A steel-concrete composite column with reinforced concrete inner stirrups

Abstract

This utility model provides a steel-concrete composite column with an outer reinforced concrete inner stirrup structure, relating to the field of building structures. This steel-concrete composite column with an outer reinforced concrete inner stirrup structure includes: a reinforced concrete core column; a steel pipe sleeved on the outside of the reinforced concrete core column; outer stirrups surrounding the outside of the steel pipe; multiple V-shaped tie bars arranged between the steel pipe and the outer stirrups, with the V-shaped tie bars fixedly connected to both the steel pipe and the outer stirrups; and an outer reinforced concrete enclosure formed between the steel pipe and the outer stirrups, with the V-shaped tie bars formed within the outer reinforced concrete enclosure. This utility model's steel-concrete composite column with an outer reinforced concrete inner stirrup structure facilitates standardized production and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of building structures, and in particular to a steel-concrete composite column with reinforced concrete stirrups inside. Background Technology

[0002] In existing engineering structural designs, the stirrups on the steel tubes of steel-concrete composite columns are typically installed around the steel tubes. Closed stirrups are preferred. When the steel tube diameter is large or the outer concrete thickness is thin, making it difficult to install closed stirrups, tie bars are used. This approach is suitable for cases where the steel tube diameter is small and the outer concrete thickness is thick. However, for large-diameter steel-concrete composite columns, this approach results in irregular tie bar lengths, and due to volumetric stirrup ratio requirements, the stirrup diameter will be too large, making bending difficult. This poses challenges to construction and quality control, affecting construction efficiency and project quality. Utility Model Content

[0003] This utility model discloses a steel-concrete composite column with reinforced concrete inner stirrups. This steel-concrete composite column with reinforced concrete inner stirrups is easy to standardize production, improves work efficiency and ensures project quality.

[0004] This utility model discloses a steel-concrete composite column with reinforced concrete inner stirrups, which includes:

[0005] Reinforced concrete core column;

[0006] A steel pipe, which is sleeved on the outside of the reinforced concrete core column;

[0007] External stirrups, which are arranged around the outside of the steel pipe;

[0008] Multiple V-shaped tie rods are arranged in a loop between the steel pipe and the outer hoop, and the V-shaped tie rods are fixedly connected to the steel pipe and the outer hoop respectively;

[0009] The outer reinforced concrete is formed between the steel pipe and the outer hoop, and the V-shaped tie bar is formed inside the outer reinforced concrete.

[0010] As an optional implementation, the V-shaped tie rod includes a first tie rod portion, a second tie rod portion, and a third tie rod portion formed by bending. The first tie rod portion is formed at one end of the V-shaped tie rod, and the second and third tie rod portions are formed at the other end of the V-shaped tie rod. The first tie rod portion is fixed to the steel pipe, and the second and third tie rod portions are fixed to the outer hoop.

[0011] As an optional implementation, the steel-concrete composite column with an outer reinforced concrete stirrup structure further includes longitudinal additional reinforcement, which is fixed to the steel pipe, and the first tie rod is fixed to the longitudinal additional reinforcement. The additional longitudinal reinforcement can be incorporated into the longitudinal reinforcement ratio, reducing the diameter or number of outer longitudinal reinforcement bars. The increased stirrup length in the column plane allows for a smaller stirrup diameter for the same volume compared to traditional methods, facilitating construction.

[0012] As an optional implementation, the diameter of the longitudinal additional rib is greater than or equal to 16 mm.

[0013] As an optional implementation, the reinforced concrete stirrup structure surrounding the steel-concrete composite column further includes an inner ring stirrup, which connects to the longitudinal additional reinforcement and the steel pipe, and is used to attach the longitudinal additional reinforcement to the steel pipe. Additional longitudinal reinforcement is provided and fixed by the inner ring stirrup, and V-shaped tie bars are provided to connect the additional longitudinal reinforcement and the outer longitudinal reinforcement. In calculating the volumetric stirrup ratio, the stirrup volume is composed of the outer stirrups, V-shaped tie bars, and the inner ring stirrup. In calculating the longitudinal reinforcement ratio, the longitudinal reinforcement area is composed of the longitudinal additional reinforcement and the outer longitudinal reinforcement. Simultaneously, the longitudinal additional reinforcement, the inner ring stirrup, the outer stirrups, and the longitudinal reinforcement together form a reinforcing steel skeleton, which is beneficial for the steel-concrete composite column and the surrounding reinforced concrete to work together.

