Rigid connection node of large-span box beam and box column

Abstract

The utility model relates to a rigid connection node for a large-span box beam and a box column. The rigid connection node comprises the box column, a short box beam and a long box beam, wherein the box-type column is vertically arranged, the first end of the short box-type beam is fixedly arranged on the box-type column, and the second end of the long box-type beam is connected to the second end of the short box-type beam; a connecting plate is fixedly arranged on an upper flange plate at the second end of the short box beam, a lug plate is fixedly arranged on an upper flange plate at the first end of the long box beam, the first end of the lug plate is fixedly arranged on the long box beam, the second end of the lug plate extends out of the end of the long box beam, and the second end of the lug plate is connected with the connecting plate through a bolt assembly. A lining plate is fixedly arranged on the inner wall of the first end of the long box beam, the first end of the lining plate is fixedly arranged on the inner wall of the long box beam, and the second end of the lining plate extends out of the end of the long box beam by a preset length. According to the rigid connection joint of the large-span box beam and the box column, the butt joint mode of the box column and the box beam can be optimized, installation is rapid, the construction cost can be saved, and the construction quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building installation engineering, and more specifically, to a rigid connection node between a large-span box beam and a box column. Background Art

[0002] During the construction of steel structure buildings, there are a large number of rigid connection nodes between box beams and box columns. Especially for the connection between large-span box beams and box columns, it is usually necessary to connect a short box beam horizontally to the box column and then connect a long box beam in the air.

[0003] The box-shaped steel beam is composed of an upper flange plate, a lower flange plate and two web plates on both sides. When two box-shaped steel beams are butt-jointed at high altitude, the existing technology is to reserve a post-welding plate on the upper flange plate, and then set a connecting plate to connect them by bolts after opening holes on the left and right web plates. After welding, the connecting plate needs to be removed, which increases the construction cost. In addition, the opening of the web plate of the box-shaped steel beam will cause the loss of the web section, affecting the structural strength and not conducive to the control of the construction quality of the project. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a rigid connection node between a long-span box beam and a box column, aiming to solve the problems existing in the prior art.

[0005] According to the utility model, a long-span box beam and box column rigid connection node is provided, which comprises: a box column, a short box beam and a long box beam; wherein,

[0006] The box column is arranged vertically, the first end of the short box beam is fixed on the box column, and the second end of the long box beam is connected to the second end of the short box beam;

[0007] A connecting plate is fixedly provided on the upper flange plate at the second end of the short box beam, and an ear plate is fixedly provided on the upper flange plate at the first end of the long box beam, wherein the first end of the ear plate is fixedly provided on the long box beam, the second end of the ear plate extends out of the end of the long box beam, and the second end of the ear plate is connected to the connecting plate via a bolt assembly;

[0008] A lining plate is fixedly arranged on the inner wall of the first end of the long box beam, the first end of the lining plate is fixedly arranged on the inner wall of the long box beam, and the second end of the lining plate extends out of the end of the long box beam by a preset length.

[0009] Preferably, the connecting plate and the second end of the ear plate are respectively provided with two bolt holes, and the second end of the ear plate is connected to the connecting plate via two groups of bolt assemblies.

[0010] Preferably, a hoisting hole is provided on the ear plate, and the hoisting hole is located at the first end of the ear plate.

[0011] Preferably, the number of the connecting plates and the number of the ear plates are two respectively, the two connecting plates are arranged at intervals along the width direction of the short box beam, the two ear plates are arranged at intervals along the width direction of the long box beam, and the positions of the two ear plates on the upper flange plate of the long box beam correspond to the positions of the two connecting plates on the upper flange plate of the short box beam.

[0012] Preferably, a first inner partition is provided in the short box beam, and the connecting plate is located directly above the first inner partition;

[0013] A second inner partition is arranged in the long box beam, and the ear plate is located directly above the second inner partition.

[0014] Preferably, the distance between the first inner baffle and the second end surface of the short box beam is 120-180 mm, and the distance between the second inner baffle and the first end surface of the long box beam is 120-180 mm.

[0015] Preferably, the first inner baffle plate is connected to the short box beam by means of disconnection welding, and the second inner baffle plate is connected to the long box beam by means of disconnection welding.

[0016] Preferably, the width of the second end of the ear plate is smaller than the width of the first end, and a preset gap is provided between the lower end surface of the second end of the ear plate and the upper flange plate of the long box beam.

[0017] Preferably, two horizontal inner partitions are arranged in the box column at intervals, and the two horizontal inner partitions respectively correspond to the positions of the upper flange plate and the lower flange plate of the short box beam.

