大跨度连续梁转体施工平衡称重分析  

Analysis on Balance Weighting of Long-span Continuous Beam before Rotation Construction

作　　者：舒康[1] 王常峰[1] 秦凯[1] 

机构地区：[1]烟台大学,山东烟台264005

出　　处：《城市道桥与防洪》2016年第12期116-119,共4页Urban Roads Bridges & Flood Control

摘　　要：青连铁路工程牟家村跨同三高速公路特大桥,上跨兖日铁路,采用了转体的施工方法,在桥梁转体之前对转动体进行了称重试验以保证桥梁安全顺利转动。采用了平衡称重的试验方法,对测试结果进行了分析,提出了对转体梁的平衡配重方案,为正式转体牵引力大小的确定提供了基本参数。转体过程表明,桥梁的配重合适,桥梁转体过程进展顺利。Moujiacun Bridge crossing Tongsan Expressway in Qingdao ~ Lianyungang Railway Project is constructed by the rotation method when overpassing Yanzhou ~ Rizhao Railway. The rotator is weighed and tested before the bridge is rotated in order to guarantee the safe and smooth rotation construction of bridge. The balance weighting test method is used to analyze the test result. The balance weighting scheme for rotated beam is proposed,and provides the basic parameters for the determination of the traction size during the formal rotation. The rotation processshowsthatthebridgeweightingissuitableandthebridgerotationprocessissmooth.

关 键 词：大跨度连续梁 转体施工 称重试验 不平衡力矩 配重 

分 类 号：U445[建筑科学—桥梁与隧道工程]