Loads are transferred from the girders to the pier caps via bearings. A bearing is a component that supports a section of a bridge and transmits forces from that section to another part of the structure while allowing angular and/or linear movement between components.

Headstock / Pier Cap

The component that transfers loads from the superstructure to the piers is known as the pier cap or headstock. Pier caps offer enough seating for Bridge girders and distribute loads from the bearings to the Piers.