Akademik Veri Yönetim Sistemi
V. INTERNATIONAL HALICH CONGRESS ON MULTIDISCIPLINARY SCIENTIFIC RESEARCH, İstanbul, Türkiye, 15 - 16 Ocak 2023, ss.135-143
Mason structures represent cultural heritage of great historical importance all over the
world. These structures have been designed with little or no regard for the effects of lateral
loadings such as earthquakes, so they need to be strengthened using appropriate and effective
strengthening techniques. In the last years, significant developments have occurred with
respect to the possibilities of strengthening techniques for masonry walls, which are the most
durable part of masonry structures. Carbon Fiber Reinforced Polymer (CFRP) has widely
been used to strengthen and/or retrofit existing masonry walls against failure. This paper
primarily aims to propose an empirical model, which predicts the contributions of diagonal
CFRP strips to nominal shear strength of CFRP strengthened unreinforced masonry (URM)
walls using nonlinear regression analysis. The proposed model is developed by using the
input parameters determined by considering eight different experimental specimens available
in the literature. Five main parameters are used to develop the proposed model, including the
cross-sectional area of CFRP reinforcement, the tensile strength of CFRP reinforcement, the
length of the masonry wall, the height of the masonry wall, and the thickness of the masonry
wall. The contribution of diagonal FRP strips was compared with two different research-based
analytical models existed in the literature and experimental results. For this purpose, the
proposed model is evaluated in terms of the root mean square error (ܴܯܵܧ ,(mean absolute
percentage error (ܣܯܲܧ (and coefficient of determination (ܴଶ). It was concluded that the
proposed model is more compatible with the experimental results than the research-based
models. Besides, a parametric study and sensitivity analysis were conducted to reveal the
effect of input parameters.