强冲击荷载作用下钢结构建筑毁伤后果研究

Damage Effect of Steel Structure Building Under Strong Impact Load

为研究现行典型钢结构建筑受强冲击荷载下毁伤情况和毁伤机理,开展了典型装配式钢结构工业厂房原型试验,并对强冲击荷载作用下试验厂房毁伤模式进行了模拟分析。研究表明:现行建筑标准下装配式钢结构工业厂房整体抗强冲击荷载能力较弱,墙面钢板在强冲击荷载作用时发生持续振动导致钢板连接处发生撕裂,振动频率与冲击荷载值成正相关关系。研究成果可为钢结构建筑抗强冲击荷载防护设计及加固提供参考。

In order to study the damage of typical steel structures under strong impact load,the damage mechanism of typical steel structures under strong impact load is studied.The prototype test of a typical prefabricated steel structure industrial workshop was carried out,and the damage mode of the workshop under strong impact load was simulated and analyzed.The results show that:under the current building standard,the strength of prefabricated steel structure industrial workshop is weak,and the continuous vibration of the steel wall plate under the action of strong impact load leads to the tear of the steel plate connection,and the vibration frequency is positively correlated with the impact load value.The research results can provide a reference for the design and reinforcement of steel structure building against strong impact load.