The excitation of a footbridge by a pedestrian passing over it can be unpleasant for a person walking or standing on the bridge, but usually not destructive for the structure itself.
人行桥由行人激起的振动一般不会导致结构本身的破坏，但会影响到桥上行人的舒适性。
The excitation of a footbridge by a pedestrian passing over it can be unpleasant for a person walking or standing on the bridge, but usually not destructive for the structure itself.
人行桥由行人激起的振动一般不会导致结构本身的破坏，但会影响到桥上行人的舒适性。
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