基于蒙特卡罗法的钢筋混凝土裂缝宽度控制模糊可靠度分析
首发时间:2009-06-16
摘要:结合国内外已收集到的有关混凝土裂缝宽度限值的统计资料和调查报告,通过将裂缝宽度限值作为模糊变量,应用“引入模糊示性函数的蒙特卡罗法”,针对GB 50010-2002《混凝土结构设计规范》给出的普通混凝土受弯构件裂缝宽度计算公式的可靠度指标进行了计算。对规范给出的裂缝宽度计算公式中的变量进行了可靠度敏感性分析,并由此得出荷载比、有效配筋率以及计算中给定的裂缝宽度允许值是影响裂缝宽度可靠指标的主要因素。
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Fuzzy reliability analysis of crack control in Concrete members applying Monte Carlo
Abstract:According to the Chinese and foreign statistical data and research reports, by taking the crack-width limit as fuzzy variable, the “Monte Carlo method with the fuzzy indicator function” was applied to calculate the reliability index of flexural crack-width formula in concrete members provided in GB 50010-2002. The sensitivity analysis of crack-width control reliability to various in crack-formula in GB 50010-2002 was made, and it is concluded that load ratio, effective reinforcement ratio and given allowable crack-width are three main factors to effect the crack-width reliability index.
Keywords: flexural members crack-width fuzzy reliability Monte Carlo
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No.3317315512312451****
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