ANALYSIS OF RCC STRUCTURE BASED ON RACKING WALLS & BASE ISOLATION
Journal Title: PARIPEX-Indian Journal of Research - Year 2017, Vol 6, Issue 2
Abstract
Many vibration-control measures like passive, active, semi-active and hybrid vibration control methods have been developed. Passive vibration control keeps the building to remain essentially elastic during large earthquakes and has fundamental frequency lower than both its fixed base frequency and the dominant frequencies of ground motion. Base isolation is a passive vibration control system. The results of the free vibration analysis like time period, frequency, mode shape and modal mass participating ratios of the framed structure were found out. From modal analysis the first mode time period of fixed base building is found to be 0.56 sec whereas the first mode period of isolated building is found to be 3.11s (approximately 6 times the fixed-base period!). This value is away from the dominant spectral period range of design earthquake. Forced vibration analysis (non-linear time history analysis) was done to determine the response of framed structures and to find out the vibration control efficiency of framed structures using lead rubber bearing.
Authors and Affiliations
Er. Avinash Yadav, Er. P. C. Diwan
Keywords
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