摘要
建立预应力混凝土连续梁桥预应力度的模糊优化问题 ,按α-水平截集解法 ,将模糊优化问题转化为确定性的数学规划问题 .求得一较合理的消压弯矩后 ,只需按控制截面的构造进行预应力体系设计 .在此基础上提出了配束自动化的基本思想 ,并以一实例说明其理论应用 .
This paper sets up a fuzzy optimum math model of the prestressed degree for prestressing bundle disposition of prestressed concrete continuous beam bridges,which is transformed into a clear math program by α level cut set.By the solution of the clear math program,a succession of reasonable prestressing moments can be obtained.Then it is convenient to dispose the prestressing system by only taking account of geometric factors of all controlling sections.Based on this,a theory of automatic disposition of the prestressing bundles is proposed and an engineering example is given to demonstrate it.
出处
《武汉交通科技大学学报》
EI
2000年第1期68-70,共3页
Journal of Wuhan University of Technology(Transportation Science & Engineering)
关键词
连续梁
预应力束配置
模糊集合
优化决策
prestressed concrete continuous beam bridges
disposition of prestressing bundles
prestressed degree
fuzzy sets
optimum program
