Rapid Replacement Bearing

1. Principle

Rapid replacement bearings, which can essentially decrease the duration of bearing replacement, are specially designed for the urban projects.

All bearings can be easily replaced by a precise pre-set fixture by horizontally pulling-out and pushing in without adjusting the bearing position and loosening any of the anchorages.

2. Structure

w Conventional structural bearing, including pot bearing, spherical bearing, etc.

w Rapid replacement steel parts.

3. Application and Advantage

Rapid Replacement Bearing can be widely engineering applied since the following superior performance:

w All the conventional structural bearings’ characteristics

w Convenient to manufacture, install and replace

w High reliability, durability and easy maintenance

4. Types

Rapid Replacement Bearing can be classified into free, guided and fixed types.

5. Raw Materials

The materials used are typically in accordance with AASHTO standard or European standard EN1337 as client’s requirements.

w The structural components of the bearings are made of ASTM A709/A709M Grade 36 or higher quality.

w PTFE surface are made from virgin PTFE resin or blended with fiber (glass or carbon).

w Hard chromium plate (entire convex surface) to be hard chromium with a minimum thickness of 100microns.

w Stainless steel conform to the requirements of ASTM A240/A240M, Type 304 with a minimum thickness of 20 gage.

6. Anchorage system

Anchorage system is used to connect the superstructure and substructure and resist the horizontal force. Typically:

w For steel structure

1. Shear pins

2. Anchor bolts

w For precast concrete structure and cast in situ structure

1. Shear pins

2. Anchor bolts connecting to masonry plate

3. Anchor bolts connecting to threaded socket