Which problem increased for early Inca suspension bridges located where the canyon narrowed drastically?

A)Anchorage cables experienced excessive shearing✓

B)The bridge deck underwent thermal expansion

C)Wind loading induced resonant vibrations.

D)Material creep led to deck sagging

💡 Explanation

Shearing at anchorages increased because concentrated tension on ropes caused by constricted geography exceeds material limits, activating stress concentration. Therefore excessive shearing, rather than deck sagging, occurred because differing boundary conditions applied to anchor points.

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Which problem increased for early Inca suspension bridges located where the canyon narrowed drastically?

💡 Explanation

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