EFFECT OF STEEL BRACING ON VERTICALLY IRREGULAR R.C.C BUILDING FRAMES UNDER SEISMIC LOADS

Karthik. K. M, Vidyashree. D

Abstract: Earthquakes are one of the most life threatening, environmental hazardous and destructive natural phenomenons that causes shaking of ground. This result in damage to the structures, hence we need to design the buildings to withstand these earthquakes which may occur at least once in the life time of the structure. Structures possess less stiffness and strength in case of irregular configured frames; to enhance this, lateral load resisting systems are introduced into the frames. In this study, G+5 storey building model has been analyzed considering different types of vertical geometric irregularities and steel bracings using pushover analysis with the help of ETABS 9.7 software. Addition of X type brace, V type Brace and Inverted V/K type brace shows that use of X-type of bracing is found more suitable to enhance the performance of the irregular buildings.

Keywords: pushover analysis, vertical irregularity, steel bracings, performance point

DOI: https://doi.org/10.15623/ijret.2015.0406014