Shaking table test on the seismic response of large-scale subway station in a loess site: A case study

Shaking table tests were conducted on typical models of subway structures subjected to several seismic shaking time histories to study seismic response of subway structures in soft ground as well as to provide data for validation of seismic design methods for underground structure. Three types of tests were presented herein, namely green field test, subway station test, and test for joint structure between subway station and tunnel. The similitude and modeling aspects of the 1g shaking table test are discussed. The seismic response of Shanghai clay in different depths was examined under different input waves to understand the acceleration amplification feature in both green field and in the presence of underground structure. Damage situation was checked on internal sections of both subway station and tunnels by halving the model structure. Structure deformation was investigated in terms of element strain under different earthquake loadings. The findings from this study provides useful pointers for future shaking table tests on underground structures/facilities, and the seismic response characteristic of underground structure derived from the shaking table test could be helpful for validating seismic design method for subway station.

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Data Acquisition Technology of Large Scale Shaking Table Test of Subway Station Structure

Procedia Earth and Planetary Science ◽

10.1016/j.proeps.2012.01.050 ◽

2012 ◽

Vol 5 ◽

pp. 294-299

Author(s):

Jun Huang ◽

Lianjin Tao ◽

Jin Bian

Keyword(s):

Data Acquisition ◽

Large Scale ◽

Shaking Table Test ◽

Shaking Table ◽

Subway Station ◽

Station Structure

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Seismic response characteristics of multi-story subway station through shaking table test

Advances in Structural Engineering ◽

10.1177/1369433221993296 ◽

2021 ◽

pp. 136943322199329

Author(s):

Zhiyi Chen ◽

Pengfei Huang ◽

Wei Chen

Keyword(s):

Seismic Response ◽

Shaking Table Test ◽

Earth Pressure ◽

Frequency Component ◽

Shaking Table ◽

Dynamic Responses ◽

High Frequency Component ◽

Subway Station ◽

Response Characteristics ◽

Dynamic Earth Pressure

A series of shaking table tests were carried out to investigate the seismic response characteristics of a multi-story subway station. Dynamic responses, including accelerations of the soils and the underground structure, layer drift, dynamic earth pressure, and lateral deformation of soils were recorded and analyzed. Several seismic characteristics of multi-story subway station structures are figured out. It is found that in addition to the racking deformation, the rotation vibration is observed for the multi-story subway station subjected to acceleration waves. From the viewpoint of frequency, the low-frequency component and high-frequency component of the acceleration response of the subway station represent the translation and rotation component of the multi-story subway structure, respectively. In addition, the rotation vibration of the deep-depth structure leads to the local squeezing and detachment from the surrounding soils alternately at both top and bottom ends of the sidewalls. This results in the hump-shaped distribution of dynamic earth pressure. The racking deformation of the multi-story subway station has a linear relationship with the dynamic earth pressure at a certain area along the sidewall, where the top of hump-shaped distribution of dynamic earth pressure is.

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Large-scale shaking table test on seismic behaviour of anti-slide pile-reinforced bridge foundation and gravel landslide: a case study

Bulletin of Engineering Geology and the Environment ◽

10.1007/s10064-020-02006-3 ◽

2020 ◽

Author(s):

Chonglei Zhang ◽

Guanlu Jiang ◽

Da Lei ◽

Aamir Asghar ◽

Lijun Su ◽

...

Keyword(s):

Large Scale ◽

Shaking Table Test ◽

Shaking Table ◽

Seismic Behaviour ◽

Bridge Foundation

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Experimental Study on Seismic Response of a Large-Span and Column-Free Subway Station in Composite Strata

Shock and Vibration ◽

10.1155/2019/8412390 ◽

2019 ◽

Vol 2019 ◽

pp. 1-15 ◽

Cited By ~ 2

Author(s):

Tingjin Liu ◽

Siyuan Zheng ◽

Xinwei Tang ◽

Weixing Xu

Keyword(s):

Seismic Response ◽

Shaking Table Test ◽

Boundary Effect ◽

Soft Clay ◽

Lateral Wall ◽

Shaking Table ◽

Subway Station ◽

Model Structure ◽

Soil Pressure ◽

Large Span

In this paper, a shaking table test was conducted to investigate the seismic response of the large-span and column-free subway station in the upper-soft and lower-hard strata. The acceleration of the structure and the soil, the dynamic soil pressure, and the strain response of the subway station were obtained and analyzed. The results demonstrate the reasonable test design as the boundary effect was eliminated. The seismic response of the structure and soil became more severe as the acceleration amplitude of the input motion increased. It is indicated that possible shear damage of the soil and irreversible plastic deformation of the structure might have occurred as the test proceeded. The soft clay had a greater effect on the structure than that of the artificial rock. For the model structure, the tensile strain amplitude in the support region was larger than that in the midspan region. The support regions of the roof slab, lateral wall, and middle slab were the vulnerable components of the model structure during earthquakes.

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