Fabrication method of vertical deformation control structure of post-added structural column

Abstract

The invention discloses a manufacturing method of a vertical deformation control structure of an additionally-arranged structure column. By the adoption of the manufacturing method of the vertical deformation control structure of the additionally-arranged structure column, the problem that in the prior art, certain compression difference deformation can be caused in the underpinning and later-stage use processes of an additionally-arranged structure column in an added-storey basement can be effectively solved. The manufacturing method of the vertical deformation control structure of the additionally-arranged structure column sequentially comprises the following steps that A, an added-storey basement base plate of an added-storey basement is poured, and a welded supporting base plate is embedded in the upper surface of the added-storey basement base plate; B, an intra-column section steel column is placed between the welded supporting base plate and the vertical structure column, and a section steel column lower supporting plate is arranged on the lower portion of the intra-column section steel column; C, an ejecting device is placed between the section steel column lower supporting plate and the welded supporting base plate, and then the intra-column section steel column is jacked up through the ejecting device; D, the lower end of the intra-column section steel column is connected with the welded supporting base plate; and E, the ejecting device is dismounted and then taken out.

Description

technical field [0001] The invention relates to the field of underground building construction, in particular to a method for manufacturing a structure for controlling vertical difference deformation of post-added structural columns. Background technique [0002] With the continuous development of the urbanization process, the contradictions and problems of urban land resources and space development have become increasingly prominent, the use of underground space has continued to be three-dimensional, and urban construction has shown a development trend of aboveground-underground surface-deep underground. Rational development and utilization of the space below the basement of existing urban buildings is one of the effective ways to solve the contradiction between urban land resources and space development. During the construction of the basement extension, after excavating the earthwork to the design base elevation and constructing the new foundation cap and floor, it is nec...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a method that can effectively solve the problem that the post-incremented structural columns in the basement will produce certain compression differential deformation during the underpinning process and later use, resulting in Differential deformation between column and column, between column and shear wall, and cause different degrees of additional internal force and deformation in the existing superstructure, which will have adverse effects on the superstructure. Vertical deformation control of post-added structural columns Structure making method

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