Studies On Dymamic Characteristics And Seismic Response Of Framed Short Shear Wall-special-shaped Columns Structure

Framed short shear wall-special-shaped columns structure was treated as a shear wall structure supported shear wall structure, it combines the frame structure and the wall structure of a variety of advantages, but this structural system of theoretical research in the earthquake is not perfect. Conduct framed short shear wall-special-shaped columns structural system dynamic characteristics and seismic response analysis study, there are important engineering and theoretical value.With the help of finite element software SAP2000, a reinforced concrete framed short shear wall-shaped column structure model was established, then, this paper conducted the modal superposition analysis, modal response spectrum method, elastic time history analysis and nonlinear time history analysis.Firstly, by modal superposition dynamic analysis of framed short shear wall-special-shaped columns structure we could get cycles, modes and other dynamic characteristics.Secondly, response spectrum analysis and plastic time history analysis were carried out to research changed framed short shear wall-outer cylinder shaped column structure stiffness, core tube stiffness and enter a different seismic wave seismic response changes. The results showed that:the framed short shear wall special-shaped columns structure has strong ability to resist earthquake.Finally, plastic time history analysis under rare earthquake was carried out to study changing the structure of the outer cylinder stiffness, core tube stiffness parameters obtained seismic response of each model change, in order to obtain framed short shear wall-shaped column structure under rare earthquake law elastoplastic properties. Then understand the Reasonable collapse failure mechanism framed of short shear wall-special-shaped columns structure, at last, the reference to the proposed seismic concept design was summarized.