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Nonlinear Finite Element Analysis Of Reinforced Concrete Slab Strengthened With Shear Bolts

Last Update2008-08-31
TitleNonlinear Finite Element Analysis Of Reinforced Concrete Slab Strengthened With Shear Bolts
Author(s)Author #1
Author title:
Name: Khalil Belakhdar
Org: Postgraduate Student Researcher, Department of Civil Engineering, Moulay Tahar University Center, Saida, Algeria.
Country: Algeria

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Contact AuthorAuthor #1
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KeywordsReinforced concrete plates, Nonlinear FE analysis of RC slabs, Shear capacity of concrete slabs, Shear bolts, Punching shear, Slabs strengthening.
AbstractThis paper presents an implementation of a rational three-dimensional nonlinear finite element model for evaluating the behavior of reinforced concrete slabs strengthened with shear bolts under transverse load. The concrete was idealized by using eight-nodded brick elements. While both flexural reinforcement and the shear bolts were modeled as truss elements, a perfected bond between brick elements and truss elements was assumed. The nonlinear behavior of concrete in compression is simulated by an elasto-plastic work-hardening model, and in tension a suitable post-cracking model based on tension stiffening and shear retention models are employed. The steel was simulated using an elastic-full plastic model. The validity of the theoretical formulations and the program used was verified through comparison with available experimental data, and the agreement has proven to be good. A parametric study has been also carried out to investigate the influence of the shear bolts� diameter and number of bolts� rows around the column-slab connection, on the ductility and ultimate load capacity of slabs.
Paperview paper 38.pdf (347KB)