Raking prop structure used for natural draft cooling tower and construction method thereof

Abstract

The invention discloses a raking prop structure used for a natural draft cooling tower and a construction method of the raking prop structure. The raking prop structure includes a raking prop structure body which is formed by mutually connecting a plurality of prop house racks to be in an annular structure. The prop house racks are in a steel tube-concrete combination structure composed of steel tubes and concrete with which the steel tubes are filled. The prop house racks comprise ring beams, pier columns and props, wherein the ring beams are connected with the top ends of the props, and bottom ends of the props are connected with the pier columns; the props are X-type props or V-type props. The construction method comprises the steps that concrete in raking props and concrete in the ring beams of the steel tube-concrete combination structure are injected from the bottom, one-off or staged lift-up method pouring is adopted, and the segmented ring beams are assembled through welding to form an integrated ring beam. The raking prop structure has the advantages that the cross-sectional dimension of each raking prop is small, the structural ductility is good, the construction speed is high, service life is long, the construction cost of the whole tower is low, post-maintenance is easy, and the maintenance cost is low.

Description

technical field [0001] The invention belongs to the technical field of industrial natural ventilation cooling towers, and in particular relates to an oblique pillar structure for a natural ventilation cooling tower and a construction method thereof. Background technique [0002] Most of the large natural draft cooling towers use reinforced concrete structures, and a few use steel structures. Due to the limitation of construction level and construction equipment, most of the inclined pillars of the natural ventilation cooling tower adopt reinforced concrete cast-in-place structure, and a few adopt reinforced concrete prefabricated structure. Among them, the cast-in-place reinforced concrete slanted pillar is a structural system widely used in large-scale natural ventilation cooling towers that have been built or are under construction in my country because of its good integrity and low requirements for construction lifting equipment. [0003] For natural ventilation cooling ...

AI Technical Summary

Problems solved by technology

[0003] For natural ventilation cooling towers, especially high-level water collection cooling towers and indirect air-cooling cooling towers, because the height of the air inlet is generally high, the traditional reinforced concrete slanted pillars often need to be constructed in sections, and the slanted pillar construction formwork and scaffolding support system is also required. More and more complex, high construction cost, long construction period, more and more unsuitable for shortening construction period and reducing project cost

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