朔黄铁路双柱式轻型桥墩动载试验与强化改造方案研究  

Dynamic loading test research for light double-column piers of bridge on Shuozhou-Huanghuagang railway and its strengthening and reconstructing scheme

作　　者：肖祥淋[1] 蔡超勋[1] 朱希同 马宏亮[1] 赵海军[2] 

机构地区：[1]中国铁道科学研究院铁道建筑研究所,北京100081 [2]朔黄铁路发展有限责任公司,河北肃宁062350

出　　处：《铁道建筑》2015年第2期1-4,共4页Railway Engineering

基　　金：国家科技支撑计划项目(2013BAG20B00)

摘　　要：对朔黄铁路上行线(重车线)上两座双柱式轻型桥墩(温塘河特大桥与崧杨岔河大桥)的动力性能进行了实测,测得了两座桥梁在试验列车作用下的动力响应。试验结果表明:温塘河特大桥及崧杨岔河大桥双柱式轻型桥墩实测墩顶横向振幅偏大,横向刚度偏弱,应尽快对振动过大的双柱式轻型桥墩进行强化改造。同时提出了3种强化改造方案,宜结合桥梁大修计划实施。T he dynamic performance of light double-column piers of bridge on heavy haul line was tested on W entanghe bridge and Songyangchahe bridge on Shuozhou-Huanghuagang railway. T he dynamic response of the two bridges under test train operation was measured. T he test results indicated that the lateral vibration amplitude at the top of the piers w as relatively large,and the lateral stiffness w as relatively w eak. T he corresponding strengthening and rehabilitation shall be conducted. T hree strengthening and rehabilitation plans w ere proposed. It is suggested that these plans be carried out with consideration of the bridge maintenance plan.

关 键 词：朔黄铁路 双柱式轻型桥墩 动载试验 横向刚度 横向振幅 

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