Calculation of Permanent Seismic Displacement of Frame Prestressed Bolt Support Structure
The seismic permanent displacement is a key factor to evaluate the seismic performance and safety performance of the structure,especially for the complex flexible support structure such as the frame prestressed bolt support structure,and its value depends on the material properties of the structure,the form and the strength of the seismic action.Therefore,studying the permanent displacement of the support structure under the action of earth-quake has an important influence on improving the seismic capability of the support structure.This paper studies the calculation method of the seismic permanent displacement of the prestressed anchor structure of the frame,ex-plores the deformation rule and seismic capability of the structure under the action of earthquake,and puts forward the feasibility calculation method of the permanent displacement.This paper mainly uses the pseudo-static method,limit analysis upper limit method and other theoretical calculation methods to derive the seismic yield acceleration of the frame prestressed bolt support structure,and calculates the seismic permanent displacement of the structure according to the parameter.The theoretical formula is calculated by MATLAB programming software,and the re-sults are compared with the numerical simulation analysis to verify the effectiveness and correctness of the formula,which can provide a certain basis for the support design.
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维普
