Construction technology of prefabricated corrugated steel web pc I-beam to composite box girder bridge
A corrugated steel web and construction technology technology, applied in bridges, bridge materials, bridge construction, etc., can solve the problems of long construction period, immaturity, and high input cost of manpower and material resources, and achieve low input cost, simple structure, and construction. handy effect
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[0069] like figure 1 A construction process of prefabricated corrugated steel web PC I-beam to composite box girder bridge is shown. The composite box girder bridge constructed includes a composite box girder erected on the lower support system of the bridge. The direction is divided into a plurality of composite box girder segments, each of which is formed by connecting two PC I-beams 7 with corrugated steel webs arranged symmetrically. The process includes the following steps:
[0070] Step 1. Prefabrication of PC I-beams with corrugated steel webs: combination Picture 1-1 , the corrugated steel web PC I-beam 7 required for the construction of the composite box girder is prefabricated, and the process is as follows:
[0071] Step 101, construction of prefabricated pedestal: first lay a layer of concrete cushion 5 on the prefabricated site, and construct concrete pedestal 1 on the concrete cushion 5 as a prefabricated pedestal for corrugated steel web PC I-beam 7, see Fig...
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