Pot Bearing – High-Capacity Bearing for Bridges And Structural Engineering

Pot bearings are structural components used in bridges and large-scale buildings to transfer loads from the superstructure to the substructure. They accommodate rotation and horizontal displacement caused by thermal expansion, concrete shrinkage, and traffic loads. With compact design and high load capacity, they are suitable for highway bridges, railway bridges, urban viaducts, and long-span structures.

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Key Applications

Highway Bridges：Supports girder loads; accommodates thermal movement and braking forces
Railway Bridges：Meets stiffness and displacement requirements for rail traffic
Urban Viaducts：Adapts to complex alignments; releases thermal stress
Curved Bridges：Works with guided bearings to resist centrifugal forces
Long-Span Bridges：Suitable for continuous girder, cable-stayed, and suspension bridges

Key Features

Feature	Description
Load Capacity	Customized based on bridge design to meet project requirements
Rotation Accommodation	Elastomeric disc allows rotation to adapt to girder deformation
Horizontal Movement	Allows displacement in horizontal directions to accommodate bridge expansion
Sealed Design	Sealing reduces exposure of internal components, minimizing corrosion risk
Anti-Corrosion Coating	Steel components are coated for outdoor bridge environments

Product Types

Type	Function
Fixed Bearing	Supports vertical load; restricts horizontal movement
Guided Sliding Bearing	Allows movement in one direction
Free-Sliding Bearing	Allows movement in all horizontal directions
Guided Bearing (Radial)	Guides movement along a curved path

Application Reference

Application Scenario	Bearing Type	Function
Highway Bridges	Fixed / Sliding / Guided Bearings	Support vertical loads; accommodate thermal expansion and braking forces
Long-Span Bridges	Fixed Bearings / Expansion Bearings	Manage large rotations and displacements; transfer huge loads safely
Curved Bridges	Guided Bearings (Radial Type)	Guide movement along a curved path; resist centrifugal forces
Urban Viaducts	Multi-directional Sliding Bearings	Allow free horizontal movement in all directions; simplify complex urban alignments