EFFECTS OF STAIRCASE ON THE SEISMIC PERFORMANCE OF RCC FRAME BUILDINGS
Keywords:Response Spectrum Method, Staircase, Story Drift, Story Displacement
In the present paper, the effects of staircase on the seismic performance of the RCC frame buildings of
different heights and different plans have been studied. Generally, the stair model is not included in the analysis of RC
frame buildings. Due to the rigidity of inclined slab and of short columns around staircase, beams and columns are often
characterized by a high seismic demand. The identification of the weakest elements of the structure, the failure type
considering the presence of the stairs, and their contribution in the non linear performance of RC frame buildings are
some of the areas on which the present paper has presented. For analysis and design, Etab v.9 has been used.
Performances of both categories of the buildings have been evaluated through Response Spectrum Method.