Numerical investigations of Effective parameters on multi-story building having inclined supporting foundations
DOI:
https://doi.org/10.23918/eajse.v10i1p6Keywords:
Multi-story RC Building, SAP2000, Seismic, Inclined Foundations, l-Centro 1940 EarthquakeAbstract
This study deals with the use of finite element analysis to study the response of an RC building that has inclined supporting leads in the foundations. Several RC buildings were studied to evaluate the seismic performance of these buildings under the influence of change in three parameters (the degree of inclination of the foundations (0°, 10°, 20° & 40°), the storey number (8, 10, 12, 16 & 20 storey), and the span length (4, 5 & 6 m)). All buildings were analyzed using the SAP2000 software using the time history analysis method under the influence of the EL-Centro N-S 1940 earthquake acceleration record. The results were shown the values of the base shear, time period and roof displacements decreased by 23%, 33% and 55% respectively, when the degree of foundation inclination of the building increased from 0° to 20°, while these values increased by 68%, 53.28% and 137.6% respectively, when the No. of stories increased by 50%. The increase of base shear due to increase the height of building, also the increase lateral displacements of the buildings. The increases in time period due to decrease the stiffness of RC building and it have more displacements at tip of buildings.
References
[1] R. M. Thejaswini, L. Govindarajuand, and V. Devaraj, “A numerical study on seismic characteristics of stepback buildings considering SSI effect American Journal of Engineering Research ( AJER ),” no. 12, pp. 9–15, 2020.
[2] V. S. Ambavaram, A. Muddarangappagari, A. Mekala, and R. Chenna, “Dynamic performance of multi-storey buildings under surface blast: A case study,” Innov. Infrastruct. Solut., vol. 6, no. 4, pp. 1–20, 2021, https://doi.org/10.1007/s41062-021-00585-y.
[3] P. S. Tejaswi, P. Jha, and S. Sutar, “Comparison and Seismic analysis of a seven-storeyed RC Building resting on plain and sloping ground,” vol. 9, no. 9, pp. 78–83, 2021.
[4] M. A. Gómez, E. G. Díaz-Segura, and J. C. Vielma, “Nonlinear numerical assessment of the seismic response of hillside RC buildings,” Earthq. Eng. Eng. Vib., vol. 20, no. 2, pp. 423–440, 2021, https://doi.org/10.1007/s11803-021-2029-4.
[5] S. Xiao, W. Feng, and J. Zhang, “Analysis of the effects of slope geometry on the dynamic response of a near-field mountain from the Wenchuan Earthquake,” J. Mt. Sci., vol. 7, no. 4, pp. 353–360, 2010, https://doi.org/10.1007/s11629-010-2055-6.
[6] M. Jameel, A. B. M. Saiful Islam, R. R. Hussain, S. D. Hasan, and M. Khaleel, “Non-linear FEM analysis of seismic induced pounding between neighbouring Multi-storey Structures,” Lat. Am. J. Solids Struct., vol. 10, no. 5, pp. 921–939, 2013, https://doi.org/10.1590/S1679-78252013000500004.
[7] A. Verma, P. Pal, and Y. K. Gupta, “Non-linear Dynamic Analysis of a Multi-storey Building Subjected to Earthquakes,” in Recent Trends in Civil Engineering, Springer, 2021, pp. 231–242.
[8] M. Nitya and S. Arathi, “Study on the earthquake response of a RC building with base isolation,” Int. J. Sci. Res, vol. 5, pp. 1002–1005, 2016.
[9] S. M. K. D.N. Kakde, “Influence of slope angle variation on the structures resting on Sloping ground subjected to heavy winds,” vol. 63, no. 1, 2021.
Downloads
Published
Issue
Section
License
Eurasian J. Sci. Eng is distributed under the terms of the Creative Commons Attribution License 4.0 (CC BY-4.0) https://creativecommons.org/licenses/by/4.0/
