Pot Bearing Bridge Bearing for Bridge and Road Construction

• Customization: Available
• After-sales Service: Installation Guide
• Warranty: 2 Years After Leaving The Factory
• Certification: CE/ISO
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Structure: Laminated Rubber Bearing
• Material: Steel Bearing
• Activity: Customization
• Product Name: Pot Bearing
• Model No: Jpz/Gpz/ Jpz/Gpz
• Application: Bridge/Construction
• Surface Treatment: Yes
• Displacement: 50~300m
• Rubber Material: Cr/Nr/Cr/Nr
• Transport Package: Plastic Film Packaging
• Specification: Customized
• Trademark: HengJingGong
• Origin: Hengshui, Hebei, China
• Package Size: 50.00cm * 50.00cm * 25.00cm
• Package Gross Weight: 60.000kg

Product Description

Product Description

Pot Bearing with Large Load Capacity and Large Horizontal Displacement

Pot bearing is a kind of new type bearing which is composed of pot, elastomeric pad, stainless steel plate, sealing ring and other components. It is designed for bearing the combinations of vertical loads, horizontal loads, longitudinal and transverse displacements and rotations. Pot bearing is ideal bearing for large bridge with the features of large horizontal displacement, light weight, simple structure and easy operation.

                                                                                       The main components of pot bearing.

Working Principle

There is an elastomeric pad in the pot of the pot bearing, it has fluid properties when it in the state of three-phase stressed, making use of this feature can achieve large rotation of the bearing. In addition, when a relative motion occurs between the PTFE plate which placed on the piston and the stainless steel plate, horizontal displacement can be achieved. Pot bearing can meet the requirements of large end reaction, large horizontal displacement and large rotation, it is suitable for the bridge with large span and large end reaction.

Categories

In addition, according to the displacement ability, pot bearing can be divided into three types: fixed pot bearing (GD), guided sliding pot bearing (DX) and free sliding pot bearing (SX). Fixed pot bearing and guided sliding pot bearing can also be divided into common pot bearing and damping pot bearing. The appearance of these pot bearings is similar, but the difference of internal structure directly determines whether the bridge can be displaced.

Product Parameters

Different model

Displacement of GPZ Highway Bridge Pot Bearing
End Reaction/Type	Maximum Displacementthe longitudinal direction of bridge (mm)			Maximum Displacementthe transverse direction of bridge (mm)
	GD	SX	DX	GD	SX	DX
1000-3000 kN	0	±50, ±100	±50, ±100	0	±5, ±10	0
3500-9000 kN	0	±100, ±150	±100, ±150	0	±10, ±15	0
10000-30000 kN	0	±150, ±200	±150, ±200	0	±15, ±20	0
32500-50000 kN	0	±200, ±250	±200, ±250	0	±20, ±25	0

Physical Properties of Rubber Materials of Bearing
Item/Rubber Type		Neoprene	Natural Rubber	EPDM
Hardness (shore A)		60 ± 5	60 ± 5	60 ± 5
Tensile Strength		≥17.0	≥17.5	≥15.2
Elongation at Break		≥400%	≥400%	≥350%
Brittleness Temperature		≤-40 °C	≤-50 °C	≤-60 °C
Constant EN Compression Set(70 °C, 22 h)		≤20%	≤25%	≤25%
Resistance of Ozone Aging(Test Condition: 25-50 pphm, 20% Elongation, 40 °C, 96 h)		no cracking	no cracking	no cracking
Air Oven Aging Test	Test Condition(°C × h)	100 × 70	70 × 168	100 × 70
	Reduction Rate of Tensile Strength	<15%	<15%	<15%
	Reduction Rate of Elongation at Break	<40%	<20%	<40%
	Change of Hardness	<+15	<+10	<+10

Displacement of GPZ (KZ) Seismic Highway Bridge Pot Bearing
Specification/Type	Maximum Displacement the longitudinal direction of bridge (mm)			Maximum Displacement the transverse direction of bridge (mm)
	GD	SX	DX	GD	SX	DX
0.8-3	0	±50, ±100, ±150	±50, ±100, ±150	0	±40	±3
3.5-9	0	±100, ±150, ±200	±100, ±150, ±200	0	±40	±3
10-30	0	±150, ±200, ±250	±150, ±200, ±250	0	±40	±3
32.5-60	0	±200, ±250, ±300	±200, ±250, ±300	0	±50	±3

*GPZ highway bridge pot bearing

•  
• Specification
  • Free sliding pot bearing
  • Guided sliding pot bearing
  • Fixed pot bearing

  • Technical parameter

    • Vertical rotation angle of bearing: not less than 40'.
    • Vertical bearing capacity: 1000-50000 kN, it is divided into 28 levels, the horizontal bearing capacity of non-slip surface is 10% of vertical.

