Steel member side joint

Abstract

The invention relates to the technical field of constructional engineering, in particular to a steel member side connection joint which comprises a main steel column and a box-type column connected to the side edge of the main steel column. Two connecting plates are fixedly mounted on the side edge of the main steel column, and the two connecting plates are fixedly connected with the box-type column through fasteners; wherein at least one reinforcing assembly is arranged on the inner side of the box-type column, and the shear resistance of the box-type column after side connection with the main steel column is improved through the designed reinforcing assembly. The fastening piece and the locking piece are connected through the reinforcing assembly, so that the fastening piece and the locking piece are stably connected. In the axial direction of the main steel column and the direction parallel to the connecting face, the sleeve assists in transmitting shearing force to the main steel column, and the burden of the connecting plate is reduced. In the direction perpendicular to the connecting face, the inserting rod transmits shearing force through the fillets. And the reinforcing plates and the fillets also enhance the torsion resistance of the joint so as to adapt to larger stress requirements.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a side connection node of a steel member. Background Art

[0002] Closed-section steel members, also known as box-type steel members, have been widely used in engineering structures due to their excellent torsional and shear stiffness, especially in environments with high requirements for torsional and shear resistance. However, existing closed-section steel members have obvious limitations in end connections.

[0003] Traditional closed-end steel member end connections usually use a head plate plus a connecting plate. Although this connection method can meet structural requirements to a certain extent, its torsion and shear resistance are weak, and it is difficult to achieve a completely rigid connection, which limits the performance of the member in practical applications, especially in specific scenarios that require high-strength torsion and shear resistance.

[0004] Based on the existing technology, there is no effective solution for the structure of the end connection of the member to meet the higher torsion and shear requirements. Therefore, we propose a steel member side connection node to improve the node connection stability of the existing steel members. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art such as weak torsion and shear resistance, and to propose a side connection node for a steel member.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] Design a steel member side connection node, including:

[0008] A main steel column and a box column connected to the side of the main steel column;

[0009] Two connecting plates are fixedly installed on the sides of the main steel column, and the two connecting plates are connected and fixed to the box-type column through fasteners;

[0010] Among them, at least one reinforcement component is arranged on the inner side of the box-type column, and at least one of the reinforcement components is connected to the fasteners on both sides of the box-type column and fixed to the main steel column through a locking piece.

[0011] Furthermore, the reinforcement component includes a sleeve inserted into the main steel column, a through hole is opened on the web of the main steel column, and the sleeve is inserted into the through hole, wherein a deformation component is arranged on one side of the sleeve.

[0012] Furthermore, the deformation component includes an insertion rod inserted in the sleeve, and a fixing seat is fixedly connected to the end surface of the insertion rod and the sleeve. A connecting rod is pinned to the side of the fixing seat, and a reinforcement plate is pinned between two connecting rods on the same side.

[0013] Furthermore, a hole matching the fastener is provided on the end surface of the reinforcement plate, and a spring is provided between the sleeve and the insertion rod, wherein the two upper connecting rods are configured as telescopic rods, and the two lower connecting rods are distributed in an eight-shaped structure in an initial state.

[0014] Furthermore, the locking member is a nut threadedly connected to the sleeve, and the nut is stopped on the other side of the web of the main steel column.

[0015] Furthermore, a shearing component is provided inside the sleeve, and the shearing component has a first shape and a second shape in the sleeve;

[0016] When the plunger moves, the shear assembly is driven to switch between the first configuration and the second configuration.

[0017] Furthermore, the anti-shear assembly includes a plurality of receiving grooves provided on the outer shaft end surface of the sleeve, and ribs are provided in the receiving grooves;

[0018] Among them, an inclined groove is opened on the end surface of the rib, and two guide rods located in the inclined groove are fixedly installed inside the accommodating groove. An interference part is also fixed at the bottom of the rib, and the end of the insertion rod contacts multiple interference parts to drive multiple ribs to move outward.

[0019] Furthermore, a compression spring is fixedly installed on the inner side of the sleeve, and the compression spring abuts against the back ends of the plurality of abutting portions away from the insertion rod;

[0020] The abutting portion comprises a plate portion and a rib portion, wherein the rib portion is supported between the plate portion and the rib strip, the plate portion is arranged obliquely, and an end portion of the insertion rod is provided with an inclined surface which fits the plate portion.

