大型预应力梁式薄壳渡槽整体稳定性分析  

Global Stability Analysis of Large-scale Prestressed Beam Thin-shell Aqueduct

作　　者：白新理[1] 马文亮[1] 

机构地区：[1]华北水利水电学院,河南郑州450011

出　　处：《水利与建筑工程学报》2008年第3期12-14,共3页Journal of Water Resources and Architectural Engineering

基　　金：水利部科技创新项目(SCX2001-15)

摘　　要：采用伽辽金法建立了U形和矩形截面薄壳渡槽整体侧扭稳定性分析的平衡方程,推导了临界荷载的计算公式,并通过实例计算分析了公式的正确性,探讨了渡槽侧扭稳定特性,可供大型薄壳渡槽的整体稳定性设计参考。Galerkin method is adopted to set up a equilibrium equation for global side-torsion stability analysis of a Ushaped and rectangle thin-shell aqueduct, and a calculation formula for critical load is deduced. The validity of the formula is proved through calculating examples, the characteristics of the side-torsion stability of the aqueduct is discussed, to provide references for the design of a large-scale thin-shell aqueduct.

关 键 词：薄壳渡槽 伽辽金法 整体稳定性分析 临界荷载 

分 类 号：TV672.3[水利工程—水利水电工程]