Tests of concrete flanged beams reinforced with CFRP bars

A. F. Ashour; M. Family

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Tests of concrete flanged beams reinforced with CFRP bars

机译：CFRP筋加固的混凝土翼缘梁的测试

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Tests results of three flanged and two rectangular cross-section concrete beams reinforced with carbon fibre reinforced polymer (CFRP) bars are reported. In addition, a companion concrete flanged beam reinforced with steel bars is tested for comparison purposes. The amount of CFRP reinforcement used and flange thickness were the main parameters investigated in the test specimens. One CFRP reinforced concrete rectangular beam exhibited concrete crushing failure mode, whereas the other four CFRP reinforced concrete beams failed owing to tensile rupture of CFRP bars. The ACI 440 design guide for FRP reinforced concrete members underestimated the moment capacity of beams failed owing to CFRP tensile rupture and reasonably predicted deflections of the beams tested. A simplified theoretical analysis for estimating the moment capacity of concrete flanged beams reinforced with FRP bars was developed. The experimental moment capacity of the CFRP reinforced concrete beams tested compared favourably with that predicted by the theoretical analysis developed.

机译：报告了用碳纤维增强聚合物（CFRP）筋加固的三个带凸缘和两个矩形截面混凝土梁的测试结果。此外，还对用钢筋加固的配套混凝土带凸缘的梁进行了测试，以进行比较。在试样中研究的主要参数是所使用的CFRP增强材料的数量和法兰厚度。一根CFRP钢筋混凝土矩形梁表现出混凝土破碎破坏模式，而另外四根CFRP钢筋混凝土梁则由于CFRP钢筋的拉伸断裂而失效。针对FRP钢筋混凝土构件的ACI 440设计指南低估了由于CFRP拉伸断裂和合理预测的测试梁挠度而导致梁的破坏能力。开发了一种简化的理论分析，用于评估玻璃纤维增强的钢筋混凝土法兰梁的弯矩承载力。所测试的CFRP钢筋混凝土梁的试验弯矩承载力与所开发的理论分析所预测的相称。

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来源
《Magazine of Concrete Research》 |2006年第9期|p.627-639|共13页
作者
A. F. Ashour; M. Family;
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作者单位

School of Engineering, Design and Technology, University of Bradford, UK;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类水泥工业;
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3. Fatigue behavior of concrete beams reinforced with glass- and carbon-fiber reinforced polymer (GFRP/CFRP) bars after exposure to elevated temperatures [J] . Zhao Jun, Li Guanghui, Wang Zike, Composite Structures . 2019,第Deca期

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4. Flexural Behaviour of CFRP Reinforced Concrete Flanged Beams [C] . A. F. Ashour, M. Family International Conference on Civil, Structural and Environmental Engineering Computing . 2005

机译：CFRP钢筋混凝土法兰梁的弯曲行为
5. Non-linear analysis of concrete beams prestressed and post-tensioned with carbon fiber reinforced polymer (CFRP) bars. [D] . Abd El Aziz, Mohamad Fathy. 2006

机译：碳纤维增强聚合物（CFRP）筋预应力和后张混凝土梁的非线性分析。
6. Short-Term Flexural Stiffness Prediction of CFRP Bars Reinforced Coral Concrete Beams [O] . Lei Wang, Jin Yi, Jiwang Zhang, 2021

机译：CFRP钢筋增强珊瑚混凝土梁的短期弯曲刚度预测
7. Tests of concrete flanged beams reinforced with CFRP bars. [O] . Ashour Ashraf F., Family M. 2006

机译：CFRP筋加固的混凝土翼缘梁的测试。

Tests of concrete flanged beams reinforced with CFRP bars

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