有限厚块石砌体钢筋混凝土结构板抗贯穿性能的实验研究

用花岗岩和混凝土制备出了花岗岩板、钢丝网混凝土板、花岗岩与钢丝网混凝土组合板、花岗岩块石砌体钢筋混凝土结构板4种类型的有限厚靶板。采用口径为30 mm的火炮作为发射装置，利用形状相同、材料强度不同的2种弹体对上述靶板进行了侵彻贯穿实验，比较了各类靶板抗侵彻贯穿破坏现象。结果表明，设计良好的块石砌体钢筋混凝土结构板具有优良的抗贯穿性能，且其抗贯穿性能与块石粒径、块石强度、块石砌筑方式、粘结强度和钢筋混凝土结构形式密切相关。

Experimental study on perforation resistance of composite targets composed by granite block masonry and reinforced concrete plates

Four kinds of finite thickness target plates were prepared, including granite (G) plates, steel wire-mesh reinforced concrete (RC) plates, composite GRC targets composed by granite (G) plates and steel wire-mesh reinforced concrete (RC) plates, and composite GBRC targets composed by granite block (GB)masonry and steel wire-mesh reinforced concrete (RC) plates. By using a 30-mm-caliber gun to accelerate two kinds of projectiles of the same shape which differ in material strength, penetration experiments were carried out for these prepared target plates, respectively. The damage effects of the target plates subjected to projectile penetration were compared. The results show that the well-designed GBRC targets have the best resistance to perforation. And the perforation resistance of the GBRC targets is closely related with the following factors: block stone size, strength, masonry way, and reinforced concrete structure.