摘要
通过分析可靠指标β的几何意义及分项系数的基本概念,构造虚拟极限状态曲面,探讨了在目标可靠指标βnom下结构极限状态设计表达式中分项系数的计算方法,讨论了变量相关且服从一般分布情况下分项系数的计算方法。并通过算例验证了所论方法的正确性。
Based on the geometrical meaning of the reliability index b and the basic concept of partial coefficients, the calculation method for the partial coefficient in the structure limit states design equation is discussed under the objective reliability index bnom by constructing a virtual limit state camber. Meanwhile, the calculation method for the partial coefficient under an ordinary distribution of correlated variables is also discussed. A numerical example shows the effectiveness of the methods proposed.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2002年第6期623-627,共5页
Journal of Southwest Jiaotong University