What is the purpose of bridge bearing

A bridge bearing is a part of a bridge which typically supply a resting surface between bridge piers and the bridge deck. The main purpose of a bridge bearing is to authorize controlled movement and accordingly reduce the stresses combine. Possible causes of movement are thermal expansion and contraction, creep, shrinkage, or fatigue due to

Use of expansion joint in building

Expansion joint is very essential in building to reduce the cracks because of thermal variation. Bureau of Indian standard fixed the some length of buildings above which the one or more expansion joint is required in building. An expansion joint is provided in concrete to authorize the movement of structural elements due to temperature, moisture

Types of Bridge Bearings and their Details