Fabricated H-shaped steel column connecting structure applied to foundation pit engineering

Abstract

The utility model discloses an assembly type H-shaped steel column connecting structure applied to foundation pit engineering, which comprises a connecting mechanism arranged between two H-shaped steel main bodies, each H-shaped steel main body consists of two flanges and a web plate, the connecting mechanism comprises two rectangular plates and two U-shaped plates, the two rectangular plates are respectively positioned on the outer sides of the two flanges on the same side, and the two U-shaped plates are respectively positioned on the outer sides of the two flanges on the same side. The two U-shaped plates are located on the outer sides of the two web plates correspondingly, a plurality of mounting grooves are formed in the rectangular plate, driving rods are mounted on the inner sides of the mounting grooves in the rectangular plate, and threaded rods are fixed to one ends of the driving rods. Balanced supporting and stable positioning can be provided for connection through the rectangular plate and the U-shaped plate, so that the stability and durability of the whole structure are enhanced, in addition, the driving rod and the threaded rod are arranged on the inner side, the loosening situation possibly occurring when the driving rod and the threaded rod make contact with an underground soil layer is effectively prevented, and the reliability and long-term stability of connection are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of steel structure engineering, specifically a prefabricated H-shaped steel column connection structure applied in foundation pit engineering. Background Technology

[0002] In construction engineering, pile foundations play a crucial role in supporting buildings or other structures. H-beams, with their high strength, durability, and ease of construction, are particularly suitable for situations requiring the bearing of large loads or complex soil conditions.

[0003] In construction engineering, when larger or longer supporting structures are required, joining two or more sections of H-beams can achieve broader or deeper foundation support, while also enhancing the stability and robustness of the overall structure. The design and implementation of the connection structure are crucial for ensuring foundation stability, structural reliability, and improving the durability of the project.

[0004] However, the most common connection methods for H-shaped steel columns are welding or bolting, which have the following drawbacks:

[0005] 1) On-site welding has high requirements for the construction environment, is easily affected by the weather, and the welding quality is difficult to guarantee.

[0006] 2) Traditional bolted connections require high precision, are complicated to install, and expose the bolts, which may be affected by corrosion over long-term use.

[0007] 3) The existing prefabricated connection structure is not stiff enough, and it is prone to local deformation or loosening when subjected to large loads.

[0008] Therefore, developing an efficient, stable, and easy-to-assemble H-shaped steel column connection structure has become an urgent need in engineering construction. Utility Model Content

[0009] The purpose of this utility model is to provide a prefabricated H-shaped steel column connection structure for use in foundation pit engineering, to solve the problems of complex construction, insufficient rigidity, and poor durability mentioned in the background art, and to ensure the reliability and long-term stability of the connection. To achieve the above objective, this utility model provides the following technical solution:

[0010] A prefabricated H-shaped steel column connection structure for use in foundation pit engineering.

[0011] A prefabricated H-beam steel column connection structure for use in foundation pit engineering includes a connection mechanism installed between two H-beam steel bodies. Each H-beam steel body consists of two flanges and one web. The connection mechanism comprises two rectangular plates and two U-shaped plates. The two rectangular plates are located on the outer sides of the two flanges on the same side, and the two U-shaped plates are located on the outer sides of the two webs. Multiple mounting slots are provided on the rectangular plates. A drive rod is installed inside each mounting slot, and one end of the drive rod is fixed with a threaded rod. The threaded rod is inserted into the rectangular plates and into the flanges. The threaded rod is threadedly connected to the U-shaped plates.

[0012] Preferably, the rectangular plate and the flange are provided with through holes for the threaded rod, the threaded rod is located inside the through holes, and the through holes on the rectangular plate are connected to the mounting grooves on the rectangular plate.

[0013] Preferably, sealing gaskets are provided between the rectangular plate and the flange, as well as between the U-shaped plate and the web, and between the U-shaped plate and the flange.

[0014] Preferably, both the rectangular plate and the U-shaped plate have inclined surfaces near their ends.

[0015] Preferably, a plurality of first reinforcing plates are installed on the outer side of the rectangular plate, and a second reinforcing plate is installed on the outer side of the U-shaped plate.

[0016] Preferably, a sealing cap is installed on the inner side of the mounting groove on the rectangular plate.

[0017] Preferably, a plurality of circular columns are fixed on the side of the rectangular plate near the flange, and a sealing sleeve is installed on the outside of the circular columns. The circular columns are inserted into the web plate and the U-shaped plate.

