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Which risk increases when excessive creep strain accumulates in post-tensioned concrete bridge girders?

A)Reduced camber from cable force loss
B)Brittle fracture from increased rebar stress
C)Shear failure from diagonal cracking
D)Corrosion from increased concrete porosity

💡 Explanation

When excessive creep occurs, sustained loading causes concrete to deform over time because the microstructure rearranges, leading to loss of prestressing force and reduced camber. Therefore, reduced camber results, rather than other failure modes which originate from distinct loading conditions or material weaknesses.

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