| 引用本文: | 杨维国,马伯涛,宋毛毛,王树,孙新阳,王萌,葛家琪.大跨度楼盖结构在运动荷载下的振动性能[J].哈尔滨工业大学学报,2016,48(6):64.DOI:10.11918/j.issn.0367-6234.2016.06.010 |
| YANG Weiguo,MA Botao,SONG Maomao,WANG Shu,SUN Xinyang,WANG Meng,GE Jiaqi.Vibration characteristic of large span floor structure under moving load[J].Journal of Harbin Institute of Technology,2016,48(6):64.DOI:10.11918/j.issn.0367-6234.2016.06.010 |
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| 大跨度楼盖结构在运动荷载下的振动性能 |
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杨维国1,马伯涛2,宋毛毛2,王树2,孙新阳1,王萌1,葛家琪2
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(1.北京交通大学 土木建筑工程学院, 100044北京;2. 中国航空规划设计研究总院有限公司, 100120北京)
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| 摘要: |
| 为研究人员运动荷载下大跨度楼盖的振动特性，以内蒙古伊旗全民健身体育中心大跨度张弦梁楼盖体系为背景，采用生物力学测力平台进行人员行走、跑步、跳跃、起立等运动荷载实测和相关分析研究.考虑可能出现的各种运动荷载工况，对大跨度张弦梁楼盖区振动开展有限元分析和现场实测.分析表明：行走、跑步及跳跃荷载工况下，人员动力放大系数分别约为1.2、2.4及4.9，大跨度楼盖在人员运动荷载数值模型激励下，所得有限元分析结果与现场实测竖向加速度峰值及理论计算值吻合较好.
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| 关键词: 大跨度钢结构 楼盖 人员运动荷载 振动 有限元分析 |
| DOI：10.11918/j.issn.0367-6234.2016.06.010 |
| 分类号:TU393.3; TU311.3 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(6,1)；中国航空规划设计研究总院有限公司资助项目(技13研-51). |
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| Vibration characteristic of large span floor structure under moving load |
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YANG Weiguo1, MA Botao2, SONG Maomao2, WANG Shu2, SUN Xinyang1, WANG Meng1, GE Jiaqi2
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(1.School of Civil Engineering, Beijing Jiaotong University, 100044 Beijing, China; 2.China Aviation Planning and Design Institute Co., Ltd.,100120 Beijing, China)
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| Abstract: |
| To explore vibration characteristic of large span floor structure under moving load, based on the large span beam string floor structure of the National Fitness Center in Ejin Horo Banner, Inner Mongolia, the loading measurement and analysis of walking, running, jumping and standing up were conducted by using biomechanical force measuring platform. Considering all kinds of possible load condition, the finite element analysis (FEA) and field measurement were performed for vibration of large span beam string structure floor area. The results show that the dynamic magnification factor of walking, running and jumping is 1.2, 2.4 and 4.9 respectively. The FEA results of large-span floor vertical acceleration induced by pedestrian load excitation are in good agreement with field measurement results and theoretical calculation values.
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| Key words: large span steel structure floor pedestrian load vibration finite element analysis |
