Splicing node and construction method of steel pipe concrete column and reinforced concrete column
A technology for reinforced concrete columns and CFST columns, applied in the directions of columns, pillars, pier columns, etc., can solve the problems of difficult splicing of CFST columns and reinforced concrete columns, restricting the application of high-rise buildings, and lacking a more reliable splicing method. The effect of simple, firm splicing joints, and convenient construction
Active Publication Date: 2021-06-22
HUAQIAO UNIVERSITY
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Problems solved by technology
However, due to the difficulty of splicing steel pipe concrete columns and reinforced concrete columns, there is no reliable splicing method at present, which restricts its application in high-rise buildings
Method used
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Embodiment
[0034] This embodiment provides a splicing joint between a steel pipe concrete column and a reinforced concrete column, such as Figure 6 As shown, the splicing node includes a lower concrete-filled steel tube column 2 , an upper reinforced concrete column 3 and a splicing component 1 in the middle.
[0035] The splicing part 1 comprises a closed-loop channel steel. Such as Figure 1~3 As shown, the shape of the closed-loop channel steel is square and hollow, and the overall shape is back-shaped. It is formed by welding four pieces of channel steel 11 cut into trapezoidal shapes.
[0036] The upper and lower ends of the splicing part 1 are the surfaces of the flange plates 112 of the closed-loop channel steel, and the upper and lower flange plates 112 are provided with multiple sets of relative through holes 12, and the side surfaces of the splicing part 1 are the outer sides of the web 111 of the closed-loop channel steel.
[0037] Such as Figure 5 As shown, the steel pip...
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The invention discloses a splicing node and a construction method of a steel pipe concrete column and a reinforced concrete column, and relates to the technical field of building structures. The splicing joint of the present invention comprises a lower concrete-filled steel tube column, an upper reinforced concrete column and a splicing part in the middle; the splicing part connects the steel tube concrete column and the reinforced concrete column; the splicing part includes closed-loop channel steel; the upper and lower ends of the splicing part are closed-loop grooves On the surface of the steel flange plate, multiple through holes are opened on the upper and lower flange plates; the steel tube concrete column includes a hollow steel pipe; the steel pipe and the lower end surface of the splicing parts are welded together; The bottom passes through the through holes of the upper and lower flange plates in turn, and extends into the inner space of the steel pipe; the cross section of the steel pipe and the outer dimensions of the upper and lower ends of the splicing parts are the same. The spliced joint of the invention has a firm structure, can ensure the load transfer between the reinforced concrete column and the steel tube concrete column, and meanwhile, the joint has a simple structure and is convenient for construction.
Description
technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a splicing node of a steel pipe concrete column and a reinforced concrete column and a construction method. Background technique [0002] Concrete-filled steel tube column is a new type of high-efficiency composite member developed in recent years. It can give full play to the material properties of steel and concrete, and has the advantages of high bearing capacity and good seismic performance. Therefore, concrete-filled steel tube column has been widely used in high-rise buildings. more and more widely applied. However, with the increase of the height of the steel tube concrete column in the building, the vertical load on the structure gradually decreases, and it is no longer necessary to continue to use the steel tube concrete column. Therefore, after reaching a certain height, the steel tube concrete column can be replaced with a reinforced concrete c...
Claims
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IPC IPC(8): E04B1/30E04B1/58E04C3/34
CPCE04B1/185E04B1/30E04C3/34
Inventor 胡红松陈振新郭子雄
Owner HUAQIAO UNIVERSITY