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← TechnologyWhich load-redistribution outcome occurs when differential settlement impacts jacketed pile-supported bridge columns?
A)Axial compression in adjacent piles✓
B)Reduced shear in the bridge deck
C)Increased damping from composite action
D)Decreased moment demand on footings
💡 Explanation
Increased settlement causes load redistribution between piles via soil-structure interaction because soil stiffness varies; therefore, axial compression increases especially within adjacent jacketed piles rather than merely reducing shear or damping effects, due to the 'soil-jacket-transfer' mechanism.
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