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Title |
Cyclic-Leading Tests of RC Exterior Beam-Column Joints with Non-Seismic Detailing
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Keywords |
비내진상세; 보-기둥 접합부; 슬래브; 정착; 전단보강근 non-seismic detailing ; beam-column subassemblage; slab; anchorage; hoop |
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Abstract |
The objective of this study is to clarify the seismic capacity and the characteristics in the hysteretic behavior of RC structures with non-seismic detailing. To do this, an exterior beam-column subassemblage was selected from a ten story RC building and six 1/3-scale specimens were manufactured with three variables; (1) with and without slab, (2) upward and downward direction of anchorage for the bottom bar in beams, and (3) with and without hoop bars in the joint region. The test results have shown that (1) the existence of slab increased the strength in positive and negative moment, 25% and 52%, respectively; (2) the Korean practice of anchorage (downward and 25db anchorage length) caused the 8% reduction of strength and the early strength degradation in comparison with the case of seismic details; and (3) the existence of hoop bars in the joint region shows significant role in preventing the pull-out.t
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