CN212104805U - Novel partially prefabricated steel-concrete composite beam - Google Patents
Novel partially prefabricated steel-concrete composite beam Download PDFInfo
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- CN212104805U CN212104805U CN201922410790.1U CN201922410790U CN212104805U CN 212104805 U CN212104805 U CN 212104805U CN 201922410790 U CN201922410790 U CN 201922410790U CN 212104805 U CN212104805 U CN 212104805U
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Abstract
The utility model discloses a novel partially-prefabricated steel-concrete composite beam, which comprises a rectangular pipe flange, a U-shaped channel steel and a straight web plate for connecting the rectangular pipe flange and the U-shaped channel steel, wherein a cast-in-place concrete wing plate is arranged above the rectangular pipe flange, the upper surface of the rectangular pipe flange is provided with an open slot, and cast-in-place concrete is filled in the open slot; the straight web plate is connected with the flange of the rectangular pipe through a welding seam, and concrete is filled in the U-shaped channel steel. The utility model provides a partial prefabricated steel-concrete combination beam possesses good stability and bearing capacity.
Description
Technical Field
The utility model relates to a novel partial prefabricated steel-concrete composite beam belongs to building structure technical field.
Background
A steel-concrete composite beam is a novel structure developed on the basis of a steel structure and a common concrete structure. The cast-in-place steel-concrete composite beam is a common form and is mainly characterized in that steel is arranged in concrete, the concrete is in a three-dimensional stress state under the restraint of the steel, and meanwhile, the steel is wrapped by the concrete and is not easy to bend, so that the bearing capacity, the ductility and the seismic performance of the composite beam can be effectively improved by the combination mode; however, the cast-in-place steel-concrete composite beam has the defects of difficult construction, slow construction speed, high labor cost, high economic cost and the like due to complex node connection and complex process, so that the application of the cast-in-place steel-concrete composite beam in actual engineering is limited.
The prefabricated concrete structure is a concrete structure which is formed by assembling prefabricated components serving as main stress components, and the prefabricated concrete composite beam is one of the prefabricated concrete structure and can be prefabricated in factories and connected on site, so that the prefabricated concrete structure has the advantages of convenience in construction, high construction speed, labor saving and the like, and the construction processes of formwork support and formwork removal on site are reduced; however, the prefabricated concrete structure has poor integrity and poor rigidity, stability, local buckling resistance and torsion resistance compared with a cast-in-place steel-concrete structure.
SUMMERY OF THE UTILITY MODEL
The purpose is as follows: in order to overcome the defects in the prior art, the utility model provides a novel partially prefabricated steel-concrete composite beam.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme does:
a novel partially prefabricated steel-concrete composite beam comprises a rectangular pipe flange, U-shaped channel steel and a straight web plate for connecting the rectangular pipe flange and the U-shaped channel steel, wherein a cast-in-place concrete wing plate is arranged above the rectangular pipe flange, an open slot is formed in the upper surface of the rectangular pipe flange, and cast-in-place concrete is filled in the open slot; the straight web plate is connected with the flange of the rectangular pipe and the U-shaped channel steel through welding seams, and concrete is filled in the U-shaped channel steel.
Furthermore, a steel reinforcement framework is arranged in the cast-in-place concrete wing plate.
Furthermore, the side surface of the straight web plate is provided with a stiffening rib plate.
Further, the flanges of the rectangular pipe, the U-shaped channel steel and the straight web plate are all made of Q235 steel or Q390 steel.
Further, the width of the U-shaped channel steel is larger than that of the flange of the rectangular tube, and the width of the U-shaped channel steel is smaller than that of the cast-in-place concrete wing plate.
Further, the straight web plate is located at the axial center line of the U-shaped channel steel.
