THE HEIGHT ADJUSTABLE HINGED STEEL SUPPORT USED DURING THE DISMANTLING OF THE OLD FRAME BRIDGE
The common temporary support is made of circular steel pipe,and its length is often fixed,which is difficult to adapt to the difference of net height in different positions in the actual project.This study provides a hinged steel support used in the demolition of an old frame bridge,which comprises a top support,a bottom support and an I-beam.Its two ends are hinged.The steel wedge is pressed into the gap between the bottom plate and the movable plate by hammering,so as to realize the fine adjustment and compression of the height of the steel support.The articulated steel support has the advantages of convenient assembly and disassembly,adjustable net height within a certain range,wide application range,reusable and low comprehensive cost.Furthermore,based on the engineering case,the parameter calculation process of hinged steel support is given,and the construction method is analyzed,which provides a basis for the engineering application of hinged steel support.
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