DOI QR코드

DOI QR Code

Wind pressure provisions for gable roofs of intermediate roof slope

  • Published : 2001.04.25

Abstract

The paper addresses the suitability of wind pressure coefficients specified in contemporary design standards and codes of practice for gable roofs of intermediate slope (roof angle $10^{\circ}-30^{\circ}$). In a recent research study, a series of low building models with different roof slopes in this intermediate range were tested in a boundary layer wind tunnel under simulated open country terrain conditions. This was different from the original study in the 70's, which produced the current provisions on the basis of a model tested only for a single roof slope (4:12) in this range. The results of the study suggest that a modification to the American wind provisions would be warranted to make them more representative of the true local and area-averaged wind loads imposed on gable roofs of intermediate slope.

References

  1. Davenport, A.G., D. Surry and T. Stathopoulos (1977) "Wind loads on low rise buildings: Final report of phases I and II, BLWT-SS8-1977". Univ. of Western Ontario, London, Ontario, Canada.
  2. Holmes, J.D. (1981) "Wind pressures on houses with high pitched roofs", Wind Engrg. Report 4/81, Dept. of Civ. & Sys. Engrg., James Cook Univ. of North Queensland, Townsville, Queensland, Australia.
  3. Hoxey, R.P. and P. Moran (1983) "A full-scale study of the geometric parameters that influence wind loads on low rise buildings", J. Wind Engrg. & Ind. Aerodyn. 13, 277-288. https://doi.org/10.1016/0167-6105(83)90149-6
  4. Meecham, D., D. Surry and A.G. Davenport (1991) "The magnitude and distribution of wind-induced pressures on hip and gable roofs", J. Wind Engrg. & Ind. Aerodyn. 38, 257-272. https://doi.org/10.1016/0167-6105(91)90046-Y
  5. NBCC 1995. National Building Code of Canada and Commentaries, IRC, NRC, Ottawa, Canada.
  6. Peterka, J.A. (1983) "Selection of local peak pressure coefficients for wind tunnel studies of buildings", J. Wind Engrg. & Ind. Aerodyn. 13, 477-488. https://doi.org/10.1016/0167-6105(83)90166-6
  7. Richardson, G.M. and D. Surry (1991) "Comparison of wind-tunnel and full-scale surface pressure measurements on low-rise pitched-roof buildings", J. Wind Engrg. & Ind. Aerodyn. 38, 249-256. https://doi.org/10.1016/0167-6105(91)90045-X
  8. AS 1170.2 (1989) Minimum design loads on structures (known as the SAA loading code), Part 2: Wind loads. Standards Australia, Standard House, 80 Arthur St, North Sydney NSW, Australia.
  9. ASCE 7-98. Minimum Design Loads for Buildings and other Structures. Structural Engineering Institute of ASCE, Reston, VA, USA.
  10. Case, P.C. and N. Isyumov (1998) "Wind loads on low buildings with 4:12 gable roofs in open country and suburban exposures". J. Wind Engrg. & Ind. Aerodyn. 77 & 78, 107-118.

Cited by

  1. Wind tunnel test study on the wind pressure coefficient of claddings of high-rise buildings vol.5, pp.4, 2011, https://doi.org/10.1007/s11709-011-0128-4
  2. An experimental study of flow fields and wind loads on gable-roof building models in microburst-like wind vol.54, pp.5, 2013, https://doi.org/10.1007/s00348-013-1511-9
  3. Air flow around isolated gable-roof buildings with different roof pitches: Wind tunnel experiments and CFD simulations vol.84, 2015, https://doi.org/10.1016/j.buildenv.2014.11.012
  4. DPIV study of the effect of a gable roof on the flow structure around a surface-mounted cubic obstacle vol.37, pp.3, 2004, https://doi.org/10.1007/s00348-004-0830-2
  5. Characterization of the wind loads and flow fields around a gable-roof building model in tornado-like winds vol.51, pp.3, 2011, https://doi.org/10.1007/s00348-011-1102-6
  6. Post Windstorm Evaluation of Critical Aspects Causing Damage to Rural Houses in the Northern Region of Peninsular Malaysia vol.103, 2017, https://doi.org/10.1051/matecconf/201710303016
  7. Uncertainties in the Estimation of Local Peak Pressures on Low-Rise Buildings by Using the Gumbel Distribution Fitting Approach vol.142, pp.11, 2016, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001556
  8. Wind Pressures on 4∶12-Sloped Hip Roofs of L- and T-Shaped Low-Rise Buildings vol.144, pp.7, 2018, https://doi.org/10.1061/(ASCE)ST.1943-541X.0002077