A construction method of circular reinforced concrete chimney wall inverted formwork

Abstract

The invention relates to a reversed mould construction method for the circular reinforced concrete chimney wall. The method comprises the steps that a pre-embedded part is embedded; a scaffold is erected at the central position of the chimney wall, steel ring raw materials for connecting primary trusses and a secondary radiation beam are transported into the chimney, and steel rings are assembled on the ground; a central drum ring is installed; a cross-core jack is installed on a climbing rod, the cross-core jack is installed in a released state, and the cross-core jack is adjusted to the corresponding elevation; the primary trusses, the secondary radiation beam and forward-spin connecting rods of the primary trusses are installed, the assembled steel rings are lifted to the bottom of the secondary radiation beam, and the junctions of the secondary radiation beam and downward-spin rods of the primary trusses are connected through a stud and a clamp plate; a foot plank of an operation platform is paved; the normal operation of a chimney cylinder body is conducted. According to the reversed mould construction method for the circular reinforced concrete chimney wall, two formworks are adopted, and a layer of template is omitted compared with a normal condition; the labor intensity of the construction of a hydraulic reversed mould device is moderate, the lifting work of a railway mould is omitted, the labor intensity is reduced, the construction progress is obviously quickened through the dynamic and continuous operation, and the construction period is shortened obviously.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an inverted mold construction method for a circular reinforced concrete chimney wall. Background technique [0002] The construction methods of the circular reinforced concrete chimney wall generally include the inverted form construction method and the slip form construction method. The chimney wall after the slip form construction has the advantages of smooth appearance, no stubble, and no surface treatment, but the construction equipment cost The high defect is also quite obvious; in contrast, although there are more obvious seams in the chimney after inverted molding construction, this method has the advantage of low construction cost. In the process, under the premise of fully paying attention to the joint construction, the inverted mold construction method should be adopted as much as possible. [0003] In the prior art, the lifting rod used to bear the main ...

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Problems solved by technology

[0002] The construction methods of the circular reinforced concrete chimney wall generally include the inverted form construction method and the slip form construction method. The chimney wall after the slip form construction has the advantages of smooth appearance, no stubble, and no surface treatment, but the construction equipment cost The high defect is also quite obvious; in contrast, although there are more obvious seams in the chimney after inverted molding construction, this method has the advantage of low construction cost. In the premise of fully paying attention to the joint construction, try to use the inverted mold construction method

[0003] In the prior art, the lifting rod used to bear the main load of the platform in the inverted formwork construction of the chimney (that is, the climbing rod mentioned below) will be filled with concrete and fixed in the chimney wall, thereby increasing the cost of the chimney

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