Bearings • Bridge and Structural Bearings

Bridge bearings are devices for transferring loads and movements from superstructure to substructure and foundation, while allowing for movement and rotation of the superstructure due to wind, seismic activity, temperature variations, and other disturbances. These bearings can also be used in highway, railway, and pedestrian bridges and other similar applications.Bridge bearings come in several different types. One of the most popular is the elastomeric sliding bearing, which is made from chloroprene rubber or natural rubber, reinforced by a high-strength steel plate; it allows for absorption of vertical loads as well as horizontal movements and rotations around all axes. Another type is the pot bearing, which is a disk made from elastomer enclosed in a steel pot. Under high pressures, the elastomer deforms, allowing for tilting movements around any horizontal axis. Lastly, steel horizontal load bearings are typically used in combination with elastomeric bearings to create a constraint-free connection between superstructure and support structure and to absorb horizontal forces.Leading manufacturers: Agom International, Mageba, Amscot Structural Products, R.J. Watson, Seismic Energy Products, TechStar.

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