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首页> 外文会议>SP-230; International Symposium on Fiber-Reinforced Polymer(FRP) Reinforcement for Concrete Structures; 20051106-09; Kansas City,MI(US) >Punching Shear Capacity of Double Layer FRP Grid Reinforced Slabs
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Punching Shear Capacity of Double Layer FRP Grid Reinforced Slabs

机译：双层玻璃钢格栅板的冲剪能力

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摘要

The punching shear capacity of concrete slabs reinforced with three-dimensional fiber-reinforced polymer (FRP) double-layer reinforcement cages composed of glass fiber-reinforced pultruded grating elements has been investigated using full-scale experimental tests and a number of different analytical models. Test specimens were full-scale prototype bridge deck slabs with varying end restraint and support conditions, differing dimensions, and two different FRP bar fiber lay-ups. The tests results were compared with the punching shear models in ACI318, ACI440, Eurocode 2, BS 8110, CEB-FIB MC90, JSCE, and a number of models proposed in the literature specifically for FRP reinforced slabs. Based on this investigation a new empirical model has been developed to predict the punching shear capacity of double layergrids having either restrained orsimply supported edgesand includingan overlapping splice. The model is shown to give reasonably good predictions for both simply supported and restrained slabs.
机译：使用全尺寸实验测试和许多不同的分析模型，研究了由玻璃纤维增​​强拉挤格栅元件组成的三维纤维增强聚合物（FRP）双层增强笼增强的混凝土板的冲切剪切能力。测试样品是具有不同末端约束和支撑条件，不同尺寸以及两种不同FRP棒纤维铺层的全尺寸原型桥面板。将测试结果与ACI318，ACI440，Eurocode 2，BS 8110，CEB-FIB MC90，JSCE的冲剪模型以及文献中专门针对FRP增强板的许多模型进行了比较。基于这项研究，开发了一种新的经验模型来预测双层网格的冲切剪切能力，该双层网格具有受约束的边缘边缘或受支撑的边缘边缘并且包括重叠的接头。结果表明，该模型可以为简支板和受约束​​板提供合理的良好预测。

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