Multi-platform soil-structure interaction simulation of Daikai subway tunnel during the 1995 Kobe earthquake
- Authors
- Sayed, Mohamed A.; Kwon, Oh-Sung; Park, Duhee; Quang Van Nguyen
- Issue Date
- Oct-2019
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Multi-platform simulation; Daikai tunnel; Soil-structure interaction; Dynamic analysis; UT-SIM framework
- Citation
- SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, v.125, pp.1 - 13
- Indexed
- SCIE
SCOPUS
- Journal Title
- SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
- Volume
- 125
- Start Page
- 1
- End Page
- 13
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/12445
- DOI
- 10.1016/j.soildyn.2019.04.017
- ISSN
- 0267-7261
- Abstract
- The multi-platform simulation technique is employed in this study to analyze the Daikai subway tunnel that collapsed during the 1995 Kobe earthquake. The generalized distributed simulation framework (UT-SIM framework), developed at the University of Toronto, is used to perform the analysis. The soil-tunnel system is subdivided into two substructures: the soil domain and the tunnel domain. The open-source finite element analysis program OpenSees is used to model the soil domain subjected to the ground motion excitation, while the state-of-the-art reinforced concrete analysis software package, VecTor2, is used to model the nonlinear behavior of the tunnel. The two modules are integrated with the UT-SIM framework. The integrated soil tunnel models, through the multi-platform simulation technique, replicated the damage of the center column and the actual failure mode of the tunnel. The results of the soil and tunnel models are post-processed and visualized. It is confirmed that the multi-platform simulation method can replicate the crack pattern, as well as the deformation and failure mechanism of the center column.
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