本文以大连南部滨海大道悬索桥猫道为研究对象,提供一种利用midas civil软件对连续式猫道索结构进行设计计算的方法,具有较强通用性。并结合大连当地环境,对计算中考虑的荷载组合进行一定调整。计算风荷载时,采用了静三分力系数法,更符合柔性索结构实际受力情况。 In this paper, the catwalk of the Dalian-Binhai Avenue Suspension Bridge is taken as the research object, and a method of using midas civil software to design and calculate the continuous catwalk cable structure is provided, which is of great versatility. Combined with the local environment in Dalian, the calculation of the load combination to be adjusted. When calculating the wind load, the static three component force coefficient method is adopted, which is more in line with the actual force situation of the flexible cable structure.