铁路桥梁模态参数测试方法的探讨  

Study of Modal Parameter Testing Methods for Railway Bridges

作　　者：刘汉夫[1] 

机构地区：[1]铁道科学研究院铁道建筑研究所,北京100081

出　　处：《世界桥梁》2007年第3期59-61,共3页World Bridges

摘　　要：述评目前铁路桥梁模态参数实测中的技术现状,对其所涉及的规范条文、关键技术及方法的可靠性、适用性展开讨论。强调信号处理所必须遵循的求实、客观原则及动测问题的复杂性与专业性。对今后的改进提出建议。This paper gives comments on the state-of-the-art of modal parameter testing of railway bridges, discusses the reliability and adaptability of the provisions in the relevant specifi- cations, the key techniques and methods involved in the modal parameter testing and also stresses the principles of truth and objectivity that must be followed in the signal processing, the complexity and specialty of dynamic testing. Eventually, the paper makes proposals for improvement of the modal parameter testing in the future.

关 键 词：铁路桥 频谱分析 振动模态 模态参数 桥梁检测 

分 类 号：U448.13[建筑科学—桥梁与隧道工程] U446.2[交通运输工程—道路与铁道工程]