Proximity effects between two plus-plan shaped high-rise buildings on mean and RMS pressure coefficients

Document Type : Article

Authors

1 Delhi Technological University (DTU), Delhi, India

2 Faculty of Civil Engineering, DTU, Delhi, India

Abstract

Wind-induced interference effects may result in a significant increase or decrease in the wind loads on the buildings constructed in groups due to modifying wind flow around, depending on the shape and relative location of the buildings. Experimental study of wind-induced interference effects on mean and root mean square (RMS) pressure coefficients between two tall buildings are investigated in detail for various interference conditions in this study. The Interference effects on mean and RMS pressure coefficients are presented as interference factors i.e. mean interference factor (MIF) and RMS interference factor (RIF). Results show that the interference effects on local wind pressure are significantly higher on the windward side's faces near the recessed corner. The full blockage condition generates suction on walls facing the gap. The half blockage and no blockage conditions create a more severe interference effect than the full blockage. The maximum value of MIF is 4, 9 and 13 in full, half and no blockage condition, respectively. Interference effects result in reduced wind load on side faces and faces at the leeward side. Suction at side faces reduced approximately by 65% in full blockage condition. RIF’s values less than unity are observed for all interference cases.

Keywords


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