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Paper Title :
Comparative Seismic Study on Strengthening of Floating Column Building Using Bracings

Author :Allacheruvu Raghavendra, T.Appa Reddy, G.N.Sreekanth

Article Citation :Allacheruvu Raghavendra ,T.Appa Reddy ,G.N.Sreekanth , (2016 ) " Comparative Seismic Study on Strengthening of Floating Column Building Using Bracings " , International Journal of Advances in Mechanical and Civil Engineering (IJAMCE) , pp. 65-71, Volume-3,Issue-5

Abstract : In present modern construction technology, floating column is becoming a typical feature for multistory buildings in urban India. Such practices are highly undesirable in buildings built in seismically active areas. Due to this floating column the moments in columns, storey drifts, storey shears and other factors tends to increase which leads to strength reduction in structures. This study emphasizes about recognizing the presence of floating column in multistoried buildings and how to reduce the risk factor of earthquake effects by strengthening the floating columns building with Bracings. In this present study four models are used namely, ‘Model 1 (G+9 Normal RC Building)’, ‘Model 2 (G+9 RC Floating column Building)’, ‘Model 3 (G+9 RC Floating column Building with Bracings at corner)’, ‘Model 4 (G+9 RC Floating column Building with Bracings at centre)’. Seismic analysis is carried out on all four models using Equivalent static method and Response spectrum method in two zones (III, V) respectively. Comparison of results Storey shears, Storey Drifts, Maximum Displacement, Time period and Base shear for all four models are executed. As the Model 4 throw in better results compared to other Models, its performance is reviewed using pushover analysis and the performance levels are discussed by comparing Model 4 with Model 3. This seismic assessment is executed using ETABS software as per the code book IS:1893-2002. Index Terms— Bracings, Equivalent Static Method, ETABS Software, Floating Column, Pushover Analysis, Response Spectrum Analysis, Seismic Analysis.

Type : Research paper


Copyright: © Institute of Research and Journals


Author - Allacheruvu Raghavendra, T.Appa Reddy, G.N.Sreekanth

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