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Effect of Column Discontinuity at Top Floor Level on Structure

Author : Kabade P P and Shinde D N

Pages : 2784-2787
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Structural engineer’s greatest challenge in today’s scenario is constructing seismic resistant structure. Uncertainties involved and behavior studies are vital for all civil engineering structures. The presence of vertical irregular frame subject to devastating earthquake is matter of concern. A G+3 vertically irregular building is modeled as 3D space frame for the analysis with discontinuous column at top floor. To response parameters like base shear, storey displacement of the structure under seismic force under the linear dynamic & non linear static analysis is studied. This analysis shows focuses on the base shear carrying capacity of a structure and performance level of structure under moderate zone of India. The result remarks the conclusion that, a building structure with irregularity produced due to column discontinuity provides instability and increases storey displacement, and drift at discontinuous level but reduces the base shear. The soft computing tool and commercial software SAP 200 (version 15) is used for modeling and analysis.

Keywords: Column discontinuity, Response spectrum, Pushover analysis, Storey Displacement, interstorey drift, Base shear

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.4 (Aug- 2014)



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