Steel structure joint in full bolted connection

Abstract

The utility model provides a steel structure node in full bolt connection, which relates to the technical field of steel structure connection nodes, is particularly suitable for connection of an I-shaped steel upright post and an I-shaped steel beam in an assembly type steel structure building, and comprises the I-shaped steel upright post, two I-shaped steel longitudinal beams and two I-shaped steel cross beams, and the two cross beams are symmetrically arranged on two sides of a flange plate and a web plate of the I-shaped steel stand column respectively. The joints adopt connecting pieces which are symmetrically arranged up and down and comprise angle steel and channel steel, the angle steel is connected with the longitudinal beams, the channel steel is connected with the cross beams, and loads are transmitted through bolts. The protruding part of the flange plate at the far end of the channel steel and the extending part of the angle steel are fixed through the U-shaped clamping piece, the U-shaped clamping piece comprises a U-shaped steel clamping piece and a pressure distribution plate, the bolt pre-tightening force can be evenly dispersed, and the node rigidity and the anti-sliding capacity are enhanced. Full-bolt connection of steel structure nodes is achieved, welding thermal stress influence is avoided, construction is fast, node reliability is high, and the steel structure node is suitable for fabricated buildings and steel structure engineering.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure connecting joint, in particular to a full bolt connecting steel structure joint. BACKGROUND

[0002] Although the development of the fabricated steel structure building in China is getting faster and faster, the joint connecting problem has been a difficult problem in the steel structure construction. The factory welding, the site welding and the bolt welding connection all need various welding of the original components. These connecting methods not only have slow construction speed, low component reuse rate and serious site pollution, so it is more and more important to solve the profile steel joint connecting problem. CONTENT OF THE INVENTION

[0003] In order to solve the square steel pipe column and I-shaped steel beam joint connecting problem in the current steel structure construction, the present application provides a full bolt connecting steel structure joint, which adopts the following technical scheme:

[0004] A full bolt connecting steel structure joint, which comprises an I-shaped steel column and an I-shaped steel beam, four I-shaped steel beams are arranged around the I-shaped steel column, and the I-shaped steel column comprises two I-shaped steel longitudinal beams and two I-shaped steel transverse beams, the two I-shaped steel longitudinal beams are symmetrically arranged on the two sides of the flange plate of the I-shaped steel column and are perpendicular to the flange plate of the I-shaped steel column, and the two I-shaped steel transverse beams are symmetrically arranged on the two sides of the web plate of the I-shaped steel column and are perpendicular to the web plate of the I-shaped steel column, the steel structure joint further comprises a connecting piece symmetrically arranged above and below, the connecting piece comprises a channel steel and an angle steel, the channel steel and the angle steel are both two, the two angle steels are respectively installed on the outer side of the flange plate of the I-shaped steel column, the two channel steels are respectively installed on the two sides of the web plate of the I-shaped steel column, the two flange plates of the channel steel are in contact with the inner sides of the flange plates of the I-shaped steel column on the two sides, the middle part of one side edge of the angle steel is fixed on the flange plate of the I-shaped steel longitudinal beam through a high-strength bolt connecting pair, the other side edge passes through the flange plate of the I-shaped steel column and is fixed with the flange plate of the channel steel through a high-strength bolt connecting pair, and the web plate of the channel steel is fixed with the flange plate of the I-shaped steel transverse beam through a high-strength bolt connecting pair.

[0005] Further, the length of each angle steel is consistent with the distance from the distal end of the two channel steels.

[0006] Further, one end of the channel steel away from the web plate of the I-shaped steel column extends outward, and the two ends of each angle steel are respectively fixed with the protruding part of the flange plate of the channel steel through a U-shaped clamping piece.

[0007] Further, the U-shaped fastening member comprises a U-shaped steel clamp and a pressure distribution plate, the U-shaped steel clamp is respectively clamped on the outside of the protruding part of the flange plate of the channel steel and the side of the angle steel, and the U-shaped steel clamp is clamped through a high-strength bolt connection pair, and the pressure distribution plate is arranged between the protruding part of the flange plate of the channel steel and the side of the angle steel, and is used for uniformly dispersing the bolt pre-tightening force.

