波形钢腹板矮塔斜拉桥参数敏感性分析  

Analysis of Parameters Sensitivity of Extradosed Cable-Stayed Bridge with Corrugated Steel Webs

作　　者：王立峰[1] 姜洪伟[1] 崔海龙 

机构地区：[1]东北林业大学土木工程学院,黑龙江哈尔滨150040 [2]中建交通建设集团有限公司,北京100142

出　　处：《公路工程》2015年第2期117-121,共5页Highway Engineering

基　　金：交通运输部西部交通建设科技项目(200831877490);黑龙江省博士后科学基金项目(LBH-Z14013)

摘　　要：以朝阳沟水库特大桥为研究对象,运用有限元分析软件Midas Civil建模进行参数敏感性分析,从而得到主梁自重、主梁混凝土弹性模量、斜拉索张拉力、预应力损失、拉索弹性模量、混凝土收缩徐变对成桥时桥梁线形、内力以及索力产生的影响,得出对结构影响显著的敏感性参数,分析结果为施工控制提供了依据。Taking Chaoyanggou reservoir bridge as the object of research,this paper utilizes the finite element analysis software Midas Civil to establish a model for analysis of parameters to obtain the sensitivity of design parameters such as the weight of girder,the elastic modulus of concrete,the cable tensile force,the loss of prestress,the elastic modulus of cable,shrinkage and creep of concrete,so as to compute and compare the influences of these parameters on main girder alignment,structural internal force and the cable force in the bridge＇s completion state. It is concluded that the sensibility parameters influencing significantly on structure are determined. The analysis results provide a basis for construction control.

关 键 词：波形钢腹板 矮塔斜拉桥 施工控制 参数敏感性 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]