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http://dx.doi.org/10.11112/jksmi.2013.17.6.011

Quantitative Damage Index of RC Columns with Non-seismic Details  

Kim, Kyung-Min (국립재난안전연구원)
Oh, Sang-Hoon (부산대학교 건축공학과)
Choi, Kwang-Yong (부산대학교 건축공학과)
Lee, Jung-Han (국립재난안전연구원)
Park, Byung-Cheol (국립재난안전연구원)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.17, no.6, 2013 , pp. 11-20 More about this Journal
Abstract
In this paper, the quantitative damage index for reinforced concrete (RC) columns with non-seismic details were presented. They are necessary to carry out the postearthquake safety evaluation of RC buildings under 5 stories without seismic details. The static cyclic test of the RC frame sub-assemblage that was an one span and actual-sized was first conducted. The specimen collapsed by the shear failure after flexural yielding of a column, lots of cracks on the surfaces of columns and beam-column joints and the cover concrete splitting at the bottom of columns occurred. The damage levels of these kinds of columns with non-seismic details were classified to five based on the load-displacement relationship by the test result. The residual story drift ratios and crack widths were then adapted as the quantitative index to evaluate the damage limit states because those values were comparatively easy to measure right after earthquakes. The highest one among the residual story drift ratios under the similar maximum story drift ratio decided on the residual story drift ratio of each damage limit state. On the other hand, the lowest and average ones among the respective residual shear and flexural widths under the similar maximum story drift ratio decided on the residual shear and flexural widths of each damage limit state, respectively. These values for each damage limit state resulted in being smaller than those by the international damage evaluation guidelines that are for seismically designed members under the same deformations.
Keywords
Damage evaluation; Damage limit state; Quantitative index; Non-seismic details; Reinforced concrete; Residual drift ratio; Residual crack width;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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