Manufacture method for prefabricating support-free system bridge sections
A manufacturing method and segmental technology, applied to bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of difficult production of construction workers, errors in formwork installation, long construction period, etc., to achieve green construction technology, ensure quality, reduce Effect of Shrinkage and Creep Influence
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[0041] The present invention mainly includes two parts: segmental prefabrication process and suspension assembly process. The girder and pier segments of the unsupported bridge are prefabricated by segmental prefabrication technology, and the girder on site is suspended and assembled by a bridge erecting machine. The control of structural deformation of unsupported bridges is much more complicated than that of ordinary continuous rigid frame bridges. Because of this, the accuracy of the on-site hoisting construction process of bridges without bearing systems becomes more important. In the suspension assembly process, the present invention proposes to first assemble the prefabricated sections of the bridge pier, and then use the bridge pier as the support of the bridge erecting machine to suspend and assemble the beam part by using the bridge erecting machine: that is, use the bridge erecting machine to place the prefabricated sections of the beam The sections are suspended in...
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