悬浇连续梁桥主梁施工活载统计分析  

Statistical Analysis of Live Load on Continuous Beam Bridge of Cantilever Casting During Construction

作　　者：张建仁[1] 管国东[1] 杨伟军[1] 

机构地区：[1]长沙交通学院,湖南长沙410076

出　　处：《长沙交通学院学报》2003年第2期1-5,共5页Journal of Changsha Communications University

基　　金：国家自然科学基金资助项目(50178011);湖南省自然科学基金资助项目(01JJY2133);交通部在职博士资助项目(2002-315-852-11)

摘　　要：在对湖南湘阴湘江大桥施工期主梁施工活载现场调查统计的基础上,研究了主梁施工活载随施工节段伸长的变化规律,建立了连续梁桥主梁施工活载的随机过程模型,可供结构设计人员作施工阶段安全性验算时参考;并对今后建立更为精确合理的施工活载模型作了探讨。Based on the investigation and statistical analysis of live load during construction spot observed from Xiangyin Bridge, the chang ing law of construction live load of main beam with varied cantilever length is studied. The random process model of construction live load is obtained which ca n be used by structural designers to examine construction safety. The method to establish much more accurate and reasonable live load model in the future is explored.

关 键 词：连续梁桥 悬臂浇注 施工活载 统计分析 双线性模型 

分 类 号：U448.21[建筑科学—桥梁与隧道工程]