斜拉桥悬臂施工中的非线性稳定性分析  

Nonlinear Stability Analysis of Cable-stayed Bridges in Cantilever Construction State

作　　者：潘家军[1] 陆伟[1] 唐小兵[2] 

机构地区：[1]武汉大学土木建筑工程学院,武汉430072 [2]武汉理工大学交通学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2008年第2期225-228,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：湖北省交通厅科技项目资助(批准号:鄂交科教[2004]570号)

摘　　要：在斜拉桥的悬臂施工中结构的稳定性主要由施工过程控制.文中以非线性稳定性理论为基础,利用ANSYS的单元生死功能对铁罗坪大桥进行了施工全过程的非线性稳定性分析,分析了悬臂施工长度、不平衡施工荷载和横向静风荷载等因素对斜拉桥施工稳定性的影响.In cantilever construction state of cable-stayed bridges,the structure stability directly lies on its construction state in some cases. Based on the nonlinear stability theory, this paper discusses the nonlinear stability of the cable-stayed bridge structure called TIE LUO PING Bridge by means of the technology of element birth and death of ANSYS. The influence of the Cantilever length, the non-balanced construction load and the wind load on the structure stability is analyzed.

关 键 词：斜拉桥 非线性 悬臂施工 稳定 

分 类 号：U441[建筑科学—桥梁与隧道工程]