JQZ(II)-15000kN Spherical Bearing Manufacturer Specializes in Producing Highway Bridge Spherical Bearings, Contact Me for Consultation

Introduction and Installation Guide for JQZ(II) Spherical Bearings

1. Introduction to JQZ(II) Spherical Bearings

JQZ(II) spherical bearings are a type of spherical steel bearing suitable for structures such as bridges and buildings. They belong to fixed or unidirectional/multidirectional sliding bearings, featuring high load-bearing capacity, flexible rotation, and excellent durability.

Main Features:

• Structural Composition: Consists of an upper bearing plate, lower bearing plate, spherical crown liner plate, JQZ(II)-15000kN Spherical Bearing Manufacturer Specializes in Producing Highway Bridge Spherical Bearings, Contact Me for Consultation polytetrafluoroethylene sliding plate (PTFE), stainless steel plate, etc.
• Load-Bearing Capacity: Capable of withstanding vertical pressure, horizontal forces, and rotational displacement, suitable for long-span bridges, high-pier bridges, etc.
• Low Friction Coefficient: Utilizes PTFE sliding plates with a small friction coefficient (typically ≤0.03), accommodating bridge expansion and contraction deformations.
• Seismic Performance: Some models are equipped with seismic functions, making them suitable for earthquake-prone areas.

Applicable Standards:

• GB/T 17955-2009 "Spherical Bearings for Bridges"
• JT/T 873-2013 "Spherical Bearings for Highway Bridges"

2. Installation Steps for JQZ(II) Spherical Bearings

(1) Pre-Installation Preparation

• Check Bearing Model: Verify the design drawings to ensure the bearing specifications, JQZ(II)-15000kN Spherical Bearing Manufacturer Specializes in Producing Highway Bridge Spherical Bearings, Contact Me for Consultation model, and direction (fixed/sliding) are correct.
• Check Embedded Parts: Ensure the embedded steel plates on the pier or beam bottom are flat, clean, and free from rust, oil stains, etc.
• Measurement and Positioning: Use a total station or level for precise layout, ensuring the centerline of the bearing aligns with the bridge axis.

(2) Bearing Installation

1. Temporary Fixation of Bearings:

• Use temporary supports or bolts to secure the bearings and prevent displacement.

• Check the levelness of the bearings; the error should be ≤2mm.

  2. Welding or Anchoring:

• Welding Method: Weld the bearing base plate to the embedded steel plate using symmetrical segmented welding to avoid thermal deformation.

• Anchoring Method: Use high-strength bolts for fixation, tightening them to the design torque.

3. Installation of the Beam Body:

• During beam hoisting, ensure slow and steady lowering to avoid impacting the bearings.

  • Check for uniform contact between the bearings and the beam bottom, ensuring no suspension occurs.