装配式城市桥梁现浇承台立柱预埋钢筋定位施工技术  

Positioning Construction Technology of Embedded Reinforcement for Cast-in-Place Pile Cap Column of Prefabricated Urban Bridge

作　　者：刘城 韩磊 LIU Cheng;HAN lei(Shanghai Municipal Engineering Design Institute(Group)Co.Ltd.,Shanghai 200092,China;Zhejiang Communications Construction Group Co.Ltd.Jinzhu Transportation Construction Co.Ltd.,Hangzhou 310051,China)

机构地区：[1]上海市政工程设计研究总院(集团)有限公司,上海200092 [2]浙江交工金筑交通建设有限公司,杭州310051

出　　处：《工程建设与设计》2023年第24期211-213,共3页Construction & Design for Engineering

摘　　要：上海市奉贤区某高架桥梁,部分桩基础、立柱、盖梁、小箱梁、部分防撞护栏采用装配式施工。施工中,承台中立柱预埋钢筋水平位置精度小于或等于±2 mm;高程精度小于或等于±4 mm。为了提高精度,结合现场情况,决定采用钢筋场内集中预制所需的立柱预埋钢筋,委托专业厂家加工定位胎架与定位板。在一系列的定位措施中,经过业主、监理、项目部三方检核,最终达到控制精度。A certain elevated bridge in Fengxian District,Shanghai adopts prefabricated construction for the entire bridge,including pile foundations,columns,cover beams,small box girders,and some anti-collision guardrails.During construction,the horizontal position accuracy of the embedded steel bars in the columns of the bearing platform is less than or equal to±2 mm;The elevation accuracy is less than or equal to±4 mm.In order to improve the accuracy and take into account the on-site situation,it has been decided to use the column embedded steel bar required for centralized prefabrication in the steel bar field,and commission a professional manufacturer to process the positioning tire frame and positioning plate.Through a series of positioning measures,the owner,supervisor,and project department have verified and finally achieved control accuracy.

关 键 词：装配式桥梁 墩柱预埋 承台钢筋 钢筋定位 施工技术 

分 类 号：U445.471[建筑科学—桥梁与隧道工程]