An important phenomenon that characterize the behaviour of shear-strengthened beams with FRP at ultimate is the shear interaction effect between internal and external transverse reinforcement, which is a key factor that significantly affect the shear capacity of the FRP-strengthened beam. The present paper is finalized to study the mechanism of shear interaction and to quantify the effect of the under-mobilization of the internal steel stirrups. By adopting some rationale simplifications to describe the bond-slip behaviour, the problem is developed in a way that a closed form solution can be obtained which is, therefore, particularly useful for practical design purpose.
Interaction between external and internal transverse reinforcement in RC beams shear-strengthened with FRP
COLOTTI, Vincenzo
2011-01-01
Abstract
An important phenomenon that characterize the behaviour of shear-strengthened beams with FRP at ultimate is the shear interaction effect between internal and external transverse reinforcement, which is a key factor that significantly affect the shear capacity of the FRP-strengthened beam. The present paper is finalized to study the mechanism of shear interaction and to quantify the effect of the under-mobilization of the internal steel stirrups. By adopting some rationale simplifications to describe the bond-slip behaviour, the problem is developed in a way that a closed form solution can be obtained which is, therefore, particularly useful for practical design purpose.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
