What does a seismic approval for an anchor mean?
Seismic Approval for an anchor, is just a document stating the anchor is certified to withstand seismic. However, each anchor will require a set of parameters and the load carrying capacity of the anchor will vary under seismic activity. For example, an anchor which is withstanding a load of 10kN under tension in static load, might carry only 4-6kN depending on the type of anchor.
Hence it is highly recommended to DESIGN UNDER SEISMIC, even though the anchor has Seismic Approval. Without a seismic design, the anchor is in critical condition and the probability of failure is higher. Kindly contact the Hilti personal nearby for providing you complete assistance in the design and support for Seismic.