中文摘要：

为进行内部爆炸荷载作用下网壳结构的抗爆防护措施研究,运用有限元软件ANSYS/LS-DYNA建立了包含网壳杆件、檩托、檩条、铆钉、屋面板、墙体和地面在内的精细化K8型单层球面网壳模型,通过流固耦合算法使爆炸冲击波与结构相互作用,分析了局部杆件加固、屋面板的选取及墙体开洞等抗爆防护措施的效果,结果表明内部爆炸荷载作用下,通过对网壳外环杆件进行加固、选择轻质的薄屋面板、增大墙体开洞面积、增高墙体洞口位置及减小墙体洞口间距等措施,能够有效降低网壳结构的动力响应.

英文摘要：

To know the function of protective measures for reticulated shell subjected to internal blast loading, a fine finite element model for Kiewitt8 single-layer reticulated shell which contained reticulated shell member, purlin hanger, purlin, rivet, roof boarding, wall and ground was established by using finite element software ANSYS/LS-DYNA. The effect of reinforcement for reticulated shell member, selection of roof boarding and openings in the wall was studied by using ALE （Arbitrary-Lagrange-Euler） algorithm. The results showed that by selecting the outer-loop members to reinforce, choosing light roof boarding or thin roof boarding, increasing the opening rates and the height of position, and reducing the opening spacing l the dynamic response of the reticulated shell under internal blast loading could be reduced effectively.