体外预应力加固铁路板梁的试验研究  

EXPERIMENTAL STUDY ON RAILWAY PLATE-GIRDER WITH THE EXTERNAL PRE-STRESSED REINFORCEMENT TECHNOLOGY

作　　者：李君君[1] 刘晓庆[2] 

机构地区：[1]石家庄铁路职业技术学院,石家庄050041 [2]石家庄铁道学院,石家庄050043

出　　处：《工业建筑》2010年第2期120-124,96,共6页Industrial Construction

摘　　要：以体外预应力加固旧桥的应用技术为研究背景,对缺少设计资料的旧板梁进行承载力试验,以试验数据为加固基础对同类型的板梁进行体外预应力加固,并对加固后的试验梁进行加固效果评定。为了进一步对加固后的试验梁进行评定,又进行了200万次的疲劳试验,对评定结果做出进一步的研究和验证。With the research project ＂study on application of external pre-stressed technology for strengthening old bridges＂ under the Railway Ministry as the background, it is conducted the test of bearing capacity of the old concrete board beams , based on the data the same sorts of beams are strengthened by external prestressing technology, on which an evaluation is done. It is further researched and identified the evaluated result by 2 million times of fatigue tests

关 键 词：体外预应力 加固 挠度 疲劳 

分 类 号：U445.72[建筑科学—桥梁与隧道工程] U446.1[交通运输工程—道路与铁道工程]