漕河渡槽弧段三向预应力结构设计与数值分析  

Three-dimensional Prestressed Structure Design and Numerical Analysis of the Arc Section of the Caohe Aqueduct

作　　者：王康平[1] 张兰华[1] 任德记[1] 张京穗[1] 

机构地区：[1]三峡大学土木水电学院,湖北宜昌443002

出　　处：《中国农村水利水电》2007年第8期54-58,共5页China Rural Water and Hydropower

摘　　要：为了满足漕河渡槽的抗裂要求,考虑了最不利温度作用与7种荷载工况,对漕河渡槽弧段作了系统的结构计算,在3个方向上均配置了预应力筋,最后采用有限单元法对槽身混凝土作了应力复核。分析计算表明:内力及配筋分布比较合理;混凝土应力满足规范要求。To meet the requirement of resisting cracking of the Caohe Aqueduct,the structural calculation is conducted under the most unfavourable temperature of 7 load conditions,reinforced steel bars are disposed in three dimensions,and the stress in the aqueduct concrete is finally checked by the Finite Element Method.The analysis and calculation show that the distributions of the internal forces and steel bars reinforced are reasonable and the stress in the concrete meets the requirements of specification.

关 键 词：渡槽 三向预应力 有限元 

分 类 号：TV335[水利工程—水工结构工程]