Structural Engineering and Mechanics

  • 제21권5호
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  • Pages.507-518
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  • 2005
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Probabilistic shear-lag analysis of structures using Systematic RSM

  • Cheng, Jin (Department of Bridge Engineering, Tongji University) ;
  • Cai, C.S. (Department of Civil and Environmental Engineering, Louisiana State University) ;
  • Xiao, Ru-Cheng (Department of Bridge Engineering, Tongji University)
  • 투고 : 2004.12.07
  • 심사 : 2005.09.02
  • 발행 : 2005.11.30
⟨ 이전 논문 다음 논문 ⟩

초록

In the shear-lag analysis of structures deterministic procedure is insufficient to provide complete information. Probabilistic analysis is a holistic approach for analyzing shear-lag effects considering uncertainties in structural parameters. This paper proposes an efficient and accurate algorithm to analyze shear-lag effects of structures with parameter uncertainties. The proposed algorithm integrated the advantages of the response surface method (RSM), finite element method (FEM) and Monte Carlo simulation (MCS). Uncertainties in the structural parameters can be taken into account in this algorithm. The algorithm is verified using independently generated finite element data. The proposed algorithm is then used to analyze the shear-lag effects of a simply supported beam with parameter uncertainties. The results show that the proposed algorithm based on the central composite design is the most promising one in view of its accuracy and efficiency. Finally, a parametric study was conducted to investigate the effect of each of the random variables on the statistical moment of structural stress response.

키워드

과제정보

연구 과제 주관 기관 : National Nature Science Foundation of China

참고문헌

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피인용 문헌

  1. Bridge Model Updating Using Response Surface Method and Genetic Algorithm vol.15, pp.5, 2010, https://doi.org/10.1061/(ASCE)BE.1943-5592.0000092
  2. Combined use of SHMS and finite element strain data for assessing the fatigue reliability index of girder components in long-span cable-stayed bridge vol.54, pp.2, 2010, https://doi.org/10.1016/j.tafmec.2010.10.008