Butt-joint installation method for rectangular steel stand columns through first beam and second column lifting in narrow space

Abstract

The invention discloses a narrow space beam-column-first lifting rectangular steel stand column butt joint installation method which comprises the following construction steps that S1, a steel column is divided into a first section of column body, a second section of column body and a third section of column body, the third section of column body is installed on a lower layer platform, a hydraulic lifter and a control assembly are arranged on an upper layer platform, and the first section of column body and the second section of column body are in butt joint; a communicating hole is formed in the upper-layer platform; s2, stiffening plates are fixed to the upper ends of the first column body section and the second column body section, positioning openings are formed in the stiffening plates, and operation openings are formed in the outer side walls of the first column body section and the second column body section; s3, a hydraulic lifter is started, and the first section of column body is lifted to the position below the communicating hole and fixed; s4, the hydraulic lifter is started to lift the second section of the column body, the second section of the column body is fixedly connected with the third section of the column body, and a connecting section is reserved between the first section of the column body and the second section of the column body; and S5, connecting sections are installed and welded. The steel stand column has the effects that constructors can conveniently and vertically install the steel stand column, and the project progress is accelerated.

Description

technical field [0001] The present application relates to the field of butt joint installation of steel columns, in particular to a method for butt joint installation of rectangular steel columns in a narrow space where beams are lifted first and then columns are lifted. Background technique [0002] When construction personnel build subway stations, construction personnel often use steel columns as the support of the platform. The general construction steps are to use large-scale hoisting equipment such as cranes to hoist the steel columns to the upper surface of the existing platform, and then the operators vertically set the steel columns. The bottom of the column is fixedly installed with the existing platform, and then the operator pours the upper platform on the upper surface of the steel column. [0003] In view of the related technologies mentioned above, the inventor believes that when the planned subway station meets the completed subway station, the construction p...

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Problems solved by technology

[0003] In view of the related technologies mentioned above, the inventor believes that when the planned subway station meets the completed subway station, the construction personnel need to carry out the improvement project on the subway station without affecting the existing traffic flow. In the improvement project, it is often necessary to use steel columns to strengthen For the support of the upper platform, due to the limitation of the internal height of the completed building, it is difficult for the construction personnel to use large hoisting devices such as cranes to vertically arrange the steel columns on the lower platform, and the manual construction of the construction personnel will easily slow down the progress of the project

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