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http://dx.doi.org/10.5000/EESK.2004.8.5.001

Dynamic Response of Unreinforced Masonry Building  

Kim, Nam-Hee (서울대학교 지구환경시스템공학부)
Kim, Jae-Kwan (서울대학교 지구환경시스템공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.8, no.5, 2004 , pp. 1-14 More about this Journal
Abstract
The seismic behavior of a 1/3-scale model of a two-story unreinforced masonry (URM) structure typically used in constructing low-rise residential buildings in Korea is studied through a shaking table test. The purposes of this study are to investigate seismic behavior and damage patterns of the URM structure that was not engineered against seismic loading and to provide its experimental test results. The test structure was symmetric about the transverse axis but asymmetric to some degrees about longitudinal axis and had a relatively strong diaphragm of concrete slab. The test structure was subjected to a series of differentlevels of earthquake shakings that were applied along the longitudinal direction. The measured dynamic response of the test structure was analyzed in terms of various global parameters (i.e., floor accelerations, base shear, floor displacements and storydrift, and torsional displacements) and correlated with the input table motion. Moreover, different levels of seismic performance were suggested for performance-based design approach. The results of the shaking table test revealed that the shear failure was dominant on a weak side of the 1stfloor while the upper part of the test model remained as a rigid body. Also, it was found that substantial strength and deformation capacity existed after cracking.
Keywords
shaking table test; unreinforced masonry structure; dynamic behavior; performance-based design;
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