Over the last few years, many studies were performed to investigate rubberized concrete’s behavior as a sustainable alternative for conventional concrete by replacing natural aggregates with recycling old rubber tires. These studies have shown that the concrete's mechanical and durability properties are significantly reduced, while its ductility and damping ratio improved. Accordingly, using this material in RC structures could be a promising solution for improving their energy dissipation capabilities. Currently, the literature lacks a numerical study that can highlight the effectiveness of using high-strength rubberized concrete for retrofitting RC structures subject to earthquake loadings . Therefore, this research investigates the seismic performance of reinforced concrete buildings strengthened using different high-strength rubberized concrete mixtures under various ground motion excitations. As a part of the study, finite element models of reinforced concrete structure retrofitted with these concrete mixes will be analyzed using nonlinear response history analysis and compared against two different control models composed of a bare structure and a jacketed RC structure using the control concrete mixture. In general, using rubberized concrete jacketing improved the seismic performance of the bare structure significantly. Furthermore, utilizing high-strength rubberized concrete rather than the control one resulted in increasing the damping energy and slightly reducing the base shear forces of the structure.

在过去的几年中，进行了许多研究来调查橡胶化混凝土作为常规混凝土的可持续替代品的性能，方法是通过回收旧橡胶轮胎代替天然骨料。这些研究表明，混凝土的机械性能和耐久性能显着降低，而其延展性和阻尼比得到改善。因此，在RC结构中使用这种材料可能是改善其能量消散能力的有前途的解决方案。当前，文献缺乏数值研究，该数值研究可以强调使用高强度的橡胶混凝土来加固受地震荷载作用的RC结构的有效性。因此，本研究探讨了在各种地面运动激励下，使用不同高强度橡胶混凝土混合物增强的钢筋混凝土建筑的抗震性能。作为研究的一部分，将使用非线性响应历史分析来分析使用这些混凝土配合料翻新的钢筋混凝土结构的有限元模型，并将其与使用控制混凝土混合物的裸露结构和夹套RC结构组成的两种不同控制模型进行比较。通常，使用橡胶混凝土护套可以显着改善裸露结构的抗震性能。此外，使用高强度的橡胶混凝土而不是控制混凝土会导致增加阻尼能量并稍微降低结构的基础剪力。