在吊车荷载反复作用下，疲劳强度不足，因而出现疲劳破坏。
Under the repeated loading of the cranes, the fatigue strength of the columns is insufficient, and fatigue failures occurred.
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.
论述了在吊车荷载作用下的简支吊车梁的弯矩包络图的分段、方程求法，最后通过实例说明包络图的绘制。
The paper discussed the sectionalization, the method for finding equation and the drawing of the envelope graph of bending moments of the simple crane girder under the action of crane loads.
通过对某工程实例吊车荷载作用下排架侧向位移的计算，证明桩的变形对排架侧向位移影响较大，尤其桩顶转角的影响大。
The analysis of a crane load example shows that the pile deformation, especially the pile top rotation, greatly influence the frame lateral displacement.
在预应力加固设计方面，钢吊车梁与混凝土吊车梁不同，由于其刚度较小、挠度较大，当吊车荷载作用上去后，会引起水平拉杆作用效应增量。
The steel crane girder's rigidity is smaller and its deflection is larger, when the crane moves, there will be force increment in the prestressed horizontal tie.
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.
可能的地震效应也是侧向荷载。吊车活动产生的动力效应也部分地计人侧向荷载。
The probable effects of seismic disturbance are also lateral loads. The dynamic effects of crane movement may also be considered, in part, as lateral load.
并以简化的荷载效应组合概率模型，计算出多台吊车组合时的荷载折减系数。
The load reduction factors of the multiple cranes are estimated with simplified probabilistic model of the load effect combination.
吊车活动产生的动力效应也部分地计人侧向荷载。
The dynamic effects of crane movement may also be considered, in part, as lateral load.
通过对一个已使用40多年的钢筋混凝土吊车梁碳纤维加固后的现场加载试验，分析了加固后吊车梁在吊车移动荷载作用下正截面和斜截面的应变分布规律及挠度变化规律。
Based on the field load tests of more than 40 years old a reinforced concrete crane girder after strengthening strengthened with CFRP, the strains and deflections under the moving loads were analyzed.
目前，吊车轮压荷载作用下工字梁腹板的局部屈曲鲜有研究，这主要是由于无法得到轮压荷载作用下承压应力在腹板内的分布规律。
The local buckling of web plates in I-girders under wheel loading has been rarely investigated, due to the unknown distribution of bearing stresses in the web plates.
目前，吊车轮压荷载作用下工字梁腹板的局部屈曲鲜有研究，这主要是由于无法得到轮压荷载作用下承压应力在腹板内的分布规律。
The local buckling of web plates in I-girders under wheel loading has been rarely investigated, due to the unknown distribution of bearing stresses in the web plates.
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