Seismic performance analysis of underground structures based on random field model of soil mechanical parameters

Ma, Chao; Zhou, Shi‐Ping; Chi, Jen-Tsan

doi:10.1016/j.eqrea.2022.100170

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…Yue Cuizhou et al [9] conducted vibration table tests on station structures with reinforced central columns. Ma Chao et al [10] analyzed the influence of soil mechanic parameters on the seismic performance of underground structures using numerical simulation. Chen Zhiyi et al [11] conducted vibration table tests on multi-layer subway stations to study their seismic response, finding that in addition to horizontal shear deformation, rotational vibration also occurs in subway stations.…”

Section: Introductionmentioning

confidence: 99%

Shaking Table Tests on the Seismic Response of Symmetrically Integrated Underground Stations

Ming,

Tao,

Wang

2024

Symmetry

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This paper focuses on the seismic response of symmetrical underground subway stations to seismic waves with varying frequencies and peak ground accelerations (PGAs), essential in light of growing urban underground transit systems. A 1/40 scale station model was subjected to seismic simulations using waves from the Wenchuan and Tangshan earthquakes and an artificial wave spanning 0.1 g to 0.5 g PGAs. Shaking table tests revealed that seismic impacts divide at PGA = 0.3 g; high-frequency waves affect structures more below this threshold, while low-frequency waves have more impact above it. The columns on the third basement level responded more to seismic activity, particularly at their base. The study recommends prioritizing the seismic design of these columns during station construction, especially in earthquake-prone zones. Understanding the dynamic effects of different frequencies and amplitudes is crucial for selecting and reinforcing materials and structural designs to enhance seismic resistance.

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Section: Introductionmentioning

confidence: 99%