Seismic Isolation Bearing Lrb Lead Rubber Bearing for Bridge and Building

• Customization: Available
• After-sales Service: Technical Guidance
• Warranty: 2 Years After Leaving The Factory
• Model NO.: JT-SIBP-02
• Certification: CE/ISO
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge, Building
• Structure: Laminated Rubber Bearing
• Material: Steel Bearing
• Activity: Multi Direction Movable Bearing
• Application: Building Base Structure
• Surface Treatment: High Temperature Premolding
• Technics: High Temperature Premolding
• Type: Construction Seismic Rubber Products
• Component: Reinforcing Plates, Top and Bottom Plate
• Elongation at Break: ≥450%
• Hardness: 45±5 Shore a
• OEM: Acceptable
• Standard: En 15129, En 1337, En 10025, En 12944
• FPC Test: 30~100%
• Type Test: Available
• Transport Package: Plastic Bag, Pallet, Container
• Specification: LRB 400/450/500/550/600/650/700750/800/900/1000
• Trademark: HengJingGong
• Origin: China
• HS Code: 40169990
• Production Capacity: 100 Sets/Week
• Package Size: 25.00cm * 25.00cm * 15.00cm
• Package Gross Weight: 50.000kg

Product Description

Product Description

LRB Lead Rubber bearing for Bridge seismic Isolation
Base Isolation LRB lead rubber bearings work on the principle of base isolation and limits the energy transferred from the ground to the structure in the event of an earthquake. Base Isolation Lead Rubber Bearings (LRB) consists of a laminated rubber and steel bearing with steel flange plates for mounting to the structure. All isolators have an energy dissipating lead core. The rubber in the isolator acts as a spring. It is very soft laterally but very stiff vertically. The high vertical stiffness is achieved by having thin layers of rubber reinforced by steel shims. These two characteristics allow the isolator to move laterally with relatively low stiffness yet carry significant axial load due to their high vertical stiffness. The lead core provides damping by deforming plastically when the isolator moves laterally in an earthquake.

LRB Lead Rubber bearing for Bridge seismic Isolation 
    Excellent durability of rubber: LRB applies special additives for the rubber, yielding stable mechanic properties: tensile strength, ultimate elongation and adhesive strength.

    Stable Bilinear behavior:LRB demonstrates stable bilinear behavior, resulting in a more accurate structural analysis, since bilinear simulation accurately simulates real-world scenarios.

+ Vertical load applied:5 tonf~2000 tonf.
+ Easy design to accommodate different structural properties.
+ Easy installation, low cost maintenance.
+ Effectively reduce the ground acceleration, long durability.
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.

Product Parameters

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	%

Detailed Photos

LRB Lead Rubber bearing for Bridge seismic Isolation

 

Testing facilities - Rubber Physical Property

* Tensile Properties Test
* Hardness Test (ASTM Shore A, IRHD)
* Hot Air Heat Aging Test
* Compression Set Test
* Ozone Resistance Test
* Moisture Content Test (Chemicals, Fillers & Compounded Rubbers)
* Quadruple Shear Test
* ISO/DIN Abrasion Resistance Test
* Low Temperature Brittleness Test

* Density/SG Test
* Tear Resistance Test
* Flame Retardant Test
* Fluid/Oil Immersion Test
* Rebound Resilience Test

Packaging & Shipping

Company Profile

HENGSHUI JINGTONG RUBBER Co., Ltd located in Hengshui City, hebei provice, where very close to TianJin City, Beijing city, 

 

that be of convenient transportion.It covers an area of 200 thousand square meters, including 3000m² workshop, and 2000m² for testing, there are more than 200 employees, including 10 engineers and 10 testing workers.
We are specializes in manufacturing and exporting bridge bearings, waterstop waterproof materials, Culvert & Pipeline Inflated Rubber Balloons since the establishment in 2007.
Our products including construction waterproof materials, bridge and building rubber bearings, culvert and pipeline rubber airbag etc. Which are widly used in brige highway, culvert, pipeline, building constructions. Adhering to the principle that quality determines the success and failures. Our company can provide different types of products to meet the different needs of customers.
Our products export to Malaysia, Kenya, Uganda, USA etc. markets,that has passed ISO, GB etc. Inspection and provide the third party reports with more than 3000 projects in domestic and overboard.To suit your specific scheme, we can design and produce as your designs, even with complex profiles and different materials. So if you want to make a custom order, don′t forget to enclose your design drawing, sizes and standards.
We sincerely welcome domestic and foreign traders and businessmen to visit us for guidance, cooperation and development! Sincerely look forward to establishing and developing trade partnership with you 

 

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

Contact Us

 HENGSHUI JINGTONG RUBBER CO., LTD

 Contactor: Nancy Lee (Oversea Market Manager)

Phone Number: [phone] / [phone] 

 Office: #1202, Huizhong Building, Taocheng district, Hengshui City,053000, Hebei Province, China.

 Factory: NanWangZhuang Village, Pengdu Town, BinHu District, HengShui city, 053000, China.

Welcome your inquiry !