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INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT (IJNRD)
An International Open Access Journal |   ISSN: 2456-4184 |  IMPACT FACTOR: 5.57

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Paper Title: Seismic analysis of high rise (RCC) structures with Mass Irregularity
Authors Name: VASEEM M.SHIRORE , Prof.A.N.Shaikh
Author Reg. ID:
IJNRD_180140
Published Paper Id: IJNRD1807015
Published In: Volume 3 Issue 7, July-2018
Abstract: This is a rapid urbanization era, in future there will be scarcity of land for agriculture, Industrial and residential purpose due to increase in population. This is the reason why high rise building has come in picture in last some decades. Sometime due to different architectural shape buildings in different shapes has been constructed, sometimes due to ventilation and light requirement setback buildings are used. Such shapes of building leads to generate Stiffness, Plan and strength irregularity in building. Some time at higher floor heavy masses such as swimming pool, Library or heavy machinery generates mass irregularity in building. Increase in mass at a storey causes to generate higher inertial force at the time of earthquake which leads to higher storey displacement and higher forces in member. The effect of mass irregularity is more when there is greater difference in masses of adjacent floors and vice versa. From past earthquake it has been observed that mass irregularity has dominating effect in collapse of building in high seismic zone. Therefore it is necessary to study the effect of mass irregularity in buildings. In this work a 13 storey building having mass irregularity at different level has been considered. Total 13 models has been prepared in ETABS out of which one model has regular mass distribution and other 5 models has heavy mass situated at 2nd , 4th, 6th, 8th , 10th and 12th storey respectively. A mass ratio of 2.5 and 5.0 has been considered and all the buildings are modeled in ETABS. Buildings has been designed by IS 456 and IS1893 and linear static, nonlinear static and response spectrum analysis has been done. Results in the form of Storey shear, Storey drift, Time period, capacity curve and performance point has been evaluated and compared. Finally conclusion has been made by observing the obtained results
Keywords: Mass Irregularity, Irregularity, Nonlinear Static Analysis, Mass ratio etc.
Cite Article: "Seismic analysis of high rise (RCC) structures with Mass Irregularity", International Journal of Novel Research and Development (www.ijnrd.org), ISSN:2456-4184, Vol.3, Issue 7, page no.81-89, July-2018, Available :http://www.ijnrd.org/papers/IJNRD1807015.pdf
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