Behaviour of R.C.C. Tall Buildings Having Different Shapes Subjected to Wind Load

Abstract—Buildings are defined as structures utilized by the people as shelter for living, working or storage. As now a days there is shortage of land for building, the vertical construction is given due importance. A designer is interested in storey wise horizontal forces for analysis and design of structural frames. Hence, emphasis is given to compute the storey wise lateral forces due to wind on building. In the present study, a 35 storeyed building of different shapes- Square, Hexagonal and Octagonal, having equal plan area and equal stiffness of the columns has been analysed. Based upon the study, it is concluded that shape of the structure plays an important role in resisting wind loads. Octagonal shaped building performed the best followed by hexagonal shaped and square shaped building. Index Terms—wind load, tall building, gust factor, square, hexagonal, octagonal I