National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Changes of dynamic properties of a timber frame due to simulated seismic load: a case study
Bayer, Jan ; Pospíšil, Stanislav ; Urushadze, Shota ; Kasal, B.
The data from a laboratory seismic resistance test of a three-story timber frame stiffened with steel joints were used to compare sweep and random excitation techniques on the platform of experimental modal analysis. The changes of mechanical properties due to increasing seismic load of the timber structure are demonstrated on corresponding changes of vibration modes and on changes of averaged frequency response functions. The comparison of averaged frequency response functions turned out to be at least as efficient tool for damage indication as the comparison of modal properties in this case. The experiences obtained in this case study are aimed at increasing the efficiency of dynamic tests and methods of Structural Health Monitoring.
Timber frame resistant against earthquake
Pospíšil, Stanislav ; Kasal, Bohumil ; Drdácký, Miloš
Experimental research and development of earthquake resistant timber frame joints are described in the paper. Reduced and full scale models were tested on shaking tables. The joints are strengthened with FRP sheets.

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