TY - JOUR
T1 - Repairing brickwork panels using titanium rods embedded in the mortar joints
AU - Corradi, Marco
AU - Castori, Giulio
AU - Borri, Antonio
N1 - Funding information: The authors would like to acknowledge the Structures Laboratory, University of Perugia, Alessio Molinari and Emanuele Bombardieri. TiFast is acknowledged for its support of titanium rods. We also acknowledge the support from the Italian Ministry for Research and Education, in funding this research, through the project “ReLUIS 2017-Linea murature” and ReLUIS SISMA 2016.
PY - 2020/10/15
Y1 - 2020/10/15
N2 - This paper investigates repairing brickwork masonry walls using smooth titanium rods. Firstly, numerical analyses were carried out following a detailed micro-modelling strategy and then an experimental research program was undertaken in the laboratory. Solid clay brick specimens were initially tested, without strengthening, and subsequently re-tested, after repair, using titanium rods. Rods were embedded into the horizontal joints using an epoxy paste or a cement mortar. A double-sided repair was considered. Shear tests were carried out on four brickwork panels, under diagonal loading. The mechanism by which the diagonal shear load was carried was analyzed, varying from the uncracked state, to the final, cracked state, for both control and repaired wall panels. The results demonstrate that it is partially possible to restore the panels’ original in-plane shear capacity by embedding titanium rods into the horizontal bed joints using the epoxy paste. The experimental results were used to evaluate the effectiveness of the titanium repair, and recommendations are made to allow the test data to be used in the design procedure of cracked masonry structures. Unsatisfactory test results were recorded for panels repaired using a cement mortar.
AB - This paper investigates repairing brickwork masonry walls using smooth titanium rods. Firstly, numerical analyses were carried out following a detailed micro-modelling strategy and then an experimental research program was undertaken in the laboratory. Solid clay brick specimens were initially tested, without strengthening, and subsequently re-tested, after repair, using titanium rods. Rods were embedded into the horizontal joints using an epoxy paste or a cement mortar. A double-sided repair was considered. Shear tests were carried out on four brickwork panels, under diagonal loading. The mechanism by which the diagonal shear load was carried was analyzed, varying from the uncracked state, to the final, cracked state, for both control and repaired wall panels. The results demonstrate that it is partially possible to restore the panels’ original in-plane shear capacity by embedding titanium rods into the horizontal bed joints using the epoxy paste. The experimental results were used to evaluate the effectiveness of the titanium repair, and recommendations are made to allow the test data to be used in the design procedure of cracked masonry structures. Unsatisfactory test results were recorded for panels repaired using a cement mortar.
KW - Historic masonry
KW - Micro-modeling
KW - Retrofitting methods
KW - Shear strength
KW - Titanium
UR - http://www.scopus.com/inward/record.url?scp=85087960209&partnerID=8YFLogxK
U2 - 10.1016/j.engstruct.2020.111099
DO - 10.1016/j.engstruct.2020.111099
M3 - Article
AN - SCOPUS:85087960209
SN - 0141-0296
VL - 221
JO - Engineering Structures
JF - Engineering Structures
M1 - 111099
ER -