车轮荷载作用下的应力分布规律。
When vihecle load was applied on the girder, how the stress distribution changed.
列车制动过程中，车轮荷载作为移动荷载作用于线路和桥梁结构。
In course of train's braking, wheel load bring pressure to track and bridge structure qua locomotive load.
由于三维模型所采用的车轮荷载更加符合实际作用的荷载，所以三维模型的结果更加准确。
As the wheel load assumed in three dimensional model is more consistent to practical loading, the results are more accurate.
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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