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Method for underpinning steel reinforced concrete frame column through double columns by adopting reverse construction method

A steel-reinforced concrete and steel-filled concrete column technology, which is applied in construction and building structures, can solve problems such as low safety, unclear force transmission, and poor stability

Active Publication Date: 2020-12-18
SHANGHAI CONSTR NO 1 GRP
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Problems solved by technology

[0004] The present invention aims at inventing a method of double-column underpinning steel-reinforced concrete frame columns in the reverse method, which solves the problems of poor stability, low safety, and unclear force transmission of the offset butt joint between two steel-filled steel-reinforced concrete frame columns and steel-reinforced concrete frame columns

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  • Method for underpinning steel reinforced concrete frame column through double columns by adopting reverse construction method
  • Method for underpinning steel reinforced concrete frame column through double columns by adopting reverse construction method
  • Method for underpinning steel reinforced concrete frame column through double columns by adopting reverse construction method

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. The technical content and features of the present invention will be described in detail below by referring to the illustrated embodiments in conjunction with the accompanying drawings. It should be further noted that all the drawings are in very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. For the convenience of description, the "up" and "down" described below are consistent with the directions of up and down in the drawings, but this should not be a limitation of the technical solution of the present invention.

[0030] see Figure 1 to Figure 4 , the present embodiment provides a double-column underpinning method for steel-reinforced concrete frame columns. The lower part of the steel-reinforced concrete frame column ...

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Abstract

The invention provides a method for underpinning a steel reinforced concrete frame column through double columns by adopting a reverse construction method. The method comprises the following steps of:measuring two constructed steel pipe concrete columns through positioning; reserving or digging post-cast strip spaces in steel pipes of the two steel pipe concrete columns respectively; processing corresponding deviation correction devices according to the deviation condition of the steel reinforced concrete frame column; mounting the deviation correction devices on the corresponding steel pipeconcrete columns; pouring concrete into the spaces in circular steel pipes of the deviation correction devices and the post-cast strip spaces of the corresponding steel pipe concrete columns; and hoisting the steel reinforced concrete frame column, so that two connecting steel columns of the steel reinforced concrete frame column are mounted on the corresponding deviation correction devices respectively, the axes of the connecting steel columns are coaxial with the axes of the circular steel pipes in the corresponding deviation correction devices, and the deviation correction devices are fixedwith the corresponding connecting steel columns. The method solves the problems of poor deviation butt joint stability, low safety and unclear force transfer from the two steel pipe concrete columnsto the steel reinforced concrete frame column.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a double-column underpinning method for steel-reinforced concrete frame columns. Background technique [0002] At present, when the concrete-filled steel tube columns in the reverse basement are constructed to the upper structure, they usually need to be converted into steel-reinforced concrete frame columns, that is, double-cross conversion steel columns. If the upper load is large, it may be necessary to use two steel-reinforced concrete frame columns to jointly bear the load of the upper single steel-reinforced concrete frame column. butt. [0003] Therefore, how to provide a double-column underpinning method for steel-reinforced concrete columns, which can complete the offset and stable butt joint between two steel-filled concrete columns and steel-reinforced concrete frame columns, has become a technical problem that needs to be further improved an...

Claims

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Application Information

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IPC IPC(8): E04B1/35
CPCE04B1/35
Inventor 刘坚业绪盼鲍仕涛刘志豪刘畅
Owner SHANGHAI CONSTR NO 1 GRP
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