摘要
基于124根集中荷载作用下的钢筋混凝土梁的受剪承载力试验结果,对建工规范(GB50010-2002)和公路规范(JTG D62-2004)中的钢筋混凝土梁受剪承载力的计算公式进行了对比分析,并应用结构可靠度分析的一次二阶矩法,对两本规范中的计算公式进行了可靠度分析,最后按照建工统一标准(GB50068-2001)和公路统一标准(GB/T50283-1999)的要求,对两本规范中的计算公式进行了评价。结论表明,公路规范中的计算公式使用立方体抗压强度标准值是欠妥当的,并且该计算公式的可靠指标计算结果为4.102,不符合公路统一标准(GB/T50283-1999)的规定。
Based on the experimental results of 124 reinforced concrete beams under point loads, comparison and analysis are made on the calculation formulae of shear capacity of reinforced concrete beams in building structure code （GB50010-2002） and highway engineering structure code （JTG D62-2004） .The single second-order moment method, which is used in the analysis of structural reliability, is applied to analyse the reliability of the calculation formulae in two codes. According to the demand of Unified Standards for huilding structures （GB50068-2001） and highway engineering structures （GB/T50283-1999）, appraises are made on the calculation formulae in two codes. It is concluded that it isn＇ t proper to use the characteristic value of cube strength in the calculation formula of highway engineering structure code （JIG D62-2004）, and the calculation results of reliability index of the calculation formula is 4.102, which doesn＇t meet the regulations of the Unified Standard for highway engineering structures （GB/T50283-1999） .
出处
《公路交通科技》
CAS
CSCD
北大核心
2007年第7期76-81,共6页
Journal of Highway and Transportation Research and Development
基金
江苏省建设系统科技计划资助项目(JS20042)
