Research On Construction Technology For Inclined Pylon Double Plane Harp Cable Stayed Bridge Without Back Cable

Tonglinglu Bridge in HeFei City introduced in this thesis is a new type of cable-stayed bridge without back rope, which balances the load and the king post through the gravity of the diagonal tower column so as to form a unique stress transmission system. This article systematically elaborates the construction technology of the substructure, cast-in-situ concrete king post, the internal bracing main tower bracket and the construction monitoring, studies the technology method of the king post and the main tower design, and the construction technology and monitoring of the stress transmission to the cable tower structure in the construction of king post support method. The main abstract of the thesis is as follows:1. Construction technology of the substructureBriefly introduces the works situation of the substructure, describes the construction technology of excavation and protection of large-diameter dug pile and digging in weak geological layers; introduces the calculation method of teat insulation elevation of temperature of mass concrete, the control measures adopted during construction, the heat and moisture preservation of the concrete surface after the construction; describes the construction scheme of the steel sheet pile coffer dam in construction of the foundation and the matters needing attention and so on.2. Construction technology of main beamBriefly introduces the design of the king post; expounds the structure analysis of the king post, the design of the bracket of the king post and the pre-set arch; bracket construction and pre-loading,...