 3810: 2766: 1394: 1367: 322:, because wood was in abundance, early truss bridges would typically use carefully fitted timbers for members taking compression and iron rods for 3873: 3863: 3526: 2601: 1965:
is a hybrid between a Warren truss and a double-intersection Pratt truss. Invented in 1863 by Simeon S. Post, it is occasionally referred to as a
2802: 2036: 1530: 289:
the structure may take on greater importance and so influence the design decisions beyond mere matters of economics. Modern materials such as
3159: 2858: 2585: 2020:. The interior diagonals are under tension under balanced loading and vertical elements under compression. If pure tension elements (such as 2005: 544: 1710:
The Busching bridge, often erroneously used as an example of a Long truss, is an example of a Howe truss, as the verticals are metal rods.
893: 378:
and several states continued to build steel truss bridges, using massive steel through-truss bridges for long spans. Other states, such as
3483: 3228: 2880: 1914: 1446: 3979: 3590: 2307:
and Willoughby Theobald Monzani, and consists of longitudinal members joined only by angled cross-members, forming alternately inverted
2044: 218:, a structure of connected elements, usually forming triangular units. The connected elements, typically straight, may be stressed from 1338: 3465: 2994: 3883: 3285: 1088: 3193: 3175: 2032:
bridges, which lend themselves well to long spans. They were common in the United States between 1844 and the early 20th century.
3023: 2673: 1180: 516: 425: 2968: 1542:, is the longest lenticular truss bridge in the United States with five spans, and the second-oldest lenticular truss bridge in 1379: 3063: 2678: 2463: 1680: 1176: 885: 58: 774: 2637: 1664: 1267: 1188: 399: 3820: 2501: 2705: 3830: 995: 1112:, a bowstring truss has diagonal load-bearing members: these diagonals result in a structure that more closely matches a 1011: 2737: 2526: 2358: 905: 901: 897: 566: 297:, and the changing price of steel relative to that of labor have significantly influenced the design of modern bridges. 3815: 3729: 3519: 2896: 2232: 2136: 1271: 1263: 633: 402:. When the truss members are both above and below the roadbed it is called a through truss; an example of this is the 3837: 3120: 2380: 1676: 3805: 3131: 2252: 2052: 1938: 1748: 1454: 1426: 1350: 1069: 714: 492: 428:
after such a strike; before the collapse, similar incidents had been common and had necessitated frequent repairs.
251: 1632: 3468:– An illustrated list of different architectural bridge types found in Iowa, US. Many of these are truss bridges. 2930: 1902: 1783:, after local bridge designs proved ineffective against road traffic and heavy rains. It became the standard for 1637: 532: 477: 450: 54: 1695:, but is entirely made of wood instead of a combination of wood and metal. The longest surviving example is the 1072:
is the only other bridge designed by Wendel Bollman still in existence, but it is a Warren truss configuration.
2029: 2001: 1922: 1890: 1607: 1603: 1322: 710: 343: 3322: 1808:
truss vary from near vertical in the center of the span to diagonal near each end, similar to a Warren truss.
1008:; built in 1869, it was moved to Savage in 1887 and has been in continuous use since as a pedestrian bridge. 382:, used standard plan concrete girder and beam bridges, and only a limited number of truss bridges were built. 420:
Since through truss bridges have supports located over the bridge deck, they are susceptible to being hit by
3914: 3898: 3893: 3858: 3800: 3423: 3275: 3043: 2403: 2304: 1910: 1582: 1358: 1282: 917: 913: 697: 3105:, Pegram, George H., "Truss for Roofs and Bridges", published 10-24-1881, issued 03-24-1885 2777: 1643: 3974: 3660: 3605: 3512: 2445:
Driving across a truss bridge: The video shows the roadway perspective of a through truss bridge over the
2422: 2407: 2384: 1942: 1626: 1539: 1502: 1450: 629: 223: 3462:– Many photos of truss bridges are available on this informative and mainly truss-focused bridge website. 837: 417:. This can be used to separate rail from road traffic or to separate the two directions of road traffic. 2060: 1906: 1878: 1696: 1535: 1400: 1354: 609: 3778: 2216: 664: 2806: 2108:
action to provide mechanical stability. This truss style is only suitable for relatively short spans.
3825: 3767: 3690: 3396: 3102: 2132: 1934: 1926: 1918: 1882: 1813: 1622: 1510: 806: 331: 290: 164: 2346: 3741: 3575: 3317: 2877: 2710: 2271: 2048: 2025: 1886: 1704: 1613: 1586: 1554: 1055: 920:. Also constructed of ironbark, the bridge is still in use today for pedestrian and light traffic. 351: 219: 160: 3702: 3685: 3665: 3655: 3650: 2450: 2410:
and helps avoid some of the other shortcomings of continuous trusses. It was patented in 1930 by
1833: 693: 414: 114: 96: 3565: 2016:
includes vertical members and diagonals that slope down towards the center, the opposite of the
1325:, includes vertical members and diagonals that slope up towards the center, the opposite of the 3225: 3151: 3145: 2263:); its simplicity eases erection at the site. It was intended to be used as a railroad bridge. 3919: 3724: 3610: 3585: 3560: 3281: 3155: 2854: 2581: 2388: 2354: 2316: 2221: 2211: 2176: 1930: 1760: 1732: 1203: 900:
and the oldest, longest continuously used Allan truss bridge. Completed in November 1895, the
864: 841: 721: 267: 92: 88: 1574:
bridge is a specific variant of the lenticular truss, but the terms are not interchangeable.
3953: 3697: 3344: 2446: 2105: 2056: 1974: 1862: 1809: 1780: 1223:
Most trusses have the lower chord under tension and the upper chord under compression. In a
1109: 1047: 1005: 782: 746: 307: 3795: 3630: 3232: 3127: 3050: 2998: 2917: 2884: 2505: 2418: 2071: 1894: 1550: 1184: 1171: 1093: 702: 605: 586: 454: 347: 2467: 2074:, is an example of a Pratt deck truss bridge, where the roadway is on top of the truss. 1648: 647:
Chevelon Creek Warren Pony Truss Bridge,Chevelon Creek, Navajo County Arizona built 1913
234: 3935: 3756: 3746: 3712: 3645: 3635: 3595: 2369: 1970: 1784: 1756: 1736: 1498: 1453:(Morgan City Bridge) with three 600-foot-long spans, and the Wax Lake Outlet bridge in 1216: 1105: 1051: 625: 403: 327: 323: 211: 175: 100: 31: 3474:– An enormous database of historic bridges. Over 17,400 truss bridges are listed here. 3019: 1993: 406:, and where the sides extend above the roadbed but are not connected, a pony truss or 3968: 3736: 3580: 2199: 2067: 1898: 1543: 1334: 1316: 948: 940: 889: 802: 750: 726: 536: 421: 398:. When the roadbed is atop the truss, it is a deck truss; an example of this was the 391: 319: 3369: 3067: 1621:
An example of a lenticular pony truss bridge that uses regular spans of iron is the
1577:
One type of lenticular truss consists of arcuate upper compression chords and lower
896:, was the second Allan truss bridge to be built, the oldest surviving bridge in the 3675: 3670: 2350: 2339: 2293: 2283: 2181: 1212: 1059: 778: 660: 500: 496: 407: 375: 368: 339: 278: 1850: 1208: 277:
at the top, vertical members are in tension, lower horizontal members in tension,
2776:. Heritage Council of New South Wales. 5 November 2008. p. 5. Archived from 2552: 2498: 3707: 3680: 3625: 3600: 3555: 3550: 3313:"Thacher Truss Bridge, Spanning Linville Creek, Broadway, Rockingham County, VA" 2715: 1590: 1326: 1259: 1138: 1133: 1117: 983: 877: 601: 70: 2088: 1857: 1523: 1000: 3640: 3620: 3615: 3570: 3498: 2411: 2392: 2195: 2093: 2083: 1829: 1771: 1700: 1470: 1385: 1330: 1319: 1304: 1294: 1247: 1237: 1194:
This combines an arch with a truss to form a structure both strong and rigid.
