겹침이음 길이가 짧은 RC 기둥의 이방향 횡하중 가력 실험Bidirectional Lateral Loading of RC Columns with Short Lap Splices
- Other Titles
- Bidirectional Lateral Loading of RC Columns with Short Lap Splices
- Authors
- 이창석; 박이슬; 한상환
- Issue Date
- Jan-2020
- Publisher
- 한국지진공학회
- Keywords
- Bidirectional loading; Modeling parameter; Lap splice; RC column
- Citation
- 한국지진공학회논문집, v.24, no.1, pp.19 - 27
- Indexed
- KCI
- Journal Title
- 한국지진공학회논문집
- Volume
- 24
- Number
- 1
- Start Page
- 19
- End Page
- 27
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/146315
- DOI
- 10.5000/EESK.2020.24.1.019
- ISSN
- 1226-525X
- Abstract
- Reinforced concrete (RC) buildings built in the 1980s are vulnerable to seismic behavior because they were designed without any consideration of seismic loads. These buildings have widely spaced transverse reinforcements and a short lap splice length of longitudinal reinforcements, which makes them vulnerable to severe damage or even collapse during earthquakes. The purpose of this study is to investigate the impact of bidirectional lateral loads on RC columns with deficient reinforcement details. An experimental test was conducted for two full-scale RC column specimens. The test results of deficient RC columns revealed that bidirectional loading deteriorates the seismic capacity when compared with a column tested unidirectionally. Modeling parameters were extracted from the tested load-displacement response and compared with those proposed in performance-based design standards. The modeling parameters proposed in the standards underestimated the deformation capacity of tested specimens by nearly 50% and overestimated the strength capacity by 15 to 20%.
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