    • Friction coefficient

      • Normal temperature type bearing: μ ≤ 0.04.
      • Cold resistant type bearing: μ ≤ 0.064.

  • GPZ (1) highway bridge pot bearing

• • Specification

    • Fixed pot bearing
    • Guided sliding pot bearing
    • Free sliding pot bearing

  • Technical parameters

    • The actual bearing capacity of the pot bearing is 100% of the design bearing capacity, and it allows an overload of 10%.
    • When the pot bearing is between -25 °C and 60 °C, the minimum value of the design friction coefficient is 0.03; when it is between -40 °C and 60 °C, the minimum value of the design friction coefficient is 0.06.
    • The design maximum rotation angle of the pot bearing is 0.02 rad.

• GPZ (2) highway bridge seismic pot bearing

 

• • Specification

    • Fixed pot bearing
    • Guided sliding pot bearing

  • Technical parameter

    • Design bearing capacity of pot bearing: 0.8-60 MN, it is divided into 31 specifications.
    • Rotation angle of pot bearing: 0.02 rad.

    • Design friction coefficient of guided sliding pot bearing (condition: anti-seismic bearing, non-earthquakes, add grease)

      • Normal temperature type bearing: the minimum value is 0.03.
      • Cold resistant type bearing: the minimum value is 0.06.
    • Horizontal force of bearing: seismic fixed pot bearing in all direction and seismic guided sliding pot bearing in non-slip direction is 20% of design bearing capacity.

• GPZ (KZ) highway bridge seismic pot bearing

• • Specification

    • Fixed pot bearing
    • Guided sliding pot bearing
    • Free sliding pot bearing

  • Technical parameter

    • Design reaction of bearing (vertical bearing capacity): 0.8-60 MN, it is divided into 31 specifications.

    • Horizontal bearing capacity

      • The horizontal bearing capacity of fixed pot bearing in all directions is equivalent to 20% of the design reaction.
      • The horizontal bearing capacity of guided sliding pot bearing in the direction that perpendicular to the bridge is equivalent to 20% of the design reaction.
    • Rotation angle of the pot bearing: the design rotation angle of pot bearing is 0.02 rad.

• GPZ (2009) pot bearing

 

• Specification

  • Fixed pot bearing
  • Guided sliding pot bearing
  • Free sliding pot bearing

• Technical parameter

  • Design bearing capacity of pot bearing: 0.4-60 MN, it is divided into 33 levels.
  • The vertical curve inner rotation angle: 0.02 rad, and it adapts to any rotation angle in horizontal curve.
  • The horizontal force that the bearing can withstand: the horizontal force of fixed pot bearing in all directions and guided sliding pot bearing in one direction is 10% of the vertical bearing capacity.

  • Design friction coefficient of pot bearing

    • Normal temperature (-25°C to 60°C): μ ≤ 0.03.
    • Cold resistant (-40°C to 60°C): μ ≤ 0.06.

Packaging & Shipping

Company Profile

Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects. The company boasts advanced technology and mature processes to ensure reliable product quality.

We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to establishing long-term cooperative relationships with customers from both domestic and international markets.

FAQ

1. who are we?
We are based in Hebei, China, start from 2013,sell to Domestic Market(40.00%),Southeast Asia(23.00%),Africa(16.00%),North America(7.00%),South America(7.00%),Western Europe(7.00%). There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Bridge Expansion Joint,Rubber Waterstop,Swelling Waterstop Strip,Seismic Isolation Bearing,Rubber Bearing Pad

4. why should you buy from us not from other suppliers?
1.More than 20 professional senior technical personnel.
2.There are 10 series,over 200 species and more than 2,000 specifications.
3.All products have been authenticated by the Ministry of Communications.
4.Self-research and development,professional.

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,CIP,FCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese