450:—These are the main structural components of the bridge trusses. They are welded items comprising top and bottom chords interconnected by vertical and diagonal bracing. At the end of each panel, chords terminate in male lugs or eyes and at the other end in female lugs or eyes. This allows panels to be pinned together to form the bridge span. There are two different panels; a Super Panel and a High Shear Super Panel. The High Shear Super Panel is used at each end of the bridge span depending upon the loading criteria.
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486:—The slope or profile of the ramps can be adjusted to allow for the passage of a range of civilian and military traffic. The length of a standard ramp at each end of the bridge is 13.5m. The ramps are bolted to the grillages and use standard deck units supported on special transoms. These transoms can be positioned at a variety of heights depending upon the set adopted with a special ramp post. The interface between the ramp and ground is a special toe ramp unit (1.5m)
480:—On greenfield sites and when being used as an over bridge, ground beams are available that form an assembly which transmits all dead and live forces from the bridge into the ground. For a 40m (MLC80T/110W) bridge the ground bearing pressure is 200 kN/m2. The grillages are located on the top of the ground beams and accommodate the bridge bearings as well as the head of the ramp transom.
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Beyond the need for the re-opening of communications, Logistic
Support Bridge-based equipment (Compact 200) can be used as a rescue bridge for relief in natural disaster situations or as a civilian bridge for semi-permanent bridging to open up communications in some of the most remote regions of the
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pontoon units, Landing Piers consisting of 16 pontoon units, and
Intermediate Piers which consist of 8 pontoons each. Hand winches are mounted on steel trays which are bolted to the pontoons. The anchors are connected to the hand winches and pontoons via steel chain and polypropylene ropes. Special
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The
Logistic Support Bridge is a non-assault bridge for the movement of supplies and the re-opening of communications. It is a low-cost system that can be used widely throughout the support area, as well as for a range of defined applications. All types of vehicles including civilian vehicles with
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and general support bridges and to provide a long span floating bridge capability. The bridge is a variant of the Mabey
Compact 200 bridge, with alterations made to suit the military user as well as a ramp system to provide ground clearance to civilian and military vehicles.
468:—Unlike wooden Bailey decks, the steel LSB decks are 1.05m x 3.05m and are manufactured using robotic welding technology. The decks are manufactured to have a long fatigue life and with durbar/checkered plate finish. The decks withstand both wheeled and tracked vehicles.
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If the bridge is relatively short in terms of the number of spans, it may be possible to launch the complete bridge from one bank. On a long span bridge, launching intermediate spans and floating them into position on intermediate piers is more practical.
462:—These are fabricated from universal beams and form the cross girders of the bridge, spanning between the panels and carrying the bridge deck. The transom is designed for the appropriate loading criteria and for LSB is designed to accommodate MLC80T/110W.
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The bridge can be constructed by the cantilever launch method without the need for any temporary intermediate support. This is achieved by erecting a temporary launching nose at the front of the bridge and pushing the bridge over the gap on rollers.
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material in use throughout the world, LSB is manufactured with chosen modern steel grades, with a strong steel deck system. With strong deep transoms, there are only two per bay instead of the four previously needed on Bailey bridges.
202:) to supply bridging to satisfy their specific requirements for a logistic or line of communication bridging. The LSB went into service with the British Army on 21 December 2001. The system is proved and approved by a number of
456:—These are constructed in the same way as the chords of the bridge panels and are bolted to the panels to increase the bending capacity of the bridge. For the LSB a heavy chord reinforcement is used.
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After pushing the bridge over the gap, the launching nose is dismantled and the bridge is jacked down onto its bearings. The launching nose is largely constructed from standard bridge components.
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The LSB combines standard off the shelf equipment with a range of purpose designed special equipment to meet the expectations of modern military loads and traffic expectations.
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on Task Force 3-09 constructed a Mabey
Logistic Support Bridge over a pre-existing bridge after a vehicle borne suicide bomb detonated on the bridge close to
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The
Swedish Transport Administration also uses the bridge where it is used during road renovation and construction or as a stop gap after road damage.
