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http://dx.doi.org/10.12989/acd.2017.2.2.133

Reliability analysis of double-layer domes with stochastic geometric imperfections  

Gordini, Mehrdad (Department of Civil Engineering, Kermanshah Branch, Islamic Azad University)
Habibi, Mohammad Reza (Department of Civil Engineering, Kermanshah Branch, Islamic Azad University)
Sheidaii, Mohammad Reza (Department of Civil Engineering, College of Engineering, Urmia University)
Tahamouliroudsari, Mehrzad (Department of Civil Engineering, Kermanshah Branch, Islamic Azad University)
Publication Information
Advances in Computational Design / v.2, no.2, 2017 , pp. 133-146 More about this Journal
Abstract
This study aimed to investigate the effect of initial member length an imperfection in the load carrying capacity of double-layer domes space structures. First, for the member length imperfection of each member, a random number is generated from a normal distribution. Thereupon, the amount of the imperfection randomly varies from one member to another. Afterwards, based on the Push Down analysis, the collapse behavior and the ultimate capacity of the considered structure is determined using nonlinear analysis performed by the OpenSees software and this procedure is repeated numerous times by Monte Carlo simulation method. Finally, the reliability of structures is determined. The results show that the collapse behavior of double-layer domes space structures is highly sensitive to the random distribution of initial imperfections.
Keywords
reliability; Monte Carlo simulation method; progressive collapse; imperfection; double layer grids; space structures; domes;
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Times Cited By KSCI : 5  (Citation Analysis)
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