战时人防荷载下全埋的单建式人防工程的动力分析

Analysis Of Civil Air Defence Works Under Dynamic Load of Nuclearor Aerial Bomb Blast

采用三维动力有限元分析考虑核武器爆炸的一次作用或常规武器炸弹非直接命中情况下单建式人防工程的动力响应,并与常规计算方法所得结果作比较,得出等效静载计算方法与实际动力响应分析两种计算结果的差异,并得出一些指导设计的认识和结论。

In this paper , three dimensional finite element method （FEM） is adopted to analyse the reaction of civil air defence works under dynamic load of nuclear or indirect hit aerial bomb blast. According to assumpted element types,mesh density and time steps, a calculation model of a civil air defence work is constructed to calculate the responses of the defence work under the dynamic load. Compared with the results from equivalent load method, some conclusions are made for design of the project.