The key points of the structural design of the sightseeing tower in the Zhongdao Art Road by the Changjiang River in Chongqing were elaborated and analyzed.The sightseeing tower is divided into tower mast and ribbon.The height of the tower mast is 38.1m and the height of the ribbon is 25.66m.The tower mast is a spiral structure composed of three counterclockwise rotating twisted box columns and clockwise rotating spiral box beams orthogonal to each other,and the ribbon is a twisted structure composed of two twisted box beams and the middle connecting beams.The shape of the structure is complex,and the wind load shape coefficient of the structure was determined according to the wind tunnel test.The key members and joints of the structure were designed,and the finite element software MIDAS Gen and ABAQUS were used to analyze the deformation of the structure,the internal force and stress of the members,the overall stability of the structure and ultimate bearing capacity of the joints.The results show that the structure has high safety reliability.
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