CN211058142U - Take novel connection structure's shaped steel concrete frame post - Google Patents
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- CN211058142U CN211058142U CN201921803942.8U CN201921803942U CN211058142U CN 211058142 U CN211058142 U CN 211058142U CN 201921803942 U CN201921803942 U CN 201921803942U CN 211058142 U CN211058142 U CN 211058142U
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Abstract
The utility model provides a take novel connection structure's shaped steel concrete frame post, including shaped steel concrete column, longitudinal reinforcement, the interior shaped steel flange of post, the interior shaped steel web of post, stirrup connector, shaped steel concrete column constitution shaped steel concrete frame post's outside support, set up a plurality of longitudinal reinforcement on the four sides inner wall of support, the centre sets up the interior shaped steel web of post, the tip of the interior shaped steel web of post sets up the interior shaped steel flange of post, the stirrup connector passes through stud welding on the interior shaped steel web of post or the interior shaped steel flange of post, the stirrup is equipped with a plurality ofly, the one end of stirrup is passed through the stirrup connector and is connected with the interior shaped steel web of post, and the other end is connected fixed constitution steel keel frame with longitudinal reinforcement. The utility model simplifies the construction process and improves the construction efficiency; meanwhile, the mechanical interlocking effect of the profile steel and the concrete in the column is enhanced, and the cooperative work performance of the profile steel and the concrete is improved, so that the overall anti-seismic performance of the structure is improved.
Description
Technical Field
The utility model relates to a building technical field specifically, relates to a take novel connection structure's shaped steel concrete frame post.
Background
The Steel Reinforced Concrete (SRC) structure is one of the main forms of steel-concrete composite structures. The steel reinforced concrete column is the main stressed member in the SRC structure and is also known as steel reinforced concrete column. The steel reinforced concrete frame column is generally used for high-rise or super high-rise building structures in earthquake high-intensity fortification areas. Compared with the common steel column, the section steel concrete column can save a large amount of steel, can increase the section rigidity, overcomes the defects of poor fire resistance and durability, easy buckling and instability and the like of a steel structure, and fully exerts the performance of the steel. Compared with the common Reinforced Concrete (RC) column, the steel distribution rate of the steel reinforced concrete column is much higher than that of the common reinforced concrete column, so that more steel can be configured in a limited cross-sectional area, and the bearing capacity of the steel reinforced concrete column is far higher than that of the common reinforced concrete column with the same cross-sectional size. In addition, the steel skeleton has certain bearing capacity to bear the load in the construction stage, and the formwork can be hung on the steel skeleton, so that the support is omitted, the construction speed is accelerated, and the construction period is shortened. The common characteristics of the frame column are that the frame column bears large axial force, bending moment and bottom shearing force, so the reinforcement is large, the column longitudinal reinforcement and the stirrup are very dense, and the construction is very difficult especially in the joint area of the beam and the column.
However, it should be noted that the steel reinforced concrete column is provided with both the steel sections and the steel bars, so the steel sections and the steel bars are often required to be arranged in a staggered manner during construction, and during the design of the steel bars, the interrelation between the steel ribs and the steel bars, the construction sequence and the normal operation of the concrete engineering need to be considered. In particular, the problems of the steel bar penetration at the column web and the node area, the detailed size of the column section, the connection of professional construction and the like are all generated, which greatly increases the difficulty of actual construction.
At present, from other literature data such as current atlas, specification and the like at home and abroad, the research on the steel reinforced concrete column mostly relates to the stress condition around the node position, and the problems of how to connect and bind reinforcing steel bars at the node and the like. Corresponding solutions are also provided, for example, for a concrete column configured with H-shaped steel, when the prior relevant drawings in China intensively require that a stirrup passes through a web plate of the column internal shaped steel or a steel member (such as a steel beam, a steel reinforced concrete beam internal shaped steel or a steel bracket connected with a reinforced concrete beam longitudinal bar) connected with the column internal shaped steel, a hole is reserved in a factory at the corresponding position of the web plate, and the on-site hole making is strictly forbidden. However, in the steel concrete column, the stirrups are generally encrypted, the distance is generally not more than 100mm, if the hole reserving mode is adopted in a factory, the hole reserving workload is high, the steel web is greatly weakened, and meanwhile, as the stirrups are generally required to be closed, the field construction is extremely difficult, and sometimes even cannot be implemented, and the construction quality is difficult to control under the condition.
