GPZ(II)4SXmm Pot Bearing Processing for Bridge Use, Inquire with Me to Place an Order.

GPZ(II)4SXmm Pot Bearing Processing Bridge Bearings Contact Me for Ordering

JPZ (II) Pot Bearing Product Introduction and Construction Guide

JPZ (II) pot bearings are a type of high-performance bearing commonly used in bridges, buildings, and other engineering projects. As a second-generation improved product, they offer enhanced load-bearing capacity, displacement adaptability, and durability. Suitable for long-span bridges and heavy-load structures, they effectively transfer loads and accommodate structural deformations.

1. Product Features

• High Load-Bearing Capacity: Made from high-strength steel and high-quality rubber composite materials, capable of withstanding significant vertical and horizontal loads.
• Multi-Directional Displacement Adaptation:
  • Fixed Type (GD): Allows rotation only, GPZ(II)4SXmm Pot Bearing Processing Bridge Bearings Contact Me for Ordering restricts horizontal and vertical displacement.
  • Unidirectional Activity Type (DX): Permits horizontal movement in one direction (longitudinal or transverse).
  • Bidirectional Activity Type (SX): Allows free horizontal movement in both directions.
• Strong Durability: Utilizes multi-layer rubber sealing rings, stainless steel sliding plates, and anti-corrosion coatings to extend service life.
• Excellent Seismic Performance: Optimized design accommodates large displacement demands during earthquakes.
• Standardized Installation: Designed in compliance with the **GB/T 17955 "Bridge Pot Bearings"** standard, facilitating construction adjustments.

2. Applicable Engineering Scope

• Highway Bridges (box girders, T-beams, continuous beams, etc.)
• Railway Bridges (high-speed railways, heavy-haul railways)
• Urban Viaducts and Interchanges
• Long-Span Building Structures (stadiums, exhibition centers, etc.)
• Special Engineering Projects (hydropower stations, nuclear power plants, etc.)

3. Construction and Installation Guide

(1) Pre-Construction Preparation

1. Bearing Selection: Choose the appropriate model (GD/DX/SX) based on design load, displacement (horizontal, rotational), GPZ(II)4SXmm Pot Bearing Processing Bridge Bearings Contact Me for Ordering and seismic requirements.
2. Inspect the Bearing: Ensure no deformation or cracks; keep sliding surfaces clean and free of impurities.
3. Measurement and Layout: Accurately mark the installation position of the bearing, ensuring elevation and levelness meet design requirements.

(2) Installation Steps

• Fixed Bearing (GD Type)

  1. Embedded Steel Plate Installation: Pre-embed the lower steel plate of the bearing on the pier or abutment, ensuring flatness.
  2. Bearing Placement: Hoist the bearing to the design position and adjust for levelness and elevation.
  3. Grouting Fixation: Use high-strength non-shrink grouting material to fill the bottom of the bearing, ensuring compactness.

• Movable Bearing (DX/SX Type)

  1. Install Lower Plate: Pre-embed and level the lower plate, ensuring correct sliding direction.
  2. Place Bearing Main Body: Hoist the bearing, ensure the sliding surface is clean, and apply lubricating silicone grease.
  3. Install Upper Plate: Weld or bolt connect to the pre-embedded steel plate at the beam bottom, ensuring levelness.

(3) Construction Quality Control

• Horizontal Deviation ≤ 1mm
• Elevation Error ≤ 2mm
• Sliding Surface Clean and Uncontaminated, ensuring free sliding
• Grouting Compactness, no voids

(4) Post-Installation Inspection

• Check if the bearing is in close contact with the beam and pier/abutment.
• Perform simulated load tests (if necessary) to verify bearing performance.
• Regularly inspect bearing displacement and rubber aging during long-term use.

4. Maintenance and Care

• Regular Inspection (every 3~5 years): Observe rubber sealing rings, sliding surface wear, and corrosion.
• Cleaning and Lubrication: Remove dust and debris; replenish silicone grease lubricant.
• Abnormality Handling: If restricted displacement, abnormal noise, or deformation is detected, repair or replace promptly.