1080: 966: 881: 473: 130: 126: 118: 110: 3088:
Kennedy, Willella Shearer. "Heritage: Being Little Stories of Union County".
2259: 1274:
included 21 Fink deck truss spans from 1869 until their replacement in 1886.
1026: 1013: 358:, became well-known, as they marketed their designs to cities and townships. 1752: 1465: 1430: 1121: 1063: 395: 355: 190: 3488: 2836: 2332: 2147: 1490: 17: 3504: 3377:. Maryland Department of Transportation State Highway Administration. 1995 2288: 1725: 928: 3717: 2321: 2308: 2040: 1617:
The old GroĂźhesselohe bridge before 1905, designed by Friedrich von Pauli
1598: 909: 379: 282: 247: 3371:
Historic Highway Bridges in Maryland: 1631-1960, Historic Context Report
2116: 1985: 1482:
consists of two angled supports leaning into a common vertical support.
3761: 1953: 1299: 1242: 935: 912:
for its strength. A similar bridge also designed by Percy Allen is the
754: 668: 294: 274: 263: 259: 255: 413:
Sometimes both the upper and lower chords support roadbeds, forming a
3535: 2826:
Google-maps "-34.180255,150.610654" clearly shows bridge with traffic
2021: 1825: 1718:"Camelback bridge" redirects here. For the concrete bridge type, see 1703:, spanning 224 feet (68 m). One of the earliest examples is the 1658: 1578: 810: 207: 148: 3312: 1413: 2379: 2345: 2338: 2331: 2312: 2287: 2242: 2215: 2180: 2146: 2115: 2087: 2000: 1992: 1984: 1952: 1856: 1849: 1821: 1795: 1794: 1770: 1731: 1724: 1675: 1612: 1594: 1549: 1529: 1522: 1497: 1489: 1469: 1420: 1412: 1298: 1241: 1207: 1175: 1137: 1087: 1079: 999: 965: 934: 927: 863: 570: 363: 243: 233: 215: 156: 122: 50: 3489:
Management Plan for Historic Bridges in Virginia: The 2017 Update
3459: 2453:. The bridge features three simply supported Parker Truss spans. 3477: 1837: 1691:
was designed by Stephen H. Long in 1830. The design resembles a
1654: 250:
of its structure using a few assumptions and the application of
152: 3508: 3424:"From Browns to Grays: Evolution of the Homestead Grays Bridge" 3195:
Maryland Historical Trust Property Number PG-74B-1 & AA-85I
2131:
While most all of the bridges built in the 19th century in the
27:
Bridge whose load-bearing superstructure is composed of a truss
3471: 2468:"Trusses: A Study by the Historic American Engineering Record" 822: 2311:-shaped spaces along its length, ensuring that no individual 1262:
of Germany in 1854. This type of bridge was popular with the
3777: 2235:, which affects both interior and exterior styling aspects. 196:
Depends upon length, materials, and degree of prefabrication
330:
to protect the structure. In 1820, a simple form of truss,
3092:, Printed by The Marysville Journal Tribune. 1963. Pg. 48. 3066:. CLR Inc. Construction and Transportation. Archived from 2853:. Minneapolis: University of Minnesota Press. p. 51. 2851:
Wood, Concrete, Stone, Steel: Minnesota's Historic Bridges
2414:-based civil engineer Edward Martin Wichert (1883–1955). 1787:
built in central Ohio in the late 1800s and early 1900s.
1812:, while the chief engineer of Edge Moor Iron Company in 720:
A multi-span truss bridge may also be constructed using
3494: 3044:
Eldean Covered Bridge – Troy, Ohio – Covered Bridges on
2969:"Designing American Lenticular Truss Bridges 1878–1900" 1307:
with diagonals under compression under balanced loading
140:
Short to medium – not very long unless it is continuous
3121:
National Register of Historic Places Registration Form
2767:"Minutes of State Heritage Register Committee meeting" 2674:"1307.8 – Australian Capital Territory in Focus, 2007" 682:
Railroad Truss Drawbridge across Buffalo Bayou—Houston
515:
The through truss Skagit River bridge on Interstate 5
2557:. New York: D. Appleton and Company. pp. 161–174 1343:
Slippery Rock Township, Lawrence County, Pennsylvania
3134:, California State Park System, accessed 2011-12-26. 2519:"Temporary Skagit River bridge may be open in weeks" 2417:
The defining feature of this truss type is a hinged
2353:, a double-intersection Whipple rail truss over the 1997:
Gatton Railway Bridge showing the Pratt truss design
519:
after an overhead support was hit by a passing truck
3928: 3907: 3851: 3788: 3543: 2008:, a Pratt truss design at Kempsey in NSW, Australia 1478:One of the simplest truss styles to implement, the 1373:
A large timber Howe truss in a commercial building.
713:, which makes them difficult to design without the 189: 181: 170: 144: 136: 106: 84: 76: 66: 2580:. GB: Cambridge Scholars Publishing. p. 206. 2139:is the last known surviving example in the state. 3843:List of lists of covered bridges in North America 2714:. Canberra's Engineering Heritage. Archived from 2167:with diagonals under compression, which is rare. 1865:is an example of Pennsylvania Petit truss bridge. 1755:, Canada. An example of a camelback truss is the 1494:Lattice, or Warren quadrangular truss illustrated 1969:although he never received a patent for it. The 659:Side view of the iron truss railway bridge over 61:converted to pedestrian use and pipeline support 2551:Adams, Charles Kendall, ed. (1909). "Bridges". 2805:. Timber Building in Australia. Archived from 2611:. Roads and Traffic Authority. December 1998. 2055:near Augusta, Montana, built in 1897; and the 585:Railroad Truss bridge over Trinity River near 3520: 3422:Wilson, Helen; Wilson, Todd (November 2017). 8: 2738:"July 2010 Newsletter | Engineers Australia" 2647:. Roads ACT. 5 March 2009. pp. 42, 45. 2638:"Tharwa Bridge Conservation Management Plan" 37: 3484:Matsuo Bridge Company: Bridge Types – Truss 3251:. United States of America. July 16, 1867. 3150:. New York: John Wiley & Sons. p.  2546: 2544: 2247:Waddell "A" truss bridge, assembled in 1898 1720:concrete curved-chord through girder bridge 836:It has been suggested that this section be 293:and fabrication methods, such as automated 3527: 3513: 3505: 3460:Historic Bridges of Michigan and Elsewhere 3201:, Maryland Inventory of Historic Bridges, 3053:. Waymarking.com. Retrieved on 2013-07-23. 2962: 2960: 2958: 2956: 2159:combines some of the characteristics of a 692:Truss bridges consisting of more than one 3397:"E. M. Wichert Services Set For Tomorrow" 3280:. Somerset Publishers, Inc. p. 794. 3277:Ohio Historic Places Dictionary, Volume 2 2920:- Retrieved 2020-03-23 (section 3, pp 71) 2872: 2870: 3349:. New York: D. Van Nostrand Company, Inc 2135:, area used the Smith truss design, the 2035:Examples of Pratt truss bridges are the 238:The components of a typical truss bridge 2931:"Aiken Street Bridge: Ouellette Bridge" 2609:McMillan Britton & Kell Pty Limited 2491: 1363: 731: 435: 3188: 3186: 3184: 2910:Historic Context for Louisiana Bridges 2163:with diagonals under tension and of a 1816:, patented this truss design in 1885. 888:in 1929. Completed in March 1895, the 709:the mid-20th century because they are 36: 3255:from the original on 11 November 2018 3208:from the original on 26 December 2013 2654:from the original on 21 February 2011 1159: 980:Amtrak Old Saybrook – Old Lyme Bridge 7: 3478:Iron and Early Steel Bridges of Ohio 2975:from the original on 5 November 2020 2686:from the original on 14 October 2012 2578:Planar Trusses: Schemes and Formulas 2464:Historic American Engineering Record 1486:Lattice truss (Town's lattice truss) 894:Tharwa, Australian Capital Territory 1610:, is another example of this type. 1108:. While similar in appearance to a 3178:in European Patent Office database 2803:"Hampden Bridge, Wagga Wagga, NSW" 2618:from the original on 19 March 2011 2198:segments from each side as in the 25: 3811:medieval stone bridges in Germany 2774:State Heritage Register Committee 1779:Designed and patented in 1872 by 1642:, whose 1857 railway bridge (the 1625:designed and manufactured by the 1113: 426:I-5 Skagit River bridge collapsed 273:In the bridge illustrated in the 266:loads upon the elements, as in a 3949: 3948: 3245:"R.W. Smith Truss Patent 66,900" 2941:from the original on 9 July 2018 2433: 2160: 1977:are two examples of this truss. 1874: 1403:showing its wooden truss design. 1393: 1378: 1366: 827: 790: 762: 734: 675: 652: 640: 617: 593: 578: 558: 543: 524: 508: 484: 462: 438: 43: 3325:from the original on 2020-12-13 3294:from the original on 2020-06-14 3147:Great American Bridges and Dams 3090:Union County Historical Society 3026:from the original on 2018-05-02 3020:"CoveredBridgeSite, Long truss" 2748:from the original on 2021-10-01 2679:Australian Bureau of Statistics 2164: 2017: 1915:Easton–Phillipsburg Toll Bridge 1692: 1339:McConnell's Mill Covered Bridge 1104:bridge was patented in 1841 by 457:; abandoned since the mid-1980s 59:Contra Costa County, California 2554:Universal Cyclopædia and Atlas 2525:. May 26, 2013. Archived from 1665:Grosshesselohe Isartal station 1485: 1189:Lancaster County, Pennsylvania 400:I-35W Mississippi River bridge 1: 3768:Visual index to various types 2742:www.engineersaustralia.org.au 1250:(half span and cross section) 1181:Baumgardener's Covered Bridge 1092:A bowstring truss bridge, in 1044:Bollman Truss Railroad Bridge 996:Bollman Truss Railroad Bridge 553:bridge of reinforced concrete 3591:Cantilever spar cable-stayed 3472:Historic Bridges of the U.S. 3274:Lorrie K. Owen, ed. (1999). 3226:Covered Bridge's Truss Types 2006:Macleay River Railway Bridge 1633:Friedrich Augustus von Pauli 1568:lenticular pony truss bridge 906:Wagga Wagga, New South Wales 898:Australian Capital Territory 840:out into another article. ( 567:Kansai International Airport 491:The four span through truss 308:model bridges from spaghetti 3411:– via Newspapers.com. 3249:United States Patent Office 3144:Jackson, Donald C. (1995). 