Construction method of total-prefabricated steel-concrete composite structure box girder
A combined structure and construction method technology, applied in the direction of erecting/assembling bridges, bridges, bridge construction, etc., can solve the problems of large overall size, poor overall mechanical performance, and heavy welding workload of assembled steel-concrete composite structure box girders , to achieve the effects of shortening the on-site construction period, improving construction accuracy, and reducing the amount of welding
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[0020] The construction method of the fully assembled steel-concrete composite structure box girder of the present invention is specifically as follows:
[0021] The first step, prefabricated roof:
[0022] During construction, first spread the first corrugated steel plate 1.1 on the flat ground (see figure 1 a) Weld the upwardly extending shear connector 1.3 on the crest surface, and fill the trough with a steel template or an air bag consistent with the shape of the trough as the inner membrane 1.5 (see figure 1 b), and then bind the steel skeleton 1.6 of the reinforced concrete slab 1.2 on the top of the first corrugated steel plate 1.1 according to the specification requirements (see figure 1 c), final pouring of concrete (see figure 1 d), forming a composite bridge deck.
[0023] The second step, prefabricated base plate:
[0024] During construction, first reserve high-strength bolt holes at the corresponding positions of the straight steel plate 2.1 and the second c...
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