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Armies from a number of countries around the world own equipment or have trained and deployed on the system, notably during the crisis in the
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98m bridge built by the
Romanian Engineer Battalion. The bridge was completed on 6 July 1996. Construction time 6 days Loading MLC60.
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474:—A variety of bracing members are used to connect panels to form the bridge trusses and to brace adjacent transoms to the bridge.
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units to upgrade routes for heavier traffic, replace civilian bridges damaged by enemy action or floods etc., replace
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There are a number of floating versions of the Mabey LSB in use across Iraq: Floating Piers which consist of steel
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and manufactured large bridge girders; in May 2019, the Group sold Mabey Bridge to the US-based Acrow Bridge).
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span junction decks allow for the rotation of the floating spans as the spans deflect under live load.
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Bridge built by US and
Hungarian Engineers. Completed 22 March 1996. Construction time 4 days, MLC60.
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Multi-span equipment enables the bridge to be built to any length on fixed or floating supports
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The bridge has been built in many locations across Iraq and
Afghanistan by the U.S.
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Intermediate span being floated into position on intermediate piers
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Built on a greenfield site using grillages, ground beams and ramps
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The bridge takes military load class 80 Tracked, 110 Wheeled
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The Mabey
Logistic Support Bridge originated from the
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The bridge is normally built using an atc244 22
356:. During the Canadian OPERATION ATHENA, members of
431:Landing Spans launched from the home and far banks
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616:"Varselgult och grönt samarbete i Örsundsbro"
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643:Animated build of a Mabey Compact 200 Bridge
84:A Mabey Logistic Support Bridge, Tikrit,
66:Learn how and when to remove this message
29:This article includes a list of general
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127:US Army Mabey Logistic Support Bridge
354:United States Army Corps of Engineers
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346:Naval Mobile Construction Battalions
402:using a bucket with a lifting eye.
35:it lacks sufficient corresponding
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423:Anchor systems with hand winches
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183:at its Mabey Bridge factory in
194:The name LSB was given by the
179:The bridge is manufactured by
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378:The bridge can span up to 61m
93:Mabey Logistic Support Bridge
381:LSB has a lane width of 4.2m
663:Military bridging equipment
95:(in the United States, the
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478:Grillages and Ground Beams
590:"Acrow buys Mabey Bridge"
565:"Logistic Support Bridge"
531:Callender-Hamilton bridge
213:. These armies include
146:concept. Compared with
50:more precise citations.
594:The Construction Index
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439:Completed float bridge
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106:, designed for use by
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638:www.mabeybridge.co.uk
563:Mabey & Johnson.
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541:Medium Girder Bridge
108:military engineering
97:Mabey-Johnson Bridge
454:Chord reinforcement
400:hydraulic excavator
569:M&J UK website
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407:System description
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139:are accommodated.
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503:Floating variants
362:Kandahar Airfield
137:ground clearances
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104:truss bridge
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574:10 December
536:Mabey Group
319:Switzerland
291:Netherlands
181:Mabey Group
119:Description
48:introducing
652:Categories
547:References
509:Flexifloat
352:) and the
56:April 2009
31:references
394:capacity
331:Venezuela
299:Sri Lanka
215:Argentina
520:See also
460:Transoms
370:Features
323:Tanzania
307:Slovenia
303:Slovakia
283:Malaysia
235:Cambodia
231:Bulgaria
206:forces.
189:Chepstow
472:Bracing
350:Seabees
295:Romania
275:Ireland
271:Hungary
263:Germany
255:Finland
251:Ecuador
247:Denmark
223:Belgium
219:Austria
211:Balkans
155:world.
112:assault
44:improve
600:13 May
448:Panels
327:Turkey
315:Sweden
267:Greece
259:France
239:Canada
227:Brazil
185:Lydney
33:, but
484:Ramps
466:Decks
398:or a
396:crane
358:1 CER
311:Spain
287:Nepal
279:Italy
243:Chile
159:Users
602:2019
576:2009
204:NATO
135:low
129:Iraq
91:The
86:Iraq
392:ton
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