Installation and closure construction method for steel sliding roadway arch on top surface of steel trussed beam bridge
A technology for steel truss girder bridges and roofs, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of difficult construction, high specification requirements, and difficult construction of construction platforms, and achieve the effect of great promotion value.
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[0014] The present invention includes the following process steps:
[0015] (1) After the steel truss girder is closed, adjust the centerline position of the steel girder and the elevation of each support. At the same time, the arch girder is pre-assembled, and then transported to the wharf with a flatbed truck, hoisted on the barge by the wharf crane, and transported by water to erection specific area.
[0016] (2) Two 80t girder cranes simultaneously lift the lower boom from the barge and install it on the mid-span node of the steel truss girder. The vertical and horizontal Bailey beams will be installed immediately, and the diagonal pulling equipment will be installed.
[0017] (3) Lift the upper section of the boom and connect it with the lower section of the boom through punching nails and high bolts. Similarly, install the Bailey beam connection system and the oblique pulling equipment on the upper section of the boom, and install the arch rib and arch flat connection after ...
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