Variable cross-section combined through-height column for open building
By employing a variable cross-section composite structure in the full-height columns of open buildings, combining lower steel-concrete composite columns and upper steel-concrete composite columns, the problems of high formwork costs and high material costs in the construction of full-height columns have been solved, thereby improving construction efficiency and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-20
AI Technical Summary
The construction of full-height columns in large, open buildings presents challenges due to high costs for formwork and materials, which are difficult to effectively address with existing technologies.
The structure adopts a variable cross-section composite structure, with steel-concrete composite columns at the bottom and upper steel-concrete composite columns connected above the lower steel-concrete composite columns. The lower steel-concrete composite columns are used to support the load, while the upper steel-concrete composite columns are used to transfer the load, thereby reducing the column cross-section and simplifying construction.
It reduces the cost of high-rise formwork and materials, while facilitating construction, reducing column cross-sections, and improving construction efficiency and economy.
Smart Images
Figure CN224016624U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building engineering, specifically relates to a variable cross section combined high column for open building. BACKGROUND
[0002] The statements in this section are merely provided to give background information related to the utility model and do not necessarily constitute prior art.
[0003] Large open buildings, such as gymnasiums, exhibition centers, theaters, theme parks, ski resorts, etc., have the following main features: the main structure is single-layer as a whole, but the story height is high, generally 20-50m, and locally up to 60m; the roof span is large, generally 50-100m, and locally up to 100-150m; the main structure column is generally not connected to the internal small building or is disconnected from the internal small building, thereby forming a high column.
[0004] Such high columns generally have large vertical loads and high heights. Considering the stress characteristics of the high column, generally, reinforced concrete columns or steel reinforced concrete columns or steel pipe concrete columns are used. When reinforced concrete columns are used, the material cost is low, but the column cross-sectional size is large, the building space is greatly affected, and the single column height is high, which has high formwork construction measure cost during the construction stage; although the steel reinforced concrete column can reduce the column cross section, it also has the problem of high formwork construction measure cost; although the steel pipe concrete column can avoid the problem of high formwork construction measure cost, the material cost is relatively high. Therefore, how to effectively reduce the high formwork construction measure cost and material cost of such high columns becomes a problem to be solved. CONTENT OF THE UTILITY MODEL
[0005] In view of the above problems, the utility model provides a variable cross section combined high column for open building, which uses a steel reinforced concrete column in the lower part, is convenient for on-site construction, can reduce the column cross section, and control the material cost; uses a steel pipe concrete column with a smaller cross section in the upper part than the lower part, does not need to be supported, saves the high formwork construction measure cost, and reduces part of the material cost.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A variable cross section combined high column for open building, comprising a lower steel reinforced concrete column, and an upper steel pipe concrete column connected above the lower steel reinforced concrete column;
[0008] The lower steel reinforced concrete column comprises a main steel reinforced concrete column, the bottom of the main steel reinforced concrete column is connected to a foundation, and the top is connected to a circular composite column; the upper steel pipe concrete column comprises a main steel pipe concrete column, and the bottom of the main steel pipe concrete column is connected to a square composite column;
[0009] The circular composite column comprises concrete, a square steel pipe arranged inside the concrete, a cross-shaped web connected in the square steel pipe, and a square steel core column connected with the cross-shaped web.
[0010] The square composite column comprises a square steel pipe, concrete arranged inside the square steel pipe, a cross-shaped web connected in the square steel pipe, and a square steel core column connected with the cross-shaped web.
[0011] Preferably, the main steel reinforced concrete column comprises concrete, a cross-shaped web arranged inside the concrete, and a cross-shaped steel skeleton connected at the end of the cross-shaped web; a plurality of studs are uniformly arranged on the side of the cross-shaped steel skeleton away from the cross-shaped web; and vertical steel bars are arranged outside the cross-shaped steel skeleton.
[0012] Preferably, the circular composite column is provided with a ring-shaped steel bar connecting plate at the top, and the vertical steel bars are bent at the top and fixed to the steel bar connecting plate by welding.
