000021997 001__ 21997
000021997 005__ 20170622131317.0
000021997 04107 $$aeng
000021997 046__ $$k2017-06-15
000021997 100__ $$aCassese, Paolino
000021997 24500 $$aSEISMIC BEHAVIOUR OF POORLY DETAILED RC BRIDGE PIERS WITH HOLLOW CROSS-SECTION

000021997 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021997 260__ $$bNational Technical University of Athens, 2017
000021997 506__ $$arestricted
000021997 520__ $$2eng$$aThe assessment of seismic performance of existing bridge structures is a primary issue, especially in regions where most of bridges have been realized without proper details to support loadings due to earthquakes. Hollow section piers are a very common structural solution for reinforced concrete (RC) bridge structures, due to the economical convenience and the higher structural efficiency with respect to solid sections. Nevertheless, a quite limited number of experimental tests are present in literature about this structural typology. An experimental program of cyclic tests on four 1:4-scale models of typical RC existing bridge piers with hollow rectangular cross-section, poor structural detailing and small web thickness, has been carried out at the Department of Structures for Engineering and Architecture of the University of Naples Federico II. Different failure modes have been observed: flexure and flexure-shear, basically depending on the specimens’ slenderness. In this paper, major experimental results are described and discussed, also evaluating the deformability contributions to the overall applied displacement and highlighting the importance of shear deformation. Finally, numerical simulation analyses of the structural response of the tested piers have been performed in OpenSees in order to reproduce the above-mentioned deformability contributions by simulations. Main numerical-versus-experimental results are shown and discussed.

000021997 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021997 653__ $$aHollow rectangular cross-section, experimental tests, deformability contributions, numerical modelling.

000021997 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021997 720__ $$aCassese, Paolino$$iVerderame, Gerardo Mario$$iRisi, Maria Teresa De
000021997 8560_ $$ffischerc@itam.cas.cz
000021997 8564_ $$s2069290$$uhttps://invenio.itam.cas.cz/record/21997/files/18615.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS08] Seismic Safety Assessment of Structures
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000021997 962__ $$r21500
000021997 980__ $$aPAPER