CN112227178A - Fold shape dentate connecting piece combination beam - Google Patents
Fold shape dentate connecting piece combination beam Download PDFInfo
- Publication number
- CN112227178A CN112227178A CN202011008056.3A CN202011008056A CN112227178A CN 112227178 A CN112227178 A CN 112227178A CN 202011008056 A CN202011008056 A CN 202011008056A CN 112227178 A CN112227178 A CN 112227178A
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- steel
- shear connector
- concrete
- shear
- zigzag
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a zigzag toothed connecting piece combined beam which comprises a steel beam, concrete, shear steel bars and distribution steel bars. The steel beam is formed by welding a web plate and a flange, wherein the upper part of the web plate is provided with a zigzag toothed shear connector. Compared with the traditional combined beam and the reinforced concrete beam, the invention fully utilizes the respective mechanical advantages of steel and concrete, ensures the reliable and effective transmission of the shearing force between the steel and the concrete, and most importantly, the construction process is greatly simplified, the construction progress can be greatly accelerated, the material and labor cost can be saved, and the economic performance is excellent.
Description
Technical Field
The invention belongs to the field of bridge engineering in civil engineering, and relates to a combined beam.
Background
At present, the composite beam is widely applied to a bridge structure, the advantages of two materials are fully utilized, the problems of concrete cracking and steel beam instability are well solved, the composite beam has high rigidity, and the structure weight can be reduced. Compared with a reinforced concrete beam, the construction period of the composite beam is shortened by 1/2-1/3, the construction disturbance degree is reduced, and the composite beam has incomparable advantages.
At present, the commonly used composite structure bridge mainly connects concrete and steel into a whole through studs, perforated plates or section steel and the like, so that the two materials play a role together, however, the connecting pieces adopted at present have respective obvious defects, for example, the studs need to be in sufficient quantity to meet the requirement of bearing capacity, so that the construction trouble degree is increased; the anti-drawing performance of the perforated plate connecting piece is general, and the round hole on the side surface is difficult to penetrate through the steel bar in construction. And the traditional composite beam needs the upper flange of the steel beam, so that the section neutral axis is very close to the upper flange of the steel beam, the stress at the position is small, the material performance cannot be fully utilized, and steel is wasted.
In response to these drawbacks, european scholars have proposed the concept of toothed connecting members, the shape of which is also infinite, but the common problem of these composite beams is the insufficient effectiveness and reliability of the transfer of the drawing force between steel and concrete.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the zigzag toothed combination beam, so that the reliability, the economy and the construction convenience of a combination structure are improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a roll over shape cusp connecting piece combination beam, is a steel-concrete combination beam which characterized in that: the concrete slab comprises a concrete slab (1) and a steel beam, wherein the steel beam is formed by welding a web plate (2) and a flange (3), the upper part of the web plate (2) is provided with a zigzag toothed shear connector (4), and the concrete slab (1) and the steel beam are connected through the zigzag toothed shear connector (4).
The zigzag toothed shear connector (4) is positioned at the upper part of the steel beam web plate (2), and the zigzag toothed shear connector (4) is the only shear force transmission device of the composite beam.
The teeth transmitting the shear force are staggered outwards of the plane to be bent for an angle so as to resist the drawing force between the steel and the concrete.
The shape, size and folding angle of the zigzag toothed shear connector (4) can be changed, and the planar shape of the shear connector can be stretched along the length direction of the steel beam.
A steel bar system is arranged in a space where the concrete slab (1), the steel beam and the zigzag toothed shear connector (4) are intersected, shear steel bars (5) and longitudinal steel bars (6) are bound in a staggered mode to form the steel bar system, the longitudinal steel bars (6) are arranged on two sides of the zigzag toothed shear connector (4), and the shear steel bars (5) are inserted into zigzag toothed grooves of the zigzag toothed shear connector (4) in a penetrating mode; the steel bar system is poured in the concrete slab (1).
The invention provides a combined beam which has better reliability and economic performance and is more convenient to construct under the condition of ensuring that the bearing capacity of the combined beam meets the requirement. Because the flange on the common steel beam is pressed in the composite beam, the steel can be replaced by concrete; the zigzag toothed shear connector also utilizes chemical adhesive force and mechanical engaging force between steel and concrete to the maximum extent to ensure reliable and effective transmission of the shearing force of the two materials.
The components of the combined beam are fully disclosed in connection mode and spatial position; those skilled in the art can reproduce the product of the invention without inventive work from the description of the invention.
The invention has the following beneficial effects:
on the premise of ensuring the strength, rigidity, stability and the like of the composite beam, the invention ensures reliable and effective transfer of shear force between steel and concrete, simplifies the construction process and has excellent economy.
Drawings
Fig. 1 is a three-dimensional effect diagram of the present invention.
Figure 2 is a standard cross-sectional view of the present invention.
Fig. 3 is a side view of the present invention.
