CN219604530U - Profile steel column beam connection structure - Google Patents

Abstract

The utility model discloses a steel column and beam connecting structure, which comprises at least one H-shaped section steel column, wherein two mutually parallel surfaces on the steel column are flange surfaces, and a group of beam steel bars perpendicular to the steel column; a plurality of connection pieces are fixed on the flange surface of the profile steel column, are cylindrical bodies with internal threads, are fewer than or equal to the number of beam steel bars, and are in one-to-one correspondence with the beam steel bars; the beam reinforcement corresponding to the connecting piece is provided with external threads at the end part, and is connected with the connecting piece through threaded engagement; and (3) pouring concrete into the steel column to form a whole after the steel column is connected with the beam steel bar. The connecting piece is used, and is in threaded connection with the beam steel bar, so that the connecting piece is more stable, reliable and convenient; the flange surfaces of the connecting piece and the profile steel column are connected by welding, so that more welding points are formed, and the assembly can be completed in a factory. The armpit area in the beam steel bar reduces the requirement for the opening of the column body of the profile steel column, and can provide support for the connecting piece in the other direction.

Description

Profile steel column beam connection structure

Technical Field

The utility model belongs to the technical field of buildings, in particular to a steel structure building, and particularly relates to a steel column and beam connecting structure.

Background

In recent years, the steel columns are widely applied to steel structure buildings, are embedded permanent structural members and are important to the overall building quality. The most common steel column is provided with an H-shaped section or a section formed by two H-shaped sections which are mutually perpendicular, and column steel bars are arranged around or parallel to the section steel column; and on the horizontal direction, adjacent steel columns are fixedly connected by beam steel bars so as to ensure the structural strength of the steel columns, and then concrete pouring is carried out.

In the prior art, the section steel columns are fixedly connected with the beam steel bars through welding, and obviously, the welding quality directly determines the overall quality of the column-beam structure. For this reason, technicians adopt a lot of technical means, for example, chinese patent CN201310229149.2 discloses a method for connecting steel bar and section steel at beam column joints of a section steel concrete structure, and standard steel bar connecting round holes are formed at joint positions of section steel members, which need to be connected with the steel bars, according to design requirements at section steel manufacturing sites; manufacturing a steel bar according to a certain size longer than a steel bar at a designed connecting node, wherein the steel bar has the same specification as the connecting steel bar, mechanical wire pulling is adopted at the end of the steel bar to be connected, the steel bar passes through a round hole of a steel section member according to the requirement of the designed node, the exposed length and the correct position of the wire pulling end to be connected are ensured, and the round hole of the steel section member and the steel bar are subjected to plug welding compaction; the steel member is installed in place at the construction position, and the steel bar end which needs to be connected with the steel member is also used for pulling wires, and the straight thread sleeve is directly connected with a steel bar pulling wire connector which is preset on the steel member. This approach has relatively high quality of connection, but the process is too complex and inefficient.

Another chinese patent CN201711278855.0 discloses a method for connecting a beam node of a steel reinforced concrete column to a reinforced concrete beam, which comprises an upper flange plate and a lower flange plate, wherein a web is connected between the upper flange plate and the lower flange plate, an upper pin and a corner steel bracket plate are welded on the outer sides of the upper flange plate and the lower flange plate, a beam longitudinal steel bar is welded on the corner steel bracket plate, and an upper steel bar horizontal tie bar is welded between the upper flange plate and the lower flange plate. The utility model designs a novel steel reinforced concrete column-reinforced concrete beam node connection method, which comprises the steps of firstly adopting an angle steel bracket plate to weld with a reinforced concrete beam, and avoiding the problem that the anchoring length and the welding length of a beam longitudinal steel bar and the angle steel bracket plate are insufficient due to the special size of a profile steel column; and then, adopting a steel bar horizontal tie bar to prevent the welded joint of the steel column and the beam from generating flange buckling, namely the local instability of the joint. The method also greatly increases the welding workload on site and has low efficiency.

Disclosure of Invention

The utility model aims to provide a connecting structure of a profile steel column beam, which has good connecting strength and is easy to construct.

Therefore, the technical scheme adopted by the utility model is as follows: a beam connection structure of a steel column comprises at least one H-shaped section steel column, wherein two parallel surfaces on the steel column are flange surfaces, and a group of beam steel bars perpendicular to the steel column; the method is characterized in that: a plurality of connection pieces are fixed on the flange surface of the profile steel column, are cylindrical bodies with internal threads, are fewer than or equal to the number of beam steel bars, and are in one-to-one correspondence with the beam steel bars; the beam reinforcement corresponding to the connecting piece is provided with external threads at the end part, and is connected with the connecting piece through threaded engagement; and (3) pouring concrete into the steel column to form a whole after the steel column is connected with the beam steel bar.

Further, the section of the steel column is in two H shapes which are perpendicular to each other, so that the steel column is provided with four flange surfaces which are parallel to each other; a plurality of connection pieces are fixed on the four flange surfaces.

Furthermore, in the group of beam steel bars, beam steel bars positioned at the outer edge are provided with armpit areas at the intersections with the section steel columns; the haunched area is formed by bending the beam steel bar outwards, and is parallel to the extension line of the original beam steel bar after reaching the section steel column area, and is bent inwards after passing over the section steel column area, so that the beam steel bar and the original extension line form a trapezoid, and the actual beam steel bar is the top edge and the bevel edge of the trapezoid.

The part of the beam steel bar forming the trapezoid top edge is at least partially projected and overlapped with a connecting piece fixed on a flange surface parallel to the beam steel bar; and are in contact with each other in the height direction.

