TMD减小人行天桥人致振动的研究

英文篇名：Research on Reducing Vibration Response of Pedestrian Bridge Apllied to TMD
中文刊名：特种结构
英文刊名：Special Structures
作者：伍定一 ; 陈浩军
英文作者：Wu Dingyi Chen Haojun College of Bridge and Structure Engineering ; Changsha University of Science & Technology ; 410072
中文关键词：人致荷载 ; 人行天桥 ; TMD ; 共振 ; 振动控制
英文关键词：Human-induced load ; Pedestrian bridge ; TMD ; Resonance ; Vibration control
出版日期：2009-01-15
机构：长沙理工大学桥梁与结构工程学院;
年：2009
期：01
出版单位：特种结构

摘要

本文通过对一大跨钢结构人行天桥进行减振设计,表明采用STMD和MTMD都能有效地减少人行天桥的共振响应;而后分析了安装TMD后人行天桥的动力特性变化,指出设计时要特别注意安装TMD后在行人的行走频率范围内可能引起的新的共振。
Based on the vibration control design for a large-span steel pedestrian bridge,it is shown that both STMD and MTMD can effectively reduce the pedestrian bridge resonant response.And then,the change of Flyover's dynamic characteristics after the TMD has been installated was analyzed.Meanwhile the designer should pay special attention to a new resonance caused in the pedestrian walk frequency range.

引文

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