Francesca Ceroni1, and Marco Di Ludovico2
1)  Engineering Dept., University of Napoli ‘Parthenope’
Centro Direzionale, Is. C4, 80143, Napoli, Italy
e-mail: francesca.ceroni@uniparthenope.it
2)  Dept. of Structures for Engineering and Architecture, University of Napoli Federico II
Via Claudio 21, 80125, Napoli, Italy
e-mail: diludovi@unina.it

Keywords: masonry, injected anchors, steel bars, FRP bars, bond failure.

Abstract. The paper aims to collect a suitable database of pull-out tests related to several types of injected anchors in masonry elements. The collected experimental results are compared with theoretical predictions of pull-out force given by existing formulations and their reliability is discussed. Then, regression analyses have been carried out in order to assess a new design formulation taking into account the main parameters influencing the performance of injected anchors in masonry elements.