三峡厂房坝段引水管道孔口配筋三维非线性分析  

Three-dimensional non-linear analysis on the reinforcement in the opening of diversion pipe in the dam section of power house of Three Gorges Project

作　　者：彭宣茂[1] 傅作新[1] 钱向东[1] 

机构地区：[1]河海大学工程力学研究所,江苏南京210098

出　　处：《水力发电》2001年第4期15-18,共4页Water Power

基　　金：三峡枢纽工程大坝专题! [ZF 95 (Ⅰ ) 14 ]

摘　　要：:采用三维非线性有限元分析方法 ,考虑钢筋和混凝土的联合作用 ,对三峡厂房坝段引水管道孔口配筋方案进行计算研究 ,求出了设计工况下引水管道孔口周围混凝土和钢筋的开裂和屈服范围。通过逐级加大孔内水压力强度 ,求得钢筋应力达到屈服时的内水压力超载系数 。The reinforcement arrangement in the opening of diversion pipe in the powerhouse dam section of Three Gorges Project was calculated and studied by using the three dimensional non linear finite analysis method and taking the joint action of steel bar and concrete into account. The scope of crack and yielding of concrete and steel bar in the surrounding of the opening of diversion pipe under the design working conditions was got. Through increasing gradually the water pressure in the opening, the overload coefficient of internal water pressure was got when the stresses of steel bar reaches yielding limit, in order to assess the safety degree of the strength of the opening of powerhouse dam section after reinforcement.

关 键 词：厂房坝段 孔口配筋 三维非线性分析 三峡工程 引水管道 

分 类 号：TV732.4[水利工程—水利水电工程] TV332