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← HistoryWhich constraint was amplified when suspension bridge cables experienced ice loading?
A)Torsional instability increases markedly✓
B)Material fatigue resistance is enhanced
C)Damping ratios experience sharp increases
D)Resonance frequencies are drastically reduced
💡 Explanation
Torsional instability becomes extreme because ice significantly adds mass unevenly loading cables, intensifying rotational forces. Therefore, torsional instability increases rather than bridges becoming resistant to material fatigue or frequency reduction occurring under uniform load.
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