Steel reinforced concrete column

Abstract

The utility model discloses a steel reinforced concrete column, which relates to the technical field of building structures and comprises a steel structural member, the cross section of the steel structural member is C-shaped, the steel structural member is arranged along the vertical direction, a side sealing plate is fixed at a side opening of the steel structural member, and a bottom sealing plate is fixed at a bottom opening of the steel structural member; the number of the profile steel components is two, and the two profile steel components are arranged in a back-to-back mode and fixedly connected through the connecting assembly. The two profile steel members are cold-formed thin-walled profile steel members, and ceramsite concrete is poured in the two profile steel members. The steel reinforced concrete column not only has the advantages of high bearing capacity, good anti-seismic performance, good fireproof performance, environment-friendly materials and the like, but also is lighter than other steel reinforced concrete columns in self weight, and is beneficial to reducing the bearing capacity of a foundation.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a steel-concrete composite column. Background Technology

[0002] Steel-concrete composite columns possess advantages such as high load-bearing capacity, strong fire resistance, and good seismic performance, and are widely used in my country's building structure field. In traditional steel-concrete composite column construction, since the outer steel structure is pre-fabricated, stirrups are used to connect the steel sections and longitudinal reinforcement before pouring concrete. As a frame node, the column is a crucial component for transferring roof and floor loads. According to the design principle of "strong column, weak beam; strong shear, weak bending; strong node, weak component," dense reinforcement is required in these locations. However, dense reinforcement can easily cause conflicts between the reinforcing bars, severely affecting concrete pouring and even leading to cracking of the concrete component, significantly impacting its load-bearing capacity.

[0003] Since its inception, ordinary concrete has been widely used due to its high load-bearing capacity and durability. However, its high density and weight mean that using it to construct concrete components would result in a greater bearing capacity of the foundation. Furthermore, traditional concrete frame structures have long suffered from high pollution and high energy consumption. Since the "dual-carbon" policy was introduced, the civil engineering industry has been actively seeking ways to reduce energy consumption and pollution. Besides applying intelligent construction technologies, using environmentally friendly materials is another method; that is, traditional concrete can be replaced by more environmentally friendly and green concrete, thereby promoting sustainable development.

[0004] It is evident that providing a new type of steel-concrete composite column that possesses high strength and quality, a reasonable cross-sectional shape, and is more economical than traditional steel-concrete composite columns while meeting the requirements of "green building" is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to provide a steel-concrete composite column to solve the problems existing in the above-mentioned related technologies. It not only has the advantages of high load-bearing capacity, good seismic performance, good fire resistance and environmentally friendly materials, but also has a lighter self-weight than traditional steel-concrete composite columns, which is conducive to reducing the bearing capacity of the foundation.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a steel-concrete composite column, including steel components with a C-shaped cross-section and arranged vertically. A side sealing plate is fixed to the side opening of the steel component, and a bottom sealing plate is fixed to the bottom opening. Two steel components are provided, arranged back-to-back and fixedly connected by a connecting assembly. Both steel components are cold-formed thin-walled steel components, and both are filled with lightweight aggregate concrete.

[0008] Preferably, the steel section includes a web, a first flange, and a second flange. The web extends vertically. The first flange is perpendicularly disposed on a first side of the web, and the side of the first flange away from the web is bent inward to form a first rolled edge, which is parallel to the web. The second flange is perpendicularly disposed on a second side of the web, and the side of the second flange away from the web is bent inward to form a second rolled edge, which is parallel to the web.

[0009] Preferably, the width of the web is 200mm; the width of the first flange and the second flange is 100mm; and the width of the first rolled edge and the second rolled edge is 30mm.

[0010] Preferably, the thickness of the web, the first flange, the second flange, the first rolled edge, and the second rolled edge is all 2 mm.

[0011] Preferably, the side sealing plate is a strip steel plate extending in the horizontal direction; one end of the side sealing plate of any of the steel components is welded to the corresponding first rolled edge, and the other end is welded to the corresponding second rolled edge.

[0012] Preferably, each of the steel profile components has multiple side sealing plates, and all the side sealing plates of each steel profile component are evenly distributed from top to bottom between the corresponding first rolled edge and second rolled edge.

[0013] Preferably, the connecting assembly includes a connecting plate disposed between the two steel profiles and connected to the two steel profiles by bolts.

[0014] Preferably, the connecting plate is a strip steel plate extending in the horizontal direction, and each end of the connecting plate is fixedly connected to the two steel components by a bolt.

[0015] Preferably, multiple connecting plates are provided, and all the connecting plates are evenly distributed from top to bottom between the two steel components.

[0016] Preferably, the bottom sealing plate is a rectangular steel plate, and the bottom sealing plate is welded to the bottom of the two steel components.

