CN209874053U - A fast-splicing H-shaped steel concrete beam-column connection node - Google Patents

Abstract

A fast-split H-shaped steel concrete beam-column connection node, including H-shaped steel columns, connecting plates, stiffening members, H-shaped steel beams and reinforcing ribs; any flange surface of the H-shaped steel column is fixed and vertically provided with H-shaped steel beams, Connecting plates are respectively fixed on the flanges of the H-shaped steel columns at the contact points between the upper and lower flanges of the H-shaped steel beam and the flanges of the H-shaped steel columns; the webs on either side of the H-shaped steel columns are vertically fixed with stiffening members. For H-shaped steel beams, connecting plates are arranged on the webs of H-shaped steel columns at both ends of the stiffening member; several threaded holes are arranged on the connecting plates, and several reinforcing ribs are vertically arranged on the connecting plates. The utility model has a high node assembly rate. All components of the joints, including steel columns, connecting plates, double-ended studs, sleeves and steel bars, can be prefabricated in the factory, and all components can be produced in a modular manner, with high production efficiency, improved on-site construction efficiency, and guaranteed construction quality , with high economic benefits.

Description

A fast-splicing H-shaped steel concrete beam-column connection node

technical field

The utility model belongs to the technical field of beam-column connection nodes, in particular to a quick-fit H-shaped steel-concrete beam-column connection node.

Background technique

Starting from the overall structure, the steel concrete structure has the dual advantages of steel structure and concrete structure. Compared with the reinforced concrete structure, because of its higher steel content and the same cross section, the bearing capacity of the steel concrete member is larger than that of the reinforced concrete member; and it has good ductility and seismic performance; the H-shaped steel skeleton can be prefabricated in the factory, which speeds up the on-site construction speed. Compared with the steel structure, the outsourcing concrete of the steel concrete member improves the rigidity of the member, and the steel concrete member with the same steel content is compared with the steel structure member, and the steel concrete member is more rigid; the steel concrete member uses the outsourcing concrete to improve the steel member. Excellent fire prevention and anti-corrosion capabilities; secondly, its stability is good.

Starting from the structural nodes, at present, the beam-column connection methods of steel concrete structures usually adopt connection methods such as setting steel corbels, connecting plates, perforating the web plate of steel columns, and anchoring the main reinforcement of beams into concrete columns. However, the existing connection methods will bring many problems. For example, the installation of steel corbels will cause a sudden change in the cross-sectional bearing capacity and stiffness at the end, and concrete extrusion damage will easily occur. Decreased stability; the method of directly welding the longitudinal reinforcement to the connecting plate or the steel column will cause too many welding seams of the steel column, and the accumulation of welding residual stress will lead to the weakening of the section, thereby reducing the joint strength; steel bars of different strengths are welded to the steel , because of the different carbon content, the welding quality is affected, and the joint strength is also weakened.

Utility model content

The purpose of the utility model is to provide a fast assembly type H-shaped steel concrete beam-column connection node to solve the above problems.

In order to achieve the above object, the utility model adopts the following technical solutions:

A fast-split H-shaped steel concrete beam-column connection node, including H-shaped steel columns, connecting plates, stiffening members, H-shaped steel beams and reinforcing ribs; any flange surface of the H-shaped steel column is fixed and vertically provided with H-shaped steel beams, Connecting plates are respectively fixed on the flanges of the H-shaped steel columns at the contact points between the upper and lower flanges of the H-shaped steel beam and the flanges of the H-shaped steel columns; the webs on either side of the H-shaped steel columns are vertically fixed with stiffening members. For H-shaped steel beams, connecting plates are arranged on the webs of H-shaped steel columns at both ends of the stiffening member; several threaded holes are arranged on the connecting plates, and several reinforcing ribs are vertically arranged on the connecting plates.

Further, the reinforcing ribs include double-ended studs, steel bar connectors and steel bars; the steel bar connectors are in the shape of sleeves, and positive and negative threads are arranged in the sleeves, and one end of the double-ended studs is threadedly connected with one end of the steel bar connectors. The other end of the head stud is threaded with the connecting plate; the other end of the steel bar connector is threaded with the steel bar.

Further, the double-ended stud includes a first stud and a second stud, the first stud is longer than the second stud, and the two adjacent double-ended studs on the connecting plate have different lengths.

Further, the threaded holes on the connecting plate are in single or double rows, and the distance between two adjacent threaded holes in the same row is equal.

Further, the connecting plate on the web of the H-shaped steel column is arranged perpendicular to the upper and lower flanges, and the ends of the connecting plate are welded to the upper and lower flanges, and the connecting plate is welded to the web.

