CN211713647U - Full-assembly type steel concrete combined box girder - Google Patents
Full-assembly type steel concrete combined box girder Download PDFInfo
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- CN211713647U CN211713647U CN201922473605.3U CN201922473605U CN211713647U CN 211713647 U CN211713647 U CN 211713647U CN 201922473605 U CN201922473605 U CN 201922473605U CN 211713647 U CN211713647 U CN 211713647U
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- concrete
- cast iron
- steel
- flange
- steel beam
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- 239000004567 concrete Substances 0.000 title claims abstract description 106
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 99
- 239000010959 steel Substances 0.000 title claims abstract description 99
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 45
- 235000000396 iron Nutrition 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims description 13
- 239000011150 reinforced concrete Substances 0.000 claims 5
- 238000009434 installation Methods 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The utility model discloses a full assembled steel concrete combination case roof beam, including two girder steels of horizontal transversal arrangement, girder steel upper portion is equipped with the concrete top flange, concrete top flange bottom surface is equipped with two downward outstanding steel beam mounting seats, the inside a plurality of toper cast irons that are equipped with of concrete top flange, it has certain resistance to plucking to make the connection between girder steel and top flange board, the less one side of toper cast iron diameter is equipped with the screw hole, girder steel upper portion, the lower part is equipped with a plurality of holes, the diameter of hole and the diameter looks adaptation of screw rod, the girder steel lower part is equipped with the concrete bottom flange, concrete bottom flange top surface is equipped with the steel beam mounting seat that makes progress outstanding, the inside a plurality of toper cast irons that are equipped with in concrete bottom flange. The utility model has the advantages that: not only intensity is good, and anti vertical shear capacity is strong, forms solitary installation module moreover, and bridge deck pavement layer or decorative layer can be prefabricated on upper flange board upper portion, improves the site operation efficiency.
Description
Technical Field
The utility model belongs to the technical field of steel concrete composite beam, concretely relates to full assembly type steel concrete composite box roof beam.
Background
At present, steel concrete composite beams are increasingly widely applied in the field of structural engineering.
The bearing capacity of the steel concrete composite beam structure depends on effective transmission of stress at a joint of concrete and a steel beam, the design of the joint is very critical, whether longitudinal horizontal shear force generated between steel and concrete materials can be effectively controlled or not must be considered, the shear connector is a connecting part which combines the steel beam and the concrete wing plate to work together, the shear connector plays a role in transmitting the longitudinal shear force between the steel beam and the concrete wing plate so as to ensure that relative displacement is not generated between two different materials when the structure moves, and the connection effectiveness at the joint directly influences the structural stability and safety of the steel concrete composite beam.
Concrete parts of the traditional steel concrete composite beam all need to be poured in situ, the construction period is long, the effect is poor after forming, and therefore, engineering personnel always search for a prefabricated and assembled solution.
Disclosure of Invention
The utility model provides a full assembled steel concrete combination case roof beam, not only intensity is good, and anti vertical shear capacity is strong and simple to operate, the efficiency of construction is high.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a full-assembly type steel concrete combined box girder comprises two steel girders horizontally and transversely arranged, the two steel girders are arranged in parallel, the upper parts of the steel girders are provided with concrete top flanges, the concrete top flanges are of a plate-shaped structure horizontally arranged, the bottom surfaces of the concrete top flanges are provided with two steel girder installation seats protruding downwards, the top surfaces of the steel girders are contacted with the bottom surfaces of the corresponding steel girder installation seats, the front sides and the rear sides of the concrete top flanges are provided with top flange protruding edges, a plurality of conical cast irons are arranged inside the concrete top flanges, the conical cast irons are of a circular table structure, one side surface with a smaller diameter of the conical cast irons is provided with a threaded hole, a screw rod matched with an internal thread is arranged in the threaded hole, a screw cap is arranged on the screw rod, the position of the conical cast iron corresponds to the position of the steel girder installation seats, the upper parts and the lower parts of the steel, the diameter of the hole is matched with that of the screw, a concrete lower flange is arranged on the lower portion of the steel beam, a steel beam mounting seat protruding upwards is arranged on the top surface of the concrete lower flange, and a plurality of conical cast irons are arranged inside the concrete lower flange.
Furthermore, a decorative layer is arranged on the upper surface of the upper flange of the concrete.
Furthermore, the steel beam comprises steel structures with common specifications such as I-steel, "H" section steel, "T" section steel, channel steel, square steel, corrugated steel and the like.
Furthermore, the conical cast iron in the concrete upper flange is vertically arranged, the side with the smaller diameter of the conical cast iron in the concrete upper flange is positioned at the lower part, and the conical cast iron in the concrete lower flange is vertically arranged, and the side with the smaller diameter of the conical cast iron in the concrete lower flange is positioned at the upper part.
Furthermore, the bottom surface of the conical cast iron in the concrete upper flange is flush with the bottom surface of the steel beam mounting seat at the bottom of the concrete upper flange, and the top surface of the conical cast iron in the concrete lower flange is flush with the top surface of the steel beam mounting seat at the top of the concrete lower flange.
