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Seismic response control of a building complex utilizing passive friction damper : analytical study

机译:利用被动摩擦阻尼器控制建筑群的地震响应:分析研究

摘要

Control of structural response due to seismic excitation in a manner of coupling adjacent buildings has been actively developed, and most attention focused on those buildings of similar height. However, with the rapid development of some modern cities, multi-story buildings constructed with an auxiliary low-rise podium structure to provide extra functions to the complex become a growing construction scheme. Being inspired by the positively examined coupling control approach for buildings with similar height, this paper aims to provide a comprehensive analytical study on control effectiveness of using friction dampers to link the two buildings with significant height difference to supplement the recent experimental investigation carried out by the writers. The analytical model of a coupled building system is first developed with passive friction dampers being modeled as Coulomb friction. To highlight potential advantage of coupling the main building and podium structure with control devices that provide a lower degree of coupling, the inherent demerit of rigid-coupled configuration is then evaluated. Extensive parametric studies are finally performed. The concerned parameters influencing the design of optimal friction force and control efficiency include variety of earthquake excitation and differences in floor mass, story number as well as number of dampers installed between the two buildings. In general, the feasibility of interaction control approach applied to the complex structure for vibration reduction due to seismic excitation is supported by positive results.
机译:由于地震激励而引起的结构响应的控制已得到积极发展,其方式是将相邻建筑物耦合在一起,并且大多数注意力集中在高度相似的建筑物上。然而,随着一些现代城市的快速发展,以辅助低层裙楼结构建造的多层建筑为建筑群提供了额外的功能,这成为一种日益增长的建筑方案。受到积极研究的相似高度建筑物的耦合控制方法的启发,本文旨在就使用摩擦阻尼器将两个高度相差较大的建筑物连接起来的控制效果提供全面的分析研究,以补充该机构最近进行的实验研究。作家。首先用被动摩擦阻尼器建模为库仑摩擦来开发耦合建筑系统的分析模型。为了突出将主建筑和讲台结构与提供较低耦合程度的控制设备耦合的潜在优势,然后评估了刚性耦合配置的固有缺点。最后进行了广泛的参数研究。影响最佳摩擦力和控制效率设计的相关参数包括各种地震激励以及地板质量,层数以及两座建筑物之间安装的阻尼器数量的差异。一般而言,积极的结果支持了将相互作用控制方法应用于复杂结构以减少地震激励引起的振动的可行性。

著录项

  • 作者

    Ng CL; Xu YL;

  • 作者单位
  • 年度 2006
  • 总页数
  • 原文格式 PDF
  • 正文语种 eng
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