Construction method of formwork system for highly-deviated tower construction creeping formwork

Abstract

The invention discloses a construction method of a formwork system for a highly-deviated tower construction creeping formwork. The construction method comprises the following steps: A, building a formwork assembly; b, mounting a climbing frame system and a template; c, building a pull rod tying unit between the formwork assembly and the stiff framework, enabling a screw rod to penetrate into the formwork assembly, wherein one end of the screw rod extends out of the transverse back edge of the formwork assembly and is sleeved with a clamping nut, the clamping nut tightly presses the transverse back edge, the other end of the screw rod extends out of a panel of the formwork assembly and is sleeved with a conical connector, and the screw rod is sleeved with an adjusting nut, the adjusting nut is matched with the conical joint to tightly press the panel; the tie bar is inserted into the other end of the conical joint in a threaded fit manner; the other end of the lacing wire is welded with a stiff framework of the highly-deviated tower; d, pouring concrete; e, removing the mold; by installing the pull rod tying units, the distance between the panel and the binding steel bars on the outermost side of the stiff framework is adjusted, the stiff framework shares the concrete load, and the effect of reducing the load of the formwork is achieved.

Description

technical field [0001] The invention relates to the related technical field of leaning tower construction, in particular to a construction method of a formwork system used for climbing formwork in steep tower construction. Background technique [0002] Due to the certain inclination angle of the leaning tower column of the cable-stayed bridge without back cables, when using the traditional finished straight tower hydraulic climbing formwork system to construct the leaning tower, the upward formwork will bear part of the concrete weight of the poured section, while the stiff skeleton It cannot directly bear the weight of the newly poured concrete in an unset state, so it cannot bear the load together with the formwork, and the traditional tie rods added between the stiff skeleton and the formwork structure only serve to position the thickness of the concrete cover and cannot exert force. The skeleton is used to share the concrete load borne by the climbing frame, which may ca...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the excessive deformation of formwork and climbing frame affects the construction safety and high construction cost in the construction process of the existing leaning tower. The present invention provides a formwork system for the construction of steep tower construction The construction method, which has the characteristics of improving the force mode of the climbing frame, reducing the height of single pouring concrete and reducing the number of times of formwork; and the entire construction process saves time and effort, which can greatly save costs

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