LRB for buildings

Building seismic isolation technique uses the isolation layer to develop the function of “isolation”, and separates the superstructures and substructures. As the hardness of the isolation layer is small, it will effectively reduce 70%-90% earthquake response, which equals to reducing 1-2 degree of seismic intensity and cut 5-20% engineering costs. Seismic isolators for buildings are widely used in lifeline engineering, major construction projects and ordinary housing construction. Besides the new established engineering, building seismic insulator is also widely applied in improvement and reinforcement of the old buildings regarding as a geat leap in seismic isolation technique.

PRODUCT DETAIL

Consists of laminated rubber bearing and lead core. Lead rubber bearing is also called lead core rubber bearing, seismic resistance bearing, its structure is similar to high damping rubber bearing. It is an important part of the isolation bearing. The lead core can not only withstand heavy loads and horizontal forces, but also absorb energy through hysteresis damped plastic deformation. Lead-rubber bearings are a practical and cost-effective seismic isolation option for building and bridge structures.

Lead rubber bearing construction

1. Lead plug: dissipate energy and reduce displacement of rubber bearing.

2. Rubber cover: protect the reinforced steel plate and rubber layer.

3. Top and bottom plates: the transfer load and restraint deformation of the lead core.

4. Reinforcing steel plate: increase the vertical stiffness and restraint deformation of the lead core.

5. Internal rubber layer: supports the weight of the structure, adapts to rotation and displacement and restores the mobile bearing to its original position.