000009577 001__ 9577
000009577 005__ 20141205150220.0
000009577 04107 $$aeng
000009577 046__ $$k2008-10-12
000009577 100__ $$aBosco, Melina
000009577 24500 $$aForce-Displacement Relationships for R/C Members in Seismic Design

000009577 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009577 260__ $$b
000009577 506__ $$arestricted
000009577 520__ $$2eng$$aFor a long time, the structural model of r/c framed structures has been defined assigning to each member a conventional stiffness, related to the properties of the geometrical cross-section. The more recent seismic codes suggest to evaluate stiffness taking into account the effect of cracking but do not provide operative indication on how do it. The paper proposes a fibre model able to describe the behaviour of a concrete member, starting from the moment-curvature analysis of reinforced concrete sections and taking into account different aspect (as tension shift due to shear force, anchorage deformation and plastic hinge width). By means of it, more reliable force-displacements relationships can be evaluated for beams and columns. The obtained curves can be used to define the equivalent elastic secant flexural stiffness to be adopted in design computer programs to describe the elastic behaviour of cracked members as a function of geometry of the section, reinforcement and axial force.

000009577 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009577 653__ $$aSeismic design, r/c structures, stiffness, cracked section, moment-curvature

000009577 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009577 720__ $$aBosco, Melina$$iGhersi, Aurelio$$iLeanza, Salvatore
000009577 8560_ $$ffischerc@itam.cas.cz
000009577 8564_ $$s213142$$uhttps://invenio.itam.cas.cz/record/9577/files/08-02-0067.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 08-02-0067.
000009577 962__ $$r9324
000009577 980__ $$aPAPER