钢结构人行天桥异常振动专项分析  

Specific Analysis on Abnormal Vibration of Steel Structure Pedestrian Bridge

作　　者：杨平 Yang Ping(Shanghai Tongfeng Engineering Consulting Co.,Ltd.,Shanghai 200444,China)

机构地区：[1]上海同丰工程咨询有限公司,上海200444

出　　处：《建筑与装饰》2023年第14期158-160,共3页Construction & Decoration

摘　　要：本文以某钢结构人行天桥项目为具体实例,首先简要介绍工程案例的基本概况,然后通过对桥梁进行外观检测、主梁竖向模态测试、静载试验的阐述,深入分析钢结构人行天桥异常振动产生的具体原因,能够为后期同类型桥梁在检测及养护过程中存在类似病害时进行合理处置提供参考。Taking a steel structure pedestrian bridge project as a specific example,this paper first briefly introduces the basic overview of the project case,and then analyzes the specific causes of abnormal vibration of the steel structure pedestrian bridge through the description of appearance inspection,vertical modal test of main beam and static load test of the bridge,which can provide a reference for reasonable disposal of similar diseases in the detection and maintenance process of the same type of bridge.

关 键 词：钢箱梁 刚度 模态 共振 

分 类 号：TU3[建筑科学—结构工程]