大跨钢箱梁人行桥振动响应分析与MTMD减振控制OA北大核心CSTPCD
Vibration Response Analysis and MTMD Damping Control of A Long-span Steel Box Girder Footbridge
人行桥的自振频率与行人步频接近时,容易发生人桥共振,本文以一频率处于行人步频范围内的大跨钢箱梁人行桥为例,考虑了随机行走、结伴行走和跳跃等11种荷载工况,研究了各工况人行荷载激励下人行桥的竖向振动响应,并针对不满足舒适度要求的工况,采用多调谐质量阻尼器(muhiple tuned mass damper简称MTMD)对人行桥进行减振控制.结果表明,人行桥在无控状况下产生了较大的振动响应,其竖向加速度超过舒适度限值要求,而当在人行桥加装MTMD系统…查看全部>>
When the natural frequency of a footbridge is close to the frequency of pedestrians,the resonance between pedestrians and bridge could be induced by pedestrian loading.Based on the fundamental frequency of a long-span steel box girder footbridge lower than the frequency of pedestrians,this paper considered 11 kinds of load conditions,such as random walking,walking together and jumping together.Besides,the damping technique with multiple tuned mass dampers wa…查看全部>>
黄文成;张永山;汪大洋;李上伟
广州大学土木工程学院,广州510006广州大学土木工程学院,广州510006广州大学土木工程学院,广州510006广州大学土木工程学院,广州510006
人行桥人行荷载振动响应舒适度多调谐质量阻尼器
footbridgepedestrian loadingvibration responsecomfortable degreemultiple tuned mass dampers
《结构工程师》 2017 (4)
模块装配式内藏钢板-混凝土剪力墙尺寸效应与抗震机理研究
160-167,8
国家自然科学项目(51378135,51408140)教育部博士基金(20134410120003)广州市科技计划项目(201510010291,152020011)广东省教育厅(2015KTSCX108)
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