[0014] As an optional implementation, the outer hoop is provided with multiple fixing bars, and the second tie bar portion and the third tie bar portion of the same V-shaped tie bar are respectively fixedly connected to two adjacent fixing bars.

[0015] As an optional implementation, the second tie rod portion is configured as a first hook, and the third tie rod portion is configured as a second hook, with the first hook and the second hook respectively fixedly connected to two adjacent fixing ribs.

[0016] As an optional implementation, the first hook and the second hook are arranged opposite to each other.

[0017] As an optional implementation, the diameter of the steel pipe is greater than or equal to 2 meters.

[0018] As an optional implementation, the distance between the outer hoop and the steel pipe is greater than or equal to 400 mm.

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

[0020] This utility model provides a steel-concrete composite column with an outer reinforced concrete stirrup structure. The steel pipe is sleeved on the outside of the reinforced concrete core column, and the steel pipe and the reinforced concrete core column are arranged concentrically. V-shaped tie bars are provided between the outer stirrups and the steel pipe. The two ends of the V-shaped tie bars are fixed to the outer tie bars and the steel pipe, respectively. Reinforced concrete is formed between the outer tie bars and the steel pipe. Multiple V-shaped tie bars are provided, and these V-shaped tie bars can be set to a uniform specification to connect the outer stirrups and the steel pipe. Using uniformly sized V-shaped tie bars facilitates standardized production and improves work efficiency and project quality. In existing engineering structural designs, the outer stirrups of steel-concrete composite columns are usually set around the steel pipe. Closed stirrups are preferred. When the diameter of the steel pipe is large or the thickness of the outer concrete is thin, it is difficult to set closed stirrups, so tie bars are used. This method is suitable for steel pipes with small diameters and thicker concrete casings. However, when using this method for large-diameter steel pipe-concrete composite columns, the length of the tie bars becomes irregular, and the required stirrup diameter due to volumetric stirrup ratio leads to difficulties in bending, causing challenges in construction and quality control, and affecting construction efficiency and project quality. This invention facilitates standardized production, improves work efficiency, and ensures project quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0022] Figure 1 This is a structural schematic diagram of the steel-concrete composite column with reinforced concrete inner stirrups as disclosed in this utility model embodiment;

[0023] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 yes Figure 1 A schematic diagram of the V-shaped tie rod in the diagram.

[0025] Icons: 100, Steel-concrete composite column with reinforced concrete inner stirrups; 110, Reinforced concrete core column; 120, Steel pipe; 130, Outer stirrups; 131, Fixing reinforcement; 140, V-shaped tie bar; 141, First tie bar section; 142, Second tie bar section; 143, Third tie bar section; 150, Outer reinforced concrete; 160, Longitudinal additional reinforcement; 170, Inner ring stirrup. Detailed Implementation

[0026] 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.

[0027] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0028] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0029] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0030] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0031] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0032] Please see Figures 1 to 3 This utility model provides a steel-concrete composite column with an external reinforced concrete stirrup structure 100. This steel-concrete composite column with an external reinforced concrete stirrup structure 100 facilitates standardized production, improves work efficiency, and ensures project quality.

[0033] like Figure 1 As shown in this embodiment of the utility model, the steel-concrete composite column with reinforced concrete inner stirrup structure 100 includes: a reinforced concrete core column 110; a steel pipe 120 sleeved on the outside of the reinforced concrete core column 110; outer stirrups 130 surrounding the outside of the steel pipe 120; multiple V-shaped tie bars 140 arranged around the steel pipe 120 and the outer stirrups 130, and the V-shaped tie bars 140 are fixedly connected to the steel pipe 120 and the outer stirrups 130 respectively; and an outer reinforced concrete 150 formed between the steel pipe 120 and the outer stirrups 130, with the V-shaped tie bars 140 formed inside the outer reinforced concrete 150.

