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 outcome occurs as intensive maize cultivation exhausts soil nutrients within a chinampa system?
• Which mechanism caused cast iron cannons to explode during the Napoleonic Wars after prolonged use?
• Which stability risk increased during the construction of Roman roads across marshy terrain?
• Which effect occurred due to Ibn al-Haytham's improved lens grinding techniques used for early reading stones?
• Which structural failure results when Roman concrete in a marine pier experiences prolonged sulfate attack?
• Which risk increases when the hydraulic head exceeds design limits in a Roman aqueduct?