Abstract
This paper uses SAP2000 finite element software to perform nonlinear time history analysis of nine structural systems, and compares the period, total floor displacement, base shear force, vertex displacement, and top acceleration of the structure under the action of an 8-degree rare earthquake. The research results show that seismic isolation and damping technology can effectively reduce the impact of earthquakes on structures.
Highlights
Through the SAP2000 finite element software, the Xishuangbanna Dai light steel-wood-plastic structure is established for seismic resistance, 5 types of base isolation and 3 types of damping structural systems [5], that is, a total of 9 finite element calculation models
The above two figures show that the period of the seismic isolation structure is greatly extended, and the natural vibration period of the building is far from the characteristic period of the site, which greatly reduces the possibility of structure resonance
3.2 Comparison of total floor displace-ment. It can be seen from the above chart that the total floor displacement value generated by the original structure is the largest under the EL-Centro wave, Lanzhou wave and Shanghai artificial wave
Summary
This paper adopts two-story light steel-wood plastic structure [1], [2] building and selects and uses the following three seismic waves according to the location of the building: EL-Centro wave, Lanzhou wave, and Shanghai artificial wave [3]. Structure, which greatly increases the safety of the structure, which allows the structure to achieve The change from "resistance" to "control". Through the SAP2000 finite element software, the Xishuangbanna Dai light steel-wood-plastic structure is established for seismic resistance, 5 types of base isolation and 3 types of damping structural systems [5], that is, a total of 9 finite element calculation models
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