Seismic Response Analysis Of Multi-support And Multi-Dimensional Inputted Long Span Cable-Concrete Structure

With the development of economy and society, people demand more and morespace on building so that large span structure has been developed rapidly and appliedwidely. The traditional reinforced concrete beam and steel structure have theircorresponding limitations. With the deepening of the study, some people put forward anew structure "the cable-concrete beam system" with lower height of reinforced concretebeam and cable under the cable-concrete structure, in order to achieve larger span andmeet the growing functional requirements. This structure is used in public buildings, civilconstruction and industrial construction, which saves space and increases the load bearingability, and it has broad application prospects.This paper research content is seismic response analysis of multi-support and multi-dimensional inputted long span cable-concrete structure. Through the comparison andanalysis, it was found that the features of seismic response analysis of multi-support andmulti-dimensional inputted long span cable-concrete structure.The realization of the analysis model and method used for responses analysis ofstructure under multi-support and multi-dimensional excitation. Based on thesummarization of previous research achievements on the basis, it is given that theimplementation methods of multi-support and multi-dimensional earth quake excitationusing seismic displacement time history input function.In north and south long50meters,45meters wide from east to west in the singlecross cable-concrete structure model as an example. In the dynamic time history analysis,it contrast the displacement and internal force and stress of the seismic responses ofstructure between uniform excitation and multi-dimensional and between multi-dimensional uniform excitation and multi-dimensional and multi-support earth quakeexcitation. The features of structure under multi-dimensional and multi-support earthquake excitation are obtained. The results show that for seismic design of the shear wallstructure with large space at the bottom using the multi-dimensional and multi-supportseismic design method is quite demand for the purpose of ensure the structural economyand safety.In view of for the analysis of multi-dimensional and multi-support excitation, theresults have a huge amount of data. Can let the single point response spectrum seismicresponse results multiplied by a certain seismic effect influence coefficient. Therefore, ithas considered the design of multi-dimensional and multi-support analysis influence.