Hengshui, Hebei, China
Member Since: 2017
Business Type: Manufacturer/Factory,Trading Company
Hot sale Bridge building rubber isolation bearing with lead core manufacturer
Lead Core Rubber Isolation Bearing for Highway and Bridge are rubber bearings made up of alternate layers of steel laminates and hot vulcanized rubber with a cilindrical central lead core. The rubber in the bearing 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. The lead core provides damping by deforming plastically when the isolator moves laterally in an earthquake.
|Hardness||45 to 55||55 to 65||65 to 75||45 to 55||55 to 65||65 to 75|
|Tensile||2250 psi||2250 psi||2250 psi||2500 psi||2500 psi||2500 psi|
|Compression||35% at 212 °F||35% at 212 °F||35% at 212 °F||25% at 158 °F||25% at 158 °F||25% at 158 °F|
◊ Stiff and strong in vertical direction but flexible in horizontal direction.
◊ Absorb earthquake-generated force by changing the bearing's shape.
◊ Allow the buildings to retain their original shapes and position owing to the high elastic force of rubber.
◊ Capable to adjust damping amount just by changing the number of lead plugs.
◊ Excellent vertical load capacity ranging from 5 tonf to 2000 tonf.
◊ Reduce the ground acceleration by extending the structure vibration period.
◊ High durable and elasticity of the rubber part - not suffer any damages during and after earthquake.
◊ Easy to install without a separated damper.
◊ Low maintenance.
◊ With stable bi-linear behavior shown as the above picture.
◊ Low maintenance.
Packing Details: Platic film and pallets.
Delivery Details: 10-25 days after deposite,the specific delivery time depends on the items and the quantity of your order.
How does Seismic Isolation Lead Rubber Bearing work?
Lead rubber bearing avoids deformations and damages to buildings.During the earthquake, the un-isolated building will vibrate back and forth in varying directions due to the inertial forces and result in deformation and damages of the building. In contrast, the base isolated building will also displace but remains its original shapes and avoid damages - that is because the lead rubber bearing effectively dissipates the inertial force upon the building, extends the building's period of vibration and decrease the acceleration of the building.
The lead plug will slid with laminated rubber during earthquake but convert this energy of movement to heat so that it efficiently reduces the inertial force upon the building, which slow the vibration of the building. Meanwhile, the rubber part will preserve its original shape due to high elasticity.
Terms of payment:T/T 30% as deposit, and 70% before shipping. We'll show you the photos of the products and packages before you pay the balance.
Flexible trading ways: Free samples available. Ocean, air and railway transport.
Rich Experience:professional international trade team, has been servicing the China and foreign construction industry and businesses for over 20 years. It is devoted to provide high quality products and solution to clients.
Product involved:Providing a large range of waterstops, waterstop strips, bridge bearings and expansion joints with different materials, and sizes.
Developing business:Our products are mainly used in road and bridge construction engineering materials,and has been exported to many countries.
Technical development:Our engineers are able to provide different designs of products and develop various new products to meet customers' individual needs.
Our principle :Quality first, reputation first, service first, after-sales first!