Steel stub column for connecting curved pipe trusses

Abstract

The utility model relates to the technical field of building engineering, concretely relates to a steel short column connected with curved pipe truss, which comprises first and second bearing platforms and curved pipe trusses all poured with reinforced concrete, the steel short column body for connecting the curved pipe truss is arranged in the second bearing platform, a plurality of pegs for improving stability are arranged on the steel short column body at equal intervals, a circular rigid top plate is fixedly installed at the top end of the steel short column body, a circular rigid bottom plate is fixedly installed at the bottom end, a plurality of reinforcing rib plates are arranged on one side of the steel short column body in a circular array close to the circular rigid bottom plate and the circular rigid top plate, and a reserved groove for connecting the steel short column body is arranged at the end of the curved pipe truss; the steel short column body and accessories are processed and formed in a factory, can be transported to a construction site for direct installation, and the processing quality is guaranteed; each steel short column circular rigid bottom plate is connected through a bolt steel support embedded in the first bearing platform, which is fast to install and significantly improves the efficiency.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and specifically to a short steel column for connecting curved pipe trusses. Background Technology

[0002] In modern building structures, the design and construction of supporting components are crucial to ensuring the overall stability and durability of the building. Steel short columns, as an important form of supporting structure, are widely used in bridges, buildings, and high-rise buildings, especially in structures that need to withstand large static loads. Concrete-reinforced steel short columns combine the advantages of steel structures and concrete, providing excellent load-bearing capacity, good deformation capacity, and high seismic performance under various working conditions.

[0003] The existing steel short columns for installing curved tube trusses are relatively simple internally, relying only on simple steel cylinders and lacking optimized designs for stability and load-bearing capacity. Especially when subjected to large static pressure, they are prone to local instability or deformation. In addition, the installation method is relatively complex, requiring tedious construction on site, which greatly reduces construction efficiency.

[0004] Therefore, there is an urgent need for a type of short steel column that can provide stable support, is not prone to instability or deformation, and is easy to install, for installing curved tube trusses. Utility Model Content

[0005] The purpose of this invention is to provide a short steel column for connecting curved tubular trusses to solve the above-mentioned problems.

[0006] This utility model is achieved through the following technical solution: A steel short column for connecting a curved tube truss includes a first foundation, a second foundation, and a curved tube truss, all cast in reinforced concrete. The second foundation contains a steel short column body for connecting the curved tube truss. The steel short column body has multiple studs evenly spaced around its perimeter to improve stability. A circular rigid top plate is fixedly installed at the top of the steel short column body, and a circular rigid bottom plate is fixedly installed at the bottom. Multiple reinforcing ribs are arranged in a circular array on the side of the circular rigid bottom plate and the circular rigid top plate close to the steel short column body. The end of the curved tube truss has a reserved groove for connecting with the steel short column body.

[0007] Furthermore, the diameter of the circular rigid base plate is larger than the outer diameter of the steel short column body. There are multiple reserved holes in a circular array on the area from the outer circle of the steel short column body to the outer circle of the circular rigid base plate. Anchor bolts are installed in the reserved holes. The anchor bolts pass through the reserved holes and are fixedly connected to the first bearing platform to fix the steel short column body.

[0008] Furthermore, the diameter of the circular rigid top plate is larger than the outer diameter of the steel short column body. A connecting member that is connected to the end of the curved tube truss is fixedly installed on the circular rigid top plate. The first end of the connecting member passes through the circular rigid top plate and is embedded in the interior of the steel short column body and fixedly connected to the steel short column body. The second end of the connecting member is exposed and embedded in the reserved groove at the end of the curved tube truss and fixedly connected to the curved tube truss.

[0009] Furthermore, the steel short column body is a circular steel plate hollow sealed structure, and multiple reinforcing blocks are provided inside the steel short column body. A material outlet with a diameter of 50mm is provided at the center of the side of the circular steel top plate near the steel short column body.

