CN204551758U - For the sticking board type mental node that girder steel, bracing members are connected with Flat steel pipe concrete column - Google Patents

Abstract

The utility model discloses a plate-attached joint used for connecting steel beams, steel supports and flat steel tube concrete columns. One end of the corbel is connected to the end face of the steel beam, and the other end is fixedly connected to the side of the short side of the rectangular steel pipe of the flat steel tube concrete column. One end of the supporting corbel is connected obliquely to the side of the corbel and the short side of the rectangular steel pipe is connected At right angles to the side, the two wings are respectively connected to the side of the corbel and the side where the short side of the rectangular steel tube of the flat steel pipe concrete column is located. Connect the end face of the steel beam; the paste plate is welded on the corbel and the flange of the supporting corbel and the side where the long side of the rectangular steel tube of the flat steel tube concrete column is located. The utility model is applied in a multi-story steel structure, which can meet the rigid connection force transmission requirements of beams and columns, and is used for the rigid connection of steel beams and flat steel pipe concrete columns. The utility model has clear force transmission, simple structure, convenient and quick processing, and can easily pour concrete.

Description

Slab joints for connecting steel beams, steel braces and flat concrete-filled steel tube columns

technical field

The utility model relates to a connection node of a steel beam, a support and a column, in particular to a plate-attached joint used for connecting a steel beam, a steel support and a flat steel tube concrete column, which can be widely used in H-shaped multi-story steel structures. Rigid connection of steel beams, braces and flat concrete filled steel tube columns.

Background technique

In the multi-story steel structure, the steel girders are mostly H-shaped steel beams, and the steel columns are mostly rectangular steel tube concrete columns, and are provided with anti-lateral force supports. The rigid connection of steel beams, supports and steel columns is the most basic measure to provide the overall rigidity and seismic performance of the structure. At present, the commonly used connection nodes are to set transverse diaphragms at the positions corresponding to the beams and supporting flanges of the steel columns. The internal force of the steel beams and supporting flanges is transmitted to the steel columns through the diaphragms, providing a certain degree of rigidity and strength guarantee, thus forming a rigid joint. node. There are two types of partitions: inner partitions and through transverse partitions, which correspond to the two components of box-shaped columns and cold-formed high-frequency welded rectangular steel pipe columns respectively.

In order to facilitate the pouring of concrete in the steel pipe column, grouting holes and ventilation holes need to be set on the partition, and the diameter of the grouting hole should not be less than 150mm. In addition, for the needs of force transmission in the joint domain, the weakening of the diaphragm by the grouting hole should not be too large, which limits the cross-sectional width of the steel column to not be too small, and the cross-sectional width is generally not less than 350~400mm.

In the steel structure residence, the excessively large steel column cross-section will appear in the four corners of each functional room of the residence, which will affect the use function of the interior building. Architectural design wishes to hide structural members within the thickness of the wall, such as shear wall structures. This requires that the section width of the steel members used in the residence be controlled between 180mm and 300mm.

The country is currently vigorously promoting the industrialization of construction and housing. Steel structures are better green building products with extremely superior seismic performance. How to use steel structure in residential system, give full play to the characteristics of industrialization of steel structure, and meet the functional requirements of residential buildings is a very important and urgent task.

Therefore, it is proposed to adopt the form of flat steel tube concrete column, to make the short side dimension of the steel box column as small as possible, which is equal to the thickness of the concrete shear wall, and to make the long side dimension of the steel box column as large as possible to form a flat steel tube concrete column To meet the requirements of the residential steel structure system. However, due to the small width of the section, the flat concrete-filled steel tube column cannot accommodate the diaphragm in order to ensure the smooth pouring of the internal concrete, so the connection with the steel beams and supports cannot be in the form of a diaphragm.

Based on the above technical background, the current partition connection joints require that the steel column section should not be too small, while the architectural function requires that the steel column section should not be too large.

