Formwork creeping method for novel 1.6 parabola-shaped four-column type hollow variable section high pier

Abstract

The invention provides a formwork creeping method for a novel 1.6 parabola-shaped four-column type hollow variable section high pier. The method comprises the following steps: burying an embedded part into concrete; mounting a guide rail on the embedded part; realizing the climbing of a formwork system by utilizing the interaction between the guide rail and a pylon. The process of formwork creeping is that mounting a lower frame body, mounting an upper frame body, pouring concrete, moving the upper frame body backwards, moving upwards and fixing the guide rail, moving upwards the hydraulic pressure of the frame bodies, moving forwards the upper frame body, and pouring concrete at the next section. According to the invention, the formwork creeping method is ingenious in conception, enables the erecting structure of a 1.6 parabola-shaped high pier formwork to be reasonable, is safe to use, flexible to assemble, and convenient to refit, saves construction cost, and greatly shortens construction period.

Description

technical field [0001] The invention relates to building construction, in particular to a climbing formwork construction technology for a novel column-slab type hollow high pier. Background technique [0002] During the construction of high bridge piers, the common cross-section forms of bridge piers are constant cross-section and quadratic parabolic cross-section. This type of pier formwork is easier to control the linear structure of the formwork in the process of raising the mold, the assembly and fixing process between the formwork is simple, and the gap between the formwork is easier to control. [0003] The more common parabolic cross-sections are 1.6-degree parabola and 1.8-degree parabola. During the construction of these piers, the linear structure of the formwork is difficult to control, the formwork gap is large, and various problems are prone to occur in installation, reinforcement or deviation correction. All brought various troubles to the expected completion ...

AI Technical Summary

Problems solved by technology

[0003] The more common parabolic cross-sections are 1.6-degree parabola and 1.8-degree parabola. During the construction of these piers, the linear structure of the formwork is difficult to control, the formwork gap is large, and various problems are prone to occur in installation, reinforcement or deviation correction. Both caused all sorts of troubles for the expected completion of the bridge construction.

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