五跨飞燕式钢管混凝土系杆拱桥刚度评估方法研究  

Research on Stiffness Evaluation Method for Five Span Fly-bird-type Concrete Filled Steel Tube Tied Arch Bridge

作　　者：楼旦丰 陈勇[2] 吴涛[2] LOU Danfeng;CHEN Yong;WU Tao

机构地区：[1]浙江树人学院城建学院,浙江杭州310015 [2]上海市建筑科学研究院有限公司,上海200032

出　　处：《上海公路》2023年第4期58-62,116,I0010,共7页Shanghai Highways

基　　金：“十三五”国家重点研发计划项目(2017YFC0806105);浙江省基础公益研究计划项目(LGG20E080007)。

摘　　要：飞燕式钢管混凝土系杆拱桥受力构件多,结构体系复杂,故对运营阶段的桥梁进行刚度评估存在一定难度。现以绍兴市曹娥江袍江大桥为例,针对该桥在日常运营中出现的振动过大、振感明显等问题,进行分析研究。通过对结构缺陷和病害的分析,对大桥进行有限元建模分析和荷载试验。通过桥面线形测试、动挠度测试和振型分析,对袍江大桥整体刚度进行了有效评估,为后续加固改造提供依据。The fly-bird-type concrete filled steel tube tied arch bridge has many load-bearing components and a complex structural system,making it difficult to evaluate the stiffness of the bridge during operation.Taking the Cao'e River Paojiang Bridge in Shaoxing City as an example,this paper analyzes and studies the problems of excessive vibration and obvious vibration sensation in the daily operation of the bridge.The finite element modeling analysis and load testing on the bridge was obtained by analyzing structural defects and diseases.The overall stiffness of the Paojiang Bridge was effectively evaluated through bridge deck alignment testing,dynamic deflection testing,and vibration analysis,providing a basis for subsequent reinforcement and renovation.

关 键 词：挠度测试 动挠度测试 有限元分析 刚度评估 

分 类 号：U448.225[建筑科学—桥梁与隧道工程]