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http://dx.doi.org/10.5000/EESK.2006.10.3.077

An Evolution of Nonlinear Dynamic Response of an Unreinforced Masonry Structure  

Kim, Nam-Hee (Korea Bridge & Engineering Research Center, Seoul National University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.10, no.3, 2006 , pp. 77-84 More about this Journal
Abstract
Unlike homogeneous material structure, the behavior of masonry structure is not perfectly elastic even in the range of small deformations because it is a non-homogeneous and anisotropic composite structural material, consisting of masonry units, mortar, and grout. This paper proposes a simplified way of investigating the evolution of the deformation and damage of the structure subjected to a series of successive ground motions with varying shaking. Especially, the most simple but useful algorithm of Fast Fourier Transformation (FFT) has been adopted to investigate the evolution of the deformation and damage of the structure tested on the shaking table. Moreover, the development of a hi-linear curve for an equivalent SDOF system which is obtained by exploiting the frequency and stiffness relationship was discussed. Finally, some important findings related to inelastic properties of the URM are summarized.
Keywords
unreinforced masonry structure; windowed FFT; equivalent SDOF system; bi-linear curve;
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  • Reference
1 Bruneau and Michel, 'State-of-the-Art Report on Seismic Performance of Unreinforced Masonry Buildings,' Journal of Structural Engineering, ASCE, Vol. 120, No.1, 1994, pp. 230-251   DOI   ScienceOn
2 Costley, A. C. and Abrams, D. P., 'Dynamic Response of Unreinforced Masonry Buildings with Flexible Diaphragms,' Report No. NCEER-96-0001, National Center for Earthquake Engineering Research, State University of New York at Buffalo, Buffalo, New York, USA, 1996
3 Kim, N.H. and Kim, J.K., 'Dynamic Response of Unreinforced Masonry Building,' Journal of Earthquake Engineering Society of Korea, EESK, Vol. 8, No. 5, 2004, pp. 1-14
4 Calvi, G.M. and Magenes, G., 'Experimental Research on Response of URM Building Systems,' Proceedings of the US.-Italy Workshop on Guideleines for Seismic Evaluation and Rehabilitation of Unreirforced Masonry Buildings, Section III, 1994, pp. 41-57