Which risk increases when rebar cage placement is eccentric within a pre-stressed concrete beam before tensioning?

💡 Explanation

When rebar cages are eccentrically placed, uneven stress distribution occurs during pre-stressing because tension applied is not aligned with the centroid, leading to higher stress concentrations in certain areas of the concrete. Therefore, premature cracking occurs, rather than increased ductility, reduced shear capacity, or higher bond strength, which rely on uniform stress distribution.

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