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← HistoryWhich outcome occurs when a cable-stayed bridge experiences differential cable corrosion?
A)Resonance frequency of stays decreases✓
B)Deck load distribution is normalized
C)Torsional stiffness proportionally increases
D)Increased transverse aerodynamic stability
💡 Explanation
A decrease in cable mass results in lower resonance frequencies because corrosion diminishes the cable’s cross-sectional area, reducing its ability to resist oscillations, while the cable's tension remains constant. Therefore, resonance frequency decreases, rather than deck load being normalized; the corrosion process affects cable tension unevenly.
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