Which risk increases when a cantilever bridge’s rocker bearing freezes due to corrosion?

💡 Explanation

When a rocker bearing freezes, thermal expansion and contraction cause additional stress because the deck can no longer freely move, potentially leading to uplift forces on the anchor piers. Therefore, uplift of the anchor piers results, rather than shear failure, buckling, or torsion which require different loading conditions.

• Which navigational outcome occurs when a chronometer's mainspring weakens in an 18th-century ship?
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• Which structural vulnerability increased for late Roman fortifications that incorporated extensive mortar use during construction?
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• Which outcome resulted from the Aztecs constructing chinampas in the Valley of Mexico's lake system?
• Which function did the 'Equation of Time' correct for in pre-1800 mechanical astronomical clocks?