Concrete-filled steel tube composite column structure capable of enhancing integrity

Abstract

According to the technical scheme, the concrete-filled steel tube composite column structure is characterized by comprising a foundation plate; a positioning plate is assembled above the foundation plate, the two sides of the upper end face of the positioning plate are each provided with a set of pouring positioning structure, the upper end face of the bearing seat is provided with two sets of steel pipe composite column structures in a bearing mode, and a plurality of pouring grooves are formed in the exteriors of the steel pipe composite column structures in a penetrating mode; a spiral pipe structure is jointly arranged on the upper end faces of the two sets of steel pipe composite column structures in a bearing mode. Through the synergistic effect of the pouring positioning structure, the spiral pipe structure and the steel pipe composite column structure, the overall performance of the steel pipe concrete composite column is remarkably improved. The spiral pipes in the spiral pipe structure are arranged in a spiral staggered mode, the contact area of the steel pipe and concrete is increased, the bonding strength between the steel pipe and the concrete is improved, the spiral shape can effectively restrain deformation of the concrete in all directions, and the bearing capacity and ductility performance of the composite structure are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a steel-concrete composite column structure that enhances overall integrity. Background Technology

[0002] Steel-concrete composite column structure is an innovative composite structural form. It uses steel-concrete composite columns as the core load-bearing components, and the outer layer is formed by composite precast concrete components or cast-in-place concrete to form a composite section. It fully utilizes the restraining effect of steel tubes on the internal concrete and the compressive strength of concrete. At the same time, combined with the industrialization characteristics of prefabricated buildings, it has advantages such as high load-bearing capacity, good ductility, excellent seismic performance, fast construction speed, and controllable quality. It is widely used in high-rise buildings, prefabricated buildings and other engineering projects with high requirements for structural performance and construction efficiency. It is a product of the combination of traditional steel-concrete composite structure and modern prefabricated technology.

[0003] Traditional steel-concrete composite structures often employ a single interlocking method during construction. This method relies primarily on friction and simple mechanical interlocking to connect components, failing to create truly rigid joints. Under structural stress, the interlocking joints are prone to relative slippage and rotation, resulting in discontinuous force transmission paths and hindering effective synergistic load-bearing among components. Particularly under combined loads such as bending moment and shear force, the rotational stiffness of the interlocking joints is severely insufficient, significantly reducing the overall structural stiffness and impacting the structure's load-bearing capacity and deformation control.

[0004] Therefore, a steel-concrete composite column structure with enhanced integrity is proposed to solve the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a steel-concrete composite column structure with enhanced integrity, which has the advantages of increasing the stiffness of the connection nodes and increasing stability.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A reinforced steel-concrete composite column structure, including a ground base plate; A positioning plate is installed on the top of the ground substrate. A set of casting positioning structures is installed on both sides of the upper surface of the positioning plate. The two sets of casting positioning structures are arranged in parallel and a bearing seat is installed on their top. The upper end face of the bearing seat supports two sets of steel pipe composite column structures, and several casting grooves are provided through the outside of the steel pipe composite column structures; the upper end faces of the two sets of steel pipe composite column structures jointly support a spiral pipe structure. The casting positioning structure includes two limiting seats set on the positioning plate. Each of the two limiting seats has a groove, and a support seat is embedded in the groove. Positioning posts are supported on the upper surface of each of the two support seats along their lateral direction. An upper plate and a lower plate are sleeved on the outside of the positioning posts.

[0007] Furthermore, the two adjacent upper and lower discs are arranged symmetrically; a limiting seat is also slidably provided on the outside of the positioning post, and the limiting seat restricts the upper and lower discs to the outside of the positioning post.

[0008] Furthermore, both the limiting seat and the positioning plate are provided with a number of bolt holes, and each bolt hole is threaded with a connecting bolt. The limiting seat is detachably mounted on the positioning plate by means of the connecting bolts.

[0009] Furthermore, the limiting seat is U-shaped, and a limiting nut is threaded to the outside of each of the positioning posts, the limiting nut restricting the limiting seat to the outside of the positioning posts.

[0010] Furthermore, the bearing seat is mounted on the upper end face of the two limiting seats.

[0011] Furthermore, the spiral tube structure includes several spiral tubes arranged in a spiral pattern, with a concrete filling groove formed between two adjacent spiral tubes; positioning bolts are provided on both sides of the ground substrate.

[0012] In summary, the present invention has the following beneficial effects: 1. This invention significantly enhances the overall performance of steel-concrete composite columns through the synergistic effect of the casting positioning structure, the spiral tube structure, and the steel tube composite column structure. The spiral tube structure, with its multiple spiral tubes arranged in an alternating spiral pattern, not only increases the contact area between the steel tube and the concrete, improving the bond strength between them, but also effectively constrains the deformation of the concrete in all directions, forming a three-dimensional spatial constraint effect, thus greatly improving the load-bearing capacity and ductility of the composite structure.

[0013] 2. Several pouring grooves that are set through the exterior of the steel pipe composite column structure cooperate with the concrete filling groove between the spiral pipe to ensure that the concrete is poured densely and evenly distributed, thereby effectively increasing the structural strength of the concrete and improving the overall structure's compressive, bending and seismic resistance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in this embodiment; Figure 2 This is a schematic diagram of the overall installation structure of the casting and positioning structure in this embodiment; Figure 3This is a schematic diagram of the installation structure of the bearing seat on the limiting seat in this embodiment; Figure 4 This is a schematic diagram of the overall structure of the casting and positioning structure in this embodiment.

[0015] In the diagram, 1. Ground substrate; 2. Positioning bolt; 3. Positioning plate; 4. Casting positioning structure; 41. Limiting seat; 42. Connecting bolt; 43. Support seat; 44. Positioning column; 45. Upper disc; 46. Lower disc; 47. Limiting seat; 48. Limiting nut; 5. Bearing seat; 6. Steel pipe composite column structure; 7. Casting groove; 8. Spiral tube structure; 81. Spiral tube. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0018] First embodiment; Reference Figure 1-4 As shown, a steel-concrete composite column structure with enhanced integrity is provided in a preferred embodiment of the present invention, including a ground base plate 1; A positioning plate 3 is installed on the top of the base plate 1. A set of casting positioning structures 4 are installed on both sides of the upper end face of the positioning plate 3. The two sets of casting positioning structures 4 are arranged in parallel and a bearing seat 5 is installed on their top. The upper end face of the bearing seat 5 supports two sets of steel pipe composite column structures 6, and several casting grooves 7 are provided through the outside of the steel pipe composite column structures 6; the upper end faces of the two sets of steel pipe composite column structures 6 jointly support a spiral pipe structure 8. The casting positioning structure 4 includes two limiting seats 41 set on the positioning plate 3. Each of the two limiting seats 41 has a groove, and a support seat 43 is embedded in the groove. The upper end face of each of the two support seats 43 is supported by a positioning post 44 along its lateral direction. An upper plate 45 and a lower plate 46 are sleeved on the outside of the positioning posts 44.

[0019] In this embodiment, the present invention significantly enhances the overall performance of the steel-concrete composite column through the synergistic effect of the casting positioning structure 4, the spiral tube structure 8, and the steel tube composite column structure 6. The spiral tube structure 8 contains several spiral tubes 81 arranged in a staggered spiral pattern, which not only increases the contact area between the steel tube and the concrete, improving the bond strength between them, but also effectively constrains the deformation of the concrete in all directions, forming a three-dimensional spatial constraint effect, greatly improving the load-bearing capacity and ductility of the composite structure. Simultaneously, several casting grooves 7 penetrating the exterior of the steel tube composite column structure 6 cooperate with the concrete filling grooves between the spiral tubes 81 to ensure dense casting and uniform distribution of the concrete, thereby effectively increasing the structural strength of the concrete and improving the overall structure's compressive, flexural, and seismic resistance.

[0020] Second embodiment; Reference Figure 2-4 As shown, two adjacent upper discs 45 and lower discs 46 are arranged symmetrically from top to bottom; a limiting seat 47 is also slidably provided on the outside of the positioning post 44, which restricts the upper discs 45 and lower discs 46 to the outside of the positioning post 44.

