• Chandrashekhar B. Gawalkar
• Sanjay K. Bhadke

The importance of earthquake engineering is an emerging field in India ever since high rise structures have become popular. Owing to the ever increasing population & limited space, horizontal expansion is no more a feasible solution especially in big cities & the consultants & civic authorities are compelled to option for vertical development. Thus the effect of lateral loads like winds loads & earthquake forces is acquiring increasing importance and almost every structural designer is faced with the problem of providing adequate strength and stability against lateral loads. High rise reinforced concrete buildings need more attention and more concern while designing so that in case of high winds or any earthquake event they can stand with a lesser amount of damage. For this reason, in recent years, wind and earthquake loadings have become determining factors in high-rise building design. While designing the model of building we can calculate the analytical result and from that result we accordingly design different component of building. These are foundation, column, slab, RCC wall, water tank, staircase etc. Out of this staircase generally not modeled Stair use is essential component of any building the purpose of which is to allow the flow of traffic to be accommodated between floor levels within the building. Staircase is the part of secondary system of the structure and it is one of the essential parts of a building because of its functional importance. Staircase when compared to the modern escalators serves not only better in emergency conditions (such as fire escapes, natural disaster etc.) but also provides considerable stiffness to the building. Due to complex modeling of staircase, it is designed separately for non-seismic and seismic forces. But during earthquake as we construct the structure with staircase monolithically, staircase also contribute its performance to the building, due to this structural discontinuity, performance of buildings may result in non-linear behavior. Because of this non-linear behavior, modification in various seismic parameters such as time period and story drift of the building is essential. It can be concluded that the effect of staircase in analysis and design of RC frame buildings cannot be ignored.

Staircase, RC frame, Model, earthquake.

"Parametric Study of Seismic Effect on R.C.C. Structure Considering with And Without Staircase Model at Multiple Location", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.298-303, May-2019, Available :http://www.jetir.org/papers/JETIR1905239.pdf

"Parametric Study of Seismic Effect on R.C.C. Structure Considering with And Without Staircase Model at Multiple Location", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp298-303, May-2019, Available at : http://www.jetir.org/papers/JETIR1905239.pdf