| 多层选煤厂房的受振层楼板振动分析 |
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| 引用本文： | 冯军和,张敏政,闫维明.多层选煤厂房的受振层楼板振动分析[J].地震工程与工程振动,2007,27(2):99-103. |
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| 作者姓名： | 冯军和 张敏政 闫维明 |
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| 作者单位： | 1. 北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100022
2. 中国地震局,工程力学研究所,黑龙江,哈尔滨,150080 |
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| 摘 要： | 非设备层楼板的振动问题是工程中一种易发的振动事故,本文就多层选煤厂的非设备层楼板振动问题进行了研究,探讨了楼板振动产生的机理。文中提出了非设备层楼板振动分析的两步骤法:(1)通过对局部楼板有限元模型的模态分析,来定性判断楼板是否在设备的共振区,从而对楼板是否出现共振进行初步判断;(2)采用结构-设备复合系统三维动力有限元分析模型,对非设备层楼板的动力响应进行分析。实际工程算例的分析证明了该方法的有效性和合理性,该方法为选煤厂的非设备层的楼板振动研究提供了思路。最后,本文对多层选煤厂的非设备层楼板的设计提出了一些参考建议。
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| 关 键 词： | 多层选煤厂房 非设备层振动 有限元 |
| 文章编号： | 1000-1301（2007）02-0099-05 |
| 修稿时间： | 2006-08-152007-01-25 |
Dynamic analysis of floor without machine in multi-story coal preparation factory building |
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| FENG Junhe,ZHANG Minzheng,YAN Weiming.Dynamic analysis of floor without machine in multi-story coal preparation factory building[J].Earthquake Engineering and Engineering Vibration,2007,27(2):99-103. |
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| Authors: | FENG Junhe ZHANG Minzheng YAN Weiming |
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| Institution: | 1. Beijing Lab of Earthquake Engineering and Structural Retrofit,Beijing University of Technology, Beijing, 100022 ,China; 2. Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China |
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| Abstract: | The vibration frequently arises in the floors without equipment,the reason and mechanism of floor vibration were analyzed.Two methods to analyze the floor vibration were presented: the first was modal analysis of partial floor model and the second was adopting the 3-D dynamic model of the whole structure-equipment complex system.The analysis of a multi-story coal preparation building showed the rationality and validity of the methods.Finally,some advices were given to the design of the floor without machine. |
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| Keywords: | multi-story coal preparation building vibration of floor without machine finite element |
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