大跨径连续刚构桥动静载试验研究  

Study on Dynamic and Static Load Test for the Long-span Continuous Rigid Frame Bridge

作　　者：郑一峰[1] 孙赛赛 ZHENG Yifeng;SUN Saisai(College of Construction Engineering,Jilin University,Changchun,Jilin 130026,China)

机构地区：[1]吉林大学建设工程学院,吉林长春130026

出　　处：《施工技术》2020年第S01期1187-1190,共4页Construction Technology

摘　　要：桥梁的动静载试验是检测桥梁结构安全性的重要方法,可准确地评定桥梁结构的承载能力和实际工作状态。漫江大桥为新建预应力混凝土大跨径连续刚构桥,为检验其施工质量与结构受力性能,确定工程的可靠性,对该桥进行了动静载试验研究。测试桥梁结构在动静载试验条件下的挠度、应变及动力特性参数,并与设计理论值进行对比分析,结果表明该桥承载能力、刚度及工作性能均符合设计要求和正常的使用要求。The dynamic and static load test on bridges is an important method to detect the safety of bridge structures,which can accurately evaluate the carrying capacity and the actual working state of bridge structures.In order to test the construction quality and structural mechanical performance of Man jiang bridge,a new long-span continuous rigid frame and prestressed concrete bridge,the dynamic and static load test is carried out on the bridge by testing the deflection,strain,dynamic characteristic parameters under the load conditions and comparing them with the theoretical results.The results suggest that the carrying capacity,stiffness and working performance of the bridge meet the requirements of the design and the normal functions.

关 键 词：动静载试验 承载能力 大跨径连续刚构桥 挠度 应变 动力特性参数 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]