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Seismic response of underground structure–soil–aboveground structure coupling system: Current status and future prospects
Highlights Seismic response analysis methods of coupling system are reviewed. Seismic response characteristics of coupling system are summarized. Interaction mechanisms of three parts of coupling system are discussed. Influence factors of coupling system seismic response are summarized. Problems and prospects of current studies on seismic response of system are provided.
Abstract In dense urban environments, shallow underground structures widely exist in the vicinity of aboveground structures. Under earthquakes, underground structures interact with aboveground structures through the foundation soil. However, the current seismic designs of underground and aboveground structures are mostly independent of each other, without considering their interaction. Aiming at this problem, this paper considers the underground structure, soil, and aboveground structure as an interactive coupling system, and summarizes the state of the art of the system from the following aspects: seismic response analysis methods, evaluation indexes, response characteristics, influence factors, etc. Based on the summarized results, the interaction mechanism of underground structure, foundation soil, and aboveground structure is discussed. In detail, the influence of aboveground structure on underground structure mainly include the “shaking inertia effect” and “foundation reinforcement effect,” the influence of underground structure on aboveground structure mainly include the “seismic energy dissipation effect” and “system stiffness weakening effect,” and the influence of their existence on the free field depends on their joint action. Finally, some deficiencies existing in the previous studies and future prospects are provided.
Seismic response of underground structure–soil–aboveground structure coupling system: Current status and future prospects
Highlights Seismic response analysis methods of coupling system are reviewed. Seismic response characteristics of coupling system are summarized. Interaction mechanisms of three parts of coupling system are discussed. Influence factors of coupling system seismic response are summarized. Problems and prospects of current studies on seismic response of system are provided.
Abstract In dense urban environments, shallow underground structures widely exist in the vicinity of aboveground structures. Under earthquakes, underground structures interact with aboveground structures through the foundation soil. However, the current seismic designs of underground and aboveground structures are mostly independent of each other, without considering their interaction. Aiming at this problem, this paper considers the underground structure, soil, and aboveground structure as an interactive coupling system, and summarizes the state of the art of the system from the following aspects: seismic response analysis methods, evaluation indexes, response characteristics, influence factors, etc. Based on the summarized results, the interaction mechanism of underground structure, foundation soil, and aboveground structure is discussed. In detail, the influence of aboveground structure on underground structure mainly include the “shaking inertia effect” and “foundation reinforcement effect,” the influence of underground structure on aboveground structure mainly include the “seismic energy dissipation effect” and “system stiffness weakening effect,” and the influence of their existence on the free field depends on their joint action. Finally, some deficiencies existing in the previous studies and future prospects are provided.
Seismic response of underground structure–soil–aboveground structure coupling system: Current status and future prospects
Liu, Bo (author) / Zhang, Dingwen (author) / Li, Xing (author) / Li, Jianchun (author)
2022-01-05
Article (Journal)
Electronic Resource
English
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