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Military Painted Modular Steel Bridges Bailey Truss Bridge With Steel Deck

Categories Modular Steel Bridges
Brand Name: SJ-Bridge
Model Number: CB100 321
Certification: ISO 9001
Place of Origin: China
MOQ: 10 tons
Price: 800 USD/ton
Payment Terms: L/C, T/T
Delivery Time: 30 days
Material: Q345B
Surface: galvanized
Usage: Military
Life: 20 years
Standard: ASTM
Connection: Pins
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    Military Painted Modular Steel Bridges Bailey Truss Bridge With Steel Deck

    Prefabricated Bailey Bridge/ Prefabricated Modular steel truss Bridge


    The basic bridge consists of three main parts. The bridge's strength is provided by the panels on the sides. The panels are 10-foot-long (3.0 m), 5-foot-high (1.5 m), cross-braced rectangles that each weigh 570 pounds (260 kg), and can be lifted by six men. The panel was constructed of welded steel. The top and bottom chord of each panel had interlocking male and female lugs into which engineers could inset panel connecting pins.[6]

    The floor of the bridge consists of a number of 19-foot-wide (5.8 m) transoms that run across the bridge, with 10-foot-long (3.0 m) stringers running between them on the bottom, forming a square.[7] Transoms rest on the lower chord of the panels, and clamps hold them together. Stringers are placed on top of the completed structural frame, and wood planking is placed on top of the stringers to provide a roadbed. Ribands bolt the planking to the stringers. Later in the war, the wooden planking was covered by steel plates, which were more resistant to the damage caused by tank tracks.


    Features


    i. Longitudinal trusses composed by modular steel panels pinned end to end
    ii. Transversal girders spanning between the longitudinal trusses
    iii. Steel lane decked roadway (single lane) on top of the transversal girders
    a. Rapidly modular design: components shall be fully interchangeable with all other of the same type
    b. Single lane roadway (clear width 4.2-4.5 m)
    c. Suitable for critical harsh environmental conditions:i. Temperatures: -20°C to +60°C.
    ii. Wind Speeds: average 45 m/s, gusting to 60 m/s
    d. Design Loads:
    i. Load Class: 40 tons of tandem wheeled load –(HS25-44 Highway Loading)
    ii. Effects of dynamic impact and vehicular eccentricity, wind, etc. (in accordance with Section 3 of the AASHTO or equivalent international standard)
    iii. Single lane bridges: be able to sustain a minimum 100,000 cycles of stress due to AASHTO HS25-44 truck (or equivalent international standard)or lane loading, including the effects of dynamic impact and vehicular eccentricity
    e. Rapidly erectable installation:
    i. Components shall be lifted and carried/lifted/installed by manpower alone, using appropriate tools where necessary
    ii. All connections to be made on site, utilizing pins/bolts easily installed with simple hand tools, (e.g. not use of special tools or on-site welding)
    iii. Modular span construction based on interconnected individual single span(s) with increment of 3 meters
    iv. Roadway with modular steel deck and pedestrian modular steel deck (optional) as cantilever fixed outside the bridge
    v. Cantilever installation method, launching the bridge across the gap without any temporary intermediate supports
    f. Easy packaging for transportation and loading/unloading:
    i. Highly mobile
    ii. Allowing bridge(s) de-launching
    iii. Allowing bridge(s) dismantling


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