中文摘要：

水平冲击荷载是更贴近于现实生活中外部物质碰撞、泥石流地质灾害、恐怖袭击等的冲击荷载类型.首先介绍了冲击荷载作用的分析方法,然后在ANSYS/LS-DYNA软件中建立了跨度60m的K6型单层球面网壳抗水平冲击模型,不断变换冲击物的质量和速度对结构进行冲击.结果表明,水平冲击荷载作用下结构的动力响应过程可以分为五个关键性阶段和三种冲击模式;随着冲击物质量与速度的不断增加,网壳水平向变形、主要杆件受力和冲击力会不断增大,当质量与速度增加到一定值后,三者均不再变化;在整个冲击过程中的能量损失会随冲击力的增大而增多.

英文摘要：

Horizontal impact load is closer to real life than other loads,such as external object collision,debris flow hazards,terrorist attacks,etc.Analysis method of impact action was introduced.Antihorizontal impact model of K6single-layer reticulated shell structure with a span of 60 mwas established by ANSYS/LS-DYNA,and the mass and velocity of the impactor have been changed to impact the shell.Result shows that dynamic response process of the structure can be divided into five key stages and three impact modes under horizontal impact load.Horizontal deformation,the force of the main bar and impact force continue to increase with the increase of the mass and velocity of the impact matter.When the mass and velocity increase to a certain value,they will no longer change.Energy loss also increases with the increase of impact force in the process of impact action.