FINITE-DISCRETE NUMERICAL MODELLING OF REINFORCED CONCRETE STRUCTURES

• DOI: 10.7712/100016.2199.7522
• Publication Date: 2017-03-22T11:48:47Z
• Authors: Nikolina Zivaljic; Zeljana Nikolic; Hrvoje Smoljanovic; Ivan Balic
• Keywords: Numerical models

Crack opening is one of the dominant causes nonlinearity in brittle and quasibrittle structures which leads to localized failure stands out as a serious challenge numerical modelling.Therefore, realistic modelling crack initiation propagation key factors that affect reliability model for analysing structures, especially those subjected earthquakes.The largest number world's most populated seismic areas made materials such reinforced concrete, stone masonry, dominantly influences structural collapse.Sophisticated models based on time dependent incremental dynamic analysis can play an important role simulating behaviour structures.In this work 2D 3D concrete under static load presented.The uses finite-discrete element method; thus taking into account discontinuous nature at stages.This approach considers structure deformable continuum until cracks.The transition from discontinuum result initiations are modelled through contact elements implemented between finite elements.The interaction discrete considered algorithm principle potential forces computed using penalty function method Coulomb friction law.The non-linear tension shear takes strain-hardening, strain-softening cyclic during loading.The reinforcing bars approximation experimental curves bar strain crack.The developed includes effects reinforcement well steel loading.Thus, it possible describe propagation, collapse mechanism, energy dissipation by effects, inertial very RC load.