Talks and Poster Presentations (with Proceedings-Entry):

M. Ralbovsky:
"Dynamic behaviour of UHPFRC arch bridge Wild";
Talk: EVACES 2011 conference, Varenna, Italien; 10-03-2011 - 10-05-2011; in: "EVACES 2011 proceedings", (2011), ISBN: 978-88-96225-39-4; 693 - 700.



English abstract:
Bridge "Wild" is the first UHPFRC bridge in Austria. This paper shows first
results of dynamic monitoring on the bridge, including one year of data. A simple automated
frequency identification algorithm in frequency domain is described, which operates without
user interference. Measurement data is analysed in terms of temperature dependence of
eigenfrequencies and damping values. Eigenfrequencies show typical negative correlation with
temperature, while damping values show different pattern. The temperature-driven changes are
analysed numerically using finite element model. Major parameter in this analysis was stiffness
of asphalt concrete layer, as it can be concluded by comparison with measured frequency
changes.

Created from the Publication Database of the AIT Austrian Institute of Technology.