Stravibase Spring* bearings are structural springs used for building base isolation, where an acoustic performance with a resonance frequency lower than 6Hz is required.
Stravibase Spring bearings have a static deflection ranging from 10 mm (0.4'') to 30 mm (1-3/16''). Therefore, these bearings are only recommended for structures that are capable to deal with such a deflection variation during the construction process. If limited deflection during construction is required, pre-compressed spring solutions can be offered – please check our Stravibase SpringBox solution for more information.
Each Stravibase Spring consists of a single or double nested springs with a top and bottom cover plate, including an elastomeric anti-slip layer
2.5Hz to 5Hz natural frequency
Cost effective high-performance solution
Quick and easy installation
Long-lasting and maintenance free
High lateral stiffness
Easily adapted to meet different loads and performance requirements
Natural frequency requirement
Design dead and live loads on each load bearing point (vertical and horizontal
Available load bearing footprint and dimensions as well as locations of any fixing down bolts