During construction, building a model by using BIM technology to deepen reinforcing steel bars of nodes of a profile steel column and a structural beam, so as to obtain accurate data; positioning and paying off according to the obtained accurate data, accurately welding a connector, erecting a support frame body, bending to form a haunched area, hoisting a steel column, connecting steel bars by the connector, binding column steel bars according to the data obtained by a BIM technology, binding and bending beam steel bars, and binding additional stirrups at the bent position; and finally, pouring concrete and curing.

The utility model uses the connection piece, wherein the connection piece is in threaded connection with the beam steel bar, the connection mode is relatively more stable and reliable, and the operation is more convenient; the flange surfaces of the connecting piece and the profile steel column are connected by welding, so that more welding points are formed on one hand, and on the other hand, welding operation can be finished in a centralized manner in a factory, thereby being more beneficial to construction management and improvement of welding quality. Meanwhile, the setting of armpit area in the beam reinforcement has reduced the demand to the trompil of section steel column cylinder to the beam reinforcement can provide the support to the piece of plugging into of another direction of its top, more is favorable to the beam reinforcement of another direction and the connection operation of piece of plugging into.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic front and side view of a connector.

Detailed Description

Referring to the drawings, a coordinate system is set in the drawings, wherein the X axis is transverse, the Y axis is vertical, and the Z axis is vertical to the paper surface.

The section of the profile steel column is in the Z-axis direction and is two H-shaped sections 11 and 12 which are mutually perpendicular, wherein two parallel flange surfaces 111 and 112 are arranged at two ends of the H-shaped section 11, and five connecting pieces 113 are fixedly welded at each end of the H-shaped section towards the X-axis direction; two parallel flange faces 121 and 122 are arranged at two ends of the H-shaped section 12, and five connectors 123 are fixedly welded on each flange face in the Y-axis direction.

Since the flange surfaces and the connectors are arranged in the X axis and Y axis directions in this embodiment, the beam can be arranged in the X\Y direction, and only the situation of connecting the reinforcing bars of the X axis beam is shown in fig. 1.

Through BIM modeling calculation, the total number of beam steel bars in the X-axis direction of the embodiment is eleven, wherein the beam steel bars comprise five beam steel bars 21 connected with a steel column through a connecting piece, four beam steel bars 22 penetrating through the steel column, and two beam steel bars 23 penetrating through the steel column at the periphery. The beam steel bar 21 is provided with an end with external threads and is connected with the connecting piece 113 in a meshed manner; the beam steel bar 22 passes through the preset holes on the profile steel column and penetrates through the two sides of the profile steel column.

The beam bars 21 and 22 are straight, the outer beam bar 23 has a bent armpit area, which is bent outward near the steel column to form a bevel 231, then a top edge 233 parallel to the beam bar 22 and the flange 122 is formed, and the bevel 232 formed by the inward bending returns to the original extension line. Wherein the slope of the oblique sides 231, 232 is not greater than 1:6, and the top edge 233, the oblique sides 231, 232 and the virtual straight line of the original extending direction form a trapezoid.

Fig. 2 shows the shape of the connector 123, it being noted that this figure is schematic and not entirely accurate. It can be seen that it is substantially cylindrical in shape, with an internal thread on the inner wall and an axial recess on the outer surface. As can be seen in fig. 1, the top edge portion 233 of the beam stiffener 23 overlaps the projection of the connector 123, both staggered in the Z-axis direction, so that the connector 123 "rests" on the beam stiffener 233 for support.

In the embodiment, a plurality of column steel bars 3 in the Z-axis direction are also arranged and are intersected and bound with the beam steel bars so as to further improve the strength; there are stirrups 4 to tie the beam bars. And after the steel structure operation is completed, the steel column, the column steel bar, the beam steel bar and the stirrup are poured into a whole by concrete.

Claims (4)

1. A beam connection structure of a steel column comprises at least one H-shaped section steel column, wherein two parallel surfaces on the steel column are flange surfaces, and a group of beam steel bars perpendicular to the steel column; the method is characterized in that: a plurality of connection pieces are fixed on the flange surface of the profile steel column, are cylindrical bodies with internal threads, are fewer than or equal to the number of beam steel bars, and are in one-to-one correspondence with the beam steel bars; the beam reinforcement corresponding to the connecting piece is provided with external threads at the end part, and is connected with the connecting piece through threaded engagement; and (3) pouring concrete into the steel column to form a whole after the steel column is connected with the beam steel bar.

2. A steel column-beam connection structure according to claim 1, wherein: the section of the steel column is in two H shapes which are perpendicular to each other, so that the steel column is provided with four flange surfaces which are parallel to each other; a plurality of connection pieces are fixed on the four flange surfaces.

3. A steel column-beam connection structure according to claim 2, wherein: in the group of beam steel bars, beam steel bars positioned at the outer edge are provided with armpit areas at the intersections with the section steel columns; the haunched area is formed by bending the beam steel bar outwards, and is parallel to the extension line of the original beam steel bar after reaching the section steel column area, and is bent inwards after passing over the section steel column area, so that the beam steel bar and the original extension line form a trapezoid, and the actual beam steel bar is the top edge and the bevel edge of the trapezoid.

4. A steel column-beam connection structure according to claim 3, wherein: the part of the beam steel bar forming the trapezoid top edge is at least partially projected and overlapped with a connecting piece fixed on a flange surface parallel to the beam steel bar; and are in contact with each other in the height direction.