CN112482574A - Beam bottom steel bar connecting structure of stiffened concrete beam column node and construction method - Google Patents
Beam bottom steel bar connecting structure of stiffened concrete beam column node and construction method Download PDFInfo
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- CN112482574A CN112482574A CN202011445600.0A CN202011445600A CN112482574A CN 112482574 A CN112482574 A CN 112482574A CN 202011445600 A CN202011445600 A CN 202011445600A CN 112482574 A CN112482574 A CN 112482574A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
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Abstract
The invention discloses a beam bottom steel bar connecting structure of a node of a stiffened concrete beam column, which comprises a section steel column, a section steel beam, an ear plate, a first steel bar layer, a second steel bar layer, a third steel bar layer and bent anchor steel bars; the section steel beam is fixed on the outer side surface of the section steel column; the lug plates are horizontally fixed on the outer side surfaces of the section steel columns and are positioned below the section steel beams; a steel bar mounting space is formed between the ear plate and the section steel beam; the end part of the ear plate is provided with a through hole; the third steel bar layer, the first steel bar layer and the second steel bar layer are sequentially fixed on the outer side faces of the section steel columns from top to bottom, the third steel bar layer and the first steel bar layer are located in the steel bar installation space, and the second steel bar layer is located on the lower portion of the lug plate; the bent anchor steel bar is horizontally arranged at the upper part of the lug plate, and one end of the bent anchor steel bar penetrates through the through hole. According to the invention, on the basis of not influencing the structural performance, the beam bottom steel bars are arranged into three rows of steel bars, so that the problems that the through design of the positions of the beam bottom steel bars and the steel structure web and the crossed design of the steel bars and the flange plates cannot be completed are solved.
Description
Technical Field
The invention relates to the technical field of beam bottom steel bar connection at a joint part of a large-span stiff concrete beam column, in particular to a beam bottom steel bar connection structure of a joint part of a stiff concrete beam column and a construction method.
Background
The combined structural member of stiff concrete (also called steel concrete or steel reinforced concrete) is formed from concrete, section steel, longitudinal reinforcing bar and stirrup, and its basic members are beam and column. The stiff concrete composition structure comprises a structure that all structural members adopt stiff concrete and a structure that part of the structural members adopt the stiff concrete. The stiff concrete has the advantages of high strength, small size of the section of the member, strong bond force with the concrete, concrete saving, increased use space, reduced construction cost, improved engineering quality and the like. The steel structure greatly improves the ductility of the member, has strong deformation capability, good anti-seismic performance and high bearing capacity, and has good fire resistance and corrosion resistance when the outer concrete structure is adopted.
However, the arrangement of high-quantity and compact steel bars in the steel structure beam-column joint is a great problem, the arrangement of the steel bars at the joint part is difficult, the contradiction exists between the welding of the steel structure and the connection of the steel bars, and the installation difficulty is great.
Therefore, the problem that technical personnel in the field need to solve urgently is to provide a stiffening concrete beam column node beam bottom reinforcing steel bar connection structure and a construction method which are reasonably and orderly arranged.
Disclosure of Invention
In view of the above, the invention provides a beam bottom steel bar connection structure of a stiffened concrete beam-column joint and a construction method, which can be adjusted and arranged under the condition of ensuring stress, meet the requirements of on-site steel structure hoisting and steel bar connection, and facilitate construction.
In order to achieve the purpose, the invention adopts the following technical scheme:
the beam bottom steel bar connecting structure of the node of the stiffened concrete beam column comprises a section steel column, a section steel beam, an ear plate, a first steel bar layer, a second steel bar layer, a third steel bar layer and bent anchor steel bars;
the section steel column is plate-shaped;
the section steel beam is fixed on the outer side surface of the section steel column;
the lug plates are horizontally fixed on the outer side surfaces of the section steel columns and are positioned below the section steel beams; a steel bar mounting space is formed between the ear plate and the section steel beam; the end part of the ear plate is provided with a through hole;
the third reinforcing steel bar layer, the first reinforcing steel bar layer and the second reinforcing steel bar layer are sequentially fixed on the outer side faces of the section steel columns from top to bottom, the third reinforcing steel bar layer and the first reinforcing steel bar layer are located in the reinforcing steel bar installation space, and the second reinforcing steel bar layer is located below the lug plates;
the bent anchor steel bar is horizontally arranged at the upper part of the ear plate, and one end of the bent anchor steel bar penetrates through the through hole.
