高塔大跨PC斜拉桥稳定性分析  

Stability Analysis of Long-Span PC Cable-Stayed Bridge with High Tower

作　　者：杨相展 马建军 YANG Xiangzhan;MA Jianjun(Transfigure Design Co.Ltd.,Changsha 410004,China;School of Civil Engineering,Henan University of Science and Technology,Luoyang 471023,China)

机构地区：[1]创辉达设计股份有限公司,湖南长沙410004 [2]河南科技大学土木工程学院,河南洛阳471023

出　　处：《洛阳理工学院学报（自然科学版）》2022年第1期21-25,共5页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：国家自然科学基金项目(11502072);河南省重点研发与推广专项-科技攻关项目(212102310946).

摘　　要：为研究高塔大跨PC斜拉桥的稳定性,利用Midas/Civil软件建立全桥有限元三维模型,分析了桥梁的最大双悬臂阶段、最大单悬臂阶段、成桥状态、运营阶段的稳定性,各阶段稳定特征值均大于4,满足规范要求,可为此类桥梁的设计提供参考。In order to study the stability of this type of bridge,the three-dimensional finite element model of the bridge is established by using the MIDAS/Civil software.The stability of the bridge in the maximum double-cantilever stage,the maximum single-cantilever stage,the completed stage and the operational stage are analyzed in the paper.The stability characteristic value of each stage is more than 4,which meets the requirements and can provide reference for the bridge design of this kind.

关 键 词：高塔大跨 PC斜拉桥 稳定性分析 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]