[0034] It should be noted that, in this embodiment of the utility model, the steel-concrete composite column is encased in a reinforced concrete inner stirrup structure 100, and the steel pipe 120 is sleeved on the outside of the reinforced concrete core column 110, with the steel pipe 120 and the reinforced concrete core column 110 arranged concentrically. A V-shaped tie bar 140 is provided between the outer stirrup 130 and the steel pipe 120, with both ends of the V-shaped tie bar 140 fixed to the outer tie bar and the steel pipe 120 respectively. An outer reinforced concrete outer casing 150 is formed between the outer tie bar and the steel pipe 120. In this embodiment of the utility model, the tie bar is set as a V-shaped tie bar 140, as shown below. Figure 1 As shown, there are multiple V-shaped tie rods 140, which can be set to a uniform specification to connect the outer stirrups 130 and the steel pipe 120. Using V-shaped tie rods 140 of uniform specification can facilitate standardized production, which is beneficial to improving work efficiency and project quality.

[0035] Please see Figure 3 As an optional implementation, the V-shaped tie rod 140 may include a first tie rod portion 141, a second tie rod portion 142, and a third tie rod portion 143 formed by bending. The first tie rod portion 141 is formed at one end of the V-shaped tie rod 140, and the second tie rod portion 142 and the third tie rod portion 143 are formed at the other end of the V-shaped tie rod 140. The first tie rod portion 141 is fixed to the steel pipe 120, and the second tie rod portion 142 and the third tie rod portion 143 are fixed to the outer hoop 130.

[0036] It should be noted that, in this embodiment of the invention, the first tie rod 141, the second tie rod 142, and the third tie rod 143 formed by bending respectively fix the outer hoop 130 to the steel pipe 120, and form an outer reinforced concrete 150 between the outer hoop 130 and the steel pipe 120. In this embodiment of the invention, the V-shaped tie rod 140 can be formed by bending steel bars. As an optional implementation, the second tie rod 142 can be set as the first hook, and the third tie rod 143 can be set as the second hook. The two adjacent fixing bars 131 of the first hook and the second hook are fixedly connected. That is, the second tie rod 142 and the third tie rod 143 of the V-shaped tie rod 140 can be set as hook structures to facilitate fixing the V-shaped tie rod 140 to the outer hoop 130. At the same time, in this embodiment of the invention, the first tie rod 141 is a V-shaped "hook" structure formed by bending steel bars.

[0037] Please see Figure 2 As an optional implementation, the steel-concrete composite column with reinforced concrete inner stirrup structure 100 may also include longitudinal additional reinforcement 160, which is fixed to the steel pipe 120, and the first tie rod part 141 is fixed to the longitudinal additional reinforcement 160.

[0038] It should be noted that the longitudinal additional reinforcement 160 can cooperate with the first tie part 141 to fix the V-shaped tie 140 to the steel pipe 120. When the V-shaped tie 140 is provided with the first tie part 141, the first tie part 141 can be passed through the longitudinal additional reinforcement 160, and then the second tie part 142 and the third tie part 143 of the V-shaped tie 140 can be cooperated with and fixed to the outer hoop 130 respectively.

[0039] Optionally, in this embodiment of the invention, the diameter of the longitudinal additional rib 160 is greater than or equal to 16 mm. For example, in this embodiment, the diameter of the longitudinal additional rib 160 is set to 16 mm.

[0040] It should be noted that, in this embodiment of the invention, the additional longitudinal reinforcement can be included in the longitudinal reinforcement ratio, reducing the diameter or number of outer longitudinal reinforcement bars. The increased length of the stirrups within the column plane allows for a smaller stirrup diameter compared to traditional methods, facilitating construction.