[0018] Preferably, the first end of the short box beam is fixedly connected to the box column by welding.

[0019] The large-span box beam and box column rigid connection node provided by the utility model is provided with a short box beam on the box column, and a connection plate and an ear plate are respectively provided on the upper flange plates of the short box beam and the long box beam, and the connection plate and the ear plate can be connected by bolts. After the connection is completed, the lifting machinery can be removed to weld the short box beam and the long box beam, and the ear plate on the long box beam can also be used as a lifting ear. The large-span box beam and box column rigid connection node can optimize the docking mode of the box column and the box beam, is quick to install, can save construction costs, and ensure construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings.

[0021] Figure 1 A structural schematic diagram of a rigid connection node between a long-span box beam and a box column according to an embodiment of the utility model is shown.

[0022] Figure 2 A schematic structural diagram is shown before the short box beam and the long box beam are connected in a rigid connection node between a long-span box beam and a box column according to an embodiment of the utility model.

[0023] In the figure: 1. box column; 11. horizontal inner partition; 2. short box beam; 21. first inner partition; 3. long box beam; 31. second inner partition; 4. connecting plate; 5. ear plate; 51. lifting hole; 6. lining plate. DETAILED DESCRIPTION

[0024] Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same elements are represented by the same or similar reference numerals. For the sake of clarity, the various parts in the accompanying drawings are not drawn to scale.

[0025] The utility model provides a rigid connection node between a long-span box beam and a box column 1, see Figure 1 and Figure 2 The rigid connection node between the long-span box beam and the box column 1 includes: a box column 1, a short box beam 2 and a long box beam 3; wherein the box column 1 is vertically arranged, the first end of the short box beam 2 is fixedly arranged on the box column 1, and the second end of the long box beam 3 is connected to the second end of the short box beam 2; a connecting plate 4 is fixedly arranged on the upper flange plate of the second end of the short box beam 2, and an ear plate 5 is fixedly arranged on the upper flange plate of the first end of the long box beam 3, the first end of the ear plate 5 is fixedly arranged on the long box beam 3, the second end of the ear plate 5 extends out of the end of the long box beam 3, and the second end of the ear plate 5 is connected to the connecting plate 4 by a bolt assembly; a lining plate 6 is fixedly arranged on the inner wall of the first end of the long box beam 3, the first end of the lining plate 6 is fixedly arranged on the inner wall of the long box beam 3, and the second end of the lining plate 6 extends out of the preset length of the end of the long box beam 3.

[0026] Specifically, the box column 1 and the box beam are composed of two flange plates arranged in parallel and two web plates connected between the flange plates. The bottom of the box column 1 is used to connect to the foundation to support the box beam. For a long-span box beam, it is usually composed of a combination of multiple box beams. In this application, a short box beam 2 is arranged on the box column 1, and a long box beam 3 is connected to the short box beam 2, thereby realizing the connection between the long-span box beam and the box column 1. In order to facilitate the construction of the connection between the short box beam 2 and the long box beam 3, the present application arranges a connecting plate 4 on the upper flange plate of the short box beam 2, and an ear plate 5 on the upper flange plate of the long box beam 3. When the long box beam 3 is connected to the short box beam 2, the long box beam 3 is lifted by a lifting machinery and connected to the short box beam 2. The connection and fixation between the long box beam 3 and the short box beam 2 can be achieved by connecting the connecting plate 4 and the ear plate 5 through a bolt assembly. After the ear plate 5 and the connecting plate 4 are connected by bolts, the lifting machinery can be removed and the joint between the long box beam 3 and the short box beam 2 can be welded to avoid occupying the lifting machinery for a long time. By arranging a lining plate 6 on the inner wall of the end of the long box beam 3, the lining plate 6 is extended to a preset length of the end of the long box beam 3. When the long box beam 3 is butt-jointed with the short box beam 2, the portion of the lining plate 6 extending from the end of the long box beam 3 can be inserted into the short box beam 2 and fit on the inner wall of the short box beam 2. Later, when welding the short box beam 2 to the long box beam 3, the lining plate 6 can support the weld instead of directly hot-melting the welded connection, thereby controlling welding deformation to a certain extent and ensuring the stability and welding quality of the short box beam 2 and the long box beam 3 after welding.

