Mechanical Damping Systems for Improved Earthquake Resistance of Structures

该机构先前在这一主题上的研究结果表明，在结构响应的弹性和非弹性范围内，补充阻尼可以是减少地震期间结构的力和位移的有效手段。先前的研究工作已经确定了需要进一步研究的具体问题，然后才能被设计专业广泛应用。本研究项目建立了等效粘性阻尼可以用来表示各种阻尼装置耗能特性的条件和限制，证明了附加阻尼装置可以有效地降低多层建筑的弹性和非弹性响应。并启动建筑规范分委员会考虑在抗震设计中使用补充阻尼装置的适当规定。在这项工作中取得的结果与先前的结论相结合，将为设计专业人员接受附加阻尼作为抗震结构的宝贵替代方案提供必要的背景信息。

Results from the institution's prior research efforts on this subject have demonstrated that supplemental damping can be an effective means for reducing forces and displacements of structures during earthquakes in both the elastic and in the inelastic ranges of structural response. The prior research effort has identified specific issues requiring additional study before wide spread utilization by the design profession is possible. This research project establishes the conditions and limits whereby equivalent viscous damping can be used to represent various damping device energy dissipation characteristics, demonstrates that supplemental damping devices can effectively reduce both elastic and inelastic response of multistory buildings, and initiates building code subcommittee consideration of appropriate provisions for utilitization of supplemental damping devices in earthquake resistant design. The results achieved in this effort in combination with previous conclusions will provide the background information necessary for acceptance by the design profession of added damping as a valuable alternative for earthquake resistant construction.