[0018] Preferably, the U-shaped plate and the flange of the circular column are provided with circular holes adapted to the circular column, and the U-shaped plate is located inside the circular hole.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] The prefabricated H-shaped steel column connection structure and its construction method provided by this utility model have the following advantages:

[0021] The rectangular and U-shaped plates provide balanced support and stable positioning for the connection, thereby enhancing the overall structural stability and durability. The drive rod and threaded rod are placed on the inside, effectively preventing loosening that may occur when in contact with the underground soil layer, ensuring the reliability and long-term stability of the connection.

[0022] 1. Convenient construction: No on-site welding is required, reducing dependence on the construction environment and improving construction efficiency;

[0023] 2. Stable connection: The tight fit between the drive rod and the rectangular plate improves the overall rigidity and prevents the connection from becoming loose;

[0024] 3. High durability: The bolt assembly is hidden inside the structure, reducing the risk of corrosion and increasing service life;

[0025] 4. High adaptability: It can be applied to various connection scenarios of H-shaped steel columns and has strong engineering adaptability. Attached Figure Description

[0026] Figure 1 This is a disassembled view of the present invention;

[0027] Figure 2 This is an assembly effect diagram of this utility model;

[0028] Figure 3 This is a perspective view of the present invention;

[0029] Figure 4 This is a schematic diagram of the rectangular plate structure in this utility model;

[0030] Figure 5 This is a breakdown diagram of the hot-rolled patterned H-beam of this utility model;

[0031] Figure 6 This is an assembly effect diagram of the hot-rolled patterned H-beam of this utility model.

[0032] In the figure: 1. Flange; 2. Web plate; 3. Rectangular plate; 4. U-shaped plate; 5. Drive rod; 6. Mounting groove; 7. Threaded rod; 8. Circular column; 9. Circular hole; 10. Sealing cap; 11. Perforation; 12. First reinforcing plate; 13. Second reinforcing plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] The specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0035] Example 1:

[0036] like Figure 1-4 As shown, a prefabricated H-beam steel column connection structure applied in foundation pit engineering includes two H-beam steel bodies installed together, and the two H-beam steel bodies are connected by a connection mechanism.

[0037] The above-mentioned H-beam body is a mature existing technology, which consists of two flanges 1 and a web 2. It will not be described in detail in this embodiment. The core of this technical solution lies in the specific structure of the connecting mechanism.

[0038] Please refer to the appendix. Figure 1 and attached Figure 2 The connecting mechanism includes two rectangular plates 3 and two U-shaped plates 4. The two rectangular plates 3 are respectively attached to the outer sides of the two flanges 1 on the same side, and the two U-shaped plates 4 are respectively attached to the two sides of the web plate 2, and the two sides of the U-shaped plates 4 abut against the side of the flange 1 near the web plate 2.

[0039] Please refer to the appendix. Figure 3 and attached Figure 4 The rectangular plate 3 has multiple mounting slots 6. A drive rod 5 is installed on the inner side of the mounting slot 6 on the rectangular plate 3, and a threaded rod 7 is fixed to one end of the drive rod 5. The diameter of the drive rod 5 is larger than the diameter of the threaded rod 7. Both the rectangular plate 3 and the flange 1 have through holes 11 adapted to the threaded rod 7. The through holes 11 on the rectangular plate 3 are connected to the mounting slots 6 on the rectangular plate 3. The inner diameter of the mounting slot 6 is smaller than the inner diameter of the through hole 11. The threaded rod 7 is located inside the through hole 11, so that the threaded rod 7 can be inserted into the rectangular plate 3 and the flange 1. The threaded rod 7 is also threadedly connected to the U-shaped plate 4.

[0040] According to the above structure, when it is necessary to connect two H-beam bodies, first place two U-shaped plates 4 between two flanges 1, and the two U-shaped plates 4 are respectively located on both sides of the two web plates 2. Then place two rectangular plates 3 on the outside of the two flanges 1, and insert the threaded rod 7 into the inner side of the mounting groove 6 on the rectangular plate 3. At this time, the threaded rod 7 is located inside the through hole 11, and the drive rod 5 is located inside the mounting groove 6. At this time, rotate the drive rod 5 to make the threaded rod 7 and the U-shaped plate 4 threadedly connected, thereby connecting the two H-beam bodies together. During the process, the circular column 8 is inserted into the inner side of the circular hole 9 on the flange 1 and the circular hole 9 on the U-shaped plate 4.