At present to shaped steel concrete column, the stirrup is generally taken two kinds of setting schemes when meetting the shaped steel web in the post:
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims at providing a section steel concrete frame column with a novel connecting structure, which is a novel construction mode provided for the problems existing in the design and construction of the stirrup of the section steel concrete column, so as to orderly solve the arrangement and connection of the stirrup in the complicated section steel concrete frame column, simplify the construction process and improve the construction efficiency; meanwhile, the mechanical interlocking effect of the profile steel and the concrete in the column is enhanced, and the cooperative work performance of the profile steel and the concrete is improved, so that the overall anti-seismic performance of the structure is improved.
According to one aspect of the utility model, a steel reinforced concrete frame column with a novel connection structure is provided, which comprises a steel reinforced concrete column (1), longitudinal steel bars (2), a column inner section steel flange (3), a column inner section steel web plate (4), stirrups (5) and stirrup connectors (6), wherein the steel reinforced concrete column (1) forms an external support of the steel reinforced concrete frame column, a plurality of longitudinal steel bars (2) are arranged on the four inner walls of the support, the column inner section steel web plate (4) is arranged in the middle of the support, the column inner section steel flange plate (3) is arranged at the end part of the column inner section steel web plate (4), the stirrup connectors (6) are welded on the column inner section steel web plate (4) or the column inner section steel flange plate (3) through stud welding, a plurality of stirrups (5) are arranged, one end of each stirrup (5) is connected with the column inner section steel web plate (4) through the stirrup connectors (6), the other end is connected and fixed with the longitudinal steel bar (2) to form a steel bar keel frame. Only part of the longitudinal steel bars (2) are connected with the stirrups (5).
Preferably, a plurality of stirrup connectors (6) are arranged on two side walls of the inner section steel web (4) of the column.
Preferably, the stirrup connector (6) is made of D14 or D16 round steel.
Preferably, the stirrup connector (6) is of a V-shaped structure, L-shaped structure or V-shaped truss rib structure.
Preferably, the stirrup connector (6) is of a 60-degree V-shaped structure.
Preferably, the stirrup connector (6) is in a 45-degree L-shaped structure.
Preferably, the column inner section steel web (4) is of a cross structure, and column inner section steel flanges (3) are arranged at the ends of the column inner section steel web (4) at the front, back, left and right positions.
Preferably, the end part of the stirrup (5) connected with the stirrup connector (6) is of a U-shaped structure, and the stirrup (5) is hooked on the stirrup connector (6).
The construction steps of the utility model are that firstly, the stirrup connector is manufactured in factory (generally adopting D14 or D16 round steel to be made into 60-degree V-shaped or 45-degree L-shaped), secondly, the stirrup connector is welded on the column inner-shaped steel web or the column inner-shaped steel flange in factory through stud welding, and thirdly, the longitudinal steel bar and the stirrup connector are connected through the stirrup at construction site to form the steel bar keel frame.
The utility model discloses a structure is on shaped steel concrete column (eccentric pressurized or eccentric is drawn) inclined section receives shear bearing capacity theoretical calculation's basis, according to the theoretical guidance of shaped steel concrete eccentric anti-shear bearing capacity computational formula who is drawn the compression column and the construction practice of concrete engineering proposes.
The utility model discloses not only can not produce the weakening to shaped steel web or edge of a wing in the post, but also can strengthen the mechanical interlock effect of shaped steel and concrete in the post, be because need not trompil on shaped steel web or the shaped steel edge of a wing in the post, consequently it can not cause any influence to shaped steel bearing capacity itself, V-arrangement or L shape stirrup connector can play or the effect that the part replaced the peg simultaneously, in addition, according to its bias section of the medium-sized steel concrete column of "integrated configuration design standard" JGJ138-2016 6.2.16 under eccentric pressurized state receives shear capacity computational formula:
equation 1: vc is less than or equal to 1.75/(lambda +1) ftbh0+ fyvAsv/s h0+0.58 fathww +0.07N
When a 60-degree stirrup connector is adopted, the area As of the connecting ribs is As follows: as √ 3 √ Asv/3
From the above calculation formula 1, it can be known that the shear bearing capacity of the oblique section of the steel concrete column is only related to concrete, stirrup, steel web and axial pressure, and is not related to other factors. Because the shaped steel web has not weakened in the post when adopting the stirrup connector, and the shaped steel web has produced very big horizontal restraint to its inside concrete again in stirrup and stirrup connector and the post, consequently adopts the utility model discloses a stirrup structure not only site operation is convenient, has certain improvement to the shearing bearing capacity of shaped steel post moreover.
