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首页> 外文期刊>American journal of engineering and applied sciences >Modeling of Reinforced Concrete Frames with Infill Walls Under Cyclic Loading Strengthening with CFRP
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Modeling of Reinforced Concrete Frames with Infill Walls Under Cyclic Loading Strengthening with CFRP

机译：CFRP循环加固填料填料钢筋混凝土框架的建模

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摘要

Nowadays, using infill isolators in Reinforced Concrete (RC) structures is very common. In earlier research this infill isolators are usually considered as non-structural elements, but in recent researches it was demonstrated that infill has considerable effects on natural period, stiffness, strength and overall behavior of structure specially when it is subjected to seismic ground motions. In this study a one-bay two-story masonry infilled RC frame is considered for a laboratory sample and various layouts of Carbon Fiber Reinforced Polymer (CFRP) layers have been used to retrofit and strengthen of masonry infill wall. These specimens have been modeled in ABAQUS and analyzed under cyclic loading with Finite Element Method (FEM). FEM analysis have been carried out using ABAQUS/Explicit software and analysis type have been chosen dynamic explicit. Finally, results of Finite Element Analysis have been compared against the experimental results. The effect of different CFRP configurations of retrofitting on ductility, ultimate lateral load capacity, stiffness and energy dissipation capacity of specimens have been discussed. Thereupon the best configuration has been proposed in terms of cost effectiveness and ductility. The results showed that in the frame with infill wall comparing with bare frame, load capacity increased about 277.35% and by comparing infilled frame with or without CFRP, it can be concluded that using CFRP can increase lateral load capacity of masonry infilled RC frames.
机译：如今，使用钢筋混凝土（RC）结构中的填充隔离器非常普遍。在早期的研究中，这种填充隔离器通常被认为是非结构元素，但在最近的研究中，据证明填充对自然时期，刚度，强度和结构的整体行为具有相当大的影响，当它受到地震地面运动时，填充的结构。在这项研究中，一架一架两层玻璃浆液的RC帧被认为是实验室样本，并且已经使用各种碳纤维增强聚合物（CFRP）层的布局来改造和加强砌体填充壁。这些样本已在ABAQUS中进行建模，并在循环载荷下进行有限元法（FEM）。使用ABAQUS /显式软件和分析类型进行了有限元分析，并选择了动态显式。最后，已经将有限元分析的结果与实验结果进行了比较。已经讨论了不同CFRP配置对延展性，最终横向载荷能力，刚度和试样能量耗散能力的影响。因此，在成本效益和延展性方面提出了最佳配置。结果表明，在与裸露框架的框架与裸露框架相比，负载能力增加约277.35％，并且通过比较有或没有CFRP的infilled框架，可以得出结论，使用CFRP可以增加砌体infiLed RC框架的横向载荷能力。

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