CN210195036U - Groove type composite beam - Google Patents
Groove type composite beam Download PDFInfo
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- CN210195036U CN210195036U CN201920536413.XU CN201920536413U CN210195036U CN 210195036 U CN210195036 U CN 210195036U CN 201920536413 U CN201920536413 U CN 201920536413U CN 210195036 U CN210195036 U CN 210195036U
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- concrete beam
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Abstract
The utility model relates to a groove-type superposed beam, which comprises a precast concrete beam; the precast concrete beam is provided with a plurality of cast-in-place grooves for casting concrete in situ, and the wall of each cast-in-place groove is provided with a steel connecting component. An object of the utility model is to provide a can effectively promote the cell type composite beam of engineering construction speed and quality. The utility model has the advantages that: the groove-shaped superposed beam has the advantages of light self weight of a factory prefabricated part, convenient transportation and hoisting, and is particularly suitable for a large-span concrete floor system.
Description
Technical Field
The utility model relates to a building element technical field, especially a slot type composite beam.
Background
In recent years, the modernization of assembly type buildings and industries is rapidly developed in China. The national institute is discharged as the guide opinion about the vigorous development of the assembly type building, so that the green building and the building material are further definitely and actively popularized in the future, and the assembly type building accounts for 30 percent of the newly built building in about 10 years.
Existing fabricated concrete buildings typically employ composite beams of rectangular cross-section. When the span of the beam is large, the dead weight of the superposed beam with the rectangular cross section is large, and the lifting and the transportation are difficult.
Disclosure of Invention
An object of the utility model is to provide a can effectively promote the cell type composite beam of engineering construction speed and quality.
The purpose of the utility model is realized through the following technical scheme: a channel type composite beam includes a precast concrete beam; the precast concrete beam is provided with a plurality of cast-in-place grooves for casting concrete in situ, and the wall of each cast-in-place groove is provided with a steel connecting component.
Compare prior art, the utility model has the advantages of:
1. the groove-shaped superposed beam has the advantages of light self weight of a factory prefabricated part, convenient transportation and hoisting, and is particularly suitable for a large-span concrete floor system.
2. The permanently arranged combined steel plate obviously improves the production efficiency of a factory. Meanwhile, the roughness of the joint surface of the new concrete and the old concrete is obviously improved and controllable, and the combination strength of the superposed beam can be fully applied in the design.
3. The combination steel plate and the inner support system do not need special strengthening measures in installation, the normal work of the superposed beam cannot be influenced by slight combination steel plate deformation caused in the concrete pouring stage of a prefabricating factory, and the manufacturing cost of the inner formwork system can be obviously reduced.
Drawings
Fig. 1 is an axial view of a precast concrete beam.
Fig. 2 is an axial view of the bonded steel plate.
Fig. 3 is a sectional view of the groove-shaped composite beam (H: the height direction of the composite beam; L: the longitudinal axis direction of the composite beam).
Fig. 4 is a diagram of a production mold of a channel type composite beam.
Description of reference numerals: the concrete floor slab comprises 1 precast concrete beam, 1-1 cast-in-place groove, 2 combined steel plate, 2-1 bending section, 2-2 anti-skidding teeth, 3 precast floor slab, 4 outer side formwork, 5 steel reinforcement cage, 6-1 inner supporting upright rod, 6-2 inner supporting cross rod, 6-3 inner supporting reaction rod and 6-4 connecting lug plate.
Detailed Description
The invention is described in detail below with reference to the drawings and examples of the specification:
fig. 1 to 4 are schematic views illustrating an embodiment of a channel type composite beam according to the present invention.
A channel type composite beam comprises a precast concrete beam 1; the precast concrete beam 1 is provided with a plurality of cast-in-place grooves 1-1 for casting concrete in situ, and the wall of each cast-in-place groove 1-1 is provided with a steel connecting component.
The arrangement of the cast-in-place groove 1-1 greatly reduces the dead weight of the precast concrete beam 1, is convenient to transport and hoist, and can ensure the strength of the groove type composite beam by casting concrete into the cast-in-place groove 1-1 when the precast concrete beam 1 is installed.
The whole appearance of the precast concrete beam 1 is a cuboid; the cast-in-place troughs 1-1 are arranged on the upper side surface of the precast concrete beam 1 and are distributed at intervals along the length direction of the precast concrete beam 1.
And a reinforcement cage 5 is embedded in the precast concrete beam 1.
The steel connecting component is a combined steel plate 2 matched with the wall of the cast-in-place tank 1-1.
The bonded steel plate 2 is made of a steel plate by machining. The bonded steel plate 2 may be formed in a U shape as a whole by bending or welding.
