CN211114424U

CN211114424U - Novel hoop reinforced square concrete-filled steel tube combined special-shaped beam column

Info

Publication number: CN211114424U
Application number: CN201822064959.8U
Authority: CN
Inventors: 周学军; 王振; 杨融谦; 赫连光泽; 许国栋; 张艺凡; 鞠霄; 李泉
Original assignee: Shandong Jianzhu University
Current assignee: Shandong Jianzhu University
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2020-07-28
Anticipated expiration: 2028-12-10

Abstract

This real application belongs to the civil engineering field, specifically is a special-shaped restraint post of square steel tube concrete combination is strengthened to novel cuff, special-shaped restraint post includes more than one square steel pipe, the restraint post outside is equipped with the cuff of the square steel pipe of fastening, fill the concrete in the square steel pipe, the height of restraint post is 2.7-3.3 times high for the floor layer, connects through the groove weld between the upper and lower restraint post.

Description

Novel hoop reinforced square concrete-filled steel tube combined special-shaped beam column

Technical Field

This real application belongs to civil engineering field, specifically is a novel square steel pipe concrete combination abnormal shape restraint post is strengthened to cuff.

Background

Steel and concrete composite structures have been widely used in civil engineering structures, particularly high-rise building structures, because they can sufficiently exert the properties of both steel and concrete materials. The steel tube and the concrete of the steel tube concrete interact in the stress process, and the advantages of the two materials are fully exerted. The steel pipe generates a constraint effect on the transverse deformation of the core concrete under the action of the axial pressure, so that the core concrete is in a three-dimensional compressive stress state, the compressive strength of the core concrete is improved, and the compressive performance of the concrete is improved; because the steel pipe is filled with concrete, the lateral rigidity of the steel pipe wall is greatly improved, the buckling of the steel pipe is avoided and delayed, and the exertion of the stress performance of the steel pipe material is ensured. In the construction process of the steel pipe concrete, the steel pipe can also be used as a template for pouring core concrete of the steel pipe concrete, and compared with reinforced concrete, the cost of the template can be saved, and the construction speed is accelerated. Therefore, the steel tube concrete has the advantages of high bearing capacity, good plasticity and toughness, good economic effect, convenient construction and the like. The concrete filled steel tube is divided into a round steel tube, a square steel tube, a rectangular steel tube and a polygonal steel tube according to different cross-sectional forms of the steel tube.

Since the 21 st century, the national economy of China has been rapidly developed, the pace of urban modern construction is gradually accelerated, and particularly, in recent years, with the demand of people for houses greatly increased, the requirements on living conditions are higher and higher, so that the construction industry of China becomes the post industry of the national economy. The rapid development of the industry urgently requires the improvement of the technical, hierarchical, comfortable and aesthetic properties of the residential industry, and the modernization of the residential industry is comprehensively promoted on the basis of low pollution, low consumption, low manpower, high efficiency, high quality and high mechanization.

Therefore, the assembly type building is used as a green engine for new and old kinetic energy conversion in the building industry, the popularization and the application of the assembly type building are supported by the great force of the country, the incentive measures and the guarantee policies of the assembly type building are provided in 31 provinces, cities and autonomous regions in the country, and clear requirements are provided for the development of the assembly type building in many places. The fabricated steel structure building is an important development direction of the fabricated building due to the advantages of flexible spatial arrangement, high integration degree, light dead weight, excellent earthquake resistance, environmental friendliness, energy conservation, short construction period, high product quality, good comprehensive economic benefit and the like. The assembled steel structure house is an important branch of the assembled steel structure house, but in the traditional assembled steel structure house, as the columns are mostly provided with regular sections (such as rectangles, H-shaped and the like), the columns often protrude out of the wall surface, not only occupy certain indoor space, but also are not beneficial to the placement of furniture articles and influence the use, and the assembled steel structure house becomes a large toggle for popularization and application. Therefore, finding a residential structure form with an assembled steel structure, which can not only exert the advantages of the assembled building, but also meet the indoor functional requirements of the building, becomes one of the hot spots of the research of the engineering and academic circles.

Disclosure of Invention

In order to solve the technical problem, the application provides a novel hoop reinforced square concrete-filled steel tube combined special-shaped beam column, which is realized by the following scheme:

the utility model provides a novel square steel pipe concrete combination profile beam post is strengthened to cuff, profile beam post includes more than one square steel pipe, the outside cuff that is equipped with the square steel pipe of fastening of beam post, square steel pipe intussuseption is filled with the concrete, the height of beam post is 2.7-3.3 times of floor layer height, connects through groove weld between the upper and lower beam post.

Preferably, the transverse section of the special-shaped beam column consisting of the three square steel pipes is L type, T type, Z type or cross type.

Preferably, the ferrule is welded to the beam.

Preferably, the upper and lower edges of the ferrule are connected with a beam fillet weld.

Preferably, the square steel pipe is a chamfered square steel pipe.

Preferably, the chamfer square steel pipe is welded with the chamfer square steel pipe.

