000004768 001__ 4768
000004768 005__ 20141119144551.0
000004768 04107 $$aeng
000004768 046__ $$k2002-06-02
000004768 100__ $$aZhao, Ling
000004768 24500 $$aDIRECT IDENTIFICATION OF DAMAGE IN BEAM STRUCTURES USING DEAD LOAD MEASUREMENTS

000004768 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004768 260__ $$bColumbia University in the City of New York
000004768 506__ $$arestricted
000004768 520__ $$2eng$$aChanges in local flexibility caused by damage in a structure will case the internal forces of the structure to redistribute. A method for damage detection in beam structures is proposed that is based on measuring the change in redundant forces in the system due to dead load. Damage is modeled as a hinge plus a rotational spring that connects two sub-domains of a beam. By solving a nonlinear least squares problem, the damage location and severity can be obtained. Two example problems are presented, first, a single-span beam with partial restraint at each end, and second, a two-span continuous beam that is fixed at each end. Early laboratory tests conducted on a 10-foot aluminum beam show promising results.

000004768 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004768 653__ $$abeam, damage detection, dead load, experimental, flexibility, nonlinear least squares, static, strain

000004768 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004768 720__ $$aZhao, Ling$$iShenton, Harry W.
000004768 8560_ $$ffischerc@itam.cas.cz
000004768 8564_ $$s203775$$uhttps://invenio.itam.cas.cz/record/4768/files/313.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004768 962__ $$r4594
000004768 980__ $$aPAPER