肇庆大桥扩建工程独立钢平台汛期加固设计  

Reinforcement Design of Independent Steel Platform for Zhaoqing Bridge Expansion Project During Flood Season

作　　者：谢朋林 刘晓敏 李祥军 XlE Penglin;LIU Xiaomin;LI Xiangjun(China Construction Sixth Engineering Division Co. , Ltd. , Tianjin 300450, Chin)

机构地区：[1]中国建筑第六工程局有限公司,天津300450

出　　处：《施工技术》2018年第10期75-78,共4页Construction Technology

摘　　要：以肇庆大桥扩建工程为背景,针对深水区大悬臂独立钻孔钢平台防洪问题,提出一种新的防洪思路,即在对临幅桥不产生破坏性影响的前提下,使独立钢平台、钢护筒和临幅桥承台共同抵抗汛期洪水冲击作用。针对本工程设计的防洪加固方案,所有结构满足受力计算要求,且经受住20年一遇洪水冲击的实践考验,证明本加固设计方案安全可行。Zhaoqing Bridge expansion project is taken as the background. In view of the flood protection problem of large cantilever independent steel platform in deep-water area,a new concept about flood protection method is put forword to make independent steel platform,steel casing,parallel bridge＇s pile cap jointly resist the flood impact. Aiming at this project,the flood protection reinforcement scheme is designed and all structures meet the requirements of stress,withstood the test of the impact of worst flooding in 20 years moreover. Results show that the flood protection reinforcement scheme is safe and feasible.

关 键 词：桥梁工程 钢平台 防洪 钢护筒 加固 设计 

分 类 号：U445.75[建筑科学—桥梁与隧道工程] TU391[交通运输工程—道路与铁道工程]