坝后背管弹性中心法与有限元方法对比分析  

Comparison Analysis of Elasticity Center Method and Finite Element Method for Penstock Laid on Downstream Surface of Dam

作　　者：王从保[1] 伍鹤皋[1] 张伟[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水电能源科学》2005年第4期8-11,共4页Water Resources and Power

摘　　要：结合某水电站坝后背管,采用结构力学弹性中心法和有限元法分析了内水压力作用下钢衬和环向钢筋的应力及管道径向裂缝,对其计算结果进行对比分析,说明两方法的实用性和有效性。The elasticity center method of structure mechanics and the finite element method are in common use for analyzing the penstock laid on the downstream surface of dam.Based on the data of the penstock at a hydroelectric station, they are applied to analyze the stress of steel liner, loop rebar and the radial crack of concrete when the penstock bears the inner water pressure. Then a comparison analysis is done for the calculated results of both methods. Theoretical ability and availability of the two methods are verified.

关 键 词：坝后背管 弹性中心法 有限元法 裂缝 

分 类 号：TV732.4[水利工程—水利水电工程] O241.82[理学—计算数学]