A combined steel beam-column structure

Abstract

The utility model discloses a combined steel beam column structure belongs to steel beam column structure technical field. Including bottom column and can with bottom column outside slide nested cooperation's steel cover, bottom column side wall is equipped with a plurality of first through -hole, is equipped with corresponding a plurality of second through -hole on the steel cover, the steel cover side surface is connected and is installed with cantilever, and the cantilever is connected and installed with steel beam on the side away from the steel cover, and the cantilever is nested fixed and is installed with fixed box, and the fixed box is slidably embedded with fixed plate, and the fixed plate is connected and is equipped with the pin column of being able to pass through corresponding second through -hole and corresponding first through -hole on steel cover side, and the fixed box is equipped with the compression spring of being able to to fixed plate direction elasticity support to steel cover, still include the sliding sleeve of can with steel cover inside slide nested, and the sliding sleeve top is equipped with the apron. This combined steel beam column structure can assemble steel beam on the ground, and the pin column of steel cover and spring telescopic is connected and is installed fixed on bottom column, avoids the security risk that personnel aerial work produces, improves installation efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel beam-column structure, specifically a composite steel beam-column structure. Background Technology

[0002] Steel beams and columns are key components in steel structure buildings, mainly including steel beams and steel columns. Steel beams are transverse load-bearing members, mainly bearing the horizontal loads of the building, such as wind loads and seismic loads. They are usually welded from steel plates and have high bending and shear strength. Steel columns are vertical load-bearing members, mainly bearing the weight of the building and vertical loads, and transferring them to the foundation. They are also usually welded from steel plates and have high strength and stiffness.

[0003] Steel beams and columns are widely used in various types of buildings due to their high strength, lightweight, and excellent seismic performance. In high-rise buildings, steel beams can withstand enormous loads and strong wind pressure while reducing the pressure on the foundation and lowering foundation construction costs. In industrial plants, steel beams, with their superior bending resistance and strength, enable large-span structural designs, and their simple structure allows for rapid construction. Furthermore, steel beams are widely used in residential, office, commercial, and public facilities buildings.

[0004] In traditional steel structure construction, the connection and installation of steel beams and columns present significant safety hazards and efficiency bottlenecks. Current techniques generally rely on workers climbing to high altitudes to complete the on-site splicing of steel beams and columns within confined working spaces. Due to the limited working space at heights, it is difficult to form a multi-person collaborative work mode, resulting in the installation process being carried out in a single step. This not only exposes construction workers to risks such as falls from heights and being struck by objects for extended periods, but also greatly limits construction efficiency. Utility Model Content

[0005] To address the problems of low connection and installation efficiency, the need for high-altitude operations, and safety risks associated with existing steel beam-column structures, this utility model provides a composite steel beam-column structure.

[0006] This utility model is achieved through the following technical solution:

[0007] A composite steel beam-column structure includes a base column and a steel sleeve that can slide and nest with the outer side of the base column. The upper side wall of the base column has several first through holes, and the steel sleeve has several second through holes corresponding to the first through holes. A cantilever is connected and installed on the side of the steel sleeve, and a steel beam is connected and installed on the side of the cantilever away from the steel sleeve. A fixing box is nested and fixedly installed on the cantilever, and a fixing plate is slidably embedded in the fixing box. A pin that can pass through the corresponding second through hole and the corresponding first through hole is connected to the side of the fixing plate near the steel sleeve. A compression spring that can elastically support the fixing plate towards the steel sleeve is provided in the fixing box. It also includes a sliding sleeve that can slide and nest with the inner side of the steel sleeve, and the top of the sliding sleeve is provided with a cover plate.

[0008] A further improvement of this invention is that the free end of the pin is hemispherical. This allows the pin in the second through hole to smoothly enter the first through hole when the second through hole is aligned with the first through hole, preventing the pin from getting stuck due to friction or manufacturing errors, thus avoiding repeated adjustments and affecting the efficiency of the docking and installation.

[0009] A further improvement of this invention is that the inner edge of the lower end of the steel sleeve is chamfered. This facilitates positioning during docking and makes it easier for the steel sleeve to be nested onto the base post.

[0010] A further improvement of this invention is that several reinforcing plates are connected between the lower part of the cantilever and the steel sleeve. This enhances the structural stability of the cantilever, prevents localized deformation under stress, improves its resistance to deformation, and makes it more robust.

[0011] A further improvement of this invention is that the cantilever is provided with several third through holes on the side away from the steel sleeve. This allows for connection via bolts, avoiding on-site welding and the associated safety hazards. Furthermore, bolted connections offer higher efficiency, higher quality, and lower technical requirements.

[0012] A further improvement of this invention is that a connecting rod is connected and installed at the lower end of the sliding sleeve, and a tapered guide block is connected and installed at the lower end of the connecting rod. When the steel sleeve is lowered for docking, the tapered guide block can easily extend into the interior of the base column. When the tapered guide block is fully inserted into the interior of the base column, the steel sleeve and the base column are perfectly aligned, greatly improving the efficiency of docking and installation.

