三索面斜拉桥索塔锚固区的应力场分析  

Stress Field Analysis of Anchorage Zone on Tower of Cable-stayed Bridge with Three Cable Planes

作　　者：徐广民[1] 刘炎海[2] 蔺鹏臻[2] 刘凤奎[2] 

机构地区：[1]郑州铁路职业技术学院,河南郑州450052 [2]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2008年第4期33-36,共4页Journal of Lanzhou Jiaotong University

摘　　要：斜拉桥索塔的受力特性对桥梁的整体性能影响重大,斜拉索锚固区是索塔受力最为复杂的部位,保证其受力安全、合理是设计者最关心的问题之一.对某特大桥的三索面索塔锚固区恒载作用下的应力场进行了三维精细有限元分析,探讨了锚固区应力场的分布规律,总结了锚固区的受力特点,对锚固区的结构设计提出了一些建议.建议和结论对类似结构具有参考和借鉴意义.Anchorage region on tower of cable-stayed bridge has complex structures and stress distributions, and keeping it on a safety state under external loads is more concerned by designers. In this paper, the stress distribution of anchorage region of a cable-stayed bridge＇s tower is analyzed under dead load using 31） finite element method. The rules of stress distribution are presented. Some conclusions and suggestions are put forward. These conclusions and suggestions have reference value to the same structures＇ design.

关 键 词：斜拉桥 索塔 锚固区 应力场 有限元 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]