预应力混凝土双向受弯构件的优化设计  

Optimum design of the PRE-stressed concrete members subjecting to biaxial bending

作　　者：楼卓[1] 金海峰[2] 钱国桢[2] 王柏生[1] 

机构地区：[1]浙江大学,浙江杭州310009 [2]杭州天元建筑设计研究院,浙江杭州310009

出　　处：《混凝土》2004年第2期14-15,27,共3页Concrete

摘　　要：　本文以新规范[5]为依据,把受拉区与受压区张拉控制应力作为两个设计变量,以构件的造价最小为目标函数,考虑了九个约束条件,编制了优化程序,采用了Powell法对预应力混凝土双向受弯构件进行了优化设计,并给出了比较实例。On the basis of new codes,this paper takes stretching control stress of tensile bars and compressed bars as two values of optimum design,meanwhile,regards the minimum cost of concrete members as target function,and takes nine restrictive conditions into consideration.It programmed an optimal software which introduces Powell method to make optimum design of the pre-stressed concrete members subjecting to biaxial bending.

关 键 词：预应力混凝土 优化设计 张拉控制应力 

分 类 号：TU528.571[建筑科学—建筑技术科学]