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← HistoryWhich outcome results when inadequately anchored cable bridges experience excessive wind loading?
A)Resonance cascade induces structural failure✓
B)Progressive yielding triggers material creep
C)Strain hardening increases tensile strength
D)Damping reduces load amplification abruptly
💡 Explanation
Resonance occurs if wind excites the bridge's natural frequency; therefore, increasing the oscillating amplitude via positive feedback leads to structural failure, because increased stress exceeds material's load capacity, rather than a gradual material yielding at lower frequencies.
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