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← HistoryWhich increased risk occurred when longer Inca rope bridges underwent periods, exceeding design assumptions?
A)Increased deck cable tensile failure✓
B)Increased embankment differential settlement
C)Taller pier masonry cracking risk
D)Main road reduced animal traffic
💡 Explanation
Increased deck cable tensile failure occurs in long bridges because creep, a diffusion mechanism causing slow plastic deformation under constant stress, gradually weakens the cable fibers. Therefore, fiber stress increases, rather than embankment settlement or pier issues, with heavier deck sagging.
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