A bridge bearing is a product widely used in bridge construction to provide excellent absorption and transfer of external forces from the superstructure to the foundations. Meanwhile, it allows for stable rotations in any axis and horizontal sliding movements to reduce the forces upon bridges and buildings. Bridge bearings are not only used in bridge construction, but also can be applied to highways, roads, docks, airports, buildings and other applications where large and heavy objects need to operate safely.
Different bridge bearings have different appearances, but all of them are in small size, which means they are smaller than bridge deck sometimes even the piers they sit on. Taking advantages of the small size, all forces converge on a small point and to be transferred to the foundation through a very compact line. In this way, it effectively decreases the shearing force and provide higher security during the transference.
There are ten main types of bridges bearings are supplied to meet your different needs. Some specific designs are also available as your request.
Laminated elastomeric bearings with reinforced steel plates have higher longitudinal and compression strength and allow for rotations in any axis.
PTFE top elastomeric bearings utilize sliding surface and lubricant to reduce sliding resistance and it is suitable for bridges with large spans, etc.
Lead rubber bearings feature central lead plug, are widest used for building or bridges to proof earthquake and avoid deformation and damage to the building.
High damping rubber bearing, made of quality rubber with damping ability and laminated layers of steel, is used as a seismic isolator of building or bridges.
This paper mainly studies the importance and advantages of isolation design in bridge, the design principle of bridge isolation and the application of common isolation technology.
This paper analyzes the necessity to enhance the seismic performance of the masonry structure by dynamic response analysis of isolated structures based on numeral calculations and shaking table tests.
Over the years, with rapidly economic development, all walks of life also make great progress.So we must continue to improve the level of building seismic design, this article is in-depth discussion.
This paper mainly presents the seismic isolation design and installation of steel steel frame buildings which mainly take advantage of HDR(High Damping Rubber Bearing). Steel damping rubber can prompt the early return of the funds.