[0013] Preferably, the square steel core column is formed by four angle steels which are welded on four sides of the cross-shaped web by full welding; and a plurality of studs are uniformly arranged on the outside of the square steel core column.
[0014] Preferably, the main steel pipe reinforced concrete column comprises a square steel pipe and concrete inside the square steel pipe.
[0015] Preferably, the size and height of the circular composite column and the square composite column are not less than twice the width of the main steel pipe reinforced concrete column.
[0016] Preferably, a stiffening rib is arranged at the top of the square composite column, at the bottom of the circular composite column, and at the joint of the square composite column and the circular composite column, respectively.
[0017] Preferably, a pouring hole is arranged on the stiffening rib.
[0018] Preferably, when the square steel pipe is changed into the cross-shaped steel skeleton at the position where the circular composite column is connected with the main steel reinforced concrete column, a circular arc gentle transition is adopted, and the radian should not be greater than 60 degrees.
[0019] Preferably, the cross-shaped webs, the square steel pipes, and the vertical steel bars are connected in length.
[0020] Compared with the prior art, the utility model has the advantages and positive effects that:
[0021] The utility model discloses a lower part steel reinforced concrete column is used to the lower part of the through high column, and the lower part steel reinforced concrete column is used to support the roof and the large load of the upper part of the through high column, the upper part steel pipe concrete column with smaller section than the lower part steel reinforced concrete column is used to the upper part of the through high column, and the upper part steel pipe concrete column is used to transfer the upper load downward. The steel can adopt the mode of prefabricated connection, and the steel can be convenient for on -the -spot construction, and the steel can reduce the steel binding, and the steel can reduce the column section on the whole simultaneously, and the steel can control the material cost. The steel pipe can also adopt the mode of prefabricated connection, and the upper part steel pipe concrete column can be poured without formwork, and the upper part steel pipe concrete column can save the high formwork measure cost, and the upper part steel pipe concrete column can also reduce part material cost compared with the lower part steel reinforced concrete column. BRIEF DESCRIPTION OF DRAWINGS
[0022] The drawings accompanying the specification provide further understanding of the utility model, and the illustrative embodiments of the utility model and the explanation thereof are used to explain the utility model, and do not constitute improper limitation to the utility model.
[0023] Figure 1 It is the through high column constituting schematic diagram of the utility model embodiment;
[0024] Figure 2 It is the through high column each part connection schematic diagram of the utility model embodiment;
[0025] Figure 3 It is the through high column of the utility model embodiment Figure 2 The d-d section view in;
[0026] Figure 4 It is the through high column of the utility model embodiment Figure 2 The c-c section view in;
[0027] Figure 5 It is the through high column of the utility model embodiment Figure 2 The b-b section view in;
[0028] Figure 6 It is the through high column of the utility model embodiment Figure 2 The a-a section view in;
[0029] In the drawing:
[0030] 1, lower part steel reinforced concrete column;2, upper part steel pipe concrete column;3, main body steel reinforced concrete column;4, round composite column;5, square composite column;6, main body steel pipe concrete column;7, vertical reinforcement;8, reinforcement connecting plate;9, stud;10, cross-shaped steel bone;11, cross-shaped web;12, stiffening rib;13, square steel core column. DETAILED DESCRIPTION
[0031] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0032] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a variable cross-section composite full-height column for open buildings, such as... Figure 1 As shown, the structure includes a lower steel-concrete composite column 1, above which is an upper steel-concrete composite column 2. In this embodiment, the lower steel-concrete composite column 1 is a circular column, while the upper steel-concrete composite column 2 is a square column. The thickness of the outer concrete casing of the lower steel-concrete composite column 1 is generally 200-250 mm.
