Which risk increases when improperly calibrated tensioning equipment stresses a pre-stressed concrete beam beyond designed limits?

💡 Explanation

When excessive tension stresses a beam beyond its yield point, brittle failure of the prestressing tendons can occur because the steel's strain hardening capacity is exceeded without sufficient warning. Therefore, tendon rupture results, rather than gradual creep, accelerated corrosion, or reduced shear, which involve distinct degradation mechanisms.

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