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Structural Engineering and Mechanics Volume 25, Number 6, April20 2007 , pages 675-690 DOI: https://doi.org/10.12989/sem.2007.25.6.675 |
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Experimental study of masonry walls strengthened with CFRP |
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Chang-Qin Wei, Xin-Gang Zhou and Lie-Ping Ye
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| Abstract | ||
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In order to study the ductility and the lateral load carrying capacity of the masonry walls strengthened with CFRPs (Carbon Fiber Reinforced Polymer sheets), three pieces of masonry walls subjected to cyclic loads with low frequency and vertical load of constant amplitude have been tested. Two different strengthening methods have been used. The strengthening efficiency is affected by the strengthening method. A simplified calculation approach has been introduced based on the experimental test results, and the theoretical results agree reasonably well with the experimental results. It is found that the critical loads, the critical displacements, the ultimate loads, the ultimate displacements and the ductile coefficients of the masonry walls strengthened with CFRPs improve remarkably (6%~57%). Therefore, the masonry structures strengthened with CFRPs are of better ductility and of better lateral load carrying capacity than the masonry structures without any strengthening measurements. | ||
| Key Words | ||
| CFRPs (Carbon Fiber Reinforced Polymer sheet); masonry walls; strengthening method; lateral load carrying capacity. | ||
| Address | ||
| Chang-Qin Wei; School of Civil Engineering, Yantai University, Yantai 264005, P. R. China Xin-Gang Zhou; School of Civil Engineering, Yantai University, Yantai 264005, P. R. China Dept. of Civil Engineering, Tsinghua University, Beijing 100084, P. R. China Lie-Ping Ye; Dept. of Civil Engineering, Tsinghua University, Beijing 100084, P. R. China | ||