Analysis of Seismic Load Bearing Capacity of Short Leg Shear Wall Based on Energy Dissipation

Guest Editor Yuantao Teng (Jilin Normal University, Shiping City, China)

Understanding of the failure mode and the load carrying capacity of short leg shear wall structures under rare earthquake is a problem of the engineer's concern. Based on the energy principle, the seismic performance of high-rise short leg shear wall structure is analyzed by using the model of concrete damage plasticity, The damage of the structure under different seismic peak and the corresponding plastic damage energy can be obtained. The results show that the plastic energy dissipation can reflect the damage degree of the structure. The damage of the structure under the "resonance" excitation is studied. The damage state of the first two modes is obtained, which is the basic failure form of the structure, and the plastic damage energy of the corresponding basic failure mode is obtained, which is the ultimate bearing capacity of the first two modes. Based on the wavelet analysis principle, the input seismic wave is decomposed by wavelet transform. The seismic wave is decomposed into the wavelet band with the structure of the natural vibration frequency as the center. The plastic energy dissipation of the structure under seismic wavelet is obtained. A representation of the carrying capacity by the energy is proposed. The formula can be used to determine the safety performance of short leg shear wall structure under earthquake action.

Journal: International Journal of Simulation: Systems, Science & Technology, IJSSST V17

Published: Jan 7, 2016

DOI: 10.5013/IJSSST.a.17.01.22