An analytical procedure recently proposed by the authors is applied for an indirect identification (also called “back analysis”) of the local bond-slip model describing the interfacial behaviour between concrete and Steel Reinforced Polymer (SRP) strips. To this purpose, results from a wide experimental investigation performed at University of Salerno have been considered, which included 130 direct single-lap shear (DSLS) tests performed on SRP strips bonded to concrete. The key parameters characterizing - case by case - the bond-slip laws to implement in the analytical procedure were calibrated by best-fitting the experimental load-slip curves available from DSLS tests. The interface models identified through back analysis by varying the compressive strength and the surface finish of concrete were, then, compared with those previously found by the authors via “direct method”, i.e., by using the experimental measures of SRP strains available from the DSLS tests.

Bond-Slip Law for SRP-Concrete Interface

Ascione F.
Membro del Collaboration Group
;
Napoli A.
Membro del Collaboration Group
;
Realfonzo R.
Membro del Collaboration Group
2022-01-01

Abstract

An analytical procedure recently proposed by the authors is applied for an indirect identification (also called “back analysis”) of the local bond-slip model describing the interfacial behaviour between concrete and Steel Reinforced Polymer (SRP) strips. To this purpose, results from a wide experimental investigation performed at University of Salerno have been considered, which included 130 direct single-lap shear (DSLS) tests performed on SRP strips bonded to concrete. The key parameters characterizing - case by case - the bond-slip laws to implement in the analytical procedure were calibrated by best-fitting the experimental load-slip curves available from DSLS tests. The interface models identified through back analysis by varying the compressive strength and the surface finish of concrete were, then, compared with those previously found by the authors via “direct method”, i.e., by using the experimental measures of SRP strains available from the DSLS tests.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4805151
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