[0033] like Figure 2 As shown, the lower steel-concrete composite column 1 includes a main steel-concrete composite column 3 and a circular composite column 4. The bottom of the main steel-concrete composite column 3 is connected to the foundation, and the top is connected to the circular composite column 4. The upper steel-concrete composite column 2 includes a main steel-concrete composite column 6 and a square composite column 5. The bottom of the square composite column 5 is connected to the circular composite column 4, and the top is connected to the main steel-concrete composite column 6. In other words, the lower steel-concrete composite column 1 and the upper steel-concrete composite column 2 are connected by the circular composite column 4 and the square composite column 5.
[0034] like Figure 3 As shown, the main steel-concrete composite column 3 includes concrete, with a cruciform web 11 inside. Each end of the cruciform web 11 is connected to a cruciform steel frame 10, and the ends of the cruciform web 11 are perpendicular to the cruciform steel frame 10. Multiple studs 9 are evenly distributed on the side of the cruciform steel frame 10 away from the cruciform web 11. The purpose of the studs 9 is to strengthen the connection between the cruciform steel frame 10 and the concrete. Figure 2 As shown, the main steel-concrete composite column 3 also includes vertical reinforcing bars 7 set outside the cross-shaped steel frame 10. It can be understood that the main steel-concrete composite column 3 is formed by setting a cross-shaped web 11, a cross-shaped steel frame 10, studs 9, and vertical reinforcing bars 7, then enclosing and reinforcing it with formwork, and finally pouring it into concrete.
[0035] like Figure 4As shown, the circular composite column 4 includes concrete, and a cross-shaped web 11 is arranged inside the concrete, the end of the cross-shaped web 11 is connected with the pipe wall of the square steel pipe, the square steel pipe wraps the cross-shaped web 11 therein, and the end of the cross-shaped web 11 is perpendicular to the pipe wall of the square steel pipe; inside the square steel pipe, the cross-shaped web 11 is also connected with a square steel core column 13; specifically, the square steel core column 13 is formed by welding four angle steels of the same size and specification on four sides of the cross-shaped web 11 in a full-welding manner. The outer side of the square steel pipe is uniformly provided with a plurality of studs 9, and the outer side of the square steel core column 13 is also uniformly provided with a plurality of studs 9. As shown, Figure 2 As shown, the vertical steel bars 7 are also arranged inside the circular composite column 4 and outside the square steel pipe. It can be understood that the circular composite column 4 is formed by arranging the cross-shaped web 11, the square steel core column 13, the square steel pipe, the studs 9, and the vertical steel bars 7, then surrounding and reinforcing with a formwork, and finally pouring with concrete.
[0036] As shown, Figure 2 To ensure the anchoring of the vertical steel bars 7 at the top of the circular composite column 4, a ring of steel bar connecting plates 8 is arranged at the top of the circular composite column 4, the top of the vertical steel bars 7 is bent and welded and fixed with the steel bar connecting plates 8, and in this embodiment, double-sided welding 5d or single-sided welding 10d is used for fixation. Specifically, the steel bar connecting plates 8 are welded and fixed with the outer side of the square steel pipe of the circular composite column 4.
[0037] As shown, Figure 5 As shown, the square composite column 5 includes a square steel pipe, and the square steel pipe is internally provided with concrete and a cross-shaped web 11, the end of the cross-shaped web 11 is connected with the pipe wall of the square steel pipe, the square steel pipe wraps the cross-shaped web 11 therein, and the end of the cross-shaped web 11 is perpendicular to the pipe wall of the square steel pipe; inside the square steel pipe, the cross-shaped web 11 is also connected with a square steel core column 13. The difference between the square composite column 5 and the circular composite column 4 is that the square composite column 5 directly pours concrete in the square steel pipe to form. As shown, Figure 6 As shown, the main body steel pipe concrete column 6 is made of a square steel pipe and concrete inside the square steel pipe.
[0038] In this embodiment, the square steel pipe concrete column is applied to a through-high column, the cross-sectional size of such a through-high column square steel pipe concrete column is large, in order to ensure the stability of the cross-shaped web 11 in the circular composite column 4 and the square composite column 5, and to improve the ductility and energy dissipation capacity of the circular composite column 4 and the square composite column 5, a square steel core column 13 is arranged in the circular composite column 4 and the square composite column 5.
