桁架式钢筋混凝土叠合板式墙抗爆性能实验  

Anti-blast properties of RC superimposed slab shear wall

作　　者：吴保桦 张尚根[1] 康正炎 

机构地区：[1]解放军理工大学国防工程学院,江苏南京210007

出　　处：《爆炸与冲击》2017年第1期92-98,共7页Explosion and Shock Waves

基　　金：总参南京科技创新工作站科研项目(NJCX-RW-20110247)

摘　　要：为研究桁架式叠合板式墙的抗爆性能,进行了2块桁架式叠合板式墙和2块现浇板式墙在多次冲击荷载作用下的对比实验,分析了各试件的破坏过程、变形(刚度)、承载力、强度及裂缝分布形态。结果表明:桁架式叠合板式墙与现浇板式墙相比,爆炸破坏过程相似;爆炸荷载小时,试件处于弹性状态,两者刚度基本一致;开裂后,现浇板式墙比叠合板式墙刚度降低明显快,桁架钢筋能有效抑制裂缝扩展,且试件并未出现剪切破坏。说明桁架式叠合板式墙的整体性能较好,叠合板式墙的抗爆性能优于现浇板式墙。In order to analyze the anti-blast properties of the RC superimposed slab＇s shear wall, comparative experimental studies of two RC superimposed slab shear walls and two in-situ cast shear walls under explosion were conducted. The structural failure feature, deformation capability, bearing capacity and crack distribution pattern were analyzed systematically. The result shows that the failure mode of the RC superimposed slab shear wall is similar to that of the in-situ cast shear wall. The stiff- ness of two kinds of specimen are basically identical within the elastic stage. But the post-cracking stiffness＇ descending speed of the in-situ cast shear wall is greater than that of the RC superimposed slab shear wall. The RC superimposed slab effectively restrained the crack extension and there were no shear failure throughout the loading procedure, which proves its high integrity. The blasting-re- sistance performance of the RC superimposed slab shear wall is superior to that of the in-situ cast shear wall.

关 键 词：爆炸力学 抗爆性能 爆炸实验 桁架式叠合板式墙 

分 类 号：O383.2[理学—流体力学] TU362[理学—力学]