Structural Engineering and Mechanics

  • 제81권4호
  • /
  • Pages.513-522
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  • 2022
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Simplified nonlinear simulation for composite segmental lining of rectangular shield tunnels

  • Zhao, Huiling (Department of Civil Engineering, Shanghai University) ;
  • Liu, Xian (State Key Laboratory for Hazard Reduction in Civil Engineering, Tongji University) ;
  • Yuan, Yong (State Key Laboratory for Hazard Reduction in Civil Engineering, Tongji University)
  • 투고 : 2019.03.07
  • 심사 : 2021.12.29
  • 발행 : 2022.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Steel-concrete composite segments replacing the conventional reinforced concrete segments can provide the rectangular shield tunnel superiorities on bearing capacity, ductility and economy. A simplified model with high-efficiency on computation is proposed for investigating the nonlinear response of the rectangular tunnel lining composed of composite segments. The simulation model is developed by an assembly of nonlinear fiber beam elements and spring elements to express the transfer mechanism of forces through components of composite segments, and radial joints. The simulation is conducted with the considerations of material nonlinearity and geometric nonlinearity associated with the whole loading process. The validity of the model is evaluated through comparison of the proposed nonlinear simulation with results obtained from the full-scale test of the segmental tunnel lining. Furthermore, a parameter study is conducted by means of the simplified model. The results show that the stiffness of the radial joint at haunch of the ling and the thickness of inner steel plate of segments have remarkable influence on the behaviour of the lining.

키워드

과제정보

This research was financially supported by the National Natural Science Foundation of China (Grant No. 52078376, 52038008, 51208292), Natural Science Foundation of Shanghai, China (19ZR1418700) and the State Key Laboratory for Hazard Reduction in Civil Engineering of Tongji University (Grant No. SLDRCE19-A-13, SLDRCE19-B-39).

참고문헌

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