An improvement of the response surface method based on reference points for structural reliability analysis

Zhao, Wei; Liu, Weihua; Yang, Qijiao

doi:10.1007/s12205-016-1312-9

Cited by 10 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the probability distribution of input variables is determined according to the test data or specification parameters, the response surface method could be adopted to analyze the structural reliability 30 . In response surface method, a fitted response surface is adopted to replace the complex functional equation, which is essentially an improvement of Monte Carlo method and could greatly improve the efficiency of reliability evaluation 31 . However, the calculation accuracy of response surface method depends on the fitting degree of the selected sample points near the limit state surface 32 .…”

Section: Reliability Analysis Methods Of Arch Dammentioning

confidence: 99%

Study on the freeze–thaw effect on concrete arch dam using an improved response surface method

Cai,

Yang,

Yang

2023

Sci Rep

View full text Add to dashboard Cite

The damming materials will be deteriorated during the long-term service of concrete arch dam by weathering, seepage dissolution, freeze–thaw and other factors which will put dams at potential risk. However, there are few researches on the reliability assessment of arch dams considering the effect of material deterioration. In this paper, a prediction model of concrete mechanical properties under freeze–thaw cycles is established using regression analysis. Considering various uncertain factors, a time-varying structural reliability analysis model is established using finite element equivalent stress method and an optimized response surface method with improved sampling strategy and convergence criterion. A case study is later carried out. The results show that, at the early stage of freeze–thaw, the structural failure probability will increase steadily in a small range. However, as the tensile strength of concrete continues to decrease under long-time freeze–thaw action, the reliability of the arch dam structure will suddenly fall off a cliff. The proposed deterioration model and reliability analysis probability model are reasonable and practical and could be serve as a technical support for similar engineering projects.

show abstract

Section: Reliability Analysis Methods Of Arch Dammentioning

confidence: 99%

Study on the freeze–thaw effect on concrete arch dam using an improved response surface method

Cai,

Yang,

Yang

2023

Sci Rep

View full text Add to dashboard Cite

show abstract

“…In such case, direct Monte Carlo approach may be unacceptable in the stochastic analysis since the finite element dynamic analysis must be required in every sample. The present research, therefore, adopts response surface method (RSM; Faravelli, 1989; Hariri-Ardebili et al, 2018; Zhao et al, 2016; Zheng and Das, 2000). Through approximating the implicit response function by a basic and explicit polynomial, the RSM provides an efficient and versatile way to apply numerical methods suitable for the explicitly expressed function taken into analysis with the implicit form (Huh and Haldar, 2001).…”

Section: Introductionmentioning

confidence: 99%

An advanced pseudo excitation method and application in analyzing stochastic wind-induced response of slender bridge tower

Zhu

Xiang

2019

Advances in Structural Engineering

View full text Add to dashboard Cite

Based on the theory of pseudo excitation method, a so-called stochastic pseudo excitation method is proposed to acquire the sampling results of stochastic dynamic response of uncertain bridge structure directly, which cannot be achieved by the classical pseudo excitation method. In order to reduce the computational cost of the dynamic finite element analysis of the samples to gain the probability density function of structural responses, the response surface method was adopted to handle the sampling results. The stochastic pseudo excitation method combing response surface method is verified by comparing with Monte Carlo method in good agreement. As an example, the stochastic response of a super-high slender bridge tower subjected to the Davenport fluctuating wind excitations is evaluated taking into account the uncertainties of material properties and wind speed. Numerical results show that the effect of uncertainties of structure or excitations plays a constant role in the stochastic response at the different levels of external excitations.

show abstract

A New Dam Reliability Analysis Considering Fluid Structure Interaction

et al. 2017

View full text Add to dashboard Cite

An improvement of the response surface method based on reference points for structural reliability analysis

Cited by 10 publications

References 18 publications

Study on the freeze–thaw effect on concrete arch dam using an improved response surface method

Study on the freeze–thaw effect on concrete arch dam using an improved response surface method

An advanced pseudo excitation method and application in analyzing stochastic wind-induced response of slender bridge tower

A New Dam Reliability Analysis Considering Fluid Structure Interaction

Contact Info

Product

Resources

About