Contents of the invention

In order to overcome the contradiction between the existing clapboard-type beams, supports and rigid joints of columns and the smaller steel column sections of steel structure houses, and cooperate with the development of the flat steel tube concrete column house structure system, the utility model proposes a steel beam, The plate-attached joints connecting steel supports and flat concrete-filled steel tube columns can be widely used in the rigid connection between H-shaped steel beams, supports and flat steel-filled concrete columns in multi-story steel structures, and can meet the force transmission requirements of beam-column rigid joints. Simple, clear force transmission, convenient and fast processing, easy to pour concrete.

The technical scheme that the utility model adopts is:

One end of the corbel is connected to the end face of the steel beam, the other end of the corbel is fixedly connected to the side where the short side of the rectangular steel tube of the flat steel tube concrete column is located, and one end of the supporting corbel is connected obliquely to the side of the side of the corbel and the short side of the rectangular steel tube At right angles on one side of the connection, the two wings of the supporting corbel are respectively connected to the side of the corbel and the short side of the rectangular steel tube of the flat steel pipe concrete column. , the other end of the supporting corbel is connected to the end face of the steel beam; the axes of the steel beam and the corbel are parallel to the long side of the rectangular steel tube of the flat concrete filled steel tube column, and the paste plate is welded on the flange of the corbel, where the long side of the rectangular steel tube of the flat steel tube concrete column is located on the sides and on the flanges of the supporting corbels.

The upper and lower flanges on the same side of the corbel are connected with a common veneer or each are connected with a veneer.

The flange of the corbel and the flange of the supporting corbel are all welded with the veneer.

The flat steel pipe concrete column and the laminated plate are welded by three-side surrounding welding.

The flat steel pipe concrete column and the pasting board are provided with openings, and the flat steel pipe concrete column and the pasting board are connected through cross-piercing rods.

The piercing bar is a piercing steel bar, and the two ends of the piercing steel bar are welded to the pasting plate.

The piercing rod is a piercing bolt, and the two ends of the piercing bolt are tightened and fixed by nuts.

The welding between the steel beam flange and the corbel flange, the steel beam web and the corbel web, the steel beam web and the supporting corbel web are all connected by connecting plates, and the connecting plates are made of high-strength Bolt on.

The flat steel pipe concrete column is formed by pouring concrete inside a rectangular steel pipe, and the ratio of the long side to the short side of the rectangular steel pipe is 1-5.

The steel beams and corbels are all H-shaped steel, and the supporting corbel can be H-shaped steel or square rectangular steel pipe.

The beneficial effects of the utility model are reflected in:

The utility model can provide good lateral force resistance performance for the structure and good connection rigidity for nodes.

The node structure of the outer plate of the utility model is simple to process, and compared with the common box-shaped column, it does not need to assemble the inner partition plate, and does not need electroslag welding, which reduces the difficulty of processing and manufacturing.

The utility model can ensure the rigidity and strength of the node and the node domain, and prevent the local bulging deformation of the laminated plate under the pressure transmitted by the compressed flange.

The utility model can be widely used in connection nodes between flat steel pipe concrete columns and steel beams with small section width in residential buildings such as steel structure houses and apartments.

Description of drawings

Fig. 1 is the elevation view that the upper and lower flanges of the steel girder of the present invention have a common pasting plate.

Fig. 2 is the elevation view of the upper and lower flanges of the steel girder of the present invention respectively having a plate attached.

Fig. 3 is a plan view of the utility model.

