摘要
以"引入模糊示性函数的蒙特卡罗法"为基础,建立了一种混凝土构件裂缝控制可靠指标计算方法。对GB50010—2010《混凝土结构设计规范》以及修订前规范GB 50010—2002中裂缝宽度计算公式的可靠指标进行了计算比较。由此得出:GB 50010—2010中裂缝宽度计算公式的可靠指标处于1.0～1.4之间,较修订前规范公式的可靠指标整体下降了0.8左右。目前仍宜将规范公式的裂缝宽度计算保证率取为95%。
One new quantitative analysis method to calculate crack control reliability indexes was created by applying ＂the Monte Carlo method with fuzzy indicator function＂.By using this method the reliability indexes of crack width calculation formula provided in GB 50010—2002 and GB 50010—2010 were computed and compared.Then two conclusions are gotten： Firstly,the reliability index of crack width calculation in GB 50010—2010 is mainly from 1.0 to 1.4,which is approximately 0.8 lower than the one in GB 50010—2002;Secondly,the crack width calculation guarantee rate should be kept as 95% to ensure the concrete member durability.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2012年第3期80-85,共6页
Journal of Wuhan University of Technology
基金
中央高校基本科研业务费专项资金(20102100101000092)
关键词
混凝土裂缝
耐久性
模糊可靠度
受弯构件
轴心受拉构件
concrete cracks
durability
fuzzy reliability index
flexural members
members under axial tension
