With high-strength materials, new structure, new construction technology and modern methods of structural analysis used, the pedestrian bridge strides greatly to light quality, long-span and soft. The self vibrate frequency of the structure is more and more low.
随着高强材料、新颖结构体系、新的施工工艺及现代的结构分析方法的采用,人行桥正朝着轻质、大跨、纤柔的方向发展,由此造成结构的自振频率越来越低,行人激励下容易引发结构的大幅度振动,给行人带来不适感,因此在人行桥设计阶段分析桥梁振动幅度、评价行人的舒适性十分必要。
参考来源 - 行人激励下人行天桥的振动舒适性研究·2,447,543篇论文数据,部分数据来源于NoteExpress
他们不得不抓着当作栏杆用的绳子,走过一架应急人行桥。
They had to walk across an emergency footbridge, holding onto a rope that served as a rail.
现在一座人行桥连通车库和购物中心。
A pedestrian bridge now connects the parking garage with the mall.
旅游者通过一座横跨小溪的人行桥从一边走到另一边。
Travellers get from one side to the other by walking across a footbridge that spans a little stream.
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