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http://dx.doi.org/10.5762/KAIS.2013.14.8.4048

FE Analysis of the Composite Action in the Composite Beam subjected to the Hogging Moment  

Shin, Hyun-Seop (Structural Engineering Research Division, Korea Institute of Construction Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.8, 2013 , pp. 4048-4057 More about this Journal
Abstract
In the composite beam subjected to the hogging moment it is very difficult to evaluate the influence of the reduction of slab stiffness due to cracks and their development on the horizontal shear behavior of shear connection. In this study, a 3D FE model is developed by which one can analyze the composite action in the composite beam subjected to the hogging moment. In this FE model, each structural member and shear connection are modeled as similar as possible to details of the composite beam. Bending behaviour, and composite action which could not be analyzed using the existing 1D or 2D FE model are investigated by the 3D model. Analysis results show that the reinforcement ratio and crack behaviour of the slab are main factors which exert a strong influence on the composite action. According to the analysis results about load-slip behavior, initial crack of slab and yielding of rebars have a influence on the slip stiffness of shear connection. The existing experimental results, that the design of partial interaction can be more efficient in designing of shear connection of the composite beams, are indirectly verified by the FE analysis.
Keywords
Composite action; Composite beam; Hogging moment; FE analysis; Shear stud;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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