近爆作用下钢筋混凝土框架的破坏分析

Investigation on damage mechanism of reinforced concrete frame structures under the close-in explosion

当爆炸在结构表面发生时,这种具有巨大能量的冲击作用将造成结构构件的损伤和破坏,而准确预测潜在爆炸对结构构件造成的危害是进行重要建筑物和防护结构抗爆设计的基础。为研究近爆作用下钢筋混凝土框架的抗爆能力,采用AUTODYN软件对钢筋混凝土框架在爆炸荷载下的破坏模式进行了数值模拟。研究结果表明,采用流固耦合数值模拟方法较合理地展现了钢筋混凝土框架的动态破坏过程。

When the explosion happened near the surface of structural,this tremendous impact energy will result in structural damage and destruction,and correctly predicting the damage caused by any potential explosion is essential to the design of important buildings and protective structures. In order to identify the anti-explosion performance of RC frame structures,a numerical simulation study on the damage mechanism under the close-in explosion was presented. It is found that the full processes of damage of RC frame structural are observed realistically using a coupled analysis scheme.