CN216740016U - Cold-formed thin-wall steel keel for assembled concrete beam - Google Patents
Cold-formed thin-wall steel keel for assembled concrete beam Download PDFInfo
- Publication number
- CN216740016U CN216740016U CN202220187964.1U CN202220187964U CN216740016U CN 216740016 U CN216740016 U CN 216740016U CN 202220187964 U CN202220187964 U CN 202220187964U CN 216740016 U CN216740016 U CN 216740016U
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- Prior art keywords
- steel
- concrete beam
- cold
- formed thin
- precast concrete
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- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 92
- 239000010959 steel Substances 0.000 title claims abstract description 92
- 239000004567 concrete Substances 0.000 title claims abstract description 29
- 239000012634 fragment Substances 0.000 claims abstract 2
- 239000011178 precast concrete Substances 0.000 claims description 29
- 230000002787 reinforcement Effects 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000011440 grout Substances 0.000 abstract 1
- 230000003313 weakening effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 239000011150 reinforced concrete Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model belongs to the field of civil engineering, and particularly relates to a cold-formed thin-wall steel keel for an assembled concrete beam. Two C type cold-formed thin-walled steel connect the formation fossil fragments with two rows of shooting nails, and at the erection joint department, through adding the steel sheet and connecting with shooting the nail at web and upper and lower edge of a wing department, the muscle is indulged to the atress through the telescopic mode connection of grout, and stirrup and atress are indulged and are connected through the mode of ligature between the muscle. The assembled cold-formed thin-wall steel keel concrete beam splicing node provided by the utility model is simple to splice, the weakening of the steel plate and the steel rib by the nail-shooting connection is small, the connection performance is reliable, and the assembly effect is good.
Description
Technical Field
The utility model belongs to the technical field of civil engineering and construction, and particularly relates to a cold-formed thin-wall steel keel for an assembled concrete beam.
Background
The steel reinforced concrete has the advantages of large bearing capacity, high rigidity, good earthquake resistance and fire resistance, and good local and overall stability of the structure; the assembly type structure has the advantages of high production efficiency, environmental protection and contribution to sustainable development. At present, the section steel of the fabricated section steel concrete at the joint is reinforced by a steel plate and a bolt through welded connection, and the reinforcing steel bars are bound and connected. The problems of heavy weight of the steel reinforced concrete, small diameter of the steel bar and low strength exist, so that the steel bar arrangement of the prefabricated part is complex and the construction procedures are multiple when the prefabricated part is assembled and connected on site, and the construction quality of the concrete part is not guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a cold-formed thin-wall steel keel for an assembled concrete beam, which has the following specific scheme:
a cold-formed thin-wall steel keel for an assembled concrete beam comprises a precast concrete beam, a cast-in-place part, C-shaped cold-formed thin-wall steel, longitudinal bars, stirrups, grouting sleeves, steel plates and shooting nails;
two rows of mounting holes are formed in a web plate of the C-shaped cold-formed thin-walled steel;
the two C-shaped cold-formed thin-walled steel plates are arranged back to back and are connected into an I-shaped steel keel through a shooting nail;
one end heads of the two steel keels are oppositely arranged, steel plates are arranged at the joints of the C-shaped cold-formed thin-wall steel web plate and the upper and lower flange plates, and the steel plates are fixed on the web plate and the upper and lower flange plates through shooting nails, so that the fixed connection among the steel keels is formed;
the other ends of the two steel keels are respectively arranged in the precast concrete beam column joint and the precast concrete beam;
longitudinal bars are symmetrically arranged in the precast concrete beam column joints and the precast concrete beam and are arranged in parallel with the two steel keels, and the stirrups and the longitudinal bars are connected by binding;
the two symmetrical longitudinal ribs are connected together through a grouting sleeve;
the longitudinal bars, the grouting sleeves and the stirrups form a reinforcement cage, and concrete is cast in situ in a cage cavity formed by the reinforcement cage.
The cold-formed thin-wall steel keel for the fabricated concrete beam has the preferred scheme that the longitudinal rib is a large-diameter stressed longitudinal rib.
The cold-formed thin-wall steel keel for the assembled concrete beam has the preferred scheme that the depth of the longitudinal bar inserted into the precast concrete beam column joint and the precast concrete beam is the same as the length of the precast concrete beam column joint and the length of the precast concrete beam.
The cold-formed thin-wall steel keel for the fabricated concrete beam has the preferred scheme that the steel plates for connecting the upper flange plate and the lower flange plate of the two steel keels and the edges of the upper flange plate and the lower flange plate of the two steel keels are on the same horizontal line.
The cold-formed thin-wall steel keel for the fabricated concrete beam has the preferred scheme that three rows of mounting holes are formed in steel plates on webs of the two steel keels.
The utility model has the beneficial effects that: the steel keel formed by connecting two C-shaped cold-formed thin-wall section steels by the shooting nails is adopted to replace the section steels, and the large-diameter high-strength steel bars are adopted, so that the self weight of the section steel concrete beam is effectively reduced on the basis of ensuring the structural safety, and meanwhile, the steel is saved; the assembling difficulty of the nodes is reduced, construction is facilitated, and the structure economy is better. The steel plate and the shooting nail are used for connecting the cold-formed thin-wall steel keel, and the grouting sleeve is used for connecting the large-diameter steel bar, so that the structural strength is ensured, and the construction difficulty is reduced.
