摘要
大型预应力混凝土渡槽结构应该满足抗裂止水的设计要求,即渡槽结构受拉区域混凝土不产生拉应力.从这一基本设计要求出发,渡槽结构必须具有整体性能好、受力条件合理,并能避免混凝土结构中的应力集中问题发生.研究表明,预应力U形薄壳渡槽结构具有造型简单、受力条件好、材料用量省、施工方便、水利条件优越,这种结构充分地显示出结构形式与受力内涵优化统一的优点。
The large-scale prestressed concrete beam flume structure should be no crack and leakage.No tensile stress is generated on tensile range of flume structure.The flume structure must be well on integral capability and stressing condition.After research on it,we think that the prestressed U-shaped thin shell flume structure possesses lots of merit,such as,simple shape,ascendant stressing condition,saving material,convenient construction,predominant water flow condition.The structure optimizes fully the modality and stressing,fulfils demand on design.
出处
《华北水利水电学院学报》
1999年第4期16-20,共5页
North China Institute of Water Conservancy and Hydroelectric Power
基金
南水北调输水工程渡槽结构分析研究项目!(95- NZ-1)
关键词
水利工程
薄壁梁
渡槽
预应力混凝土
设计
结构
hydraulic engineering
thin shell beam flume
prestressed concrete
crack resistance design
