斜拉桥预拱度设置敏感因素分析  

Sensitive Factor Analysis for Cable-stayed Bridge Camber Settings

作　　者：周群[1,2] 

机构地区：[1]广西交通科学研究院,广西南宁530007 [2]长沙理工大学,湖南长沙410004

出　　处：《西部交通科技》2013年第7期97-100,共4页Western China Communications Science & Technology

摘　　要：斜拉桥预拱度设置的影响因素较多,文章以东合大桥为例,通过GQJS有限元计算及现场实测,分析了收缩徐变、张拉龄期、弹性模量、容重、温度等因素对预拱度设置的影响,并阐述了斜拉桥施工监控中预拱度设置的注意事项。The cable-stayed bridge camber settings are influenced by many factors,and with Donghe Bridge as the example,through GQJS finite element calculation and field measurement,the article analyzed the impact of creep and shrinkage,tensioned age,elastic modulus,unit weight,temperature and other factors on the camber settings,and described the considerations for the camber settings in cable-stayed bridge construction monitoring.

关 键 词：斜拉桥 预拱度 设置 影响因素 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]