There is a lack of studies available in the literature focusing on the reinforcement of slender masonry columns commonly observed in the practice. This work presents the results of an experimental investigation on the effect of bar mesh high ductile concrete (BMHDC) on the mechanical behavior of slender masonry columns subjected to different eccentric axial loading. Eighteen full-scale rectangular specimens with a length of 2400 mm (aspect ratio of 10) were prepared and tested under three different eccentricity-to-section height (e/h) ratios (0, 0.15 and 0.3). For each loading eccentricity, three unreinforced columns as control specimens and three columns strengthened with two-sided BMHDC system were tested. The behavior of slender columns was presented and discussed based on failure mode, axial load-displacement relationships, peak load and axial deformation. The results showed that the peak load gain caused by BMHDC system increased as e/h increased. Besides, the stiffness, deformability, energy dissipation and flexural capacity were also improved by BMHDC system. Considering the additional eccentricity caused by lateral deflection mostly observed in the slender columns, a second-order analysis was carried out to predict the axial load bearing capacity of tested columns. A comparison between predicted values and results obtained from current study validated the accuracy and effectiveness of the analysis.

文献中缺乏针对在实践中通常观察到的细长砖石柱加固的研究。这项工作提出了对钢筋网高延性混凝土（BMHDC）对承受不同偏心轴向载荷的细长砖石柱力学性能影响的实验研究结果。制备了18个长度为2400 mm（纵横比为10）的矩形矩形标本，并在三种不同的偏心距-截面高度（e / h）比率（0、0.15和0.3）。对于每个荷载偏心率，测试了三根无筋柱作为控制样本，以及三根用双面BMHDC系统加固的柱。根据破坏模式，轴向载荷-位移关系，峰值载荷和轴向变形，提出并讨论了细长柱的行为。结果表明，BMHDC系统引起的峰值负载增益随着e / h的增加而增加。增加。此外，BMHDC系统还改善了其刚度，可变形性，能量耗散和挠曲能力。考虑到通常在细长柱中观察到的由侧向挠度引起的附加偏心率，因此进行了二阶分析以预测被测柱的轴向承载能力。预测值与当前研究结果之间的比较验证了分析的准确性和有效性。