DESIGN AND ANALYSIS OF WIND AND EARTHQUAKE LOADS ON TALL BUILDINGS

Abstract

Now a day’s many tall structures and high rise towers are being built all around the globe .Wind plays a critical position in design of tall structures because of its dynamic nature. The effect of wind is predominant on tall structures depending on location of the structure, height of the structure. In this paper equivalent static method is used for evaluation of wind loads on buildings with various ratios. The aspect ratio may be various with the aid of changing number of bays. Aspect ratio 1, 2, 3 were considered for present research. The analysis is accomplished the usage of STAAD PRO. The high rise building with a long lifetime may be exposed to one or more extreme peril. Traditionally; specifications individually treated the multiple extreme hazards according to controlling load case. Thus, the ability of high rise buildings designed by the current codes to face the combined threats of earthquake and wind is rather imprecise. This paper presents a multihazard-based framework to assess the damage risk of high rise buildings which can be broken into three parts: the modelling of hazards and the damage probability computation. Modern tall buildings have efficient structural systems, and utilize high-strength materials, resulting in reduced building height, and thus, become more slender and flexible with low damping. These flexible buildings are very sensitive to wind excitation and earthquake load causing discomfort to the building occupants.