000022224 001__ 22224
000022224 005__ 20170622150002.0
000022224 04107 $$aeng
000022224 046__ $$k2015-05-25
000022224 100__ $$aDelgado, Pedro
000022224 24500 $$aNUMERICAL SEISMIC SAFETY ASSESSMENT OF RC BRIDGES WITH HOLLOW PIERS

000022224 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022224 260__ $$bNational Technical University of Athens, 2015
000022224 506__ $$arestricted
000022224 520__ $$2eng$$aThe seismic damages of reinforced concrete bridges in recent events show that many of them have an inadequate behavior and safety. Therefore, is important to accurately define bridge safety assessment and hence evaluate the accuracy of the analytical methodologies for seismic response of bridges. The main objective of this paper is to present several options for structural simulation with different complexities in order to assess the seismic response of bridges and then use the results for the safety assessment with probabilistic approaches. The numerical simulations are carried out using three different methodologies: (i) plastic hinge model, (ii) fiber model and (iii) damage model. Seismic response of bridges is based on a simplified plane model, with easy practical application and involving reduced calculation efforts while maintaining adequate accuracy. The evaluation of seismic vulnerability is carried out through the failure probability quantification involving a non-linear transformation of the seismic action in its structural effects. The applicability of the proposed methodologies is then illustrated in the seismic analysis of two reinforced concrete bridges, involving a series of experimental tests and numerical analysis, providing an excellent set of results for comparison and global calibration.

000022224 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022224 653__ $$aRC Bridges; Structural Modeling; Safety Assessment; Non-linear behavior.

000022224 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022224 720__ $$aDelgado, Pedro$$iCosta, Aníbal$$iPouca, Nelson Vila$$iArêde, António
000022224 8560_ $$ffischerc@itam.cas.cz
000022224 8564_ $$s816225$$uhttp://invenio.itam.cas.cz/record/22224/files/C1590.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022224 962__ $$r22030
000022224 980__ $$aPAPER