ลูกปืนยาวสำหรับสะพานและการก่อสร้างอาคาร

Contact information
Sales Manager:   Ms Jenny Lee
 Website:             dacheng789.en.made-in-china.com
Company:          Zaoqiang Dacheng Rubber Co.,Ltd.
 
 
 
The description of LRB Bearings 
 
LRB Bearings  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.  





 
The types of seismic isolators
 
1.According to the degree of damping points

(1)LRB Bearings 
LRB Bearings , 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,Testing , packaging and delivery



  OUR LEAD RUBBER BEARINGS ON EXHIBITION

 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.

Our LRB Bearings  in the construction site of bridges and buildings








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.


 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.