Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Static and dynamic testing of bridges through microwave interferometry
A novel microwave sensor capable of remote detection of structural displacements is experimented as geotechnical instrument for static and dynamic testing of bridges. The sensor is based on an interferometric radar providing range imaging capability and submillimetric accuracy range displacement measurement. Dynamic monitoring calls for sampling rate high enough for transient analysis, while static monitoring requires long-term stability. The instrument has been designed in order to provide both these features. Microwave interferometry for static and dynamic testing of bridges appears a very attractive and promising tool for a number of reasons: it performs a remote measurement, not requiring contact with the structure; the measuring technique is rapid and simple; the same portable instrument performs both the static and dynamic tests, it can operate on in-service structures. Experimental tests conducted on a complex twelve-arcades railway bridge under a number of different conditions have shown its capability and flexibility, and has evidenced its limitations as well.
Static and dynamic testing of bridges through microwave interferometry
A novel microwave sensor capable of remote detection of structural displacements is experimented as geotechnical instrument for static and dynamic testing of bridges. The sensor is based on an interferometric radar providing range imaging capability and submillimetric accuracy range displacement measurement. Dynamic monitoring calls for sampling rate high enough for transient analysis, while static monitoring requires long-term stability. The instrument has been designed in order to provide both these features. Microwave interferometry for static and dynamic testing of bridges appears a very attractive and promising tool for a number of reasons: it performs a remote measurement, not requiring contact with the structure; the measuring technique is rapid and simple; the same portable instrument performs both the static and dynamic tests, it can operate on in-service structures. Experimental tests conducted on a complex twelve-arcades railway bridge under a number of different conditions have shown its capability and flexibility, and has evidenced its limitations as well.
Static and dynamic testing of bridges through microwave interferometry
Statische und dynamische Prüfung von Brücken mittels Mikrowellen-Interferometrie
Pieraccini, M. (Autor:in) / Parrini, F. (Autor:in) / Fratini, M. (Autor:in) / Atzeni, C. (Autor:in) / Spinelli, P. (Autor:in) / Micheloni, M. (Autor:in)
NDT&E International ; 40 ; 208-214
2007
7 Seiten, 10 Bilder, 2 Tabellen, 12 Quellen
Aufsatz (Zeitschrift)
Englisch
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