| With beam transformation layer box with cylinder shear wall structure is a complex structure, is widely used in high-rise buildings in our country. Due to the complexity of working mechanism, design is very difficult, often appear in the design of many index exception. Because of the obvious changing of vertical rigidity, under frequent earthquake, Floor shear mutations. Under severe earthquake, easy to form plastic hinge, appear weak layer, go against earthquake.This article selects a cylinder with beam transformation layer box shear wall structure, the seismic response analysis, aiming to grasp the structure of the seismic performance, and gives Suggestions for practical seismic design. The main research work is as follows:1. According to the basic theory of structural dynamic analysis, with software SAP2000and SATWE, cylinder with beam transformation layer shear wall structure modal analysis, the calculation of the structure of the natural vibration period, frequency and vibration mode, in order to master the basic techniques of structure dynamic performance.2. Under frequent earthquake, through CQC, conversion The change of transformation layer height and stiffness ratio to effect on the structure period, displacement, the interlayer displacement Angle, floor shear.3. Through The linear and nonlinear time history analysis, discussed this complex structure, under the effect of selected three kinds of seismic waves, the structure of the top floor displacement, conversion column axial force and the variation of transfer beam bending moment and shear force when features, find out the internal force and displacement variation characteristics of the structure and component.Through the dynamic response of a structure under seismic action, and find out the weak parts of the structure, strengthen the measures and Suggestions, is advantageous for the design reference for similar engineering calculation in the future. |
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