In the figure: 1. Flat steel tube concrete column, 2. Cross-piercing rod, 3. Laminated plate, 4. Steel beam, 5. Concrete, 6. Connecting plate, 7. Weld seam, 8. Corbel, 9. Butt welding seam, 10, high-strength bolts, 11, supporting corbels.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in Figure 1, the utility model includes: splicing the steel beam 4, the corbel 8 and the supporting corbel 11 on site, one end of the corbel 8 is connected to the end face of the steel beam 4 in parallel, and the other end of the corbel 8 is connected to the flat steel pipe concrete The side of the short side of the rectangular steel pipe of the column 1 is fixedly connected by the sticking plate 3, and one end of the supporting corbel 11 is connected obliquely to the right angle between the side wing of the corbel 8 and the side where the short side of the rectangular steel pipe is located, and the supporting corbel 11 The two wings of the corbel 8 are respectively connected with the side of the corbel 8 and the short side of the rectangular steel pipe of the flat steel pipe concrete column 1. The corbel 8 and the supporting corbel 11 are connected to the flat steel pipe concrete column 1 through the sticking plates 3 on both sides, and the supporting corbel 11 The other end is connected to the end face of the steel beam 4; the axes of the steel beam 4 and the corbel 8 are parallel to the long side of the rectangular steel tube of the flat concrete-filled steel tube column 1, and the paste plate 3 is welded on the flange of the corbel 8, and the flat steel tube concrete column 1 is rectangular On the side where the long side of the steel pipe is located and on the flange supporting the corbel 11.

Preferably, as shown in Figure 2, the upper and lower flanges on the same side of the corbel 8 are respectively connected with a patch 3, which is divided into the patch 3 of the upper and lower flanges, and a patch connects the upper flange of the corbel 8, the flat The concrete-filled steel tube column 1 is reinforced and connected with the support corbel 11, and another plate is used to reinforce and connect the lower flange of the corbel 8 with the flat concrete-filled steel tube column 1.

Preferably, as shown in Figure 1, the upper and lower flanges on the same side of the corbel 8 are connected with a common patch 3, actually connecting the two panels 3 in Figure 2 into one, the upper and lower wings on the same side edges are connected through the subplate 3

The flange of the corbel 8 is welded to the veneer 3, as shown in the weld 7 in Figures 2 and 3. The flat steel tube concrete column 1 is welded to the laminated plate 3 by means of three-sided surrounding welding, as shown in Fig. 2 and Fig. 3 as the weld seam 7 .

Preferably, when the wall plate of the flat steel tube concrete column 1 is relatively thin, in order to improve the rigidity and strength, the flat steel tube concrete column 1 and the sticking plate 3 are provided with openings, as shown in Figure 1, the flat steel tube concrete column 1 and the sticking plate The plates 3 are connected through the piercing rods 2 . When the penetrating bar 2 is a penetrating steel bar, the two ends of the penetrating steel bar are welded to the pasting plate 3 . When the penetrating rod member 2 is a penetrating bolt, both ends of the penetrating bolt are tightened and fixed by nuts.

Preferably, as shown in Figure 1, the flanges of the steel beam 4 and the flanges of the corbel 8 and the supporting corbel 11 are all welded, such as the butt weld 9 shown in Figures 1 to 3, the web of the steel beam 4 and the corbel The webs of the legs 8 and the webs of the steel beam 4 and the supporting corbel 11 are connected through the connecting plate 6, and the connecting plate 6 is respectively fixed on the web of the steel beam 4, the supporting corbel 11 and the corbel with high-strength bolts 10. 8 on the web, the connecting plate 6 is used to resist shear force.

The flat steel pipe concrete column 1 is formed by pouring concrete inside a rectangular steel pipe, and the ratio of the long side to the short side of the rectangular steel pipe is 1-5. Both the steel beam 4 and the corbel 8 are H-shaped steel beams, and the supporting corbel 11 can be H-shaped steel or square rectangular steel pipe

The working principle of the utility model is as follows:

The bending moment transmitted by the end of the steel beam in the utility model is expressed as the axial force of the upper and lower flanges. The axial force first passes through the corbel and then passes through the welds on both sides to the plate, and the plate is transmitted to the flat steel pipe concrete column through the weld. , to ensure the stiffness and strength of the nodes and node domains.

