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Jingtong rubber Isolator bearing (LRB) , lead core bridge rubber bearing
Lead Rubber Bearing or LRB is a type of base isolation employing a heavy damping. It was invented by William Robinson, a New Zealander. Heavy damping mechanism incorporated invibration control technologies and, particularly, in base isolation devices, is often considered a valuable source of suppressing vibrations thus enhancing a building's seismic performance.
| Size a or do (mm) |
Thickness | Thickness | Modulus of second shape |
Ratio of Lead core area to bearing area Ap/A(%) |
|
| Internal Single Rubber Layer t1 (mm) |
Internal Single Layer t1 (mm) |
||||
| 400 | 20≥t1≥11 | ≥3 | ≥4 | ≥3 | ≤10 |
| 450 | 20≥t1≥11 | ||||
| 500 | 20≥t1≥11 | ||||
| 600 | 25≥t1≥13 | ||||
| 650 | 27≥t1≥14 | ||||
| 700 | 29≥t1≥15 | ||||
| 750 | 31≥t1≥16 | ||||
| 800 | 33≥t1≥17 | ||||
| 850 | 35≥t1≥18 | ||||
| 900 | 37≥t1≥19 | ||||
| 950 | 39≥t1≥20 | ||||
| 1000 | 41≥t1≥21 | ||||
| 1050 | 43≥t1≥22 | ||||
| 1100 | 45≥t1≥23 | ||||
| 1150 | 47≥t1≥24 | ||||
| 1200 | 50≥t1≥25 | ||||
| 1250 | 52≥t1≥27 | ||||
| 1300 | 54≥t1≥28 | ||||
| 1350 | 56≥t1≥29 | ||||
| 1400 | 58≥t1≥30 | ||||
| 1450 | 60≥t1≥31 | ||||
| 1500 | 62≥t1≥32 |
Base isolation is a technique developed to prevent or minimise damage to buildings during an earthquake. It has been used in New Zealand, as well as in India, Japan, Italy and the USA.
A fixed-base building (built directly on the ground) will move with an earthquake's motion and can sustain extensive damage as a result.
When a building is built away (isolated) from the ground, resting on flexible bearings or pads known as base isolators, it will only move a little or not at all during an earthquake.
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
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