000019746 001__ 19746
000019746 005__ 20170118182334.0
000019746 04107 $$aeng
000019746 046__ $$k2017-01-09
000019746 100__ $$aGómez-Martínez, Fernando
000019746 24500 $$aLocal and Global Ductility of Wide-Beam RC Frames

000019746 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019746 260__ $$b
000019746 506__ $$arestricted
000019746 520__ $$2eng$$aItalian and Spanish seismic codes prescribe lower behaviour factor (q) for wide-beam reinforced concrete moment resisting frames (WBF) with respect to conventional q factors adopted for deep-beam frames (DBF). Conversely, other relevant seismic codes worldwide, such as Eurocode 8, consider WBF capable of high ductility performances, provided that design rules related to (i) stress transfer in connections, (ii) lateral stiffness and (iii) energy dissipation are complied. On the other hand, local ductility of wide beams (WB) appears to be systematically lower than that for deep beams (DB). A parametric comparative numerical analysis of deformations of DB and WB, following the current approach, shows that WB have larger ultimate chord rotation but lower ductility in terms of chord rotation than DB despite the similar ductility in curvature, which is mainly due to a lower plastic hinge lengths in WB. Aimed at verifying whether such disadvantage is overcome by modern codes or not, several archetype European RC residential buildings are designed alternatively with DB or WB. Seismic performances are assessed with different degree of detail. Results suggest that WBF provide at least similar global seismic capacities than DBF, especially in frames whose design is ruled by damage limitation limit state. Hence, any reduction of q in Mediterranean codes for WBF appears to be at least obsolete.

000019746 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019746 653__ $$aWide beams, deep beams, chord rotation ductility, behaviour factor, seismic codes.

000019746 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019746 720__ $$aGómez-Martínez, Fernando$$iVerderame, Gerardo Mario$$iLuca, Flavia De$$iPérez-Garcí­a, Agustí­n$$iAlonso-Durá, Adolfo
000019746 8560_ $$ffischerc@itam.cas.cz
000019746 8564_ $$s896462$$uhttps://invenio.itam.cas.cz/record/19746/files/4305.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4305.
000019746 962__ $$r16048
000019746 980__ $$aPAPER