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Construction method and structure for transforming and reinforcing reinforced concrete column

A technology for reinforced concrete columns and construction methods, which is applied in building construction, building maintenance, construction, etc., can solve problems such as hidden dangers, frame columns and beams and slabs affecting construction difficulty, and achieve the effect of improving integrity and improving stability.

Pending Publication Date: 2019-05-21
SHANGHAI NO 7 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the method of adding pile foundations to meet the foundation load is adopted, it will have a great impact on the existing foundations, frame columns and beams and slabs that have been completed, and the construction will be extremely difficult, which will cause many hidden dangers to a large extent in the later stage

Method used

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  • Construction method and structure for transforming and reinforcing reinforced concrete column
  • Construction method and structure for transforming and reinforcing reinforced concrete column
  • Construction method and structure for transforming and reinforcing reinforced concrete column

Examples

Experimental program
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Embodiment 1

[0030] The present invention provides a construction method for the reconstruction and reinforcement of reinforced concrete columns. Figure 1 to Figure 6 As shown, the construction method is further described. The construction method mainly reinforces the cross-section of the original reinforced concrete column 10, and adds a steel pipe column 30 on the top of the original reinforced concrete column 10. The construction method specifically includes:

[0031] Step 1: Such as figure 1 As shown, the top concrete of the original reinforced concrete column 10 is removed to the design elevation of the column top, and the top longitudinal reinforcement 11 of the original reinforced concrete column 10 is cut or extended to the design height. figure 1 The area marked by the dotted line, that is, part of the concrete 12 is removed. When the concrete at the top of the original reinforced concrete column 10 is removed to the design elevation, and the length of the exposed longitudinal reinfo...

Embodiment 2

[0039] The invention provides a reinforced concrete column reconstruction and reinforcement structure, which is combined with Figure 1 to Figure 6 The reinforced concrete column reconstruction and reinforcement structure is further described. in Figure 1 to Figure 6 In the above, the bottom of the original reinforced concrete column 10 is provided with a foundation slab 1 and a column pier 2 located below the foundation slab 1. This is only an application of the technical solution and should not be interpreted as a limitation of the technical solution.

[0040] Such as Image 6 As shown, the reinforced concrete column reconstruction and reinforcement structure includes an original reinforced concrete column 10, a steel tube column 30, and a cast-in-place structure 20; the steel tube column 30 is located above the original reinforced concrete column 10, and the cast-in-place structure 20 is used to realize the original reinforced concrete The column 10 and the steel pipe column 30...

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PUM

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Abstract

The invention discloses a construction method and structure for transforming and reinforcing a reinforced concrete column, and belongs to the technical field of structural column transformation. According to the construction method, an original reinforced concrete column is effectively reinforced through steel bar longitudinal embedding and a grouting reinforcing section of a cast-in-place structure, the cast-in-place structure is fixedly connected with a bottom plate of a steel pipe column through embedded bolts of a cast-in-place connecting section of the cast-in-place structure, the bottomof the steel pipe column, a column bottom plate and the embedded bolts are wrapped through a cast-in-place wrapping section of the cast-in-place structure, and the stability of a splicing face is improved. Meanwhile, the steel bar longitudinal embedding penetrates through the grouting reinforcing section, the cast-in-place connecting section and the cast-in-place wrapping section of the cast-in-place structure, so that the cast-in-place structure is of an integral structure, the cast-in-place structure plays a role in reinforcing original reinforced concrete, and the splicing and fixing effects of the original reinforced concrete and the steel pipe column are improved. In addition, column core steel bars and column core concrete are arranged in the steel pipe column, the bottoms of the column core steel bars are inserted into the cast-in-place connecting section, and the integrity of the steel pipe column and the cast-in-place connecting section is further improved.

Description

Technical field [0001] The invention relates to a construction method and structure for the reconstruction and reinforcement of reinforced concrete columns, belonging to the technical field of structural column reconstruction. Background technique [0002] With the continuous deepening of modernization, more and more projects are undergoing continuation and reconstruction. Continued construction and reconstruction often involve the reinforcement of the main structure and the adjustment of the functional layout. It is likely to involve an increase in the height of the building, an increase in the number of floors, and a corresponding increase in the load. If the method of adding pile foundation to meet the foundation load is adopted, it will have a greater impact on the existing foundation, frame column and beam slab, and the construction will be extremely difficult, which will cause many hidden dangers to a large extent in the later stage. Therefore, it is necessary to renovate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
Inventor 杜星秦立标王勇袁斌刘井远倪禹李明通
Owner SHANGHAI NO 7 CONSTR