[0027] In this embodiment, the connecting plate 4 and the ear plate 5 are both made of steel plates, and the connecting plate 4 and the ear plate 5 are respectively fixedly connected to the upper flange plate of the short box beam 2 and the upper flange plate of the long box beam 3 by welding. The second ends of the connecting plate 4 and the ear plate 5 are respectively provided with two bolt holes, and the second end of the ear plate 5 is connected to the connecting plate 4 by two sets of bolt assemblies, so as to ensure the connection strength and stability. In this embodiment, the number of the connecting plate 4 and the ear plate 5 is two, respectively, and the two connecting plates 4 are arranged at intervals along the width direction of the short box beam 2, and the two ear plates 5 are arranged at intervals along the width direction of the long box beam 3, and the positions of the two ear plates 5 on the upper flange plate of the long box beam 3 correspond to the positions of the two connecting plates 4 on the upper flange plate of the short box beam 2. Specifically, the spacing distance between the two connecting plates 4 is consistent with the spacing distance between the two ear plates 5. When the two ear plates 5 are connected to the two connecting plates 4, the first sides of the two ear plates 5 are respectively attached to the second sides of the two connecting plates 4; or, the spacing distance between the outer sides of the two connecting plates 4 is consistent with the spacing distance between the inner sides of the two ear plates 5. When the two ear plates 5 are connected to the two connecting plates 4, the inner sides of the two ear plates 5 are respectively attached to the outer sides of the two connecting plates 4.

[0028] Furthermore, a hoisting hole 51 is provided on the ear plate 5, and the hoisting hole 51 is located at the first end of the ear plate. When hoisting the long box beam 3, a hook or a hoisting shackle can be connected to the hoisting hole 51 of the ear plate 5, so as to achieve stable hoisting of the long box beam 3. In specific implementation, ear plates 5 are provided at both ends of the long box beam 3, and hoisting holes 51 are provided on the ear plates 5. During hoisting, two hoisting wire ropes of equal length can be used for hoisting, so as to ensure that the hoisted long box beam 3 can remain horizontal, which is convenient for docking with the short box beam 2.

[0029] Furthermore, the short box beam 2 is provided with a first inner partition 21, and the connecting plate 4 is located directly above the first inner partition 21; the long box beam 3 is provided with a second inner partition 31, and the ear plate 5 is located directly above the second inner partition 31. The first inner partition 21 and the second inner partition 31 are both rectangular steel plates. The first inner partition 21 is connected to the short box beam 2 by means of a break welding method, and the second inner partition 31 is connected to the long box beam 3 by means of a break welding method. The use of break welding can reduce the amount of welding, and the participating stress after welding will also be reduced, thereby reducing the welding deformation of the box beam. By respectively providing the first inner partition 21 and the second inner partition 31 in the short box beam 2 and the long box beam 3, it can be used to strengthen the node and ensure the cross-sectional size, and at the same time, it can enhance the strength and stability of the box beam, improve the connection strength of the welding connection between the connecting plate 4 and the ear plate 5, avoid stress deformation caused by welding, and enable the box beam to better bear the load. Preferably, the distance between the first inner baffle 21 and the second end face of the short box beam 2 is 120-180 mm, and the distance between the second inner baffle 31 and the first end face of the long box beam 3 is 120-180 mm. In this embodiment, the distance between the first inner baffle 21 and the second end face of the short box beam 2 is 150 mm, and the distance between the second inner baffle 31 and the first end face of the long box beam 3 is 150 mm.

[0030] Furthermore, the width of the second end of the ear plate 5 is smaller than the width of the first end, and a preset gap is provided between the lower end surface of the second end of the ear plate 5 and the upper flange plate of the long box beam 3. With such a configuration, after the long box beam 3 and the short box beam 2 are butt-jointed, a gap is left between the ear plate 5 and the butt joint, which facilitates welding at the butt joint of the box beam. Preferably, after the ear plate 5 and the connecting plate 4 are connected and fixed by a bolt assembly, a welding gap is left at the butt joint of the long box beam 3 and the short box beam 2, which facilitates welding at the butt joint of the box beam, helps the solder to penetrate into the joint during welding, ensures that the weld can be fully melted, ensures the integrity and firmness of the weld, and improves the structural strength of the box beam after connection.

[0031] Furthermore, two horizontal inner baffles 11 are arranged at intervals in the box column 1, and the two horizontal inner baffles 11 respectively correspond to the positions of the upper flange plate and the lower flange plate of the short box beam 2. In this embodiment, the first end of the short box beam 2 is fixedly connected to the box column 1 by welding, and the upper flange plate and the lower flange plate of the short box beam 2 respectively correspond to the two horizontal inner baffles 11 arranged at intervals in the box column 1, which can ensure the strength and stability of the short box beam 2 after welding with the box column 1, and can reduce welding deformation.

