Structural Engineering and Mechanics

  • 제32권1호
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  • Pages.37-53
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  • 2009
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Reliability analysis of wind-excited structures using domain decomposition method and line sampling

  • Katafygiotis, L.S. (Department of Civil Engineering, Hong Kong University of Science and Technology) ;
  • Wang, Jia (Department of Civil Engineering, Hong Kong University of Science and Technology)
  • 투고 : 2008.07.04
  • 심사 : 2009.10.28
  • 발행 : 2009.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper the problem of calculating the probability that the responses of a wind-excited structure exceed specified thresholds within a given time interval is considered. The failure domain of the problem can be expressed as a union of elementary failure domains whose boundaries are of quadratic form. The Domain Decomposition Method (DDM) is employed, after being appropriately extended, to solve this problem. The probability estimate of the overall failure domain is given by the sum of the probabilities of the elementary failure domains multiplied by a reduction factor accounting for the overlapping degree of the different elementary failure domains. The DDM is extended with the help of Line Sampling (LS), from its original presentation where the boundary of the elementary failure domains are of linear form, to the current case involving quadratic elementary failure domains. An example involving an along-wind excited steel building shows the accuracy and efficiency of the proposed methodology as compared with that obtained using standard Monte Carlo simulations (MCS).

키워드

과제정보

연구 과제 주관 기관 : Hong Kong Research Grants Council

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  2. Robust optimization of a hybrid control system for wind-exposed tall buildings with uncertain mass distribution vol.12, pp.6, 2013, https://doi.org/10.12989/sss.2013.12.6.641
  3. Reliability-based optimal design of linear structures subjected to stochastic excitations vol.47, 2014, https://doi.org/10.1016/j.strusafe.2013.11.002
  4. Robust optimal design of tuned mass dampers for tall buildings with uncertain parameters vol.51, pp.1, 2015, https://doi.org/10.1007/s00158-014-1129-4
  5. Reliability-Based Design Optimization of Uncertain Stochastic Systems: Gradient-Based Scheme vol.138, pp.1, 2012, https://doi.org/10.1061/(ASCE)EM.1943-7889.0000304
  6. An efficient simulation method for the first excursion problem of linear structures subjected to stochastic wind loads vol.166, 2016, https://doi.org/10.1016/j.compstruc.2016.01.007
  7. Fully decoupled reliability-based optimization of linear structures subject to Gaussian dynamic loading considering discrete design variables vol.156, pp.None, 2021, https://doi.org/10.1016/j.ymssp.2021.107616
  8. Efficient Simulation Method for First Passage Problem of Linear Systems Subjected to Non-Gaussian Excitations vol.148, pp.1, 2009, https://doi.org/10.1061/(asce)em.1943-7889.0002047