Wind Effect on Structure

There is a general feeling among engineers that the values of the pressure exerted by the wind commonly used in the design of engineering structures are too high. The experiments on which these values are based were carried out many years ago by relatively inaccurate methods and on models not resembling actual structures. The success of modern wind-tunnel methods in the field of aeronautics suggests their use for the determination of wind pressures on models of structures. Tall and super-tall buildings are going up all over the world, notably in east and south Asia and middle-east. Advances in materials, structural design, and wind engineering ensure that these buildings meet strength and safety requirements. Modern buildings designed such that their lateral drifts under statically applied wind loads are less than some fraction of building height, may vibrate excessively during winds and cause occupant discomfort. This paper presents the effect of wind on structures.