韶关东跨线桥动静载试验测试与分析  

Dynamic and Static Load Test and Analysis of Shaoguan East Bridge

作　　者：余晓琳[1] 陈双锐[1] 何振族[1] 颜全胜[1] 

机构地区：[1]华南理工大学土木与交通学院,广州510641

出　　处：《科学技术与工程》2013年第21期6171-6175,共5页Science Technology and Engineering

基　　金：国家自然科学基金青年科学基金项目(51208208);中央高校基本科研业务费专项资金资助(2012ZM0086);广东省公路管理局科技项目(粤公研2011-15)资助

摘　　要：为准确评价韶关东跨线桥的实际承载能力,对其进行动静载测试。分析实测桥梁应变、应力、挠度、频率等数据。得出结论:静载作用下,该桥的应力校验系数、相对残余变位满足规范要求,结构处于弹性工作阶段;动载作用下,桥梁实测固有频率大于计算值,其动力响应在正常范围内,动力性能及承载能力满足设计要求。In order to evaluate the actual bearing capacity of Shaoguan East Bridge accurately,dynamic and static load test was carried out.Through analyzing measured data such as strain,stress,deflection and frequency of the bridge,the conclusion is drawn： under the action of the static load,the stress calibration coefficient and relative residual displacement meet the specification requirements,and the structure is in elastic stage;under the action of dynamic load,the measured natural frequency is greater than the calculated value.The dynamic responses are in normal range.The dynamic performance and the carrying capacity meet the design requirements.

关 键 词：动静载试验 应变 挠度 动力性能 

分 类 号：U446.3[建筑科学—桥梁与隧道工程]