And (3) digital labeling:
1 concrete slab, 2 steel beam web plate,
3 steel beam lower flange, 4 zigzag toothed shear connector,
5 shear-resistant steel bars, 6 longitudinal steel bars,
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
As shown in fig. 1, 2 and 3, the present invention is a schematic view, a standard sectional view and a side view:
a combined beam comprises a concrete slab 1, a steel beam 2, a steel beam 3, a zigzag toothed shear connector 4, shear reinforcing steel bars 5, longitudinal reinforcing steel bars 6 and the like. The steel beam is formed by welding two steel plates, wherein the upper part of the web plate 2 is provided with a zigzag toothed shear connector. After the steel bars are bound, the bound steel bars comprise shear steel bars 5 and longitudinal steel bars 6, the shear steel bars and the longitudinal steel bars are bound in a staggered mode to form a steel bar system, and the steel bar system is poured with a concrete top plate together to form the steel bar system.
FIG. 1 is a three-dimensional effect diagram of the composite beam of the present invention.
The embodiments described above are described to facilitate understanding and application of the products of the present invention to those of ordinary skill in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments described herein, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (5)
1. The utility model provides a roll over shape cusp connecting piece combination beam, is a steel-concrete combination beam which characterized in that: the concrete slab comprises a concrete slab (1) and a steel beam, wherein the steel beam is formed by welding a web plate (2) and a flange (3), the upper part of the web plate (2) is provided with a zigzag toothed shear connector (4), and the concrete slab (1) and the steel beam are connected through the zigzag toothed shear connector (4).
2. The composite beam defined in claim 1, wherein: the zigzag toothed shear connector (4) is positioned at the upper part of the steel beam web plate (2), and the zigzag toothed shear connector (4) is the only shear force transmission device of the composite beam.
3. The composite beam defined in claim 2, wherein: the teeth transmitting the shear force are staggered outwards of the plane to be bent for an angle so as to resist the drawing force between the steel and the concrete.
4. The composite beam defined in any one of claims 1, 2, 3 wherein: the shape, size and folding angle of the zigzag toothed shear connector (4) can be changed, and the planar shape of the shear connector can be stretched along the length direction of the steel beam.
5. The composite beam defined in claim 1, wherein: a steel bar system is arranged in a space where the concrete slab (1), the steel beam and the zigzag toothed shear connector (4) are intersected, shear steel bars (5) and longitudinal steel bars (6) are bound in a staggered mode to form the steel bar system, the longitudinal steel bars (6) are arranged on two sides of the zigzag toothed shear connector (4), and the shear steel bars (5) are inserted into zigzag toothed grooves of the zigzag toothed shear connector (4) in a penetrating mode; the steel bar system is poured in the concrete slab (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008056.3A CN112227178A (en) | 2020-09-23 | 2020-09-23 | Fold shape dentate connecting piece combination beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008056.3A CN112227178A (en) | 2020-09-23 | 2020-09-23 | Fold shape dentate connecting piece combination beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112227178A true CN112227178A (en) | 2021-01-15 |
Family
ID=74108621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011008056.3A Pending CN112227178A (en) | 2020-09-23 | 2020-09-23 | Fold shape dentate connecting piece combination beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112227178A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10102660A (en) * | 1996-10-02 | 1998-04-21 | Nippon Kaiser Kk | Precast concrete board and manufacture thereof |
| KR20040007956A (en) * | 2002-07-15 | 2004-01-28 | 한국건설기술연구원 | Hybrid Type Composite Deck having Deck Plate and I Beam, and Constructing Method thereof |
| CN201581502U (en) * | 2009-12-24 | 2010-09-15 | 中国京冶工程技术有限公司 | Shear resisting part |
| CN203639801U (en) * | 2013-12-29 | 2014-06-11 | 西安公路研究院 | Shearing connector for corrugated steel web plate combined beam |
| CN104100037A (en) * | 2014-06-26 | 2014-10-15 | 同济大学 | Combined flat beam |
| CN208594630U (en) * | 2018-03-05 | 2019-03-12 | 苏州科技大学 | A kind of wood-concrete combination beam shear connector push out test test specimen |
-
2020
- 2020-09-23 CN CN202011008056.3A patent/CN112227178A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10102660A (en) * | 1996-10-02 | 1998-04-21 | Nippon Kaiser Kk | Precast concrete board and manufacture thereof |
| KR20040007956A (en) * | 2002-07-15 | 2004-01-28 | 한국건설기술연구원 | Hybrid Type Composite Deck having Deck Plate and I Beam, and Constructing Method thereof |
| CN201581502U (en) * | 2009-12-24 | 2010-09-15 | 中国京冶工程技术有限公司 | Shear resisting part |
| CN203639801U (en) * | 2013-12-29 | 2014-06-11 | 西安公路研究院 | Shearing connector for corrugated steel web plate combined beam |
| CN104100037A (en) * | 2014-06-26 | 2014-10-15 | 同济大学 | Combined flat beam |
| CN208594630U (en) * | 2018-03-05 | 2019-03-12 | 苏州科技大学 | A kind of wood-concrete combination beam shear connector push out test test specimen |
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Application publication date: 20210115 |