Further, the device also comprises a plurality of sleeves;
the first reinforcing steel bar layer comprises a plurality of first reinforcing steel bars which are positioned on the same horizontal plane and distributed at intervals, and the first reinforcing steel bars are welded on the outer side surfaces of the section steel columns in the reinforcing steel bar installation space through the end parts of the first reinforcing steel bars;
the second reinforcing steel bar layer comprises a plurality of second reinforcing steel bars which are positioned on the same horizontal plane and distributed at intervals, and the second reinforcing steel bars are welded on the outer side faces of the section steel columns positioned at the lower parts of the lug plates through the end parts of the second reinforcing steel bars;
the third reinforcing steel bar layer comprises a plurality of third reinforcing steel bars which are located on the same horizontal plane and distributed at intervals, and the third reinforcing steel bars are fixed on the outer side faces of the section steel columns in the reinforcing steel bar installation space through the sleeves.
Furthermore, the steel bar rack also comprises a plurality of fourth steel bars; the fourth steel bars are positioned on the same horizontal plane and distributed at intervals;
the number of the section steel columns is 4; the backs of the 4 section steel columns are connected into a whole through a column web, and a penetrating space is formed between every two adjacent section steel columns; the fourth reinforcing steel bars are arranged on the upper portions of the ear plates and extend into the penetrating spaces.
Further, the sleeves are welded with the outer side faces of the section steel columns; and the third steel bar is in threaded connection with the sleeve.
Further, the steel plate also comprises a stiffening plate; the stiffening plate is welded at the back of the section steel column.
The profiled steel beam comprises a flange plate and a web plate, wherein the flange plate is horizontally arranged and is connected with the web plate into a whole; and the lug plate and the flange plate form the steel bar installation space.
Furthermore, the lug plates are welded with the outer side faces of the section steel columns.
By adopting the scheme, the invention has the beneficial effects that:
on the basis of not influencing the structural performance, the beam bottom steel bars are arranged into three rows of steel bars, the arrangement of the steel bars is adjusted, and the ear plates, the sleeves and the bent anchor steel bars are added, so that the problems that the through design of the positions of the beam bottom steel bars and the steel structure web plates of the stiffened concrete and the crossed design of the steel bars and the flange plates cannot be completed are solved.
A beam bottom reinforcing steel bar construction method for a reinforced concrete beam column node comprises the following steps:
1) welding the stiffening plate on the back of the section steel column;
2) respectively welding a plurality of sleeves at intervals on the outer side surfaces of the section steel columns in the same horizontal direction;
3) horizontally welding the lug plate on the outer side surface of the section steel column below the sleeve;
4) welding the section steel beam on the outer side surface of the section steel column above the sleeve;
5) welding the end parts of the first steel bars on the outer side surface of the section steel column between the lug plate and the sleeve at intervals from the middle to two sides in sequence, wherein the first steel bars are positioned on the same horizontal plane; welding the end parts of the second steel bars on the outer side surfaces of the section steel columns below the lug plates at intervals from the middle to two sides in sequence, wherein the second steel bars are positioned on the same horizontal plane;
6) connecting the end parts of the third steel bars with the sleeves respectively through threads;
7) horizontally placing the bent anchor steel bar on the lug plate, wherein one end of the bent anchor steel bar penetrates through the through hole on the lug plate;
8) and (5) checking and accepting after the installation is finished, and organizing the next procedure for construction.
