[2026] EFFECT OF MATERIAL MODELS ON NUMERICAL RESULT OF A FLEXURE-SHEAR-CRITICAL RC COLUMN
キーワード：flexure-shear-critical RC column, material model, OpenSees, shear limit curve, VecTor2
Predicting the inelastic hysteretic behavior of shear-critical or flexure-shear-critical RC columns still remains challenging. In this paper, two numerical modelling methods for a flexure-shear-critical RC column are evaluated. One is based on fiber-section element with lumped shear spring characterized by shear limit curve in OpenSees; the effects of hysteretic behavior for longitudinal reinforcement on the numerical results are investigated. The other is modelled with continuum element based on the MCFT/DSFM using VecTor2. Both methods can predict the shear-related hysteretic behavior of the RC column, if appropriate models are provided.