[0010] Furthermore, after the first foundation is poured, the steel short column body is connected and fixed to the first foundation with anchor bolts. Then, micro-expansion concrete is poured into the interior of the steel short column body through the discharge port. The micro-expansion concrete wraps around the reinforcing block and fills the interior of the steel short column body and the connection with the first foundation. A flow hole with a diameter of 50mm is provided at the outer circle of the top of the steel short column body. After the micro-expansion concrete has filled the interior of the steel short column body and the connection with the first foundation, it overflows from the flow hole. After the flow hole overflows with the same proportion of micro-expansion concrete, it is sealed by a steel plate with the same diameter as the flow hole.

[0011] Furthermore, the second pier is poured after the steel short column body is installed, and the second pier covers the steel short column body, leaving the second end of the remaining connecting component exposed.

[0012] Furthermore, the second pier completely encloses the steel short column body with studs evenly spaced around it, forming an integral composite component that improves stability.

[0013] Furthermore, multiple first piers are cast, and each of the multiple first piers is provided with four short steel columns, which are used for the installation of a single tube truss in each curved tube truss.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. The steel short column body of this utility model is processed and formed in the factory, and the studs, reinforcing plates, connecting components, circular rigid bottom plate and circular rigid top plate are welded to the steel short column body. It can be transported to the construction site for direct installation, and the processing quality is guaranteed. The circular rigid bottom plate of each steel short column is connected by bolts and steel brackets pre-embedded in the first bearing platform, which makes the installation quick and significantly improves efficiency. 2. This utility model improves the rigidity of the entire steel short column by injecting micro-expansion concrete into the inside of the steel short column body, thus saving steel. 3. The top and bottom layers of the steel short column body of this utility model are provided with multiple stiffening steel plates at equal intervals in the circumference to ensure the sturdiness of the entire structure; at the same time, the outer side of the steel short column body is encased with a second bearing platform to improve its corrosion resistance and the stability of the entire component. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the entire structure after the casting of this utility model is completed; Figure 3 This is a schematic diagram of the installation structure of the curved tube truss of this utility model.

[0016] The attached diagram shows the markings and corresponding component names: 1-First foundation; 2-Second foundation; 3-Steel short column body; 4-Stud; 5-Reinforcing rib plate; 6-Discharge port; 7-Flow hole; 8-Connecting component; 9-Circular rigid bottom plate; 10-Circular rigid top plate; 11-Anchor bolt; 12-Micro-expanded concrete; 13-Reinforcing block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are for explaining the utility model only and are not intended to limit the utility model. It should be noted that this utility model is already in the actual research and development stage.

[0018] Example 1 like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a steel short column connecting a curved tube truss includes a first foundation 1, a second foundation 2, and a curved tube truss, all cast with reinforced concrete. The second foundation 2 contains a steel short column body 3 for connecting the curved tube truss. The steel short column body 3 has multiple studs 4 (the number is set according to requirements) arranged in a circular array at equal intervals around its perimeter to improve stability. A circular rigid top plate 10 is fixedly installed at the top of the steel short column body 3, and a circular rigid bottom plate 9 is fixedly installed at the bottom. Multiple reinforcing ribs 5 (the number is set according to requirements) are arranged in a circular array on the side of the circular rigid bottom plate 9 and the circular rigid top plate 10 close to the steel short column body 3. The reinforcing ribs 5 locally increase the rigidity and strength of the steel short column body 3, preventing local instability at locations with high stress and ensuring the overall safety and reliable force transmission of the structure. A reserved groove for connecting to the steel short column body 3 is provided at the end of the curved tube truss.

[0019] The diameters of the circular rigid base plate 9 and the circular rigid top plate 10 are larger than the outer diameter of the steel short column body 3. There are four reserved holes in a circular array on the area from the outer circle of the steel short column body 3 to the outer circle of the circular rigid base plate 9. Anchor bolts 11 are respectively installed in the four reserved holes. The anchor bolts 11 pass through the reserved holes and are fixedly locked to the bolt steel bracket positioned inside the first bearing platform 1. A connecting member 8 is fixedly installed on the circular rigid top plate 10 to connect with the end of the curved tube truss. One end of the connecting member 8 passes through the circular rigid top plate 10 and is embedded in the interior of the steel short column body 3 and fixedly connected to the steel short column body 3. The other end of the connecting member 8 is exposed and embedded in the reserved groove at the end of the curved tube truss and fixedly connected to the curved tube truss.

