CN210458913U - Combination beam with shear partition connecting piece in channel steel flange - Google Patents
Combination beam with shear partition connecting piece in channel steel flange Download PDFInfo
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- CN210458913U CN210458913U CN201920887101.3U CN201920887101U CN210458913U CN 210458913 U CN210458913 U CN 210458913U CN 201920887101 U CN201920887101 U CN 201920887101U CN 210458913 U CN210458913 U CN 210458913U
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- reinforced concrete
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 150
- 239000010959 steel Substances 0.000 title claims abstract description 150
- 238000005192 partition Methods 0.000 title description 14
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 35
- 238000003466 welding Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- -1 of a wing Substances 0.000 claims abstract description 3
- 239000002131 composite material Substances 0.000 claims description 16
- 238000010276 construction Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 description 23
- 230000002787 reinforcement Effects 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000011374 ultra-high-performance concrete Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The utility model relates to a combination beam who contains shear force baffle connecting piece in channel-section steel edge of a wing, include the steel web, be fixed in respectively the channel-section steel edge of a wing and the steel sheet edge of a wing of both ends about the steel web and connect in reinforced concrete slab on the channel-section steel edge of a wing, reinforced concrete slab and channel-section steel edge of a wing are connected through the shear force baffle of anti longitudinal shear force and the anti resistance to plucking mechanism of anti vertical pulling force. Compared with the prior art, the utility model discloses the utensil vertically bears the weight of the dynamic height, welding work volume is few, the process is simple, decking wholeness is high, the efficiency of construction is high, engineering cost low grade advantage.
Description
Technical Field
The utility model discloses the bridge engineering field relates to the composite beam bridge, especially relates to a contain combination beam of shear force baffle connecting piece in groove steel edge of a wing.
Background
The steel-concrete combined beam bridge is a cooperative stress structure which combines a steel beam member and a concrete bridge deck into a combined cross section through a connecting piece to work together. The structural form is increasingly widely applied due to the fact that the advantages of two materials, namely steel and concrete, can be fully exerted.
Shear connectors are key stressed components in steel-concrete structures that ensure the common stress of two materials. At present, the common shear connectors at home and abroad mainly comprise a welding nail connector and a perforated plate connector. The construction method of the welding nail connecting piece is mature at present and has special construction machinery, but the construction is complicated when the number of the shear nails is large and the shear nails are dense; the perforated plate connecting piece is simple and convenient to construct, the welding seams are few, reinforcing steel bars in the concrete bridge deck slab are blocked (or the reinforcing steel bars need to penetrate through holes), the concrete bridge deck slab is transversely cut into a plurality of blocks, and the integrity of the bridge deck slab is damaged.
Chinese patent CN 108755379A discloses a combined beam bridge with perforated plate template and its construction method, including: the combined beam, the perforated plate template and the concrete bridge deck slab, wherein the perforated plate template comprises a folded steel plate and a perforated plate connecting piece, the folded steel plate is welded with the combined beam, the perforated plate connecting piece is welded on the folded steel plate, and a plurality of openings are formed in the perforated connecting piece; the concrete bridge deck comprises a concrete slab and a plurality of steel bars, wherein the steel bars are cast in the concrete slab, the steel bars penetrate through the open holes, and the steel bars are welded with the open hole plate connecting piece; the utility model mainly aims at improving the longitudinal bearing capacity of the bridge; however, in the technical scheme, the perforated plate connecting piece is complex in manufacturing process, low in construction efficiency and high in engineering cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a combination beam containing a shear partition connecting piece in a channel steel flange in order to overcome the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a combination beam that contains shear force baffle connecting piece in channel-section steel edge of a wing, includes the steel web, be fixed in respectively the channel-section steel edge of a wing and the steel sheet edge of a wing of both ends about the steel web and connect in reinforced concrete slab on the channel-section steel edge of a wing, reinforced concrete slab and channel-section steel edge of a wing are through the shear force baffle of anti longitudinal shear force and the resistance to plucking mechanism connection of anti vertical pulling force.
The utility model designs a longitudinal shearing force resisting mechanism and a vertical pulling force resisting mechanism respectively, rather than adopting a mechanism like a welding nail or a perforated plate with steel bars in the prior art, and simultaneously plays the roles of longitudinal shearing force resistance and vertical pulling force resistance; adopt the utility model discloses a method, the distance according to longitudinal shear force and vertical pulling force requires the number of designing required shear force baffle and resistance to plucking mechanism respectively to satisfy the bearing capacity of composite beam.
The shear clapboard is arranged in the groove of the channel steel flange in a way that the cross section of the shear clapboard is parallel to the channel steel flange,
the shape of the shear diaphragm is matched with the shape of the cross section of the channel steel flange.
