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A Comparison between Linear and Equivalent Linear Ground Response Analysis of the Sub-Soil of Ganakbari, Dhaka, Bangladesh

Authors: Raqib Al Mahmood; A. S. M. Fahad Hossain; Md. Munirul Islam;

A Comparison between Linear and Equivalent Linear Ground Response Analysis of the Sub-Soil of Ganakbari, Dhaka, Bangladesh

Abstract

{"references": ["Govindaraju L.; Ramana, G. V.; Hanumantharao, C.;Sitharam, T. G.Site-specific ground response analysis(1354). Current Science.2004.87(10).", "Haque, M. E., Sayem, Hossain, M. S. and Kamal, Mostafa, (2013) Assessment of Some Engineering Geological Aspects of the Sub-soil of Ganakbari, Dhaka, Bangladesh. Jahangirnagar University Environmental Bulletin, ISSN: 23043326.2013.2:61-70p", "Hashash YMA, Grohalski DR, Philips CA. Recent advances in nonlinear site response analysis. 5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and SoilDynamics.2010.4. Sandiego California", "Hashash, Y.M.A., Musgrove, M.I., Harmon, J.A., Groholski, D.R., Phillips, C.A., and Park, D. (2016) DEEPSOIL 6.1, User Manual.", "Mahmood, R. A., Hossain, A. S. M. Fahad. Site Response Analysis of the Sub-Soil of Ganakbari, Dhaka, Bangladesh. (IOSR-JMCE), e-ISSN: 2278-1684, p-ISSN: 2320324X.12.3(II):147-152p.", "Marto, A. Tan, C.S., and Leong, T. K. Universal correlation of shear wave velocity and standard penetration resistance. Electronic Journal of Geotechnical Engineering, 18 M:2727-2738p.", "Kumar, S.S., Dey, A.&Krishna, A.M. Equivalent linear and nonlinear ground response analysis of two typical sites at Guwahati city.Proceedings of Indian Geotechnical Conference IGC-2014, December 18-20, 2014, Kakinada, India.", "Hossain, A S M Fahad; Ansary, M. A.Shear Wave Velocity as a Function of Standard Penetration Number and Depth in Dhaka City, Bangladesh. IOSR Journal of Mechanical and Civil Engineering\" (IOSR-JMCE);e-ISSN: 2278-1684, p-ISSN: 2320334X,2015.12(3):Ver. II:31-37p.", "Hossain, A S M Fahad; Adhikari, T. L.;Ansary, M. A. and Bari, Q. H. Characteristics and Consequence of Nepal Earthquake 2015: A Review.Geotechnical Engineering Journal of the SEAGS & AGSSEA. December 2015.46(4). ISSN 00465828.", "Hossain, A S M Fahad; Ansary, M. A. Ps Logging for Site Response Analysis in Dhaka City\" in \"The AUST Journal of Science and Technology. (ISSN 2072-0149); January 2014 and July 2014 (Published in May 2017).6(1,2)."]}

Site-specific dynamic response analysis is the key step to ensure site safety against probable seismic hazards. One-dimensional(1-D) ground response analysis is widely used in engineering practices to predict the dynamic response of a site. This paper deals with the comparison of two frequency-dependent methods of 1-D ground response analysis-Linear and Equivalent Linear for ground response analysis of the sub-soil of Ganakbari, Savar, Dhaka. SPT N values were collected from the literature published earlier by various researchers. Shear wave velocity was determined by using a universal correlation of Shear wave velocity and Standard Penetration Test values.[6]. Analyses were performed using DEEPSOIL software for both linear and equivalent linear methods. As input motion, Kobe earthquake, Kocaeli earthquake, Northridge earthquake, Nahanni Earthquake, and Parkfield earthquake was used. The Response spectrum, the Peak Ground Acceleration, maximum strain, maximum stress ratio, and the amplification factor was determined and represented in this paper from both linear and equivalent linear analysis. Linear analysis results were compared with those of the equivalent linear method. Differences were found between the site responses predictions from linear and equivalent linear methods though both are 1-D frequency domain-based analysis methods.

Keywords

Linear Analysis, Equivalent Linear Analysis, SPT N; Shear Wave Velocity; PSA; PGA, Amplification Factor, http://hbrppublication.com/journals.html

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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