000021698 001__ 21698
000021698 005__ 20170622131300.0
000021698 04107 $$aeng
000021698 046__ $$k2017-06-15
000021698 100__ $$aCassese, Paolino
000021698 24500 $$aCAPACITY MODELS FOR SHEAR-CRITICAL RC BRIDGE PIERS WITH HOLLOW CROSS-SECTION

000021698 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021698 260__ $$bNational Technical University of Athens, 2017
000021698 506__ $$arestricted
000021698 520__ $$2eng$$aThe assessment of seismic performance of existing bridge structures that have been constructed without appropriate details to support seismic loadings is a primary issue for seismic prone areas. Hollow section piers represent 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. Moreover, despite their widespread use, none of the current codes addresses specific attention to define proper capacity models for RC hollow core members, both for design and assessment. In addition, proposals from literature are generally calibrated on columns with solid cross-section or on a very small amount of experimental data. 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 failure, basically depending on the specimens’ slenderness. On the basis of the major experimental results carried out by this experimental campaign, in this work, a database of similar tests from literature has been collected and presented. All tests exhibited a shear failure, with or without yielding of longitudinal bars. Collected experimental results are compared with capacity models existing in literature or codes, in terms of strength and displacement. Their predictive capability is analyzed and commented, and alternative proposals to improve their reliability are carried out.

000021698 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021698 653__ $$aHollow rectangular cross-section, Experimental tests, Shear failure, Shear strength, Drift at shear failure.

000021698 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021698 720__ $$aCassese, Paolino$$iVerderame, Gerardo Mario$$iRisi, Maria Teresa De
000021698 8560_ $$ffischerc@itam.cas.cz
000021698 8564_ $$s582361$$uhttps://invenio.itam.cas.cz/record/21698/files/17545.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS08] Seismic Safety Assessment of Structures
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000021698 962__ $$r21500
000021698 980__ $$aPAPER