And a plurality of shear separators are arranged in the channel steel flanges along the axial direction of the channel steel flanges.
The shear partition plate is welded inside the flange of the channel steel.
The anti-pulling mechanism is an in-groove stirrup vertically arranged in the channel steel flange, the lower end of the in-groove stirrup is fixed on the bottom surface of the channel steel flange in a welding manner, and the upper end of the in-groove stirrup is arranged in the reinforced concrete slab.
The lower end of the hoop reinforcement in the groove is fixed on the bottom surface of the flange of the channel steel through double-sided welding.
The anti-pulling mechanism is fixed on a plurality of welding nails in the flange of the channel steel, and the welding nails are fixedly connected with the bottom of the flange of the channel steel through welding.
The upper portion and the lower part of reinforced concrete slab are equipped with two-layer reinforcing bar respectively, and every layer of reinforcing bar includes along a plurality of parallel arrangement's of reinforced concrete slab axial direction longitudinal reinforcement and edge a plurality of parallel arrangement's of reinforced concrete slab transverse direction transverse reinforcement.
And the reinforced concrete plate is embedded into the groove of the flange of the channel steel.
The reinforced concrete slab and the connecting part of the channel steel flange can be formed by pouring ultrahigh-performance concrete.
Compared with the prior art, the utility model has the advantages of it is following:
(1) compared with the scheme of adopting a large number of welding nails in the prior art, the composite beam does not need to be welded with a large number of welding nails during construction, so that the welding workload is reduced; this is because the utility model discloses the main effect of well welding nail is anti vertical pulling force, and the welding nail among the prior art is still to resist vertical shearing force except that resisting vertical pulling force, consequently need design a large amount of welding nails and satisfy the demand, and the utility model discloses in adopt the shear force baffle to satisfy vertical bearing, compare in the welding nail, adopt the shear force baffle can increase the lifting surface between concrete slab and the channel-section steel edge of a wing, therefore have better longitudinal stability;
(2) compared with the scheme of the combined beam adopting the perforated plate connecting piece in the prior art, the utility model does not need to penetrate the steel bar in the perforated plate, thereby omitting the complex process of penetrating the steel bar in the round hole, simplifying the construction steps and not damaging the integrity of the bridge deck;
(3) the utility model adopts the channel steel flange and welds the shear partition connecting piece in the channel steel flange, so that the channel steel not only serves as the steel beam upper flange, but also can play the role of the connecting piece, thereby simplifying the construction process, improving the efficiency, saving the cost and reducing the construction cost;
(4) the utility model discloses in, can adopt the ultra high performance concrete with reinforced concrete slab and channel-section steel edge of a wing connection position, and other parts adopt conventional concrete, and the connection stability on reinforced concrete slab and channel-section steel edge of a wing has been guaranteed simultaneously to save material cost, improves its bearing capacity.
Drawings
FIG. 1 is a schematic side view of the present invention;
FIG. 2 is a schematic cross-sectional structure of example 1;
FIG. 3 is a schematic cross-sectional structure of example 2;
in the figure, 1 is a reinforced concrete slab, 101 is an in-groove stirrup, 102 is a longitudinal reinforcement, 103 is a transverse reinforcement, 2 is a channel steel flange, 201 is a shear spacer, 202 is a welding nail, 3 is a steel web, and 4 is a steel plate flange.
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.
Example 1
A combination beam with shear partition connecting pieces in channel steel flanges is shown in figure 1 and comprises a steel web 3, a channel steel flange 2 and a steel plate flange 4 which are respectively fixed at the upper end and the lower end of the steel web 3, and a reinforced concrete slab 1 connected to the channel steel flange 2, wherein the reinforced concrete slab 1 and the channel steel flange 2 are connected through a shear partition 201 resisting longitudinal shear and an anti-pulling mechanism resisting vertical pulling force. As shown in fig. 2, the shape of the shear diaphragm 201 is matched with that of the channel steel flange 2, and the shear diaphragm 201 is perpendicular to the bottom surface of the channel steel flange 2, so that prefabrication can be completed in a steel structure processing plant, and the shear diaphragm 201 is welded inside the channel steel flange 2 as a component for providing longitudinal shear force between a steel structure and a concrete slab; along the axial direction of channel-section steel edge of a wing 2, be provided with a plurality of shear force baffle 201 in the channel-section steel edge of a wing 2, the interval of setting is confirmed according to the structure atress demand.
