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Nonlinear Modeling of Reinforced Concrete Columns under Cyclic Loading
- Title
- Nonlinear Modeling of Reinforced Concrete Columns under Cyclic Loading
- Authors
- Eom, Tae-Sung; Lee, Seung-Jae; Kim, Chul-Goo; Park, Hong-Gun
- Ewha Authors
- 김철구
- SCOPUS Author ID
- 김철구
![scopus](/images/layout/icon2.png)
- Issue Date
- 2022
- Journal Title
- ACI STRUCTURAL JOURNAL
- ISSN
- 0889-3241
1944-7361
- Citation
- ACI STRUCTURAL JOURNAL vol. 119, no. 2, pp. 195 - 208
- Keywords
- column; cyclic loading; deformation capacity; hysteresis loop; nonlinear modeling; reinforced concrete
- Publisher
- AMER CONCRETE INST
- Indexed
- SCIE; SCOPUS
![scopus](/images/layout/scopus2.gif)
- Document Type
- Article
- Abstract
- Nonlinear modeling parameters for reinforced concrete (RC) columns under cyclic loading were investigated with an emphasis on failure mode and hysteretic energy dissipation. By reviewing existing shear and axial strength models, a failure mode-based modeling method to define the force-deformation relations was developed. The effective stiffness, yield deformation, and ultimate deformation to define the envelope relation were proposed as functions of axial compression ratio, shear span ratio, and the shear strengths of concrete and transverse reinforcement. Furthermore, the energy dissipation ratio (kappa), defined as the ratio of the hysteretic energies dissipated by the actual behavior and idealized elastic perfectly plastic behavior; was formulated, and the cyclic relation including hysteresis loops and unloading/reloading stiffness was defined using kappa. For verification, the modeling results of load-deformation relations were compared with existing test results of columns under cyclic loading. Based on the investigation results, recommendations for the practical application of the proposed method were discussed.
- DOI
- 10.14359/51734141
- Appears in Collections:
- 공과대학 > 건축도시시스템공학과 > Journal papers
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