Inversing method of inner side clustering hoop of vertical storage tank

Abstract

The invention discloses an inversing method of an inner side clustering hoop of a vertical storage tank. The reversing method comprises the steps of: lifting a tensioning packing temporarily fixed at the lower part of a wall board by using holding poles with hoisting inverted chains to ensure that a precast tank top and a first ring of wall board to ascend to a preset height together with the tensioning packing, installing and welding a second ring of wall board, wherein the holding poles are uniformly arranged on the inner side of the storage tank; and then releasing the tensioning packing to descend to the lower part of the second ring of wall board for tensioning and fixing, lifting the second ring of wall board by using the hosting inverted chains on the inner-side clustering hoop until the final ring of wall board is installed and welded. All construction tools used in the invention can be repeatedly used during the construction of the storage tanks with various specifications except for the tensioning ring, semi-finished product materials are sent to the near side of an equipment foundation by needing a small crane by adopting an inner-side clustering inversing method, residual works are completed by using a crane jib on the top of the storage tank, the holding poles and the inverted chains. Compared with the prior art, the inversing method has the advantages of saving a large quantity of automobile machine teams, and greatly reducing cot; and meanwhile, the more the quantity of the storage tanks is, the larger the saved cost is.

Description

technical field [0001] The invention relates to a ground engineering vertical storage tank pairing construction technology, in particular to a vertical storage tank inner side group holding upside down method. Background technique [0002] With the continuous development of the national economy, the demand for vertical storage tanks in petrochemical and public utility projects continues to increase. Vertical storage tanks generally adopt the water-floating positive installation method, central column method, and air-lift method for on-site construction. However, in the application process, there are usually problems such as limited by the site, poor safety, slow construction speed, high cost, and small scope of application. It is very difficult to carry out the construction of the vertical storage tank group by using the above-mentioned method from the analysis of various factors. Contents of the invention [0003] Aiming at the deficiencies of the existing technology, th...

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Problems solved by technology

Vertical storage tanks generally adopt the water-floating positive installation method, central column method, and air-lift method for on-site construction. However, in the application process, there are usually problems such as limited by the site, poor safety, slow construction speed, high cost, and small scope of application. It is very difficult to use the above method to carry out vertical storage tank group construction from various factors.

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