The shear force transmitted at the end of the steel beam is transmitted through the high-strength connection of the connecting plate between the steel beam web and the corbel web for shear resistance.

The role of the piercing member is to provide local stable support for the panel and the wall of the nearby flat steel tube concrete column, and to prevent the local buckling deformation of the panel under the pressure transmitted by the compression flange.

There is no dividing plate in the flat steel tube concrete column of the utility model, and the pouring of concrete is very smooth without any influence.

Although the connection between the support member and the beam-column can be calculated as a hinge, the joints are generally constructed as a rigid connection. This node form can better guarantee the force transmission of the support node and provide better node performance.

The content described in the embodiments of this specification is only an enumeration of the realization forms of the utility model concept, and the protection scope of the utility model should not be regarded as being limited to the specific forms stated in the embodiments, and the protection scope of the utility model also extends to Equivalent technical means that those skilled in the art can think of according to the concept of the utility model.

Claims (10)

1., for the sticking board type mental node that girder steel, bracing members are connected with Flat steel pipe concrete column, it is characterized in that:

One end of bracket (8) is connected on girder steel (4) end face, bracket (8) other end is fixedly connected with the side, minor face place of Flat steel pipe concrete column (1) rectangular steel pipe, being connected to bracket (8) flank with supporting bracket (11) one end oblique cutting is connected on the right angle of side with side, rectangular steel pipe minor face place, support bracket (11) both wings respectively with bracket (8) flank, side, Flat steel pipe concrete column (1) rectangular steel pipe minor face place connects, bracket (8) and support bracket (11) are all connected on Flat steel pipe concrete column (1) by the pasting board (3) of both sides, support bracket (11) other end and connect girder steel (4) end face,

Girder steel (4) is all parallel with the long limit of Flat steel pipe concrete column (1) rectangular steel pipe with the axis of bracket (8), and pasting board (3) is welded on the edge of a wing of bracket (8), on the side at place, Flat steel pipe concrete column (1) rectangle steel pipe range limit and support on the edge of a wing of bracket (11).

2. a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members according to claim 1, is characterized in that: the upper and lower edge of a wing of described bracket (8) the same side is connected with one block of common pasting board (3) or is respectively connected with one piece of pasting board (3).

3. a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members according to claim 1, is characterized in that: the edge of a wing of described bracket (8), the edge of a wing of support bracket (11) are all welded with pasting board (3).

4. a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members according to claim 1, is characterized in that: described Flat steel pipe concrete column (1) is welded by the mode of three weld all arounds with pasting board (3).

5. a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members according to claim 1, it is characterized in that: described Flat steel pipe concrete column (1) and pasting board (3) are provided with perforate, Flat steel pipe concrete column (1) and pasting board (3) are by being connected bar part (2).

6. a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members according to claim 5, is characterized in that: described is to wearing reinforcing bar to bar part (2), welds with pasting board (3) the two ends of wearing reinforcing bar.

7. a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members according to claim 5, is characterized in that: described is to wearing bolt to bar part (2), is tightened fixing to the two ends of wearing bolt by nut.

8. according to the arbitrary described a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members of claim 1 ~ 7, it is characterized in that: described girder steel (4) edge of a wing is welded with between bracket (8) edge of a wing, all be connected by junction plate (6) between described girder steel (4) web with bracket (8) web, between girder steel (4) web with support bracket (11) web, junction plate (6) high-strength bolt (10) is fixed.

9. according to the arbitrary described a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members of claim 1 ~ 7, it is characterized in that: described Flat steel pipe concrete column (1) is formed by the inner concreting of rectangular steel pipe, and the long limit of rectangular steel pipe and minor face ratio are 1 ~ 5.

10. according to the arbitrary described a kind of sticking board type mental node be connected with Flat steel pipe concrete column for girder steel, bracing members of claim 1 ~ 7, it is characterized in that: described girder steel (4), bracket (8) are H profile steel, supporting bracket (11) is H profile steel or square steel tube.