[0021] Furthermore, the ribs are inclined at 45 degrees along the axis of the sleeve, and a plurality of anti-slip teeth are spaced apart on the outer end surface of the ribs.

[0022] Furthermore, the main steel column is a closed steel section or an open steel section, and the two connecting plates are connected to the inner side or the outer side of the box-type column, wherein operation holes are also opened on the upper and lower webs of the box-type column.

[0023] The invention proposes a steel member side-joint node, which has the beneficial effect that the shear resistance of the box-type column and the main steel column after the side-joint is improved by the designed reinforcement assembly in the invention. The reinforcement assembly firmly connects the two by connecting fasteners and locking pieces. In the direction along the axis of the main steel column and parallel to the connection surface, the sleeve helps to transfer the shear force to the main steel column, reducing the burden on the connecting plate. In the direction perpendicular to the connection surface, the inserted rod transfers the shear force through the ribs. The reinforcement plate and ribs also enhance the torsion resistance of the node to adapt to greater force requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0025] Figure 2 This is a schematic diagram of the reinforcement assembly installation structure of the first embodiment of the present invention;

[0026] Figure 3 The reinforcement component of the first embodiment of the present invention is three-dimensional Figure 1 ;

[0027] Figure 4 The reinforcement component of the first embodiment of the present invention is three-dimensional Figure 2 ;

[0028] Figure 5 A top view of a reinforcement assembly according to Embodiment 1 of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the casing according to the first embodiment of the present invention;

[0030] Figure 7 for Figure 6 A schematic diagram of the enlarged structure of area A;

[0031] Figure 8 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0032] In the figure: 1. main steel column; 2. box column; 21. operation hole; 3. connecting plate; 4. fastener; 5. reinforcement component; 51. sleeve; 52. plug rod; 521. inclined surface; 53. fixed seat; 54. connecting rod; 55. reinforcement plate; 551. hole position; 56. spring; 6. locking piece; 7. shear component; 71. receiving groove; 72. rib; 73. oblique groove; 74. guide rod; 75. interference part; 751. plate part; 752. rib part; 76. compression spring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Embodiment 1

[0035] Reference Figure 1-7 An embodiment of the present invention discloses a steel member side connection node, the side connection structure is used to solve the insufficiency of the torsion and shear resistance of the current closed steel member side connection structure. Specifically, in this embodiment, the closed steel structure is lateral hinged as an example, and the side connection structure includes a main steel column 1 and a box column 2 connected to the side of the main steel column 1;

[0036] Two connecting plates 3 are fixedly installed on the side of the main steel column 1, and the two connecting plates 3 are connected and fixed to the box-type column 2 through fasteners 4, wherein the fasteners 4 described in this embodiment are set as torsion shear type high-strength bolts to improve the torsion shear resistance of the connection;

[0037] That is, in this embodiment, two connecting plates 3 are used to connect the side edges to achieve side fixation of the box-type column 2, so that the side hinging of the box-type column 2 can be realized. Of course, when a rigid connection is required, the two sides where the connecting plates 3 are not installed are fixed by welding, so that the four sides of the box-type column 2 can be fixed to achieve a rigid connection.

[0038] Reference Figure 2 , wherein at least one reinforcement component 5 is arranged on the inner side of the box-type column 2, at least one of the reinforcement components 5 is connected to the fasteners 4 on both sides of the box-type column 2, and is fixed to the main steel column 1 through a locking member 6. Of course, multiple reinforcement components 5 can be stacked to enhance the connection stability.

[0039] Reference Figure 1 , 2 It should be noted that, in this embodiment, the main steel column 1 is a closed steel section, and the two connecting plates 3 are connected to the inner side or the outer side of the box-type column 2, wherein the upper and lower webs of the box-type column 2 are also provided with operating holes 21, and the operating holes 21 are used to place nuts for connection with the fasteners 4. Preferably, the thickness of the connecting plate 3 described in this embodiment should be greater than the web thickness of the box-type column 2 by 2MM, and it is laid out and installed in place in the factory. The position of the connecting plate 3 can be inside or outside the web of the box-type column 2, and can be determined specifically according to the convenience of construction.

