Resistance partial factor and reliability of cast ball-and-socket support joint |
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| Authors: | Qinghua Han Yan Lu Mingchang Jin |
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| Institution: | (1) School of Architecture, Landscape and Civil Engineering, University College Dublin, Newstead Building, Dublin 4, Ireland;(2) Monash University, Melbourne, VIC, Australia |
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| Abstract: | Considering the uncertainty of material performance, geometric characteristic and analysis method, the analysis of statistical
parameters of the resistance of cast ball-and-socket support joints and the reliability analysis are carried out by JC method
(improved first-order second-moment method) based on the relevant experimental data. Results show that the resistance partial
factor of the joint increases with the increase of the reliability index. The resistance partial factors are suggested corresponding
to the reliability index under different load combinations. Moreover, the suggested resistance partial factor is adopted in
reliability design, and it is found that the reliability index of the joint is larger than the target reliability index. The
optimal load combination is the one in which live load plays an important control role. Finally, based on the suggested resistance
partial factors, the reliability analysis of cast ball-andsocket support joints of a project is conducted. |
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| Keywords: | cast ball-and-socket support reliability analysis resistance partial factor reliability index JC method |
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