Punching shear action has been a focus for research in the field of civil engineering and using a fiber-reinforced polymer (FRP) grid is a novel configuration of the engineering materials. We present the test results of an experimental program on the punching shear performance of carbon-fiber-reinforced polymer (CFRP) grid reinforced concrete slabs. Six full-scale 1600 × 1600 × 150 mm slab specimens including one control steel reinforced concrete (RC) slab and five CFRP reinforced concrete slabs were fabricated and tested under monotonic loading till failure. The experiment aimed to investigate the effects of CFRP grids as flexural reinforcement and shear reinforcement on the punching behaviour of concrete slabs. Furthermore, three different shear reinforcement layouts were devised to verify which arrangement is better. Compared with the control RC specimen, the concrete slab with CFRP grids as flexural reinforcement reached almost the same punching strength with a lower reinforcement ratio. Moreover, adding extra shear CFRP grids was beneficial for improving the resistance of the concrete slab to punching. Among the three topological schemes of shear CFRP gird arrangements, the perpendicular layout was proven to be more effective than radial and rectangular arrangements.

冲切剪切作用一直是土木工程领域研究的重点，并且使用纤维增强聚合物（FRP）网格是工程材料的一种新颖配置。我们介绍了关于碳纤维增强聚合物（CFRP）网格增强混凝土板冲切剪切性能的实验程序的测试结果。制作了六个全尺寸1600×1600×150 mm平板试样，包括一个对照钢筋混凝土（RC）平板和五个CFRP钢筋混凝土平板，并在单调荷载下进行了测试，直至破坏。该实验旨在研究CFRP网格作为抗弯加固和抗剪加固对混凝土板冲孔性能的影响。此外，设计了三种不同的抗剪钢筋布置以验证哪种布置更好。与对照RC试样相比，以CFRP格栅作为抗弯钢筋的混凝土板达到了几乎相同的冲孔强度，而钢筋比率却较低。此外，添加额外的剪力CFRP网格有利于提高混凝土板的抗冲孔性。在剪力CFRP网格布置的三种拓扑方案中，垂直布置比径向布置和矩形布置更为有效。