CN207988140U - New Sleeve quadrate steel pipe column and H profile steel beam assembling type node - Google Patents

Abstract

The utility model proposes a new sleeve-type square steel pipe column and H-shaped steel beam assembly type joint, including square steel pipe column sections in the node area, H-shaped steel beam sections in the node area, and connectors. The connectors include square sleeves sleeve, H-shaped sleeve and supporting steel plate, the square outer sleeve and the square steel pipe column are connected by high-strength bolts, which can effectively prevent the local protrusion of the bolt caused by the thin wall of the square steel pipe column, and improve the connection between the column and the steel pipe column. The bearing capacity of the beam bolt connection; the H-shaped sleeve and the square sleeve are connected by welding, which increases the welding area compared with the conventional form, making the joint more firm and safe; the supporting steel plate is simultaneously connected with the square sleeve and the node area H The steel beam section and the square steel pipe column section in the node area are connected by high-strength bolts, which improves the bearing capacity of the beam-column node, makes the force more reasonable, and the node is more reliable; the welding part can be completed in the factory to achieve zero welding on site, which is suitable for square Prefabricated connection of steel pipe column and H-shaped steel beam structure.

Description

A new type of sleeve-type square steel pipe column and H-shaped steel beam assembled joint

technical field

The utility model belongs to the field of building steel structures, in particular to a beam-column assembled node in the steel structure.

Background technique

Steel structures are widely used for their light weight, high strength, high ductility, good seismic performance, fast construction speed, small component cross-section, and environmental protection. Square steel pipe columns and H-shaped steel beams are used as the main load-bearing components, and the joints connecting square steel pipe columns and H-shaped steel beams play an important role in structural force transmission and stability. The assembled rigid joints of the steel structure have sufficient rigidity, can keep the original angle between the intersecting members unchanged, and have sufficient ability to bear and transmit bending moments.

At present, the connection nodes of square steel pipe columns and H-shaped steel beams include all-welded connections, bolted connections or bolt-welded connections. For the traditional on-site welding joints, the on-site construction is very difficult, and various factors such as the on-site construction environment and the construction conditions of the workers may have adverse effects on the welding quality during the construction process. It is difficult to guarantee the quality of the joints and cannot meet the requirements of assembly The requirement of fast construction speed of type steel structure. However, in the current traditional bolted connection, there may be local protrusions at the bolts caused by the thin wall of the square steel pipe column, which will affect the performance of the joint.

Utility model content

The purpose of this utility model is to provide a new type of sleeve-type square steel pipe column and H-shaped steel beam with no welding on site, better overall mechanical performance and safer for the shortcomings of the existing traditional square steel pipe column and H-shaped steel beam joints. Section steel beam assembly type node.

Technical scheme of the utility model:

A new sleeve-type square steel pipe column and H-shaped steel beam assembly type joint, including square steel pipe column sections in the node area, H-shaped steel beam sections in the node area and connectors, characterized in that: the connectors include square sleeves , H-shaped sleeve, support plate and bolts, the square steel pipe column section in the node area penetrates into the square sleeve, and is connected with the square steel pipe column section in the node area through high-strength bolts; the H-shaped sleeve is welded on the square On the outer wall of the H-shaped sleeve, the H-shaped steel beam section in the node area penetrates into the H-shaped sleeve and is connected with the H-shaped sleeve through high-strength bolts;

One end of the support plate is connected with the H-shaped sleeve and the H-shaped steel beam section in the node area through high-strength bolts, and the other end is connected with the square steel pipe column section in the node area through high-strength bolts.

Further, the wall thickness of the square sleeve is 8-11mm, and the inner wall size of the square sleeve is equal to the outer wall size of the square steel pipe column section in the node area; the inner wall size of the H-shaped sleeve section is the same as the H-shaped steel beam section in the node area The dimensions of the outer wall of the section are the same, the height of the H-shaped sleeve is taken as the beam height, and the wall thickness is taken as 6-9mm.