[0020] The steel short column body 3 is a circular steel plate hollow sealed structure. Multiple reinforcing blocks 13 are welded inside the steel short column body 3 (the number of cylindrical arrays on the inner circle of the steel short column body 3 is set according to requirements). A 50mm diameter discharge port 6 is provided at the center of the circular steel top plate 10 near the steel short column body 3. After the first foundation 1 is poured, the steel short column body 3 is connected and fixed to the first foundation 1 by anchor bolts 11. Then, micro-expansion concrete 12 is poured into the interior of the steel short column body 3 through the discharge port 6, and the micro-expansion concrete 12 encapsulates the reinforcing blocks. 13. Further strengthen the tight connection between the micro-expansion concrete 12 and the steel short column body 3, fill and compact the interior of the steel short column body 3 and the connection part with the first foundation 1. The outer circle of the top of the steel short column body 3 is provided with a flow hole 7 with a diameter of 50mm for the reinforcing rib plate. After the micro-expansion concrete 12 fills and compacts the interior of the steel short column body 3 and the connection part with the first foundation 1, it overflows from the flow hole 7. After the same proportion of micro-expansion concrete 12 overflows from the flow hole 7, the flow hole 7 is sealed by a steel plate with the same diameter as the flow hole 7.

[0021] Example 2 like Figure 2 and Figure 3 As shown, in this embodiment, the second support 2 is poured after the steel short column body 3 is installed. The second support 2 encloses the steel short column body 3, leaving the second end of the remaining connecting member 8 exposed. The second support 2 completely encloses the equidistant studs 4 around the steel short column body 3, forming an integral component that improves stability. The first pier 1 is cast in multiple ways (the number is set according to the requirements). Each first pier 1 is equipped with four steel short column bodies 3. The four steel short column bodies 3 are used for the installation of a single tube truss in each curved tube truss.

[0022] Example 3 like Figure 1 , Figure 2 and Figure 3As shown in this embodiment, a specific installation method for a steel short column connecting a curved pipe truss involves first pouring the first foundation 1. After the first foundation 1 is poured, four steel column bodies 3 are fixed and locked to bolted steel brackets positioned inside the first foundation 1 using anchor bolts 11. Before installation, the steel column bodies 3 are fabricated in the factory, and studs 4, reinforcing ribs 5, connecting components 8, circular rigid bottom plates 9, and circular rigid top plates 10 are welded to the steel column bodies 3. This allows for direct installation at the construction site, ensuring processing quality. Each steel short column bottom plate is connected by bolted steel brackets with four studs pre-embedded inside the first foundation 1, resulting in quick installation and significantly improved efficiency. After the steel column bodies 3 are installed, micro-expansion concrete 12 is poured into the interior of the steel column bodies 3 through the discharge port 6, filling and compacting the interior of the steel column bodies 3 and the connection points with the first foundation 1. The micro-expansion concrete 12 fills and compacts the interior of the steel column bodies 3 and the connection points with the first foundation 1. After the connection of the first pier 1 overflows from the flow hole 7, a certain amount of micro-expansion concrete 12 overflows from the flow hole 7 (the quantity is set according to the actual situation). The flow hole 7 is sealed by a steel plate with the same diameter as the flow hole 7. By pouring micro-expansion concrete 12 into the steel column body 3, steel is saved and the rigidity of the entire short steel column is improved. After the micro-expansion concrete 12 is poured, the second pier 2 is poured as a whole, which wraps the second end of the exposed connecting member 8 of the four steel column bodies 3. The second pier 2 completely wraps the studs 4 that are equidistantly arranged around the steel column body 3, forming an integral composite component, which improves its integrity and stability. After the pouring of multiple first piers 1 is completed (the quantity is set according to the requirements and they are paired in pairs), the exposed connecting members 8 on the two paired steel column bodies 3 are respectively embedded into the reserved grooves at the two ends of the curved tube truss and welded to the curved tube truss. The installation is repeated to complete the installation of the curved tube truss.

