Steel formwork concrete composite single column standard section

Abstract

The application relates to a steel formwork concrete combination one-word column standard section, which comprises a rectangular steel plate shell and connecting formworks arranged on the upper and lower end faces of the steel plate shell, a grouting opening for pouring concrete into the steel plate shell or the lower inter-columnar column is arranged on the connecting formwork, a vent hole is arranged at the upper opening corner position of the steel plate shell, the vent hole is communicated between the inside and the outside of the steel plate shell, a supporting top plate is arranged at the upper end of each top corner on the inside of the steel plate shell, an acute angle is formed between the supporting top plate and the adjacent two side plates of the steel plate shell, the supporting top plate is connected with the two side plates of the steel plate shell through two side edges, and a gas discharge channel communicated with the vent hole is formed between the supporting top plate and the two side plates of the steel plate shell. The structure can discharge the air in the inter-columnar column through the vent hole, reduce the air in the concrete, reduce the generation of air bubbles, and guarantee the pouring quality and structural strength of the concrete inter-columnar column.

Description

Technical Field

[0001] This application relates to the field of prefabricated buildings, and in particular to a standard section of a steel-formed concrete composite straight column. Background Technology

[0002] Currently, my country's housing industrialization process is accelerating, and the government has introduced numerous policies to encourage and develop prefabricated buildings. Steel-formed concrete structures are a type of combined steel and concrete structure that uses steel structural members as templates and pours concrete inside. Compared to traditional concrete buildings, steel-formed concrete composite structures can achieve factory production, modularization, standardization, and digital modeling. Steel-formed beam and column structures are common in steel-formed concrete composite structures, and as important supporting components, their performance directly affects the cost and safety performance of buildings.

[0003] Prefabricated steel-formed concrete composite walls effectively combine steel and concrete to form a new type of lateral force-resisting component. The concrete's strength is increased by the constraint of the steel plate, while leveraging the material advantages of lightweight, high-strength steel and high-rigidity concrete. However, currently, at the connection points of the corner walls in prefabricated steel-formed concrete composite wall structures, the wall is fixed to the inter-segment columns at the corner, with the wall and inter-segment columns being poured with concrete separately. The inter-segment columns between floors are connected as a single unit, and the floor slabs are supported jointly by the walls and inter-segment columns.

[0004] Regarding the aforementioned technologies, the inventors believe that there is a drawback: the connection of inter-floor column joints is inconvenient. Summary of the Invention

[0005] To facilitate the connection of columns between floors, this application provides a standard section of a steel formwork concrete composite straight column.

[0006] The steel formwork concrete composite straight column standard section provided in this application adopts the following technical solution:

[0007] A standard section of a steel-formed concrete composite straight column includes a rectangular steel plate shell and connecting templates disposed on the upper and lower ends of the steel plate shell. The connecting templates are provided with grouting ports for injecting concrete into the steel plate shell or into the lower inter-section column.

[0008] By adopting the above technical solution, connection templates are set at both the upper and lower ends of the steel plate shell. The connection templates can be used to connect the connection node structure to the inter-segment columns at the upper and lower ends, thus playing the role of node connection. The grouting ports set on the upper and lower sides can be used to pour concrete into the inter-segment columns and node structures from top to bottom, which facilitates the downward flow of concrete and ensures the strength of the inter-segment column structure.

[0009] Preferably, a vent is provided at the top corner of the upper opening of the steel plate shell, and the vent connects the inner and outer sides of the steel plate shell.

[0010] By adopting the above technical solution, during the process of pouring concrete into the inter-segment column, the air originally inside the inter-segment column is easily squeezed inside and difficult to be discharged. Ventilation holes are set at the joint of the inter-segment column, which can be used to discharge the air inside the inter-segment column, reduce the air in the concrete, reduce the generation of air bubbles, and ensure the pouring quality and structural strength of the concrete inter-segment column.

[0011] Preferably, a supporting top plate is provided at the upper end of the inner corner of the steel plate shell. The upper surface of the supporting top plate is flush with the upper end of the steel plate shell and abuts against the connecting template at the upper end of the steel plate shell.

