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From 1974 to 2000, Reto Cantieni, Dr. sc. techn. ETH, dipl. Bauing. ETH/SIA, M. ASCE, M. SEM, has been active at the EMPA Section Concrete Structures. EMPA = Swiss Federal Laboratories for Materials Testing and Research, Duebendorf, Switzerland.

Since 2001, he is the CEO of
rci dynamics, Structural Dynamics Consultants, based in Duebendorf.
At EMPA, Reto Cantien was predominantly treating structural dynamics problems, including vibrations of bridges, buildings (floors), towers and dams (publ.pdf).
In his Ph.D. thesis, Reto Cantieni treated the dynamic vehicle/bridge interaction problem for highway bridges. He is an internationally renowned expert in this field today. (Downloads: diss.pdf, 2003 DACH Zürich Brückendynamik Paper.pdf, 2003 DACH Zürich Brückendynamik PPT.pdf ).
Further main topics in his professional activities were introduction and application of modern technologies to allow identification of the dynamic properties of large civil engineering structures: Forced Vibration Testing (FVT) and Ambient Vibration Testing (AVT). In a next step, these new experimental technologies were combined with analytical methods. This ended up in the so-called updating of Finite Element Models based on the results of FVT or AVT tests. In this matter, we are closely co-operating with the Belgian company Dynamic Design Solution, DDS, Leuven Belgien on of the world-wide leaders in this matter (www.dds.be). A further expert in this field is the Bauhaus University in Weimar, Germany, with their updating software package OptiSlang (kassel 2009).
Based on an updated Finite Element model further investigations concerning the effects of any static or dynamic input to a structure can reliably be determined analytically. This may also include determination of optimum rehabilitation measures.
More details on CV and list of publications of Dr. Reto Cantieni can be found in: CV Cantieni, publ.pdf.