000095992 001__ 95992
000095992 005__ 20201029122509.0
000095992 0247_ $$2doi$$a10.1016/j.engstruct.2019.03.057
000095992 0248_ $$2sideral$$a111171
000095992 037__ $$aART-2019-111171
000095992 041__ $$aeng
000095992 100__ $$aAyensa, A.
000095992 245__ $$aInfluence of the flanges width and thickness on the shear strength of reinforced concrete beams with T-shaped cross section
000095992 260__ $$c2019
000095992 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095992 5203_ $$aShear design of reinforced concrete beams with T section considers only the contribution of the web, mainly provided by aggregate interlock. However, as the load increases and large web crack openings take place, aggregate interlock reduces and shear stresses tend to concentrate near the neutral axis, usually located in the flanges of T beams, whose contribution to shear strength may be not negligible, as it has been experimentally observed. Thus, the contribution of flanges may drive to considerable cost savings in new structures and may become decisive when evaluating the shear capacity of existing structures. To quantify such contribution, a nonlinear 3D-FEA model has been developed and calibrated with the results of shear tests performed on RC T-beams by the authors. Once adjusted, the model has been used to analyze the shear response of beams with different geometry and longitudinal reinforcement, usual in practice. It has been found that, up to certain limits, the contribution of the flanges to the shear strength increases as the amount of longitudinal reinforcement decreases, as the flanges width increases and as the flange thickness increases. The maximum contribution of flanges found in the present study is 31.3% of the total shear resisted. Furthermore, the numerical model has been used to visualize and quantify aspects that are not easy to obtain experimentally, such as the distribution of the shear stresses between the web and the flanges. The present study will contribute to derive a design expression for the shear effective flanges width of T beams.
000095992 536__ $$9info:eu-repo/grantAgreement/ES/MINECO-ERDF/BIA2015-64672-C4-1-R
000095992 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000095992 590__ $$a3.548$$b2019
000095992 591__ $$aENGINEERING, CIVIL$$b19 / 134 = 0.142$$c2019$$dQ1$$eT1
000095992 592__ $$a1.595$$b2019
000095992 593__ $$aCivil and Structural Engineering$$c2019$$dQ1
000095992 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000095992 700__ $$aOller, E.
000095992 700__ $$aBeltrán, B.
000095992 700__ $$0(orcid)0000-0003-0785-4132$$aIbarz, E.$$uUniversidad de Zaragoza
000095992 700__ $$aMarí, A.
000095992 700__ $$0(orcid)0000-0001-7944-9625$$aGracia, L.$$uUniversidad de Zaragoza
000095992 7102_ $$15004$$2605$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Mec.Med.Cont. y Teor.Est.
000095992 773__ $$g188 (2019), 506-518$$pENG STRUCT$$tENGINEERING STRUCTURES$$x0141-0296
000095992 8564_ $$s872296$$uhttps://zaguan.unizar.es/record/95992/files/texto_completo.pdf$$yVersión publicada
000095992 8564_ $$s39503$$uhttps://zaguan.unizar.es/record/95992/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095992 909CO $$ooai:zaguan.unizar.es:95992$$particulos$$pdriver
000095992 951__ $$a2020-10-29-10:12:55
000095992 980__ $$aARTICLE