Determination of Pressure Coefficients for High Rise Buildings of Different Aspect Ratios

Determination of Pressure Coefficients for High Rise Buildings of Different Aspect Ratios

The Structural Engineering Institute (SEI) of ASCE is pursuing the update and simplification of the 2016 edition of ASCE 7 Minimum Design Loads and Associated Criteria for Buildings and Other Structures approach to wind design. The pressure coefficients for the Main Wind-Force Resisting System (MWFRS) in chapter 27 of ASCE 7-16 for buildings above 60 ft date from the mid-1970s. While tweaks have been made over the years, a systematic study using modern wind tunnel test methods for code-based design has not been conducted in over 40 years. In particular, our knowledge of both the role of turbulence on aerodynamic loading and the turbulence levels in the atmospheric boundary layer have evolved considerably over this time period. As a result of these factors, the ASCE 7-22 Wind Loads Sub-Committee wishes to review and possibly update the chapter 27 MWFRS wind load coefficients. This research is to obtain additional test data so as to provide information for other height aspect ratios, where the height ratio is defined as the height of the building to the least horizontal dimension.

  • Grant Details

    Project
    Determination of Pressure Coefficients for High Rise Buildings of Different Aspect Ratios
    Grantee
    Structural Engineering Institute | ASCE
    Category
    Performance-Based Design
    Subcategory
    Wind
    Grant #
    04-19
    Award Amount
    $20,000
    Grant Period
    May 2019 - October 2019
    Grant Status
    Complete
    Principal Investigators
    Don Scott, P.E., S.E., F.SEI, F.ASCE
    Industry Champions
    ASCE 7-22 Wind Loads Sub-Committee
    CPF Allies
    ASCE-SEI, NCSEA
    Supporters
    CPP Wind Engineering & Air Quality Consultants; Degenkolb Engineers; Gilsanz Murray Steficek LLP; Hatfield Group; KPFF; LERA Consulting Structural Engineers; Magnusson Klemencic Associates Foundation; Nabih Youssef Associates Structural Engineers; National Council of Structural Engineers Associations; Odeh Engineers, Inc.; PCS Structural Solutions; Peter A. Irwin, Ph.D., P.Eng.; Silman; Glenn and Judy Bell; Skidmore, Owings & Merrill; Structural Focus; Walter P Moore and Associates, Inc.
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