Commenced in January 2007
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Effects of Ground Motion Characteristics on Damage of RC Buildings: A Detailed Investigation

Authors: M. Elassaly

Abstract:

Damage status of RC buildings is greatly influenced by the characteristics of the imposed ground motion. Peak Ground Acceleration and frequency contents are considered the main two factors that affect ground motion characteristics; hence, affecting the seismic response of RC structures and consequently their damage state. A detailed investigation on the combined effects of these two factors on damage assessment of RC buildings is carried out. Twenty one earthquake records are analyzed and arranged into three groups, according to their frequency contents. These records are used in an investigation to define the expected damage state that would be attained by RC buildings, if subjected to varying ground motion characteristics. The damage assessment is conducted through examining drift ratios and damage indices of the overall structure and the significant structural components of RC building. Base and story shear of RC building model, are also investigated, for cases when the model is subjected to the chosen twenty one earthquake records. Nonlinear dynamic analyses are performed on a 2-dimensional model of a 12-story RC building.

Keywords: Seismic, Ground Motion, Damage, PGA, frequency content, RC building

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1106999

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[1] A. S. Elnashai, “A very brief history of earthquake engineering with emphasis on developments in and from the British Isles,” Chaos, Solitons & Fractals, Volume 13, Issue 5, April 2002, Pages 967-972.
[2] A. S. Elnashai, “Assessment of seismic vulnerability of structures,” Journal of Constructional Steel Research, Volume 62, Issue 11, November 2006, Pages 1134-1147.
[3] S. El-Kholy, M. El-assaly, and M. Maher, “Seismic vulnerability assessment of existing muti-story reinforced concrete buildings in Egypt,” Arab J Sci Eng, 2012, 37:341–355.
[4] M. El-assaly, M. Maher, and S. ElKholy, “Seismic damage assessment of vertical irregular RC buildings: case study of setback buildings, 10th International Conference RASD, 12-14 July, Southhampton, U.K., 2010.
[5] M. El-assaly, “Seismic Performance Assessment of vertical Irregular R.C. Buildings, for Various Ground Motion Characteristics,” CSCE 2012, 3rd International Structural Specialty Conference, Edmonton, Alberta, Canada, 2012.
[6] O. Kwon, and A. S. Elnashai, “Probabilistic Seismic Assessment of Structure, Foundation, and Soil Interacting Systems,” Mid-America Earthquake Center, 2007.
[7] A. Madan, and A. Hashmi, “Analytical prediction of the seismic performance of masonry infilled reinforced concrete frames subjected to near-field earthquakes,” J. Struct. Engrg., 2008, 134 (9), 1569 – 81.
[8] M. Dolsek, and P. Fajfar, “The effect of masonry infills on the seismic response of a four storey reinforced concrete frame-a probabilistic assessment,” Engineering Structures, 2008, 30, 1991–2001.
[9] M. El-assaly, “Effects of Frequency Content of Ground Motion on Seismic Response of Multistory Buildings,” CSCE 2005, 33rd Annual General Conference of the Canadian Society for Civil Engineering, Toronto, Ontario, Canada, 2005.
[10] M. Maher, S. ElKholy, and M. El-assaly, “The effects of ground motion characteristics on the seismic fragility curves of R/C buildings, CSCE 2009 Annual General Conference, St. John’s, Newfoundland and Labrador, Canada, 2009.
[11] T. Sawada, K. Hirao, H. Yamamoto, and O. Tsujihara, “Relation between maximum amplitude ratio and spectral parameters of earthquake ground motion,” Proceedings of 10th World Conference on Earthquake Engineering, Madrid, Spain, 1992, 2:617-622.
[12] FEMA-356, Pre-standard and commentary for the seismic rehabilitation of buildings, Federal Emergency Management Agency, Washington (DC), 2000.
[13] IDARC2D, A Computer Program for Seismic Inelastic Structural Analysis, Department of Civil, Structural and Environmental Engineering, University at Buffalo, New York, http://www.civil.eng.buffalo.edu/ idarc2d50/, 2006.
[14] ECCS-201, Egyptian Code for Design and Construction of Concrete Structures, Ministry of Housing, Utilities and Urban Communities, Cairo, Egypt, 2008.
[15] Y. J. Park, and H-S. Ang, “Mechanistic Seismic Damage model for Reinforced Concrete,” Journal of Structural Engineering, ASCE, 1985, 111(4), 722-739.
[16] Y. J. Park, H-S. Ang, and Y.K. Wen, “Damage-Limiting A seismic Design of Buildings,” Earthquake Spectra, 1987, 3(1), pp. 1–25.
[17] PEER. Strong Motion Database, the Pacific Earthquake Engineering Research Center and the University of California, Web site: http://www.peer.berkeley.edu/smcat/, 2000.
[18] S. K. Kunnath, A. M. Reinhorn, and R. F. Lobo, , IDARC Version 3.0, “A Program for the Inelastic Damage Analysis of Reinforced Concrete Structures,” Technical Report NCEER 92-0022, NCEER, State University of New York at Buffalo, 1992.
[19] M. R. Tabeshpour, A. Bakhshi, and A. A. Golafshani, “Seismic vulnerability, performance and damage analysis of special structures,” 13th World Conference on Earthquake Engineering, Canada, 2004.