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Experimental and Analytical Modeling of GFRP Strengthened Grouted Mortarless Masonry Prisms

Affiliation/Institute
College of Civil Engineering, Hunan University, Changsha 410082, China
Huang, Liang;
Affiliation/Institute
College of Civil Engineering, Hunan University, Changsha 410082, China
Gao, Chang;
GND
1184920079
Affiliation/Institute
Institut für Baukonstruktion und Holzbau, TU Braunschweig
Yan, Libo;
Affiliation/Institute
College of Civil Engineering and Architecture, Qingdao University of Technology, Qingdao 266300, China
Li, Xiaoxi;
Affiliation/Institute
College of Civil Engineering, Hunan University, Changsha 410082, China
Ma, Gao;
Affiliation/Institute
Anhui Institute of Civil Air Defense Building Research & Design, Hefei 230000, China
Wang, Tianfeng

The compressive performance of grouted mortarless masonry prisms strengthened with glass fiber-reinforced polymer (GFRP) composites was investigated in this study. A total of 18 grouted mortarless masonry specimens, i.e., nine strengthened with GFRP (called G-GMM) and nine without GFRP (called GMM), were tested under uniaxial compression. The effect of grout strength on the compressive strength of the prisms was discussed. Moreover, the effect of GFRP on the cracking load, modulus of elasticity, ultimate bearing capacity, failure modes, compressive stress–strain behavior, and deformation behavior of the specimens was analyzed. The test results indicated that GFRP strengthening increased the ratio of initial cracking load and ultimate load bearing capacity of mortarless masonry to a great extent, i.e., the ratio is 50–80% for G-GMM and 40–65% for GMM. In addition, GFRP clearly improved the deformation capability of the GMM. The tested experimental data were in good agreement with the predicted values using classic expressions.

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