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Sectional hoisting method of self-supporting steel chimney upside-down mounting assembling method

A segmented hoisting, self-supporting technology, applied in building types, buildings, towers, etc., can solve the problems of self-supporting steel chimneys, such as large limitations, long mechanical occupation time, and reduced stability, and achieves fast assembly speed and occupation. The effect of less space and shorter occupation time

Pending Publication Date: 2018-09-28
MCC TIANGONG GROUP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, large-scale machinery is hoisted in sections, which takes a long time and costs high
Although the traditional lifting method can meet the relatively narrow site construction, but as the height of the lifting structure increases, the height of the bracket used for lifting also increases, and the stability of the lifting tool decreases with the increase in height, which poses a greater safety hazard
The traditional method of installing a tall self-supporting steel chimney has limitations

Method used

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  • Sectional hoisting method of self-supporting steel chimney upside-down mounting assembling method
  • Sectional hoisting method of self-supporting steel chimney upside-down mounting assembling method
  • Sectional hoisting method of self-supporting steel chimney upside-down mounting assembling method

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Embodiment Construction

[0026] A self-supporting steel chimney inverted assembly method for segmental hoisting, comprising the following steps:

[0027] 1. On a circular foundation (such as Figure 8 ) to install the chimney base 1 at the design position (such as figure 1 shown), and a plurality of steel corbels 8 are evenly welded along the circumference of the base, and a steel column 5 is welded on each steel corbel, and a plurality of steel columns form a circular array of steel columns;

[0028] 2. After installing all the steel columns 5, weld the inter-column support frame 4 firmly to each steel column, weld the lifting lugs on the outside of the top of each steel column 5, and firmly fix the chain block 3 on the lifting lugs; ( Such as figure 2 shown)

[0029] 3. Wrap the segmented ring beam 2 around the outside of the ring array of steel columns and weld it into a whole. Weld the lifting lugs on the upper surface of the ring beam 2 and the corresponding position of the chain hoist 3. Th...

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Abstract

According to the invention, a self-supporting steel chimney is segmented reasonably and each segment is divided into multiple annular closed cylinder unit; according to the chimney section, a plurality of chimney internal lifting devices are arranged correspondingly, and the segments of the chimney are assembled synchronously; the lowermost section is assembled directly on the chimney base, and the remaining assembled sections are hoisted into place by the hoisting machinery, and the self-supporting steel chimney installation is completed after the segments are welded firmly successively. Theinvention utilizes the chimney internal lifting devices to occupy less space and the assembling is fast and has high precision, saves cost compared with the traditional mechanical lifting, and saves steel compared with the traditional lifting method. The basic unit assembled on site is suitable for transportation and transportation in small construction sites. The occupation time of large cranes is greatly shortened. This method is suitable for self-supporting steel chimney construction with small construction site and large chimney height.

Description

technical field [0001] The invention belongs to the technical field of installation of a self-supporting steel chimney, and relates to a method for assembling and segmentally hoisting a self-supporting steel chimney by an inversion method. Background technique [0002] At present, the methods usually used for self-supporting steel chimneys include large-scale mechanical segmental hoisting method, lifting method, etc. Among them, large-scale machinery is hoisted in sections, which takes a long time and costs a lot. Although the traditional lifting method can meet the relatively narrow site construction, but as the height of the lifting structure increases, the height of the bracket used for lifting also increases, and the stability of the lifting tool decreases with the increase in height, which poses a greater safety hazard . The traditional method of installing a tall self-supporting steel chimney has limitations. Contents of the invention [0003] The object of the pr...

Claims

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Application Information

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IPC IPC(8): E04H12/34
CPCE04H12/34
Inventor 苏浩伟兰小龙刘法新
Owner MCC TIANGONG GROUP
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