ANALYSIS OF HORIZONTAL LAYOUT PLAN FOR STEEL BRIDGE TOP PUSH CONSTRUCTION WALKING MACHINE
Taking a bridge project spanning a certain expressway as an example,based on numerical simu-lation,a finite element model of the top push of a diagonal steel box girder bridge was established.The influence of the number of asynchronous walking machines in the transverse direction of the bridge on the internal forces and structural deflection changes of each component of the main beam was studied,and a safer and more reasonable plan was obtained.The research conclusion is summarized as follows:increasing the number of lateral bridges on the walking machine can reduce the peak stress of each component of the main beam,improve the structural stress state,and have the greatest improvement effect on the web and top plate at the support position,while the least im-provement effect on the stiffeners.Through the verification of this project,we hope to provide reference for similar projects.
steel bridgetop pushing constructionwalking machinefinite element analysis
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