In addition the utility model discloses also can be used for solving shaped steel roof beam or the regional stirrup construction difficulty's of roof beam, post node problem, its implementation method and theoretical foundation can all refer to above.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model relates to a section steel concrete frame column with a novel connection structure, which is a novel construction mode provided for the problems existing in the design and construction of the stirrup of the section steel concrete column, so as to orderly solve the arrangement and connection of the stirrup in the complicated section steel concrete frame column, simplify the construction process and improve the construction efficiency; meanwhile, the mechanical engagement effect of the section steel and the concrete in the column is enhanced, and the cooperative working performance of the section steel and the concrete is improved, so that the overall anti-seismic performance of the structure is improved;
(2) the utility model relates to a section steel concrete frame column with a novel connecting structure, which avoids the problems that the section steel web is perforated too much in the traditional section steel concrete column in order to ensure that the column hooping form a steel keel frame (reduce the length of longitudinal bar compression and simultaneously generate effective transverse constraint action on the internal concrete), thereby causing a series of adverse design and construction;
(3) the utility model relates to a section steel concrete frame column with novel connecting structure, which not only can not weaken the column web plate, but also can enhance the mechanical interlocking function of section steel and concrete in the column, thereby improving the cooperative work performance of the section steel and the concrete;
(4) the utility model relates to a section steel concrete frame column with a novel connecting structure, which has simple structure, ingenious design and obvious effect;
(5) the steel reinforced concrete frame column with the novel connecting structure is gradually applied to multiple high-rise and super high-rise projects, and obtains good social effect and economic benefit;
(6) the utility model relates to a take novel connection structure's shaped steel concrete frame post, stirrup connector can play or the effect of partial replacement toggle nail, and stirrup connector simple structure, the cost is lower, can mill batch preparation installation, and production preparation efficiency is high;
(7) the utility model relates to a take novel connection structure's shaped steel concrete frame post, the mill need not to trompil the shaped steel web in the post, and the stirrup connector is fixed simply with the shaped steel web in the post or the shaped steel edge of a wing in the post is connected, and the on-the-spot muscle of wearing, welding are simple, and work load is very little, construction convenience;
(8) the utility model relates to a take novel connection structure's shaped steel concrete frame post, easily processing and assembly, construction convenient operation, it is with low costs, the practicality is strong, is fit for promoting on a large scale.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a typical node of a steel reinforced concrete frame column with a novel connection structure;
FIG. 2 is a schematic cross-sectional view of section A-A of FIG. 1;
in fig. 1 and 2: 1 is a steel reinforced concrete column, 2 is a longitudinal steel bar, 3 is an in-column section steel flange, 4 is an in-column section steel web, 5 is a stirrup, and 6 is a stirrup connector.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Examples
This embodiment provides a take novel connection structure's shaped steel concrete frame post, its structure details see that fig. 1 and 2 show: including type steel concrete column 1, longitudinal reinforcement 2, post interior section steel flange 3, post interior section steel web 4, stirrup 5, stirrup connector 6, type steel concrete column 1 constitutes the outside support of type steel concrete frame post, set up a plurality of longitudinal reinforcement 2 on the four sides inner wall of support, the centre sets up post interior section steel web 4, the tip of post interior section steel web 4 sets up post interior section steel flange 3, stirrup connector 6 welds on post interior section steel web 4 or post interior section steel flange 3 through the stud welding, stirrup 5 is equipped with a plurality ofly, stirrup 5's one end is passed through stirrup connector 6 and is connected with post interior section steel web 4, and the other end is connected fixedly with longitudinal reinforcement 2 and constitutes steel keel frame. Only part of the longitudinal reinforcement 2 is connected to the stirrup 5.
