000018959 001__ 18959
000018959 005__ 20170118182249.0
000018959 04107 $$aeng
000018959 046__ $$k2017-01-09
000018959 100__ $$aKoutromanos, Ioannis
000018959 24500 $$aTriaxial Material Model for Concrete Structures Under Cyclic Loading

000018959 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018959 260__ $$b
000018959 506__ $$arestricted
000018959 520__ $$2eng$$aThis paper presents the formulation of a material model for the analysis of concrete under multiaxial, cyclic loading conditions, and its use for the analysis of failure of reinforced concrete structures. The model combines an elastoplastic formulation with a non-associative flow rule to capture compression-dominated behavior and a rotating smeared-crack model to capture the tension-dominated behavior. The proposed formulation resolves the issues which exist in many available concrete material models, related to properly capturing the crack opening and closing behavior and accounting for the effect of confinement on the strength and ductility under compression-dominated stress states. The concrete material model is combined with a constitutive model for reinforcing steel which can account for the hysteretic response and for the material failure due to low-cycle fatigue. Validation analyses for reinforced concrete components show that the analytical models can capture the damage patterns and the hysteretic response.

000018959 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018959 653__ $$aTriaxial Constitutive model; Concrete structures; Cyclic loading; Confinement effect; Rebar Buckling and Rupture;

000018959 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018959 720__ $$aKoutromanos, Ioannis$$iMoharrami, Mohammadreza
000018959 8560_ $$ffischerc@itam.cas.cz
000018959 8564_ $$s1293161$$uhttps://invenio.itam.cas.cz/record/18959/files/2571.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2571.
000018959 962__ $$r16048
000018959 980__ $$aPAPER