Shaking table tests for a subway station structure under spatially non-uniform ground motion

被引：0

作者：

Gu Y. ^{[1
]}

Chen K. ^{[1
]}

Wu H. ^{[1
]}

Zhuo W. ^{[1
]}

Sun Y. ^{[1
]}

机构：

[1] College of Civil Engineering, Fuzhou University, Fuzhou

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2017年 / 36卷 / 17期

关键词：

Non-uniform earthquake wave; Seismic response; Shaking table tests; Silty clay; Subway station;

D O I：

10.13465/j.cnki.jvs.2017.17.037

中图分类号：

学科分类号：

摘要：

The spatially non-uniform ground motion has a larger influence on an underground structure with its length of more than 100 meters. The shaking table test scheme was designed, a scaled subway station model with a silty clay foundation under a non-uniform input earthquake wave excitation was chosen. Rigid soil boxes were made to imitate the silty clay foundation, the test model's material mix proportion and the design of concrete iron reinforcement was analysed. Numerical simulation was conducted to verify the scheme's correctness. According the dynamic similarity theory, the shaking table tests were conducted on the subway station model under a non-uniform seismic input. Through analyzing test data, such as, measured accelerations, soil pressure and components' stress, etc., it was shown that there are differences among dynamic responses of the station model's different cross sections due to seismic wave successively arriving; there are differences among dynamic responses of different components in the same cross section plane; there are differences between the station and soil's dynamic responses; so, the dynamic response laws of the station under non-uniform seismic excitation are obtained. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：255 / 261and266

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