By adopting the scheme, the invention has the beneficial effects that:
1) the quantity of the steel bars is unchanged, and the stress meets the requirement; 2) the arrangement is optimized, the welding environment of operators is better, and the welding quality is guaranteed; 3) the reasonable of reinforcing bar configuration can effectively pour into the concrete, and the vibrating rod vibrates in place, avoids phenomenons such as hole, exposure muscle to produce.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of an overall structure of a beam bottom reinforcing steel bar connection structure of a node of a stiffened concrete beam column provided by the invention;
FIG. 2 is a front view of a beam bottom reinforcing steel bar connection structure of a node of a stiffened concrete beam column provided by the present invention;
fig. 3 is a side view of a beam bottom reinforcing steel bar connection structure of a node of a stiffened concrete beam column provided by the invention.
In the figure: 1-section steel column, 2-section steel beam, 3-lug plate, 4-first reinforcing steel layer, 5-second reinforcing steel layer, 6-third reinforcing steel layer, 7-bending anchor reinforcing steel bar, 8-sleeve, 9-fourth reinforcing steel bar, 10-column web plate, 11-stiffening plate, 21-flange plate, 22-beam web plate, 31-through hole, 41-first reinforcing steel bar, 51-second reinforcing steel bar and 61-third reinforcing steel bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the embodiment of the present invention discloses a beam-bottom reinforcement connection structure for a node of a stiffened concrete beam column, which includes a section steel column 1, a section steel beam 2, an ear plate 3, a first reinforcement layer 4, a second reinforcement layer 5, a third reinforcement layer 6, and a bent anchor reinforcement 7;
the section steel column 1 is plate-shaped;
the section steel beam 2 is fixed on the outer side surface of the section steel column 1;
the ear plates 3 are horizontally fixed on the outer side surfaces of the section steel columns 1 and are positioned below the section steel beams 2; a steel bar installation space is formed between the ear plate 3 and the section steel beam 2; the end part of the ear plate 3 is provided with a through hole 31;
the third steel bar layer 6, the first steel bar layer 4 and the second steel bar layer 5 are sequentially fixed on the outer side surfaces of the section steel columns 1 from top to bottom, the third steel bar layer 6 and the first steel bar layer 4 are positioned in the steel bar installation space, and the second steel bar layer 5 is positioned at the lower parts of the lug plates 3;
the bent anchor bar 7 is horizontally disposed on the upper portion of the lug plate 3, and one end thereof penetrates the through hole 31.
On the basis of not influencing the structural performance, the beam bottom steel bars are arranged into three rows of steel bars, the arrangement of the steel bars is adjusted, and the ear plates 3 and the bent anchor steel bars 7 are added, so that the problems that the through design of the positions of the beam bottom steel bars and the steel structure web plates of the stiffened concrete and the crossed design of the steel bars and the flange plates cannot be completed are solved.
In particular, it also comprises a plurality of sleeves 8; the first reinforcing steel bar layer 4 comprises a plurality of first reinforcing steel bars 41 which are positioned on the same horizontal plane and distributed at intervals, and the plurality of first reinforcing steel bars 41 are welded on the outer side surfaces of the section steel columns 1 positioned in the reinforcing steel bar installation space through the end parts of the first reinforcing steel bars 41; the second reinforcing steel bar layer 5 comprises a plurality of second reinforcing steel bars 51 which are positioned on the same horizontal plane and distributed at intervals, and the plurality of second reinforcing steel bars 51 are welded on the outer side surfaces of the section steel columns 1 positioned at the lower parts of the ear plates 3 through the end parts of the second reinforcing steel bars 51; the third reinforcing steel bar layer 6 comprises a plurality of third reinforcing steel bars 61 which are positioned on the same horizontal plane and distributed at intervals, and the plurality of third reinforcing steel bars 61 are fixed on the outer side surface of the section steel column 1 in the reinforcing steel bar installation space through sleeves 8.
Specifically, the steel bar rack further comprises a plurality of fourth steel bars 9; the fourth steel bars 9 are positioned on the same horizontal plane and distributed at intervals; the number of the section steel columns 1 is 4; the backs of the 4 section steel columns 1 are connected into a whole through a column web 10, and a penetrating space is formed between the adjacent section steel columns 1; a plurality of fourth reinforcing bars 9 are all arranged on the upper part of the ear plate 3 and extend into the penetrating space.
