000011312 001__ 11312
000011312 005__ 20141205155858.0
000011312 04107 $$aeng
000011312 046__ $$k2008-10-12
000011312 100__ $$aPei, Qiang
000011312 24500 $$aDamage Identification of Fatigue Crack in Steel Truss Structure

000011312 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011312 260__ $$b
000011312 506__ $$arestricted
000011312 520__ $$2eng$$aStructural Health Monitoring (SHM) has emerged as a new research area in the field of civil engineering. Localized characteristics of damage in steel truss require local measurements. The main difficulties of obtaining the local parameters include: (1) exciting higher modes in an element of the truss; (2) predominance of the lower frequency global modes for the truss vibrations; (3) choice of health baseline for the truss. In this project, using theoretical and experimental methods, free vibration characteristics of an elastic simple beam with a fatigue notch crack damage located any where of the beam is investigated. And then, new health baseline based on symmetry for steel truss structure is defined. Based on this baseline, experimental data are obtained to show that the local and relative small damage can be detected even when the global dynamic characteristics of the steel truss do not change significantly.

000011312 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011312 653__ $$aStructural Health Monitoring (SHM), health baseline, crack damage, modal frequency

000011312 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011312 720__ $$aPei, Qiang$$iGuo, Xun
000011312 8560_ $$ffischerc@itam.cas.cz
000011312 8564_ $$s287751$$uhttps://invenio.itam.cas.cz/record/11312/files/05-05-0140.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 05-05-0140.
000011312 962__ $$r9324
000011312 980__ $$aPAPER