Furthermore, a plurality of stirrup connectors 6 are arranged on two side walls of the steel web 4 in the column.
Further, the stirrup connector 6 is made of round steel of D14 or D16.
Further, the stirrup connector 6 is of a V-shaped structure, L-shaped structure or V-shaped truss rib structure.
Further, the stirrup connector 6 has a 60-degree V-shaped configuration.
Further, the stirrup connector 6 has a 45-degree L-shaped configuration.
Further, the shaped steel web 4 is the cruciform structure in the post, the tip of the position all is provided with the shaped steel flange 3 in the post all around of shaped steel web 4 in the post.
Furthermore, the end part of the stirrup 5 connected with the stirrup connector 6 is of a U-shaped structure, and the stirrup 5 is hooked on the stirrup connector 6.
The construction steps of the utility model are that firstly, the stirrup connector is manufactured in factory (generally, the round steel of D14 or D16 can be adopted and made into 60-degree V-shaped or 45-degree L type), secondly, the stirrup connector is welded on the column inner steel web or the column inner steel flange by the factory through stud welding, and thirdly, the longitudinal steel bar and the stirrup connector are connected through the stirrup at construction site so as to form the steel bar keel frame.
The structural structure of the embodiment is provided on the basis of theoretical calculation of shear bearing capacity of an inclined section of a steel reinforced concrete column (eccentrically stressed or eccentrically tensioned), according to theoretical guidance of a shear bearing capacity calculation formula of the steel reinforced concrete eccentrically tensioned column and construction practice of specific engineering.
In addition, according to the combined structure design specification JGJ138-2016 middle-sized steel concrete column, the inclined section of the steel concrete column is subjected to a shear force calculation formula under an eccentric compression state:
equation 1: vc is less than or equal to 1.75/(lambda +1) ftbh0+ fyvAsv/s h0+0.58 fathww +0.07N
When a 60-degree stirrup connector is adopted, the area As of the connecting ribs is As follows: as √ 3 √ Asv/3
From the above calculation formula 1, it can be known that the shear bearing capacity of the oblique section of the steel concrete column is only related to concrete, stirrup, steel web and axial pressure, and is not related to other factors. Because the shaped steel web has not weakened in the post when adopting the stirrup connector, and the shaped steel web has produced very big horizontal restraint to its inside concrete again in stirrup and stirrup connector and the post, consequently adopts the utility model discloses a stirrup structure not only site operation is convenient, has certain improvement to the shearing bearing capacity of shaped steel post moreover.
In addition, the embodiment can also be used for solving the problem of difficult stirrup construction in the joint area of the section steel beam or the beam and the column, and the implementation method and the theoretical basis can refer to the above.
The embodiment has the following beneficial effects:
(1) the novel structural mode is provided aiming at the problems existing in the design and construction of the stirrup of the steel reinforced concrete column, the arrangement and the connection of the stirrup in the complicated steel reinforced concrete frame column are orderly solved, the construction process is simplified, and the construction efficiency is improved; meanwhile, the mechanical engagement effect of the section steel and the concrete in the column is enhanced, and the cooperative working performance of the section steel and the concrete is improved, so that the overall anti-seismic performance of the structure is improved;
(2) the problems that in the traditional steel reinforced concrete column, in order to ensure that the column hooping forms a steel bar keel frame (reduce the buckling length of longitudinal bars and simultaneously generate effective transverse constraint action on the concrete inside the column), the steel section web is excessively perforated, so that the design and construction are not facilitated are solved;
(3) not only can the column web not be weakened, but also the mechanical engagement action of the section steel and the concrete in the column can be enhanced, so that the cooperative working performance of the section steel and the concrete is improved;
(4) the structure is simple, the design is ingenious, and the effect is obvious;
(5) the method is gradually applied to multiple high-rise and super high-rise projects, and good social effect and economic benefit are obtained;
(6) the stirrup connector can play a role of or partially replace a stud, has a simple structure and low cost, can be manufactured and installed in batches in factories, and has high production and manufacturing efficiency;
