Building Construction Isolation Lead Core Rubber Bearing

Product Details
Customization: Available
After-sales Service: Installation Guide
Warranty: 2 Years After Leaving The Factory
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  • Building Construction Isolation Lead Core Rubber Bearing
  • Building Construction Isolation Lead Core Rubber Bearing
  • Building Construction Isolation Lead Core Rubber Bearing
  • Building Construction Isolation Lead Core Rubber Bearing
  • Building Construction Isolation Lead Core Rubber Bearing
  • Building Construction Isolation Lead Core Rubber Bearing
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  • Overview
  • Product Description
  • Specification
  • Installation
  • Product Details
  • Packaging & Shipping
  • Company Profile
  • FAQ
Overview

Basic Info.

Model NO.
LRB550
Certification
CE/ISO
Usage
Beam Bridge, Highway Bridge, Railroad Bridge, Building
Structure
Laminated Rubber Bearing
Material
Steel Bearing
Activity
Multi Direction Movable Bearing
Technics
Casting
Type
Stand
Application
Bridge, Building
Name
Lead Rubber Bearing for Building Construction Siem
Leading Time
15days
Top Plate Shape
Square/Circle
Print Stanard
ISO Print Standard
Steel Plate Thickness
22-25mm
Transport Package
with Film on Pallet
Specification
CE, ISO
Trademark
HengJingGong
Origin
China
HS Code
40169990
Production Capacity
10000 PCS Per Year

Packaging & Delivery

Package Size
50.00cm * 50.00cm * 20.00cm
Package Gross Weight
100.000kg

Product Description

Building Construction Isolation Lead Core Rubber Bearing
Product Description
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
Lead Rubber Bearing – Excellent in Absorb Energy Dissipation and Seismic Isolation
    Lead rubber bearing, also called lead core rubber bearing, LNR rubber bearing, has similar structure with high damping rubber bearing. It is an important component of seismic isolation bearing. It is composed of laminated rubber bearing and lead core. The lead core can not only bear the heavy load and horizontal force, but also absorb energy through plastic deformation of hysteresis damping.
    Lead rubber bearing can be divided into round and rectangular shapes for different application. Additional, the lead core quantity can be single or multiple to supply maximum flexibility in the bridges or building.
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
Working principle
Building Construction Isolation Lead Core Rubber Bearing
    The lead rubber bearing has same mechanical properties with laminated rubber bearing. Besides, it has high damping property.
    As we all know, the laminated rubber bearing has large displacement deformation in horizontal direction.
    In the earthquake, this structure can separate top and bottom structure vibration, enlarge self vibration cycle and reduce seismic force. Besides, the lead core will be squeezed and yielded during the shear process to dissipate Seismic force.
    After the earthquake, the lead rubber bearing can help building restore the normal position through dynamic recovery and recrystallization of lead core and shear strain of laminated rubber bearing.
Function of lead core bearing pad
*Top and bottom plates: transfer loading and constraint deformation of lead core.

*Lead plug: dissipate energy and decrease displacement.

*Steel reinforcing plates: increase vertical stiffness and constraint deformation of lead core.

*Internal rubber layers: support structure weight, accommodate rotation and displacement, recovery moving bearing to the original position.

*Rubber cover: protect reinforced steel plates and rubber layers.
Performance comparison between lead rubber bearings and ordinary rubber bearings
    There are significant differences in damping performance between lead rubber bearings and ordinary rubber bearings. The damping coefficient of the former typically exceeds 15%, while that of the latter is generally below 5%. This excellent damping property allows lead rubber bearings to effectively extend the structural period of bridges and significantly reduce the acceleration response of the superstructure. Under seismic action, lead rubber bearings can significantly improve the stress state of the structure during the earthquake due to their unique mechanical properties, making them particularly suitable for being set in areas with a seismic intensity of 8 degrees or higher.
Building Construction Isolation Lead Core Rubber Bearing
Specification
*Shear modulus: 0.8 MPa, 1.0 MPa, 1.2 MPa.
*Working temperature range: -25 °C to +60 °C.
*Lead core quantity: single or multiple.
*Shape: rectangular and round.
*Technical parameter
    *Rectangular lead rubber bearing specifications.
    *Round lead rubber bearing specifications.
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
No
Test Item
Technology Requirement
Unit
1
Hardness (Shore A)
60±5
HD
2
Tensile Strength
≥ 18
MPa
3
Elongation At Break
≥ 550
%
4
Compression Set
709 °C × 24 H
≤ 30
%
5
Brittleness Temperature
≤ -50
°C
6
Ozone Aging(50 PPHM, 20% Elongation, 40 °C × 48 H)
No Creak
7
Air Aging
Hardness Change (Shore A)
≤ +6
HD
Tensile Strength Chang Rate
≤ 12
%
-
Elongation At Break Chang Rate
≤ 20
%
Installation
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
Product Details
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
Lead rubber bearing, main branch of seismic isolation system, is widely applied to the large sized structures such as road bridges, rail bridges and nuclear power station to minimize damages from dynamic loads like earthquake.
Packaging & Shipping
Building Construction Isolation Lead Core Rubber Bearing
Company Profile
Building Construction Isolation Lead Core Rubber Bearing
    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 esta  blishing long-term cooperative relationships with customers from both domestic and international markets.
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
Building Construction Isolation Lead Core Rubber Bearing
FAQ
1.When can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry.
2.How long can I expect to get the sample?
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.
3.How long is the delivery time
A:Usually 10-15 days, depending on the quantity purchased.
4.How can I get a sample to check your quality?
A:After negotiating the price, we will provide you with samples for testing.
5.what can you buy from us?
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape
6.What's payment term?
A:T/T, L/C at sight, Western Union

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