2995:"Arizona Cardinals Stadium" 2368:, named after its inventor 2137:Johnson Road Covered Bridge 1272:Norfolk and Western Railway 1264:Baltimore and Ohio Railroad 819:Truss types used in bridges 634:Leflore County, Mississippi 424:when used on highways. The 326:, usually constructed as a 254:according to the branch of 3996: 3980:Bridges by structural type 3132:Healdsburg Memorial Bridge 2849:Gardner, Denis P. (2008). 2281: 2253:John Alexander Low Waddell 2250: 2209: 2174: 2081: 2053:Dearborn River High Bridge 1939:Healdsburg Memorial Bridge 1871:Pennsylvania (Petit) truss 1846:Pennsylvania (Petit) truss 1739:, a Parker camelback truss 1717: 1557:under construction in 1859 1508: 1463: 1351:Jefferson County, Missouri 1347:Sandy Creek Covered Bridge 1292: 1235: 1201: 1169: 1131: 1070:Wells Creek Bollman Bridge 993: 946: 775:Kingston–Rhinecliff Bridge 29: 3944: 3775: 2887:, accessed September 2007 2359:Golden's Bridge, New York 1903:Northfield, Massachusetts 1474:King post truss 1388:showing the truss design. 1027:39.1348389°N 76.8250917°W 880:, is partly based on the 503:carries vehicular traffic 472:railroad bridge over the 451:Seaboard Air Line Railway 55:Southern Pacific Railroad 42: 3879:Continuous truss bridges 3852:Lists of bridges by size 3789:Lists of bridges by type 3466:Historic Bridges of Iowa 3431:Historic Bridge Bulletin 3343:Steinman, D. B. (1932). 3174:Thomas and Caleb Pratt, 2967:Boothby, Thomas (2020). 2645:Philip Leeson Architects 2303:was patented in 1848 by 2268:Waddell "A" Truss Bridge 1923:Connecticut River Bridge 1891:Fort Wayne Street Bridge 1714:Parker (camelback) truss 1608:Pittsburgh, Pennsylvania 1604:Smithfield Street Bridge 1566:roadbed, it is called a 711:statically indeterminate 390:The truss may carry its 374:In the 1920s and 1930s, 344:Massillon Bridge Company 30:Not to be confused with 3401:Pittsburgh Post-Gazette 2971:. History Cooperative. 2876:Matsuo Bridge Company, 2473:. National Park Service 1911:Johnstown, Pennsylvania 1683:diagram of a Long truss 1534:Aiken Street Bridge in 1359:Delta, British Columbia 1283:Moody Pedestrian Bridge 1032:39.1348389; -76.8250917 918:Picton, New South Wales 252:Newton's laws of motion 3838:List of bridge–tunnels 3782: 3606:Double-beam drawbridge 2602:"Timber Truss Bridges" 2423:Homestead Grays Bridge 2408:statically determinate 2402:is a modified type of 2395: 2385:Homestead Grays Bridge 2361: 2343: 2336: 2296: 2248: 2224: 2186: 2152: 2151:A Thacher truss bridge 2121: 2097: 2030:statically determinate 2009: 1998: 1990: 1958: 1943:Healdsburg, California 1873:is a variation on the 1866: 1854: 1800: 1776: 1775:Partridge truss design 1740: 1729: 1684: 1627:Berlin Iron Bridge Co. 1618: 1558: 1547: 1540:Berlin Iron Bridge Co. 1527: 1506: 1503:Runcorn Railway Bridge 1495: 1475: 1451:Morgan City, Louisiana 1433: 1418: 1315:, patented in 1840 by 1308: 1268:Appomattox High Bridge 1251: 1220: 1191: 1143: 1097: 1085: 1039: 970: 944: 939:Bailey truss over the 932: 869: 493:General Hertzog Bridge 239: 3831:vertical-lift bridges 3781: 3368:"The Wichert Truss". 2899:- Reviewed 2020-03-23 2576:Kirsanov, M. (2019). 2383: 2349: 2342: 2335: 2291: 2246: 2219: 2184: 2150: 2119: 2091: 2061:Fair Oaks, California 2051:, built in 1882; the 2004: 1996: 1988: 1956: 1907:Inclined Plane Bridge 1879:Pennsylvania Railroad 1860: 1853: 1798: 1774: 1735: 1728: 1697:Eldean Covered Bridge 1679: 1644:GroĂźhesseloher BrĂĽcke 1616: 1581:chain tension links. 1553: 1536:Lowell, Massachusetts 1533: 1526: 1501: 1493: 1473: 1424: 1416: 1401:Westham Island Bridge 1355:Westham Island Bridge 1302: 1245: 1211: 1179: 1141: 1091: 1083: 1003: 969: 938: 931: 867: 610:Jacksonville, Florida 565:Sky Gate Bridge R at 237: 174:May be movable – see 3889:Masonry arch bridges 3869:Cable-stayed bridges 3501:database on bridges. 2878:Bridge Types – Truss 2682:. 27 November 2007. 2499:Science and Industry 2309:equilateral triangle 2266:One example was the 2133:Jackson County, Ohio 1935:Metropolis, Illinois 1927:Brattleboro, Vermont 1919:Easton, Pennsylvania 1883:Lower Trenton Bridge 1814:Wilmington, Delaware 1623:Turn-of-River Bridge 1511:Lattice truss bridge 1281:bridges such as the 1062:tension members and 807:Saint Lawrence River 332:Town's lattice truss 291:prestressed concrete 165:prestressed concrete 3816:multi-level bridges 3318:Library of Congress 2935:HistoricBridges.org 2711:Engineers Australia 2322:isosceles triangles 2272:Parkville, Missouri 2260:U.S. patent 529,220 2049:Springfield, Oregon 1887:Trenton, New Jersey 1705:Old Blenheim Bridge 1587:Royal Albert Bridge 1555:Royal Albert Bridge 1538:, built in 1883 by 1440:is named after the 1279:inverted Fink truss 1219:in eastern Scotland 1023: /  1004:A Bollman truss in 415:double-decked truss 352:King Bridge Company 210:whose load-bearing 161:reinforced concrete 53:bridge operated by 39: 3874:Cantilever bridges 3864:Suspension bridges 3806:cantilever bridges 3783: 3703:Navigable aqueduct 3231:2006-09-04 at the 3126:2013-01-15 at the 3070:on August 20, 2011 3049:2012-10-18 at the 2916:2020-12-24 at the 2883:2006-09-05 at the 2504:2017-02-15 at the 2451:Harrisburg, Oregon 2429:Truss bridge video 2396: 2362: 2344: 2337: 2297: 2249: 2225: 2187: 2153: 2122: 2098: 2010: 1999: 1991: 1959: 1867: 1855: 1828:, and one each in 1801: 1777: 1741: 1730: 1685: 1619: 1559: 1548: 1528: 1507: 1496: 1476: 1455:Calumet, Louisiana 1434: 1419: 1309: 1285:in Austin, Texas. 