• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings of the Fifteenth international conference on civil, structural and environmental engineering computing >A Comparison of the Vibration Effects caused by City Transportation Systems on the Occupants of Buildings
【24h】

A Comparison of the Vibration Effects caused by City Transportation Systems on the Occupants of Buildings

机译：城市交通系统对建筑物占用者振动影响的比较

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper is concerned with the issue of the impact of transport vibrations on the occupants of buildings. An assessment is made using selected building vibration measurements caused by different means of city transport: a metro train in a tunnel, trams and traffic. The selected building was a multi-storey building of traditional masonry construction. Acceleration of the vibrations on the floors of upper and lower stories of the building were measured. Then the root mean square (RMS) value of the vibration acceleration in the third octave frequency bands was analyzed. This was performed to assess the impact of vibration on people comparing the results of the analysis with the limiting values specified in the standard ISO 2631-2, Guide to the evaluation of human exposure to whole body vibration. Part 2 -Vibration in buildings. In addition a finite element model of the investigated building was developed to the simulate the behaviour. Based on the results of measurements a validation of the model was carried out. As the kinematic excitation was assumed the ground level vibration of the structure of the building was obtained from the measurements. So excitation obtained was applied to the underground part of the building and a time history analysis (THA) was performed. The calculation of the effect on humans was compared with the results obtained from the measurements at the same point in the building ceiling. If the results did not differ significantly in the dominant frequency bands the model was considered to be good. So the validated model was used to estimate the impact of the transport vibrations on the people living on each floor of the building. This paper presents the results of these calculations for the prediction of the impact on people in the building vibrations generated by a metro-train in the tunnel, by tram and by traffic. The conclusions demonstrated the differences in perception by the people of vibrations caused by surface transport and underground transport. In the case of the surface transport the vibration level increases with the height of the building and the greatest impact on building occupants is on the top floor. In contrast, underground transportation produces vibrations that have the greatest impact on people living on the ground floor and on upper floors this effect decreases. Therefore, as shown in the paper, in the same building excessive impact on people on the ground floor was induced by vibrations caused by the passage of underground trains in a tunnel and on the upper floors with underground transportation the vibration was not perceived by people while the vibrations generated by tram passages are at excessive levels.
机译：本文涉及运输振动对建筑物居住者的影响问题。使用选定的建筑物振动测量值进行评估，这些振动测量值是由不同的城市交通方式引起的：地铁中的地铁，有轨电车和交通。选定的建筑物是一幢传统砌体建筑的多层建筑。测量建筑物上下两层地板上的振动加速度。然后，分析了第三个倍频程频带中振动加速度的均方根（RMS）值。这样做是为了评估振动对人的影响，将分析结果与标准ISO 2631-2（评估人体暴露于全身振动的指南）中规定的极限值进行比较。第2部分-建筑物中的振动。此外，还开发了受调查建筑物的有限元模型来模拟行为。基于测量结果，对模型进行了验证。假设运动学激励是从测量中获得建筑物结构的地面振动。因此，将获得的激励应用于建筑物的地下部分，并进行了时程分析（THA）。将对人的影响的计算结果与在建筑物天花板同一点的测量结果进行了比较。如果结果在主频带上没有显着差异，则认为该模型是好的。因此，使用经过验证的模型来估算运输振动对居住在建筑物各层的人们的影响。本文介绍了这些计算结果，以预测地铁，电车和交通对地铁列车产生的建筑物振动对人的影响。结论证明了人们对地面运输和地下运输引起的振动的感知差异。在地面运输的情况下，振动水平随建筑物的高度而增加，并且对建筑物居住者的最大影响是在顶层。相反，地下运输产生的振动对居住在一楼和上层的人的影响最大。因此，如本文所示，在同一建筑物中，地下火车在隧道中通过而引起的振动对地面层的人造成了过多的冲击，而在地下运输的高层上，人们却没有察觉到这种振动。电车通道产生的振动过大。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号