低高度铁路混凝土梁横向加固技术研究  

A Technical Study of the Transverse Strengthening of Low-height Concrete Girders for Railways

作　　者：张大峰 

机构地区：[1]中铁十五局集团第一工程有限公司,山西侯马043018

出　　处：《国防交通工程与技术》2003年第3期36-38,共3页Traffic Engineering and Technology for National Defence

摘　　要：针对既有线上双片式并置无横向联结的低高度铁路钢筋混凝土梁,论述了桥梁在列车提速后产生的横向刚度不足等问题,提出了加固方案和相应的关键技术,以满足铁路提速运营后的安全性和舒适度要求。With the dual low-height reinforced concrete girders without cross ties of the existing railways taken into account, the paper deals with the insufficiency of the transverse rigidity of the bridges after trains being accelerated,on the basis of which it suggests a few strengthening plans and key corresponding techniques so as to enable our railways to meet the requirements of safety and comfort in post-acceleration.

关 键 词：铁路混凝土梁 横向加固 列车提速 横向刚度 非预应力加固 预应力加固 锚固钢筋施工 孔位放样 模板工程 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]