Seismic Performance Upgrading for Underground Structures by Introducing Shear Panel Dampers

Advances in Structural Engineering - Tập 17 Số 9 - Trang 1343-1357 - 2014
Zhiyi Chen1, Wei Chen1, Guoqiang Bian2
1Department of Geotechnical Engineering, Tongji University, Shanghai, China
2Shanghai Jianke Architectural Design Institute Co. Ltd., Shanghai, China

Tóm tắt

A new method of upgrading seismic performance for underground structures is proposed in this paper. Both single-story and double-story underground subway stations are studied. Using the famous single-story Daikai Station model, by which the reliability of the numerical model is verified, seismic efficiency of Shear Panel Damper (SPD) in underground structures is proven. Then, in order to design appropriate and efficient SPDs for underground structures, strength ratio, one of the design parameters, is employed to investigate the seismic performance of structures. The recommended optimum range of strength ratio is given. Afterwards, typical double-story three-span stations with different SPDs layout forms are analyzed to figure out the optimal placement of SPDs. And some interesting conclusions are obtained, which may provide a convenient way to design SPDs in multi-story underground structures.

Từ khóa


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