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Reliability Analyses of RC Beams Considering Shear-Moment Interaction

机译:考虑剪力-弯矩相互作用的RC梁的可靠度分析

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The reliability of reinforced concrete (RC) overhanging beams designed per the current Canadian concrete design code, CSA A23.3-04, is evaluated considering combined shear force and bending moment. A modified compression field theory (MCFT)-based procedure is implemented to predict the shear-moment interaction diagram of the critical cross section in the overhanging beam. The statistical parameters of the coupled shear-moment resistance are evaluated by incorporating the MCFT-based procedure in the Monte-Carlo simulation. The first-order reliability method (FORM) is employed to evaluate the reliability indices of the overhanging beams based on the statistics of the shear-moment resistance and load effects. The calculated reliability indices are compared with the selected target reliability index to examine the adequacy of the design provisions specified in CSA A23.3-04.
机译:根据加拿大现行混凝土设计规范CSA A23.3-04设计的钢筋混凝土(RC)悬臂梁的可靠性是在考虑了剪切力和弯矩的基础上进行评估的。基于改进的压缩场理论(MCFT)的过程被用来预测悬臂中的关键截面的剪切矩相互作用图。通过在蒙特卡洛模拟中结合基于MCFT的过程来评估耦合的剪切矩阻力的统计参数。基于剪切矩抗力和载荷效应的统计数据,采用一阶可靠性方法(FORM)评估悬挑梁的可靠性指标。将计算出的可靠性指标与选定的目标可靠性指标进行比较,以检查CSA A23.3-04中指定的设计规定是否足够。

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