000012868 001__ 12868
000012868 005__ 20160920162652.0
000012868 04107 $$aeng
000012868 046__ $$k2016-09-05
000012868 100__ $$aAdewuyi, A.P.
000012868 24500 $$aStructural assessment of an existing concrete bridge based on distributed strain measurement data

000012868 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012868 260__ $$bTaylor and Francis Group, London, UK
000012868 506__ $$arestricted
000012868 520__ $$2eng$$aThis paper presents the real-time monitoring results of Kawane Highway RC Bridge in Ibaraki Prefecture of Japan. The focus of the study was to evaluate the performance of the long-gauge FBG sensors packaged in the laboratory for long-term monitoring of existing bridge structure, and assess the condition of the investigated bridge using dynamic response measurements under operational and environmental loading conditions. A distributed long-gage FBG sensor based SHM system was installed on the bridge for real-time distributed strain monitoring under ambient traffic excitations and varying environmental conditions. The condition of the bridge was assessed on the basis of the proposed data normalization approach using the Normalized Modal Macrostrain (NMMS) vectors between the target and the reference macro-strain measurements. The proposed algorithm is suitable for practical civil SHM applications where variability in response and modal parameters due to measurement noise and environmental influence is often inevitable. Some changes in first modal frequency of the bridge were observed which was mainly due to the variations in environmental parameters. However, no significant changes in the slope of the fit lines were noticed indicating the healthy condition of the monitored bridge. Thorough intensive inspection of the bridge during the experimentation exercise also established the fact.

000012868 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012868 653__ $$a

000012868 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012868 720__ $$aAdewuyi, A.P.$$iFranklin, S.O.$$iWu, Z.S.
000012868 8560_ $$ffischerc@itam.cas.cz
000012868 8564_ $$s1549334$$uhttps://invenio.itam.cas.cz/record/12868/files/316.pdf$$yOriginal version of the author's contribution as presented on CD, 316.pdf.
000012868 962__ $$r12552
000012868 980__ $$aPAPER