1252: 1221: 1192: 1144: 1098: 1086: 1054:, a self-educated 1040: 971: 945: 933: 916:on Prince Street, 870: 478:Lockport, New York 240: 97:transporter bridge 3962: 3961: 3920:Bridge to nowhere 3821:road–rail bridges 3538:-related articles 3346:The Wichert Truss 3161:978-0-471-14385-7 3064:"Busching Bridge" 2860:978-0-8166-4666-1 2837:U.S. patent 2,064 2587:978-1-5275-3531-2 2523:King 5 television 2442: 2389:Monongahela River 2355:Muscoot Reservoir 2222:Vierendeel bridge 2212:Vierendeel bridge 2185:Truss arch bridge 2177:Truss arch bridge 2063:, built 1907–09. 2037:Governor's Bridge 1967:Post patent truss 1931:Metropolis Bridge 1799:Pegram truss 1761:Woolsey, Arkansas 1505:, a lattice truss 1447:Long–Allen Bridge 1204:Cantilever bridge 986:, United States. 854: 853: 849: 533:San Jacinto River 214:is composed of a 200: 199: 93:truss arch bridge 89:Cantilever bridge 16:(Redirected from 3987: 3952: 3951: 3908:Additional lists 3544:Structural types 3529: 3522: 3515: 3506: 3447: 3446: 3444: 3442: 3428: 3419: 3413: 3412: 3410: 3408: 3403:. March 23, 1955 3393: 3387: 3386: 3384: 3382: 3376: 3365: 3359: 3358: 3356: 3354: 3340: 3334: 3333: 3331: 3330: 3309: 3303: 3302: 3300: 3299: 3271: 3265: 3264: 3262: 3260: 3241: 3235: 3223: 3217: 3216: 3215: 3213: 3207: 3200: 3190: 3179: 3172: 3166: 3165: 3141: 3135: 3118: 3112: 3111: 3110: 3106: 3099: 3093: 3086: 3080: 3079: 3077: 3075: 3060: 3054: 3041: 3035: 3034: 3032: 3031: 3016: 3010: 3009: 3007: 3006: 2997:. Archived from 2991: 2985: 2984: 2982: 2980: 2964: 2951: 2950: 2948: 2946: 2927: 2921: 2906: 2900: 2894: 2888: 2874: 2865: 2864: 2846: 2840: 2839: 2833: 2827: 2824: 2818: 2817: 2815: 2814: 2799: 2793: 2792: 2790: 2788: 2783:on 17 March 2011 2782: 2771: 2763: 2757: 2756: 2754: 2753: 2734: 2728: 2727: 2725: 2723: 2702: 2696: 2695: 2693: 2691: 2670: 2664: 2663: 2661: 2659: 2653: 2642: 2634: 2628: 2627: 2625: 2623: 2617: 2606: 2598: 2592: 2591: 2573: 2567: 2566: 2564: 2562: 2548: 2539: 2538: 2536: 2534: 2515: 2509: 2496: 2481: 2479: 2478: 2472: 2447:Willamette River 2444: 2443: 2404:continuous truss 2262: 2229:Vierendeel truss 2206:Vierendeel truss 2057:Fair Oaks Bridge 2045:Hayden RR Bridge 1975:Bell Ford Bridge 1863:Fair Oaks Bridge 1810:George H. Pegram 1781:Reuben Partridge 1652: 1641: 1563:lenticular truss 1519:Lenticular truss 1397: 1382: 1370: 1258:was designed by 1225:cantilever truss 1198:Cantilever truss 1160:Lenticular truss 1110:tied-arch bridge 1048:Savage, Maryland 1038: 1037: 1035: 1034: 1033: 1028: 1024: 1021: 1020: 1019: 1016: 1006:Savage, Maryland 845: 831: 830: 823: 799:cantilever truss 794: 771:continuous truss 766: 747:Vivekananda Setu 738: 715:use of computers 698:continuous truss 696:may be either a 679: 656: 644: 621: 597: 582: 562: 547: 535:truss bridge in 528: 512: 488: 466: 442: 422:overheight loads 268:Vierendeel truss 242:The nature of a 47: 40: 21: 3995: 3994: 3990: 3989: 3988: 3986: 3985: 3984: 3965: 3964: 3963: 3958: 3940: 3924: 3915:Bridge failures 3903: 3847: 3801:bascule bridges 3796:List of bridges 3784: 3773: 3661:Rolling bascule 3539: 3533: 3456: 3451: 3450: 3440: 3438: 3426: 3421: 3420: 3416: 3406: 3404: 3395: 3394: 3390: 3380: 3378: 3374: 3367: 3366: 3362: 3352: 3350: 3342: 3341: 3337: 3328: 3326: 3311: 3310: 3306: 3297: 3295: 3288: 3273: 3272: 3268: 3258: 3256: 3243: 3242: 3238: 3233:Wayback Machine 3224: 3220: 3211: 3209: 3205: 3198: 3192: 3191: 3182: 3173: 3169: 3162: 3143: 3142: 3138: 3128:Wayback Machine 3119: 3115: 3108: 3101: 3100: 3096: 3087: 3083: 3073: 3071: 3062: 3061: 3057: 3051:Wayback Machine 3042: 3038: 3029: 3027: 3018: 3017: 3013: 3004: 3002: 2993: 2992: 2988: 2978: 2976: 2966: 2965: 2954: 2944: 2942: 2929: 2928: 2924: 2918:Wayback Machine 2907: 2903: 2895: 2891: 2885:Wayback Machine 2875: 2868: 2861: 2848: 2847: 2843: 2835: 2834: 2830: 2825: 2821: 2812: 2810: 2801: 2800: 2796: 2786: 2784: 2780: 2769: 2765: 2764: 2760: 2751: 2749: 2736: 2735: 2731: 2721: 2719: 2706:"Tharwa Bridge" 2704: 2703: 2699: 2689: 2687: 2672: 2671: 2667: 2657: 2655: 2651: 2640: 2636: 2635: 2631: 2621: 2619: 2615: 2604: 2600: 2599: 2595: 2588: 2575: 2574: 2570: 2560: 2558: 2550: 2549: 2542: 2532: 2530: 2529:on June 7, 2013 2517: 2516: 2512: 2506:Wayback Machine 2497: 2493: 2488: 2476: 2474: 2470: 2462: 2459: 2434: 2431: 2425:in Pittsburgh. 2378: 2330: 2286: 2280: 2258: 2257:Patented 1894 ( 2255: 2241: 2214: 2208: 2179: 2173: 2145: 2114: 2102:queenpost truss 2086: 2080: 2078:Queenpost truss 2072:Tarkio, Montana 1983: 1951: 1895:Goshen, Indiana 1848: 1793: 1785:covered bridges 1769: 1767:Partridge truss 1723: 1716: 1674: 1646: 1635: 1521: 1513: 1488: 1468: 1462: 1411: 1404: 1398: 1389: 1383: 1374: 1371: 1297: 1291: 1277:There are also 1240: 1234: 1215:, crossing the 1206: 1200: 1185:Burr Arch Truss 1174: 1172:Burr Arch Truss 1168: 1166:Burr arch truss 1156: 1136: 1130: 1102:bowstring truss 1094:London, Ontario 1084:Bowstring truss 1078: 1076:Bowstring truss 1031: 1029: 1025: 1022: 1017: 1014: 1012: 1010: 1009: 998: 992: 975:Baltimore truss 964: 962:Baltimore truss 951: 926: 914:Victoria Bridge 862: 850: 847:(February 2023) 832: 828: 821: 814: 795: 786: 785:, United States 767: 758: 739: 690: 683: 680: 671: 665:Mursko Središće 657: 648: 645: 636: 622: 613: 606:St. Johns River 598: 589: 587:Goodrich, Texas 583: 574: 563: 554: 548: 539: 529: 520: 513: 504: 489: 480: 467: 458: 455:Willow, Florida 453:, located near 443: 434: 388: 371:truss bridges. 