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Integrated chimney and cooling tower structure system of diagonal cable net and construction method thereof

A technology of cable-stayed cable towers and cable nets, which is applied in the structural system field of chimney-air-cooling towers in thermal power plants, can solve the problems of large amount of concrete air-cooling tower materials, a large number of aerial operations, and high safety risks, and shorten the construction time Period, save land, improve the effect of economic benefits

Active Publication Date: 2021-01-15
CHINA AVIATION PLANNING & DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a smoke-tower-integrated structural system with oblique cable nets and its construction method, aiming to solve the technical problems of the prior art that the construction of hollow cooling towers requires a lot of aerial work, high construction costs, and high safety risks , and the technical problems of large amount of concrete air cooling tower materials and cumbersome construction

Method used

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  • Integrated chimney and cooling tower structure system of diagonal cable net and construction method thereof
  • Integrated chimney and cooling tower structure system of diagonal cable net and construction method thereof
  • Integrated chimney and cooling tower structure system of diagonal cable net and construction method thereof

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Embodiment 1

[0056] The diameter at zero meter at the bottom of the air-cooling tower (pillar center) is 138.5m, the outlet diameter of the air-cooling tower is 90m, the diameter of the air inlet of the air-cooling tower is 121.6m, the throat diameter of the pit cooling tower is 86m, and the height is 148.5m. The height of the pit cooling tower is 198m. The height of the air inlet of the tower is 30.5m; the diameter of the bottom of the chimney 1 is 20m, the diameter of the top is 10m, the wall thickness is 3m to 5m, and the height of the chimney 1 is 248m. The tension support is provided by the chimney 1, and the single-layer straight cable is used as the busbar to cross-tension obliquely between the upper and lower ring beams to form a single-layer hyperboloid, and the membrane material is laid on the inside or outside of the cable net. The specific construction method is as follows:

[0057] (1) First, the structural construction of the chimney 1 is carried out. The chimney 1 is a cast-...

Embodiment 2

[0065] The diameter at zero meter at the bottom of the air cooling tower is 138.5m, the diameter of the air cooling tower outlet is 90m, the diameter of the air inlet of the air cooling tower is 121.6m, the diameter of the throat of the pit cooling tower is 86m, the height is 148.5m, the height of the air cooling tower is 198m, and the height of the air inlet of the air cooling tower is 30.5m m; chimney 1 has a bottom diameter of 20m, a top diameter of 10m, a wall thickness of 3m to 5m, and a height of chimney 1 of 248m. The tension support is provided by the chimney 1, and two layers of straight cables are used as the generatrix to cross-tension obliquely between the upper and lower ring beams to form a double-layer hyperboloid, and the membrane is laid on the inside or outside of the cable net. The specific construction method is as follows:

[0066] (1) Firstly, the structural construction of the chimney 1 is carried out. The chimney 1 is a cast-in-place concrete structure...

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Abstract

The invention relates to an integrated chimney and cooling tower structure system of a diagonal cable net and a construction method thereof. According to the system, a chimney and an air cooling towerare combined, the chimney adopts a reinforced concrete structure and is built in the center of the air cooling tower, the air cooling tower adopts a tension structure, and a structure membrane material is laid on the outer side; ground assembly is adopted in construction, then the chimney is hoisted to a certain height, and the chimney is fixed to a concrete chimney through stay cables; and the lower portion of a hyperbolic structure cable is tensioned until the structure reaches a certain rigidity, and an inhaul cable is arranged in the middle of the chimney to be anchored to a foundation inorder to enable the chimney to keep certain compression stability. According to the system, the chimney is combined with the air cooling tower, so that the possibility of building the air cooling tower by using a flexible material is realized, and the air cooling tower can be spliced and tensioned on site; a hoisting mode after ground assembly is adopted, so that high-altitude operation is effectively reduced; chimney construction land can be effectively saved, the using amount of concrete is reduced, and on-site wet operation is reduced; and the structural membrane material is light in selfweight and can achieve a higher height, and the chimney provides lateral support for the cable net and can resist a larger wind suction load.

Description

technical field [0001] The invention relates to a chimney-air cooling tower integrated structural system of a thermal power plant, in particular to a chimney tower integrated structural system of an oblique cable net and a construction method thereof. Background technique [0002] Due to the increasing shortage of construction land for power plant projects, the integration of chimneys and air cooling towers can reduce the construction project land. At present, most of the structures of indirect air cooling towers are reinforced concrete structures, and a few indirect air cooling towers are in the form of steel structures. The design methods and construction technologies are relatively mature, but they all need to be operated at high altitudes. The construction period is long, the amount of concrete is large, and the environment is polluted. Seriously, it is impossible to realize prefabricated construction. [0003] With the expansion of the scale and the improvement of the ...

Claims

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Application Information

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IPC IPC(8): E04H12/00E04H12/02E04H12/08E04H12/12E04H12/28E04H5/12E04H14/00E04B1/32
CPCE04H12/00E04H12/02E04H12/08E04H12/12E04H12/28E04H5/12E04H14/00E04B1/3211E04B2001/3235
Inventor 张国军
Owner CHINA AVIATION PLANNING & DESIGN INST GRP
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