[0041] In summary, by evenly distributing rectangular plates 3 and U-shaped plates 4 on the inner and outer sides of flange 1 and web 2, more uniform support and stable positioning can be provided at the connection of the two H-beam bodies.

[0042] The aforementioned distribution pattern plays a crucial role in enhancing the overall structural robustness. It helps balance the stress distribution, reducing the possibility of excessive local pressure or uneven structural stress. Through this balance, the connection between the two H-beams is better able to withstand external pressure and changes, thereby improving the stability and durability of the structure.

[0043] In addition, the drive rod 5 is placed inside the mounting groove 6, while the threaded rod 7 is located inside the rectangular plate 3, the U-shaped plate 4 and the flange 1. This design prevents the drive rod 5 and the threaded rod 7 from being exposed, thereby effectively preventing the drive rod 5 and the threaded rod 7 from loosening when they come into contact with underground soil, rock, rock strata, etc. This not only makes the connection more secure and reliable, but also ensures that the structure can maintain its stability when facing the underground environment, thus making it more sustainable and reliable in the long term.

[0044] To reduce the erosion of the drive rod 5 and mounting groove 6 by underground impurities at the connection points of the two H-beams, sealing gaskets are installed between the rectangular plate 3 and the flange 1, and between the U-shaped plate 4 and the web plate 2, and between the U-shaped plate 4 and the flange 1. These sealing gaskets deform when the threaded rod 7 is threadedly connected to the U-shaped plate 4, thereby sealing the gaps and preventing the intrusion of underground impurities. In addition, a sealing cap 10 is installed on the inner side of the mounting groove 6 on the rectangular plate 3, which can seal the mounting groove 6, further reducing the possibility of underground impurities eroding the drive rod 5 and the threaded rod 7, ensuring the stability of the connection, improving the reliability of use in underground environments, and extending its service life.

[0045] Please refer to the appendix. Figure 2 -Appendix Figure 4 Meanwhile, inclined surfaces are provided near both ends of the rectangular plate 3 and the U-shaped plate 4. Multiple first reinforcing plates 12 are installed on the outer side of the rectangular plate 3, and second reinforcing plates 13 are installed on the outer side of the U-shaped plate 4. The inclined surfaces can reduce the resistance when buried underground to a certain extent. This allows the rectangular plate 3 and the U-shaped plate 4 to be guided more smoothly into the soil or rock strata, reducing the resistance of the soil or rock strata to the burial of the rectangular plate 3 and the U-shaped plate 4, making the pile burial process smoother and improving construction efficiency.

[0046] The first reinforcing plate 12 and the second reinforcing plate 13 not only increase the strength and rigidity of the rectangular plate 3 and the U-shaped plate 4, providing a certain degree of support and reinforcement, but also facilitate cutting or breaking through the soil. When the rectangular plate 3 and the U-shaped plate 4 are pushed into the ground, the first reinforcing plate 12 and the second reinforcing plate 13 can cut through the soil or rock layers to a certain extent, making it easier for the rectangular plate 3 and the U-shaped plate 4 to penetrate or pass through the underground layers. This design can reduce soil resistance during pile installation, making the structure easier to bury underground.

[0047] In summary, this utility model employs a uniform distribution of rectangular plates 3 and U-shaped plates 4, providing balanced support and stable positioning for the connection, thereby enhancing the overall structural stability and durability. Furthermore, the drive rod 5 and threaded rod 7 are positioned on the inner side, effectively preventing loosening that may occur upon contact with the underground soil layer, ensuring the reliability and long-term stability of the connection.

[0048] Example 2:

[0049] Please refer to the appendix. Figure 3 and attached Figure 4 The only difference between this embodiment and embodiment 1 is that: multiple circular columns 8 are fixed on the side of the rectangular plate 3 near the flange 1, and a sealing sleeve is installed on the outside of the circular columns 8. At the same time, circular holes 9 adapted to the circular columns 8 are opened on both the U-shaped plate 4 and the flange 1, and the U-shaped plate 4 is located inside the circular holes 9. The circular columns 8 and the web plate 2, as well as the circular columns 8 and the U-shaped plate 4, are connected by the circular holes 9.

