000019869 001__ 19869
000019869 005__ 20170118182340.0
000019869 04107 $$aeng
000019869 046__ $$k2017-01-09
000019869 100__ $$aLupianez, Susana Anacleto
000019869 24500 $$aLarge-Scale Testing of Frp-Strengthened Rc-Smrf T-Beams With Rectangular Web Openings

000019869 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019869 260__ $$b
000019869 506__ $$arestricted
000019869 520__ $$2eng$$aThe nonlinear cyclic response of reinforced concrete special moment-resisting frame (RC-SMRF) beams with rectangular web openings was investigated through a series of large-scale experimental studies. A comprehensive set of T-beams was subjected to reverse cyclic loading and tested to complete structural failure. This paper presents the experimental results of three identical specimens with rectangular web opening: one specimen without external reinforcement and two duplicates strengthened in shear with externally bonded fiber-reinforced polymer (EB-FRP) sheets in two different U-wrap schemes. The EB-FRP reinforcement was applied to undamaged specimens in order to study the increase in strength, ductility and energy dissipation with respect to the externally unstrengthened beam. Two types of FRP composites were used: carbon fiber FRP laminates were applied at the fixed-end of the beams, whereas glass fiber FRP laminates were wrapped around the opening sections. The externally unstrengthened beam failed in the opening region, reaching a maximum strength of 646kN, a maximum displacement ductility of 2.2 and an ultimate drift ratio of 5.4%, while the application of EB-FRP reinforcement transferred the hinging zone to the beam-column interface and provided a maximum increase in peak force of 21%, in displacement ductility of 97% and in normalized cumulative energy dissipation of 203% (at peak).

000019869 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019869 653__ $$aopenings, large-scale testing, fiber-reinforced polymer, reinforced concrete, moment resisting frame beams.

000019869 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019869 720__ $$aLupianez, Susana Anacleto$$iHerrera, Luis$$iSlowik, Volker$$iLemnitzer, Anne
000019869 8560_ $$ffischerc@itam.cas.cz
000019869 8564_ $$s1501287$$uhttps://invenio.itam.cas.cz/record/19869/files/4578.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4578.
000019869 962__ $$r16048
000019869 980__ $$aPAPER