EXPERIMENTAL INVESTIGATION OF WIND PRESSURE FIELDS ON BUILDINGS WITH GABLED ROOFS HAVING DIFFERENT PITCH ANGLES


ÖZMEN Y. , BAYDAR E.

ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY, cilt.36, sa.2, ss.7-17, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Konu: 2
  • Basım Tarihi: 2016
  • Dergi Adı: ISI BILIMI VE TEKNIGI DERGISI-JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY
  • Sayfa Sayıları: ss.7-17

Özet

A wind tunnel study was carried out to investigate wind pressure distributions on the three gables roofed building models of 15 degrees, 30 degrees, and 45 degrees roof pitch and determine the effect of roof pitch on the external wind pressure. The surface pressure measurements were performed on the roofs and side walls of the building models facing a turbulent wind of 15 m/s and the values of mean and peak pressure coefficients were obtained for wind angles from 0 degrees to 360 degrees with 15 degrees increment. The pressure distributions on the roofs are significantly influenced by the roof pitch. The roof pitch of 15 degrees produces more critical suction on the roof than those of 30 degrees and 45 degrees roof pitches. The highest peak suction is experienced with 15 degrees pitched roof at the windward roof corner for the wind angle of 15 degrees. Pressure contour distributions on the building models show that wind angle of 45 degrees is more critical than wind angles of 0 degrees and 90 degrees.