CN209874078U - Fast-spliced H-shaped steel concrete column and reinforced concrete beam connecting node - Google Patents

Abstract

A fast-split H-shaped steel concrete column and reinforced concrete beam connection node, including an H-shaped steel column, a connecting plate and a reinforcing bar; the surface of any flange of the H-shaped steel column is fixed in parallel with two connecting plates, and one of the H-shaped steel columns Two connecting plates are arranged in parallel on the side web; several threaded holes are arranged on the connecting plates, and several reinforcing ribs are vertically arranged on all 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-split H-shaped steel concrete column and reinforced concrete beam connection node

technical field

The utility model belongs to the technical field of beam-column connection nodes, in particular to a fast-assembled H-shaped steel concrete column-reinforced concrete beam 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 column and reinforced concrete beam 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 column and reinforced concrete beam connection node, including an H-shaped steel column, a connecting plate and a reinforcing bar; the surface of any flange of the H-shaped steel column is fixed in parallel with two connecting plates, and one of the H-shaped steel columns Two connecting plates are arranged in parallel on the side web; several threaded holes are arranged on the connecting plates, and several reinforcing ribs are vertically arranged on all 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 connecting plate on the flange and the connecting plate on the web are on the same plane.

Further, concrete is poured on the outside of the node formed by the H-shaped steel column, the connecting plate and the reinforcing bar.

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

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 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.

In the method for connecting positive and negative wire sleeves of the utility model, 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 overall structure diagram of the utility model;

Fig. 2 is the structural diagram of the utility model H-shaped steel column;

Fig. 3 is the structural diagram of the connecting plate of the present invention;

Fig. 4 is the schematic diagram of installation of the utility model connecting plate;

Fig. 5 is the utility model stud connection diagram;

Fig. 6 is a schematic diagram of the assembly of the steel bar connector and the steel bar of the present invention;

Fig. 7 is the schematic diagram of pouring concrete of the utility model.

Among them: 1-H-shaped steel column; 2-Connecting plate; 3-Stud stud; 4-Rebar connector (sleeve); 5-Reinforcement bar; 6-Concrete.

Detailed ways

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

Please refer to Fig. 1 to Fig. 7, a fast-split H-shaped steel concrete column and reinforced concrete beam connection node, including H-shaped steel column 1, connecting plate 2 and reinforcing rib; the surface of any flange of H-shaped steel column 1 is fixed in parallel There are two connecting plates 2, two connecting plates 2 are arranged in parallel on one side of the web of the H-shaped steel column 1; several threaded holes are arranged on the connecting plates 2, and several reinforcing ribs are arranged vertically on all the connecting plates 2.

The reinforcing ribs include double-ended studs 3, steel bar connectors 4 and steel bars 5; Connection, the other end of the double-ended stud 3 is threaded with the connecting plate 2; the other end of the steel bar connector 4 is threaded with the steel bar 5.

The double-ended studs 3 include a first stud and a second stud, the first stud is longer than the second stud, and two adjacent double-ended studs on the connecting plate 2 have different lengths.

The threaded holes on the connecting plate 2 are single or double rows, and the distance between two adjacent threaded holes in the same row is equal.

The connecting plate on the web of the H-shaped steel column 1 is arranged perpendicular to the upper and lower flanges, and the end of the connecting plate 2 is welded to the upper and lower flanges, and the connecting plate 2 is welded to the web.

The connecting plate 2 on the flange and the connecting plate 2 on the web are on the same plane.

Concrete 6 is poured on the outside of the node formed by the H-shaped steel column, the connecting plate and the reinforcement.

Assembly process:

A quick-assembled H-shaped steel concrete column and a reinforced concrete beam pass through a connection node, and all its components are prefabricated in a factory, and assembled and connected after being transported to a construction site. As shown in Figure 1, it is characterized in that:

1. The connecting plate 2 is welded on the H-shaped steel column 1. The connecting plate 2 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 3 and 4.

2. The double-ended stud 3 is screwed together with the threaded hole of the connecting plate 2. As shown in Figure 5.

3. Through the sleeve 4, screw the stud 3 and the steel bar 5 together. One end of the steel bar 5 is threaded; the connecting positions of the double-ended stud 3 and the steel bar 5 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 4 should meet the requirements of the "Technical Regulations for Mechanical Connection of Steel Bars" (JGJ107-2010) regarding connection joints. As shown in Figure 6.

4. Binding column longitudinal reinforcement, beam stirrups and beam stress reinforcement, and finally pouring concrete. As shown in Figure 7.

Claims (7)

1. a fast-split type H-shaped steel concrete column and reinforced concrete beam connection node, is characterized in that, comprises H-shaped steel column (1), connecting plate (2) and stiffener; H-shaped steel column (1) any one flange Two connecting plates (2) are fixed parallel to the surface, and two connecting plates (2) are arranged in parallel on one side of the web of the H-shaped steel column (1); several threaded holes are arranged on the connecting plate (2), and all connecting A number of reinforcing ribs are arranged vertically on the plates (2). 2. A kind of fast joint type H-shaped steel concrete column and reinforced concrete beam connection node according to claim 1, is characterized in that, reinforcement comprises double-ended stud (3), steel bar connector (4) and steel bar (5 ); the steel bar connector (4) is sleeve-shaped, and positive and negative threads are arranged in the sleeve, and one end of the double-ended stud (3) is threadedly connected with one end of the steel bar connector (4), and the double-ended stud (3) The other end of the connecting plate (2) is threaded; the other end of the reinforcement connector (4) is threaded with the reinforcement (5). 3. A kind of fast joint type H-shaped steel concrete column and reinforced concrete beam connection node according to claim 2, it is characterized in that, double-ended stud (3) comprises the first stud and the second stud, the first stud The column is longer than the second stud, and the two adjacent studs on the connecting plate (2) have different lengths. 4. A kind of quick assembly type H-shaped steel concrete column and reinforced concrete beam connection node according to claim 1, characterized in that, the threaded holes on the connecting plate (2) are single row or double row, and two adjacent rows of the same row The threaded holes are equally spaced. 5. A kind of fast joint type H-shaped steel concrete column and reinforced concrete beam connection node according to claim 1, it is characterized in that, the connecting plate on the web of H-shaped steel column (1) is arranged perpendicular to the upper and lower flanges, and the connection The end of the plate (2) is welded to the upper and lower flanges, and the connecting plate (2) is welded to the web. 6. A kind of fast joint type H-shaped steel concrete column and reinforced concrete beam connecting node according to claim 1, characterized in that, the connecting plate (2) on the flange and the connecting plate (2) on the web are on the same flat. 7. A kind of quick joint type H-shaped steel-concrete column and reinforced concrete beam connection node according to claim 1, characterized in that, the outside of the node formed by the H-shaped steel column, connecting plate and reinforcing bar is poured with concrete (6).