The hoop reinforced square concrete-filled steel tube beam column has the following characteristics:

(1) the finished square steel pipe can be directly purchased from a manufacturer, the construction difficulty caused by welding of the traditional thick steel pipe is overcome, the special-shaped beam column is restrained by the hoop, the welding line is constructed for positioning, the welding workload is greatly reduced, the welding residual stress and the welding residual deformation are reduced, the requirement of the assembled steel structure building on the construction precision is more easily met, and the advantages of the assembled building are conveniently exerted;

(2) compared with the common rectangular-section steel pipe concrete column, the square steel pipe concrete column effectively improves the constraint effect on core concrete, is more favorable for fully exerting the performance advantages of two materials, and overcomes the stress concentration of the internal corner part of the common steel pipe concrete special-shaped column and improves the bearing capacity of the column due to the special-shaped section formed by combining the square steel pipe concrete column;

(3) the hoop can enhance the combination effect between each steel pipe concrete column, ensure the cooperative stress of the steel pipe concrete columns, play a certain role in limiting the local buckling of the steel pipe of the other side, can be used as a connecting piece of a special-shaped frame column and a steel beam, is convenient for node construction, and can achieve three purposes at one stroke.

The method can be used in the assembled steel structure residential buildings, solves the problem of column leakage of steel structure residential buildings, and promotes the application of the steel structure system in engineering, thereby accelerating the pace of urban modern construction. A

The steel pipe that this application adopted can guarantee the constraint effect to the core concrete for square steel pipe, can exert characteristics such as steel construction plastic deformation ability reinforce, ductility is good, anti-seismic performance is good again, has still overcome circular steel tube concrete structure because the special design that brings of cross sectional shape, construction and the inconvenience in the use, has that bending rigidity is big, nodal connection is convenient advantage. Therefore, the square steel pipe concrete structure has good application prospect in high-rise and super high-rise buildings, and is generally regarded by the fields of domestic and foreign engineering.

Drawings

FIG. 1 is a schematic view of a common steel structure house "leakage column";

FIG. 2 is a schematic structural view of a single square steel pipe column;

FIG. 3 is a schematic view of the location of L-shaped column welds of a square concrete-filled steel tube combination;

FIG. 4 shows a square concrete-filled steel tube composite beam column (a) with L-shaped section, (b) with T-shaped section, and (c) with cross-shaped section

FIG. 5 is a schematic view of an L-shaped ferrule;

FIG. 6 is a schematic view of a hoop reinforced square concrete-filled steel tube composite profiled beam (L-shaped);

FIG. 7 is a schematic structural view of groove welding;

in the figure, 1-outer wall, 2-H section steel column, 3-column leakage phenomenon, 4-fireproof plate, 5-groove weld, 6-square steel pipe, 7-concrete, 8-L beam column, 9-hoop and 10-fillet weld.

Detailed Description

Example 1

The utility model provides a novel square steel pipe concrete combination abnormal shape beam column is strengthened to cuff, abnormal shape beam column includes more than one square steel pipe 6, the outside cuff that is equipped with the square steel pipe of fastening is restrainted to the post, fill concrete 7 in the square steel pipe 6, the height of restrainting the post is 2.7-3.3 times that the floor layer is high, and connect through groove weld between the upper and lower beam column, as shown in figure 7, reference numeral 5 is groove weld in figure 3.

Example 2

On the basis of the embodiment 1, the transverse section of the special-shaped beam column consisting of the more than one square steel pipes is L type, T type, Z type or cross type.

Example 3

On the basis of example 2, the ferrule 9 was welded to the beam.

Example 4

In addition to example 3, the upper and lower edges of the ferrule 9 were joined to a beam fillet, such as fillet 10 shown in FIG. 6.

Example 5

On the basis of the embodiment 4, the square steel pipe is a chamfered square steel pipe.

Example 6

On the basis of the embodiment 5, the chamfered square steel pipe and the chamfered square steel pipe are welded.

FIG. 1 is a schematic view of a common steel structure house "leakage column"; in the figure, 1-an external wall, 2-an H-shaped steel column, 3-a column leakage phenomenon and 4-a fireproof plate;

the beam shown in fig. 6 is an L-shaped beam.

Claims

1. A novel hoop reinforced square concrete-filled steel tube combined special-shaped beam column is characterized in that the special-shaped beam column comprises more than one square steel tube, a hoop for fastening the square steel tube is arranged outside the beam column, concrete is filled in the square steel tube, and the upper beam column and the lower beam column are connected through groove welding seams;

the hoop is welded with the beam column, and the upper edge and the lower edge of the hoop are connected with the beam column fillet weld.

2. The novel hoop reinforced square concrete-filled steel tube composite special-shaped beam column as claimed in claim 1, wherein the transverse section of the special-shaped beam column consisting of more than one square steel tubes is L type, T type, Z type or cross type.

3. The novel hoop reinforced square concrete-filled steel tube composite special-shaped beam column as claimed in claim 1, wherein the square steel tube is a chamfered square steel tube.

4. The novel hoop reinforced square concrete-filled steel tube composite special-shaped beam column as claimed in claim 3, wherein the chamfered square steel tube is welded with the chamfered square steel tube.