348:Massillon, Ohio 324:tension members 316: 303: 232: 62: 35: 28: 23: 22: 15: 12: 11: 5: 3993: 3991: 3983: 3982: 3977: 3967: 3966: 3960: 3959: 3957: 3956: 3945: 3942: 3941: 3939: 3938: 3936:Bridges in art 3932: 3930: 3926: 3925: 3923: 3922: 3917: 3911: 3909: 3905: 3904: 3902: 3901: 3896: 3891: 3886: 3881: 3876: 3871: 3866: 3861: 3855: 3853: 3849: 3848: 3846: 3845: 3840: 3835: 3834: 3833: 3828: 3823: 3818: 3813: 3808: 3803: 3792: 3790: 3786: 3785: 3776: 3774: 3772: 3771: 3764: 3759: 3754: 3749: 3744: 3739: 3734: 3733: 3732: 3722: 3721: 3720: 3710: 3705: 3700: 3695: 3694: 3693: 3688: 3683: 3678: 3673: 3668: 3663: 3658: 3653: 3648: 3643: 3638: 3628: 3623: 3618: 3613: 3608: 3603: 3598: 3593: 3588: 3583: 3578: 3573: 3568: 3563: 3558: 3553: 3547: 3545: 3541: 3540: 3534: 3532: 3531: 3524: 3517: 3509: 3503: 3502: 3492: 3486: 3481: 3475: 3469: 3463: 3455: 3454:External links 3452: 3449: 3448: 3414: 3388: 3360: 3335: 3304: 3286: 3266: 3236: 3218: 3180: 3176:US patent 3523 3167: 3160: 3136: 3113: 3094: 3081: 3055: 3036: 3011: 2986: 2952: 2922: 2901: 2889: 2866: 2859: 2841: 2828: 2819: 2794: 2758: 2729: 2697: 2665: 2629: 2593: 2586: 2568: 2540: 2510: 2490: 2489: 2487: 2484: 2483: 2482: 2458: 2455: 2430: 2427: 2377: 2374: 2370:Squire Whipple 2329: 2326: 2282:Main article: 2279: 2276: 2251:Main article: 2240: 2237: 2210:Main article: 2207: 2204: 2175:Main article: 2172: 2169: 2144: 2141: 2113: 2110: 2082:Main article: 2079: 2076: 1982: 1979: 1971:Ponakin Bridge 1950: 1947: 1847: 1844: 1792: 1789: 1768: 1765: 1757:Woolsey Bridge 1749:Traffic Bridge 1737:Woolsey Bridge 1715: 1712: 1673: 1670: 1653:) spanned the 1520: 1517: 1509:Main article: 1487: 1484: 1464:Main article: 1461: 1460:Kingpost truss 1458: 1410: 1407: 1406: 1405: 1399: 1392: 1390: 1384: 1377: 1375: 1372: 1365: 1293:Main article: 1290: 1287: 1236:Main article: 1233: 1230: 1217:Firth of Forth 1202:Main article: 1199: 1196: 1170:Main article: 1167: 1164: 1155: 1152: 1132:Main article: 1129: 1126: 1106:Squire Whipple 1077: 1074: 1052:Wendel Bollman 994:Main article: 991: 988: 963: 960: 947:Main article: 925: 922: 902:Hampden Bridge 886:Wisemans Ferry 876:, designed by 868:An Allan truss 861: 858: 852: 851: 835: 833: 826: 820: 817: 816: 815: 796: 789: 787: 768: 761: 759: 740: 733: 689: 688:Multiple spans 686: 685: 684: 681: 674: 672: 658: 651: 649: 646: 639: 637: 626:railway bridge 623: 616: 614: 599: 592: 590: 584: 577: 575: 564: 557: 555: 549: 542: 540: 530: 523: 521: 514: 507: 505: 490: 483: 481: 468: 461: 459: 449:of the former 444: 437: 433: 430: 404:Pulaski Skyway 387: 384: 328:covered bridge 315: 312: 302: 299: 231: 228: 212:superstructure 198: 197: 194: 187: 186: 183: 179: 178: 176:movable bridge 172: 168: 167: 146: 142: 141: 138: 134: 133: 108: 104: 103: 101:lattice bridge 86: 82: 81: 78: 74: 73: 68: 64: 63: 48: 32:trestle bridge 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3992: 3981: 3978: 3976: 3975:Truss bridges 3973: 3972: 3970: 3955: 3947: 3946: 3943: 3937: 3934: 3933: 3931: 3927: 3921: 3918: 3916: 3913: 3912: 3910: 3906: 3900: 3897: 3895: 3892: 3890: 3887: 3885: 3882: 3880: 3877: 3875: 3872: 3870: 3867: 3865: 3862: 3860: 3857: 3856: 3854: 3850: 3844: 3841: 3839: 3836: 3832: 3829: 3827: 3824: 3822: 3819: 3817: 3814: 3812: 3809: 3807: 3804: 3802: 3799: 3798: 3797: 3794: 3793: 3791: 3787: 3780: 3770: 3769: 3765: 3763: 3760: 3758: 3755: 3753: 3750: 3748: 3745: 3743: 3740: 3738: 3735: 3731: 3728: 3727: 3726: 3723: 3719: 3716: 3715: 3714: 3711: 3709: 3706: 3704: 3701: 3699: 3696: 3692: 3691:Vertical-lift 3689: 3687: 3684: 3682: 3679: 3677: 3674: 3672: 3669: 3667: 3664: 3662: 3659: 3657: 3654: 3652: 3649: 3647: 3644: 3642: 3639: 3637: 3634: 3633: 3632: 3629: 3627: 3624: 3622: 3619: 3617: 3614: 3612: 3609: 3607: 3604: 3602: 3599: 3597: 3594: 3592: 3589: 3587: 3584: 3582: 3579: 3577: 3574: 3572: 3569: 3567: 3566:Bridge–tunnel 3564: 3562: 3559: 3557: 3554: 3552: 3549: 3548: 3546: 3542: 3537: 3530: 3525: 3523: 3518: 3516: 3511: 3510: 3507: 3500: 3496: 3495:structurae.de 3493: 3490: 3487: 3485: 3482: 3479: 3476: 3473: 3470: 3467: 3464: 3461: 3458: 3457: 3453: 3436: 3432: 3425: 3418: 3415: 3402: 3398: 3392: 3389: 3373: 3372: 3364: 3361: 3348: 3347: 3339: 3336: 3324: 3320: 3319: 3314: 3308: 3305: 3293: 3289: 3287:9781878592705 3283: 3279: 3278: 3270: 3267: 3254: 3250: 3246: 3240: 3237: 3234: 3230: 3227: 3222: 3219: 3204: 3197: 3196: 3189: 3187: 3185: 3181: 3177: 3171: 3168: 3163: 3157: 3153: 3149: 3148: 3140: 3137: 3133: 3129: 3125: 3122: 3117: 3114: 3104: 3098: 3095: 3091: 3085: 3082: 3069: 3065: 3059: 3056: 3052: 3048: 3045: 3040: 3037: 3025: 3021: 3015: 3012: 3001:on 2007-11-03 3000: 2996: 2990: 2987: 2974: 2970: 2963: 2961: 2959: 2957: 2953: 2940: 2936: 2932: 2926: 2923: 2919: 2915: 2912: 2911: 2905: 2902: 2898: 2893: 2890: 2886: 2882: 2879: 2873: 2871: 2867: 2862: 2856: 2852: 2845: 2842: 2838: 2832: 2829: 2823: 2820: 2809:on 2013-05-12 2808: 2804: 2798: 2795: 2779: 2775: 2768: 2762: 2759: 2747: 2743: 2739: 2733: 2730: 2718:on 2011-02-19 2717: 2713: 2712: 2707: 2701: 2698: 2685: 2681: 2680: 2675: 2669: 2666: 2650: 2646: 2639: 2633: 2630: 2614: 2610: 2603: 2597: 2594: 2589: 2583: 2579: 2572: 2569: 2556: 2555: 2547: 2545: 2541: 2528: 2524: 2520: 2514: 2511: 2507: 2503: 2500: 2495: 2492: 2485: 2469: 2465: 2461: 2460: 2456: 2454: 2452: 2448: 2428: 2426: 2424: 2420: 2415: 2413: 2409: 2405: 2401: 2400:Wichert truss 2394: 2390: 2386: 2382: 2376:Wichert truss 2375: 2373: 2371: 2367: 2366:Whipple truss 2360: 2356: 2352: 2348: 2341: 2334: 2328:Whipple truss 2327: 2325: 2323: 2318: 2314: 2310: 2306: 2302: 2295: 2290: 2285: 2277: 2275: 2273: 2269: 2264: 2261: 2254: 2245: 2239:Waddell truss 2238: 2236: 2234: 2230: 2223: 2218: 2213: 2205: 2203: 2201: 2200:Navajo Bridge 2197: 2192: 2183: 2178: 2170: 2168: 2166: 2162: 2158: 2157:Thacher truss 2149: 2143:Thacher truss 2142: 2140: 