Progressive debonding in RC beams shear-strengthened with FRP side strips

机译：FRP侧板抗剪加固RC梁的渐进剥离

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Almost all reinforced concrete (RC) beams shear-strengthened with externally bonded FRP stripsrnon their sides fail in shear due to debonding of the FRP strips. The bond behaviour between the FRP strips andrnthe concrete substrate therefore plays a crucial role in the failure process of these beams. Despite extensivernresearch over the past decade, there is still a lack of rigorous modelling and understanding of how the debondingrnof the FRP strips in such a beam propagates and how the debonding process affects its shear behaviour. Thisrnpaper presents an analytical study on the progressive debonding of FRP strips in such strengthened beams. Therncomplete debonding process is modelled and the contribution of the FRP to the shear capacity of the beamrnis quantified. The validity of the analytical solution is verified by comparing its predictions with numericalrnresults from a finite element analysis. This analytical treatment also represents a significant step forward inrnunderstanding how interaction between FRP strips, steel stirrups and concrete affects the shear resistance of anrnRC beam shear-strengthened with FRP.

机译：几乎所有用外部粘结的FRP条抗剪加固的钢筋混凝土（RC）梁，其侧面均由于FRP条的脱粘而无法剪切。因此，FRP条和混凝土基材之间的粘结性能在这些梁的破坏过程中起着至关重要的作用。尽管在过去十年中进行了广泛的研究，但仍然缺乏严格的建模和对FRP条在这种光束中的剥离方式以及其剥离过程如何影响其剪切性能的理解。本文对这种增强型梁中的FRP胶条进行逐步脱胶进行了分析研究。对完整的脱胶过程进行建模，并量化FRP对to梁剪切能力的贡献。通过将解析解的预测结果与有限元分析的数值结果进行比较，可以验证解析解的有效性。这种分析方法也代表了向前迈出的重要一步，这是理解FRP条，钢箍筋和混凝土之间的相互作用如何影响FRP抗剪加固的anrnRC梁的抗剪强度的方法。

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来源
《International conference on structural engineering, mechanics and computation;SEMC 2010》|2010年|p.1197-1203|共7页
会议地点 Cape Town(ZA);Cape Town(ZA)
作者
J.F. Chen; G.M. Chen; J.G. Teng;
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作者单位

Institute for Infrastructure and Environment, School of Engineering, The University of Edinburgh, Edinburgh, UK;

Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, China;

Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, China;

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正文语种 eng
中图分类建筑结构;
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专利

1. Process of debonding in RC beams shear-strengthened with FRP U-strips or side strips [J] . G.M. Chen, J.G. Teng, J.F. Chen International Journal of Solids and Structures . 2012,第10期

机译：用FRP U型条或侧条抗剪加固的RC梁的脱胶过程
2. A proposed strengthening model considering interaction of concrete-stirrup-FRP system for RC beams shear-strengthened with EB-FRP sheets [J] . Li Weiwen, Hu Chengyue, Pan Zejie, Journal of Reinforced Plastics and Composites . 2018,第10期

机译：考虑Crc梁剪切和EB-FRP剪切强化混凝土梁 - FRP系统的相互作用的提出强化模型
3. Evaluation of FRP-to-concrete anchored joints designed for FRP shear-strengthened RC T-beams [J] . Godat Ahmed, Ceroni Francesca, Chaallal Omar, Composite Structures . 2017,第sepa期

机译：评估为FRP剪力增强的RC T梁设计的FRP到混凝土锚固节点
4. Progressive debonding in RC beams shear-strengthened with FRP side strips [C] . J.F. Chen, G.M. Chen, J.G. Teng International conference on structural engineering, mechanics and computation . 2010

机译：使用FRP侧面条带剪切RC梁的渐进式剥离
5. Behaviour and strength of RC beams shear-strengthened with externally bonded FRP reinforcement. [D] . Chen, Guang-Ming. 2010

机译：外部粘结FRP加固的RC梁的性能和强度。
6. Preloading Effect on Strengthening Efficiency of RC Beams Strengthened with Non- and Pretensioned NSM Strips [O] . Renata Kotynia, Marta Przygocka 2018

机译：预紧对非预应力NSM板条加固RC梁的效果
7. Process of debonding in RC beams shear-strengthened with FRP U-strips or side strips [O] . Chen, GM, Teng, JG, Chen, JF 2012

机译：用FRP U型条或侧条抗剪加固的RC梁的脱胶过程

Progressive debonding in RC beams shear-strengthened with FRP side strips

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