下游坝面钢衬钢筋混凝土管道温度应力试验分析  

Experimental analysis on thermal stress of steel lined reinforced concrete penstock on downstream surface of dam

作　　者：吴晓玲 

机构地区：[1]长江勘测规划设计研究院枢纽处,湖北武汉430010

出　　处：《长江科学院院报》2001年第2期23-26,共4页Journal of Changjiang River Scientific Research Institute

摘　　要：三峡电站等工程采用下游坝面钢衬钢筋混凝土管道 ,这种管道型式新颖 ,无规范可依。在运行时管壁混凝土开裂 ,及在温度荷载作用下应力和变形情况如何 ,是这类管道结构中尚未解决的重要问题之一。通过仿真材料模型试验及非线性有限元法 ,对带裂缝的钢衬钢筋混凝土管道在内外温度差作用下的温度应力及变形进行了研究 ,获得了可靠的成果 。Steel lined reinforced concrete penstock built on the downstream surface of dam is used in TGP's power station. This kind of penstock is of a novel style. Therefore, how will be the stress and strain statuses of penstock occurring cracks and under the action of temperature load in the operating period is still one of important problems not being solved. By means of simulating model experiment and nonlinear finite element method, the research on temperature stress and strain under the action of temperature differences between the inner and outside of steel lined reinforced concrete penstock was performed. The reliable results were obtained, and primary basis for pipe line design was provided.

关 键 词：钢衬 模型试验 温度应力 裂缝 应变 钢筋混凝土管道 三峡电站 

分 类 号：TV315[水利工程—水工结构工程]