ANALYSIS OF INFLUENCE OF PRECAST TIE BEAM STIFFNESS ON SEISMIC PERFORMANCE OF DOUBLE COLUMN PIER
In order to explore the influence of the stiffness of prefabricated tie beams on the seismic performance of double-column pier,a substructure model of the prefabricated tie beams of a bridge belt was established by using ABAQUS software,and nine finite element models were established by changing the material of the tie beams and the internal dimension of the section of the tie beams.The pseudo-static analysis was carried out by means of displacement loading,and it was found that the stiffness changes had little influence on the seismic performance of the structure.When the size change reaches 203%,the seismic performance of the structure is still not significant,indicating that the structure is not sensitive to the stiffness change of prefabricated tie beams.The results show that there is a wide feasible range in the design of the material and size of the prefabricated tie beam,and the cost,construction requirements and construction methods should be considered in the comprehensive selection.
prefabricated tie beamdouble-column pieranti-seismic propertyfinite element analysis
万方数据
维普