(7) the hole is not required to be formed in the column inner section steel web plate in a factory, the stirrup connector is simply connected and fixed with the column inner section steel web plate or the column inner section steel flange, the on-site reinforcement penetrating and welding are simple, the workload is small, and the construction is convenient;
(8) the method has the advantages of easy processing and assembly, convenient construction and operation, low cost, strong practicability and suitability for large-scale popularization.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (8)
1. A steel reinforced concrete frame column with a novel connection structure is characterized by comprising a steel reinforced concrete column (1), longitudinal steel bars (2), a column inner section steel flange (3), a column inner section steel web plate (4), stirrups (5) and a stirrup connector (6), the steel reinforced concrete column (1) forms an external bracket of the steel reinforced concrete frame column, a plurality of longitudinal steel bars (2) are arranged on the four inner walls of the bracket, a steel web plate (4) in the column is arranged in the middle of the bracket, the end part of the column inner section steel web (4) is provided with a column inner section steel flange (3), the stirrup connector (6) is welded on the column inner section steel web (4) or the column inner section steel flange (3) through stud welding, the stirrup (5) are provided with a plurality of stirrups, one end of the stirrup (5) is connected with the in-column section steel web (4) through a stirrup connector (6), and the other end of the stirrup is fixedly connected with the longitudinal steel bar (2) to form a steel bar keel frame.
2. A steel reinforced concrete frame column with a novel connection structure according to claim 1, characterized in that a plurality of stirrup connectors (6) are arranged on both side walls of the steel web (4) in the column.
3. Steel reinforced concrete frame column with new connecting structure according to claim 1, characterized in that the stirrup connector (6) is made of round steel of D14 or D16.
4. Steel reinforced concrete frame column with new connecting structure according to claim 1, characterized in that the stirrup connector (6) is a V-shaped structure, L-shaped structure or V-shaped truss rib structure.
5. The reinforced concrete frame column with the novel connection structure as claimed in claim 1 or 4, wherein the stirrup connector (6) has a 60-degree V-shaped structure.
6. Steel reinforced concrete frame column with new connecting structure according to claim 1 or 4, characterized in that the stirrup connector (6) is a 45 degree L shaped structure.
7. The steel reinforced concrete frame column with the novel connecting structure as claimed in claim 1, wherein the steel web (4) in the column is of a cross structure, and the steel flanges (3) in the column are arranged at the front, back, left and right ends of the steel web (4) in the column.
8. The steel reinforced concrete frame column with the novel connecting structure as claimed in claim 1, wherein the end of the stirrup (5) connected with the stirrup connector (6) is of a U-shaped structure, and the stirrup (5) is hooked on the stirrup connector (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921803942.8U CN211058142U (en) | 2019-10-25 | 2019-10-25 | Take novel connection structure's shaped steel concrete frame post |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921803942.8U CN211058142U (en) | 2019-10-25 | 2019-10-25 | Take novel connection structure's shaped steel concrete frame post |
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| CN211058142U true CN211058142U (en) | 2020-07-21 |
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| CN201921803942.8U Active CN211058142U (en) | 2019-10-25 | 2019-10-25 | Take novel connection structure's shaped steel concrete frame post |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323271A (en) * | 2021-06-09 | 2021-08-31 | 中国建筑第八工程局有限公司 | Stiff column stirrup structure and construction method thereof |
| CN114396138A (en) * | 2022-01-18 | 2022-04-26 | 中国建筑第七工程局有限公司 | Round-section frame column stirrup connecting structure and stirrup mounting method |
-
2019
- 2019-10-25 CN CN201921803942.8U patent/CN211058142U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323271A (en) * | 2021-06-09 | 2021-08-31 | 中国建筑第八工程局有限公司 | Stiff column stirrup structure and construction method thereof |
| CN114396138A (en) * | 2022-01-18 | 2022-04-26 | 中国建筑第七工程局有限公司 | Round-section frame column stirrup connecting structure and stirrup mounting method |
| CN114396138B (en) * | 2022-01-18 | 2023-03-28 | 中国建筑第七工程局有限公司 | Round-section frame column stirrup connecting structure and stirrup mounting method |
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