Seismic Numerical Analysis And Reinforce On Concrete Framework Structure Joints

In this paper,the experiment of different fiber composite materials has been carried on,which analyze the advantages and disadvantages of materials as well,highlight the importance and application of HFRP(hybrid fiber reinforced polymer)in practical engineering.Based on the former research results of seismic performance of FRP reinforcement nodes by numerous scholars,the experimental group took plane frame beam-column joints as example to make the model of pseudo static test,then the node form of reinforcement and seismic performance evaluation system has been the comparatively analyzed from the aspects of ultimate bearing capacity,ultimate displacement and ductility.Finally a set of feasible node reinforcement scheme had been put forward.There are two main types of elastic-plastic analysis method:dynamic elastic-plastic time history analysis method and the static nonlinear modal analysis method.This paper gathered and analyzed the application and development of dynamic elastic-plastic time history analysis method.According to the basic principle of seismic strengthening of the building and the result of elastic analysis,the strengthening design of old hotel has been performed,after that the method of elastic-plastic time history analysis was carried out to evaluate the structure seismic performance of reinforced construction.By analyzing the calculation results show that:components,performance,interlayer displacement angle of the structure meet specification requirements after the HFRP strengthening.After the reinforcement,reinforcing reform could satisfy the standard of the seismic performance of target which proposed before structure reform.