Nonlinear Analysis Of RC Frame-shear Wall Structures Based On Multi-layer Shell Model

China is one of the worst earthquake disaster countries in the world. It has the following features: a broad and decentralized earthquake region, high strength, shallow, frequently occuring and so on. The problem that earthquake workers continue to solve is how to resist earthquakes, reduce the loss caused by the earthquake. At present, with continuous development of China's urban construction, there has been an increasing number of complex and high-rise building structures, which are beyond the current specification requirements. For those overrun structure, the structure need to be analyzed in the method of non-linear dynamic time-history. And we must predict the response of structures under earthquake effect and force the situation. To a large extent, we can foresee the pre-earthquake disaster of the structure which will suffer from damage, and adjust the programs or reinforcement methods of structures, to reduce the loss of lives and property.The method of elastic-plastic time-history analysis has been developed for half a century. Because of the complexity of elastic-plastic structural materials and computational tools, the nonlinear time history analysis methods are still in the research stage of the project,and still at a relatively low level.The paper uses ABAQUS software to analyze the plastic of the shear wall and the frame-shear wall structure, some example analysis and research have been done:1.Research of constitutionThe author analyzed and studied the existing constitution models of concrete and steel constitution,selected concrete stress-strain curve of concrete damaged plasticity. The author chose the kinematic hardening model with the Bauschinger effect, after analyzing Hysteretic behavior of steel and taking into account the simplicity of calculation.2.Research of multi-layer shell modelAt the same time, the author also analyzed multi-layer shell Model by composite material mechanical principles.Base on the multi-layer shell element,the shear wall can set different material,thickness and integral points.3.Research of shear wallThe author setted up shear wall by the multi-layer shell element theory. The result calculated by ABAQUS software is similar to real experiment.4.the modeling of frame-shear wall structureframe-shear wall structure is analyzed in elastic-plastic dynamic time-history analysis method, in the seismic waves of different peak, compared with the experiment.