ANALYSIS OF PARTIALLY BRACED MULTISTOREYED BUILDING FRAMES SUBJECTED TO GRAVITY AND EARTHQUAKE LOADS

Abstract

The structure in high seismic areas may be susceptible to the severe damage. Along with gravity load structure has to withstand to lateral load which can develop high stresses. Now-a-days, shear wall in R.C.structure and steel bracings in steel structure are most popular system to resist lateral load due to earthquake, wind, blast etc.bracing is a highly efficient and economical method of resisting horizontal forces in a frame structure. Bracing is efficientbecause the diagonals work in axial stress and therefore call for minimum member sizes in providing stiffness and strength against horizontal shear. Through the addition of the bracing system, load could be transferred out of the frame and into the braces, by passing the weak columns while increasing strength.In this study R.C.C. building is modeled and analyzedfor 4-bay and 5-bay G+11 structure in three Parts viz.,