ABSTRACT

In this study, the seismic behaviors of strengthened three-dimensional frames, as in real-life structures, are presented. Three reinforced concrete (RC) frames, containing common structural deficiencies were constructed to represent existing older structures. The bare, damaged, and undamaged frames, strengthened by RC external shear walls with steel tie beams, were tested under a reversed cyclic load. The experimental results indicated that strengthening by external shear walls made significant contributions to the frames in lateral strength, stiffness, and energy dissipation capacity. This proposed method appears to be an efficient technique for strengthening structures in an effective, economical, and practical way.

摘要

在这项研究中，展示了与现实结构一样的加强型三维框架的抗震性能。三个钢筋混凝土 (RC) 框架包含常见的结构缺陷，用于代表现有的旧结构。裸露的、损坏的和未损坏的框架，由带有钢系梁的 RC 外剪力墙加固，在反向循环载荷下进行了测试。实验结果表明，外剪力墙加固对框架的横向强度、刚度和耗能能力有显着贡献。这种提议的方法似乎是一种以有效、经济和实用的方式加固结构的有效技术。