Vienna Consulting Engineers VCE

Vienna, Austria

Vienna Consulting Engineers VCE

Vienna, Austria
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Achs G.,Vienna Consulting Engineers VCE | Adam C.,University of Innsbruck
Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012 | Year: 2012

This paper addresses the identification of the global dynamic behavior of a historic residential brick-masonry building located in Vienna. Primarily in-situ measurements of the free vibrations induced by an impact-like load and subsequent signal processing leads to natural frequencies, mode shapes, and modal damping parameters of the structure. Furthermore, the influence of non-structural partition walls is revealed by means of two identical measurement campaigns before and after the removal of all relevant partition walls. In a comparative numerical analysis a three-dimensional Finite-Element model is used to verify the experimental results and to determine the global shape of the vibration modes. Based on a simple mechanical model the global stiffness degradation originating from removing the partition walls is quantified.


Kopf F.,Vienna Consulting Engineers VCE | Schafer D.,Vienna Consulting Engineers VCE | Pietsch M.,Vienna Consulting Engineers VCE | Rossbacher L.,Vienna Consulting Engineers VCE
Life-Cycle and Sustainability of Civil Infrastructure Systems - Proceedings of the 3rd International Symposium on Life-Cycle Civil Engineering, IALCCE 2012 | Year: 2012

Intensive scientifical works in the field of earthquake research caused the classification of new earthquake zones in wide areas of Europe. The introduction of the compulsory Eurocode 8 changed the estimation of earthquake risk for buildings in Austria's cities significantly. In order to eliminate this problem for the real estate economy, the research project SEISMID was launched and thanks to financial contribution of the "Technologieagentur der Stadt Wien (ZIT)" it could be finished successfully on 31.12.2010. This project was the first step to compensate the lack of knowledge and experience in this sector in Austria. Historical masonry buildings are very complex structures. Their global dynamic behavior is affected by many components (foundings, walls⋯). There are many constraints for the dynamic system identification of the micro- and macro-behavior while taking measurements. This article describes the technical aspects of the measurements, which was acquired within SEISMID and could be tested successfully.

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