[0032] The construction method of the rigid connection node between the long-span box beam and the box column is as follows: After the short box beam and the box column are manufactured in the factory, the short box beam and the box column are welded together to form a whole, and the connecting plate and the first inner partition on the short box beam are assembled and welded in place, and then transported to the site for installation, which reduces the workload of on-site welding and reduces the difficulty of operation. The long box beam is also prefabricated in the factory. After the long box beam is manufactured in the factory, the second inner partition, the ear plate and the lining plate are assembled and welded to the preset position of the long box beam. Among them, the bolt holes on the connecting plate and the ear plate, as well as the lifting holes on the ear plate are opened in advance. During on-site installation, after the vertical installation of the box column is completed, the long box beam is lifted by a lifting machinery. During lifting, it can be connected to the lifting hole of the ear plate through the lifting wire rope. The ear plate is also used as a lifting ear. The long box beam is lifted by the machinery and moved to connect with the short box beam. When lifting into place, the ear plate and the connecting plate on the short box beam are bolted and calibrated into place. After completion, the lifting machinery can be removed and welding personnel are arranged to perform welding. The butt welds between the long box beam and the short box beam are all full penetration first-level welds.

[0033] In summary, the long-span box beam and box column rigid connection node provided by the utility model is provided with a short box beam on the box column, and a connecting plate and an ear plate are respectively provided on the upper flange plates of the short box beam and the long box beam, and the connecting plate and the ear plate can be connected by bolts. After the connection is completed, the lifting machinery can be removed to weld the short box beam and the long box beam, and the ear plate on the long box beam can also be used as a lifting ear. The long-span box beam and box column rigid connection node can optimize the docking mode of the box column and the box beam, is quick to install, can save construction costs, and ensure construction quality.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0035] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A rigid connection node between a long-span box beam and a box column, characterized in that: include: Box columns, short box beams and long box beams; among them, The box column is arranged vertically, the first end of the short box beam is fixed on the box column, and the second end of the long box beam is connected to the second end of the short box beam; A connecting plate is fixedly provided on the upper flange plate at the second end of the short box beam, and an ear plate is fixedly provided on the upper flange plate at the first end of the long box beam, wherein the first end of the ear plate is fixedly provided on the long box beam, the second end of the ear plate extends out of the end of the long box beam, and the second end of the ear plate is connected to the connecting plate via a bolt assembly; A lining plate is fixedly arranged on the inner wall of the first end of the long box beam, the first end of the lining plate is fixedly arranged on the inner wall of the long box beam, and the second end of the lining plate extends out of the end of the long box beam by a preset length.

2. The long-span box beam and box column rigid connection node according to claim 1 is characterized in that: The second ends of the connecting plate and the ear plate are respectively provided with two bolt holes, and the second end of the ear plate is connected to the connecting plate via two sets of bolt assemblies.

3. The long-span box beam and box column rigid connection node according to claim 1 is characterized in that: A hoisting hole is provided on the ear plate, and the hoisting hole is located at the first end of the ear plate.

4. The long-span box beam and box column rigid connection node according to claim 1, characterized in that: The number of the connecting plates and the number of the ear plates are two respectively, the two connecting plates are arranged at intervals along the width direction of the short box beam, the two ear plates are arranged at intervals along the width direction of the long box beam, and the positions of the two ear plates on the upper flange plate of the long box beam correspond to the positions of the two connecting plates on the upper flange plate of the short box beam.

5. The long-span box beam and box column rigid connection node according to claim 1, characterized in that: A first inner partition is provided in the short box beam, and the connecting plate is located directly above the first inner partition; A second inner partition is arranged in the long box beam, and the ear plate is located directly above the second inner partition.

6. The long-span box beam and box column rigid connection node according to claim 5, characterized in that: The distance between the first inner baffle and the second end surface of the short box beam is 120-180 mm, and the distance between the second inner baffle and the first end surface of the long box beam is 120-180 mm.

7. The long-span box beam and box column rigid connection node according to claim 5, characterized in that: The first inner baffle plate is connected to the short box beam by means of disconnection welding, and the second inner baffle plate is connected to the long box beam by means of disconnection welding.

8. The long-span box beam and box column rigid connection node according to claim 1, characterized in that: The width of the second end of the ear plate is smaller than that of the first end, and a preset gap is provided between the lower end surface of the second end of the ear plate and the upper flange plate of the long box beam.

9. The long-span box beam and box column rigid connection node according to claim 1, characterized in that: Two horizontal inner partitions are arranged in the box column at intervals, and the two horizontal inner partitions respectively correspond to the positions of the upper flange plate and the lower flange plate of the short box beam.

10. The long-span box beam and box column rigid connection node according to claim 1, characterized in that: The first end of the short box beam is fixedly connected to the box column by welding.

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