Drawings
FIG. 1 is a schematic perspective view of a cold-formed thin-walled steel keel for fabricated concrete beams;
FIG. 2 is a front view of a cold-formed thin-walled steel runner for a fabricated concrete beam;
FIG. 3 is a top plan view of a cold-formed thin-walled steel runner for a fabricated concrete beam;
fig. 4 is a sectional view of a cold-formed thin-walled steel runner 1-1 for an assembled concrete beam.
In the figure: 1-precast concrete beam column joint, 2-cast-in-place concrete, 3-C type cold-formed thin-wall section steel, 4-longitudinal bar, 5-stirrup, 6-grouting sleeve, 7-steel plate, 8-shooting nail and 9-precast concrete beam.
Detailed Description
As shown in fig. 1-4, a cold-formed thin-walled steel keel for an assembled concrete beam comprises a precast concrete beam 1, a cast-in-place part 2, C-shaped cold-formed thin-walled steel 3, longitudinal bars 4, stirrups 5, grouting sleeves 6, steel plates 7 and shooting nails 8;
two rows of mounting holes are formed in a web plate of the C-shaped cold-formed thin-wall section steel 3;
the two C-shaped cold-formed thin-wall section steels 3 are arranged back to back and are connected into an I-shaped steel keel through a shooting nail 8;
one end heads of the two steel keels are oppositely arranged, a steel plate 7 is arranged at the joint of the web plate of the C-shaped cold-formed thin-wall steel 3 and the upper and lower flange plates, and the steel plate 7 is fixed on the web plate and the upper and lower flange plates through a shooting nail 8, so that the fixed connection between the steel keels is formed;
the other ends of the two steel keels are respectively arranged in the precast concrete beam-column joint 1 and the precast concrete beam 9;
the two symmetrical longitudinal ribs 4 are connected together through a grouting sleeve 6;
the longitudinal bars 4, the grouting sleeves 6 and the stirrups 5 form a reinforcement cage, and concrete 2 is cast in situ in a cage cavity formed by the reinforcement cage.
The longitudinal ribs 4 are large-diameter stressed longitudinal ribs.
The depth of the longitudinal bar 4 inserted into the precast concrete beam column joint 1 and the precast concrete beam 9 is the same as the length of the precast concrete beam column joint 1 and the length of the precast concrete beam 9.
The steel plate 7 connecting the upper and lower flange plates of the two steel keels and the edges of the upper and lower flange plates are on the same horizontal line.
And the steel plates 7 on the web plates of the two steel keels are provided with three rows of mounting holes.
Claims (5)
1. The utility model provides a thin-walled cold-formed steel fossil fragments for assembled concrete beam which characterized in that: the cast-in-place concrete beam comprises a precast concrete beam, a cast-in-place part, C-shaped cold-formed thin-wall section steel, longitudinal bars, stirrups, grouting sleeves, steel plates and shooting nails;
two rows of mounting holes are formed in a web plate of the C-shaped cold-formed thin-walled steel;
the two C-shaped cold-formed thin-walled steel plates are arranged back to back and are connected into an I-shaped steel keel through a shooting nail;
one end heads of the two steel keels are oppositely arranged, steel plates are arranged at the joints of the C-shaped cold-formed thin-wall steel web plate and the upper and lower flange plates, and the steel plates are fixed on the web plate and the upper and lower flange plates through shooting nails, so that the fixed connection among the steel keels is formed;
the other ends of the two steel keels are respectively arranged in the precast concrete beam column joint and the precast concrete beam;
longitudinal bars are symmetrically arranged in the precast concrete beam column joints and the precast concrete beam and are arranged in parallel with the two steel keels, and the stirrups and the longitudinal bars are connected by binding;
the two longitudinal ribs which are symmetrical up and down are connected together through the grouting sleeve;
the longitudinal bars, the grouting sleeves and the stirrups form a reinforcement cage, and concrete is cast in situ in a cage cavity formed by the reinforcement cage.
2. A cold-formed thin-walled steel runner for fabricated concrete beams as claimed in claim 1, wherein: the longitudinal ribs are large-diameter stressed longitudinal ribs.
3. A cold-formed thin-walled steel runner for fabricated concrete beams as claimed in claim 1, wherein: the depth of the longitudinal bar inserted into the precast concrete beam column joint and the precast concrete beam is the same as the length of the precast concrete beam column joint and the length of the precast concrete beam.
4. A cold-formed thin-walled steel runner for fabricated concrete beams as claimed in claim 1, wherein: the steel plate for connecting the upper flange plate and the lower flange plate of the two steel keels and the edges of the upper flange plate and the lower flange plate are on the same horizontal line.
5. A cold-formed thin-walled steel runner for fabricated concrete beams as claimed in claim 1, wherein: the steel plates on the two steel keel webs are provided with three rows of mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220187964.1U CN216740016U (en) | 2022-01-24 | 2022-01-24 | Cold-formed thin-wall steel keel for assembled concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220187964.1U CN216740016U (en) | 2022-01-24 | 2022-01-24 | Cold-formed thin-wall steel keel for assembled concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216740016U true CN216740016U (en) | 2022-06-14 |
Family
ID=81917255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220187964.1U Expired - Fee Related CN216740016U (en) | 2022-01-24 | 2022-01-24 | Cold-formed thin-wall steel keel for assembled concrete beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216740016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434417A (en) * | 2022-08-03 | 2022-12-06 | 中建八局第二建设有限公司 | Fabricated concrete frame structure and construction method thereof |
-
2022
- 2022-01-24 CN CN202220187964.1U patent/CN216740016U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434417A (en) * | 2022-08-03 | 2022-12-06 | 中建八局第二建设有限公司 | Fabricated concrete frame structure and construction method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220614 |