2138: 2134: 2129: 2127: 2118: 2111: 2109: 2107: 2103: 2095: 2090: 2085: 2077: 2075: 2073: 2069: 2068:Scenic Bridge 2064: 2062: 2058: 2054: 2050: 2046: 2042: 2038: 2033: 2031: 2027: 2023: 2019: 2015: 2007: 2003: 1995: 1989:A Pratt truss 1987: 1980: 1978: 1976: 1972: 1968: 1964: 1955: 1948: 1946: 1944: 1940: 1936: 1932: 1928: 1924: 1920: 1916: 1912: 1908: 1904: 1900: 1899:Schell Bridge 1896: 1892: 1888: 1884: 1880: 1876: 1872: 1864: 1859: 1852: 1845: 1843: 1841: 1839: 1835: 1831: 1827: 1823: 1817: 1815: 1811: 1806: 1797: 1790: 1788: 1786: 1782: 1773: 1766: 1764: 1762: 1758: 1754: 1750: 1746: 1738: 1734: 1727: 1721: 1713: 1711: 1708: 1706: 1702: 1698: 1694: 1690: 1682: 1678: 1671: 1669: 1667: 1666: 1660: 1656: 1650: 1645: 1639: 1634: 1629: 1628: 1624: 1615: 1611: 1609: 1605: 1600: 1596: 1592: 1588: 1584: 1580: 1575: 1573: 1569: 1564: 1556: 1552: 1545: 1544:Massachusetts 1541: 1537: 1532: 1525: 1518: 1516: 1512: 1504: 1500: 1492: 1483: 1481: 1472: 1467: 1459: 1457: 1456: 1452: 1448: 1443: 1439: 1432: 1428: 1423: 1415: 1408: 1402: 1396: 1391: 1387: 1381: 1376: 1369: 1364: 1362: 1360: 1356: 1352: 1348: 1344: 1340: 1336: 1335:Jay, New York 1332: 1328: 1324: 1321: 1318: 1317:Massachusetts 1314: 1306: 1301: 1296: 1288: 1286: 1284: 1280: 1275: 1273: 1269: 1265: 1261: 1257: 1249: 1244: 1239: 1231: 1229: 1226: 1218: 1214: 1210: 1205: 1197: 1195: 1190: 1186: 1182: 1178: 1173: 1165: 1163: 1161: 1153: 1151: 1149: 1140: 1135: 1127: 1125: 1123: 1119: 1115: 1111: 1107: 1103: 1095: 1090: 1082: 1075: 1073: 1071: 1067: 1065: 1061: 1057: 1053: 1049: 1045: 1036: 1018:76°49′30.33″W 1007: 1002: 997: 990:Bollman truss 989: 987: 985: 981: 976: 968: 961: 959: 956: 950: 949:Bailey bridge 942: 941:Meurthe River 937: 930: 923: 921: 919: 915: 911: 907: 903: 899: 895: 891: 890:Tharwa Bridge 887: 883: 879: 875: 866: 859: 857: 848: 843: 839: 834: 825: 824: 818: 812: 808: 804: 803:Quebec Bridge 800: 793: 788: 784: 780: 776: 772: 765: 760: 756: 752: 751:Hooghly River 748: 744: 741:A multi-span 737: 732: 730: 728: 727:Quebec Bridge 723: 718: 716: 712: 706: 704: 699: 695: 687: 678: 673: 670: 666: 662: 655: 650: 643: 638: 635: 631: 627: 620: 615: 611: 607: 604:spanning the 603: 596: 591: 588: 581: 576: 572: 568: 561: 556: 552: 546: 541: 538: 537:Humble, Texas 534: 527: 522: 518: 511: 506: 502: 498: 494: 487: 482: 479: 475: 471: 465: 460: 456: 452: 448: 447:through truss 441: 436: 431: 429: 427: 423: 418: 416: 411: 409: 405: 401: 397: 393: 386:Roadbed types 385: 383: 381: 377: 372: 370: 365: 359: 357: 353: 349: 345: 341: 335: 333: 329: 325: 321: 320:United States 314:United States 313: 311: 309: 301:Model bridges 300: 298: 296: 292: 286: 284: 280: 276: 271: 269: 265: 261: 257: 253: 249: 245: 236: 229: 227: 225: 221: 217: 213: 209: 205: 195: 192: 188: 184: 182:Design effort 180: 177: 173: 169: 166: 162: 158: 154: 150: 147: 143: 139: 135: 132: 128: 124: 120: 116: 112: 109: 105: 102: 98: 94: 90: 87: 83: 79: 75: 72: 69: 65: 60: 56: 52: 46: 41: 33: 19: 3884:Arch bridges 3826:toll bridges 3766: 3751: 3742:Through arch 3576:Cable-stayed 3439:. Retrieved 3434: 3430: 3417: 3405:. Retrieved 3400: 3391: 3379:. Retrieved 3370: 3363: 3351:. Retrieved 3345: 3338: 3327:. Retrieved 3316: 3307: 3296:. Retrieved 3276: 3269: 3257:. Retrieved 3248: 3239: 3221: 3210:, retrieved 3194: 3170: 3146: 3139: 3116: 3097: 3089: 3084: 3072:. Retrieved 3068:the original 3058: 3039: 3028:. Retrieved 3014: 3003:. Retrieved 2999:the original 2989: 2977:. Retrieved 2943:. Retrieved 2934: 2925: 2909: 2904: 2892: 2850: 2844: 2831: 2822: 2811:. Retrieved 2807:the original 2797: 2785:. Retrieved 2778:the original 2773: 2761: 2750:. Retrieved 2741: 2732: 2720:. Retrieved 2716:the original 2709: 2700: 2688:. Retrieved 2677: 2668: 2656:. Retrieved 2644: 2632: 2620:. Retrieved 2608: 2596: 2577: 2571: 2561:September 1, 2559:. Retrieved 2553: 2531:. Retrieved 2527:the original 2522: 2513: 2494: 2475:. Retrieved 2432: 2416: 2399: 2397: 2365: 2363: 2351:Bridge L-158 2305:James Warren 2301:Warren truss 2300: 2298: 2294:Warren truss 2284:Warren truss 2278:Warren truss 2265: 2256: 2233:curtain wall 2228: 2226: 2190: 2188: 2156: 2154: 2130: 2125: 2123: 2101: 2099: 2065: 2034: 2013: 2011: 1966: 1962: 1960: 1957:A Post truss 1870: 1868: 1842: 1818: 1805:Pegram truss 1804: 1802: 1791:Pegram truss 1778: 1745:Parker truss 1744: 1742: 1709: 1688: 1686: 1662: 1630: 1620: 1576: 1571: 1567: 1562: 1560: 1514: 1479: 1477: 1441: 1437: 1435: 1323:William Howe 1312: 1310: 1278: 1276: 1255: 1253: 1224: 1222: 1213:Forth Bridge 1193: 1157: 1154:Brunel truss 1147: 1145: 1114:Parker truss 1101: 1099: 1068: 1060:wrought iron 1043: 1041: 974: 972: 955:Bailey truss 954: 952: 924:Bailey truss 873: 871: 855: 846: 798: 779:Hudson River 770: 743:simple truss 742: 719: 707: 691: 550: 501:Aliwal North 497:Orange River 469: 446: 419: 412: 408:half-through 389: 376:Pennsylvania 373: 360: 340:wrought iron 336: 317: 304: 287: 272: 241: 204:truss bridge 203: 201: 38:Truss bridge 3686:Transporter 3666:Submersible 3651:Retractable 3259:10 November 2787:23 November 2722:23 November 2690:23 November 2658:23 November 2622:23 November 2419:kite-shaped 2315:, beam, or 2161:Pratt truss 2126:Smith truss 2120:Smith truss 2112:Smith truss 2014:Pratt truss 1981:Pratt truss 1875:Pratt truss 1647: [ 1636: [ 1591:River Tamar 1572:Pauli truss 1429:K-truss in 1327:Pratt truss 1260:Albert Fink 1148:Brown truss 1142:Brown truss 1134:Brown truss 1128:Brown truss 1118:Pratt truss 1030: / 1015:39°8′5.42″N 984:Connecticut 892:located at 878:Percy Allan 874:Allan truss 860:Allan truss 602:Hart Bridge 246:allows the 224:compression 119:automobiles 111:Pedestrians 71:Beam bridge 18:Steel truss 3969:Categories 3725:Suspension 3641:Drawbridge 3611:Extradosed 3586:Cantilever 3571:Burr Truss 3561:Box girder 3499:Structurae 3441:August 27, 3407:August 29, 3381:August 27, 3353:August 29, 3329:2021-02-04 3298:2020-01-05 3030:2008-10-20 3005:2008-04-28 2813:2008-06-05 2752:2021-03-24 2477:2015-05-29 2457:References 2412:Pittsburgh 2393:Pittsburgh 2196:cantilever 2191:truss arch 2171:Truss arch 2165:Howe truss 2094:Queen post 2084:Queen post 2018:Howe truss 1963:Post truss 1949:Post truss 1937:, and the 1834:Washington 1830:California 1701:Troy, Ohio 1693:Howe truss 1689:Long truss 1672:Long truss 1386:Jay Bridge 1361:, Canada. 