Furthermore, the minimum diameter of the conical cast iron is matched with the diameter of the screw, and the internal thread of the conical cast iron is matched with the thread of the screw.
Further, the internal thread is positioned in the center of the side surface with the smaller diameter of the conical cast iron.
Compared with the prior art, the beneficial effects of the utility model are that:
in the utility model, the conical cast iron is directly poured inside the concrete upper flange and the concrete lower flange, the concrete upper flange and the concrete lower flange are processed in factories to form a whole assembly module, after being transported to the site, the steel beam can be rapidly fixed on the site through the nut and the screw rod, the site construction period can be greatly reduced, meanwhile, the transportation is convenient, the longitudinal shearing resistance between the concrete upper flange and the steel beam as well as between the concrete lower flange can be enhanced through the nut and the screw rod, the whole steel-concrete composite beam is firmer, the nut and the steel beam have replaceability, the product with the same type can be directly used for replacement after being damaged, the maintenance time can be greatly shortened, the whole structure is more energy-saving and environment-friendly, the longitudinal stress effect of the whole structure is better through pre-embedding the conical cast iron into the concrete, and the whole structure transversely and longitudinally has very strong bearing capacity, and because the special round platform structure of toper cast iron, toper cast iron and concrete top flange, the connection of toper cast iron and concrete bottom flange is firm, and vertical atress is effectual, has certain resistance to plucking, through setting up the girder steel mount pad, lets girder steel and concrete top flange, increased the buffering between girder steel and the concrete bottom flange, overall structure is more firm, through setting up two girder steels between concrete top flange and concrete bottom flange, has increased the intensity of steel concrete composite beam.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of a tapered cast iron portion.
In the figure: 1. the concrete top flange, 2, the concrete bottom flange, 3, the steel beam, 4, the screw, 5, the nut, 6, the conical cast iron, 7, the hole, 8, the steel beam mounting seat, and 9, the protruding edge of the top flange.
Detailed Description
Example (b): as shown in fig. 1, 2 and 3, the steel beam comprises two steel beams 3 horizontally arranged, the two steel beams 3 are arranged in parallel, the upper part of each steel beam 3 is provided with a concrete upper flange 1, the concrete upper flange 1 is of a horizontally arranged plate-shaped structure, the bottom surface of the concrete upper flange 1 is provided with two steel beam mounting seats 8 protruding downwards, the top surface of each steel beam 3 is contacted with the bottom surface of the corresponding steel beam mounting seat 8, the front side and the rear side of the concrete upper flange 1 are provided with upper flange protruding edges 9, a plurality of conical cast irons 6 are arranged inside the concrete upper flange 1, the conical cast irons 6 are of a circular table-shaped structure, one side surface with smaller diameter of the conical cast irons 6 is provided with a threaded hole, a screw rod 4 matched with an internal thread is arranged in the threaded hole, a screw cap 5 is arranged on the screw rod 4, the conical cast irons 6 correspond to the position of, the number and the positions of the holes 7 correspond to those of the conical cast iron 6, the diameter of each hole 7 is matched with that of the corresponding screw rod 4, the lower portion of each steel beam 3 is provided with a concrete lower flange 2, the top surface of each concrete lower flange 2 is provided with a steel beam mounting seat 8 protruding upwards, and the plurality of conical cast iron 6 are arranged inside each concrete lower flange 2.
The upper surface of the concrete upper flange 1 is provided with a decorative layer, the steel beam 3 comprises steel structures with common specifications such as I-steel, H-shaped steel, T-shaped steel, channel steel, square steel, corrugated steel and the like, the conical cast iron 6 in the concrete upper flange 1 is vertically arranged, the smaller diameter side of the conical cast iron 6 in the concrete upper flange 1 is positioned at the lower part, the conical cast iron 6 in the concrete lower flange 2 is vertically arranged, the smaller diameter side of the conical cast iron 6 in the concrete lower flange 2 is positioned at the upper part, the bottom surface of the conical cast iron 6 in the concrete upper flange 1 is flush with the bottom surface of the steel beam mounting seat 8 at the bottom of the concrete upper flange 1, the top surface of the conical cast iron 6 in the concrete lower flange 2 is flush with the top surface of the steel beam mounting seat 8 at the top of the concrete lower flange 2, the smallest diameter of the conical cast iron 6 is matched with the diameter of the screw rod 4, and, the internal thread is located in the center of the smaller diameter side of the tapered cast iron 6.