[0008] Through the technical scheme, the load of the I-shaped steel beam is transmitted to the I-shaped steel column through the angle steel and the channel steel, the stress path is short and uniform, the stress concentration phenomenon is reduced, the combination of the U-shaped fastening member and the bolt connection ensures the reliable clamping of the channel steel and the angle steel, further improves the overall rigidity and anti-sliding capacity of the node, the connecting member adopts a full bolt connection mode, the node does not need to be welded on site, and is fast and convenient to install, and has good maintainability. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 is a schematic view of an embodiment of the utility model;

[0010] Figure 2 is Figure 1 A local enlarged view of A;

[0011] Figure 3 is a position schematic view of an I-shaped steel column and an I-shaped steel beam in the embodiment of the utility model;

[0012] Figure 4 is a position schematic view of an angle steel and a channel steel in the embodiment of the utility model.

[0013] Wherein, the reference signs are: 1, I-shaped steel column; 2, I-shaped steel longitudinal beam; 3, I-shaped steel transverse beam; 4, angle steel; 5, channel steel; 6, U-shaped steel plate clamp; 7, pressure distribution plate. DETAILED DESCRIPTION

[0014] In the following, the technology in the embodiments of the utility model will be clearly and completely described by combining the drawings in the embodiments of the utility model; obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts should belong to the protection scope of the utility model. It should be noted that, in the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0015] With reference to Figures 1 to 4 , the embodiment provides a full bolt connected steel structure node, which is arranged at the connecting position of an I-shaped steel column 1 and an I-shaped steel beam, such as Figure 3As shown, the I-shaped steel column 1 is provided with four I-shaped steel beams around, including two I-shaped steel longitudinal beams 2 and two I-shaped steel transverse beams 3, wherein the two I-shaped steel longitudinal beams 2 are symmetrically arranged on the two sides of the flange plate of the I-shaped steel column 1 and are perpendicular to the flange plate of the I-shaped steel column 1, and the two I-shaped steel transverse beams 3 are symmetrically arranged on the two sides of the web plate of the I-shaped steel column 1 and are perpendicular to the web plate of the I-shaped steel column 1, and the steel structure node further comprises connecting pieces symmetrically arranged upward and downward, such as Figure 1 、 Figure 4 As shown, the connecting piece comprises two channel steels 5 and two angle steels 4, the two angle steels 4 are respectively installed on the outer side of the flange plate of the I-shaped steel column 1, and the two channel steels 5 are respectively installed on the two sides of the web plate of the I-shaped steel column 1, the two side flange plates of the channel steel 5 are in contact with the inner side of the flange plate on the two sides of the I-shaped steel column 1, one side edge of the angle steel 4 is fixed on the flange plate of the I-shaped steel longitudinal beam 2 through a high-strength bolt connection pair, and the other side edge passes through the flange plate of the I-shaped steel column 1 and is fixed with the flange plate of the channel steel 5 through a high-strength bolt connection pair, and the web plate of the channel steel 5 is fixed with the flange plate of the I-shaped steel transverse beam 3 through a high-strength bolt connection pair.

[0016] Specifically, as shown in Figure 4 The length of each angle steel 4 is consistent with the distance from the two distal ends of the channel steel 5.

[0017] Specifically, as shown in Figure 1 、 Figure 4 The end of the channel steel 5 away from the web plate of the I-shaped steel column 1 extends outward, and the two ends of each angle steel 4 are respectively fixed with the protruding part of the flange plate of the channel steel 5 through a U-shaped tightening piece.

[0018] Specifically, as shown in Figure 2 The U-shaped tightening piece comprises a U-shaped steel clamp 6 and a pressure distribution plate 7, the U-shaped steel clamp 6 is respectively clamped on the outer side of one side of the angle steel 4 and the protruding part of the flange plate of the channel steel 5, and the U-shaped steel clamp 6 is clamped through a high-strength bolt connection pair, and the pressure distribution plate 7 is arranged between one side of the angle steel 4 and the protruding part of the flange plate of the channel steel 5, and is used for uniformly distributing the bolt pre-tightening force.

[0019] The working principle of the embodiment is as follows:

[0020] The full bolt connection steel structure node of the embodiment realizes the transmission of overall force and the coordination of stress through the connecting piece between the I-shaped steel column 1 and the I-shaped steel beam (including the I-shaped steel longitudinal beam 2 and the I-shaped steel transverse beam 3). The working principle of the node is as follows:

[0021] When subjected to loads, the longitudinal beams 2 and transverse beams 3 of the I-beams generate bending moments, shear forces, and axial forces. These forces are transmitted to the angle steel 4 through the flanges of the longitudinal beams 2, and then from the angle steel 4 to the flanges of the I-beam columns 1 via bolt connections. The forces on the transverse beams 3 are transmitted to the web of the channel steel 5 through their flanges, and then from the channel steel 5 to the web of the I-beam columns 1 via bolt connections.

