钢纤维混凝土、钢纤维钢筋混凝土抗接触爆炸试验研究  

The test research of steel fibers concrete and steel fibers reinforcedconcrete in anti-contact explosion

作　　者：王德荣[1] 王再晖[1] 曹奇[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《混凝土》2006年第8期8-11,共4页Concrete

摘　　要：采用28组钢板—钢纤维混凝土组合遮弹板以及4组钢筋混凝土遮弹板,运用几何相似的方法确定炸药量进行接触爆炸模型试验,得到了组合遮弹板的破坏形态和相应的参数;纤维体积率是影响抗爆性能的关键因素,厚度小纤维体积率高的抗爆试件其抗爆性能优于厚度大而纤维体积率低的情况;在遮弹板厚度为20cm时,钢纤维掺量采用1.5%～2.0%比较合适;显示了高纤维体积率时复合材料优异的吸收动能和抑制爆炸损伤的能力;综合发挥了钢纤维的增韧阻裂效应与钢筋的增强锚固效应及其两者的协同作用,从而有效地提高了承受高速动载能力,既降低了成本,又方便了施工。The shield layer is compounded by 28 group of armor plate-steel fibers concrete and 4 group of reinforced concrete, the quantity of explosive is confirmed by the theory of geometric similarity, the broken form and relevant parameters was received after the model test of contact-blast; the volume rate of fiber is the key factor that affect the capability to the anti- explosion, the thinner and higher test sample＇s capability is better than the thicker and lower one; when the thickness of the shield layer is 20 centimeter, the content of steel fibers between 1.5% and 2.0% is better; it also shows outstanding capability of absorbing of kinetic energy and controlling of blast scathing; the effect of reinforced toughness to the craze and reinforced anchor exert to improve the ability of endurance of high speed loading, it not only reduce the cost but also improve the convenience of construction.

关 键 词：爆炸力学 遮弹板 接触爆炸 局部破坏 

分 类 号：TU528.572[建筑科学—建筑技术科学]