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Title |
Seismic Retrofit and Strength Prediction for Rocking-Dominated Unreinforced Masonry Walls with an Opening Using Amorphous Steel Fiber-Reinforced Mortar
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Authors |
곽병훈(Byeong-Hun Kwak) ; 박지훈(Ji-Hun Park) |
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DOI |
https://doi.org/10.4334/JKCI.2025.37.5.635 |
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Keywords |
강섬유보강 모르타르; 조적벽체; 내진보강; 내진성능 steel fiber-reinforced mortar; masonry wall; seismic retrofit; seismic performance |
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Abstract |
In this study, the use of plastered amorphous steel fiber-reinforced mortar, without steel wire mesh, is proposed as a seismic retrofit strategy for unreinforced masonry buildings. The proposed strengthening method was applied to masonry wall specimens in which the piers adjacent to openings were prone to rocking failure. Cyclic loading tests were conducted to validate the effectiveness of the proposed retrofit strategy. In addition, strength equations for the amorphous steel fiber-reinforced mortar layer on masonry walls with openings were developed, accounting for flexural strength and equilibrium in the panel zone. The accuracy of these equations was verified through comparison with experimental results.
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