COMPARATIVE STUDY OF WIND EFFECTS ON A G+25 TALL BUILDING FOR DIFFERENT ASPECT RATIOS

Abstract

xThe rapid increase in the population in developing countries such as India has an acute shortage of land and space. To get rid of all these problems, people have resorted to multi-story or tall buildings both for commercial as well as for residential purposes. As the weight of the building increases wind flow is an important consideration for the designers. Tall building considering categories like relative height, proportion, and structural design. Under the Relative height categories, we call a building is tall depending upon the height relative to the surrounding structures. Most importantly from the structural design point of view, those buildings which are subjected to gravity loads are not considered as tall buildings only those which are additionally subjected to lateral loads like wind loads, etc. are referred to as tall buildings. But when we go higher wind excitation becomes one of the most precarious forces acting on the surface of the structure and if the plan geometry is irregular Also direction of wind plays a very vital role in the behavior of the structure. In this Research study the various types of the aspect ratios of the building and the effect of wind forces on the building and also we study about, 5 building models having different Horizontal Aspect ratios viz. 0.25, 0.5, 1, 1.5, 2 and height of the building is 78m. The results like displacement, storey drift, base shear, time period, frequency, shear force, bending moment, torsion are studied under various aspect ratios as per wind load analysis.