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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.21 No.2
- 발행연도
- 2018.1
- 수록면
- 219 - 229 (11page)
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초록· 키워드
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In this paper, a modified rigid body spring model (RBSM) is proposed and used to analyze the damage and failure process of reinforced concrete (RC) structures. In the proposed model, the concrete is represented by an assembly of rigid blocks connected with a uniform distribution of normal and tangential springs to simulate the macroscopic mechanical behavior of concrete. Steel bars are evenly dispersed into rigid blocks as a kind of homogeneous axial material, and an additional uniform distribution of axial and dowel springs is defined to consider the axial stiffness and dowel action of steel bars. Perfect bond between the concrete and steel bars is assumed, and tension stiffening effect of steel bars is modeled by adjusting the constitutive relationship for the tensile reinforcement. Adjacent blocks are allowed to separate at the contact interface, which makes it convenient and easy to simulate the cracking process of concrete. The failure of the springs is determined by the Mohr-Coulomb type criterion with the tension and compression caps. The effectiveness of the proposed method is confirmed by elastic analyses of a cantilever beam under different loading conditions and failure analyses of a RC beam under two-point loading.
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참고문헌 (32)
참고문헌 신청
Aoyagi, Y. / 1983 / Strength and deformation characteristics of reinforced concrete shell elements subjected to in-plane forces / Proc. JPN Soc. Civil Eng. 331:167~180
Barzegar, F. / 1997 / Three-dimensional modeling of concrete structures. II: reinforced concrete / J. Struct. Eng. 123(10):1347~1356
Belytschko, T. / 1999 / Elastic crack growth in finite elements with minimal remeshing / Int. J. Numer. Meth. Eng. 45(5):601~620
Belytschko, T. / 1996 / Smoothing and accelerated computations in the element free Galerkin method / J. Comput. Appl. Math. 74(1-2):111~126
Bernardi, P. / 2015 / Numerical modeling of the cracking behaviour of RC and SFRC shear-critical beams / Eng. Fract. Mech. 167:151~166
Barzegar, F. / 1997 / Three-dimensional modeling of concrete structures. II: reinforced concrete / J. Struct. Eng. 123(10):1347~1356
Belytschko, T. / 1999 / Elastic crack growth in finite elements with minimal remeshing / Int. J. Numer. Meth. Eng. 45(5):601~620
Belytschko, T. / 1996 / Smoothing and accelerated computations in the element free Galerkin method / J. Comput. Appl. Math. 74(1-2):111~126
Bernardi, P. / 2015 / Numerical modeling of the cracking behaviour of RC and SFRC shear-critical beams / Eng. Fract. Mech. 167:151~166
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