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I created a CDP model with enlarged boundary elements for a shear wall. I performed a nonlinear static analysis with a 500 mm displacement. I couldn’t observe any difference in results when I increased the amount of longitudinal reinforcement in enlarged boundary elements (column). I mean that the longitudinal bar confinement effect is not visible.

How do I get the confinement effect of ties while modeling an RCC column in Abaqus?

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Hi,

I don’t know how you increased the column reinforcement. I suggest rechecking your model. Please note that increasing the number of the bars and decreasing their cross-section simultaneously could cause them to counteract each other’s effect; therefore, the stress won’t change. If that’s what you did, you should change one of them or if you want to change both, do it properly to see its effects in your model.

Also, I recommend referring to the link below. It could help you with your current problem and future problems as well.

Abaqus Tutorial for Beginners (Abaqus Tutorial for Civil Engineering)

Best regards.

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