利用加载车辆的竖向冲击作用，激起桥梁的竖向振动，简称“跳车试验”，这种方法在动力荷载试验中广泛使用。
Using loads vehicles' vertical shock effect, arouses the bridge the vertical vibration, the abbreviation "jump experiment", this method in dynamic load experiment widespread use.
当荷载作用边界随时间变化及在动力荷载作用下，网格生成器可随应力集中区域的变化而动态退化与再加密网格。
When the load boundaries vary with time and under the dynamics loads, the mesh generator can derefinement and re-refinement dynamically mesh with moving of stress concentration region.
当框架受动力荷载作用时，这种填充墙主要受水平力的作用，避免了斜向的受压破坏。
When a frame subject . to dynamic loads, the filled wall mainly accept horizontal forces and the damage of oblique pressure can be avoided.
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