Rotational Installation Service, Rotational Spherical Hinge Construction, High-Speed Railway Rotational Spherical Hinge Processing, 120,000 KN Spherical Hinge Consultation and Production

Rotation Installation Services Rotation Spherical Hinge Construction High-Speed Railway Rotation Spherical Hinge Processing 120000KN Spherical Hinge Consultation Production

120000KN Rotation Spherical Hinge Product Introduction and Installation Guide

1. Introduction to 120000KN Rotation Spherical Hinge

The 120000KN (approximately 12,000-ton class) rotation spherical hinge is a specialized device for large-tonnage bridge rotation construction, suitable for rotation construction projects such as long-span bridges, railway interchanges, and overpass bridges. It features high load-bearing capacity, smooth rotation, and precise positioning.

Key Features:

• Ultra-High Load-Bearing Capacity: Designed vertical load capacity up to 120000KN (12,000 tons), suitable for long-span bridge rotation construction.
• Low Friction Coefficient: Utilizes high-strength alloy steel + polytetrafluoroethylene (PTFE) sliding plates, with a friction coefficient ≤0.03, ensuring smooth rotation.
• High-Precision Control: Equipped with hydraulic jacks + intelligent control system, enabling millimeter-level precise rotation positioning.
• Modular Design: Typically composed of upper spherical hinge, lower spherical hinge, sliding layer, locking device, etc., facilitating transportation and installation.
• Seismic Performance: Some models feature seismic buffering functions, suitable for earthquake-prone areas.

Applicable Standards:

• GB/T 17955-2009 "Spherical Bearings for Bridges"
• JT/T 873-2013 "Spherical Bearings for Highway Bridges"
• TB/T 3320-2013 "Spherical Bearings for Railway Bridges"

2. Installation Steps for 120000KN Rotation Spherical Hinge

(1) Pre-Installation Preparation

• Foundation Inspection:

• Check the concrete strength of the pier or rotation foundation (≥C50), with flatness error ≤1mm/m².

• Ensure the position and elevation of pre-embedded anchor bolts meet design requirements.

  • Equipment Inspection:

• Ensure spherical hinge components are free from deformation and rust, and PTFE sliding plates are free from scratches.

  • Hydraulic rotation system (jacks, pump station, control system) must be debugged and functioning normally.
  • Measurement and Positioning:

• Use a total station for precise layout to ensure the spherical hinge center aligns with the bridge rotation center.

  (2) Spherical Hinge Installation

1. Lower Spherical Hinge Installation:

• Hoist the lower spherical hinge onto the foundation's pre-embedded plate and adjust for level (levelness ≤0.02%).

• Secure anchor bolts with high-strength grouting material and cure until design strength is achieved.

  2. Sliding Layer Installation:

• Evenly apply silicone grease lubricant on the surface of the lower spherical hinge and lay the PTFE sliding plates.

  3. Upper Spherical Hinge Installation:

• Hoist the upper spherical hinge and align it with the lower spherical hinge to ensure close contact between surfaces.

  • Temporarily secure with steel wedges to prevent displacement.

  4. Rotation System Connection: