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介绍了爆炸塔结构的设计步骤,引出了作用在墙面上等效静荷载的确定方法,在此基础上用有限元分析软件SAP2000建立有无门洞的爆炸塔两个分析模型,通过施加荷载对其受力情况及极限破坏情况进行分析,结果表明:5 kg TNT当量的爆炸塔,门洞对爆炸塔的整体刚度影响不明显,爆炸塔在门洞处的变形很大;相比不带门洞的爆炸塔,带门洞的爆炸塔门洞处径向拉应力较大,爆炸塔门洞上侧环向拉压应力也较大,所能承受的径向荷载小于不带门洞的爆炸塔,5 kg TNT当量爆炸塔理论上可以承受约8 kg TNT爆炸荷载。
The design procedure of explosion tower structure is introduced, and the method of determining the equivalent static load acting on the wall is derived. Based on this, two analytical models of explosion tower with or without holes are established by finite element analysis software SAP2000. The results show that the explosion tower with 5 kg TNT equivalent has no obvious effect on the overall stiffness of the explosion tower and the detonation tower deforms greatly at the door opening. Tower, with a hole in the explosion of the tunnel gate radial tensile stress larger, blasting tower hole on the upper side of the tension and compression stress is larger, the radial load can withstand less than without a hole in the explosion tower, 5 kg TNT equivalent explosion The tower can theoretically withstand about 8 kg TNT explosion load.