Peak gust pressures acting on the roof and wall edges of a low-rise building

Yasushi Uematsu, Nicholas Isyumov

Research output: Contribution to journalConference articlepeer-review

26 Citations (Scopus)

Abstract

Wind-induced pressures were measured simultaneously at many points on wind tunnel models, typical of simple low-rise buildings, in two kinds of turbulent boundary layers, which simulated the natural winds over typical open-country and suburban terrains. Special attention is paid to the spatial and temporal characteristics of the pressures near the roof and wall edges. This paper presents the results for (i) variation of the instantaneous pressure distribution with time, during a time period which captures the occurrence of the maximum observed suction; (ii) statistical characteristics of the pressure fluctuations; and (iii) effects of the time and spatial averaging on the magnitude of the effective minimum pressures. Based on the results, an empirical formula for estimating the minimum pressure coefficients, using a peak factor approach, has been developed. Quasi-steady theory is applied to evaluate the RMS pressure coefficients. The relation between the spatial and time averages is also discussed.

Original languageEnglish
Pages (from-to)217-231
Number of pages15
JournalJournal of Wind Engineering and Industrial Aerodynamics
Volume77-78
DOIs
Publication statusPublished - 1998 Sep 1
EventProceedings of the 1997 8th US National Conference on Wind Engineering - Baltimore, MD, USA
Duration: 1997 Jun 51997 Jun 7

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering

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