Cable bent tower combined type inner slip-form construction method and inner platform frame for method

Abstract

The invention discloses a cable bent tower combined type inner slip-form construction method and an inner platform frame for the method. The method comprises the following steps that (1) an integrated inner formwork is machined, and the inner platform frame is machined and assembled; (2) the integrated inner formwork and the inner platform frame are hoisted into a pylon inner cavity; (3) an upper platform is fully paved with pylon steel bars; (4) after the pylon steel bars are installed, the inner formwork is pushed backwards to be hung on the integrated platform; (5) the integrated inner formwork and edge-covered formworks are lifted and reinforced; (6) after the formworks are reinforced, the upper platform is fully poured with concrete; (8) after the first section of a pylon is poured, the inner formwork is detached, and the platform frame is hoisted; and (9) the step (3) is repeated till all sections of the pylon are constructed. The inner platform frame comprises a support and a platform. The cable bent tower combined type inner slip-form construction method and the inner platform frame for the method facilitate slip-form construction, using is convenient and flexible, the inner platform frame can be adjusted according to the size and slope of a cable bent tower inner cavity, construction is rapid, and the cable bent tower combined type inner slip-form construction method and the inner platform frame for the method have the advantages that safety and reliability are achieved, the construction risk resistance is high, quality is easy to guarantee, and construction investment is economical and reasonable.

Description

technical field [0001] The invention belongs to the technical field of internal sliding formwork construction, and in particular relates to a cable tower combined internal sliding formwork construction method and an internal platform frame thereof. Background technique [0002] In recent years, according to the national "five vertical and seven horizontal" development plan, my country's expressway construction has entered a period of rapid development. There are more and more constructions of various cable-stayed bridges and suspension bridges. As the height of cable tower structures increases For the construction of the inner cavity of the tower column, a single formwork is generally used for assembly and a single inner platform construction. This construction method has the following problems: [0003] 1. The installation of the inner formwork needs to be hoisted in from the outside of the tower and the removal of the inner formwork needs to be hoisted out by the tower cran...

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Problems solved by technology

[0003] 1. The installation of the inner formwork needs to be hoisted in from the outside of the tower and the removal of the inner formwork needs to be hoisted out by the tower crane, which increases the hoisting capacity of the tower crane, and the hoisting is greatly affected by the windy weather; 2. The single platform is inconvenient for formwork reinforcement. The pouring platform needs to be erected separately; 3. The platform collection needs to be hoisted out for processing, increasing the hoisting capacity of the tower crane; 4. The safety is low

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