[0017] This utility model achieves the following technical advantages compared to related technologies:

[0018] First, the steel profile provided by this utility model is made of cold-formed thin-walled steel, which is an economical and lightweight thin-walled steel material. Compared with traditional hot-rolled steel, cold-formed thin-walled steel has significant advantages in many aspects. This material is lighter in weight, and the C-shaped section design of the steel profile is both economical and reasonable. The installation process of the steel profile is also very simple. In addition, it can significantly improve the overall performance of the house and has excellent seismic resistance.

[0019] Secondly, it is conducive to industrial production. Because the structure of this utility model is simple, and the steel-concrete composite column is an important node of the concrete frame structure, the components can be prefabricated in the factory, reducing costs.

[0020] Third, it reduces the cost of foundation construction. Since this utility model uses ceramsite concrete, which has a lower density than ordinary concrete, using ceramsite concrete to construct steel-concrete columns helps to reduce the building's self-weight, reduce the load on the foundation and the seismic action, and lower the difficulty and cost of foundation construction.

[0021] Fourth, it has good fire resistance. Lightweight aggregate concrete has good fire resistance and a high fire resistance limit temperature, which can effectively reduce the damage of fire to building structures.

[0022] Fifth, environmental protection. Lightweight aggregate concrete is an environmentally friendly building material. The main sources of the lightweight aggregate in it are industrial by-products and domestic waste. Using lightweight aggregate concrete can reduce environmental pollution, realize the recycling of waste, and help protect the environment and achieve green building. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, 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.

[0024] Figure 1 A schematic diagram of a steel-concrete composite column provided for an embodiment of this utility model;

[0025] Figure 2 A front view of a steel-concrete composite column provided in an embodiment of this utility model;

[0026] Figure 3A top view of a steel-concrete composite column provided for an embodiment of this utility model;

[0027] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0028] Figure 5 This is a schematic diagram of a steel profile provided in an embodiment of the present utility model.

[0029] In the figure: 1-steel structure, 101-web plate, 102-first flange plate, 103-second flange plate, 104-first rolled edge, 105-second rolled edge, 2-side sealing plate, 3-bottom sealing plate, 4-ceramic concrete, 5-connecting plate, 6-bolt. Detailed Implementation

[0030] 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.

[0031] The purpose of this utility model is to provide a steel-concrete composite column to solve the problems existing in related technologies. It not only has the advantages of high load-bearing capacity, good seismic performance, good fire resistance and environmentally friendly materials, but also has a lighter self-weight than traditional steel-concrete composite columns, which is conducive to reducing the bearing capacity of the foundation.

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1-4 As shown, this embodiment provides a steel-concrete composite column, including a steel component 1 with a C-shaped cross-section, and the steel component 1 is arranged vertically. A side sealing plate 2 is fixed to the side opening of the steel component 1, and a bottom sealing plate 3 is fixed to the bottom opening of the steel component 1. Two steel components 1 are provided, arranged back to back, and fixedly connected by a connecting component. Both steel components 1 are cold-formed thin-walled steel components, and both steel components 1 are filled with ceramsite concrete 4. The steel-concrete composite column provided in this embodiment not only has the advantages of high load-bearing capacity, good seismic performance, good fire resistance, and environmentally friendly materials, but also has a lighter self-weight than traditional steel-concrete composite columns, which is beneficial to reducing the bearing capacity of the foundation.

[0034] In this embodiment, as Figure 5As shown, the steel member 1 includes a web 101, a first flange 102, and a second flange 103. The web 101 extends vertically. The first flange 102 is vertically disposed on the first side of the web 101, and the side of the first flange 102 away from the web 101 is bent inward to form a first rolled edge 104, which is parallel to the web 101. The second flange 103 is vertically disposed on the second side of the web 101, and the side of the second flange 103 away from the web 101 is bent inward to form a second rolled edge 105, which is parallel to the web 101. That is, through the arrangement of the web 101, the first flange 102, the second flange 103, the first rolled edge 104, and the second rolled edge 105, the cross-section of the steel member 1 is C-shaped, which is beneficial to increasing the strength of the steel member 1 and also facilitates installation.

[0035] In this embodiment, the width of the web 101 is 200mm; the width of the first flange 102 and the second flange 103 is 100mm; the width of the first rolled edge 104 and the second rolled edge 105 is 30mm; experimental analysis shows that the steel-concrete composite column with the above dimensions has high strength and quality.

[0036] In this embodiment, the thickness of the web 101, the first flange 102, the second flange 103, the first rolled edge 104, and the second rolled edge 105 is all 2 mm.

[0037] In this embodiment, the side sealing plate 2 is a strip steel plate extending in the horizontal direction; one end of the side sealing plate 2 of any steel component 1 is welded to the corresponding first rolled edge 104, and the other end is welded to the corresponding second rolled edge 105; since the ceramsite concrete 4 inside the steel component 1 may separate from the first rolled edge 104 and the second rolled edge 105, the side sealing plate 2 is welded to the first rolled edge 104 and the second rolled edge 105 to prevent the rolled edge from separating from the internal concrete.

