钢筋混凝土路面抗爆性能研究  

Research on Blast-resistant Capacity of RC Pavement

作　　者：许三罗[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：《爆破》2008年第1期5-11,共7页Blasting

摘　　要：钢筋混凝土路面在爆炸荷载作用下会发生开裂和沉陷。为了研究路面的损坏情况,利用有限元分析软件LS-DYNA对路面上方爆炸冲击波造成的路面破坏程度和破坏模式进行了模拟。首先,通过对混凝土的光滑面帽盖材料模型在单轴和三轴应力状态下进行模拟以验证材料模型的力学性能,并数值计算了爆炸荷载下混凝土板的响应情况。数值模拟结果显示连续面帽盖模型能够很好地模拟出混凝土的力学性能,数值模拟得到混凝土路面的破坏模式能够反映出实验结果。Reinforced concrete pavement under the impact of blast loading will result in cracking and subsidence. In order to investigate the damage degree of the pavement suffered from the blast wave generated from an air explosion above it,the finite element software LS-DYNA is used in this article to simulate the dynamic response and failure mode of the pavement. At first, the concrete material model continuous surface cap model（CSCM） is simulated under uniaxial and triaxial stress condition to test the mechanical properties of the model, and the response of a reinforced concrete slab on the soil under blast loading is simulated. The results indicate that the CSCM can simulate the mechanical properties properly and the failure model and the deformation of reinforced concrete pavement reflect the results of the experimentation.

关 键 词：爆炸荷载 LS—DYNA 钢筋混凝土路面 光滑面帽盖模型 有限元 

分 类 号：TU375[建筑科学—结构工程]