[0021] In this embodiment, the two adjacent upper discs 45 and lower discs 46 are arranged symmetrically, ensuring the uniform distribution and transmission of load on the positioning column 44 and effectively avoiding stress concentration caused by eccentric force. A limiting seat 47 is also slidably provided on the outside of the positioning column 44, restricting the upper discs 45 and lower discs 46 to the outside of the positioning column 44, forming a reliable constraint mechanism. This sliding arrangement of the limiting seat 47 ensures accurate positioning of the upper discs 45 and lower discs 46 on the positioning column 44, while allowing necessary fine-tuning during construction. Simultaneously, the constraint effect of the limiting seat 47 prevents the discs from falling off or displacing under external forces, greatly improving the working stability and safety of the entire pouring positioning structure 4, and providing a solid structural guarantee for the smooth progress of subsequent concrete pouring.

[0022] Third embodiment; Reference Figure 2-4 As shown, both the limiting seat 41 and the positioning plate 3 are provided with several bolt holes, and each bolt hole is threaded with a connecting bolt 42. The limiting seat 41 is detachably mounted on the positioning plate 3 by means of the connecting bolt 42.

[0023] In this embodiment, several bolt holes are provided on both the limiting seat 41 and the positioning plate 3, and a connecting bolt 42 is threaded into each bolt hole. The limiting seat 41 is detachably mounted on the positioning plate 3 through the connecting bolt 42. This detachable connection method ensures the reliable connection strength between the limiting seat 41 and the positioning plate 3, and can withstand various loads during construction. Moreover, the detachable nature of the connecting bolt 42 makes the entire casting positioning structure 4 have good maintainability and reusability.

[0024] Fourth embodiment; Reference Figure 2-4 As shown, the limiting seat 47 is U-shaped, and the external parts of several positioning pins 44 are threaded with limiting nuts 48, which restrict the limiting seat 47 to the outside of the positioning pins 44.

[0025] In this embodiment, the U-shaped limiting seat 47 effectively constrains the positioning post 44 from three directions, preventing lateral displacement or tilting deformation of the positioning post 44 during force application, thus ensuring the accuracy and stability of positioning. The limiting nut 48 forms a mechanical lock with the positioning post 44 through a threaded connection, providing not only an adjustable limiting function but also precise position adjustment according to actual construction needs.

[0026] Fifth embodiment; Reference Figure 1-3 As shown, the support seat 5 is mounted on the upper surface of the two limiting seats 47.

[0027] In this embodiment, the bearing seat 5, through contact with the upper surfaces of the two limiting seats 47, evenly transfers the entire load of the upper steel pipe composite column structure 6 and the spiral pipe structure 8 to the lower cast-in-place positioning structure 4, avoiding stress concentration problems that may occur due to single-point force application. The symmetrical arrangement and cooperative bearing effect of the two limiting seats 47 not only ensure the horizontal stability of the bearing seat 5, but also improve the overturning resistance and lateral deformation resistance of the entire structural system.

[0028] Sixth embodiment; Reference Figure 1 As shown, the spiral tube structure 8 includes several spiral tubes 81, which are arranged in a spiral pattern and interleaved. A concrete filling groove is formed between two adjacent spiral tubes 81. Positioning bolts 2 are provided on both sides of the base plate 1.

[0029] In this embodiment, the innovative design of the spiral tube structure 8 significantly enhances the overall performance of the steel-concrete composite column. The spirally staggered spiral tubes 81 not only increase the contact area with the concrete and improve the bond strength between the steel tube and the concrete, but also the geometric features of the spiral shape effectively constrain the deformation of the concrete in all directions, forming a three-dimensional spatial constraint effect, which greatly improves the load-bearing capacity and ductility of the composite structure. The concrete filling groove between adjacent spiral tubes 81 provides a good flow channel for pouring concrete, ensuring the dense pouring and uniform distribution of the concrete.