[0041] As an optional implementation, the steel-concrete composite column with reinforced concrete inner stirrup structure 100 may further include an inner ring stirrup 170, which is connected to the longitudinal additional reinforcement 160 and the steel pipe 120, and is used to place the longitudinal additional reinforcement 160 on the steel pipe 120.

[0042] It should be understood that the inner ring hoop 170 is mainly used to fix the longitudinal additional reinforcement 160 to the steel pipe 120. The inner ring hoop 170 is ring-shaped and is sleeved around the steel pipe 120 and the longitudinal additional reinforcement 160 to achieve the fixation of the longitudinal additional reinforcement 160 to the steel pipe 120, thereby facilitating the fixation of the V-shaped tie rod 140 to the steel pipe 120 through the longitudinal additional reinforcement 160.

[0043] It should be noted that in this embodiment of the utility model, the longitudinal additional reinforcement 160, the inner ring hoop 170, the outer hoop 130, and the longitudinal reinforcement together form a steel reinforcement skeleton, which is beneficial for the steel pipe 120 concrete and the outer reinforced concrete to work together.

[0044] In this embodiment of the utility model, multiple fixing ribs 131 can be provided on the outer hoop 130, and the second tie part 142 and the third tie part 143 of the same V-shaped tie 140 are respectively fixedly connected to two adjacent fixing ribs 131.

[0045] like Figure 3 As shown in the embodiment of this utility model, the second tie rod 142 and the second tie rod 142 are both configured as hooks, namely the first hook and the second hook, and the first hook and the second hook are arranged opposite to each other, which can further improve the structural stability after being fixed with the outer hoop 130.

[0046] It should be noted that the stirrup arrangement method of this utility model can be used for large-diameter steel pipe 120mm concrete composite columns, with the outer reinforced concrete 150mm being circular. In this embodiment, additional longitudinal reinforcement is provided and fixed by an inner ring stirrup 170, and V-shaped tie bars 140 are provided to connect the additional longitudinal reinforcement and the outer longitudinal reinforcement. When calculating the volumetric stirrup ratio, the stirrup volume is composed of the outer stirrup 130, the V-shaped tie bars 140, and the inner ring stirrup 170. When calculating the longitudinal reinforcement ratio, the area of ​​the longitudinal reinforcement is composed of the longitudinal additional reinforcement 160 and the outer longitudinal reinforcement. The V-shaped tie bars 140 can be set to a uniform specification, which is conducive to standardized production and improves work efficiency and project quality.

[0047] Optionally, in this embodiment, the diameter of the steel pipe 120 is greater than or equal to 2 meters, for example, the diameter of the steel pipe 120 is set to 3 meters.

[0048] Optionally, in this embodiment, the distance between the outer stirrup 130 and the steel pipe 120 is greater than or equal to 400 mm, for example, the distance between the outer stirrup 130 and the steel pipe 120 is designed to be 450 mm.

[0049] Please refer to the following: Figures 1 to 3It should be noted that in existing engineering structural designs, the outer stirrups of the 120mm steel pipe in a steel-concrete composite column are usually set around the 120mm steel pipe. Closed stirrups are preferred. When the diameter of the 120mm steel pipe is large or the outer concrete thickness is thin, it is difficult to set up closed stirrups, so tie bars are used. This approach is suitable for cases where the diameter of the 120mm steel pipe is small and the outer concrete thickness is thick. However, when using this approach for large-diameter steel-concrete composite columns, the tie bar length is irregular, and due to the volumetric stirrup ratio requirements, the stirrup diameter will be too large, making bending difficult. This will cause certain difficulties in construction and quality control, affecting construction efficiency and project quality. In this embodiment of the utility model, the steel-concrete composite column is encased in a reinforced concrete inner stirrup structure 100, with the steel pipe 120 sleeved on the outside of the reinforced concrete core column 110, and the steel pipe 120 and the reinforced concrete core column 110 are arranged concentrically. A V-shaped tie bar 140 is provided between the outer stirrup 130 and the steel pipe 120. Both ends of the V-shaped tie bar 140 are fixed to the outer stirrup and the steel pipe 120 respectively. An outer reinforced concrete enclosure 150 is formed between the outer stirrup and the steel pipe 120. Multiple V-shaped tie bars 140 are used, and these can be of a uniform specification to connect the outer stirrup 130 and the steel pipe 120. Using a uniform specification of V-shaped tie bars 140 facilitates standardized production, which is beneficial for improving work efficiency and project quality.

