000009885 001__ 9885
000009885 005__ 20141205153203.0
000009885 04107 $$aeng
000009885 046__ $$k2008-10-12
000009885 100__ $$aDiotallevi, Pier Paolo
000009885 24500 $$aDynamic Identification of a Timber Footbridge Subject to Vibration Tests

000009885 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009885 260__ $$b
000009885 506__ $$arestricted
000009885 520__ $$2eng$$aOver the last thirty years timber bridges and footbridges have been found considerable use especially by their versatility, good durability and pleasing aesthetic view. First the development of new technology and materials, as the laminated timber, second the use of innovative building, assembling and connection techniques and third the expansion of efficient, certain and inexpensive products for timber protection, have allowed the employ of this type of structure. In this paper the results obtained from two forced vibration tests, carried out in 2000 and 2005, define the dynamic behaviour of a laminated timber footbridge, which has been excited by means of vibrodyne. The first test has been made in the 2000, immediately after the building launch and before its use, whereas the second test has been replicated after five years using the same test set up adopted in the first one. The aim has been to estimate, with hindsight, the dynamic characteristics of the footbridge (natural frequencies, dampings, mode shapes, etc.) and their possible variations. The free vibrations of the system, acquired during only the first test, have been analyzed afterwards to define the modal parameters through the Wavelet Transform. This kind of survey is necessary due both to the material used in the building and the particular using conditions of the footbridge: in fact, it is subjected to particular weather conditions, because it is situated near to the Adriatic Sea.

000009885 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009885 653__ $$alaminated timber, vibration tests, data processing, comparisons experimental results

000009885 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009885 720__ $$aDiotallevi, Pier Paolo$$iManfroni, Odine$$iBelmonte, Claudia
000009885 8560_ $$ffischerc@itam.cas.cz
000009885 8564_ $$s2293753$$uhttps://invenio.itam.cas.cz/record/9885/files/05-02-0133.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-02-0133.
000009885 962__ $$r9324
000009885 980__ $$aPAPER