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Seismic performance, design and placement of multiple tuned mass dampers in building applications.

机译：在建筑应用中的抗震性能，多重调谐质量阻尼器的设计和放置。

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摘要

Extensive investigations have indicated that tuned mass dampers (TMD) are not very effective for seismic applications. One of the reasons is that both the fundamental and higher vibration modes may play important roles in the seismic responses of building structures while the conventional single TMD tuned to the fundamental mode has little effect on the responses of higher modes.; In this study, a multiple tuned mass damper (MTMD) scheme that can control the responses of multiple modes simultaneously is proposed to improve the seismic performance of TMDs. The emphasis is placed on how MTMD are distributed between the vibration modes and installed at various floors of a building structure so that the floor acceleration can be significantly reduced and the potential damage to non-structural components in the building can be minimized. A practical yet reasonably accurate procedure for optimal placement of mass dampers in building structures is developed. The effectiveness of MTMD is verified with a ¼-scale, 3-story frame structure. Numerical simulations on the seismic responses of the frame structure are in good agreement with the experimental results. Both the theoretical and experimental investigations have shown that MTMD systems are superior to a single TMD in terms of the reduction of floor acceleration. Shake table tests have confirmed that the proposed procedure gives rise to a sub-optimal design and placement of MTMD systems. In addition, the decoupling criteria for primary-secondary systems are also studied as a supplement to the study of TMD systems.
机译：大量研究表明，调谐质量阻尼器（TMD）在地震应用中不是很有效。原因之一是基本振动模式和较高振动模式都可能在建筑结构的地震响应中起重要作用，而传统的单个TMD调谐到基本振动模式对较高模式的响应影响很小。在这项研究中，提出了一种可同时控制多种模式响应的多重调谐质量阻尼器（MTMD）方案，以提高TMD的抗震性能。重点放在MTMD如何在振动模式之间分配以及如何安装在建筑结构的各个楼层上，以便可以显着降低地板加速度，并可以最大程度地减少对建筑物中非结构组件的潜在损害。开发了一种实用而合理的方法，用于在建筑结构中最佳放置质量阻尼器。 MTMD的有效性通过1/4层的3层框架结构进行了验证。框架结构地震响应的数值模拟与实验结果吻合良好。理论和实验研究均表明，MTMD系统在降低地板加速度方面优于单个TMD。振动台测试已经证实，所提出的程序导致了MTMD系统的次优设计和放置。此外，还对初次-二次系统的去耦标准进行了研究，作为对TMD系统研究的补充。

著录项

  • 作者

    Wu, Jingning.;

  • 作者单位

    University of Missouri - Rolla.;

  • 授予单位 University of Missouri - Rolla.;
  • 学科 Engineering Civil.
  • 学位 Ph.D.
  • 年度 2000
  • 页码 228 p.
  • 总页数 228
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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