Further, the square steel pipe column in the node area penetrating into the square sleeve is divided into two sections, and the joint of the square steel pipe column in the node area of the two sections is located in the square sleeve.

Further, the included angle between the support plate and the square steel pipe column in the node area is controlled within 40-50 degrees.

Further, the plate width of the support plate is 1/4 of the flange width of the H-shaped steel beam section in the node area, the thickness of the plate is the thickness of the flange of the H-shaped steel beam section in the node area, and two square steel pipe column sections are provided on each side of the node area support board.

Further, each side of the square sleeve is connected with the square sleeve by bolts, and the upper flange plate, the lower flange plate and the web of the H-shaped steel beam section in the node area are all connected by bolts at the nodes. H-shaped sleeve connection; the threaded holes on the side of the square sleeve are on the left and right sides of the H-shaped steel beam section in the node area.

Further, the bolts used to connect the support plate with the square steel pipe column section in the node area, the H-shaped sleeve and the H-shaped steel beam section in the node area are pressure-bearing high-strength bolts; the H-shaped sleeve and the H-shaped steel beam section in the node area The bolts used to connect the steel beam sections are friction-type high-strength bolts.

Furthermore, the bolts used to connect the square sleeve to the square steel pipe column in the node area are shear-torsion-resistant high-strength bolts.

The construction method of the novel sleeve-type square steel pipe column and H-shaped steel beam assembly type node includes the following steps:

Step 1, the factory prefabricated the square steel pipe column section in the joint area, the H-shaped steel beam section in the joint area, the square sleeve, the H-shaped sleeve and the support plate; during the factory processing, the H-shaped sleeve was welded to the square sleeve , the bolt holes of all components at the nodes are reserved according to the calculation according to the actual size;

Step 2. During on-site installation, connect the square sleeve with the H-shaped sleeve welded on it to the square steel pipe column section in the node area with shear-torsion-resistant high-strength bolts, and then insert the H-shaped steel beam section in the node area into the H-shaped sleeve cylinder, aligned, and connected with friction-type high-strength bolts, and finally use pressure-bearing high-strength bolts to connect the support plate and H-shaped sleeve, the H-shaped steel beam section in the node area, and the square steel pipe column section in the node area with pressure-bearing high-strength bolts connect.

The utility model has the following characteristics and beneficial effects:

First of all, compared with the traditional on-site welding joint form, the assembled joint formed by the square steel pipe column and the H-shaped steel beam has the advantages of convenient and quick construction, shortened construction period, low carbon and environmental protection, and can avoid various accidental factors during the construction process. Advantages such as adverse effects on welding quality.

Secondly, the square sleeve is connected to the square steel pipe column in the node area through high-strength bolts, which improves the bearing capacity of the bolt connection on the square steel pipe column in the node area, and effectively prevents the square steel pipe column in the traditional node from being too thin. The local protrusion at the bolt caused by this will affect the performance of the joint.

Furthermore, the H-shaped sleeve and the square sleeve are connected by welding, which increases the welding area of the conventional form, improves the bearing capacity of the joint, and makes the joint stronger.

Finally, the H-shaped sleeve is prefabricated in the factory according to the size of the H-shaped steel beam. Compared with traditional nodes, it can achieve higher precision, better force transmission effect, and is more stable and safe.

Description of drawings

Fig. 1 is a schematic diagram of the assembled node structure of the novel sleeve-type square steel pipe column and the H-shaped steel beam described in the utility model.

Figure 2 is a detailed view of the square steel pipe column section in the node area.

Figure 3 is a detailed view of the H-shaped steel beam section in the node area.

Figure 4 is a detailed view of the H-shaped sleeve.

Figure 5 is a detailed view of the square sleeve.

Figure 6 Details of the support plate.

