China Spherical Bridge Bearing Sold to Philippine

Model NO.: Standard


Certificate: ISO9000


Trademark: Kangqiao


Specification: As Customer′s Drawing


HS Code: 4016999000




Material: Rubber with Steel


Usage: Infrastructure Construction


Transport Package: in Pallets or Wooden Cases


Origin: China


Description of Spherical Bridge Bearings

is composed by top plate, base plate, convex middle plate and two Teflon plates of different composition.

Opposite the top plate, it is a concave spherical in the base plate, and the PTFE plate between them. Beam

rotation through spherical surfaces and PTFE plate sliding; stainless steel plate on the top plate and another

PTFE plates on the intermediate steel plate performthe second sliding surface, realized beam stretching

displacement produced by temperature factors.









Features of Spherical Bridge Bearings

Spherical Bridge Bearings transfers force reliably and rotation performance is consistent.

QZ Spherical Bearing for Bridge has great bearing capacity, large displacementand large turning angles, so it is more suitable for

wide bridge and curved bridge. No rubber is used in the Construction material QZ Spherical bridge

bearing so it never happen that brittle rubber caused by low temperature affecting the bearing rotation,

and QZ Spherical bridge bearing is especially suitable for cold areas.







Installation details of Spherical bridge bearing:

1. Spherical bridge bearingshall not be used on bridges where the concrete for the beam, pier and platform

is lower than C35, unless specially approved by the designer.

2.Install Construction material QZ Spherical bridge bearingand anchor bolts: To adjust bearing level putting wedges under bearing base plate, and to make sure

(real factory) QZ Spherical Bearing for Bridge base plate above the pier and platform top 20 ~ 50mm. Center the QZ Spherical bridge bearing to the

right place. Filling in bolt holes and bearing bottom cushion with epoxy mortar.

3. The (real factory) Construction material QZ Spherical bridge bearing shall connect with the beam, pier and platform with the embedded bolts. If necessary, welding to the embedded

steel plate is allowed, but cautions shall be taken to bearing and concrete being damaged by the high heat from

the steel bearing being welded.

4. When installation, the level of the QZ Spherical Bearing for Bridge shall accord with the design, and the supporting face shall be horizontal and

smooth. The difference in height of the four corners of bearing shall not exceed 2mm.

Conservation of QZ Spherical Sliding bearings for bridges:

Regular inspection and maintenance shall be carried out to the QZ Spherical bridge bearing after it is put into use, usually once a year, which

include:

A. Inspect whether the anchor bolt of QZ Spherical bridge bearing is broken, and whether there is any cracking or aging in the sealing rubber.

B. Check the QZ Spherical bridge bearing relative displacement whether uniform, record bearing displacement one by one.

C. Remove the garbage or dust around the QZ Spherical bridge bearing and carefully clean the surface of the stainless steel with cotton waste.

D. Loosen the anchor bolt nut once, clean and oil it to prevent rusting, and then fix it again.

E. Check at a regular point the variation in the QZ Spherical bridge bearing height to see the abrasion of the PTFE plate inside the bearing.

If the variation is greater than 3mm, remove the rubber sealing ring to examine the condition of the PTFE plate.

F. Paint regularly the parts of the QZ Spherical bridge bearing against rusting except the sliding surface of stainless steel.

Vertical load of Spherical bridge bearing:

One-way movable QZ Spherical Bridge bearing (DX): horizontal force in cross-bridge direction is 10% of the capacity of reaction force.

Fixed QZ Spherical bridge bearing (GD): the horizontal force is 10% of the reaction force.

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Product Categories : Spherical Bearing