[0030] Specific implementation process: Step 1: First, install the base plate 1 in place and ensure it is level and stable. Then, assemble the positioning plate 3 on top of the base plate 1 and fix the base plate 1 on both sides using positioning bolts 2. Next, install two sets of cast positioning structures 4 on both sides of the upper end face of the positioning plate 3. Use connecting bolts 42 to detachably fix the limiting seat 41 to the positioning plate 3, ensuring that the two sets of cast positioning structures 4 are arranged in parallel. Install the support seat 43 in the groove of the limiting seat 41. Then, support several positioning posts 44 in the horizontal direction on the upper end face of the support seat 43. Sleeve upper discs 45 and lower discs 46 on the outside of the positioning posts 44, so that the adjacent upper discs 45 and lower discs 46 are symmetrically distributed vertically. Finally, use the limiting seat 47 and limiting nut 48 to limit and fix the disc structure to the outside of the positioning posts 44. Step 2: The bearing seat 5 is placed on the upper surface of the two limiting seats 47 to ensure that the bearing seat 5 can stably bear the load transfer of the superstructure. Then, two sets of steel pipe composite column structures 6 are installed on the upper surface of the bearing seat 5. Several pouring grooves 7 are set through the outside of the steel pipe composite column structure 6. These pouring grooves 7 provide channels and anchoring for subsequent concrete pouring. Through the coordinated action of the positioning column 44, upper disc 45 and lower disc 46 in the pouring positioning structure 4, the accurate positioning and stable installation of the steel pipe composite column structure 6 are ensured. At the same time, the limiting seat 41 provides a certain buffering and adjustment function to reduce stress concentration during the installation process. Step 3: A spiral tube structure 8 is installed on the upper end face of the two sets of steel tube composite column structures 6 to jointly support the structure. The spiral tube structure 8 consists of several spiral tubes 81, which are arranged in a spiral and staggered manner, forming a concrete filling groove between adjacent spiral tubes 81. Through the cooperation of the pouring groove 7 and the concrete filling groove, concrete is poured, which fully fills the gaps in the spiral tube structure 8 and forms an integral connection with the steel tube composite column structure 6. The entire system, through the coordinated work of the pouring positioning structure 4, the spiral tube structure 8, and the steel tube composite column structure 6, effectively increases the structural strength and overall restraint effect of the concrete, ultimately achieving a significant enhancement of the integrity of the steel tube concrete composite column and improving the load-bearing capacity and seismic performance of the structure.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

[0032] All standard parts used in this invention can be purchased from the market. Irregular parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

Claims

1. A reinforced steel-concrete composite column structure, characterized in that: Including the substrate (1); A positioning plate (3) is installed on the top of the base plate (1). A set of casting positioning structures (4) is installed on both sides of the upper end face of the positioning plate (3). The two sets of casting positioning structures (4) are arranged in parallel and a bearing seat (5) is installed on their top. The upper end face of the bearing seat (5) is provided with two sets of steel pipe composite column structures (6), and several casting grooves (7) are provided through the outside of the steel pipe composite column structure (6); the upper end faces of the two sets of steel pipe composite column structures (6) are jointly provided with a spiral pipe structure (8). The casting positioning structure (4) includes two limiting seats (41) set on the positioning plate (3). Each of the two limiting seats (41) has a groove, and a support seat (43) is embedded in the groove. The upper end face of each of the two support seats (43) is supported by a positioning column (44) along its lateral direction. An upper plate (45) and a lower plate (46) are sleeved on the outside of a plurality of positioning columns (44).

2. The reinforced steel-concrete composite column structure according to claim 1, characterized in that: The two adjacent upper discs (45) and lower discs (46) are arranged symmetrically from top to bottom; a limiting seat (47) is also slidably provided on the outside of the positioning post (44), and the limiting seat (47) restricts the upper discs (45) and lower discs (46) to the outside of the positioning post (44).

3. The reinforced steel-concrete composite column structure according to claim 1, characterized in that: Both the limiting seat (41) and the positioning plate (3) are provided with a number of bolt holes, and each bolt hole is threaded with a connecting bolt (42). The limiting seat (41) is detachably mounted on the positioning plate (3) by means of the connecting bolt (42).

4. The reinforced steel-concrete composite column structure according to claim 2, characterized in that: The limiting seat (47) is U-shaped, and the external of several positioning posts (44) are threaded with limiting nuts (48), which limit the limiting seat (47) to the outside of the positioning posts (44).

5. The reinforced steel-concrete composite column structure according to claim 2, characterized in that: The bearing seat (5) is mounted on the upper surface of the two limiting seats (47).

6. The reinforced steel-concrete composite column structure according to claim 1, characterized in that: The spiral tube structure (8) includes several spiral tubes (81), which are arranged in a spiral pattern and interleaved. A concrete filling groove is formed between two adjacent spiral tubes (81). Positioning bolts (2) are provided on both sides of the base plate (1).

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