• Mya Mya Aye
• PATHIPATI NARASIMHARAO

From past earthquake it is observed that if the structures are not properly analyzed and constructed with the required quality, then it may lead great destruction and loss to human lives. It is proved that many of structure are totally or partially damaged due to earthquake. So it is necessary to determine seismic response of such buildings. There are different techniques of seismic analysis of structure. Among them time history analysis is one of the most important techniques for structural seismic analysis generally the evaluated structural response in non linear in nature. In this project work seismic analysis of multistoried building with mass irregularity at different floor level are carried out. Here a G+12 stories building with mass irregularity has been modeled for seismic analysis. In this thesis design of structure for this building is carried out by using ETABS software and computer-aided analysis. One regular building and three irregular buildings are compared. They have same plan size but mass irregularity is considered at 6th floor, 8th floor and 10th floor of the building. The stability checking such as storey drift, overturning moment and sliding are also checked in the building with static analysis and also with dynamic analysis (time history analysis). And then, after the models with and without change of mass and inter-storeyed height are being analyzed, structural response (storey drift, storey shear and storey moment) and member forces are compared.

Seismic Responses, Seismic Demands, Time History Analysis, Mass Irregularity, Storey Drift, Storey Shear, Storey Displacements, Story Moments, ETABS.

"SEISMIC ANALYSIS OF MULTISTORIED RCC BUILDING DUE TO MASS IRREGULARITY BY TIME HISTORY ANALYSIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 12, page no.1121-1126, December 2017, Available :http://www.jetir.org/papers/JETIR1712157.pdf

"SEISMIC ANALYSIS OF MULTISTORIED RCC BUILDING DUE TO MASS IRREGULARITY BY TIME HISTORY ANALYSIS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 12, page no. pp1121-1126, December 2017, Available at : http://www.jetir.org/papers/JETIR1712157.pdf