Investigation of frp effects on damaged arches in historical masonry structures [Tarihi yigma yapilardaki hasarli kemerler üzerinde frp etkisinin incelenmesi]

The present paper deals with experimental behavior of deformed brick masonry arches strengthened with the fiber reinforced polymer (frp). seven arches were fabricated using commercial clay brick and low strength lime-based mortar,trying to mimic historical structures. after reaching sufficient strength (28 day strength),one arch called reference specimen is tested under the ultimate load and other arches are given damage to a certain extent. then six different strengthening arrangements,including different dimensions of frp strips,spike anchors and joint grouting are implemented on six arches damaged. the numerical modeling of damaged masonry arches strengthened with frp is performed using a commercially available structural analysis program and the numerical results are compared with the experimental ones. the experimental results show that the capacity of damaged masonry arch strengthened increases at least 58% in comparison with unstrengthened masonry arches and strengthening of joints with epoxy resin is an effective alternative to increase the damaged masonry arch capacity.