Rheological-Dynamical Continuum Damage Model Applied to Research of the Rotational Capacity of a Reinforced Concrete Beams

Authors

  • Dragan D. Milašinović
    Affiliation

    Faculty of Civil Engineering Subotica, University of Novi Sad

  • Danica Goleš
    Affiliation

    Faculty of Civil Engineering Subotica, University of Novi Sad

  • Arpad Čeh
    Affiliation

    Faculty of Civil Engineering Subotica, University of Novi Sad

https://doi.org/10.3311/PPci.8763

Abstract

In this paper a new rheological-dynamical continuum damage model for concrete under compression is used to research the behaviour of reinforced concrete beams subjected to bending. Within the framework of this approach the stress-strain curve of a concrete under compression in the pre-peak regime can be computed if the compressive strength, elastic modulus, concrete density and Poisson’s ratio are experimentally evaluated. The ultimate strain is determined in the post-peak regime only, using the secant stress-strain relation from damage mechanics. Experimental stress-strain data in the pre-peak regime for five concrete compositions were obtained during the examination presented herein. The numerical predictions regarding moment-curvature and ductility of a reinforced concrete beam are presented for five concrete compositions, demonstrating capabilities of a new analytical model.

Keywords:

concrete under compression, stress-strain curve, reinforced concrete beam, rotational capacity

Published Online

2016-09-01

How to Cite

Milašinović, D. D., Goleš, D., Čeh, A. “Rheological-Dynamical Continuum Damage Model Applied to Research of the Rotational Capacity of a Reinforced Concrete Beams”, Periodica Polytechnica Civil Engineering, 60(4), pp. 661–667, 2016. https://doi.org/10.3311/PPci.8763

Issue

Section

Research Article