Wind Pressures on Buildings with Mullions
Publication: Journal of Structural Engineering
Volume 116, Issue 8
Abstract
Wind pressures on buildings may be affected by various appurtenances such as mullions or vertical ribs. The determination of the influence of these appurtenances on the wind loads on cladding and structural elements of a building is important in order to identify any modifications necessary for the provisions of wind codes of practice and design standards, and also to investigate the possibility of simplification of wind tunnel building models in the event that the simulation of appurtenances appears to be insignificant to the measured wind pressures. The paper describes an experimental study carried out in the boundary‐layer wind tunnel of the Centre for Building Studies under simulated wind‐conditions over an open country and an urban terrain. The basic model of the study represents a 60.8 m by 60.8 m square building tested at two different heights (15 m and 120 m) with one‐meter and two‐meter deep mullions attached on one wall. The experimental results indicate that, in the presence of mullions, the wind‐induced suctions increase drastically at the wall edge area for almost all geometrical and exposure configurations. Trends are similar for both mean and fluctuating wind‐induced pressures. The paper quantifies these trends and makes appropriate recommendations.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 116 • Issue 8 • August 1990
Pages: 2272 - 2291
Copyright
Copyright © 1990 ASCE.
History
Published online: Aug 1, 1990
Published in print: Aug 1990
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