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首页> 外文期刊>Arabian Journal for Science and Engineering >Seismic Behavior and Damping Efficiency of Reinforced Rubberized Concrete Jacketing
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Seismic Behavior and Damping Efficiency of Reinforced Rubberized Concrete Jacketing

机译：钢筋混凝土夹套的地震行为及阻尼效率

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摘要

Over the last few years, many studies were performed to investigate rubberized concrete’s behavior as a sustainable alternativefor conventional concrete by replacing natural aggregates with recycling old rubber tires. These studies have shown thatthe 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 rubberizedconcrete for retrofitting RC structures subject to earthquake loadings. Therefore, this research investigates the seismicperformance of reinforced concrete buildings strengthened using different high-strength rubberized concrete mixtures undervarious ground motion excitations. As a part of the study, finite element models of reinforced concrete structure retrofittedwith these concrete mixes will be analyzed using nonlinear response history analysis and compared against two differentcontrol models composed of a bare structure and a jacketed RC structure using the control concrete mixture. In general, usingrubberized concrete jacketing improved the seismic performance of the bare structure significantly. Furthermore, utilizinghigh-strength rubberized concrete rather than the control one resulted in increasing the damping energy and slightly reducingthe base shear forces of the structure.
机译：在过去几年中，进行了许多研究，以调查橡胶混凝土的行为作为可持续的替代方案通过用回收旧橡胶轮胎取代自然聚集体来进行常规混凝土。这些研究表明混凝土的机械和耐久性性能显着降低，而其延展性和阻尼比率提高。因此，在RC结构中使用该材料可能是提高其能量耗散能力的有希望的解决方案。目前，文献缺乏一个数值研究，可以突出使用高强度橡胶的有效性混凝土改装RC结构受地震载荷的影响。因此，这项研究调查了地震使用不同高强度橡胶混凝土混合物加强钢筋混凝土建筑的性能各种地面运动激励。作为研究的一部分，有限元模型的钢筋混凝土结构改装将使用非线性响应历史分析分析这些混凝土混合物，并将其与两种不同进行比较控制模型由裸露的结构和使用控制混凝土混合物的夹套RC结构组成。一般来说，使用橡胶混凝土护套显着提高了裸露结构的地震性能。此外，利用高强度橡胶混凝土而不是对照导致延长阻尼能量和略微减少结构的基础剪切力。

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