| Compared with traditional steel structure,steel truss has the characteristics of light weight,small area and so on,so in the design of large space steel structure,it is widely used.In this paper,it is based on a new fifteen story steel truss house,the SAP2000 software is used to model and analyze five different structural models,and the corresponding conclusions are obtained from the analysis results,the specific steps are as follows:By extracting the corresponding modeling parameters,five different structural analysis models are established by using the analysis software SAP2000 on the finite element.The five models are based on the traditional steel frame structure,which is used to replace the traditional H steel beam in different ways by using the parallel chord steel truss beam.By means of finite element with the analysis software SAP2000,the modal analysis of the five models is carried out,and the corresponding results of the five models are obtained.Through comparative analysis of the calculation results,the rationality of the model and the characteristics of the seismic performance of each model are verified.I continue to do the model response spectrum analysis with the SP2000 software.In response spectrum analysis,the results are compared with the results of five models,such as floor displacement,inter layer displacement and inter story drift.Through the comparative analysis,the layout of the steel truss beam can improve the seismic performance of the structure,but the layout can be considered without the whole plane layout.I am using the SAP2000 finite element analysis software,the dynamic time history analysis of the five models is carried out.Through the comparative analysis of the model time history analysis results,the reliability of the response spectrum analysis is verified,which provides a reference for the application of the new steel truss structure in the practical engineering.I also put forward the need to further complete the problem. |
