Earthquakes and Structures

  • 제7권3호
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  • Pages.333-347
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  • 2014
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Investigation of elasto-plastic seismic response analysis method for complex steel bridges

  • Tang, Zhanzhan (Department of Architecture & Civil Engineering, Zhejiang University) ;
  • Xie, Xu (Department of Architecture & Civil Engineering, Zhejiang University) ;
  • Wang, Yan (College of Civil Engineering & Architecture, Zhejiang Sci-Tech University) ;
  • Wang, Junzhe (Department of Architecture & Civil Engineering, University of Bath)
  • 투고 : 2014.02.18
  • 심사 : 2014.04.13
  • 발행 : 2014.09.30
⟨ 이전 논문 다음 논문 ⟩

초록

Multi-scale model can take both computational efficiency and accuracy into consideration when it is used to conduct elasto-plastic seismic response analysis for complex steel bridges. This paper proposed a method based on pushover analysis of member sharing the same section pattern to verify the accuracy of multi-scale model. A deck-through type steel arch bridge with a span length of 200m was employed for seismic response analysis using multi-scale model and fiber model respectively, the validity and necessity of elasto-plastic seismic analysis for steel bridge by multi-scale model was then verified. The results show that the convergence of load-displacement curves obtained from pushover analysis for members having the same section pattern can be used as a proof of the accuracy of multi-scale model. It is noted that the computational precision of multi-scale model can be guaranteed when length of shell element segment is 1.40 times longer than the width of section where was in compression status. Fiber model can only be used for the predictions of the global deformations and the approximate positions of plastic areas on steel structures. However, it cannot give exact prediction on the distribution of plastic areas and the degree of the plasticity.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

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피인용 문헌

  1. Earthquake performance of the two approach viaducts of the bosphorus suspension bridge vol.11, pp.3, 2016, https://doi.org/10.12989/eas.2016.11.3.387
  2. Residual seismic performance of steel bridges under earthquake sequence vol.11, pp.4, 2016, https://doi.org/10.12989/eas.2016.11.4.649