This paper presents an experimental and numerical investigation on the load bearing capacity of 6.5m-long RC beams strengthened with prestressed CFRP strips with gradient anchorage. This technique eventually leaves a purely concrete-epoxy-strip connection without any remaining mechanical devices such as bolts or plates. Laboratory tests were carried out in the framework of an industry-based R&D project. Experimental testing consisted of a 6-point static loading procedure on four simply supported beams. Experimental results, such as force-deflection, force-strain curves, and failure modes, are presented. In a second step, a non-commercial finite element code is presented and applied to the previously presented testing configuration. Finally, the experimental results and the corresponding numerical simulations are compared.
RC beams strengthened with prestressed and gradually anchored CFRP strips
MARTINELLI, Enzo;
2013
Abstract
This paper presents an experimental and numerical investigation on the load bearing capacity of 6.5m-long RC beams strengthened with prestressed CFRP strips with gradient anchorage. This technique eventually leaves a purely concrete-epoxy-strip connection without any remaining mechanical devices such as bolts or plates. Laboratory tests were carried out in the framework of an industry-based R&D project. Experimental testing consisted of a 6-point static loading procedure on four simply supported beams. Experimental results, such as force-deflection, force-strain curves, and failure modes, are presented. In a second step, a non-commercial finite element code is presented and applied to the previously presented testing configuration. Finally, the experimental results and the corresponding numerical simulations are compared.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