[0012] By adopting the above technical solution, a supporting top plate is set on the top of the steel plate shell to support the connecting template, which can not only enhance the structural strength of the upper side of the steel plate shell, but also enhance the support strength of the connecting template and reduce the degree of deformation of the connecting template under pressure.

[0013] Preferably, the supporting top plate and the two adjacent steel plate shell side plates connected thereto form an acute angle. The supporting top plate is connected to the two side plates of the steel plate shell through two side edges, and forms a venting channel connecting to the vent hole between the supporting top plate and the two side plates of the steel plate shell.

[0014] By adopting the above technical solution, the support top plate is fixed at an acute angle to the side wall of the steel plate shell, which forms a venting channel between the angle and the steel plate shell. This effectively prevents concrete from overflowing from the vent, reduces the chance of the vent being blocked, and ensures the normal venting process.

[0015] Preferably, a supporting base plate is provided at the lower end of the inner top corner of the steel plate shell. The supporting base plate and the supporting top plate are symmetrically arranged above and below each other. The lower surface of the supporting base plate is flush with the lower end face of the steel plate shell and abuts against the connecting template at the lower end of the steel plate shell.

[0016] By adopting the above technical solution, a supporting base plate is set at the bottom of the steel plate shell to support the connecting template. This can not only enhance the structural strength of the lower side of the steel plate shell, but also enhance the support strength of the connecting template, reduce the degree of deformation of the connecting template under pressure, and ensure the smooth flow of the grouting port and the connection area at the grouting port of the concrete inter-section column.

[0017] Preferably, the connecting template includes an upper template and a lower template. The outer contours of the upper template and the lower template are the same size and larger than the outer contour of the steel plate shell, protruding outward from the outer edge of the steel plate shell.

[0018] By adopting the above technical solution, the outer contours of the upper and lower templates are larger than the outer contours of the steel plate shell. When connecting the templates to the inter-segment column structure, it is ensured that the end face of the inter-segment column is completely fixed on the connecting template, thereby ensuring a high connection strength between the inter-segment columns and the inter-segment column connection node structure.

[0019] Preferably, the lower surface of the upper template is provided with four upper positioning strips forming a rectangular frame. The four upper positioning strips are parallel to the four sides of the grouting port on the upper template, and the four upper positioning strips abut against the four inner walls of the steel plate shell.

[0020] By adopting the above technical solution, an upper positioning strip is set on the lower surface of the upper template, which facilitates the positioning of the upper template when fixing it to the steel plate shell, ensuring that the width of the upper template protruding around the steel plate shell is more uniform, and ensuring the connection quality between the upper template and the steel plate shell and the connection quality of the inter-segment columns.

[0021] Preferably, the upper and lower surfaces of the lower template are provided with four lower positioning strips forming a rectangular frame. The positions of the lower positioning strips correspond vertically to the positions of the upper positioning strips and abut against the four inner walls of the steel plate shell or the four inner walls of the inter-segment column shell.

[0022] By adopting the above technical solution, the lower positioning strips set on the upper and lower surfaces of the lower template facilitate the positioning of the lower template when fixing the lower template to the steel plate shell and when fixing the inter-section column connection node to the inter-section column. This ensures that the width of the upper template protruding around the steel plate shell is more uniform, thus guaranteeing the connection quality between the upper template and the steel plate shell and the overall connection quality of the inter-section column.

[0023] Preferably, the grouting port includes an upper grouting port on the upper template and a lower grouting port on the lower template, wherein the size of the upper grouting port is smaller than that of the lower grouting port.

[0024] By adopting the above technical solution, after the concrete enters the steel plate shell, it can quickly enter the inter-segment column, preventing excessive accumulation of concrete in the steel plate shell and causing blockage.

[0025] Preferably, two parallel stiffening plates are provided on the inner wall of one short side plate of the steel plate shell. The two ends of the stiffening plates are fixed to the inner walls of the two long side plates of the steel plate shell, and a gap is left between them and the inner wall of the other short side plate.

