Which risk increases when post-tensioned concrete beam over-tightening occurs during cable tensioning procedure?

💡 Explanation

When concrete beams are over-tensioned cracking occurs around anchorages because exceeding design stress limit induces local tensile stresses, leading to micro-cracks and reduced effective shear area. Therefore reduced shear strength results, rather than excess deflection, corrosion, or fire resistance decrease which depend on different degradation mechanisms.

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