The figure below summarises the basic assumptions, including the stress-strain relationships of concrete and reinforcement.
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ConcreteFeaturesDetail 2DReinforcement
Understanding concrete design reinforcement
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In order to obtain realistic results in IDEA StatiCa Detail, tension stiffening is accounted for using the Tension Chord Model, which is also used for calculating the crack widths (using effective concrete areas compatible with code requirements).
Jana Kaderova
Product Engineer IDEA StatiCa
Technical specialist focusing on steel applications.