This article discusses the results of an experimental program to retrofit unreinforced masonry walls by means of diagonal and vertical steel strips. The technique has several advantages such as simplicity to apply, relatively low costs, and insignificant disruption of service functions during the repair. The tests were conducted on three specimens: two with both diagonal and vertical steel strips and one with only diagonal steel strips, and all attached to one face of the walls. The tests showed that the steel strips improved lateral strength, increased non-linear displacement capacity, and changed the nature of the failure modes.

中文翻译：

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用钢带改善无筋砌体墙的面内地震反应

本文讨论了通过对角钢带和垂直钢带改造无钢筋砌体墙的实验计划的结果。该技术具有多个优点，例如应用简单、成本相对较低以及在维修期间对服务功能的干扰很小。测试在三个试样上进行：两个带有对角钢带和垂直钢带，一个只有对角钢带，并且都连接到墙壁的一个面上。试验表明，钢带提高了横向强度，增加了非线性位移能力，并改变了失效模式的性质。