Confined Masonry (CM) buildings have been embraced in many countries due to simple construction methodology, affordability, and effectiveness in resisting the seismic loads safely in comparison to unreinforced masonry buildings. However, most of the available seismic design codes for CM are still under development with several gap areas remaining to be addressed. The present study is a step towards filling this gap by assessing the seismic design provisions for CM walls. Three CM walls of different aspect ratios (2.0, 1.5, and 1.0) were designed based on present international practice and corresponding half-scale specimens were tested under quasi-static cyclic loading. The results were compared in terms of damage, hysteresis behavior, deformation response, and yielding of longitudinal reinforcements in tie-columns. The test results highlighted the important role of aspect ratio, especially on the initiation of shear or flexural cracking in different members. The tie-columns of the squat wall suffered major damage quite early. A finite element numerical study was also carried out to simulate the key behavior of the tested specimens and gain a better visual understanding on the development of stresses and strains in different members of the specimens. The methods recommended in the existing seismic design codes were then used to predict the design values of shear and flexural strengths of the CM walls tested in the present and the past experimental studies by considering all the associated safety factors. Finally, a comparative design vs actual lateral strength assessment was carried out to compare the global safety margins obtained from different codes. It was observed that some codes provide considerable safety margins, whereas some do not, even after considering all the safety factors. This necessitates a need for extensive investigation to improve the design provisions of CM buildings in different parts of the world.

与未加固的砖石建筑相比，受限砖石 (CM) 建筑因其简单的施工方法、可负担性和在安全抵抗地震荷载方面的有效性而受到许多国家的欢迎。然而，大多数可用的 CM 抗震设计规范仍在制定中，还有几个空白区域有待解决。本研究是通过评估 CM 墙的抗震设计规定来填补这一空白的一步。根据目前国际惯例设计了三种不同纵横比（2.0、1.5和1.0）的CM墙，并在准静态循环加载下测试了相应的半尺度试件。结果在损伤、滞后行为、变形响应和系柱纵向钢筋屈服方面进行了比较。试验结果突出了纵横比的重要作用，特别是对不同构件中剪切或弯曲开裂的开始。蹲墙的系柱很早就遭受了重大损坏。还进行了有限元数值研究，以模拟测试试样的关键行为，并更好地直观了解试样不同构件中应力和应变的发展。然后，通过考虑所有相关的安全因素，使用现有抗震设计规范中推荐的方法来预测当前和过去实验研究中测试的 CM 墙的抗剪和抗弯强度设计值。最后，进行了比较设计与实际横向强度评估，以比较从不同规范获得的全球安全裕度。据观察，有些规范提供了相当大的安全裕度，而有些则没有，即使在考虑了所有安全因素之后也是如此。这需要进行广泛的调查，以改进世界不同地区的 CM 建筑的设计规定。