000012861 001__ 12861
000012861 005__ 20160920162651.0
000012861 04107 $$aeng
000012861 046__ $$k2016-09-05
000012861 100__ $$aTan, Z.X.
000012861 24500 $$aDamage quantification in steel and reinforced concrete beams

000012861 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012861 260__ $$bTaylor and Francis Group, London, UK
000012861 506__ $$arestricted
000012861 520__ $$2eng$$aVibration Based Damage Detection (VBDD) techniques are very popular among researchers in the field of structural health monitoring as they are simple and effective in assessing structural damage. These techniques are applicable in the damage assessment of structures because the presence of damage alters the structure’s physical properties (stiffness, mass and damping) which then leads to the changes in its modal properties (natural frequencies and mode shapes). This paper firstly determines the percentage of stiffness reduction when steel beam first yields and also when the reinforced concrete beam first cracks, using experimental results. Thereafter, considering these values of stiffness reductions as the maximum amount of damage in the study, this paper demonstrates the use of a VBDD technique to detect, locate and quantify structural damage in both the steel and reinforced concrete beams. Finally, relationships between the percentage of stiffness loss to the changes in natural frequencies, modal flexibility and modal strain energy are established. These damage indices can then be used to quantify (realistic) damage. The next stage of the research is to further apply this method to concrete slab and finally to a slab-on-girder bridge.

000012861 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012861 653__ $$a

000012861 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012861 720__ $$aTan, Z.X.$$iThambiratnam, D.P.$$iChan, T.H.T.$$iRazak, H. Abdul
000012861 8560_ $$ffischerc@itam.cas.cz
000012861 8564_ $$s1169121$$uhttps://invenio.itam.cas.cz/record/12861/files/309.pdf$$yOriginal version of the author's contribution as presented on CD, 309.pdf.
000012861 962__ $$r12552
000012861 980__ $$aPAPER