000004476 001__ 4476
000004476 005__ 20141118192658.0
000004476 0177_ $$2doi$$a10.3850/978-981-07-2219-7_P111

000004476 0247_ $$210.3850/978-981-07-2219-7_P111
$$adoi
000004476 04107 $$aeng
000004476 046__ $$k2012-05-23
000004476 100__ $$aAkiyama, Mitsuyoshi
000004476 24500 $$aUpdating the Seismic Reliability of Existing RC Bridge Piers in an Aggressive Environment using Ground Motion Information

000004476 24630 $$n5.$$pProceedings of the 5th Asian-Pacific Symposium on Structural Reliability and its Applications
000004476 260__ $$bResearch Publishing, No:83 Genting Lane, #08-01, Genting Building, 349568 SINGAPORE
000004476 506__ $$arestricted
000004476 520__ $$2eng$$aLittle attention has been devoted to the assessment of the seismic reliability of corroded structures. For the life-cycle assessment of RC structures in a marine environment and earthquake-prone regions, the effect of corrosion due to airborne chlorides on the seismic capacity needs to be taken into consideration. In addition, for existing structures, epistemic uncertainties involved in the evaluation of hazard assessment associated with airborne chloride, corrosion process of steel bars, and deterioration of seismic capacity have to be reduced using observational information (Akiyama et al. 2010, Frangopol 2011).
 This paper presents a procedure to estimate the seismic reliability of existing RC bridge piers in a marine environment updated by using Sequential Monte Carlo Simulation. When estimating the failure probability, the occurrence of buckling of corroded longitudinal rebars is considered as the sole limit state. In this procedure, visual inspection data and seismic ground motion measured near the bridges analyzed are used as observational information. The earthquake event can provide a proof test of the bridge. Based on this test, random variables used in seismic capacity evaluation and corrosion process of rebars due to chloride attack are updated. The effects of visual inspection results and magnitude of measured ground motion on the updated estimates of the seismic reliability of a RC bridge pier are discussed by using an illustrative example.

000004476 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004476 653__ $$aReinforced concrete bridge pier, Seismic reliability, Updating, Hazard assessment, Monte carlo simulation, Observational data.

000004476 7112_ $$a5th Asian-Pacific Symposium on Structural Reliability and its Applications$$cSingapore (SG)$$d2012-05-23 / 2012-05-25$$gAPSSRA2012
000004476 720__ $$aAkiyama, Mitsuyoshi$$iFrangopol, Dan M.$$iYoshida, Ikumasa
000004476 8560_ $$ffischerc@itam.cas.cz
000004476 8564_ $$s220934$$uhttps://invenio.itam.cas.cz/record/4476/files/P111.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004476 962__ $$r4180
000004476 980__ $$aPAPER