Further, the stiffening member includes a first stiffening plate and a second stiffening plate; the two first stiffening plates are welded in parallel on the web of the H-shaped steel column, and the second stiffening plate is welded on the web between the two first stiffening plates Above, both ends of the second stiffening plate are welded to the first stiffening plate, the first stiffening plate is perpendicular to the flange, and the second stiffening plate is parallel to the flange.

Further, the two first stiffeners and the second stiffener form an I-shaped stiffener, and the ends of the H-shaped steel beams are welded to the I-shaped stiffener.

Further, concrete is poured on the outside of nodes formed by H-shaped steel columns, connecting plates, stiffening members, H-shaped steel beams and reinforcing bars.

Compared with the prior art, the utility model has the following technical effects:

The utility model has a high node assembly rate. All components of the joints, including steel columns, connecting plates, double-ended studs, sleeves and steel bars, can be prefabricated in the factory, and all components can be produced in a modular manner, with high production efficiency, improved on-site construction efficiency, and guaranteed construction quality , with high economic benefits.

Compared with the traditional joints of steel concrete columns, beams and columns, the utility model is connected with the connecting plate, and the connecting plate is welded with the shaped steel column. By changing the length of the studs, the utility model satisfies the requirements of the dislocation connection of the steel bar joints and avoids stress concentration. At the same time, the area percentage of the steel bar joint reaches 50%, which belongs to super strong connection. Its connection efficiency is higher, which improves the joint bearing capacity and ductility.

The method for connecting the front and back wire sleeves of the utility model is that the steel bars can be tightened by twisting the sleeves. It avoids the problem that the steel bar passes through the section steel, the section steel opens holes, and weakens the strength of the node. It is easy to install, reduces the amount of on-site welding, and ensures the construction quality.

The utility model strengthens the node strength by means of connecting plates, and its arrangement is more flexible, not limited to the size of the cylindrical surface, and can be adjusted to a single row of connecting plates or a double row of connecting plates according to the force and structure requirements.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the utility model stiffener structural diagram;

Fig. 3 is the utility model stiffener and H-beam connection schematic diagram;

Fig. 4 is a schematic diagram of the connecting plate of the present invention;

Figure 5 is a schematic diagram of the installation of the utility model connecting plate;

Fig. 6 is the utility model stud connection diagram;

Fig. 7 is a schematic diagram of the assembly process of the steel bar connector and the steel bar of the present invention;

Fig. 8 is a schematic diagram of the utility model after pouring concrete.

Among them: 1-H-shaped steel column; 2-stiffener; 3-H-shaped steel beam; 4-connecting plate;

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

Please refer to Figures 1 to 8, a quick-assembled H-shaped steel concrete beam-column connection node, including an H-shaped steel column 1, a connecting plate 4, a stiffening member 2, an H-shaped steel beam 3 and a reinforcing bar; any of the H-shaped steel columns 1 An H-shaped steel beam 3 is fixed and vertically arranged on the surface of a flange, and connecting plates 4 are fixedly arranged on the flanges of the H-shaped steel column 1 at the contact points between the upper and lower flanges of the H-shaped steel beam 3 and the flange of the H-shaped steel column 1; The web on either side of the H-shaped steel column 1 is vertically fixed with an H-shaped steel beam 3 through the stiffening member 2, and a connecting plate 4 is arranged on the web of the H-shaped steel column 1 at both ends of the stiffening member 2; There are several threaded holes, and some reinforcing ribs are arranged vertically on the connecting plate 4 .

The reinforcing ribs include double-ended studs 5, steel bar connectors 6 and steel bars 7; To connect, the other end of the double-ended stud 5 is threaded with the connecting plate 4; the other end of the steel bar connector 6 is threaded with the steel bar 7.

The double-ended studs 5 include a first stud and a second stud, the first stud is longer than the second stud, and two adjacent double-ended studs 5 on the connecting plate 4 have different lengths.

The threaded holes on the connecting plate 4 are single or double rows, and the distance between two adjacent threaded holes in the same row is equal.

The connecting plate 4 on the web of the H-shaped steel column 1 is arranged perpendicular to the upper and lower flanges, and the ends of the connecting plate 4 are welded to the upper and lower flanges, and the connecting plate 4 is welded to the web.

The stiffening member 2 includes a first stiffening plate and a second stiffening plate; the two first stiffening plates are welded in parallel on the web of the H-shaped steel column 1, and the second stiffening plate is welded on the web between the two first stiffening plates , both ends of the second stiffening plate are welded to the first stiffening plate, the first stiffening plate is perpendicular to the flange, and the second stiffening plate is parallel to the flange.

The two first stiffeners and the second stiffener form an I-shaped stiffener, and the ends of the H-shaped steel beam 3 are welded on the I-shaped stiffener.

Concrete 8 is poured on the outside of the node formed by the H-shaped steel column 1 , the connecting plate 4 , the stiffening member 2 , the H-shaped steel beam 3 and the stiffener.

