This paper presents a procedure that allows computing the axial load-bending moment (N-M) interaction curves in case of rectangular R/C columns confined by FRP. At this purpose the constitutive law for the FRP confined concrete in compression adopted by the recently edited guidelines of the Italian National Research Council (CNR, 2005) has been used. This law presents two different branches; the first one parabolic and the second one linear and degenerates in the well-known “parabola-rectangle diagram” (CEN, 2001) when the confinement is absent. The obtained interaction curves are presented in a dimensionless representation (ν−µ), which is useful in strengthening interventions design, since it allows representing in a very simple way the dependence on several parameters.
A design procedure of FRP confining systems for upgrade R/C columns
FAELLA, CiroMembro del Collaboration Group
;REALFONZO, ROBERTO
Membro del Collaboration Group
2020-01-01
Abstract
This paper presents a procedure that allows computing the axial load-bending moment (N-M) interaction curves in case of rectangular R/C columns confined by FRP. At this purpose the constitutive law for the FRP confined concrete in compression adopted by the recently edited guidelines of the Italian National Research Council (CNR, 2005) has been used. This law presents two different branches; the first one parabolic and the second one linear and degenerates in the well-known “parabola-rectangle diagram” (CEN, 2001) when the confinement is absent. The obtained interaction curves are presented in a dimensionless representation (ν−µ), which is useful in strengthening interventions design, since it allows representing in a very simple way the dependence on several parameters.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
