Strategies for adopting new trends in wind load evaluation On structures

Abstract

The advancement of knowledge of wind engineering introduces lots of changes to wind loading standards. There are many differences in old codes of practices compare to the newer standards by means of factors, methods and ultimately wind induced forces in structural members. Since tall buildings are more susceptible for wind loads and thus, require more close consideration when they are designed for wind loads. In this study, five major wind loading standards, CP 3 Chapter V – Part 2:1972, BS 6399.2:1997, AS 1170.2:1989, AS/NZS 1170.2:2002 and EN 1991-1-4:2005 are compared with respect to the CP 3 Chapter V – Part 2, for designing of a 183 m tall building. From one standard to another, factors like basic wind speeds, terrain height multiplier and procedures like analysis methods are different because of strategies set by the conditions and requirements of the country of its origin. The serviceability limit state behaviour of tall building is equally important like ultimate limit state behaviour and hence it discussed with this paper by the means of drift index and along and cross wind accelerations.