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Earthquake-proof reliability-based design for steel rigid-frame piers of highway bridges

机译:基于抗震可靠性的公路桥梁钢刚架墩设计

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In order to upgrade design codes for highway bridges, reliability-based design methods covering a limit state design and a load and resistance factor design (LRFD) have been investigated. In this study, limit state probabilities of analytical models designed by the LFD considering both different load factors for various geometric shapes of structures and load combinations of D + E and D + L + E are evaluated. As the results, it is clarified that the condition of the load combinations of D + L + E is more critical as an ultimate limit state than that of D + E. This study also confirms that extremely uniform limit state probabilities of the group of rigid frame piers designed by considering various load factors can be calculated.
机译:为了升级公路桥梁的设计规范,已经研究了基于可靠性的设计方法,包括极限状态设计以及荷载和阻力系数设计(LRFD)。在这项研究中,评估了由LFD设计的分析模型的极限状态概率,该模型同时考虑了结构各种几何形状的不同载荷因子以及D + E和D + L + E的载荷组合。结果表明,D + L + E的荷载组合条件作为极限极限状态比D + E更为关键。该研究还证实,刚性群的极限状态概率极其均匀可以考虑各种载荷因素来设计框架墩。

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