KRAWTSCHUK, ALEXANDER1; ZEMAN, OLIVER2; SCHELLANDER, JANEZ3; ZIMMERMANN, THOMAS4; STRAUSS, ALFRED5

1) Dipl.-Ing., Institute for Structural Engineering, University of Natural Resources and Life Sciences, Vienna, alexander.krawtschuk@boku.ac.at

2) Dipl.-Ing., Institute for Structural Engineering, University of Natural Resources and Life Sciences, Vienna, oliver.zeman@boku.ac.at

3) Dipl.-Ing., Institute for Structural Engineering, University of Natural Resources and Life Sciences, Vienna, janez.schellander@boku.ac.at

4) Dipl.-Ing. Dr., Institute for Structural Engineering, University of Natural Resources and Life Sciences, Vienna, thomas.zimmermann@boku.ac.at

5) Dipl.-Ing. Dr. Assoc.Prof., Institute for Structural Engineering, University of Natural Resources and Life Sciences, Vienna, alfred.strauss@boku.ac.at

Arch bridges made from nature stone or masonry, are the oldest structures still in use on road and railway lines. In this contribution a large scale model of an existing arch bridge was built and tested in a laboratory. The considered arch bridge “Rohrbach Bridge” was modelled with the size of 3.0 m length and an arch rise of 1.0 m which means a scale of 1:2. This model was equipped with an adequate monitoring system (LVDTs, strain gauges, laser), which has also been used at the real structure. Also horizontal loading situations were modelled by static horizontal loads. Further a horizontal impact test was conducted for simulation of a natural hazard (e.g. mudflow). The main goal of this contribution is to optimise the monitoring system for masonry arch bridges by comparing in-situ measurement data, laboratory tests and results from finite element modelling.

Keywords: Masonry arch bridges, Monitoring concepts, Measurement concepts