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Cyclic Behavior of Reinforced Concrete Columns with L-Shaped Ties
- Title
- Cyclic Behavior of Reinforced Concrete Columns with L-Shaped Ties
- Authors
- Shin, Yeongsoo; Kim, Hee-Sun; Kim, Chul-Goo
- Ewha Authors
- 신영수; 김희선; 김철구
- SCOPUS Author ID
- 신영수; 김희선; 김철구
- Issue Date
- 2024
- Journal Title
- JOURNAL OF STRUCTURAL ENGINEERING
- ISSN
- 0733-9445
1943-541X
- Citation
- JOURNAL OF STRUCTURAL ENGINEERING vol. 150, no. 3
- Keywords
- L-tie; Column; Transverse reinforcement; Hoop; Deformation capacity; Shear failure; Flexural yielding
- Publisher
- ASCE-AMER SOC CIVIL ENGINEERS
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- In reinforced concrete columns, both constructability and structural safety should be considered in selecting the anchorage details of transverse reinforcement. For the simple installation of peripheral hoops, in this study, L-shaped ties were proposed to replace the conventional closed hoops with 135 degrees hook anchorages. The L-ties can be easily installed from the side of columns by temporarily moving a longitudinal bar. Cyclic lateral loading tests were performed on five reinforced concrete columns to verify the effect of the L-ties on the shear resistance and buckling resistance of longitudinal bars after concrete cover spalling. The main test parameters included the types of transverse reinforcement, aspect ratio of columns, and straight extension of hooks. The test results demonstrated that the strength, deformation capacity, and energy dissipation of the columns using L-ties were comparable to those of columns using the conventional closed hoops because 135 degrees hooks at both ends in the L-ties were anchored in the core concrete. The straight extension of the 135 degrees hook anchorages with 6db provided a sufficient anchorage performance despite following concrete cover spalling. Furthermore, nonlinear behaviors of the columns were discussed by comparing the nonlinear modeling parameters specfied in current standards to evaluate postyield deformation capacities.
- DOI
- 10.1061/JSENDH.STENG-12557|http://dx.doi.org/10.1061/JSENDH.STENG-12557
- Appears in Collections:
- 공과대학 > 건축도시시스템공학과 > Journal papers
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