提出了一种全新的FRP-混凝土的组合形式(带蒙皮FRP格栅增强混凝板),与之前的FRP格栅增强混凝土板件不同,该类型板件的最大特点在于FRP格栅下侧增设有FRP蒙皮。因此在浇筑时,该蒙皮既能充当浇筑混凝土时的模板,又能参与成型后板件的受力;预测了该类型板件可能出现的三种破坏模式,并且推导出了该类型板件在不同破坏模式下板件的抗弯极限承载力公式。
The essay advances a new form of FRP-concrete slab(concrete slab strengthened by FlIP grid with FRP facesheet ), being dif- ferent from the fore concrete slabs strengthened by FRP grid, its remarkable feature is that the facesheet works as two factors, when the concrete is casting, the facesheet can be the mould and after the slab is shaped, the facesheet can also bear the load as a portion of the slab. The essay also forecasts three failure modes of bending and derivates the flexural capacity under the three failure modes.