[0050] The above provides a detailed description of a steel-concrete composite column with reinforced concrete inner stirrups as disclosed in the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the steel-concrete composite column with reinforced concrete inner stirrups as disclosed in this utility model and its core idea. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A steel-concrete composite column with reinforced concrete inner stirrups, characterized in that, include: Reinforced concrete core column (110); A steel pipe (120) is sleeved on the outside of the reinforced concrete core column (110); The outer hoop (130) is arranged around the outside of the steel pipe (120); Multiple V-shaped tie rods (140) are arranged in a ring between the steel pipe (120) and the outer hoop (130), and the V-shaped tie rods (140) are fixedly connected to the steel pipe (120) and the outer hoop (130) respectively; The outer reinforced concrete (150) is formed between the steel pipe (120) and the outer hoop (130), and the V-shaped tie bar (140) is formed inside the outer reinforced concrete (150).

2. The steel-concrete composite column structure with reinforced concrete inner stirrups as described in claim 1, characterized in that, The V-shaped tie rod (140) includes a first tie rod portion (141), a second tie rod portion (142), and a third tie rod portion (143) formed by bending. The first tie rod portion (141) is formed at one end of the V-shaped tie rod (140), and the second tie rod portion (142) and the third tie rod portion (143) are formed at the other end of the V-shaped tie rod (140). The first tie rod portion (141) is fixed to the steel pipe (120), and the second tie rod portion (142) and the third tie rod portion (143) are fixed to the outer hoop (130).

3. The steel-concrete composite column structure with reinforced concrete inner stirrups as described in claim 2, characterized in that, The steel pipe (120) concrete composite column is encased in reinforced concrete (150) with internal stirrup structure (100), which also includes longitudinal additional reinforcement (160). The longitudinal additional reinforcement (160) is fixed to the steel pipe (120), and the first tie rod part (141) is fixed to the longitudinal additional reinforcement (160).

4. The steel-concrete composite column structure with reinforced concrete inner stirrups as described in claim 3, characterized in that, The diameter of the longitudinal additional reinforcement (160) is greater than or equal to 16 mm.

5. The steel-concrete composite column structure with reinforced concrete inner stirrups as described in claim 3, characterized in that, The steel pipe (120) concrete composite column is encased in reinforced concrete (150) with an inner stirrup structure (100), which also includes an inner ring stirrup (170). The inner ring stirrup (170) is connected to the longitudinal additional reinforcement (160) and the steel pipe (120) and is used to place the longitudinal additional reinforcement (160) on the steel pipe (120).

6. The steel-concrete composite column structure with reinforced concrete inner stirrups as described in claim 2, characterized in that, The outer hoop (130) is provided with multiple fixing bars (131), and the second tie bar part (142) and the third tie bar part (143) of the same V-shaped tie bar (140) are respectively fixedly connected to two adjacent fixing bars (131).

7. The steel-concrete composite column structure with reinforced concrete inner stirrups as described in claim 6, characterized in that, The second tie rod (142) is configured as the first hook, and the third tie rod (143) is configured as the second hook. The first hook and the second hook are respectively fixedly connected to two adjacent fixing ribs (131).

8. The steel-concrete composite column structure with reinforced concrete inner stirrups as described in claim 7, characterized in that, The first hook and the second hook are positioned opposite each other.

9. The steel-concrete composite column structure with reinforced concrete inner stirrups according to any one of claims 1-8, characterized in that, The diameter of the steel pipe (120) is greater than or equal to 2 meters.

10. The steel-concrete composite column structure with reinforced concrete inner stirrups according to any one of claims 1-8, characterized in that, The distance between the outer hoop (130) and the steel pipe (120) is greater than or equal to 400 mm.

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