000010963 001__ 10963
000010963 005__ 20141205155822.0
000010963 04107 $$aeng
000010963 046__ $$k2008-10-12
000010963 100__ $$aMertlich, Tyler
000010963 24500 $$aStructural Health Monitoring of a Curved Girder Bridge Subjected to Different Boundary Conditions

000010963 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010963 260__ $$b
000010963 506__ $$arestricted
000010963 520__ $$2eng$$aA curved, three-span continuous, steel I-girder bridge in Salt Lake City, Utah was tested in order to determine its dynamic and static response to forced vibration. The bridge supports were altered and its response was monitored for three different boundary condition states. For each of the three boundary condition states, two dynamic forced vibration methods were applied to the bridge in order to determine the feasibility of structural health monitoring. The first forced vibration method used an eccentric mass shaker capable of imparting a horizontal sinusoidal force of up to 89 kN (20,000 lbs). The second method involved horizontally striking the side of the bridge with a 2.47 kN (556 lb) impact hammer. An array of 1-Hz velocity transducers and 1-g accelerometers were utilized to record response of the bridge. The recorded dynamic response of the bridge was analyzed and resulted in mode shapes and natural frequencies for each boundary condition state for both the sinusoidal and impact testing. This paper discusses the resulting changes in relevant dynamic.

000010963 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010963 653__ $$aBridge, curve girder, dynamic, mode shapes, damage

000010963 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010963 720__ $$aMertlich, Tyler$$iBarr, Paul J.$$iHalling, Marv W.$$iWomack, Kevin C.
000010963 8560_ $$ffischerc@itam.cas.cz
000010963 8564_ $$s120225$$uhttps://invenio.itam.cas.cz/record/10963/files/12-01-0169.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 12-01-0169.
000010963 962__ $$r9324
000010963 980__ $$aPAPER