| 步行荷载作用下楼板振动响应分析 |
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| 引用本文： | 王益鹤,杨娜.步行荷载作用下楼板振动响应分析[J].北方交通大学学报,2014(1):103-106. |
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| 作者姓名： | 王益鹤 杨娜 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京100044 |
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| 基金项目： | 国家自然科学基金资助项目（50938008）;中央高校基本科研业务费专项资金资助（2012JBM007,2012YJS078） |
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| 摘 要： | 根据步行荷载曲线,采用APDL参数化语言编程,模拟单人步行,着重数值分析步行荷载特性,比较不同傅立叶级数项对结构响应的不同贡献,讨论其合理的计算取值;并研究不同步行频率作用下,楼板振动响应的规律.结果表明：合理选取傅立叶级数项,对步行荷载作用下楼板振动响应的正确评估至关重要.楼板振动响应的大小,主要取决于步行频率与楼板基频之间的关系.
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| 关 键 词： | 振动 大跨度楼板 步行荷载 加速度响应 傅立叶级数 |
Response analysis of floor vibration to walking loads |
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| WANG Yihe,YANG Na.Response analysis of floor vibration to walking loads[J].Journal of Northern Jiaotong University,2014(1):103-106. |
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| Authors: | WANG Yihe YANG Na |
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| Institution: | 1.School of Civil Engineering, Beijing Jiaotong University, Beijing 100044,China;) |
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| Abstract: | Based on the typical walking loads,the characteristics of the load time history which is expressed in the Fourier series model are analyzed by APDL programming.Then the dynamic response is examined based on the contribution of different Fourier terms.The number of terms of Fourier series which should be considered is discussed according to the significance of the resulting response of floor vibration to walking loads.And the response of floor under person walking across it at various walking rates is considered.The results show that selecting the appropriate terms of Fourier series to express the walking loads is important when evaluating the response.The critical response is dependent on the relationship between the floor＇s fundamental frequency and the walking frequency. |
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| Keywords: | vibrations long-span floor walking loads acceleration response Fourier coefficients |
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