Analysis On Seismic Response About CFST Frame-shear Wall

The concrete filled steel tubular (CFST) is considered as a composite material and the co-work of steel and concrete is reliable. Depend on composite indexes design method, dynamic behavior for frame-shear wall structure were studied as follows:1. The reinforced concrete (RC) column and CFST column of frame-shear wall are used as two kinds of projects and Responsible formulations were used to describe the frame-shear wall structure' nonlinear dynamic actions while appropriate method was chosen to solve these problems on the base of forgone researches.2.The finite element models of the structures were formed through reasonable simplification and modal shapes were studied by using the program ofANSYS.3. The frame-shear wall structure' responses to uniform excitation of earthquake were discussed. The geometric and material nonlinear beings were considered in the horizontal, vertical and three dimensions situations.4. An RC corresponding to CFST column frame-shear wall were introduced whose responses to uniform excitations with dynamic actions, geometric and material nonlinear being considered. Comparing the calculation results, the earthquake resistant behavior of the CFST structure has been appraised synthetically which may be referenced for structure design.5.Though infinite element analysis structure and in a general behavior aspect, there were unique advantages in seismic behaviors such as higher load bearing, deformation behavior, dissipated hysteric energy and so on.