[1]李强,单美弟,黄铭枫,等.钢桁架人行天桥的振动实测分析与舒适度评价[J].深圳大学学报理工版,2015,32(1):89-95.[doi:10.3724/SP.J.1249.2015.01089]
　Li Qiang,Shan Meidi,Huang Mingfeng,et al.Field measurement-based pedestrian-induced vibration analysis and comfort evaluation of a steel truss footbridge[J].Journal of Shenzhen University Science and Engineering,2015,32(1):89-95.[doi:10.3724/SP.J.1249.2015.01089]
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钢桁架人行天桥的振动实测分析与舒适度评价()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第32卷
期数:
2015年第1期
页码:
89-95
栏目:
土木建筑工程
出版日期:
2015-01-20

文章信息/Info

Title:
Field measurement-based pedestrian-induced vibration analysis and comfort evaluation
of a steel truss footbridge
文章编号:
201501012
作者:
李强1; 2; 单美弟2; 黄铭枫1; 陈驹1; 冯鹤1
1）浙江大学结构工程研究所，杭州310058
2）浙江中烟工业有限责任公司，杭州310058
Author(s):
Li Qiang 1; 2;  Shan Meidi 2;  Huang Mingfeng 1;  Chen Ju 1;  and Feng He1
1) Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, P.R.China
2) China Tobacco Zhejiang Industrial Co., Ltd, Hangzhou 310058, P.R.China
关键词:
结构工程; 人行天桥; 现场实测; 人行振动; 阻尼识别; 有限元分析; 振动舒适度
Keywords:
structural engineering;  footbridge;  field measurement;  pedestrian-induced vibration;  damping identification;  finite element analysis;  vibration serviceability
分类号:
TU 973+.32
DOI:
10.3724/SP.J.1249.2015.01089
文献标志码:
A
摘要:
对连接2栋建筑净跨度达45 m的某曲线型钢桁架人行天桥展开现场人行振动加速度响应实测，得到了在各种行走和跳跃工况下人行天桥加速度响应的现场实测数据.基于希尔伯特-黄变换，对人行天桥结构的动力特性，包括自振频率和结构阻尼，进行了有效识别.利用有限元软件建立了该人行天桥结构有限元模型，分析天桥结构在行人荷载激励条件下的动力响应.对实测数据和数值分析结果进行比对，数值分析结果基本符合现场实测数据.最后，结合国内外规范对该天桥的人行舒适度进行了合理评价.
Abstract:
We carried out a field measurement on the pedestrian-induced vibration of a steel truss footbridge connecting two buildings with a curved planar shape and a net span up to 45 m. Based on the Hilbert-Huang transformation, we effectively identified the dynamic properties of the footbridge, i.e., natural frequencies and damping ratios. We established the finite element mode of the footbridge. The finite element analysis results agree well with those of the field measurements. We also accessed the vibration serviceability of the footbridge using the domestic and international standards currently available.

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备注/Memo

备注/Memo:
Received：2014-07-29；Accepted：2014-11-13
Foundation：National Natural Science Foundation of China (51008275); Ministry of Transport Technology Project (2011318223170)
Corresponding author：Associate professor Huang Mingfeng．E-mail: mfhuang@zju.edu.cn
Citation：Li Qiang，Shan Meidi，Huang Mingfeng，et al．Field measurement-based pedestrian-induced vibration analysis and comfort evaluation of a steel truss footbridge［J］. Journal of Shenzhen University Science and Engineering, 2015, 32(1): 89-95.（in Chinese）
基金项目：国家自然科学基金资助项目(51008275)；交通运输部科技资助项目(2011318223170)
作者简介：李强(1991—)，男(汉族)，浙江省奉化市人，浙江大学博士研究生．E-mail：liqiangkimi@zju.edu.cn
引文：李强，单美弟，黄铭枫，等．钢桁架人行天桥的振动实测分析与舒适度评价［J］. 深圳大学学报理工版，2015，32（1）：89-95.
更新日期/Last Update: 2015-01-05