摘要
本文采用作用效应Ｓ和结构或构件的抗力Ｒ作为综合的基本随机变量，建立了当Ｓ和Ｒ均按正态分布或对数正态分布时，按可靠性标准的结构优化设计模型。
In this paper,the external effect S and load-bearing capacity R are used as synthetical basic random variable. when S and R accorded with normal distribution(or logarithm-normal distribution),mathematical models of optimal design of structures are established according to reliability code.
关键词
可靠指标
结构设计
最优设计
可靠性
reliability
reliability target
optimal design of structures
