VERTICAL IRREGULAR RC BUILDING SEISMIC ANALYSIS WITH STIFFNESS & SETBACK

The distribution of stiffness, strength, and mass in both vertical horizontal orientations affects how well a high rise structure performs during powerful earthquake events. A building is considered irregular if there difference between the adjoining storeys. performance behavior regular G+10 reinforced concrete (RC) buildings under seismic loading are main topics current study. In this study, stiffness setback, two types abnormalities, taken into consideration. Response spectrum analysis (RSA) used to conduct on total eight normal structures. It possible get several reactions, including storey displacement, drift, overturning moment, shear force, stiffness. These replies have been compare differences outcome suggests that stiff construction with uneven setbacks causes instability stress. RC construction, proportional quantity advantageous regulate instability. Keyword: Setback, Vertical irregularity, Storey drifts, analysis.