Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
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Analysis of Peak Wind Pressure Coefficients of Penetration Type and End Type Pilotis

관통형과 단부형 필로티 천장부의 피크풍압계수 특성 분석

  • You, Jang-Youl (College of Architecture Engineering, Songwon Univ.) ;
  • Kim, Geun-Ho (College of Architecture Engineering, Chonbuk National Univ.) ;
  • Chae, Myung-Jin (School of Engineering & Technology, Department of Engineering, Central Connecticut State Univ.) ;
  • Kim, Young-Moon (College of Architecture Engineering, Chonbuk National Univ.) ;
  • You, Ki-Pyo (College of Architecture Engrg., Chonbuk National Univ., Long-span Steel Frame System Research Center)
  • 유장열 (송원대학교 건축공학과) ;
  • 김근호 (전북대학교 건축공학과 대학원) ;
  • 채명진 ;
  • 김영문 (전북대학교 건축공학과) ;
  • 유기표 (전북대학교 건축공학과, 장경간철골구조농촌시설물연구센터)
  • Received : 2018.03.22
  • Accepted : 2018.04.17
  • Published : 2018.06.15
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Abstract

Various pilotis are installed in the lower part of high rise buildings. Strong winds can generate sudden airflow around the pilotis, which can cause unexpected internal airflow changes and may cause damage to the exterior of the piloti ceiling. The present study investigates the characteristics of peak wind pressure coefficient for the design of piloti ceiling exteriors by conducting wind pressure tests on high rise buildings equipped with penetration-type and end-type pilotis in urban and suburban areas. The minimum peak wind pressure coefficient for penetration-type piloti ceilings ranges from -2.0 to -3.3. Minimum peak wind pressure coefficient in urban areas was 30% larger than in suburban areas. In end-type piloti ceilings, maximum peak wind-pressure coefficient ranges from 0.5 to 1.9, and minimum peak wind-pressure coefficient ranges from -1.3 to -3.6. With changes in building height, peak wind pressure coefficient decreases as the aspect ratio increases. Peak wind-pressure coefficient increases with taller pilotis. On the other hand, when piloti height decreases, the absolute value of the minimum peak wind pressure coefficient increases.

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References

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