[0013] As can be seen from the above technical solutions, the beneficial effects of this utility model are:

[0014] In use, first fix the base column to the concrete base, then fix the steel beam to the steel sleeve via a cantilever. Then, using a crane, calculate the lifting position and lift the connected steel beam horizontally. When it reaches above the base column, align the steel sleeve with the base column and lower it down. The base column is inserted into the steel sleeve, and the sliding sleeve is pushed upward. When the first through hole and the second through hole are fully aligned, under the action of the compression spring force, the pin is pushed from the second through hole into the first through hole, completing the installation of the steel beam. This device can assemble the steel beam on the ground, eliminating the need for installation personnel to work at heights, avoiding the risk of falls, and has high connection and installation efficiency, making it convenient for later disassembly. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the preferred overall cross-sectional structure of the present invention.

[0019] In the attached diagram: 1. Base column, 2. Steel sleeve, 3. First through hole, 4. Second through hole, 5. Pin, 6. Fixing plate, 7. Fixing box, 8. Cantilever, 9. First bolt, 10. Compression spring, 11. Sliding sleeve, 12. Cover plate, 13. Reinforcing plate, 14. Third through hole, 15. Connecting rod, 16. Conical guide block, 17. Second bolt, 18. Connecting plate, 19. Steel beam. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] like Figure 1-3 As shown, a composite steel beam-column structure includes a base column 1 with a square cross-section and a steel sleeve 2 with a square cross-section that can slide and nest on the outside of the base column 1. Each side wall of the base column 1 has several drilled first through holes 3. The steel sleeve 2 has several second through holes 4 corresponding to the first through holes 3. A cantilever 8 is connected and installed on each side of the steel sleeve 2. A fixing box 7 is nested on the cantilever 8. The upper side of the cantilever 8 has a through hole, and the upper side of the fixing box 7 has a threaded hole corresponding to the through hole. The cantilever 8 and the fixing box 7 are fixedly connected by first bolts 9, so that the fixing box 7 and the steel sleeve 2... The fixing plate 6 is slidably embedded in the fixing box 7. The fixing plate 6 is connected to the side of the steel sleeve 2 with a pin 5 that can pass through the corresponding first through hole 3 and the corresponding second through hole 4. The fixing box 7 is provided with a compression spring 10 that provides elastic support to the fixing plate 6 towards the steel sleeve 2. The two sides of the compression spring 10 are respectively nested on the corresponding cylindrical protrusions on the fixing plate 6 and the fixing box 7. This combined steel beam and column structure also includes a sliding sleeve 11 that can be slidably embedded in the inside of the steel sleeve 2. The outer shape and size of the bottom column 1 are the same as the outer shape and size of the sliding sleeve 11. The top of the sliding sleeve 11 is provided with a cover plate 12.

[0022] In use, the steel sleeve 2 and its attached components are pre-assembled in the factory. The pre-assembly steps include: first, welding the cantilever 8 onto the steel sleeve 2 according to design requirements; then, embedding the sliding sleeve 11 into the steel sleeve 2; then, nesting the fixing box 7 onto the cantilever 8; and finally, installing the compression spring 10 and the fixing plate 6 with the pin 5 into the fixing box 7. External force is applied to the fixing box 7 to make it press against the steel sleeve 2, aligning the threaded hole on the fixing box 7 with the through hole on the cantilever 8. The first bolt 9 is then passed through the through hole on the cantilever 8 and installed into the threaded hole on the fixing box 7, thus fixing the fixing box 7. The pin 5 is then positioned in the second through hole 4, its end pressing against the sliding sleeve 11, ready for connection. This pre-assembly saves on-site installation time, and the small size of the components facilitates transportation. After arriving on site, the base column 1 is first fixed to the pre-cured concrete base with anchor bolts, and then the steel beam 19 is welded and installed together with the cantilever 8. To increase the structural strength after welding, reinforcing plates need to be welded around the connection points. Then, the lifting positions are calculated, and a crane with appropriate lifting capacity and height is used to horizontally lift the connected steel beam 19 to directly above the base column 1. The steel sleeve 2 is then aligned with the base column 1 and lowered down, with the base column 1 embedded inside the steel sleeve 2. The base column 1, nested in the steel sleeve 2, pushes the sliding sleeve 11 upward. When the first through hole 3 and the second through hole 4 are fully aligned, the compression spring 10 pushes the pin 5 from the second through hole 4 into the first through hole 3, completing the installation of the steel beam 19. The ejected sliding sleeve 11 can be fixed to the cover plate 12 using a crane with strong magnets or connectors. The sliding sleeve 11 can then be removed by a crane for the installation of other steel beams and columns. This device allows for the welding and assembly of the steel beam 19 on the ground, eliminating the need for installation personnel to work at heights, avoiding the risk of falls, and providing high connection and installation efficiency, reliable connection, and convenient disassembly later.

