000022231 001__ 22231
000022231 005__ 20170622150003.0
000022231 04107 $$aeng
000022231 046__ $$k2015-05-25
000022231 100__ $$aDelgado, Pedro
000022231 24500 $$aEXPERIMENTAL AND NUMERICAL ANALYSIS ON THE CYCLIC BEHAVIOR OF BRIDGE PIERS WITH AND WITHOUT CFRP RETROFIT

000022231 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022231 260__ $$bNational Technical University of Athens, 2015
000022231 506__ $$arestricted
000022231 520__ $$2eng$$aThe main objective of this paper is to evaluate the cyclic behavior of RC hollow piers, with and without with CFRP retrofit, by comparison of experimental tests results with structural numerical modeling. The retrofit techniques aim to increase the shear strength and the ductility capacity through the establishment of principles and strategies applied in an experimental cyclic campaign of RC hollow piers, carried out in the Laboratory for Earthquake and Structural Engineering (LESE) of the Faculty of Engineering of University of Porto (FEUP). The evaluation and calibration of the efficiency of several retrofit solutions is also performed. The numerical simulations are carried out using two different methodologies: (i) fiber model and (ii) damage model. The fiber models based in a finite element discretiztion with non-linear behavior distributed along the elements length and cross-sectional area, while the damage model is supported on refined finite element (FE) meshes, with high complexity and detail levels in the constitutive laws defined for both concrete and steel. The concrete is simulated with a continuum damage model where several applications for bridges with hollow section piers can be found at Faria et al. [1]. Results of the experimental campaign allow to discuss and conclude about the efficiency of each numerical method, namely regarding the shear strength and the ductility capacity assessment.

000022231 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022231 653__ $$aRC hollow piers, numerical analysis, experimental tests, retrofit strategies

000022231 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022231 720__ $$aDelgado, Pedro$$iDelgado, Raimundo$$iCosta, Aníbal$$iPouca, Nelson Vila$$iArêde, António$$iRocha, Patrício$$iSousa, Frutuoso
000022231 8560_ $$ffischerc@itam.cas.cz
000022231 8564_ $$s1247498$$uhttps://invenio.itam.cas.cz/record/22231/files/C1605.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022231 962__ $$r22030
000022231 980__ $$aPAPER