Lead rubber bearing is based on general laminated rubber bearings,pouring the lead into the bearing center, which is a seismic bearing damping performance improvement of rubber bearings. By changing the lead core section size of the bearings, lead rubber bearing can change the effective level of equivalent stiffness and equivalent damping ratio. Our production capacity is not limited to this, please send your requirements to us.
HALF FINISHED PRODUCTS
Bridge bearings and expansion joint are important parts of whole bridge components, but the amount money that spent on bridge bearing and expansion joint is only 2-3.5%, it is absolutely a wise choice to evaluate it within the whole project to prevent failed choice bringing unnecessary costs.
The types of isolation bearings
1.According to the degree of dampingpoints
(1)Lead rubber bearings LRB rubber bearing, applied to building and bridge constructions, is a practical and cost-effective choice for seismic isolation. It is composed of laminated elastomeric bearing pad, with lead in the center of bearing.This series of bearing is suitable for 8 degrees and the earthquake intensity area of highway and municipal bridge.
(2)High damping rubber bearings Its structure is the same as ordinary laminated rubber bearings, high damping rubber bearing is improved through rubber formula, so that the rubber material damping is increased, so that the bearing's damping ratio can reach 15-18%. This series of bearing is suitable for 9 degrees earthquake intensity area of highway and municipal bridge.
CLIENTS CAME TO CHECK FINISHED PRODUCTS
LEAD RUBBER BEARING,IN THE MIDDLE OF TESTING.
PACKAGED AND DELIVERY
OUR LEAD RUBBER BEARINGS ON EXHIBITION
The advantage of isolation bearings
1.Stiff and strong in vertical direction but flexible in horizontal direction. 2.Allow the buildings to retain their original shapes and position owing to the high elastic force of rubber. 3.Capable to adjust damping amount just by changing the number of lead plugs. 4.Excellent vertical load capacity ranging from 5 tons to 2000 tons. 5.Reduce the ground acceleration by extending the structure vibration period. 6.High durable and elasticity of the rubber part - not suffer any damages during and after earthquake. 7.Easy to install without a separated damper. 8.Low maintenance. 9.Stable bilinear behavior.
As your request, the lead rubber bearing can be manufactured in rectangular or round shapes. Custom sizes and designs are also welcomed.
Q : Where is the lead rubber bearing used to?
A:The product has been successfully used in a broad range of applications which include: bridges, viaducts, high rise buildings, stadiums and dams.
Q : What is the good successful case of the isolation bearing
A:In fact, as early as the mid-1990-s, building isolation rubber bearing showed its excellent isolationperformance. The region of an earthquake, Osaka and kobe, Japan is the real one. On January 17, 1995, Japan kobea 7.2 -magnitude earthquake, caused the shocking heavy losses. In the earthquake, 35 kilometers from the epicenter of the west of the men in the post office base isolation technology has played a very good isolationdamping effect, it is in the field of earthquake hazard level has reached the degree of 7 (equivalent to China's earthquake intensity of 9~10 degrees), in the earthquake and after the earthquake, the whole building is as usual.
Q: How can I get some samples? A:We are honored to offer you samples. New clients are expected to pay for the postage, the samples are free for you, this charge will be deducted from the payment for formal order.