[0026] By adopting the above technical solution, two stiffening plates are installed inside the steel plate shell, which can not only enhance the structural strength of the steel plate shell, but also enhance the connection strength with the building beam when fixing the standard section to the building beam.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Connecting templates are installed at both the upper and lower ends of the steel plate shell. These templates connect the connecting node structure to the inter-segment columns at the upper and lower ends, thus serving as a node connection. Grouting ports are provided on both the upper and lower sides, allowing concrete to be poured from top to bottom into the inter-segment columns and node structures. This facilitates the downward flow of concrete and ensures the strength of the inter-segment column structure. Ventilation holes are provided at the top of the steel plate shell to release air from the inter-segment columns, reducing air in the concrete, minimizing the formation of air bubbles, and ensuring the pouring quality and structural strength of the concrete inter-segment columns.

[0029] 2. A supporting top plate is installed on the top of the steel plate shell to support the connecting template. This not only enhances the structural strength of the upper side of the steel plate shell, but also strengthens the support strength for the connecting template, reducing the degree of deformation of the connecting template under pressure. The supporting top plate is fixed at an acute angle to the side wall of the steel plate shell, forming a venting channel between the supporting top plate and the side wall of the steel plate shell. This effectively prevents concrete from overflowing from the venting holes, reduces the chance of the venting holes being blocked, and ensures normal venting.

[0030] 3. The upper and lower positioning strips are made of round or semi-circular steel bars, which are easy to source. At the same time, the curved surface can guide the upper and lower templates to be quickly positioned in the steel plate shell, which improves the production efficiency and quality of the inter-section column connection nodes. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0032] Figure 2 This is an exploded structural diagram of an embodiment of this application.

[0033] Figure 3 This is a structural diagram showing the connection between the steel plate shell and the supporting top plate in an embodiment of this application.

[0034] Figure 4 This is a structural diagram showing the connection between the steel plate shell and the supporting base plate in an embodiment of this application.

[0035] Figure 5 This is a schematic diagram of the upper template in the embodiments of this application.

[0036] Figure 6 This is a schematic diagram of the structure of the template in the embodiment of this application.

[0037] Figure 7 This is a schematic diagram of the internal structure of the steel plate shell in an embodiment of this application.

[0038] Explanation of reference numerals in the attached drawings: 1. Steel plate shell; 11. Vent hole; 12. Support top plate; 13. Support bottom plate; 14. Stiffening plate; 2. Connecting template; 21. Upper template; 22. Lower template; 23. Upper positioning strip; 24. Lower positioning strip; 3. Grouting port; 31. Upper grouting port; 32. Lower grouting port; 4. Venting channel. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0040] This application discloses a standard section of a steel-formed concrete composite I-shaped column. (Refer to...) Figure 1 The standard section includes a rectangular steel plate shell 1 and connecting templates 2 set on the upper and lower end faces of the steel plate shell 1. The steel plate shell 1 is welded together from four steel plates of equal thickness with parallel upper and lower end faces. The two connecting templates 2 are rectangular plates that are welded and fixed to the upper and lower end faces of the steel plate shell 1. Both connecting templates 2 are provided with grouting ports 3, which are vertically aligned. The upper grouting port 3 is used to inject concrete into the steel plate shell 1, and the lower grouting port 3 is used to inject concrete into the lower inter-segment column of the standard section.

[0041] Reference Figure 2 The connecting template 2 includes an upper template 21 and a lower template 22. The upper template 21 and the lower template 22 have the same thickness and the same outer contour size, which is larger than the outer contour size of the steel plate shell 1. They protrude outward from the outer edge of the steel plate shell 1. The outer edges of the upper template 21 and the lower template 22 are arranged at equal distances from the outer edge of the steel plate shell 1 to ensure that the end face of the inter-segment column is completely fixed on the upper template 21 or the lower template 22, thereby ensuring a high connection strength between the inter-segment column and the inter-segment column connection node structure.

[0042] The grouting port 3 includes an upper grouting port 31 set on the upper template 21 and a lower grouting port 32 set on the lower template 22. Both the upper grouting port 31 and the lower grouting port 32 are rectangular holes set along the length of the steel plate shell 1. The opening size of the upper grouting port 31 is smaller than the opening size of the lower grouting port 32. After the concrete enters the steel plate shell 1, it can quickly enter the inter-segment column through the lower grouting port 32.

