Shaking table test of a multi-story subway station under pulse-like ground motions

• Published in: Soil dynamics and earthquake engineering (1984) Vol. 82; pp. 111 - 122
• Main Authors: Chen, Zhiyi, Chen, Wei, Li, Yueyang, Yuan, Yong
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.03.2016
• Subjects: Columnar structure; Deformation; Dynamic responses; Dynamics; Ground motion; Multi-story subway station; Pulse-like ground motion; Shake table tests; Shaking table test; Soil (material); Subway stations; Walls; Shaking table test; Pulse-like ground motion; Dynamic responses; Multi-story subway station
• ISSN: 0267-7261; 1879-341X
• DOI: 10.1016/j.soildyn.2015.12.002

A series of shaking table tests were conducted to investigate the effect of pulse-like ground motion on a multi-story subway station. Dynamic response data, including internal forces, column drift, and settlement and deformation of the soil were obtained and analyzed. Results show that the pulse-like ground motion increases dynamic responses of the subway station and surrounding soils mainly owing to its inherent rich low-frequency component and high energy. In terms of the structure, central columns, especially central columns on a floor with large story height, are vulnerable components of a multi-story subway station. Both the dynamic earth pressure and the deformation mode of the side wall were analyzed. •Shaking table tests were conducted on a four-story subway structure.•Effects of pulse-like motions on seismic responses of underground structures were discussed.•Rich low-frequency components of pulse-like motions result in severe responses.•Lateral displacements of the side wall manifest as racking deformation.•Central columns are vulnerable structures subjected to pulse-like ground motion.