U型薄壳渡槽短壳槽身应力的三维模型光弹性试验研究

通过三维模型光弹性试验,研究了短壳槽身的应力状态。得到了分别在自重、半槽水、设计水、满槽水荷载及在自重与上述几种荷载共同作用下槽壳、端肋、横杆上的表面应力以及在设计水荷载下端肋的主拉应力轨迹线和在设计水与自重共同作用下槽壳表面的主拉应力等值线图详细结果。

Testing Study of Stress in Short U-shaped Shell Flume Using 3-Dimentional Model Photoelasticity

Stress states in the short U-shaped shell flume were studied using 3-dimentional photoelactic model tests. Detailed data of surface stresses in the shell, end ribs and over-arms loaded with deadweight, flume with half water, flume with design water and flume with full water as well as their combinations were obtained. The principal stress track curve in the end ribs under design water load and the isoline maps of principal on surface of the shell under both actions of design water load and the deadload were also gained.