Dynamic Response of Tall Building with Base Isolation Subjected to Earthquake Forces
Budhi Ram Chaudhary1, Gurpreet Singh2
1Budhi Ram Chaudhary, M.E. Student, Department of Civil Engineering, Chandigarh University, Mohali, Punjab, India
2Gurpreet Singh, Assistant Professor, Department of Civil Engineering, Chandigarh University, Mohali, Punjab, India
Manuscript received on November 14, 2019. | Revised Manuscript received on 23 November, 2019. | Manuscript published on December 10, 2019. | PP: 4157-4166 | Volume-9 Issue-2, December 2019. | Retrieval Number: B6501129219/2019©BEIESP | DOI: 10.35940/ijitee.B6501.129219
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In the fast-paced contemporary world, new inventions with rapid construction techniques came across usually built to resist the lateral forces. Among them, the demand for tall buildings has put a revolutionary impact on society. In this study, base isolation as an earthquake resisting design technique was utilized which substantially dissociate a superstructure from its substructure and increase flexibility resisting on the ground vibration areas by providing the different types of base isolators. Lead rubber bearing (LRB) isolator is a passive structural vibration control technique. In this research study, seismic behaviour of tube in tube system steel tall building in square, circular, hexagonal, and octagonal plan configurations with varying frame sections with and without LRB base isolation was analyzed for the comparative analysis on the basis of base shear, overturning moment, time period, storey displacement, storey drift and storey acceleration according to IS 1893 (part 1):2016 and UBC 1997 Earthquake code in E-TABS software by non-linear time history analysis. From the results, Octagonal shape was found to be the best option for tall buildings whereas the hexagonal shaped building showed poor performance during an earthquake.
Keywords: Lead Rubber Bearing (LRB) Isolator, time History Analysis, Base Shear, Overturning Moment, Lateral Displacement, Storey Drifts, Model Period, Storey Acceleration.
Scope of the Article: Earthquake Engineering