根据"大震不倒"要求反演优化设计工程结构

工程结构系统在地震作用下的设计要求是“小震不坏,大震不倒”,现行的概念设计加抗震验算设计方法给出的只能是一个可用解,而不是满足“大震不倒”要求的最优解。本文结合钢筋混凝土框架结构,讨论了根据工程结构“大震不倒”的要求反演优化设计工程结构的有关参数(如钢筋混凝土框架的配筋率、混凝土标号、截面尺寸等)的概念、方法并给出了算例,说明这种不同于传统结构设计的新的设计理念是可行的,有关方法是有效的。

Inverse optimization design engineering structure according to the request of no collapsing with strong earthquake

The design criterion of engineering structure under earthquake effect is that No Damage With Weak Earthquake and No Collapsing With Strong Earthquake. With the present concept design and anti-seismic check design method, you can only obtain a feasible solution, not an optimum solution of satisfying the request of No Collapsing With Strong Earthquake. Combined reinforced concrete frame in this paper, they were discussed that the concept and mehod of inverse optimization design engineering structure parameters(e.g. the ratio of disposing reinforcing bar, the grade of concrete, the dimension of section etc.) according to the request of No Collapsing With Strong Earthquake. Two examples were given in this paper. It can be illustrated that the new design idea is feasible and effective.