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L-shaped concrete filled steel tube combined column

A technology of steel pipe concrete and composite columns, which is applied in the direction of columns, pillars, pier columns, etc., can solve the problems of weak concrete restraint capacity, complicated manufacturing and installation process, and weakened pipe wall integrity, so as to improve bearing capacity and seismic performance, simplify The effect of processing and manufacturing technology to reduce welding deformation

Active Publication Date: 2018-02-06
ZHEJIANG CONSTR ENG GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The width of special-shaped concrete-filled steel pipe composite columns is relatively small, generally not more than 200mm. The first special-shaped column is not suitable for pouring concrete due to its narrow cavity, and the manufacturing and installation process is complicated; Weak, its bearing capacity is low, and its seismic performance is poor; the third type of special-shaped column needs to open holes in the pipe wall due to the bolts piercing through it, which makes the processing and manufacturing complicated and weakens the integrity of the pipe wall, and the external convex bolts affect the building decoration.

Method used

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  • L-shaped concrete filled steel tube combined column
  • L-shaped concrete filled steel tube combined column
  • L-shaped concrete filled steel tube combined column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 , figure 2 The L-shaped concrete-filled steel pipe composite column is welded by the first U-shaped tube and the second U-shaped tube placed vertically to form a steel tube with an L-shaped inner cavity, and concrete 13 is poured into the L-shaped cavity to form an L-shaped Steel tube concrete composite column. The first U-shaped tube includes tube wall A1, tube wall B2, tube wall C3, and tube wall D4, and the second U-shaped tube includes tube wall E5, tube wall F6, and tube wall G7. Such as image 3 , Figure 4 As shown, the first U-shaped tube and the second U-shaped tube are formed by cold-bending steel plates, or the first U-shaped tube and the second U-shaped tube are formed by cold-bending and then welding or directly welding steel plates.

[0028] The pipe wall A1 is welded with the pipe wall G7 to form the outer corner of the steel pipe and the weld seam 10 between the pipe wall A1 and the pipe wall G7, and the pipe wall E5 and the pipe wa...

Embodiment 2

[0032] This embodiment is further optimized on the basis of the above embodiments, in order to better realize the present invention, as figure 2 , 6 As shown, the following structure is specially arranged: the connecting member 8 is a plurality of angle steels arranged at vertical intervals, the angle steels are parallel to the pipe wall D and placed on the side close to the first U-shaped pipe, and one end of the angle steels is welded to the pipe wall D4 , the other end is welded to the pipe wall A1 to form the weld 11 between the connecting member and the pipe wall D4 and the weld 12 between the connecting member and the pipe wall A1 respectively, and the distance between the weld 12 between the connecting member and the pipe wall A1 is The length of the weld 10 between A1 and the pipe wall G7 is about 20mm.

Embodiment 3

[0034] This embodiment is further optimized on the basis of the above embodiments, in order to better realize the present invention, as figure 2 , 7 As shown, the following structure is specially arranged: the connecting member 8 is a steel bar extending vertically and continuously bent, the steel bar is parallel to the pipe wall D4 and placed on the side close to the first U-shaped pipe, and one end of the steel bar is welded to the pipe wall D4 , the other end is welded to the pipe wall A1 to form the weld 11 between the connecting member and the pipe wall D4 and the weld 12 between the connecting member and the pipe wall A1 respectively, and the distance between the weld 12 between the connecting member and the pipe wall A1 is The length of the weld 10 between A1 and the pipe wall G7 is about 20mm.

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Abstract

The invention discloses an L-shaped concrete filled steel tube combined column which is composed of a steel tube and concrete, wherein the steel tube is provided with an L-shaped hollow chamber; the hollow chamber is filled with the concrete; a connecting component is arranged between inner and outer corners of the L-shaped steel tube; the L-shaped hollow chamber is divided into two concrete pouring areas which are relatively independent from each other and are connected with each other along an inclined direction by the connecting component. The connecting component is arranged in the steel tube and the restraining for the pipe wall at an indent corner of the steel tube is enhanced, so that the bearing capability and the anti-seismic property of the combined column are promoted, or compared with the combined column with multiple chambers in the prior art, the column has the advantage that the quantity of the steel tube chamber is reduced so that the steel tube can be conveniently manufactured and mounted and the concrete can be conveniently poured. Compared with the prior art, the column has the advantages that the structure is simple, the manufacturing and mounting are convenient, the concrete pouring is convenient, the bearing capability is higher and the anti-seismic property is excellent.

Description

technical field [0001] The invention relates to an L-shaped steel pipe concrete composite column, which belongs to the field of engineering construction. Background technique [0002] With the promotion of building industrialization, the application of prefabricated steel structures in residential buildings is gradually increasing. Special-shaped steel pipe concrete composite columns are used. The width of the column limbs is basically equal to the thickness of the filling wall, which can avoid the protrusion of the indoor column and increase the actual use of the room. At the same time, the layout of special-shaped concrete-filled steel tube composite columns is flexible and economical, which meets the requirements of the country's construction of a conservation-oriented society. The special-shaped steel pipe concrete composite column frame can also form a frame-support or frame-shear wall system with support or shear walls, so it has broad application prospects. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/32E04C3/34
CPCE04C3/32E04C3/34
Inventor 楼东浩黄江余振华肖锋叶军金睿
Owner ZHEJIANG CONSTR ENG GRP CO LTD