|
Lead Rubber Bearing (LRB) and
High Damping Rubber Bearing (HDRB) have been practically applied in structures for more than 20 years. The excellent isolation effect and reliability have been globally verified and examined by several actual cases. Therefore, they have been widely used in bridges, buildings, factories and many kinds of structures and provided structures excellent protection against the damages of earthquake. We are the leading company researching & designing Seismically Isolated Bearing in Taiwan and expect to provide you the best quality and economical products.
|
|
|
| Characteristics： |
|
|
Reduce
the seismic loading transiting into structures
(Isolation). |
|
|
|
|
|
Dissipate
the vibration energy and decrease displacement into
structures (Dissipation) |
|
|
|
|
|
Uniformly distribute the loads to main supports of structures. |
|
|
|
|
|
Decrease the stresses in structure caused by creep, shrinkage and thermal expansion/contraction. |
|
|
|
|
|
It is capable of all the functions of normal bearings |
|
|
|
|
|
Reduce the construction cost |
|
|
|
|
|
Enable the bridge being designed as multiple continuous spans and minimum the numbers of joints. |
|
|
|
|
|
Maintenance free and the longevity are longer than 60
years. |
|
|
|
 |
|
Lead
rubber bearing |
|
|
 |
|
|
High Damping Rubber Bearing
|
|
|
|
|
 |
Project: Widening
Project of Wugu-Yangmei section of National Freeway No.1—
Project C904A
Products: Lead Rubber Bearing
Delivery time: 2011
Size & Quantities:
1100mm x 1100mm x 348mm x 20 pcs.
1340mm x 1340mm x 348mm x 36 pcs. |
 |
Project: Jiaosi
Hyatt Apartment III
Products: Lead Rubber Bearing
Delivery time: 2011~2012
Size & Quantities:
ψ920mm x 396mm x 24 pcs.
ψ1020mm x 373mm x 16 pcs.
ψ1230mm x 393mm x 35 pcs. |
 |
Project: Ming-Jhu
Bridge Improvement Construction of Provincial Highway No.3
Products: Lead Rubber Bearing
Delivery time: 2010
Size & Quantities:
670mm x 670mm x 209mm x 16 pcs.
1100mm x 1100mm x 258mm x 24 pcs.
720mm x 720mm x 269mm x 16 pcs.
670mm x 670mm x 122mm x 32 pcs. |
 |
Project: Taichung
Metropolis Road No.2 & No.4 — Project C709A
Products: Lead Rubber Bearing
Delivery time: 2009~2010
Size & Quantities:
750mm x 750mm x 226mm x 68 pcs. |
|
|
|
|
Combination of isolators system
|
1. The period Shift Effect: reduce the horizontal stiffness of structure and shift the period of structure to be a longer period.
2. Energy Dissipation: the damping characteristic decrease both acceleration and displacement.
The most popular isolator systems are the elastomeric pad combined with damper or viscous materials, or sliding damping.
Lead Rubber Bearings are the combination of elastomeric pad and damper.
High Damping Rubber Bearings are the combination of elastomeric pad and viscous materials.
|
|
|
|
Structures without Isolators VS. Structures with Isolators
|
|
When the earthquake occurs, the structures without isolators will move severely together with ground acceleration and the structures with isolators will parallel move slowly. |
 |
|
Buildings without isolators
Buildings with isolators |
 |
|
|
Multiple continuous span bridge
Bridge with isolators
|
|
|
|
Functions of Seismically Isolated Bearing Components
|
Lead Rubber Bearings are squeezed the lead core into the laminated elastomeric bearing, which form a bearing with strong vertical stiffness and low horizontal stiffness. When the huge earthquake occurs, the lead core will dissipated the energy and decrease the displacement during the horizontal deformation.
|
|
|
|
|
High Damping Rubber Bearings are manufactured in the way as laminated elastomeric bearings, except that a special formula of rubber are used to obtain a higher damping characteristic to dissipate the energy and decrease the displacement during the horizontal deformation.
|
|
|
|
|
