000010974 001__ 10974
000010974 005__ 20141205155823.0
000010974 04107 $$aeng
000010974 046__ $$k2008-10-12
000010974 100__ $$aMezzina, Mauro
000010974 24500 $$aSeismic Vulnerability of R.C. Circular Bridge Columns

000010974 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010974 260__ $$b
000010974 506__ $$arestricted
000010974 520__ $$2eng$$aThe seismic response of highway viaducts with bearing-supported superstructures and characterized by structural regularity, essentially depends on the behaviour of its piers. Therefore, the vulnerability analysis of the most exposed column often coincides with that of the whole structure. This paper is focused on a simplified procedure that furnishes the expected damage vs ground acceleration for homogeneous families of piers, characterized by same design and site parameters. The procedure preliminarily analyzes different forms of column failures (flexural failure for inadequate confinement of the plastic hinge zone; flexural strength degradation in sections with lap-spliced reinforcement; shear failure; buckling of reinforcements). Subsequently, on the basis of a comparative analysis, the most probable condition of collapse is determined. The algorithm utilizes an approximated closed-form approach, properly obtained, in terms of longitudinal reinforcement, transverse confining steel, and base axial compression. R.c. bridge columns, seismic vulnerability, damage indexes

000010974 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010974 653__ $$a

000010974 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010974 720__ $$aMezzina, Mauro$$iRaffaele, Domenico
000010974 8560_ $$ffischerc@itam.cas.cz
000010974 8564_ $$s136484$$uhttps://invenio.itam.cas.cz/record/10974/files/06-0147.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 06-0147.
000010974 962__ $$r9324
000010974 980__ $$aPAPER