000010443 001__ 10443
000010443 005__ 20141205155728.0
000010443 04107 $$aeng
000010443 046__ $$k2008-10-12
000010443 100__ $$aKanazawa, Kenji
000010443 24500 $$aHealth Monitoring of 4-Story Steel Moment Frame Before and After the Collapse Test

000010443 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010443 260__ $$b
000010443 506__ $$arestricted
000010443 520__ $$2eng$$aChanges of modal parameters of a full scale 4-story steel building due to construction progress or seismic damage are evaluated in the shaking table test of the 2007 E-defense project, which are expected to employ as damage index of structural health monitoring. To evaluate the modal parameters, the continuous ambient vibration test has been conducted since the building was in bare steel frame state. After the ambient vibration test was started, the floor slabs are cast and non-structural components were installed. After the completion, various levels of seismic excitations were given to the building, and finally the building collapsed on the first floor. Through such process of the construction and the excitation test, a series of ambient vibration record in eighty days is obtained. The modal parameters in every five minutes are successively estimated by the cross-spectrum based modal identification. From the results, changes of the modal parameter are discussed on different states of construction as well as before and after the seismic excitations, which are very useful to develop the vibration-based damage detection. Change of the modal parameter due to different levels excitations is also investigated by using several small excitation records, which can be caused by changes of story-stiffness increment added by the non-structural components.

000010443 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010443 653__ $$aStructural Health Monitoring, Damage Detection, Natural Frequency, Steel Building

000010443 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010443 720__ $$aKanazawa, Kenji$$iKirita, Fumio$$iKitamura, Haruyuki$$iMatsuoka, Yuichi
000010443 8560_ $$ffischerc@itam.cas.cz
000010443 8564_ $$s1034262$$uhttps://invenio.itam.cas.cz/record/10443/files/S17-01-006.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: S17-01-006.
000010443 962__ $$r9324
000010443 980__ $$aPAPER