Diagonal tensile tests on historical brick masonry wallets strengthened with fabric reinforced cementitious mortar

Pelin E. Mezrea, Medine Ispir*, Irem A. Balci, Ihsan E. Bal, Alper Ilki

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

20 Atıf (Scopus)

Özet

Masonry structures comprise a significant portion of the historical building stock all over the world. Previous studies have clearly pointed out that unreinforced masonry buildings are vulnerable against extreme loading conditions, such as seismic actions. Therefore, strengthening is inevitable in most cases for historical masonry to withstand severe loads. In this paper, the efficiency of fabric reinforced cementitious matrix is investigated experimentally by using diagonal tension tests. Fourteen wallets with a nominal size of 750x750x235 mm were produced with using solid clay bricks and a low-strength mortar. The bricks were collected from the structural walls of an early-20th century building under restoration. The low-strength mortar represents the historical mortar commonly used in similar historical brick masonry buildings located in Istanbul, Turkey. By testing the specimens under monotonic diagonal compression loads, the effects of different types of plasters on the wallet surface, varying types of fibers used in textile reinforcement and anchors used for the connection between FRCM and substrate are investigated. Although the wallet samples have inherent shortcomings in representing overall component response accurately, still the qualitative findings are enlightening the effectiveness of the FRCM system by increasing shear strength, stiffness (shear modulus) and dissipated energy of the masonry wallets. The strengthened specimens were failed due to shear sliding along a bed joint and/or by a stair-shaped separation while the refence specimens were failed due to the splitting of the specimen into two parts in the stair-stepped shape and a slipping through a bed joint.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)935-946
Sayfa sayısı12
DergiStructures
Hacim33
DOI'lar
Yayın durumuYayınlandı - Eki 2021

Bibliyografik not

Publisher Copyright:
© 2021 Institution of Structural Engineers

Finansman

The experimental research was carried out at The Structural and Earthquake Engineering Laboratory of Istanbul Technical University. The authors would like to thank ITU Scientific Research Office, and Tekstar Ltd. The producer of the materials used in the experiments is Fyfe Europe S.A. their generous contribution is appreciated. The contributions of technical staff of the laboratory are acknowledged. Special thanks go to Cem Demir, Ergün Binbir, Korhan Deniz Dalgic and Ali Osman Ates for their helpful assistance and discussions.

FinansörlerFinansör numarası
ITU Scientific Research Office
Tekstar Ltd.
Istanbul Teknik Üniversitesi

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