In this embodiment, the anti-pulling mechanism is an in-groove stirrup 101 vertically arranged in the channel steel flange 2, the lower end of the in-groove stirrup 101 is fixed to the bottom surface of the channel steel flange 2 through double-sided welding, and the upper end is arranged in the reinforced concrete slab 1, as shown in fig. 2. A plurality of in-groove stirrups 101 which are distributed at equal intervals are arranged between the channel steel flange 2 and the reinforced concrete slab 1 along the axial direction of the channel steel flange 2; the anti-pulling mechanism can be constructed in a factory, namely, a steel beam structure welded with the shear partition plate 201 and the in-groove stirrups 101 is manufactured in a steel structure factory in advance. And (5) conveying the prefabricated steel beam to a construction site for field installation.
Two layers of steel bars are respectively arranged at the upper part and the lower part of the reinforced concrete slab 1, as shown in fig. 2, each layer of steel bars comprises a plurality of longitudinal steel bars 102 which are arranged in parallel along the axial direction of the reinforced concrete slab 1 and a plurality of transverse steel bars 103 which are arranged in parallel along the transverse direction of the reinforced concrete slab 1.
The construction method of the composite beam in the embodiment comprises the following steps: prefabricating a welded steel structure in a steel structure processing plant, wherein the welded steel structure comprises a welded and assembled steel plate flange 4, a steel web 3, a channel steel flange 2, and an in-groove stirrup 101 and a shear partition plate 201 in the channel steel flange 2; and (3) conveying the prefabricated steel structure to a construction site, and binding the concrete longitudinal steel bars 102 and the transverse steel bars 103 after the steel beams are in place. And after all the reinforcing steel bars are bound, pouring bridge deck concrete to form a reinforced concrete slab 1, and then constructing, paving, railings and the like.
When the bridge deck concrete is poured, the reinforced concrete slab can adopt conventional concrete or ultrahigh-performance concrete, and the ultrahigh-performance concrete can also be adopted only at the connecting part of the concrete slab and the flange of the channel steel. In order to further facilitate construction and improve construction efficiency, bridge deck concrete can be poured in a factory to form a composite beam, and the composite beam is transported to a construction site and then installed.
Compare the scheme of the combination beam who adopts the trompil board connecting piece among the prior art, the utility model discloses need not wear the reinforcing bar in the trompil board, saved the loaded down with trivial details process of wearing the reinforcing bar in the round hole, simplified the construction procedure, and do not destroy the wholeness of decking.
Example 2
A combination beam with shear partition connecting pieces in channel steel flanges is shown in figure 1 and comprises a steel web 3, a channel steel flange 2 and a steel plate flange 4 which are respectively fixed at the upper end and the lower end of the steel web 3, and a reinforced concrete slab 1 connected to the channel steel flange 2, wherein the reinforced concrete slab 1 and the channel steel flange 2 are connected through a shear partition 201 resisting longitudinal shear and an anti-pulling mechanism resisting vertical pulling force. As shown in fig. 3, the shape of the shear diaphragm 201 matches the shape of the channel steel flange 2, and the shear diaphragm 201 is perpendicular to the bottom surface of the channel steel flange 2, so that the steel structure can be prefabricated in a steel structure processing plant, and the shear diaphragm 201 is welded inside the channel steel flange 2 as a component for providing a longitudinal shear force between the steel structure and the concrete slab; along the axial direction of the channel steel flange 2, a plurality of shear partition plates 201 are arranged in the channel steel flange 2.
In this embodiment, as shown in fig. 3, the anti-pulling mechanism is a plurality of welding nails 202 welded and fixed in the channel steel flange 2; a proper amount of welding nails 201 are arranged in the channel steel flange 2 to provide anti-pulling force, and the welding nails are matched with the shear partition plate 201 to meet the bearing requirement of the composite beam; the anti-pulling mechanism can be constructed in a factory, that is, a steel beam structure welded with the shear diaphragm 201 and the welding nails 202 is prefabricated in a steel structure factory. And (5) conveying the prefabricated steel beam to a construction site for field installation.
Two layers of steel bars are respectively arranged at the upper part and the lower part of the reinforced concrete slab 1, as shown in fig. 3, each layer of steel bars comprises a plurality of longitudinal steel bars 102 which are arranged in parallel along the axial direction of the reinforced concrete slab 1 and a plurality of transverse steel bars 103 which are arranged in parallel along the transverse direction of the reinforced concrete slab 1.
The construction method of the composite beam in the embodiment comprises the following steps: prefabricating a welded steel structure in a steel structure processing plant, wherein the welded steel structure comprises a welded and assembled steel plate flange 4, a steel web 3, a channel steel flange 2, a welding nail 202 in the channel steel flange 2 and a shear partition plate 201; and (3) conveying the prefabricated steel structure to a construction site, and binding the concrete longitudinal steel bars 102 and the transverse steel bars 103 after the steel beams are in place. And after all the reinforcing steel bars are bound, pouring bridge deck concrete to form a reinforced concrete slab 1, and then constructing, paving, railings and the like.
