Bridge Engineering Blog & Technical Insights

Bridge bearings, as an important component of bridges, play a crucial role in the overall structure of the bridge. They make the bridge a cohesive whole, and bridge bearings are also an important supporting part of the bridge span structure. They are important components that connect the upper and lower structures of the bridge It can transmit the supporting reaction force of the bridge span structure to the bridge piers, and it also needs to ensure that the bridge span structure has some static conditions required by the design under the action of load and temperature changes, so as to adapt to the needs of beam rotation and free expansion and contraction And it should also have the function of easy installation, maintenance, and upkeep. The support must also be able to ensure sufficient fixation on the pier and abutment, and cannot slide off The quality of bridge bearings directly affects the entire structure of the bridge, so research on bridge bearings is very important

The function of the support is to transmit various loads of the upper structure and adapt to displacement caused by factors such as temperature, shrinkage, and creep.

Generally divided into fixed supports and movable supports. Fixed supports mainly constrain vertical displacement and horizontal displacement, while movable supports may constrain vertical displacement and displacement in a certain horizontal direction.