Summary

• JQZ range of bridge spherical bearings are a series of bridge standard component products developed in accordance with the national standard "Bridge Spherical Bearings" (GB/T 17955-2009), while referring to and meeting the European standard (EN 1337-7:2004) and other relevant industry specifications (dual standard, multi specification)

• Laser cutting / CNC machining /painting/pressure testing

• Very high producing rate

• Professional team & exquisite workmanship

• Considerable after sale service

• Excellent dimension rate

• Very competitive price

Application

Suitable for various types of bridges in highways, municipal and rail transit, especially curved, sloping, inclined and special complex bridges.

Features

Novel structure

The unique rotating bar structure enhances the rotational and load-bearing performance of the support;

The stainless steel coated spherical crown rotating surface enhances the rotational performance of the support.

Excellent material quality

The wear-resistant material adopts modified ultra-high molecular weight polyethylene, which improves the wear resistance, sliding performance, and service life of the support; The use of high-quality materials has increased the design surface pressure, reduced the size of supports, reduced weight, and lowered project costs.

Easy to install

Flexible design of auxiliary components, using sleeves and anchor bolts to connect with piers and beams, easy to install and maintain.

Parameters

1. Load Capacity

1000kN to 60000kN (vertical force)

2. Horizontal Capacity

JQZ-I (regular type) designed for 10% of the vertical bearing capacity (for fixed and guided /unidirectional movable types)

JQZ-II(seismic type) designed for 15% of the vertical bearing capacity (for fixed and guided /unidirectional movable types)

JQZ-III (seismic type) designed for 22.5% of the vertical bearing capacity (for fixed and guided /unidirectional movable types)

3. Rotation Angle: 

Standard design rotation is generally 0.02rad（approx. 1.15°）allowing universal multi-directional rotation.

4. Applicable range of support temperature:

Normal temperature type: -25℃ ~ +60℃; Cold resistant type is -40℃ ~ -25℃.

5. Friction coefficient

Normal temperatures(-25℃ ~ +60℃): ≤0.03; Low temperatures(-40℃ ~-25℃): ≤0.05.