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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.20 No.1
- 발행연도
- 2017.1
- 수록면
- 11 - 22 (12page)
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초록· 키워드
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There are two methods to model the plastification of members comprising lumped and distributed plasticity. When a reinforced concrete member experiences inelastic deformations, cracks tend to spread from the joint interface resulting in a curvature distribution; therefore, the lumped plasticity methods assuming plasticity is concentrated at a zero-length plastic hinge section at the ends of the elements, cannot model the actual behavior of reinforced concrete members. Some spread plasticity models including uniform, linear and recently power have been developed to take extended inelastic zone into account. In the aforementioned models, the extended inelastic zones in proximity of critical sections assumed close to connections are considered. Although the mentioned assumption is proper for the buildings simply imposed lateral loads, it is not appropriate for the gravity load effects. The gravity load effects can influence the inelastic zones in structural elements; therefore, the plasticity models presenting the flexibility distribution along the member merely based on lateral loads apart from the gravity load effects can bring about incorrect stiffness matrix for structure. In this study, the linear flexibility distribution model is improved to account for the distributed plasticity of members subjected to both gravity and lateral load effects. To do so, a new model in which, each member is taken as one structural element into account is proposed. Some numerical examples from previous studies are assessed and outcomes confirm the accuracy of proposed model. Also comparing the results of the proposed model with other spread plasticity models illustrates glaring error produced due to neglecting the gravity load effects.
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참고문헌 (33)
참고문헌 신청
Al-Haddad, M. S. / 1988 / Relocating beam plastic hinging zones for earthquake resistant design of reinforced concrete buildings / ACI Struct. J. 85(2):123~133
Alva, G. M. S. / 2010 / Application of lumped dissipation model in nonlinear analysis of reinforced concrete structures / Eng. Struct. 32(4):974~981
Anderson, J. C. / 1977 / Models for RC frames with degrading stiffness / J. Struct. Div. 103(12):2361~2376
Aoyama, H. / 1968 / Recent Researches of Structural Mechanics, Contributions in Honor of the 60th Birthday of Prof. Y. Tsuboi / Uno Shoten :15~30
Birely, A. C. / 2012 / A model for the practical nonlinear analysis of reinforced-concrete frames including joint flexibility / Eng. Struct. 34:455~465
Alva, G. M. S. / 2010 / Application of lumped dissipation model in nonlinear analysis of reinforced concrete structures / Eng. Struct. 32(4):974~981
Anderson, J. C. / 1977 / Models for RC frames with degrading stiffness / J. Struct. Div. 103(12):2361~2376
Aoyama, H. / 1968 / Recent Researches of Structural Mechanics, Contributions in Honor of the 60th Birthday of Prof. Y. Tsuboi / Uno Shoten :15~30
Birely, A. C. / 2012 / A model for the practical nonlinear analysis of reinforced-concrete frames including joint flexibility / Eng. Struct. 34:455~465
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