一座大跨度山间人行景观桥方案设计

Scheme Design of a Large-Span Mountain Pedestrian Landscape Bridge

结合一座大跨度山间人行景观桥的工程条件和使用特点,对原景观设计的意象方案——岩锚单索面悬索桥进行深化与分析。特别是在施工和使用过程中存在的问题、风险不容忽视,并建设性提出应力带桥方案。对2个方案进行比选后,显示应力带桥在刚度、抑振性、经济性、环保及施工等方面优势明显,同时规避了不利的工程条件。应力带桥轻巧纤薄,可独立于地形条件方便修建,适用于山间建设;也可为类似景观桥设计提供参考。

Based on the engineering conditions & use characteristics of a large-span mountain pedestrian landscape bridge, the image scheme of the original landscape design:rock anchor single cable plane suspension bridge is deepened & analyzed. In particular, the problems & risks existing in the construction and use process should not be ignored, and the stress band bridge scheme should be put forward constructively. After comparison & selection of the two schemes, it is shown that the stress band bridge has obvious advantages in stiffness, vibration suppression, economy, environmental protection & construction, while avoiding adverse engineering conditions. The stress-band bridge is light and thin, which can be built independently of the terrain conditions and is suitable for mountain construction. It can also provide reference for similar landscape bridge design.