International Journal of Advanced Innovative Technology in Engineering (IJAITE)

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Analysis of a Structure with Floating Columns and Shear Walls

Saloni Korate, Dr. Valsson Varghese

Abstract :

This paper presents comparative study of floating column model and non-floating column model considering the effect of seismic forces. This work includes the comparison between the floating column and non-floating column structure at different heights by using software ETABS. Now a day, we have a host of construction techniques at our disposal like Steel structures, R.C.C. structures, Core and hull type of structure (combination of steel & R.C.C construction). In modern constructions load transfer path has a great importance just in case of structural stability in very major earthquakes. There are numerous observations of damages caused by soft story, vertical or plan irregularity, floating column in buildings, such a vertical irregularity is predominant to structure while earthquake excitation. The earthquake forces developed at different floor levels in building need to be brought down along the peak to the rock bottom by the shortest path, any deviation or discontinuity like a floating column leads to poor performance of building. Shear wall systems are one among of the feasible structure and hence commonly used lateral loads resisting mechanism employed in high rise buildings. They have high plane stiffness and strength which can be utilized to simultaneously resist large horizontal loads and support gravity loads. Incorporation of shear walls has now become inevitable in multi-storey buildings so on to resist the lateral forces like seismic loads and wind loads. The aim of this work is to match the response of RC frame buildings with and without floating columns under earthquake loading and wind force. The effect of earthquake and wind forces on various building models for various parameters is proposed to be carried out with the help of response spectrum analysis. The idea is to reach a definite conclusion regarding the superiority of the different structures over one another.

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