Changes of dynamic properties of a timber frame due to simulated seismic load: a case study

0443902 - ÚTAM 2016 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Bayer, Jan - Pospíšil, Stanislav - Urushadze, Shota - Kasal, B.
Changes of dynamic properties of a timber frame due to simulated seismic load: a case study.
Engineering mechanics 2015. 21st International conference, May 11-14, 2015, Svratka, Czech Republic. Extended abstracts. Prague: Institute of theoretical and applied mechanics, Academy of Sciences of the Czech Republic, v. v. i., 2015 - (Náprstek, J.; Fischer, C.), s. 18-19. ISBN 978-80-86246-42-0. ISSN 1805-8248.
[Engineering mechanics 2015 /21./. Svratka (CZ), 11.05.2015-14.05.2015]
Institucionální podpora: RVO:68378297
Klíčová slova: modal analysis * frequency response function * structural health monitoring * timber frame * stiffened joints
Kód oboru RIV: JM - Inženýrské stavitelství

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.
Trvalý link: http://hdl.handle.net/11104/0246872