Three-dimensional finite element modeling of RC columns subjected to cyclic lateral loading

This paper presents a detailed finite element modeling scheme to simulate the cyclic response of RC columns considering low-cycle fatigue and bond-slip reinforcement. The includes triaxial constitutive model recently proposed in literature concrete failure under loading. For steel, commonly used uniaxial is enhanced account for bar rupture using new criterion, which has been validated with data from tests on reinforcing bars. behavior vertical bars modeled zero-thickness concrete-steel interface element. bond stress-slip law that predicts deterioration caused by generalized slip demands, tensile yielding compression damage concrete. models are experimental large-scale column pile specimens exhibited flexure-dominated responses. accurately lateral force–displacement specimens, provide peak strain demands along longitudinal similar those measured experimentally. Sensitivity analyses also conducted study effect assumptions related behavior.