[0050] According to the above structure, when the threaded rod 7 is connected to the U-shaped plate 4, the circular column 8 is located inside the circular hole 9 on the U-shaped plate 4 and the flange 1, and the sealing sleeve is deformed to ensure the effective sealing of the connection gap. In the event of possible lateral tension or thrust, the circular column 8 will bear these forces to a certain extent, reducing and sharing the influence of the lateral tension or thrust on the threaded rod 7.

[0051] Meanwhile, the sealing sleeve ensures a tight connection between the circular column 8 and the flange 1, as well as between the circular column 8 and the U-shaped plate 4. This design not only effectively reduces the impact of vibration or shaking that may occur when burying the H-beam body underground on the connection between the threaded rod 7 and the U-shaped plate 4, but also further enhances the stability and reliability of the connection between the threaded rod 7 and the U-shaped plate 4.

[0052] Example 3:

[0053] like Figure 5-6 As shown, a prefabricated H-beam steel column connection structure applied in foundation pit engineering includes two H-beam steel bodies, which are connected by a connection mechanism.

[0054] The main body of the H-beam is made of hot-rolled patterned H-beam, which has raised patterns on its surface. When hot-rolled patterned H-beam is used as a pile foundation, it can increase the contact area and friction when buried underground, providing better stability. It will generate 5-10 times the friction compared to ordinary H-beam.

[0055] In the same scenario, smaller-sized hot-rolled patterned H-beams can be used to replace larger-sized ordinary H-beams and achieve the same effect. This greatly improves the surface friction coefficient and enhances the friction with the surrounding soil after being buried underground, thereby improving the stability and load-bearing capacity of the foundation and reducing the cost of steel.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated H-beam steel column connection structure for use in foundation pit engineering, comprising a connection mechanism installed between two H-beam steel bodies, wherein the H-beam steel body consists of two flanges (1) and a web (2), characterized in that: The connecting mechanism includes two rectangular plates (3) and two U-shaped plates (4). The two rectangular plates (3) are located on the outer side of the two flanges (1) on the same side, and the two U-shaped plates (4) are located on the outer side of the two webs (2). Multiple mounting slots (6) are provided on the rectangular plates (3). A drive rod (5) is installed on the inner side of the mounting slots (6) on the rectangular plates (3), and a threaded rod (7) is fixed at one end of the drive rod (5). The threaded rod (7) is inserted into the rectangular plates (3) and between the rectangular plates (3) and the flanges (1). The threaded rod (7) is threadedly connected to the U-shaped plates (4).

2. The prefabricated H-shaped steel column connection structure applied in foundation pit engineering according to claim 1, characterized in that: Both the rectangular plate (3) and the flange (1) are provided with through holes (11) for the threaded rod (7). The threaded rod (7) is located inside the through hole (11), and the through hole (11) on the rectangular plate (3) is connected to the mounting groove (6) on the rectangular plate (3).

3. The prefabricated H-shaped steel column connection structure applied in foundation pit engineering according to claim 1, characterized in that: Sealing gaskets are provided between the rectangular plate (3) and the flange (1), as well as between the U-shaped plate (4) and the web plate (2), and between the U-shaped plate (4) and the flange (1).

4. The prefabricated H-shaped steel column connection structure applied in foundation pit engineering according to claim 1, characterized in that: Both the rectangular plate (3) and the U-shaped plate (4) have inclined surfaces near their two ends.

5. The prefabricated H-shaped steel column connection structure applied in foundation pit engineering according to claim 1, characterized in that: Multiple first reinforcing plates (12) are installed on the outside of the rectangular plate (3), and a second reinforcing plate (13) is installed on the outside of the U-shaped plate (4).

6. The prefabricated H-shaped steel column connection structure applied in foundation pit engineering according to claim 1, characterized in that: A sealing cap (10) is installed on the inner side of the mounting groove (6) on the rectangular plate (3).

7. The prefabricated H-shaped steel column connection structure applied in foundation pit engineering according to claim 1, characterized in that: The rectangular plate (3) has multiple circular columns (8) fixed on one side near the flange (1), and the outer side of the circular columns (8) is fitted with a sealing sleeve. The circular columns (8) are inserted into the web plate (2) and the circular columns (8) are inserted into the U-shaped plate (4).

8. The prefabricated H-shaped steel column connection structure applied in foundation pit engineering according to claim 7, characterized in that: The circular column (8) has a U-shaped plate (4) and a flange (1) with a circular hole (9) adapted to the circular column (8), and the U-shaped plate (4) is located inside the circular hole (9).

Images