Stress-strain model for concrete under cyclic loading - پروژه ها

Stress-strain model for concrete under cyclic loading

Stress-strain model for concrete under cyclic loadingA hysteretic stress–strain model is developed for unconfined concrete with the intention of providing efficientmodelling for the structural behaviour of concrete in seismic regions. The proposed model is based on thefindings of previous experimental and analytical studies. The model for concrete subjected to monotonic andcyclic loading comprises four components in compression and tension – an envelope curve (for monotonic andcyclic loading), an unloading curve, a reloading curve and a transition curve. Formulations for partial unloadingand partial reloading curves are also presented. The reliability of the proposed constitutive model is investigatedfor a reinforced concrete member using a non-linear finite-element…