Effect of the Presence of Basements on the Vibration Period and Other Seismic Responses of R.C. Frames
The soil-structure interaction (SSI) of R. C. building frames including basements below ground level has been the subject of extended research, mostly in the form of theoretical dynamic analysis. There are different issues concerned with this type of work, as e.g. the location of the base of the structure. Usually, the base of the structure in dynamic analysis or according to the codes is the level at which the lateral displacement is zero. According to this definition, and with the presence of basement floors and the soil mass below, the ground level may not be the base of the structure. The soil stiffness around basement walls has a great effect on the lateral displacement of the basement floor. Another issue is the effect of the presence of the basement floors on the dynamic behavior of the structure. A third issue is the effect of the soil around the basement walls and the soil mass below the foundation in general, which is known as the SSI. In this paper, 3-dimensional regular building frames subjected to seismic loading are analyzed using SAP2000 software. The first frame is a 5-floor, 3-D frame without including the soil mass below the raft foundation and without a basement floor. The second frame is the same frame with a basement floor and with consideration of the soil mass below the raft foundation and around the walls of the basement floor. The third frame is the same frame with consideration of the soil mass below the raft foundation but without the basement floor. Results of the seismic time history analysis and UBC97 response spectrum analysis are presented and discussed.
Keywords:soil-structure interaction, soil stiffness, basement floor, seismic analysis, period of vibration, time history analysis, response spectrum analysis
D. J. Kelly, “Location of Base for Seismic Design”, Structure Magazine, Vol. 2009, No. 12, pp. 8-11, 2009
B. Raghava Maheedhar, M. Arun Kumar, S. Nagarjuna, C. V. Siva Rama Prasad, “Analysis and Design of g+12 storey building with shear wall effect with two basements”, International Research Journal of Engineering and Technology, Vol. 5, No. 5, pp. 396-401, 2018
N. Caglar, S. Sert, M. S. Imbabi, A. H. Serdar, “The Effect of a Basement Story on the Earthquake Response of RC Buildings Constructed on Soft Surface Soil”, 3rd International Symposium On Innovative Technologies In Engineering And Science, Valencia, Spain, June 3-5, 2015
N. Chandran, A. P. Rajan, S. Syed, “Seismic Analysis of Building with Underground Stories Considering Soil Structure Interaction”, International Journal of Emerging Technology and Advanced Engineering, Vol. 4, No. 11, pp. 112-117, 2014
M. Arun Kumar, B. Raghava Maheedhar, G. Janakiram Goud, “Comparative Study on Analysis and Design of G+12 Stories Building With and Without Basement Walls of Two Basements”, International Journal of Engineering and Techniques, Vol. 4, No. 2, pp. 240-245, 2018
J. Sravani, V. A. Reddy, “Earthquake Analysis of High Raised RC Framed Building by Response Spectrum Method”, International Journal of Trend in Research and Development, Vol. 4, No. 1, pp. 580-585, 2017
H. Turkia, N. Lahbari, “A Analytical Model For Vibration Period With SSI Of R/C Structures”, IOSR Journal of Mechanical and Civil Engineering, Vol. 12, No. 2, pp. 110-120, 2015
R. C. Ravi Kumar, S. Sameer, P. Sandeep Reddy, “A Study on the Behavior of a Multi-Storied Building With Soil-Structure Interaction”, ARPN Journal of Engineering and Applied Sciences, Vol. 11, No. 23, pp. 13760-13765, 2016
O. Bogdan, D. M. Ghiocel, D. Cretu, “Seismic-Soil-Structure Interaction (SSI) Effects For a Different Type of Buildings in Dense Urban Area”, Second European Conference on Earthquake Engineering and Seismology, Istanbul, Turkey, August, 25-29, 2014
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