[0043] Ventilation holes 11 are provided at the four apex positions of the upper opening of the steel plate shell 1. The ventilation holes 11 are notches formed by cutting off the four apex corners of the side walls of the steel plate shell 1, which connect the inner and outer sides of the steel plate shell 1 and play a role in ventilation. The air inside the inter-segment column is discharged through the ventilation holes 11, reducing the air in the concrete, reducing the generation of air bubbles, and ensuring the pouring quality and structural strength of the concrete inter-segment column.

[0044] Reference Figure 2 and 3Each inner apex corner of the steel plate shell 1 is provided with a supporting top plate 12. The supporting top plate 12 is a right-angled triangular plate with a thickness greater than that of the side plates of the steel plate shell 1. One right-angled side of the supporting top plate 12 is the upper surface, which is flush with the upper surface of the steel plate shell 1 and abuts against the lower surface of the upper template 21 to support the upper template 21. The supporting top plate 12 is also connected to two adjacent side plates of the steel plate shell 1, and forms an acute angle with each side plate. In this embodiment, the included angles on both sides of the supporting top plate 12 are 45°. The supporting top plate 12 is welded and fixed to the two side plates of the steel plate shell 1 through the two side edges of the other right-angled side, forming an air venting channel 4 between the supporting top plate 1 and the two side plates of the steel plate shell 1. The air venting channel 4 is connected to the vent hole 11, and the air in the inter-segment column and the inter-segment column connection node is led out through the air venting channel 4 to be discharged. At the same time, the supporting top plate 12 should be able to protect the air venting channel 4 and the vent hole 11 to prevent them from being blocked by stones in the concrete.

[0045] Reference Figure 4 A support base plate 13 is provided at the lower end of the inner corner of the steel plate shell 1. The support base plate 13 has the same structure as the support top plate 12 and is symmetrically arranged. The lower surface of the support base plate 13 is a right-angled side, which is flush with the lower end face of the steel plate shell 1 and abuts against the upper surface of the lower template 22. The support base plate 13 can guide larger particles in the concrete to flow to the grouting port 32 and avoid accumulation at the lower end of the inner corner of the steel plate shell 1.

[0046] Reference Figure 2 and 5 The lower surface of the upper template 21 is provided with four upper positioning strips 23 forming a rectangular frame. The four upper positioning strips 23 are parallel to the four sides of the upper grouting port 31. The upper positioning strips 23 are made of round steel bars or semi-circular steel bars, which are easy to obtain. At the same time, the curved surface can guide the upper and lower templates to be quickly positioned into the steel plate shell, improving the production efficiency and quality of the inter-segment column connection node. In this embodiment, semi-circular steel bars are used and welded to the lower surface of the upper template 21. The side of the upper positioning strip 23 facing away from the upper template 21 is an arc surface. When fixing the upper template 21 to the steel plate shell 1, it is convenient to guide and position the upper template 21, so that the four upper positioning strips 23 abut against the four inner walls of the steel plate shell 1 respectively. In order not to affect the supporting effect of the supporting top plate 12 on the upper template 21, the included angle of two adjacent upper positioning strips 23 is broken to form a relief groove, which can accommodate the insertion of the supporting top plate 12.

[0047] Reference Figure 4 and 6The lower template 22 has four lower positioning strips 24 forming a rectangular frame on both its upper and lower surfaces. The positions of the lower positioning strips 24 correspond vertically to the positions of the upper positioning strips 23. The lower positioning strips 24 are made of semi-circular steel bars and are welded to the upper and lower surfaces of the lower template 22. When fixing the lower template 22 to the steel plate shell 1, it facilitates the guidance and positioning of the steel plate shell 1, so that the four lower positioning strips 24 on the upper surface of the lower template 22 abut against the four inner walls of the steel plate shell 1 respectively. When fixing the inter-segment column connection node structure to the inter-segment column, it facilitates the guidance and positioning of the inter-segment column connection node structure, so that the four lower positioning strips 24 on the lower surface of the lower template 22 abut against the four inner walls of the inter-segment column respectively.

