摘要
文章以某大桥柔性桥塔结构环境振动测试为例,阐述了桥塔结构环境振动测试的一般步骤和技术细节,并采用时域随机子空间识别方法(SSI)对桥塔动力特性(振动模态参数)进行了识别分析。经验证,识别分析结果与理论计算值能较好吻合。
6Taking the environmental vibration test on one flexible bridge tower structure as example,the article discusses the general procedure and technical detail of this test and also per-forms recognition analysis on bridge tower dynamic characteristics(vibration model index) by using random sub space identification(SSI).It shows that the analysis result is almost identical to the theoretical value.
出处
《西部交通科技》
2011年第12期49-52,共4页
Western China Communications Science & Technology
基金
河南省交通运输厅科研项目(2009Z029)
关键词
桥塔结构
环境振动
测试
识别
Bridge tower structure
Environmental vibration
Test
Identification