In the figure: 1—square steel pipe column section in node area; 2—H-shaped steel beam section in node area; 3—square sleeve; 4—H type sleeve; 5—support plate; 6—pressure-bearing high-strength bolt; 7—Friction type high-strength bolts; 8—Shear torsion high-strength bolts.

Detailed ways

Below in conjunction with accompanying drawing, the utility model will be further described with specific embodiment:

As shown in Figure 1, the new sleeve-type square steel pipe column and H-shaped steel beam assembly type node described in the utility model includes square steel pipe column section 1 in the node area, H-shaped steel beam section 2 in the node area and connectors. The connectors include square sleeve 3, H-shaped sleeve 4 and support plate 5 connectors.

The square steel pipe column section 1 in the node area penetrates into the square sleeve 3, and the square sleeve 3 and the square steel pipe column section 1 in the node area are connected by high-strength shear-torsion-resistant bolts. The H-shaped sleeve 4 is welded on the outer wall of the square sleeve 3, the H-shaped steel beam section 2 in the node area penetrates into the H-shaped sleeve 4, and the H-shaped steel beam section 2 and the H-shaped sleeve 4 in the node area pass through the friction type High-strength bolts 7 are connected, one end of the support plate 5 is connected with the H-shaped sleeve 4 and the H-shaped steel beam section 2 in the node area through high-strength bolts, and the other end is connected with the square steel pipe column section 1 in the node area through high-strength bolts.

The wall thickness of the square sleeve 3 directly affects the bearing capacity of the bolt connection on the square steel pipe column section 1 in the node area, avoiding the local protrusion of the bolt caused by the thin beam wall, and the calculated thickness here is 8-11mm. The size of the inner wall of the square sleeve 3 is equal to the size of the outer wall of the square steel pipe column section 1 in the node area. Each side of the square sleeve 3 has 5 bolt holes on the left and right sides of the H-shaped steel beam section 2 in the node area. The specific size is determined by the actual The situation is evenly and reasonably arranged.

Compared with conventional nodes, the H-shaped sleeve 4 increases the weldable area. The size of the inner wall of the section of the sleeve 4 is the same as the size of the outer wall of the section of the H-shaped steel beam section 2 in the node area. The height of the sleeve 4 is taken as the beam height, and the wall thickness is taken as 6 ~ 9mm, there are 4 bolt holes on each side of the upper and lower flanges of the sleeve 4, as shown in the figure, the outer two are compactly arranged, and the other are evenly arranged. Two bolt holes are evenly arranged in the middle of the sleeve web.

The support plate 5 is connected to the square steel pipe column section 1 in the node area, the H-shaped sleeve 4 and the H-shaped steel beam section 2 in the node area, and the plate width is 1/4 of the flange width of the H-shaped steel beam section 2 in the node area. The thickness of the plate is taken as the thickness of the flange of H-shaped steel beam section 2 in the joint area, and there are two square steel pipe columns on each side of the joint area. The angle between the support plate and the square steel pipe column section 1 in the node area is preferably controlled between 40 and 50 degrees, and the connection holes at both ends of the support plate are 1 to 2 on each side according to the size. The bolts used to connect the support plate 5 with the square steel pipe column section 1 in the node area, the H-shaped sleeve 4 and the H-shaped steel beam section 2 in the node area are pressure-bearing high-strength bolts 6 .

The construction method of the novel sleeve-type square steel pipe column and H-shaped steel beam assembled joint has the following steps: prefabricate square sleeve 3, H-shaped sleeve 4 and support plate 5 in the factory; square steel pipe column section in the node area 1. Open connection holes at the corresponding positions of square sleeve 3, H-shaped sleeve 4, support plate 5, and H-shaped steel beam section 2 in the node area; weld H-shaped sleeve 4 to square sleeve 3 in the factory at the corresponding location.

