Which structural consequence resulted when early suspension bridges experienced pedestrian-induced synchronous lateral excitation?

💡 Explanation

When pedestrians walk in step on suspension bridges, synchronous lateral excitation can induce resonance because the periodic force matches the bridge's natural frequency, leading to amplified oscillations and deck collapse. Therefore deck collapse results, rather than cable fatigue, tower collapse, or anchor failure which require different loading conditions and mechanisms.

• Which outcome occurred when medieval Islamic algebra was applied to inheritance law calculations involving complex family structures?
• Which effect occurs in ship's hull experiencing increased hogging during the age of sail?
• Which structural failure increased sharply when cast iron bridges replaced stone arches in the 19th century?
• Which outcome occurred when pre-Columbian chinampa agriculture expanded in the Valley of Mexico during the Post-Classic period?
• Which risk increased when 18th-century shipbuilders introduced iron knees to reinforce wooden hull-frame joints?
• Which outcome results when irrigating chinampas with increasingly saline water sources?