Nonlinear simulation analysis on resistant-lateral stiffness and structure torsion effect of asymmetric arrangement R.C. frame-shear structure

作者：Yigang Jia; Guangyu Wu^*; Lin Liu; Zhijun Yuan; Wenlan Zhao

来源：Revista Tecnica de la Facultad de Ingenieria Universidad del Zulia, 2016, 39(5): 365-377.

DOI：10.21311/001.39.5.47

• Asymmetric arrangement
• Lateral stiffness
• Shear structure
• Storey shear redistribution
• Torsion effect

This paper carries out nonlinear finite element analysis of a 3-story single span R.C. frame and a single story R.C. double shear wall shear wall test model by utilizing ANSYS program and verifies the test results. The stress performances of four space models of single story asymmetric arrangement R.C. frame-shear structure are analyzed under the horizontal load to study the effect of different stiffness characteristic value and different initial lateral stiffness eccentricity ratio on the resistant-lateral performance of frame-shear structure. The analysis results prove that the degradation amplitude (rate) of resistant-lateral stiffness of R.C. shear wall is larger (fast) than that of the frame, ratio of the shear shared by frame is significantly increased and the asymmetric arrangement frame-shear structure with close initial resistant-lateral stiffness center and mass center presents larger torsion effect due to the difference between shear wall and frame resistant-lateral stiffness degradation.

• 出版日期2016