Compared with the scheme of adopting a large number of welding nails in the prior art, the composite beam does not need to be welded with a large number of welding nails during construction, so that the welding workload is reduced; this is because the utility model discloses well welding nail's primary action is anti vertical pulling force, and the welding nail among the prior art is except that will resisting vertical pulling force still will resist fore-and-aft shearing force, consequently need design a large amount of welding nails and satisfy the demand, and the utility model discloses in adopt the shear force baffle to satisfy vertically bearing, compare in the welding nail, adopt the shear force baffle can increase the lifting surface area between concrete slab and the channel-section steel edge of a wing, therefore have better longitudinal stability.
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. The utility model provides a combination beam who contains shear force baffle connecting piece in channel steel edge of a wing which characterized in that, include steel web (3), be fixed in respectively channel-section steel edge of a wing (2) and steel sheet edge of a wing (4) at both ends about steel web (3) and connect in reinforced concrete board (1) on channel-section steel edge of a wing (2), reinforced concrete board (1) and channel-section steel edge of a wing (2) are connected through shear force baffle (201) and the resistance to plucking mechanism of anti vertical pulling force of anti longitudinal shear force.
2. The composite beam with shear bulkhead connectors in channel flanges as claimed in claim 1, wherein the shear bulkhead (201) is installed inside the groove of the channel flange (2) in a cross section parallel to the channel flange (2).
3. The composite beam with shear bulkhead connectors in channel steel flanges as claimed in claim 2 wherein the shape of the shear bulkhead (201) matches the cross sectional shape of the channel steel flanges (2).
4. The composite beam with the shear diaphragm connecting pieces in the channel steel flanges according to any one of claims 1 to 3, characterized in that a plurality of shear diaphragms (201) are arranged in the channel steel flanges (2) along the axial direction of the channel steel flanges (2).
5. The composite beam with the shear diaphragm connectors in the channel steel flanges as claimed in claim 1, wherein the anti-pulling mechanism is an in-channel stirrup (101) vertically arranged in the channel steel flanges (2), the lower end of the in-channel stirrup (101) is fixed to the bottom surfaces of the channel steel flanges (2), and the upper end of the in-channel stirrup is arranged in the reinforced concrete slab (1).
6. The composite beam with shear diaphragm connectors in channel steel flanges according to claim 1, wherein the anti-pulling mechanism is a plurality of welding nails (202) fixed in the channel steel flanges (2).
7. The composite beam with the shear diaphragm connectors in the channel steel flanges as claimed in claim 1, wherein the upper part and the lower part of the reinforced concrete slab (1) are respectively provided with two layers of steel bars, each layer of steel bars comprises a plurality of longitudinal steel bars (102) arranged in parallel along the axial direction of the reinforced concrete slab (1) and a plurality of transverse steel bars (103) arranged in parallel along the transverse direction of the reinforced concrete slab (1).
8. The composite beam with shear diaphragm connection in channel steel flanges as claimed in claim 1, characterized in that the reinforced concrete slab (1) is embedded inside the groove of the channel steel flanges (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920887101.3U CN210458913U (en) | 2019-06-13 | 2019-06-13 | Combination beam with shear partition connecting piece in channel steel flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920887101.3U CN210458913U (en) | 2019-06-13 | 2019-06-13 | Combination beam with shear partition connecting piece in channel steel flange |
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| Publication Number | Publication Date |
|---|---|
| CN210458913U true CN210458913U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920887101.3U Expired - Fee Related CN210458913U (en) | 2019-06-13 | 2019-06-13 | Combination beam with shear partition connecting piece in channel steel flange |
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| CN (1) | CN210458913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130211A (en) * | 2019-06-13 | 2019-08-16 | 同济大学 | The combination beam of the spacer adapter containing shearing in a kind of channel steel edge of a wing |
| CN116837667A (en) * | 2023-05-30 | 2023-10-03 | 安徽省交通规划设计研究总院股份有限公司 | Track bridge structure capable of being quickly constructed and composite connecting tenon reinforcement calculation method |
-
2019
- 2019-06-13 CN CN201920887101.3U patent/CN210458913U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130211A (en) * | 2019-06-13 | 2019-08-16 | 同济大学 | The combination beam of the spacer adapter containing shearing in a kind of channel steel edge of a wing |
| CN116837667A (en) * | 2023-05-30 | 2023-10-03 | 安徽省交通规划设计研究总院股份有限公司 | Track bridge structure capable of being quickly constructed and composite connecting tenon reinforcement calculation method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200505 |