Irregular Plane Frame Structure Seismic Performance Research

In the process of the advancement of national economic construction, people’s material and cultural pursuit of constantly improve, also constantly improve the aesthetic requirement, people are no longer satisfied with the role of building such, more peculiar pursuit of new building construction, the application of the irregular building more and more widely, our country belongs to the most earthquake-prone countries, therefore is very important for building structure seismic performance research, based on a planar irregular concrete frame shear wall high-rise building structure finite element analysis,the dynamic characteristics of the irregular high-rise buildings and the earthquake force cheap specific research and analysis.In this paper the process of narrative, first elaborated under the action of historical earthquake, some of the damage to buildings, this paper expounds the development of irregular buildings, as well as the domestic and foreign present situation and the research achievements on the study of frame shear structure, and commonly used in engineering are introduced in the design of the seismic analysis theory, the basic theory of modal analysis, response spectrum analysis, the basic theory, basic theory of linear time history analysis.Using the finite element analysis software SAP2000 to analyze the plane irregular frame shear structure, in the analysis and research of the engineering example, mainly through the following several aspects to discuss:(1) The first modeling through finite element analysis software SAP2000, the two contrast model was established, the first model is in the arrangement of shear walls and across all round, the second model is only around the building layout of shear wall, the two kinds of model for modal analysis, get the irregular structures of three kinds of natural vibration modes, then the translation-torsion characteristics of two kinds of model for structural analysis.(2) SAP2000 to model a, model 2 model, the response spectrum analysis in the process of analysis to establish the floor displacement and displacement between layers and interlayer displacement Angle and other parameters, and the time history analysis.(3) Finally in the process of Pushover analysis, analysis of the performance points ofthe irregular frame shear wall structure and the distribution of plastic hinge.