摘要
采用有限元方法对沙河大型预应力矩形渡槽施工、运行过程进行受力分析,给出了施工、运行过程中不同断面几个特殊点的应力变化曲线,讨论了最大拉、压应力出现的部位,并对几个特殊的应力变化曲线进行比较后知,沙河渡槽的强度在施工、运行过程中是绝对安全可靠的.
The finite element method is adopted to the stress analysis of construction and operational processes in the Shahe large-scale prestress rectangular flume,it is provided that,the variation stresses charts of particularity points in diversity section during the construction and operational processes,the positions of the maximam pull and press stresses are discussed,and comparing with several special stress variation curves,the result is got that,Shahe flume is absolutely safe and reliable in !the strength.
引文
[1]中华人民共和国水利部.SL/T191-96水工混凝土结构设计规范[S].北京:水利水电出版社,1997.
[2]中华人民共和国.SL94-96水利水电预应力施工规范[S].北京:中国水利水电出版社,1997.
[3]陶学康.无粘结预应力混凝土设计与施工[M].北京:地震出版社,1993.
[4]天津大学,同济大学,东南大学.混凝土结构[M].北京:中国建筑工业出版社,1994.
[5]冯大斌,栾贵臣.后张法预应力混凝土施工手册[M].北京:中国建筑工业出版社,1999.