[0040] Reference Figure 3-5 In some embodiments, the reinforcement component 5 in the present invention includes a sleeve 51 inserted into the main steel column 1, and a through hole is opened on the web of the main steel column 1, and the sleeve 51 is inserted into the through hole, wherein a deformation component is arranged on one side of the sleeve 51, and the diameter of the specific through hole should be smaller than the outer diameter of the locking member 6. At the same time, when the deformation component is stored, it can pass through the through hole for easy installation.

[0041] Reference Figure 3 On the basis of the above implementation, the deformation component in the present invention includes an insertion rod 52 inserted in the sleeve 51, and a fixing seat 53 is fixedly connected to the end surface of the insertion rod 52 and the sleeve 51, and a connecting rod 54 is pinned to the side of the fixing seat 53, and a reinforcing plate 55 is pinned between the two connecting rods 54 on the same side.

[0042] In addition, a hole 551 matching with the fastener 4 is provided on the end surface of the reinforcing plate 55, and a spring 56 is provided between the sleeve 51 and the insertion rod 52. Figure 5 As shown, in the initial state, the reinforcing plates 55 on both sides are expanded outwards under the pull of the spring 56, so as to facilitate the installation when the entire deformation assembly enters the interior of the box-type column 2. In addition, the hole position 551 described in this embodiment is set as a nut hole, which can be directly threadedly connected with the above-mentioned fastener 4 during assembly to complete the installation;

[0043] Of course, in other embodiments, the above-mentioned hole 551 can also be set as a through hole. During assembly, the entire reinforcement component 5 is first inserted into the interior of the box-type column 2, and then the fastener 4 is penetrated through the hole 551, and finally the nut is used to lock it.

[0044] Reference Figure 5 Furthermore, in the present invention, the two upper connecting rods 54 are configured as telescopic rods, and the two lower connecting rods 54 are distributed in an eight-shaped structure in the initial state. During the transfer, the reinforcing plates 55 on both sides are opened on both sides under the action of the spring 56. Specifically, the two upper telescopic rods remain in a horizontal state, while the two lower connecting rods 54 are in an inclined state. In this state, when the fastener is connected to the reinforcing plate 55, the reinforcing plate 55 can be driven to move outward through a threaded connection. At this time, the telescopic rod is extended for adaptation, and the two lower connecting rods 54 continue to rotate under traction and pull the plug rod 52 to move toward the inside of the sleeve 51 until the reinforcing plate 55 is completely fixed by the fastener 4. At the same time, the plug rod 52 moves forward and is inserted into the sleeve 51 and triggers the shear resistance component 7.

[0045] Reference Figure 3 , 4 It should be noted that in this embodiment, the locking member 6 is a nut threadedly connected to the sleeve 51, and the nut is stopped on the other side of the web of the main steel column 1. The set nut can be used to lock the main steel column 1, thereby improving the stability of the connection.

[0046] Reference Figure 5 , 6In some embodiments, in the present invention, a shearing component 7 is further provided inside the sleeve 51, and the shearing component 7 has a first form and a second form in the sleeve 51;

[0047] When the insertion rod 52 moves, the shearing assembly 7 is driven to switch between the first state and the second state.

[0048] On the basis of the above-mentioned embodiment, the shear-resistant assembly 7 in the present invention comprises a plurality of receiving grooves 71 provided on the outer axial end surface of the sleeve 51, and a rib 72 is arranged in the receiving groove 71. Specifically, the first state described in the present invention is a state in which the rib 72 is accommodated in the receiving groove 71, and the second state is a rotation state in which the rib 72 is resisted by the insertion rod 52 and moves outward along the receiving groove 71.

[0049] Reference Figure 6 , wherein an oblique groove 73 is opened on the end surface of the rib 72, and two guide rods 74 located in the oblique groove 73 are fixedly installed inside the accommodating groove 71, and a resistance part 75 is also fixed at the bottom of the rib 72. The end of the insertion rod 52 contacts with multiple resistance parts 75 to drive multiple ribs 72 to move outward. Preferably, the accommodating groove 71 and the rib 72 described in this embodiment are both set to four to achieve support in four directions. In addition, the purpose of the rib 72 in the present invention adopting a retractable structural design is that the rib 72 can be stored in the accommodating groove 71 during installation to avoid interference when entering the perforation.