[0023] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A short steel column connecting a curved tubular truss, comprising a first foundation (1), a second foundation (2), and a curved tubular truss, all cast with reinforced concrete, characterized in that: The second pier (2) is provided with a steel short column body (3) for connecting the curved tube truss. The steel short column body (3) is provided with a number of studs (4) at equal intervals around its perimeter to improve stability. A circular rigid top plate (10) is fixedly installed at the top of the steel short column body (3), and a circular rigid bottom plate (9) is fixedly installed at the bottom. The circular rigid bottom plate (9) and the circular rigid top plate (10) are arranged in a circular array with a number of reinforcing ribs (5) on one side close to the steel short column body (3). The end of the curved tube truss is provided with a reserved groove for connecting with the steel short column body (3).

2. A short steel column for connecting a curved tubular truss as described in claim 1, characterized in that: The diameter of the circular rigid base plate (9) is larger than the outer diameter of the steel short column body (3). There are multiple reserved holes in a circular array on the area from the outer circle side of the steel short column body (3) to the outer circle side of the circular rigid base plate (9). Anchor bolts (11) are installed in the reserved holes. The anchor bolts (11) pass through the reserved holes and are fixedly connected to the first bearing platform (1) to fix the steel short column body (3).

3. A short steel column for connecting a curved tubular truss according to claim 1, characterized in that: The diameter of the circular rigid top plate (10) is larger than the outer diameter of the steel short column body (3). A connecting member (8) that is connected to the end of the curved tube truss is fixedly installed on the circular rigid top plate (10). The first end of the connecting member (8) passes through the circular rigid top plate (10) and is embedded in the interior of the steel short column body (3) and is fixedly connected to the steel short column body (3). The second end of the connecting member (8) is exposed and embedded in the reserved groove at the end of the curved tube truss and is fixedly connected to the curved tube truss.

4. A short steel column for connecting a curved tubular truss according to claim 1, characterized in that: The steel short column body (3) is a circular steel plate hollow closed structure. Multiple reinforcing blocks (13) are provided inside the steel short column body (3). The circular steel top plate (10) has a 50mm diameter discharge port (6) at the center of the side close to the steel short column body (3).

5. A short steel column for connecting a curved tubular truss according to claim 4, characterized in that: After the first pier (1) is poured, the steel short column body (3) is connected and fixed to the first pier (1) by anchor bolts (11), and then micro-expansion concrete (12) is poured into the interior of the steel short column body (3) through the discharge port (6). The micro-expansion concrete (12) wraps the reinforcing block (13) and fills the interior of the steel short column body (3) and the connection part with the first pier (1).

6. A short steel column for connecting a curved tubular truss according to claim 5, characterized in that: The steel short column body (3) has a flow hole (7) with a diameter of 50 mm at the outer circle of the top end. After the micro-expansion concrete (12) fills the interior of the dense steel short column body (3) and the connection part with the first foundation (1), it overflows from the flow hole (7).

7. A short steel column for connecting a bent tubular truss according to claim 6, characterized in that: After the flow hole (7) overflows with the same proportion of micro-expansion concrete (12), it is sealed by a steel plate with the same diameter as the flow hole (7).

8. A short steel column for connecting a bent tubular truss according to claim 3, characterized in that: The second pier (2) is poured after the steel short column body (3) is installed. The second pier (2) wraps the steel short column body (3) and exposes the second end of the remaining connecting member (8).

9. A short steel column for connecting a bent tubular truss according to claim 1, characterized in that: The second pier (2) completely encloses the studs (4) that are equidistantly arranged around the steel short column body (3), forming an integral composite component that improves stability.

10. A short steel column for connecting a bent tubular truss according to claim 1, characterized in that: The first pier (1) is cast in multiple ways, and each of the multiple first piers (1) is provided with four steel short column bodies (3). The four steel short column bodies (3) are used for the installation of a single tube truss in each curved tube truss.

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