间接承受吊车荷载的厂房钢柱，一般不考虑疲劳问题，但是在一些车间的钢柱上却出现了疲劳破坏。
The fatigue of steel columns indirectly subjected to crane loading is generally not taken into account. But fatigue failure occurred at the column cap in some workshops.
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。
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.
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