Seismic response analysis on new parallel cantilever-toggle viscous systems in high-rise building

Xiao-Qiang Chen; Shao-Ming Lin; Yun Zhou; Jun Liufu

doi:10.1117/12.2620244

29 November 2021 Seismic response analysis on new parallel cantilever-toggle viscous systems in high-rise building

Xiao-Qiang Chen, Shao-Ming Lin, Yun Zhou, Jun Liufu

Proceedings Volume 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021); 120801G (2021) https://doi.org/10.1117/12.2620244
Event: 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 2021, Nanchang, China

Abstract

A new type damping system, parallel cantilever-toggle viscous system (P-CTV), is proposed in order to improve seismic energy dissipation efficiency of the viscous dampers in viscous damping outriggers in super high-rise building. The working mechanism and construction characteristics of the system are introduced. ETABS finite element program is used to analyze nonlinear time history response of a typical 276.5m engineering example, and the damping control effect of the P-CTV in super high-rise building under design earthquake is studied. The results show that the deformation of P-CTV system is completely unrelated to the deformation of the floor by adopting the floor beam offset and floor opening, the construction is simple and has little impact on structure quality. The P-CTV has a good damping control effect on super high-rise structure, 12 sets of P-CTV could realize the damping rate of story drift and story shear up to more than 21% under the action of design earthquake. The P-CTV could make the viscous damper have good deformation amplification efficiency, the nominal displacement amplification factor of viscous damper could reach 4.77~6.25, and the damping ratio of the damper could reach 51%.

Citation Download Citation

Xiao-Qiang Chen, Shao-Ming Lin, Yun Zhou, and Jun Liufu "Seismic response analysis on new parallel cantilever-toggle viscous systems in high-rise building", Proc. SPIE 12080, 4th International Symposium on Power Electronics and Control Engineering (ISPECE 2021), 120801G (29 November 2021); https://doi.org/10.1117/12.2620244

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