The wall of the cast-in-place tank 1-1 is provided with a plurality of transverse tanks which are distributed at intervals up and down, and each transverse tank extends transversely; the combined steel plate 2 is provided with a bending section 2-1 matched with the transverse groove. The bending section 2-1 can be arranged in a "[" shape.
And anti-skid teeth 2-2 are arranged on the outer side surface of the combination steel plate 2.
The anti-skid teeth 2-2 extend along the height direction of the cast-in-place trough 1-1.
The anti-skid teeth 2-2 are positioned in a plane between the bending sections 2-1 of the combined steel plate, and the anti-skid teeth 2-2 are distributed in an array.
Or the outer side surface of the combination steel plate 2 can be provided with a reticular antiskid lug.
The precast concrete beam 1 and the steel connecting component are integrated through precast pouring.
The design of the bending section 2-1 and the anti-skid teeth 2-2 on the combined steel plate 2 not only ensures the connection stability of the precast concrete beam 1 and the combined steel plate 2, but also ensures that new concrete poured in the cast-in-place groove 1-1 is combined with precast concrete of the precast concrete beam 1 more firmly.
The specific prefabrication process is as follows:
firstly, erecting an outer side template 4 of a precast beam; then placing the reinforcement cage 5 of the precast concrete beam 1 into the outer side template 4 and adjusting the reinforcement cage in place; then, integrally placing the processed and formed combined steel plate 2 into the inner side of the outer side template 4 and adjusting the combined steel plate in place; then an inner support system formed by the inner support upright stanchions 6-1, the inner support cross rods 6-2 and the inner support reaction rods 6-3 is arranged on the inner side of the combination steel plate 2, and the inner support system is connected with the outer side formwork 4 through the connecting ear plates 6-4.
After the steps are completed, concrete pouring operation can be carried out; after the strength of the concrete reaches the design requirement, firstly removing the inner support system, and then removing the outer side template 4; the bonded steel plates 2 are permanently connected to the precast concrete beam 1.
And after the channel type superposed beam reaches the factory strength, the channel type superposed beam can be transported to a construction site for assembly, and site concrete pouring is carried out. And finally finishing all construction operations of the composite beam.
Claims (9)
1. A slot type composite beam is characterized in that: the prefabricated concrete beam comprises a prefabricated concrete beam (1); the precast concrete beam (1) is provided with a plurality of cast-in-place grooves (1-1) for casting concrete in situ, and the wall of each cast-in-place groove (1-1) is provided with a steel connecting component.
2. The channel beam of claim 1, wherein: the steel connecting component is a combined steel plate (2) matched with the wall of the cast-in-place tank (1-1);
the wall of the cast-in-place tank (1-1) is provided with a plurality of transverse tanks which are distributed at intervals up and down, and each transverse tank extends transversely; the combined steel plate (2) is provided with a bending section (2-1) matched with the transverse groove.
3. The channel beam of claim 2, wherein: the outer side surface of the combination steel plate (2) is provided with anti-skid teeth (2-2).
4. The channel beam defined in claim 3, wherein: the anti-skid teeth (2-2) extend along the height direction of the cast-in-place groove (1-1).
5. The channel beam defined in claim 4, wherein: the anti-skid teeth (2-2) are positioned in a plane between the bending sections (2-1) of the combined steel plate, and the anti-skid teeth (2-2) are distributed in an array.
6. The channel beam of claim 2, wherein: the outer side surface of the combination steel plate (2) is provided with a reticular antiskid bulge.
7. The channel beam of claim 2, wherein: the precast concrete beam (1) and the steel connecting component are integrated through precast pouring.
8. The channel beam defined in any one of claims 1 to 7, wherein: the whole appearance of the precast concrete beam (1) is a cuboid;
the cast-in-place troughs (1-1) are arranged on the upper side surface of the precast concrete beam (1) and are distributed at intervals along the length direction of the precast concrete beam (1).
9. The channel beam of claim 8, wherein: and a reinforcement cage (5) is embedded in the precast concrete beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920536413.XU CN210195036U (en) | 2019-04-19 | 2019-04-19 | Groove type composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920536413.XU CN210195036U (en) | 2019-04-19 | 2019-04-19 | Groove type composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210195036U true CN210195036U (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920536413.XU Active CN210195036U (en) | 2019-04-19 | 2019-04-19 | Groove type composite beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158856A (en) * | 2019-04-19 | 2019-08-23 | 福建省建筑设计研究院有限公司 | Groove profile composite beam |
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2019
- 2019-04-19 CN CN201920536413.XU patent/CN210195036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158856A (en) * | 2019-04-19 | 2019-08-23 | 福建省建筑设计研究院有限公司 | Groove profile composite beam |
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