• Title/Summary/Keyword: Super-tall building

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HFFB technique and its validation studies

  • Xie, Jiming;Garber, Jason
    • Wind and Structures
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    • v.18 no.4
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    • pp.375-389
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    • 2014

  • The high-frequency force-balance (HFFB) technique and its subsequent improvements are reviewed in this paper, including a discussion about nonlinear mode shape corrections, multi-force balance measurements, and using HFFB model to identify aeroelastic parameters. To apply the HFFB technique in engineering practice, various validation studies have been conducted. This paper presents the results from an analytical validation study for a simple building with nonlinear mode shapes, three experimental validation studies for more complicated buildings, and a field measurement comparison for a super-tall building in Hong Kong. The results of these validations confirm that the improved HFFB technique is generally adequate for engineering applications. Some technical limitations of HFFB are also discussed in this paper, especially for higher-order mode response that could be considerable for super tall buildings.

  • https://doi.org/10.12989/was.2014.18.4.375 인용 KSCI

Outrigger System Design Considerations

  • Choi, Hi Sun;Joseph, Leonard
    • International Journal of High-Rise Buildings
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    • v.1 no.3
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    • pp.237-246
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    • 2012

  • Outrigger systems have been widely used in super tall buildings constructed since the 1980's, eclipsing previously favored tubular frame systems. However, outriggers are not listed as a seismic lateral load resisting system in any code. Design guidelines are not available. The CTBUH formed the Outrigger Working Group to develop the first-ever outrigger system design guide with an historical overview, considerations for outrigger application, effects on building behavior and design recommendations including concerns specific to this structural system such as differential column shortening and construction sequence impacts. Project examples are presented for various outrigger system types, including advancements in their technology. The guide provides a basis for future discussions on this important topic.

  • https://doi.org/10.21022/IJHRB.2012.1.3.237 인용 PDF