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Journal Articles Computers and Concrete, an International Journal Year : 2010

Stress resultant model for ultimate load design of reinforced-concrete frames

Abstract

In this paper, we present a new finite Timoshenko beam element with a model for ultimate load computation of reinforced concrete frames. The proposed model combines the descriptions of the diffuse plastic failure in the beam-column followed by the creation of plastic hinges due to the failure or collapse of the concrete and or the re-bars. A modified multi-scale analysis is performed in order to identify the parameters for stress-resultant-based macro model, which is used to described the behavior of the Timoshenko beam element. The micro-scale is described by using the multi-fiber elements with embedded strain discontinuities in mode 1, which would typically be triggered by bending failure mode. A special attention is paid to the influence of the axial force on the bending moment - rotation response, especially for the columns behavior computation.
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Dates and versions

hal-02002875 , version 1 (31-01-2019)

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Ba-Hung Pham, Luc Davenne, Delphine Brancherie, Adnan Ibrahimbegovic. Stress resultant model for ultimate load design of reinforced-concrete frames. Computers and Concrete, an International Journal, 2010, 7 (4), pp.303-315. ⟨10.12989/cac.2010.7.4.303⟩. ⟨hal-02002875⟩
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