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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.5
- 발행연도
- 2018.1
- 수록면
- 593 - 605 (13page)
이용수
초록· 키워드
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A nonlinear finite element modeling approach is developed to assess the behavior of a dowel bar embedded on a single concrete block substrate, subjected to monotonic loading. In this approach, a discrete representation of the steel reinforcing bar is considered, using beam finite elements with nonlinear material behavior. The bar is connected to the concrete embedment through nonlinear Winkler spring elements. This modeling approach can only be used if a new constitutive model is developed for the spring elements, to simulate the deformability and strength of the concrete substrate. To define this constitutive model, an extensive literature review was conducted, as well as 3 experimental tests, in order to select the experimental data which can be used in the calibration of the model. Based on this data, an empirical model was established to predict the global dowel response, for a wide range of bar diameters and concrete strengths. This empirical model provided the information needed for calibration of the nonlinear Winkler spring model, valid for dowel displacements up to 4 mm. This new constitutive model is composed by 5 stages, in order to reproduce the concrete substrate response.
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참고문헌 (39)
참고문헌 신청
Bennett, E.W. / 1976 / Strength of beam-column connections with dowel reinforcement / Struct. Eng. 54(4):133~139
Davids, W.G. / 1997 / Development of embedded bending member to model dowel action / J. Struct. Eng. 123(10):1312~1320
Dei Poli, S. / 1992 / Shear response, deformations, and subgrade stiffness of a dowel bar embedded in concrete / ACI Struct. J. 89(6):665~675
DIANA / 2014 / DIANA Finite Element Analysis User's Manual Release 9.6
Dias-da-Costa, D. / 2012 / FE modeling of the interfacial behaviour of composite concrete members / Constr. Build. Mater. 26:233~243
Davids, W.G. / 1997 / Development of embedded bending member to model dowel action / J. Struct. Eng. 123(10):1312~1320
Dei Poli, S. / 1992 / Shear response, deformations, and subgrade stiffness of a dowel bar embedded in concrete / ACI Struct. J. 89(6):665~675
DIANA / 2014 / DIANA Finite Element Analysis User's Manual Release 9.6
Dias-da-Costa, D. / 2012 / FE modeling of the interfacial behaviour of composite concrete members / Constr. Build. Mater. 26:233~243
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