TY - JOUR
T1 - A repair method of cracked shear walls with stainless steel rods and fibres
AU - Corradi, Marco
AU - Speranzini, Emanuela
AU - Molinari, Alessio
N1 - Funding Information:
The authors wish to express their gratitude and appreciation to Milena Dhamaj, who assisted greatly in making this testing possible at the Structures Laboratory of the University of Perugia, located in Terni, Italy. The authors are grateful for the support of Kimia Co. Perugia, Italy for providing the reinforcement materials used in the experimental work. The raw/processed data required to reproduce the findings of this experiment cannot be shared at this time as the data also forms part of an ongoing study.
Publisher Copyright:
© 2022 The Author(s)
PY - 2022/8/1
Y1 - 2022/8/1
N2 - In this paper destructive shear testing was conducted by installing various sensors and instruments at critical locations of full-scale masonry walls. The purpose of this research was to determine through laboratory testing the effectiveness of new repair methods, used as a seismic retrofit of seriously cracked shear walls. Testing was performed on several different types of walls (brickwork and stone masonry). This experimental campaign is divided in two parts: FRCMs (Fiber Reinforced Cementitious Mortars) were initially employed to reinforce the walls and, after testing, stainless steel anchors and other materials have been used to “locally” repair the shear walls (crack sealing), and re-tested. The evaluation methods included the analysis of the lateral load capacities and stiffness characteristics, the failure modes, also implemented to detect any debonding phenomenon between the FRCM retrofit system and the masonry substrate. An evaluation of the overall structural behaviour of the walls before and after reinforcement, and again after the repair, is presented. The results indicate that several conditions have an effect on the efficiency of the composite repair. Shear-load capacity, shear strength and stiffness, wall ductility are considered in the analysis.
AB - In this paper destructive shear testing was conducted by installing various sensors and instruments at critical locations of full-scale masonry walls. The purpose of this research was to determine through laboratory testing the effectiveness of new repair methods, used as a seismic retrofit of seriously cracked shear walls. Testing was performed on several different types of walls (brickwork and stone masonry). This experimental campaign is divided in two parts: FRCMs (Fiber Reinforced Cementitious Mortars) were initially employed to reinforce the walls and, after testing, stainless steel anchors and other materials have been used to “locally” repair the shear walls (crack sealing), and re-tested. The evaluation methods included the analysis of the lateral load capacities and stiffness characteristics, the failure modes, also implemented to detect any debonding phenomenon between the FRCM retrofit system and the masonry substrate. An evaluation of the overall structural behaviour of the walls before and after reinforcement, and again after the repair, is presented. The results indicate that several conditions have an effect on the efficiency of the composite repair. Shear-load capacity, shear strength and stiffness, wall ductility are considered in the analysis.
KW - FRCM
KW - Masonry shear walls
KW - Retrofit
KW - Stainless steel
UR - http://www.scopus.com/inward/record.url?scp=85130883244&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2022.115739
DO - 10.1016/j.compstruct.2022.115739
M3 - Article
AN - SCOPUS:85130883244
VL - 293
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
M1 - 115739
ER -