[0050] Specifically, in the present invention, the design of the sleeve 51, the plug rod 52 and the plurality of ribs 72 is used to enhance the shear resistance of the box column 2 and the main steel column 1 in three directions after the side connection, as described below:

[0051] After the two reinforcing plates 55 are connected with the fasteners 4, the two sides are fixed by force, and the ends are fixed by the locking members 6, so that the entire reinforcing assembly 5 is connected between the box column 2 and the main steel column 1 for connection;

[0052] When the box-type column 2 is subjected to the shear force along the axial direction of the main steel column 1, it is the first direction. Since the sleeve 51 is inserted into the main steel column 1, part of the shear force will be transferred to the main steel column 1 along the sleeve 51, thereby reducing the stress of the connecting plates 3 on both sides;

[0053] Similarly, when the box-type column 2 is subjected to a shear force parallel to the connection surface of the main steel column 1, it is the second direction, and part of the shear force is transmitted to the main steel column 1 along the sleeve 51, thereby reducing the stress of the connecting plates 3 on both sides;

[0054] Furthermore, when the box-type column 2 is subjected to a shear force perpendicular to the connection surface of the main steel column 1, which is the third direction, the plug rod 52 abuts against a plurality of ribs 72 at this time, that is, the plug rod 52 will transfer part of the shear force along the ribs 72 to the main steel column 1, thereby reducing the stress of the connecting plates 3 on both sides, thereby greatly improving the shear resistance of the entire connection node;

[0055] At the same time, since the reinforcement plate 55 further reinforces the sides of the connecting plate 3, and the four ribs 72 support the main steel column 1 on four sides to form a reinforcing rib structure, the torsional resistance of the entire node can be greatly enhanced after the connection, so as to achieve greater torsional and shear resistance support and meet the needs of a greater stress environment.

[0056] Reference Figure 7 Furthermore, in the present invention, a compression spring 76 is fixedly installed on the inner side of the sleeve 51, and the compression spring 76 abuts against the back ends of the plurality of abutting portions 75 away from the insertion rod 52. The compression spring 76 is used to push the plurality of ribs 72 to move forward when the insertion rod 52 abuts against the ribs 72, so as to accommodate the ribs 72 in the receiving groove 71.

[0057] Reference Figure 7 The abutment portion 75 includes a plate portion 751 and a rib portion 752 , the rib portion 752 is supported between the plate portion 751 and the rib strip 72 , the plate portion 751 is tilted, and the end of the insertion rod 52 is provided with an inclined surface 521 that fits with the plate portion 751 .

[0058] Specifically, in the present invention, the inclination angle of the plate portion 751 is set to be the same as the inclination angle of the inclined surface 521, and the designed ridge portion 752 is used to increase the force of the plate portion 751. The purpose of the inclined plate portion 751 is to transmit its reverse thrust along the inclined surface 521 to the middle of the insertion rod 52;

[0059] That is, when the insertion rod 52 pushes the plate portion 751, a reverse thrust will be generated when the rib 72 hits the main steel column 1. At this time, the reverse thrust is transmitted along the plate portion 751 to the inclined surface 521 of the insertion rod 52. At this time, the reverse thrust will be decomposed into horizontal and vertical forces. The horizontal force is transmitted along the radial direction of the insertion rod 52 and decomposed on the sleeve 51, while the vertical force is transmitted along the axial direction of the insertion rod 52. In this way, the force stability of the rib 72 and the insertion rod 52 can be improved to ensure its shear and torsion resistance in the third direction.

[0060] It should be further explained that, in the present embodiment, the rib 72 is inclined at forty-five degrees along the axis of the sleeve 51. The forty-five-degree inclination can achieve better support and force between the main steel column 1. Secondly, a plurality of anti-slip teeth are spaced apart on the outer end surface of the rib 72. The anti-slip teeth are used to enhance the force stability between the rib 72 and the ventral surface of the main steel column 1.

[0061] Embodiment 2

[0062] Reference Figure 8 In this embodiment, the similarities with the first embodiment are no longer repeated. The difference is that the main steel column 1 in this embodiment is an open steel section, including but not limited to an I-shaped steel or a U-shaped steel, and the two connecting plates 3 are connected to the inner side or the outer side of the box-type column 2, wherein an operating hole 21 is also opened on the upper and lower belly plates of the box-type column 2. Similarly, through the design of the operating hole 21, a tool entry space can be provided to facilitate the operation of the nuts inside the box-type column 2.

