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Seismic behavior of tall building structures by friction damper

机译:高层建筑结构的减震器抗震性能

摘要

Large-magnitude long-distance earthquakes generated from Sumatra have significant potential engineering implications in Singapore and Malaysia Peninsula due to accentuation by resonance in buildings. Historical seismicity data of the region covering the past 100 years shows numerous occasions when low-intensity seismic waves reached Peninsular and hence no seismic provisions have been incorporated into building regulations to date. If part of input energy due to earthquake could be dissipated through special devices which can be easily be replaced, as necessary, after an earthquake, the structural damage could be reduced. These devices can be classified into three categories: viscous and viscoelastic dampers, metallic dampers, and friction dampers. The purpose of this study is to evaluate the seismic behavior of tall building structures by friction damper. The finite element modeling technique (SAP2000 Software) is used in this study to learn the behavior of structure equipped by friction dampers. Three different methods of analyzing (Free vibration, Response spectrum, and Time History analysis) have been done to achieve this purpose. In general, this study indicates that the response of structure such as story drifts, axial load of columns and beams, shear load and bending moment of beams, and base shear can be dramatically reduced by using friction damper devices. In addition, this study indicates that the seismic risks due to large-magnitude, long-distance earthquakes generated from Sumatra should be considered for the tall buildings in Malaysia and the application of the seismic retrofitting to existing buildings is much needed to safeguard structure from external peak ground acceleration intensity.
机译:苏门答腊岛产生的大距离长距离地震在新加坡和马来西亚半岛具有重大的潜在工程意义,原因是建筑物中的共振会加剧地震。该地区过去100年的历史地震活动数据显示,低强度地震波到达半岛的情况很多次,因此至今尚未将地震规定纳入建筑法规。如果地震产生的部分输入能量可以通过特殊的设备消散,并且可以在地震发生后根据需要轻松更换,则可以减少结构损坏。这些装置可分为三类:粘性和粘弹性阻尼器,金属阻尼器和摩擦阻尼器。这项研究的目的是通过摩擦阻尼器评估高层建筑结构的抗震性能。本研究使用有限元建模技术(SAP2000软件)来学习摩擦阻尼器配备的结构的行为。为了达到此目的,已经完成了三种不同的分析方法(自由振动,响应谱和时程分析)。总体而言,这项研究表明,通过使用摩擦阻尼装置,可以大大降低结构的响应,例如层错,柱和梁的轴向载荷,梁的剪切载荷和弯矩以及基础剪力。此外,这项研究表明,马来西亚的高层建筑应考虑到苏门答腊岛发生的大地震,长距离地震引起的地震危险,并且非常需要对现有建筑物进行地震改造以保护结构免受外部影响地面加速度峰值强度。

著录项

  • 作者

    Shoushtari Abdollah Vaez;

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  • 年度 2010
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  • 原文格式 PDF
  • 正文语种 {"code":"en","name":"English","id":9}
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