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726:. The placement of the single tower means that the cable-stayed back span of 240 metres (787 feet) provides a secondary channel for shipping. The bridge has a total length of 720 metres (2,362 feet) as it includes girder spans of 88 metres (289 feet) and 80 metres (262 feet). The bridge has nine pairs of cables. The Qiansimen Bridge has the longest stay cable of both bridges, measuring 256.85 metres (843 feet) long. The bridge was shortlisted for an award by the
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699:. The bridge is 858 metres (2,815 feet) long, with asymmetric cable-stayed back span lengths of 190.5 metres (625 feet) on the Yuzhong end and 222.5 metres (730 feet) on the Nan'an end. There are nine pairs of cables connecting each tower to the deck. At the time of its opening, the length of the main span ranks the Donshuimen Bridge among the
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and can also be described as needle shaped. The deck passes through the tower at its widest part, what might be considered the eye of the needle. The towers are constructed of cast-in-place concrete. The towers are 18 meters wide at the bottom, spread to a maximum width of 35 meters at the level of
664:. The bridges use a box-girder cross section where the box girder is trussed in the elevation (or side) view). The box girder is 13 metres (43 feet) tall and 15 metres (49 feet). The pedestrian walkways cantilever from the top of the box girder, making the top deck 24 metres (79 feet) wide.
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design was determined to require the towers to be 170 meters above the deck. The towers would have been taller than surrounding buildings when the 60-meter deck height was added. This was considered visually overpowering. The span requirements were too long for a conventional
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The substructure was built by China
Railway Construction Bridge Engineering Bureau Group Co. Ltd. The superstructure was built by CCCC Second Harbor Engineering Co., Ltd. The bridge opened to rail traffic in April 2014 and opened to road traffic in April 2015.
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The substructure was built by China
Railway Construction Bridge Engineering Bureau Group Co. Ltd. The superstructure was built by China Railway Eighth Civil Engineering Group Corporation (Beijing). The bridge opened to both road and rail traffic in April 2014.
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Designing a long span structure that serves both highway and transit systems brings significant complexity and the judges were impressed with the way these challenges had been overcome in creating a cost effective and visually impactful
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held in July 2008 sought signature long-span bridges which would complement the surrounding landscape. A team of China
Merchants Chongqing Communications Research & Design Institute Co., Ltd. and
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with a truss girder for both bridges. This option, called partially cable-stayed, "draws half of its support from the girders and half from a cable-stayed system that can rely on (shorter towers)."
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The Twin River
Bridges have consistent design elements and were constructed in the same timeframe (opening in 2014). The bridges have two decks. The lower deck carries two railways carrying
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the upper deck, and narrow to 7 meters at the top. The water level of the rivers varies 39 meters between wet and dry seasons, controlled mainly by discharges from the
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would not allow a second tower. The plan called for a double deck design with four vehicular lanes and pedestrian walkways on the top and two rail tracks beneath.
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which is 570 kilometers away. At low water levels, the deck is approximately 60 meters above the water and the tower top is 100 meters above the deck.
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By the time design of the Twin River
Bridges began in 2008, it had been determined that the bridges could not be identical. Crossing of the
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on the south side of the
Yuzhong peninsula would require a longer main span and allow for two tower in the water. A deep
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design would have required anchorages that interfered with the foundations of buildings along the sides of the rivers.
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for planned connection has been preserved since then. The plan for the crossings has always included
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Planning for the Twin River
Bridges dates to 1947, when the alignment of the connection appeared in
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Stay cables are in a single plane. Cables connect in the center of the top deck of the box girder.
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Chongqing City
Construction Investment Corporation and Chongqing Rail Transit Corporation
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653:. The upper deck carries four lanes for motor vehicles and two pedestrian walkways.
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with a cable-stayed main span that is 445 metres (1,460 feet) long, connecting the
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China
Merchants Chongqing Communications Research & Design Institute Co., Ltd.
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with a cable-stayed main span that is 312 metres (1,024 feet), connecting the
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The design team considered and ruled out several bridge types. A conventional
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where the heart of
Chongqing's commercial & financial district
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The Qiansimen Bridge (sometimes Qianximen Bridge) crosses the
849:"Twin River Bridges: Qianximen Jialing River Bridge"
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907:"Designing for China's Bridge Capital"
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911:Institution of Structural Engineers
853:Institution of Structural Engineers
832:American Society of Civil Engineers
728:Institution of Structural Engineers
687:The Dongshuimen Bridge crosses the
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701:longest one hundred in the world.
822:(March 2016). "Split Decision".
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938:Cable-stayed bridges in China
633:The selected design combined
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958:Road-rail bridges in China
887:TY Lin International Group
454:312 m (1,024 ft)
446:720 m (2,362 ft)
285:445 m (1,460 ft)
277:858 m (2,815 ft)
27:Bridge in Chongqing, China
943:Bridges completed in 2014
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95:Yuzhong peninsula, &
548:and a tunnel across the
381:29.568209°N 106.575610°E
212:29.560806°N 106.587247°E
63:29.560766°N 106.587403°E
608:T. Y. Lin International
137:T. Y. Lin International
763:Engineering portal
651:Chongqing Rail Transit
963:Double-decker bridges
953:Road bridges in China
386:29.568209; 106.575610
217:29.560806; 106.587247
68:29.560766; 106.587403
948:Bridges in Chongqing
883:"Twin River Bridges"
751:Transport portal
635:cable-stayed bridges
546:cable-stayed bridges
544:. Consisting of two
662:cable-stayed design
619:cable-stayed bridge
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148:(US$ 208.2 million)
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683:Dongshuimen Bridge
604:design competition
566:planning documents
534:Twin River Bridges
507:Dōngshuǐmén dàqiáo
490:Dongshuimen Bridge
170:Dongshuimen Bridge
34:Twin River Bridges
859:on April 13, 2016
824:Civil Engineering
724:Yuzhong Districts
628:suspension bridge
550:Yuzhong peninsula
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16:(Redirected from
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914:. Retrieved
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451:Longest span
443:Total length
415:Combination
282:Longest span
274:Total length
246:Combination
384: /
372:106°34′32″E
359:Coordinates
215: /
203:106°35′14″E
190:Coordinates
66: /
54:106°35′15″E
41:Coordinates
932:Categories
892:2022-07-13
870:structure.
781:References
510:) and the
369:29°34′06″N
200:29°33′39″N
51:29°33′39″N
863:March 26,
610:, led by
538:Chongqing
107:Chongqing
916:April 2,
834:: 58–63.
738:See also
722:and the
720:Jiangbei
560:Planning
478:Location
462:of spans
438:Concrete
427:Material
322:Location
293:of spans
269:Concrete
258:Material
153:Location
130:Designer
693:Yuzhong
641:Bridges
590:in the
584:Yangtze
574:transit
516:Chinese
494:Chinese
397:Crosses
309:History
228:Crosses
125:History
91:Yangtze
87:Crosses
79:Carries
658:girder
647:Line 6
598:Design
526::
524:pinyin
518::
504::
502:pinyin
496::
417:girder
412:Design
332:Bridge
314:Opened
248:girder
243:Design
163:Bridge
103:Locale
830:(3).
542:China
520:千厮门大桥
498:东水门大桥
430:Steel
419:and
343:千厮门大桥
261:Steel
250:and
174:东水门大桥
117:Owner
111:China
918:2016
865:2016
695:and
626:. A
577:rail
488:The
135:and
649:of
460:No.
291:No.
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789:^
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602:A
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514:(
492:(
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304:2
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20:)
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