[提要]  利用研制的程序(IFSA)就桥式吊车及其它荷载作用下的屋盖网架与框架柱共同工作时的内力、位移等问题进行了研究和探讨，得出了桥式吊车荷载对整个厂房结构的影响范围及大小。结合某造船车间的网架结构设计，对该结构在不同荷载作用下，按传统的平面结构体系、网架与柱铰接和网参与柱刚接按空间结构体系三种不同方案进行了分析比较，证明了该类结构按空间体系计算的合理性和可行性。
[关键词]  网架 共同工作 桥式吊车  内力  位移

In this paper, IFSA programme is employed to study the internal force and displacement when the roofing grid and frame column under the effect of bridge crane and other loads work together. The scope and size of the impact of the bridge crane on the whole workshop structure are calculated. Combined with the design of grid structure of a shipyard workshop, the structure under different loading impacts are analysed.
Keywords:  space grid structure; work together; bridge crane