Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Comparison of Peak External Pressure Coefficients with Experiment and Wind Load Provisions

풍압실험과 풍하중 기준에 따른 피크외압계수의 비교

  • Received : 2013.09.05
  • Published : 2013.11.25
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Abstract

This study has compared the equivalent external pressure coefficients, $(GC_{pf})_{eq}$, with 6 wind load provisions and wind tunnel test data. The wind load provisions are the ASCE 7-10, NBCC 2010, AS/NZS 2011, EN 2005, AIJ 2004 and KBC 2009. Experiment data on low-rise building have been obtained at the University of Western Ontario (UWO) to contribute to the NIST aerodynamic database. For the experiment, a model with 1:12 of roof slope and 4.9 and 12.2m of eave height was used under open terrain and suburban terrain conditions. $(GC_{pf})_{eq}$ was re-normalized based on the external pressure coefficients, $GC_{pf}$, of ASCE 7-10. When compared to $(GC_{pf})_{eq}$ of the experiment data with 4.9m of eaveheight in open terrain, consequently, ASCE7-10(81%), NBCC2010 (84%), AS/NZS 2011 (70%), AIJ 2004 (68%) and KBC 2009 (53%) were all underestimated. Among them, KBC 2009 reveals the lowest value. On the contrary, EN2005 was overestimated with 122%. When the eave height was 12.2m, in addition, the same pattern was observed in most codes. EN2005 was slightly overestimated with 115%. When compared to $(GC_{pf})_{eq}$ of the experiment data in suburban terrain, in addition, the same pattern was observed in most code.

Keywords

Acknowledgement

Supported by : 한국연구재단

References

  1. T.C.E. Ho, D. Surry, D. Morrish, and G.A. Kopp, The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 1. Archiving format and basic aerodynamic data, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 93 p.p.1-30, 2005. https://doi.org/10.1016/j.jweia.2004.07.006
  2. L.M.S.Pierre, G.A.Kopp, D.Surry, and T.C.E.Ho, The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 2. Comparison of data with wind load provisions, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 93 p.p.31-59, 2005. https://doi.org/10.1016/j.jweia.2004.07.007
  3. Y. Whalen, E. Simiu, G. Harris, J. Lin, D. Surry, The use of aerodynamic databases for the effective estimation of wind effects in main wind-force resisting systems: applications to low buildings, J. WindEng. Ind. Aerodyn., 1998.
  4. G. Chiu, D. Perry, Low-rise building wind load provisions: where are we and where do weneed to go? Eng. J. FourthQuarter, 1997.
  5. John D. Holmes, WIND LOADING OF STRUCTURES, p.p.27-182, Spon press, 2004
  6. American Soiety of Civil Engineers (ASCE), ASCE Standard: Minimum Design Loads for Buildings and Other Structures: SEI-ASCE 7-10, ASCE, 2010.
  7. NRCC(National Research Council Canada): National Building Code of Canada 2010 Includes User's Guide- NBC 2010 Structural Commentaries (Part 4),National Research Council of Canada, 2010.
  8. Australian/New Zealand Standard: Australian/New Zealand Standard Structural design actions, Part 2:Wind actions-AS/NZS 1170.2:2011, Standards Australia International Ltd., 2011.
  9. European Committee for Standardization (CEN)(EN): Eurocode1:Actions on Structures-Part 1-4:General actions-Wind ActionsEN1991-1-4:2005, CEN, 2005.
  10. Architectural Institute of Japan: AIJ Recommendations for Loads on Buildings (2004Edition), Architectural Institute of Japan, 2006.
  11. 대한건축학회, 국토해양부고시 건축구조기준 및 해설, 대한건축학회, 2010
  12. EMIL SIMIU, P.E., Design of Buildings for Wind: A Guide for ASCE7-10 Standard Users and Designers of Special Structures, 2nd ed., JOHN WILEY & SONS, INC., p.p.57-63, 2011.
  13. (사)한국풍공학회, (사)한국건축구조기술사회, 엔지니어를 위한 내풍공학(Wind-Resistant Engineering, 기문당, p.p.183-260, 2010.
  14. 김영문, 윤성원 정영배, 건축물의 내풍설계, 한림원, p.p.3-12, 2002.