Question

most long and large bridges have an expansion joint. how do these joints prevent a bridge from collapsing on a hot day ? with pictures​

Answer 1

Answer:

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Explanation:

Expansion joints prevent build up of resonant frequencies, which dangerously amplify the swaying motion of bridges. Without such joints, bridges are liable to collapse.Bridge expansion joints are designed to adjust its length accommodating movement or deformation by external loads, shrinkage, or temperature variations, and allow for continuous traffic between bridge structures and interconnecting structures (another bridge or abutment).