COMPARITIVE STUDY OF BUILDINGS WITH VARYING HEIGHTS SUBJECTED TO SEISMIC FORCES IN DIFFERENT ZONES

T.S.D. Aishwarya
Assistant Professor, Civil Engineering Department, Vignan’s Institute Of Information Technology Duvvada,Vishakapatnam, India , IN

Y. Mounisha
Assistant Professor, Civil Engineering Department, Vignan’s Institute Of Information Technology Duvvada,Vishakapatnam, India , IN

G.Sudheer Kumar
Assistant Professor, Civil Engineering Department, Vignan’s Institute Of Information Technology Duvvada,Vishakapatnam, India , IN

Keywords: Regular buildings, STAAD.Pro, Seismic, Wind, High rise buildings.

Abstract

Buildings are generally classified as Ordinary Moment Resisting Frame (OMRF) and Special Moment Resisting Frame (SMRF) based on response reduction factor. Generally buildings consists of structural members such as slabs, beams, columns and footings, where the subjected loads are transferred between the structural members and finally transferred to the subgrade soil. the behaviour of buildings is different for different types of loadings (dead, live, wind and seismic) and these load effects also changes with respect to the building configuration parameters length, width and height. In the analysis and design of buildings usefully Indian standards codes suggest various loads combinations based on probability of occurance. there are around 42 load combinations and IS codes also suggest the lateral load (wind and seismic) acts independently but the load governing the design of structural members is to be found out. And the present study to investigate the effects of wind and seismic on buildings three structures of different heights (G+5,G+10,G+15) are considered in seismic zones II,III,IV,V where length and width of the structures is kept constant. an earthquake load is calculated as per IS 1893(PART-1)-2002 and wind pressure calculated as per IS 875-1987 (PART III).The analysis is performed using staad.pro software.

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