Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Tjoern bridge is a cable stayed steel box girder bridge with a 366 m span. Two kinds of field tests were carried out before it was opened to traffic: A forced vibration test (broad-band) and B.free decay test (fundamental mode). The forced vibration test was conducted using swept sine excitation from an especially constructed device acting between the bridge deck and a gravity mass and modal analysis was performed. The free decay test was initiated by sudden release of the bridge from a preloaded condition. The resulting free vibration showed that the damping had a strong amplitude dependence.
The Tjoern bridge is a cable stayed steel box girder bridge with a 366 m span. Two kinds of field tests were carried out before it was opened to traffic: A forced vibration test (broad-band) and B.free decay test (fundamental mode). The forced vibration test was conducted using swept sine excitation from an especially constructed device acting between the bridge deck and a gravity mass and modal analysis was performed. The free decay test was initiated by sudden release of the bridge from a preloaded condition. The resulting free vibration showed that the damping had a strong amplitude dependence.
Modal testing of the Tjoern bridge
Modalpruefung der Tjoern Bruecke
Ohlsson, S. (Autor:in)
1986
7 Seiten, 12 Bilder, 1 Tabelle, 2 Quellen
Aufsatz (Konferenz)
Englisch
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