This paper introduces the design and construction case study of a 201-meter-long, non-tower, hyperbolic cable net suspension footbridge built in the Hantangang Gorge, a UNESCO Global Geopark. In an environment where unstable ground conditions made wind cable installation difficult, lateral stability and wind resistance performance were secured by utilizing a double helical cable net structure. The effectiveness was demonstrated through structural analysis and wind tunnel tests. Additionally, an innovative sequential construction method using ring beam support devices was proposed to enhance construction efficiency. This study shows that the hyperbolic module of the cable net structure can be an alternative for suspension bridge design that considers scenery, constructability, and stability.
Lee et al. (Wed,) studied this question.
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