Has the advantages that: the novel partially prefabricated steel-concrete combined beam provided by the utility model has good stability and bearing capacity; the existence of the rectangular pipe flange and the cast-in-place concrete wing plate improves the lateral bending, twisting and buckling resistance of the composite beam, better exerts the performance of steel, and simultaneously, the rectangular pipe flange with an opening on the upper surface and the wing plate are cast in place together, thereby effectively solving the problem of the connection reliability; the U-shaped channel steel is filled with concrete to serve as a lower flange, so that the bending rigidity and the bearing capacity of the combined beam are improved, the buckling resistance of the flange is improved, and the negative bending moment resistance of the combined beam is improved.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a perspective view of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the novel partially prefabricated steel-concrete composite beam comprises a rectangular pipe flange 1, a U-shaped channel steel 2, and a straight web 3 connecting the rectangular pipe flange 1 and the U-shaped channel steel 2, wherein a cast-in-place concrete wing plate 4 is arranged above the rectangular pipe flange 1.
An open slot is formed in the upper surface of the rectangular pipe flange 1, and cast-in-place concrete 5 is filled in the open slot; a steel reinforcement framework 7 is arranged in the cast-in-place concrete wing plate 4, the rectangular pipe flange 1 and the wing plate above the rectangular pipe flange are cast in place together, the problem of connection reliability is effectively solved, and the overall performance and the cooperative working capacity of the composite beam are improved.
And the straight web 3 is connected with the flange 1 of the rectangular pipe and the U-shaped channel steel 2 by welding seams. The straight web 3 is inserted into the axial center line position of the U-shaped channel steel 2, and concrete 6 is filled in the U-shaped channel steel 2. The steel skeleton that rectangular pipe edge of a wing 1, straight web 3, U type channel-section steel 2 and concrete 6 in the U type channel-section steel formed prefabricates in earlier stage, and the part has reduced the construction load and the hoist and mount cost of composite beam.
And a stiffening rib plate 8 is arranged on the side surface of the straight web plate 3, so that the strength of the steel skeleton is improved.
The width of U type channel-section steel 2 is greater than the width on rectangular pipe edge of a wing 1, and the width of U type channel-section steel 2 is less than the width of cast in situ concrete pterygoid lamina 4, forms stable combination beam structure.
The rectangular pipe flange 1, the U-shaped channel steel 2 and the straight web 3 are all made of Q235 steel or Q390 steel.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel part prefabricated steel-concrete composite beam which characterized in that: the cast-in-place concrete wing plate is arranged above the rectangular pipe flange, an open slot is formed in the upper surface of the rectangular pipe flange, and cast-in-place concrete is filled in the rectangular pipe flange; the straight web plate is connected with the flange of the rectangular pipe and the U-shaped channel steel through welding seams, and concrete is filled in the U-shaped channel steel.
2. The novel partially prefabricated steel-concrete composite beam as claimed in claim 1, wherein: and a steel reinforcement framework is arranged in the cast-in-place concrete wing plate.
3. The novel partially prefabricated steel-concrete composite beam as claimed in claim 1, wherein: and a stiffening rib plate is arranged on the side surface of the straight web plate.
4. The novel partially prefabricated steel-concrete composite beam as claimed in claim 1, wherein: the rectangular pipe flange, the U-shaped channel steel and the straight web plate are all made of Q235 steel or Q390 steel.
5. The novel partially prefabricated steel-concrete composite beam as claimed in claim 1, wherein: the width of the U-shaped channel steel is larger than that of the flange of the rectangular pipe, and the width of the U-shaped channel steel is smaller than that of the cast-in-place concrete wing plate.
6. The novel partially prefabricated steel-concrete composite beam as claimed in claim 1, wherein: the straight web plate is located at the axial center line of the U-shaped channel steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922410790.1U CN212104805U (en) | 2019-12-28 | 2019-12-28 | Novel partially prefabricated steel-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922410790.1U CN212104805U (en) | 2019-12-28 | 2019-12-28 | Novel partially prefabricated steel-concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212104805U true CN212104805U (en) | 2020-12-08 |
Family
ID=73623848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922410790.1U Active CN212104805U (en) | 2019-12-28 | 2019-12-28 | Novel partially prefabricated steel-concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212104805U (en) |
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2019
- 2019-12-28 CN CN201922410790.1U patent/CN212104805U/en active Active
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