摘要
介绍一种相对简单而实用的基于环境激励的预应力混凝土梁桥模态测试分析方法,该方法仅用于结构的动态响应信号作频谱分析即可获得模态频率、振型、阻尼等主要模态参数,处理速度快,并且结果直观可靠。通过对尖山大桥的实桥测试,测试结果表明该方法应用于工程实际是完全可行的。
A kind of prestressed concrete beam bridge modal test analysis method based on environmental incentives is introduced in this article,which is not only relatively simple but practical.The modal parameters such as modal frequency、formation and damping etc are only available by using the dynamic response of the structure for spectrum analysis,through the practical test results of Jianshan bridge,it shows that this method is completely applied in engineering practices.
出处
《交通科技与经济》
2012年第1期5-9,共5页
Technology & Economy in Areas of Communications
基金
国家自然科学基金资助项目(51078306)
关键词
环境激励
混凝土连续梁桥
模态试验
environmental incentive
continuous beam bridges
experimental modal analysis
