GATTULLI, VINCENZO1; MARCARI, GIANCARLO2; PAOLONE, ACHILLE3; POTENZA, FRANCESCO4

1) Associate Professor, University of L’Aquila, Dipartimento di Ingegneria Civile, Edile-Architettura, Ambientale, Italy

E-mail: vincenzo.gattulli@univaq.it

2) Postdoctoral Researcher, University Sapienza of Rome, Department of Structural and Geotechnical Engineering, Italy

E-mail: giancarlo.marcari@uniroma1.it

3) Full Professor, University Sapienza of Rome, Department of Structural and Geotechnical Engineering, Italy

E-mail: achille.paolone@uniroma1.it

4) Postdoctoral Researcher, University of L’Aquila, Dipartimento di Ingegneria Civile, Edile-Architettura, Ambientale, Italy

E-mail: francensco.potenza@cc.univaq.it

This work investigates the in-plane behaviour of a masonry building facade before and after structural interventions with epoxy-based unidirectional FRP strips. To this end, a simple macro-modeling approach is proposed for the simulation of the XVIII century Camponeschi Palace facade in the city of L’Aquila, Italy, damaged by the 2009 earthquake. The FRP reinforcement of the facade is designed according to relevant guidelines and consists of vertical and horizontal FRP strips anchored to the masonry walls. In the numerical model, masonry and FRP are modeled according to a smeared crack approach and a truss-based approach, respectively. The assumption of perfect bonding between masonry and reinforcement is adopted in the work. Pushover analysis are carried out before and after strengthening. The real damage distribution over the facade was used for comparisons purposes. The effects of the FRP on the global behavior of the facade are presented and discussed.

Keywords: historic masonry, FEM analysis, macro-modeling, Fiber Reinforced Polimers (FRP), structural retrofitting.