Specific implementation method:

A fast-assembled H-shaped steel concrete beam-column connection node, all components of which are prefabricated by the factory, and assembled and connected after being transported to the construction site. As shown in Figure 1, it is characterized in that:

1. Weld the stiffener 2 to the H-shaped steel column 1. The specific size of the stiffener is determined by the force and the construction method, as shown in Figure 2.

2. The H-shaped steel beam 3 is welded to the H-shaped steel column 1 and the stiffener 2, as shown in FIG. 3 .

3. The connecting plate 4 is welded on the H-shaped steel column 1 . The connecting plate 4 is distributed with threaded holes, and the number of threaded holes can be set as a single row of threaded holes or a double row of threaded holes according to the force and structure requirements. As shown in Figure 4 and 5.

4. The double-ended stud 5 is screwed together with the 4 threaded holes of the connecting plate.

5. Through the sleeve 6, screw the stud 5 and the steel bar 7 together. One end of the steel bar 7 is threaded; the connecting positions of the double-ended stud 5 and the steel bar 7 should be staggered from each other, and in the same section, the area percentage of the steel bar joints should meet the requirements of the national standard. The sleeve 6 should meet the requirements of the "Technical Regulations for Mechanical Connection of Steel Bars" (JGJ107-2010) regarding connection joints. As shown in Figure 6.

6. Binding column longitudinal bars, beam stirrups and beam structural steel bars, and finally pouring concrete. As shown in Figure 7.

Claims (8)

1. A quick-assembly type H-shaped steel concrete beam column connecting node is characterized by comprising an H-shaped steel column (1), a connecting plate (4), a stiffening member (2), an H-shaped steel beam (3) and reinforcing ribs; an H-shaped steel beam (3) is fixedly and vertically arranged on the surface of any one flange of the H-shaped steel column (1), and connecting plates (4) are respectively and fixedly arranged on the flanges of the H-shaped steel column (1) at the contact positions of the upper flange and the lower flange of the H-shaped steel beam (3) and the flange of the H-shaped steel column (1); h-shaped steel beams (3) are vertically and fixedly arranged on webs on any side of the H-shaped steel columns (1) through stiffening members (2), and connecting plates (4) are arranged on webs of the H-shaped steel columns (1) at two ends of each stiffening member (2); a plurality of threaded holes are formed in the connecting plate (4), and a plurality of reinforcing ribs are vertically arranged on the connecting plate (4).

2. The quick-splicing type H-shaped steel concrete beam column connecting joint according to claim 1, wherein the reinforcing ribs comprise double-headed studs (5), reinforcing steel bar connectors (6) and reinforcing steel bars (7); the steel bar connector (6) is in a sleeve shape, positive and negative threads are arranged in the sleeve, one end of the stud (5) is in threaded connection with one end of the steel bar connector (6), and the other end of the stud (5) is in threaded connection with the connecting plate (4); the other end of the steel bar connector (6) is in threaded connection with the steel bar (7).

3. The quick-splicing type H-shaped steel concrete beam-column connecting joint according to claim 2, wherein the stud bolts (5) comprise a first stud bolt and a second stud bolt, the first stud bolt is longer than the second stud bolt, and the two adjacent stud bolts (5) on the connecting plate (4) are different in length.

4. The quick-splicing type H-shaped steel concrete beam column connecting joint as claimed in claim 1, wherein the threaded holes in the connecting plate (4) are single-row or double-row, and the distance between two adjacent threaded holes in the same row is equal.

5. The quick-assembly type H-shaped steel concrete beam column connecting joint according to claim 1, characterized in that the connecting plates (4) on the web plates of the H-shaped steel columns (1) are arranged perpendicular to the upper and lower flanges, the end parts of the connecting plates (4) are welded with the upper and lower flanges, and the connecting plates (4) are welded with the web plates.

6. A quick-splice H-section steel concrete beam column connection node according to claim 1, characterised in that the stiffening elements (2) comprise first and second stiffening plates; the two first stiffening plates are welded on a web plate of the H-shaped steel column (1) in parallel, the second stiffening plate is welded on the web plate between the two first stiffening plates, two ends of the second stiffening plate are welded with the first stiffening plates, the first stiffening plates are perpendicular to the flange, and the second stiffening plates are parallel to the flange.

7. The quick-splicing type H-shaped steel concrete beam column connecting node according to claim 6, wherein the two first stiffening plates and the two second stiffening plates form an I-shaped stiffening rib, and the end part of the H-shaped steel beam (3) is welded on the I-shaped stiffening rib.

8. The quick-splicing type H-shaped steel concrete beam column connecting node according to claim 1, characterized in that concrete (8) is poured outside a node formed by the H-shaped steel column (1), the connecting plates (4), the stiffening members (2), the H-shaped steel beam (3) and the reinforcing ribs.