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首页> 外文期刊>Engineering Structures >Identifying the contributing mechanisms of textile reinforced concrete (TRC) in the case of shear repairing damaged and reinforced concrete beams
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Identifying the contributing mechanisms of textile reinforced concrete (TRC) in the case of shear repairing damaged and reinforced concrete beams

机译：确定在剪切修复受损和钢筋混凝土梁的情况下纺织钢筋混凝土（TRC）的作用机理

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The aims of this work are to assess the mechanical performance of textile reinforced concrete (TRC) in the shear repair of reinforced concrete beams and then compare it to more traditional solutions, such as CFRP (Carbon Fibre Reinforced Polymer), and to identify the local mechanisms of damage and failure of the repaired beams. Two types of implementation are considered: the hand lay-up in situ and the bonding of prefabricated plates. The results show that TRC performs well compared with CFRP and has qualitatively similar effects on the overall behaviour of the repaired beams. However, the contribution of the TRC is clearly stabilised, as shown by an operating model based on the truss analogy, which permits the systematic yielding of the transverse steel rebar. This stabilisation can be attributed to a localised TRC behaviour that depends on the implementation chosen and most likely on the rigidity of the interface (TRC mortar/substrate of the beam) or the interphase.
机译：这项工作的目的是评估纤维增强混凝土（TRC）在钢筋混凝土梁的剪切修复中的机械性能，然后将其与更传统的解决方案（例如CFRP（碳纤维增强聚合物））进行比较，并确定局部修复梁损坏和失效的机理。考虑了两种类型的实施方式：原位手工铺装和预制板的粘合。结果表明，与CFRP相比，TRC的性能良好，并且对修复后的梁的整体性能有定性相似的影响。但是，如基于桁架类比的运行模型所示，TRC的贡献显然是稳定的，这允许横向钢筋的系统屈服。这种稳定性可归因于局部的TRC行为，该行为取决于所选择的实现方式，并且最有可能取决于界面（TRC砂浆/梁的基底）或相间的刚度。

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