客货共线铁路连续梁支座病害整治技术  

Treatment Technology of Continuous Girder Bearing Diseases of Mixed Passenger and Freight Railway

作　　者：李东昇 李国清 和江 苏永华 臧晓秋 曹志峰 孙明德 LI Dongsheng;LI Guoqing;HE Jiang;SU Yonghua;ZANG Xiaoqiu;CAO Zhifeng;SUN Mingde(Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Tieke Shougang Technology Co.Ltd.,Beijing 102206,China;Xinyun Engineering Co.Ltd.of China Railway First Group Co.Ltd,Xianyang Shaanxi 712000,China)

机构地区：[1]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081 [2]北京铁科首钢轨道技术股份有限公司,北京102206 [3]中铁一局新运工程有限公司,陕西咸阳712000

出　　处：《铁道建筑》2020年第12期26-29,共4页Railway Engineering

基　　金：中国国家铁路集团有限公司科技研究开发计划(J2019G001)。

摘　　要：针对纵向活动盆式支座方向安装错误的病害,以客货共线某连续梁桥5#,6#墩的盆式支座为例,通过对比分析2种病害整治方案,选用支座改造方案,即切除现有支座的纵向限位装置,支座变为多向活动支座,并在同一墩顶两支座间新增横向限位装置,以满足支座原设计的横向限位功能。对横向限位装置和对应的支承垫石进行单独设计,制定施工方案,改造后的支座工作状态良好。Aiming at the diseases of wrong installation direction of longitudinal movable pot bearings,taking the potbearing of 5#and 6#piers of continuous bridge on mixed passenger and freight railway as an example,the treatmentscheme of bearing reconstruction was proposed by comparing and analyzing two disease treatment schemes.Thelongitudinal restrainer of the existing bearing is cut off,the bearing is changed into a multi-directional movable bearing,and a transverse restrainer is added between the two bearings on the same pier top to meet the transverse restrainfunction of the original design of the bearing.The transverse restrainer and the corresponding bearing pad stone aredesigned separately,and the construction scheme is formulated.The transformed bearing works well.

关 键 词：铁路桥梁 盆式支座 病害整治 限位装置 支承垫石 

分 类 号：U443.36[建筑科学—桥梁与隧道工程]