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为了探求大型拱顶储罐的合理设计方法， 在本文中给出了一个直径为２．５ｍ 的模型罐在内压及拱顶雪载作用下的弹性应力测试与内压弹性失稳的实验结果。罐的拱顶为加肋球壳， 承压圈为圆环壳， 肋与壳之间为间断焊接。文中给出了计及加强肋与不计及加强肋两种不同的有限元计算方案 （分别简称有肋与无肋方案） 所得数值解与实测值的比较。结果表明： 对于肋与壳间断焊的情况在内压作用下， 应力测试实验值与弹性内压失稳临界压力和按无肋方案计算值相一致；在拱顶雪载作用下， 应力测试值与按有肋方案计算值一致。实验还表明对于大型拱顶储罐，采用圆环壳型的承压圈有较好的承载能力， 这是一种合理的结构型式。
In order to explore the reasonable design method of large vault storage tank, the experimental results of the elastic stress test and internal pressure elastic instability test of a model tank with a diameter of 2.5m under internal pressure and vault snow load are given in this paper . The dome of the tank is a ribbed spherical shell, the pressure ring is a ring shell, and the space between the ribs and the shell is intermittent welded. In this paper, the numerical solutions and measured values obtained by considering two different finite element schemes (ribbed and ribless schemes) with and without reinforcement ribs are given. The results show that under the internal pressure, the experimental values of stress test are consistent with the critical pressure of instability of internal pressure and the calculated value of non-ribbed method. Under the snow load of dome, the stress test value Consistent with the cost of rib planning program. Experiments also show that for large vault storage tank, the ring shell type pressure ring has a better bearing capacity, which is a reasonable structure type.