[0063] In summary, the reinforcement assembly 5 designed in the present invention improves the shear resistance of the box column 2 and the main steel column 1 after side connection. By connecting the fastener 4 and the locking member 6, the reinforcement assembly firmly connects the two. In the direction along the axial direction of the main steel column and parallel to the connection surface, the sleeve 51 helps to transfer the shear force to the main steel column 1, reducing the burden on the connecting plate 3. In the direction perpendicular to the connection surface, the inserted rod 52 transfers the shear force through the rib 72. The reinforcement plate 55 and the rib 72 also enhance the torsion resistance of the node to adapt to greater force requirements.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A steel member side connection node, characterized in that: include: A main steel column (1) and a box column (2) connected to the side of the main steel column (1); Two connecting plates (3) are fixedly installed on the sides of the main steel column (1), and the two connecting plates (3) are connected and fixed to the box-type column (2) via fasteners (4); At least one reinforcement component (5) is provided on the inner side of the box-type column (2), and at least one reinforcement component (5) is connected to the fasteners (4) on both sides of the box-type column (2) and is fixed to the main steel column (1) via a locking member (6).

2. A steel member side connection node according to claim 1, characterized in that: The reinforcement component (5) comprises a sleeve (51) inserted into the main steel column (1), a through hole is opened on the web of the main steel column (1), and the sleeve (51) is inserted into the through hole, wherein a deformation component is arranged on one side of the sleeve (51).

3. A steel member side connection node according to claim 2, characterized in that: The deformation component comprises an insertion rod (52) inserted into the sleeve (51), a fixing seat (53) is fixedly connected to the end surface of the insertion rod (52) and the sleeve (51), a connecting rod (54) is pin-connected to the side of the fixing seat (53), and a reinforcing plate (55) is pin-connected between two connecting rods (54) on the same side.

4. A steel member side connection node according to claim 3, characterized in that: A hole (551) matching the fastener (4) is arranged on the end surface of the reinforcing plate (55), and a spring (56) is also arranged between the sleeve (51) and the insertion rod (52), wherein the two upper connecting rods (54) are arranged as telescopic rods, and the two lower connecting rods (54) are arranged in an eight-shaped structure in an initial state.

5. The steel member side connection node according to claim 2, characterized in that: The locking member (6) is a nut threadedly connected to the sleeve (51), and the nut is stopped on the other side of the web of the main steel column (1).

6. The steel member side connection node according to claim 3, characterized in that: An anti-shear component (7) is also provided on the inner side of the sleeve (51), and the anti-shear component (7) has a first shape and a second shape in the sleeve (51); When the insertion rod (52) moves, the shearing component (7) is driven to switch between the first form and the second form.

7. A steel member side connection node according to claim 6, characterized in that: The anti-shear component (7) comprises a plurality of receiving grooves (71) formed on the outer axial end surface of the sleeve (51), and ribs (72) are arranged in the receiving grooves (71); The end surface of the rib (72) is provided with an oblique groove (73), two guide rods (74) located in the oblique groove (73) are fixedly installed inside the accommodating groove (71), and a resistance part (75) is also fixed at the bottom of the rib (72), and the end of the insertion rod (52) contacts with the plurality of resistance parts (75) to drive the plurality of ribs (72) to move outward.

8. A steel member side connection node according to claim 7, characterized in that: A compression spring (76) is also fixedly mounted on the inner side of the sleeve (51), and the compression spring (76) abuts against the back ends of the plurality of abutting portions (75) away from the insertion rod (52); The abutment portion (75) comprises a plate portion (751) and a rib portion (752), wherein the rib portion (752) is supported between the plate portion (751) and the rib strip (72), the plate portion (751) is arranged at an angle, and the end of the insertion rod (52) is provided with an inclined surface (521) which is in contact with the plate portion (751).

9. The steel member side connection node according to claim 7, characterized in that: The ribs (72) are inclined at 45 degrees along the axis of the sleeve (51), and a plurality of anti-slip teeth are spaced apart on the outer end surface of the ribs (72).

10. A steel member side connection node according to any one of claims 1 to 9, characterized in that: The main steel column (1) is a closed steel section or an open steel section, and the two connecting plates (3) are connected to the inner side or the outer side of the box-type column (2), wherein operation holes (21) are also provided on the upper and lower webs of the box-type column (2).

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