Francesca Ceroni1, and Marco Di Ludovico2
1)  Engineering Dept., University of Napoli ‘Parthenope’
Centro Direzionale, Is. C4, 80143, Napoli, Italy
2)  Dept. of Structures for Engineering and Architecture, University of Napoli Federico II
Via Claudio 21, 80125, Napoli, Italy

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.