Specifically, a plurality of sleeves 8 are welded on the outer side surface of the section steel column 1; the third reinforcing bar 61 is screwed to the sleeve 8.
Specifically, the steel plate also comprises a stiffening plate 11; the stiffening plate 11 is welded at the back of the section steel column 1.
Specifically, the section steel beam 2 comprises flange plates 21 and web plates 22, the flange plates 21 are horizontally arranged and are connected with the web plates 22 into a whole, and the flange plates 21 and the web plates 22 are welded with the outer side faces of the section steel columns 1; a reinforcing bar installation space is formed between the ear plate 3 and the flange plate 21.
Specifically, the lug plates 3 are welded with the outer side faces of the section steel columns 1.
The embodiment of the invention also discloses a construction method of the beam bottom reinforcing steel bars of the reinforced concrete beam column joints, which comprises the following steps:
1) welding the stiffening plate 11 on the back of the section steel column 1;
2) respectively welding a plurality of sleeves 8 on the outer side surfaces of the section steel columns 1 at intervals in the same horizontal direction;
3) horizontally welding the lug plate 3 on the outer side surface of the section steel column 1 below the sleeve 8;
4) welding the section steel beam 2 on the outer side surface of the section steel column 1 above the sleeve 8;
5) the end parts of the first steel bars 41 are welded on the outer side surface of the section steel column 1 between the lug plate 3 and the sleeve 8 at intervals from the middle to two sides in sequence, and the first steel bars 41 are positioned on the same horizontal plane; the end parts of the second steel bars 51 are welded on the outer side surface of the section steel column 1 below the lug plate 3 at intervals from the middle to two sides, and the second steel bars 51 are positioned on the same horizontal plane;
6) the ends of the third steel bars 61 are respectively connected with the sleeves 8 by screw threads;
7) horizontally placing the bent anchor steel bar 7 on the ear plate 3, wherein one end of the bent anchor steel bar 7 penetrates through the through hole 31 on the ear plate 3;
8) and (5) checking and accepting after the installation is finished, and organizing the next procedure for construction.
The construction method comprises the following steps: 1) the quantity of the steel bars is unchanged, and the stress meets the requirement; 2) the arrangement is optimized, the welding environment of operators is better, and the welding quality is guaranteed; 3) the reasonable of reinforcing bar configuration can effectively pour into the concrete, and the vibrating rod vibrates in place, avoids phenomenons such as hole, exposure muscle to produce.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The beam bottom steel bar connecting structure of the node of the stiffened concrete beam column is characterized by comprising a section steel column, a section steel beam, an ear plate, a first steel bar layer, a second steel bar layer, a third steel bar layer and bent anchor steel bars;
the section steel column is plate-shaped;
the section steel beam is fixed on the outer side surface of the section steel column;
the lug plates are horizontally fixed on the outer side surfaces of the section steel columns and are positioned below the section steel beams; a steel bar mounting space is formed between the ear plate and the section steel beam; the end part of the ear plate is provided with a through hole;
the third reinforcing steel bar layer, the first reinforcing steel bar layer and the second reinforcing steel bar layer are sequentially fixed on the outer side faces of the section steel columns from top to bottom, the third reinforcing steel bar layer and the first reinforcing steel bar layer are located in the reinforcing steel bar installation space, and the second reinforcing steel bar layer is located below the lug plates;
the bent anchor steel bar is horizontally arranged at the upper part of the ear plate, and one end of the bent anchor steel bar penetrates through the through hole.
2. The beam-bottom reinforcing bar connection structure of a stiff concrete beam-column joint according to claim 1, further comprising a plurality of sleeves;
the first reinforcing steel bar layer comprises a plurality of first reinforcing steel bars which are positioned on the same horizontal plane and distributed at intervals, and the first reinforcing steel bars are welded on the outer side surfaces of the section steel columns in the reinforcing steel bar installation space through the end parts of the first reinforcing steel bars;
the second reinforcing steel bar layer comprises a plurality of second reinforcing steel bars which are positioned on the same horizontal plane and distributed at intervals, and the second reinforcing steel bars are welded on the outer side faces of the section steel columns positioned at the lower parts of the lug plates through the end parts of the second reinforcing steel bars;
the third reinforcing steel bar layer comprises a plurality of third reinforcing steel bars which are located on the same horizontal plane and distributed at intervals, and the third reinforcing steel bars are fixed on the outer side faces of the section steel columns in the reinforcing steel bar installation space through the sleeves.