[0039] To strengthen the connection between the lower steel reinforced concrete column 1 and the upper steel pipe concrete column 2, as shown, Figure 2As shown, the size of the circular composite column 4 should not be less than twice the width of the main steel pipe concrete column 6, and the size of the square composite column 5 should not be less than twice the width of the main steel pipe concrete column 6; in this embodiment, the size of the circular composite column 4 is equal to twice the width of the main steel pipe concrete column 6, and the size of the square composite column 5 is equal to twice the width of the main steel pipe concrete column 6.
[0040] It can be understood that, in this embodiment, the cross-shaped webs 11 are connected, i.e. the cross-shaped webs 11 are arranged inside the main steel reinforced concrete column 3, the circular composite column 4, and the square composite column 5; the square steel pipes are also connected, i.e. the square steel pipes are arranged inside the main steel pipe concrete column 6, the square composite column 5, and the circular composite column 4; and the vertical steel bars are also connected, i.e. the vertical steel bars are arranged inside the main steel reinforced concrete column 3 and the circular composite column 4.
[0041] As shown in FIG. 1, Figure 2 As shown, from the square composite column 5 to the circular composite column 4, and then to the main steel reinforced concrete column 3, there is a stage of variable cross-section, in order to strengthen the stability and safety of the square composite column 5 and the circular composite column 4, a stiffening rib 12 is arranged at the top of the square composite column 5, at the bottom of the circular composite column 4, and at the joint of the square composite column 5 and the circular composite column. It should be noted that, since the pouring of the full-height column is integrally poured, i.e. from top to bottom, a pouring hole needs to be arranged on the stiffening rib 12 to ensure that the concrete can flow from the square composite column 5 to the circular composite column 4 and the main steel reinforced concrete column 3.
[0042] As shown in FIG. 1, Figure 2 , Figure 3 , Figure 4 As shown, the interiors of the circular composite column 4 and the main steel reinforced concrete column 3 are both cross-shaped webs 11, but the end of the cross-shaped web 11 of the circular composite column 4 is connected to a square steel pipe, and the end of the cross-shaped web 11 of the main steel reinforced concrete column 3 is connected to a cross-shaped steel skeleton 10. The position where the circular composite column 4 and the main steel reinforced concrete column 3 are connected is at the stage where the square steel pipe becomes the cross-shaped steel skeleton, and a circular arc should be used for the smooth transition when the square steel pipe becomes the cross-shaped steel skeleton, and the radian should not be greater than 60 degrees.
[0043] In this embodiment, the lower part of the full-height column adopts a lower steel reinforced concrete column 1, the height of which should not be greater than 15 m, for supporting the roof and a large amount of load of the upper part of the full-height column, and the upper part of the full-height column adopts an upper steel pipe concrete column 2 with a smaller cross-section than the lower steel reinforced concrete column 1, for downward transmission of the upper load. The height of the lower steel reinforced concrete column 1 should not be greater than 15 m because the cost of high formwork is relatively small within 15 m, and the cost of high formwork increases greatly when the height is greater than 15 m, so 15 m is taken as the limit.
[0044] Compared with the reinforced concrete column, the shaped steel can be prefabricated and connected, is convenient for site construction, can reduce steel binding, can reduce the column section, and can control material cost; and the height limit of 15m also reduces the high formwork measure cost of the lower shaped steel reinforced concrete column 1.
[0045] Compared with the reinforced concrete column and the shaped steel reinforced concrete column, the upper steel pipe reinforced concrete column 2 can be poured without formwork, thereby saving the high formwork measure cost; and the upper steel pipe reinforced concrete column 2 in the embodiment has a smaller section than the lower shaped steel reinforced concrete column 1, thereby also reducing part of the material cost.