[0023] To improve the stability of the connection, multiple layers of first through holes 3 and second through holes 4 are set for connection. Here, we take two layers as an example. When the first through hole 3 of the second layer is aligned with the second through hole 4 of the first layer, the two pins 5 located on the same fixing plate 6 can only be inserted into the first through hole 3 at the same time due to the function of the fixing plate 6. Therefore, the pins 5 will not be inserted into the first through hole 3. Only when the first through holes 3 and second through holes 4 of both layers are aligned at the same time can the pins 5 be inserted into the first through hole 3, so that the bottom post 1 and the steel sleeve 2 are connected and installed together.

[0024] The free end of the pin 5 is hemispherical. The hemispherical front end can extend into the first through hole 3 in advance when the first through hole 3 and the second through hole 4 are not aligned, preventing the pin 5 from getting stuck in the first through hole 4 and having to be adjusted back and forth, thus saving installation time.

[0025] The lower inner edge of the steel sleeve 2 is chamfered. This helps guide the steel sleeve 2 to align with the base post 1 during descent, making the docking process easier and improving installation efficiency.

[0026] Several reinforcing plates 13 are provided between the lower part of the cantilever 8 and the steel sleeve 2. These plates enhance the structural stability of the cantilever 8, prevent localized deformation under stress, improve its resistance to deformation, and increase its load-bearing capacity.

[0027] The cantilever 8 has several third through holes 14 on the side away from the steel sleeve 2. The steel beams to be connected are aligned end-to-end with the cantilever 8. Several connecting plates 18 are used to clamp the steel beams 19 and the cantilever 8 from both sides. Second bolts 17 are passed through the third through holes 14 to firmly fix the cantilever 8 and the steel beams 19. This method avoids on-site hot work, improves assembly efficiency, prevents inadequate welding from affecting connection quality, facilitates disassembly, requires lower worker skills, and has high reliability.

[0028] The lower end of the sliding sleeve 11 is connected to a connecting rod 15, and the lower end of the connecting rod 15 is connected to a tapered guide block 16. When hoisting the steel sleeve 2 and connecting it to the base column 1, since the steel sleeve 2 and the base column 1 can only be properly mated and nested, the tapered end of the tapered guide block 16 can easily extend into the interior of the base column 1. As the tapered guide block 16 fully enters the interior of the base column 1, it naturally drives the steel sleeve 2 to remain vertically nested on the base column 1, enabling rapid positioning and installation.

[0029] It should be noted that during pre-installation, grease needs to be applied inside the fixing box 7 to ensure that the fixing plate 6 inside the fixing box 7 can slide smoothly and prevent rust due to friction, which would affect the service life. In the preferred embodiment, when the steel sleeve 2 is connected and installed on the base column 1, the connecting rod 15 is exactly in the insertion position of the pin 5. Since the diameter of the connecting rod 15 is small, it will not interfere with the insertion and fixing of the pin 5 in the first through hole 3 of the base column 1.

[0030] When in use, a rope needs to be installed at the end of the steel beam 19, and personnel on the ground pull the suspended steel beam 19 from a distance to help correct the position of the steel beam 19, so that the steel sleeve 2 can be more accurately fitted onto the base column 1, in order to ensure safe construction, reduce docking time, and improve installation efficiency.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A composite steel beam-column structure, comprising a base column (1) and a steel sleeve (2) capable of slidingly nesting with the outer side of the base column (1), characterized in that, The upper side wall of the bottom column (1) is provided with several first through holes (3), and the steel sleeve (2) is provided with several second through holes (4) corresponding to the first through holes (3). A cantilever (8) is connected and installed on the side of the steel sleeve (2). A steel beam (19) is connected and installed on the side of the cantilever (8) away from the steel sleeve (2). A fixing box (7) is nested and fixed on the cantilever (8). A fixing plate (6) is slidably embedded in the fixing box (7). A pin (5) that can pass through the corresponding second through hole (4) and the corresponding first through hole (3) is connected to the side of the fixing plate (6) near the steel sleeve (2). A compression spring (10) that can elastically support the fixing plate (6) towards the steel sleeve (2) is provided in the fixing box (7). It also includes a sliding sleeve (11) that can be slidably embedded in the inner side of the steel sleeve (2). A cover plate (12) is provided on the top of the sliding sleeve (11).

2. The composite steel beam-column structure according to claim 1, characterized in that, The free end of the pin (5) is hemispherical.

3. The composite steel beam-column structure according to claim 1, characterized in that, The inner edge of the lower end of the steel sleeve (2) is chamfered.

4. The composite steel beam-column structure according to claim 1, characterized in that, Several reinforcing plates (13) are connected between the lower part of the cantilever (8) and the steel sleeve (2).

5. The composite steel beam-column structure according to claim 1, characterized in that, The cantilever (8) has several third through holes (14) on the side away from the steel sleeve (2).

6. The composite steel beam-column structure according to claim 1, characterized in that, A connecting rod (15) is connected and installed at the lower end of the sliding sleeve (11), and a tapered guide block (16) is connected and installed at the lower end of the connecting rod (15).

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