[0048] Reference Figure 7 Two parallel stiffening plates 14 are welded to the inner wall of one short side plate of the steel plate shell 1. The two stiffening plates 14 are set parallel to the connecting template 2. The two ends of the stiffening plates 14 are fixed to the inner walls of the two long side plates of the steel plate shell 1, and a gap is left between them and the inner wall of the other short side plate to facilitate the passage of grouting concrete. In this embodiment, the overall height of the steel plate shell 1 is 80cm. The setting height of the two stiffening plates 14 corresponds to the position of the upper and lower side plates of the building beam fixed on the standard section. In this embodiment, the distance between the upper and lower side plates of the building beam is 40cm. The two stiffening plates 14 are fixed at heights of 20cm and 60cm on the steel plate shell 1.

[0049] The implementation principle of a steel-formed concrete composite straight column standard section in this application embodiment is as follows: the standard section is fixed to the upper end face of the inter-section column by welding the lower template, and is secured to the opening on the inter-section column by four lower positioning strips 24; after the inter-section column structure is assembled, concrete is poured into the steel plate shell 1 through the upper grouting port 31 during concrete pouring, and the concrete enters the inter-section column through the lower grouting port 32. As the concrete height increases, the air inside the inter-section column will be squeezed out. The air is gradually discharged through the upper grouting port 31 and the air release channel 4, reducing the residual air inside the inter-section column and reducing the generation of air bubbles in the concrete, thereby improving the structural strength of the steel column concrete.

[0050] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel formwork concrete composite single column standard section, characterized by: The utility model relates to a steel plate shell (1) and the connecting template (2) of setting on the upper and lower end surface of steel plate shell (1), the connecting template (2) on the upper end surface of steel plate shell (1) is provided with the grouting mouth (3) of pouring concrete to the steel plate shell (1) or its lower part intercolumniation post, The upper opening top corner position of the steel plate shell (1) is provided with the vent hole (11) that communicates both sides inside and outside the steel plate shell (1), The upper end of the inside top corner of the steel plate shell (1) is provided with the support top plate (12), the upper surface of support top plate (12) is flush with the upper end surface of steel plate shell (1), and is abutted on the connecting template (2) of the upper end of steel plate shell (1), The support top plate (12) and the adjacent two steel plate shells (1) side plate between being connected are all acute angle included angle, the support top plate (12) is connected with the two side plates of steel plate shell (1) through two side edges, and forms the air release channel (4) that communicates to the vent hole (11) between the two side plates of steel plate shell (1), The lower end of the inside top corner of the steel plate shell (1) is provided with the support bottom plate (13), the support bottom plate (13) is provided with symmetry with support top plate (12) up and down, the lower surface of support bottom plate (13) is flush with the lower end surface of steel plate shell (1), and is abutted on the connecting template (2) of the lower end of steel plate shell (1), The connecting template (2) includes the upper template (21) and lower template (22), the outer contour size of upper template (21) and lower template (22) is same, and is greater than the outer contour size of steel plate shell (1), and is protruded from the outer contour of steel plate shell (1) outwardly, The grouting mouth (3) includes the upper grouting mouth (31) of setting on the upper template (21) and the lower grouting mouth (32) of setting on the lower template (22), and the size of the upper grouting mouth (31) is less than the lower grouting mouth (32).

2. A steel formwork concrete composite single column standard section according to claim 1, characterized in that: The lower surface of the upper template (21) is provided with four upper positioning strips (23) that form a rectangular frame, four upper positioning strips (23) are parallel with the four side edges of the grouting mouth (3) on the upper template (21), and four upper positioning strips (23) are abutted on the four inner walls of the steel plate shell (1).

3. A steel formwork concrete composite single column standard section according to claim 2, characterized in that: The upper and lower surfaces of the lower template (22) are provided with four lower positioning strips (24) that form a rectangular frame, the positions of the lower positioning strips (24) correspond to the positions of the upper positioning strips (23) up and down, and are abutted on the four inner walls of the steel plate shell (1) or the four inner walls of the intercolumniation shell.

4. The steel formwork concrete composite single column standard section according to claim 1, characterized in that: The inner wall of the one side short side plate of the steel plate shell (1) is provided with two upper and lower parallel stiffening plates (14), the two ends of the stiffening plate (14) are fixed with the inner walls of the two side long side plates of the steel plate shell (1), and a gap is left between the inner wall of the other side short side plate.

Images