3. The beam-bottom reinforcing bar connection structure of a stiff concrete beam-column joint according to claim 2, further comprising a plurality of fourth reinforcing bars; the fourth steel bars are positioned on the same horizontal plane and distributed at intervals;
the number of the section steel columns is 4; the backs of the 4 section steel columns are connected into a whole through a column web, and a penetrating space is formed between every two adjacent section steel columns; the fourth reinforcing steel bars are arranged on the upper portions of the ear plates and extend into the penetrating spaces.
4. The beam-bottom reinforcing steel connecting structure for a stiff concrete beam-column joint according to claim 2, wherein a plurality of the sleeves are welded to the outer side surfaces of the section steel columns; and the third steel bar is in threaded connection with the sleeve.
5. The beam-bottom reinforcing bar connection structure of a stiff concrete beam-column joint according to claim 3, further comprising a stiffening plate; the stiffening plate is welded at the back of the section steel column.
6. The reinforced concrete beam-column node beam-bottom reinforcement connection structure as claimed in claim 1, wherein the section steel beam comprises flange plates and a web plate, the flange plates are horizontally arranged and integrally connected with the web plate, the flange plates and the web plate are welded to the outer side faces of the section steel column; and the lug plate and the flange plate form the steel bar installation space.
7. The reinforced concrete beam-column node beam-bottom reinforcement connection structure of claim 1, wherein the ear plates are welded to the outer side surfaces of the section columns.
8. The construction method of the beam bottom reinforcing steel bars of the nodes of the stiffened concrete beam column is characterized by comprising the following steps of:
1) welding the stiffening plate on the back of the section steel column;
2) respectively welding a plurality of sleeves at intervals on the outer side surfaces of the section steel columns in the same horizontal direction;
3) horizontally welding the lug plate on the outer side surface of the section steel column below the sleeve;
4) welding the section steel beam on the outer side surface of the section steel column above the sleeve;
5) welding the end parts of the first steel bars on the outer side surface of the section steel column between the lug plate and the sleeve at intervals from the middle to two sides in sequence, wherein the first steel bars are positioned on the same horizontal plane; welding the end parts of the second steel bars on the outer side surfaces of the section steel columns below the lug plates at intervals from the middle to two sides in sequence, wherein the second steel bars are positioned on the same horizontal plane;
6) connecting the end parts of the third steel bars with the sleeves respectively through threads;
7) horizontally placing the bent anchor steel bar on the lug plate, wherein one end of the bent anchor steel bar penetrates through the through hole on the lug plate;
8) and (5) checking and accepting after the installation is finished, and organizing the next procedure for construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011445600.0A CN112482574A (en) | 2020-12-08 | 2020-12-08 | Beam bottom steel bar connecting structure of stiffened concrete beam column node and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011445600.0A CN112482574A (en) | 2020-12-08 | 2020-12-08 | Beam bottom steel bar connecting structure of stiffened concrete beam column node and construction method |
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| CN112482574A true CN112482574A (en) | 2021-03-12 |
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| CN202011445600.0A Pending CN112482574A (en) | 2020-12-08 | 2020-12-08 | Beam bottom steel bar connecting structure of stiffened concrete beam column node and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215173A (en) * | 2021-10-29 | 2022-03-22 | 北京建工四建工程建设有限公司 | Box type steel column and multi-layer beam rib connecting structure and construction method |
-
2020
- 2020-12-08 CN CN202011445600.0A patent/CN112482574A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215173A (en) * | 2021-10-29 | 2022-03-22 | 北京建工四建工程建设有限公司 | Box type steel column and multi-layer beam rib connecting structure and construction method |
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