Steel plate reinforced elastomeric isolators:
These isolators which are typically employed with fixed boundary conditions are frequently used as ideal isolators for large structures such as hospitals, public buildings, large residential, commercial, and office buildings, bridges, and other similar constructions. LBK Ltd. offers two types of these isolators that can be chosen based on the seismic activity of the region.
Low-damped rubber + supplemental U-shaped metallic dampers: suitable for very-high to high seismic hazard regions.
High-damped rubber isolators:
suitable for high to moderate seismic regions.
Steel mesh reinforced or fiber reinforced elastomeric isolators:
These isolators can be used with partially bonded or unbonded boundary conditions, depending on the project needs. Compared to steel plate reinforced isolators, these isolators are laterally more flexible due to their rollover deformation under shear loads. These isolators are known as pseudo-rolling elastomeric isolators. The improved lateral flexibility makes them ideal for medium to small structures, including police and fire-fighter stations, low-rise residential, commercial, office, and school buildings, as well as bridges. They are also effective for seismic isolation of heavy industrial equipment units like power transformers, boilers, and reactors. Depending on the project, these isolators may include LBK’s supplemental u-shaped metallic dampers.