The main functions of bridge bearings and the classification of rubber bearings provided by Tangshan bridge bearing manufacturer

The main functions of bridge bearings and the classification of rubber bearings provided by Tangshan bridge bearing manufacturer

1. For highway bridges and some small highway bridges, due to their small span, small reaction and deformation of the superstructure, plate rubber bearings are generally used. For bridges across highways, railways, rivers and seas, due to their large span, large reaction and deformation of the superstructure, the basin rubber bearing or spherical bearing is generally selected.

2. In order to ensure its standardization, the bridge design is generally carried out in the form of special drawings. Each design institute directly selects the drawings according to the actual situation in the design. At present, the bearing products forming special drawings mainly include cast steel bearings (including rocker shaft, roller shaft and hinge shaft bearings), pot rubber bearings, cylindrical bearings and spherical bearings. Because of its high bearing capacity, uniform force transmission, good durability and other characteristics, spherical bearings are mostly used in the design of continuous beams and bridges with special requirements. Now they are also gradually replacing the pot rubber bearings in the use of simply-supported beam bridges.

3. For other special bearings, bridge bearings are selected. For highway and railway bridges in the seismic zone, in order to reduce earthquake disasters, seismic bearings or shock-reduction and isolation bearings are mostly selected. For bridges with upward reaction in the superstructure, tension and compression bearings are generally selected. For suspension bridges, cable-stayed bridges and other bridges with floating structures, wind-resistant bearing products are generally required in the transverse direction of the beam body. For coastal and sea-crossing bridges, in order to ensure the service life of bearings, corrosion resistant bearings (generally corrosion resistant spherical bearings) are mostly selected. For bridges across railways, mountains and canyons, in order not to interfere with the railway operation and reduce the construction difficulty, the swivel method is often used for construction, so the swivel spherical hinge products are often used. For the low temperature environment in the high latitude area, in order to ensure the steel stress, the bearings for low temperature are mostly selected.

The above is the content about how to select the appropriate bridge bearing provided by Tangshan bridge bearing manufacturer. If you still don't understand, you can leave a message or contact us.