High-Performance Bridge Rubber Bearing for Safe & Stable Structures

Cross-sea bridge pot bearings GPZ1250GD
Pot bearing SPZ1250GD is a medium-load, guided-fixed type component, optimized for medium-span bridge projects that need directional displacement control and basic durability. Its key application scenarios are as follows:Urban Overpasses & FlyoversIt resists lateral forces from crosswinds and vehicle centrifugal force (thanks to restricted transverse displacement ≤ ±5 mm), while allowing ±20 mm longitudinal movement to adapt to temperature changes—ideal for busy urban traffic structures.Rural/Suburban Highway BridgesSuitable for bridges with spans of 10–30 meters. Its 1,250 kN load capacity supports heavy trucks, and the -40℃~+60℃ temperature range adapts to seasonal fluctuations in most rural areas.Small River-Crossing BridgesWith hot-dip galvanization and EPDM seals, it resists humidity and rainwater corrosion. The guided design prevents lateral slippage caused by water flow impact, ensuring long-term stability.Industrial Access BridgesIts high horizontal load capacity (≥ 375 kN) and wear-resistant PTFE sliding plate handle frequent heavy equipment (e.g., 50-ton trucks) passage, meeting the needs of factory or logistics park access.In short, SPZ1250GD excels in scenarios requiring a balance of load-bearing, directional control, and basic corrosion resistance—covering most non-extreme environment medium-span bridges.
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Basin type rubber support GPZ1000GD
Step 1: Basic DefinitionPot bearings are high-performance load-bearing components designed for large-span infrastructure. They mainly support heavy structures and adapt to dynamic stresses, widely used in transportation and construction projects.Step 2: Core Structure (Key Components)Simplified 3-part structure:Cast Steel Basin: Main body for bearing large vertical/horizontal loads;PTFE Slide Plate: Low-friction layer (PTFE = polytetrafluoroethylene) to allow smooth displacements;Sealing/Cushion Parts: Rubber rings (anti-corrosion/dust) or elastic pads (shock absorption).Step 3: Core FunctionsLoad Transfer: Stably pass heavy loads (e.g., train, bridge girder weight) to foundations;Displacement Adaptation: Accommodate movements from temperature changes or vibrations (no structure cracking);Durability: Resist wear, corrosion (for coastal projects), and seismic impacts (in earthquake zones).
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Bridge Rubber Bearing
Rubber bearings are critical load-bearing and vibration-damping components widely used in infrastructure and construction projects. Typically made from high-quality elastomers—such as natural rubber, EPDM (ethylene propylene diene monomer), or neoprene—they are often reinforced with steel plates or fiber layers to balance flexibility and structural strength.Their core functions include three key aspects: first, stably transferring loads from upper structures (e.g., bridge girders, building floors) to foundations, ensuring even force distribution; second, damping vibrations and shocks from earthquakes, vehicle movement, or equipment operation, protecting structural integrity; third, accommodating structural deformations—compensating for displacements and rotations caused by temperature changes or load variations to prevent cracking.Widely applied in highway/railway bridges, high-span factories, stadiums, subway tracks, and airport runways, rubber bearings offer advantages like easy installation, low maintenance costs, and excellent shock absorption. They are tailored to meet diverse engineering needs, from seismic protection in earthquake-prone areas to noise reduction in urban transit projects.
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