Nonlinear earthquake response analysis and energy calculation for seismic slit shear wall structures

来源 :Earthquake Engineering and Engineering Vibration | 被引量 : 0次 | 上传用户:sweetacid
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Based on the concept of structural passive control,a new type of slit shear wall,with improved seismicperformance when compared to an ordinary solid shear wall,was proposed by the authors in 1996.The idea has been verifiedby a series of pseudo-static and dynamic tests.In this paper a macro numerical model is developed for the wall element and theenergy dissipation device.Then,nonlinear time history analysis is carried out for a 10-story slit shear wall model tested on ashaking table.Furthermore,the seismic input energy and the individual energy dissipated by the components are calculated by amethod based on Newmark-β assumptions for this shear wall model,and the advantages of this shear wall are furtherdemonstrated by the calculation results from the viewpoint of energy.Finally,according to the seismic damage criterion on thebasis of plastic accumulative energy and maximum response,the optimal analysis is carried out to select design parameters forthe energy dissipation device. Based on the concept of structural passive control, a new type of slit shear wall, with improved seismic performance when compared to an ordinary solid shear wall, was proposed by the authors in 1996. Idea has been verified by a series of pseudo-static and dynamic tests.In this paper a macro numerical model is developed for the wall element and theenergy dissipation device.Then, nonlinear time history analysis is carried out for a 10-story slit shear wall model tested on ashaking table. Morerther, the seismic input energy and the individual energy dissipated by the components are calculated by a method based on Newmark-β assumptions for this shear wall model, and the advantages of this shear wall are further demonstrated by the calculation results from the viewpoint of energy .Finally, according to the seismic damage criterion on thebasis of plastic accumulative energy and maximum response, the optimal analysis is carried out to select design parameters forthe energy dissipation device.
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