[0046] The utility model discloses under the premise of not influencing the overall stress and safety of the through high column, by exerting the respective advantages of shaped steel reinforced concrete column and steel pipe reinforced concrete column, the lower part adopts the shaped steel reinforced concrete column with large section to bear most of the load, can reduce material cost, and is convenient for construction, and the upper part adopts the steel pipe reinforced concrete column with small section to transfer load, can not use formwork, and the upper steel pipe reinforced concrete column 2 is reduced the section compared with the lower shaped steel reinforced concrete column 1, also reduced part of the material cost.
[0047] The utility model discloses simple structure, convenient construction, low cost can be directly applied to the open building of through high column height in 20-50m.
[0048] The above has described the specific embodiment of the utility model in connection with the drawings, but is not the limitation of the protection scope of the utility model, and the person skilled in the art should understand that on the basis of the technical scheme of the utility model, various modifications or deformation made by the person skilled in the art without creative labor are still within the protection scope of the utility model.
Claims
1. A variable cross-section composite full-height column for open-plan buildings, characterized in that, It includes a lower steel-concrete composite column, with an upper steel-concrete composite column connected above the lower steel-concrete composite column; The lower steel-concrete composite column includes a main steel-concrete composite column, which is connected to the foundation at the bottom and to a circular composite column at the top; the upper steel-concrete composite column includes a main steel-concrete composite column, which is connected to a square composite column at the bottom. The circular composite column includes concrete, with square steel tubes inside the concrete, cross-shaped webs connected inside the square steel tubes, and the cross-shaped webs connected to the square steel core column. It also includes vertical reinforcing bars set outside the square steel tubes. The square composite column consists of square steel tubes, with concrete inside the square steel tubes, and cross-shaped webs connected inside the square steel tubes. The cross-shaped webs are connected to the square steel core column.
2. A variable cross-section composite full-height column for open-plan buildings as described in claim 1, characterized in that, The main steel-concrete composite column includes concrete, with a cross-shaped web inside the concrete, and cross-shaped steel ribs connected to the ends of the cross-shaped web; multiple studs are evenly arranged on the side of the cross-shaped steel rib away from the cross-shaped web; it also includes vertical reinforcing bars arranged on the outside of the cross-shaped steel ribs.
3. A variable cross-section composite full-height column for open buildings as described in claim 1, characterized in that, A ring of steel reinforcement connecting plates is provided at the top of the circular composite column, and the top of the vertical steel reinforcement is bent and fixed to the steel reinforcement connecting plates by welding.
4. A variable cross-section composite full-height column for open buildings as described in claim 1, characterized in that, The square steel core column is formed by welding four angle steels to the four sides of the cross-shaped web plate through full welding; multiple studs are also evenly arranged on the outer side of the square steel core column.
5. A variable cross-section composite full-height column for open buildings as described in claim 1, characterized in that, The main steel-concrete composite column includes a square steel tube and the concrete inside the square steel tube.
6. A variable cross-section composite full-height column for open buildings as described in claim 1, characterized in that, The height of both the circular and square composite columns shall not be less than twice the width of the main steel-concrete composite column.
7. A variable cross-section composite full-height column for open buildings as described in claim 1, characterized in that, A stiffening rib is provided at the top of the square composite column, the bottom of the circular composite column, and at the junction of the square composite column and the circular composite column.
8. A variable cross-section composite full-height column for open buildings as described in claim 7, characterized in that, The stiffening ribs need to be provided with casting holes.
9. A variable cross-section composite full-height column for open-plan buildings as described in claim 1, characterized in that, At the connection point between the circular composite column and the main steel-concrete composite column, when the square steel tube is transformed into a cross-shaped steel frame, a smooth arc transition should be adopted, and the arc degree should not exceed 60 degrees.
10. A variable cross-section composite full-height column for open-plan buildings as described in claim 1, characterized in that, The cross-shaped webs, square steel tubes, and vertical reinforcing bars are all connected along their entire length.