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.
出处
《混凝土》
CAS
CSCD
2004年第2期14-15,27,共3页
Concrete
关键词
预应力混凝土
优化设计
张拉控制应力
pre-stressed concrete
optimum design
stretching control stress