[0022] The symmetrical arrangement of angle steel 4 and channel steel 5 ensures a uniform distribution of force. The connection between channel steel 5 and the I-beam crossbeam 3 effectively shares the shear force of the crossbeam and transmits it to the I-beam column 1 through the web. The two side flanges of channel steel 5 are in close contact with the inner flanges of the I-beam column 1, forming a strong contact surface through bolted connections, ensuring node stability.

[0023] The end of the channel steel 5 furthest from the web of the I-beam column 1 extends outward, and the protruding part is connected to the extended part of the angle steel 4 by a U-shaped clamp (including a U-shaped steel clamp 6 and a pressure distribution plate 7). The U-shaped steel clamp 6 clamps the channel steel 5 and the angle steel 4 with bolts, further enhancing the rigidity of the joint; the pressure distribution plate 7 can evenly distribute the preload of the bolts, avoiding local stress concentration, thereby improving the joint's anti-slip ability and long-term reliability.

[0024] Angle steel 4 connects to the I-beam longitudinal beam 2 on one side and to the channel steel 5 on the other, forming a rigid whole with the channel steel 5 and the flange plate of the I-beam column 1, which can jointly bear the shear force and bending moment of the longitudinal beam 2. The connection between the channel steel 5 and the I-beam crossbeam 3 mainly bears the shear force transmission of the crossbeam, and its web is connected to the crossbeam flange plate with high-strength bolts to ensure shear resistance.

[0025] Overall, the symmetrical arrangement of the connectors ensures the overall symmetry and stability of the nodes. The use of bolted connections not only ensures reliable force transfer but also simplifies construction, reduces the impact of welding thermal stress on structural performance, and facilitates subsequent disassembly and maintenance.

Claims

1. A fully bolted steel structure joint, characterized in that, The steel structure node comprises an I-shaped steel column and I-shaped steel beams, four I-shaped steel beams are arranged around the I-shaped steel column, the four I-shaped steel beams comprise two I-shaped steel longitudinal beams and two I-shaped steel transverse beams, the two I-shaped steel longitudinal beams are symmetrically arranged on the two sides of the flange plate of the I-shaped steel column and are perpendicular to the flange plate of the I-shaped steel column, and the two I-shaped steel transverse beams are symmetrically arranged on the two sides of the web plate of the I-shaped steel column and are perpendicular to the web plate of the I-shaped steel column, the steel structure node further comprises connecting pieces which are symmetrically arranged upwards and downwards, the connecting pieces comprise channel steels and angle steels, the channel steels and the angle steels are both two, the two angle steels are respectively arranged on the outer sides of the flange plates of the I-shaped steel column, the two channel steels are respectively arranged on the two sides of the web plate of the I-shaped steel column, the two side flange plates of the channel steels are in contact with the inner sides of the two side flange plates of the I-shaped steel column, the middle part of one side edge of the angle steel is fixed on the flange plate of the I-shaped steel longitudinal beam through a high-strength bolt connecting pair, the other side edge passes through the flange plate of the I-shaped steel column and is fixed to the flange plate of the channel steel through a high-strength bolt connecting pair, and the web plate of the channel steel is fixed to the flange plate of the I-shaped steel transverse beam through a high-strength bolt connecting pair.

2. A fully bolted steel structure joint according to claim 1, characterized in that, The length of each angle steel is consistent with the distance between the two distal ends of the channel steels.

3. A fully bolted steel structure joint according to claim 1, characterized in that, The distal end of the channel steel away from the web plate of the I-shaped steel column extends outward, and the two ends of each angle steel are respectively fixed to the protruding part of the flange plate of the channel steel through U-shaped fastening pieces.

4. A fully bolted steel structure joint according to claim 3, characterized in that, The U-shaped fastening pieces comprise U-shaped steel clamps and pressure distribution plates, the U-shaped steel clamps are respectively clamped on the outer sides of the protruding part of the flange plate of the channel steel and one side of the angle steel, the U-shaped steel clamps are clamped through high-strength bolt connecting pairs, and the pressure distribution plates are arranged between the protruding part of the flange plate of the channel steel and one side of the angle steel and are used for uniformly distributing bolt pre-tightening force.

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