Support cast-in-place, pier top rotation and cast in cantilever combined construction method for continuous beams
A construction method and technology of cast-in-place piers, which are applied in bridges, buildings, bridge construction, etc., can solve the problems of complex internal force state, heavy weight, and technical difficulty, etc., achieve good environmental protection and energy saving benefits, ensure the laying period, reduce The effect of huge investments
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[0048] Such as figure 1 As shown, a continuous beam support cast-in-situ pier top rotation and cantilever pouring combined construction method includes the following methods, 1# pier construction and 2# pier construction respectively, wherein the construction steps of 1# pier are as follows.
[0049] S100~Strut erection construction: after the erection of the support is completed and the acceptance of the support is confirmed, carry out preloading to eliminate the non-elastic deformation of the support, determine the elastic deformation value, and then determine the elevation of the vertical formwork.
[0050] S200~Pier top swivel structure installation and construction.
[0051] The pier top swivel structure consists of an upper turntable, a lower turntable, a spherical joint, and a swivel traction system.
[0052] (1) Lower turntable:
[0053] The lower turntable plays the role of supporting the whole weight of the structure. The lower turntable is made of C50 concrete. ...
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