Comprehensive and Detailed Explanation From Exact Extract:
As building height increases, wind pressures acting on the building surfaces increase because wind speed generally increases with elevation due to reduced friction from ground features (A).
Additionally, taller buildings experience larger lateral displacements (drift), requiring more complex structural systems and stiffer frames to control excessive drift for occupant comfort and structural safety (E). This requirement significantly increases structural costs.
Dead load (B) and live load (D) increase with stories but do not increase exponentially or primarily affect wind resistance costs.
Snow and rain loads (C) mostly affect the roof, not height-related wind loads.
Choice of cladding materials (F) impacts cost but is not a primary reason for exponential wind resistance cost increases.
[References:, , ARE 5.0 PPD – Environmental Conditions and Context, Structural Wind Design, , The Architect’s Handbook of Professional Practice, 15th Edition – Wind Loads and Structural Costs, ]
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