Integrated seismic mounts for mechanical equipment are designed to combine spring mount vibration isolation with multi-directional flexible restraint to limit equipment movement under seismic disturbance.
In normal operating situations, the mountings provide vibration isolation generally equivalent to open spring mountings but, when subjected to physical displacements such as those generated by seismic forces, equipment motion relative to the supporting structure is restricted. At the maximum restraint capacity of each mounting type movement is limited to less than 12mm along any major axis.
When correctly selected, integrated seismic mountings will allow conformance to the design requirements of AS 1170, NZS 4219 and other International Seismic Codes.
Embelton offers a wide range of seismic spring mounts for a full range of applications, as well as a rubber seismic mount, and independent seismic restraints. Also available are cable restraints, which are used in conjunction with spring or rubber hangers for the seismic restraint of suspended piping and equipment.
Selecting the correct seismic mount.
Refer to the Isolator Selection Guide to obtain the necessary static deflection, then select the seismic mount required according to equipment load. The dynamic factor needs to be taken into account for all RCMS seismic mounts.All Embelton seismic mounts conform to AS 1170.4, for NZS 4219 the restraint capacity needs to be confirmed for the specific application.
Download Embelton seismic mount datasheets below.