The square steel pipe column section 1 in the node area, the square sleeve 3 welded with the H-shaped sleeve 4, the H-shaped steel beam section 2 in the node area and the support plate 5 are transported to the construction site. The square sleeve 3 welded with the H-shaped sleeve 4 is connected to the square steel pipe column section 1 in the node area through the shear torsion high-strength bolt 8; the H-shaped steel beam section 2 in the node area and the H-shaped sleeve 4 are connected through friction type High-strength bolt connection; connect the support plate 5 with the H-shaped sleeve 4, the H-shaped steel beam section 2 in the node area, and the square steel pipe column section 1 in the node area through pressure-bearing high-strength bolts 6 at corresponding positions.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (8)

1. a kind of New Sleeve quadrate steel pipe column and H profile steel beam assembling type node, including node area square steel tube shell of column (1) and node Area's H profile steel beam section (2) and connector, it is characterised in that：The connector includes square sleeve (3), H-type sleeve (4), support plate (5) with bolt, the node area square steel tube shell of column (1) penetrates in square sleeve (3), and with node area square steel tube shell of column (1) it Between be connected by high-strength bolts；H-type sleeve (4) is welded on the outer wall of square sleeve (3), and node area H profile steel beam section (2) is worn Enter in H-type sleeve (4), and is connected by high-strength bolts with H-type sleeve (4)；

One end of support plate (5) is connect by high-strength bolt with H-type sleeve (4), node area H profile steel beam section (2), and the other end is logical High-strength bolt is crossed to connect with node area square steel tube shell of column (1).

2. New Sleeve quadrate steel pipe column and H profile steel beam assembling type node according to claim 1, it is characterised in that：It is described Square sleeve (3) wall thickness takes 8~11mm, square sleeve (3) inner wall size to be equal to the outer wall ruler of node area square steel tube shell of column (1) It is very little；H-type sleeve (4) the section inner wall size is identical as node area H profile steel beam section (2) section outer wall dimension, the H-type sleeve (4) height takes deck-molding, wall thickness to take 6~9mm.

3. New Sleeve quadrate steel pipe column and H profile steel beam assembling type node according to claim 1, it is characterised in that：It penetrates The node area square steel tube shell of column (1) in square sleeve (3) is two sections, the contact position of Liang Duan nodes area square steel tube shell of column (1) In square sleeve (3).

4. New Sleeve quadrate steel pipe column and H profile steel beam assembling type node according to claim 1, it is characterised in that：Support The angle of plate (5) and node area square steel tube shell of column (1) controls between 40~50 degree.

5. New Sleeve quadrate steel pipe column and H profile steel beam assembling type node according to claim 1, it is characterised in that：It is described The plate width of support plate (5) is a quarter of node area H profile steel beam section (2) flange width, and plate thickness takes node area H profile steel beam section (2) edge of a wing thickness, each side of node area square steel tube shell of column (1) are equipped with 2 support plates (5).

6. New Sleeve quadrate steel pipe column and H profile steel beam assembling type node according to claim 1, it is characterised in that：It is described Square sleeve (3) has bolt to be connect with square sleeve (3) per side, the top flange plate of the node area H profile steel beam section (2), Bottom wing listrium and web have bolt to be connect with H-type sleeve (4) at node；The threaded hole of square sleeve (3) side is in node At left and right sides of area's H profile steel beam section (2).

7. New Sleeve quadrate steel pipe column and H profile steel beam assembling type node according to claim 1, it is characterised in that：It is described Support plate (5) connect bolt used with node area square steel tube shell of column (1), H-type sleeve (4) and node area H profile steel beam section (2) Pressure-bearing type high-strength bolt (6)；It is friction-type that the H-type sleeve (4), which connect bolt used with node area H profile steel beam section (2), High-strength bolt (7).

8. New Sleeve quadrate steel pipe column and H profile steel beam assembling type node according to claim 1, it is characterised in that：Square It is that high-strength bolt (8) is turned round in shearing resistance that sleeve (3), which connect bolt used with node area square steel tube shell of column (1),.