1331:Jay Bridge 1320:millwright 1313:Howe truss 1305:Howe truss 1295:Howe truss 1289:Howe truss 1256:Fink truss 1248:Fink truss 1238:Fink truss 1232:Fink truss 882:Howe truss 722:cantilever 661:Mura River 630:rail track 551:Pony truss 474:Erie Canal 470:Deck truss 350:, and the 137:Span range 131:heavy rail 127:light rail 85:Descendant 3859:By length 3698:Multi-way 3212:5 January 3103:US 314262 2897:Panoramio 2533:March 27, 2486:Footnotes 2406:which is 2387:over the 1824:, two in 1753:Saskatoon 1699:north of 1663:See also 1589:over the 1480:king post 1466:King post 1431:Baltimore 1122:true arch 1064:cast iron 1056:Baltimore 943:in France 805:over the 777:over the 749:over the 703:live load 517:collapsed 495:over the 396:box truss 356:Cleveland 258:known as 191:Falsework 115:pipelines 3954:Category 3718:Vlotbrug 3631:Moveable 3437:(3): 5–9 3323:Archived 3292:Archived 3253:Archived 3229:Archived 3203:archived 3124:Archived 3074:June 25, 3047:Archived 3024:Archived 2973:Archived 2939:Archived 2937:. 2018. 2914:Archived 2881:Archived 2746:Archived 2684:Archived 2649:Archived 2613:Archived 2502:Archived 2466:(1976). 2041:Maryland 1973:and the 1599:Cornwall 1593:between 1096:, Canada 910:ironbark 813:, Canada 801:bridge, 783:New York 773:bridge, 745:bridge, 380:Michigan 283:buckling 248:analysis 193:required 145:Material 67:Ancestor 3929:Related 3899:Tallest 3894:Highest 3762:Viaduct 3757:Tubular 3747:Trestle 3713:Pontoon 3656:Rolling 3646:Folding 3636:Bascule 3596:Covered 2979:5 March 2022:eyebars 1438:K-truss 1417:K-truss 1409:K-truss 1270:on the 1162:below. 1146:In the 1120:than a 842:Discuss 757:, India 755:Kolkata 669:Croatia 628:with a 432:Gallery 410:truss. 392:roadbed 318:In the 295:welding 275:infobox 264:bending 260:statics 256:physics 220:tension 171:Movable 107:Carries 77:Related 3737:Timber 3581:Canopy 3536:Bridge 3284:  3158:  3109:  2945:9 July 2857:  2584:  2043:; the 2026:Thomas 1929:, the 1921:, the 1913:, the 1905:, the 1897:, the 1889:, the 1836:, and 1826:Kansas 1659:Munich 1583:Brunel 1579:eyebar 1570:. The 1353:; and 1266:. The 811:Quebec 445:Pratt 230:Design 208:bridge 185:Medium 149:Timber 123:trucks 3752:Truss 3730:types 3676:Table 3671:Swing 3427:(PDF) 3375:(PDF) 3206:(PDF) 3199:(PDF) 2781:(PDF) 2770:(PDF) 2652:(PDF) 2641:(PDF) 2616:(PDF) 2605:(PDF) 2471:(PDF) 2313:strut 2096:truss 2070:near 1822:Idaho 1759:near 1657:near 1651:] 1640:] 1595:Devon 1427:I-895 838:split 571:Osaka 364:steel 279:shear 244:truss 216:truss 206:is a 157:steel 51:truss 3708:Pile 3681:Tilt 3626:Moon 3601:Crib 3556:Beam 3551:Arch 3497:The 3443:2022 3409:2022 3383:2022 3355:2022 3282:ISBN 3261:2018 3214:2013 3156:ISBN 3130:for 3076:2012 2981:2020 2947:2018 2855:ISBN 2789:2010 2724:2010 2692:2010 2660:2010 2624:2010 2582:ISBN 2563:2022 2535:2013 2398:The 2299:The 2227:The 2155:The 2124:The 2106:beam 2100:The 2066:The 1869:The 1861:The 1838:Utah 1803:The 1687:The 1681:HAER 1655:Isar 1597:and 1436:The 1425:The 1311:The 1254:The 1183:, a 1158:See 1100:The 1042:The 973:The 953:The 872:The 694:span 600:The 531:Old 369:pony 153:iron 80:None 3621:Log 3616:Jet 2449:in 2391:in 2357:in 2317:tie 2270:in 2059:in 2047:in 2039:in 1941:in 1933:in 1925:in 1917:in 1909:in 1901:in 1893:in 1885:in 1751:in 1661:. ( 1606:in 1585:'s 1449:in 1357:in 1349:in 1341:in 1333:in 1187:in 1116:or 1046:at 982:in 904:in 809:in 781:in 753:in 705:). 663:in 632:in 608:in 499:at 476:in 354:of 346:of 57:in 3971:: 3433:. 3429:. 3399:. 3321:. 3315:. 3290:. 3247:. 3183:^ 3154:. 3152:92 3022:. 2955:^ 2933:. 2869:^ 2772:. 2744:. 2740:. 2708:. 2676:. 2643:. 2607:. 2543:^ 2521:. 2364:A 2324:. 2292:A 2274:. 2220:A 2202:. 2189:A 2092:A 2012:A 1961:A 1945:. 1840:. 1832:, 1763:. 1743:A 1649:de 1638:de 1561:A 1345:; 1337:; 1303:A 1246:A 1124:. 844:) 797:A 769:A 717:. 667:, 624:A 569:, 270:. 222:, 202:A 163:, 159:, 155:, 151:, 129:, 125:, 121:, 117:, 113:, 99:, 95:, 91:, 49:A 3528:e 3521:t 3514:v 3445:. 3435:4 3385:. 3357:. 3332:. 3301:. 3263:. 3164:. 3078:. 3033:. 3008:. 2983:. 2949:. 2863:. 2816:. 2791:. 2755:. 2726:. 2694:. 2662:. 2626:. 2590:. 2565:. 2537:. 2480:. 1722:. 1546:. 1442:K 34:. 20:)

Index

Steel truss
trestle bridge
A truss bridge operated by Southern Pacific Railroad in Contra Costa County, California converted to pedestrian use and pipeline support
truss
Southern Pacific Railroad
Contra Costa County, California
Beam bridge
Cantilever bridge
truss arch bridge
transporter bridge
lattice bridge
Pedestrians
pipelines
automobiles
trucks
light rail
heavy rail
Timber
iron
steel
reinforced concrete
prestressed concrete
movable bridge
Falsework
bridge
superstructure
truss
tension
compression

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