The working process is as follows: the concrete upper flange 1 and the concrete lower flange 2 are prefabricated in a factory, when the concrete upper flange 1 and the concrete lower flange 2 are poured in the factory, conical cast iron 6 is arranged in advance at the opposite positions, then concrete is poured into a mould, the conical cast iron 6 is fixed inside by the concrete, meanwhile, a corresponding decorative layer is laid on the upper surface of the concrete upper flange 1 according to the requirement of field use, after the concrete upper flange 1 and the concrete lower flange 2 are completely processed, the concrete upper flange 1 and the concrete lower flange 2 are transported to an installation site, the steel beam 3 needs to be drilled in the factory in advance, the steel beam 3 is provided with through holes at the corresponding positions, the number and the diameter of the through holes are matched with the conical cast iron 6, after the steel beam 3 is processed, the steel beam is transported to a construction site, when the steel beam 3 is installed on the site, the top surface of the steel beam 3 is contacted with the bottom surface of the, and the position is adjusted to make the position of the conical cast iron 6 correspond to the position of the hole 7 of the steel beam 3, the steel beam 3 is fixedly connected with the concrete upper flange 1 by the connection of the screw cap 5 and the screw rod 4, the tightness degree of the mutual matching of the steel beam 3 and the concrete upper flange 1 is controlled by adjusting the screw cap 5, the steel beam 3 is fixedly connected with the concrete lower flange 2 according to the method, the installation can be completed, the surface of the completed concrete combined beam is provided with a corresponding decorative layer meeting the use requirement, the corresponding decorative layer does not need to be laid again, the bridge construction is taken as an example, the structural part can be directly inspected after being installed, the structural part can be directly used after being inspected and qualified, the assembly rate can be improved, and the field construction period is greatly reduced.
Claims (6)
1. The utility model provides a full assembled steel concrete combination case roof beam which characterized in that: the steel beam comprises two steel beams (3) which are horizontally and transversely arranged, the two steel beams (3) are arranged in parallel, the upper parts of the steel beams (3) are provided with concrete top flanges (1), the concrete top flanges (1) are of a plate-shaped structure which is horizontally arranged, the bottom surfaces of the concrete top flanges (1) are provided with two steel beam mounting seats (8) which protrude downwards, the top surface of each steel beam (3) is contacted with the bottom surfaces of the corresponding steel beam mounting seats (8), the front side and the rear side of each concrete top flange (1) are provided with top flange protruding edges (9), a plurality of conical cast irons (6) are arranged inside the concrete top flanges (1), each conical cast iron (6) is of a circular table type structure, one side surface with a smaller diameter of each conical cast iron (6) is provided with a threaded hole, a screw rod (4) matched with an internal thread is arranged in each threaded hole, a nut (5) is arranged on each screw rod (4, a plurality of holes (7) are formed in the upper portion and the lower portion of the steel beam (3), the number and the positions of the holes (7) correspond to those of the conical cast iron (6), the diameter of each hole (7) is matched with that of the corresponding screw (4), a concrete lower flange (2) is arranged on the lower portion of the steel beam (3), a steel beam mounting seat (8) protruding upwards is arranged on the top surface of the concrete lower flange (2), and a plurality of conical cast iron (6) are arranged inside the concrete lower flange (2).
2. The fully assembled steel reinforced concrete composite box girder according to claim 1, characterized in that: the upper surface of the concrete upper flange (1) is provided with a decorative layer.
3. The fully assembled steel reinforced concrete composite box girder according to claim 1, characterized in that: the tapered cast iron (6) in the concrete upper flange (1) is vertically arranged, the side face with the smaller diameter of the tapered cast iron (6) in the concrete upper flange (1) is positioned at the lower part, the tapered cast iron (6) in the concrete lower flange (2) is vertically arranged, and the side face with the smaller diameter of the tapered cast iron (6) in the concrete lower flange (2) is positioned at the upper part.
4. The fully assembled steel reinforced concrete composite box girder according to claim 1, characterized in that: the bottom surface of the conical cast iron (6) in the concrete upper flange (1) is flush with the bottom surface of the steel beam mounting seat (8) at the bottom of the concrete upper flange (1), and the top surface of the conical cast iron (6) in the concrete lower flange (2) is flush with the top surface of the steel beam mounting seat (8) at the top of the concrete lower flange (2).
5. The fully assembled steel reinforced concrete composite box girder according to claim 1, characterized in that: the minimum diameter of the conical cast iron (6) is matched with the diameter of the screw (4), and the internal thread of the conical cast iron (6) is matched with the thread of the screw (4).
6. The fully assembled steel reinforced concrete composite box girder according to claim 1, characterized in that: the internal thread is positioned in the center of the side surface with the smaller diameter of the conical cast iron (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473605.3U CN211713647U (en) | 2019-12-31 | 2019-12-31 | Full-assembly type steel concrete combined box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473605.3U CN211713647U (en) | 2019-12-31 | 2019-12-31 | Full-assembly type steel concrete combined box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211713647U true CN211713647U (en) | 2020-10-20 |
Family
ID=72821586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922473605.3U Expired - Fee Related CN211713647U (en) | 2019-12-31 | 2019-12-31 | Full-assembly type steel concrete combined box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211713647U (en) |
-
2019
- 2019-12-31 CN CN201922473605.3U patent/CN211713647U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201020 |