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Klinik Gais hospital, Appenzell

Seismic safety assessment and retrofit

The Klinik Gais hospital in Appenzell opened in 1965 and was repeatedly extended in the years up to 2008. As a result of the various additions and modifications, the building consists of a large number of interconnected sections constructed using a variety of methods. Today the hospital specializes in cardiac (heart) and psychosomatic/psychotherapeutic (burnout) rehabilitation.
Following modifications to the 7-floor ward block, Klinik Gais AG commissioned us to carry out a seismic safety assessment of the entire hospital. Given the low compliance factor (low seismic safety), a phased seismic retrofit of the ward block is now being carried out.
The biggest challenges are ensuring the work does not interfere with normal hospital operations and mini-mizing structure-borne and airborne noise as much as possible.
The buildings, most of which are masonry walled, will be retrofitted by means of "seismic wallpaper".


Gruner Wepf AG, St. Gallen
Oberstrasse 153
9000 St. Gallen
T +41 71 272 25 35
F +41 71 272 25 45
Contact Person
Stephan Hofer
T +41 71 272 25 30
Stephan Hofer Gruner AG