短线法预制节段梁施工中“断链”问题的修复  

Repairing of "Chain Breaking" Problem in Construction of Precast Segmental Girders by Short Line Match Method

作　　者：姜树栋 杜官民[2] 邹盛武[2] 

机构地区：[1]山东格瑞特监理咨询有限公司,山东威海264200 [2]中铁大桥局集团第三工程有限公司,广东广州510800

出　　处：《桥梁建设》2007年第A01期138-140,共3页Bridge Construction

摘　　要：结合节段梁短线法施工的特点与实践,针对因节段梁损毁造成成桥线形破坏出现“断链”的情况,介绍预留接缝、二次浇注的施工方法,该方法有效地解决了“断链”问题,恢复了成桥线形,满足了架设精度要求。With reference to the construction features and practice of precast segmental girders by short line match method and in the light of the so-called ＂chain breaking＂ problem caused by damage to the geometric shape of the completed bridges due to the damage of the precast segmental girders, this paper presents a construction method of deck joint presetting and two-time concrete casting. The method mentioned herewith chain breaking＂, restore the geometric shape of the can effectively resolve the problem of the ＂ completed bridges and can also meet the precision requirements for erection of the segmental girders.

关 键 词：节段梁 短线法 接缝 桥梁施工 

分 类 号：U445.471[建筑科学—桥梁与隧道工程]