摘要
为研究陶粒混凝土局部抗压承载力的计算,进行了74个陶粒混凝土试件的局部抗压承载力试验,分析了陶粒混凝土试件的局部抗压破坏特征。在试验研究的基础上,提出了陶粒混凝土局部抗压承载力计算公式的模型。应用结构可靠度分析的一次二阶矩法,对公式模型进行了可靠度分析,并按照《统一标准》的要求,确定了公式中的待定参数ω的值。最后对影响可靠指标的因素进行了探讨,分析了各因素对可靠指标的影响程度。建议的公式和可靠度分析结果,可供工程实践参考。
In order to study the calculation of bearing capacity of shale ceramsite concrete under local compression, 74 specimens of bearing capacity of shale ceramsite concrete under local compression were experimentally evaluated and the failure characteristics were analyzed. Based on the experimental research, the calculation formula model of bearing capacity of shale ceramsite concrete under local compression was put forward. The first order second moment method was applied to analyse the reliability of the formula model. According to the demand of related standard, the value of parameter ω was fixed. Each factor that influences reliability index was discussed, and influence degree of each factor on reliability indexes was analysed. The suggested formula and the results of reliability analysis can be a reference for practical engineering.
出处
《公路交通科技》
CAS
CSCD
北大核心
2008年第4期67-72,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(04KJB560137)
关键词
桥梁工程
陶粒混凝土
可靠度计算
局部抗压
bridge engineering
shale ceramsite concrete
reliability calculation
local bearing capacity
