COMPARATIVE ANALYSIS OF R.C.C. AND COMPOSITE STRUCTURES WITH DIFFERENT VERTICAL IRREGULARITIES

Abstract

Overall development of the country is based on the infrastructural development. Hence for the construction, nowadays RC structures are being replaced with steel-concrete composite structure due to their structural efficiency which also include cost and time efficiency. During an earthquake, damage occurs due to the discontinuities in the structure. Discontinuities are caused by the presence of irregularities in the structure. Irregular structures are highly vulnerable to seismic forces. Hence structures with different irregularities must be analysed for their performance under seismic force. In this paper, different vertical irregularities such as stiffness, mass and geometric irregularities are analysed for both RC and composite structure.10 storey RC and steel-concrete composite structure are modelled and analysed using response spectrum method in ETABS 2015. On comparison, steel-concrete composite structures with different vertical irregularities perform better than irregular RC structures.