[0038] In this embodiment, multiple side sealing plates 2 are provided for any steel component 1, and all side sealing plates 2 of any steel component 1 are evenly distributed from top to bottom between the corresponding first rolled edge 104 and second rolled edge 105; specifically, taking a steel component 1 with a web plate 101 length of 1000mm as an example for explanation, such as Figure 2 As shown, the steel component 1 is provided with five side sealing plates 2, and the distance between adjacent side sealing plates 2 is 202.5mm. The side sealing plate 2 located at the top and the side sealing plate 2 located at the bottom are both 180mm long, 50mm wide, and 1mm thick. The side sealing plate 2 located between the top and bottom are both 180mm long, 30mm wide, and 1mm thick.

[0039] In this embodiment, the connecting assembly includes a connecting plate 5, which is disposed between two steel members 1 and connected to the two steel members 1 by bolts 6, thereby increasing the strength of the steel members 1.

[0040] In this embodiment, the connecting plate 5 is a strip steel plate extending in the horizontal direction, and each end of the connecting plate 5 is fixedly connected to two steel components 1 by a bolt 6.

[0041] In this embodiment, multiple connecting plates 5 are provided, and all connecting plates 5 are evenly distributed between the two steel members 1 from top to bottom; specifically, taking a steel member 1 with a web 101 length of 1000mm as an example for explanation, such as Figure 4 As shown, five connecting plates 5 are provided between the web plates 101 of the two steel components 1. The distance between adjacent connecting plates 5 is 185.5 mm. Each connecting plate 5 is 200 mm long, 50 mm wide, and 8 mm thick. Each connecting plate 5 is connected to the two steel components 1 by two 5.6 grade bolts. Correspondingly, two rows of bolt holes are provided on the web plate 101 of each steel component 1. Each row of bolt holes includes five bolt holes. The bolt holes on the left side are 50 mm away from the left edge of the web plate 101, and the bolt holes on the right side are 50 mm away from the right edge of the web plate 101.

[0042] In this embodiment, the bottom sealing plate 3 is a rectangular steel plate, and the bottom sealing plate 3 is welded to the bottom of the two steel components 1. Specifically, in this embodiment, the two steel components 1 share a bottom sealing plate 3 with a length of 215mm, a width of 205mm, and a thickness of 8mm. The bottom sealing plate 3 is used to seal the opening to meet the requirements of concrete pouring.

[0043] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A steel-concrete composite column, characterized in that: The type steel member includes a C-shaped cross section, and is arranged in a vertical direction, and a side sealing plate is fixed at the opening of the side of the type steel member, and a bottom sealing plate is fixed at the opening of the bottom of the type steel member; the type steel member is provided with two, and the two type steel members are arranged back to back and fixedly connected through a connecting assembly; the two type steel members are both cold-bent thin-walled type steel members, and both of the two type steel members are poured with ceramsite concrete.

2. The composite column according to claim 1, wherein: The type steel member includes a web, a first flange plate and a second flange plate, the web extends in a vertical direction, the first flange plate is arranged vertically on a first side of the web, and a first hem is formed by inwardly bending a side of the first flange plate away from the web, and the first hem is arranged parallel to the web; the second flange plate is arranged vertically on a second side of the web, and a second hem is formed by inwardly bending a side of the second flange plate away from the web, and the second hem is arranged parallel to the web.

3. The composite steel reinforced concrete column according to claim 2, wherein: The width of the web is 200 mm; the width of the first flange plate and the second flange plate is 100 mm; and the width of the first hem and the second hem is 30 mm.

4. The composite steel reinforced concrete column of claim 2, wherein: The thickness of the web, the first flange plate, the second flange plate, the first hem and the second hem is 2 mm.

5. The composite steel reinforced concrete column of claim 2, wherein: The side sealing plate is a strip-shaped steel plate extending in a horizontal direction; one end of the side sealing plate of any type steel member is welded to the corresponding first hem, and the other end is welded to the corresponding second hem.

6. The composite steel reinforced concrete column of claim 5, wherein: The side sealing plate of any type steel member is provided with a plurality of side sealing plates, and all the side sealing plates of any type steel member are arranged between the corresponding first hem and the second hem from top to bottom.

7. The composite steel reinforced concrete column of claim 1, wherein: The connecting assembly includes a connecting plate arranged between the two type steel members and connecting the two type steel members through bolts.

8. The composite steel reinforced concrete column according to claim 7, wherein: The connecting plate is a strip-shaped steel plate extending in a horizontal direction, and the two ends of the connecting plate are fixedly connected to the two type steel members through the bolts.

9. The composite steel reinforced concrete column according to claim 8, wherein: The connecting plate is provided with a plurality of connecting plates, and all the connecting plates are arranged between the two type steel members from top to bottom.

10. The composite column according to claim 1, wherein: The bottom sealing plate is a rectangular steel plate, and the bottom sealing plate is welded and connected to the bottom of the two type steel members.

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