CN209891550U - Combined beam using prefabricated steel reinforced concrete - Google Patents
Combined beam using prefabricated steel reinforced concrete Download PDFInfo
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- CN209891550U CN209891550U CN201822272125.6U CN201822272125U CN209891550U CN 209891550 U CN209891550 U CN 209891550U CN 201822272125 U CN201822272125 U CN 201822272125U CN 209891550 U CN209891550 U CN 209891550U
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Abstract
The combined beam using the prefabricated steel reinforced concrete comprises a steel bar truss floor bearing plate and the prefabricated steel reinforced concrete, wherein the prefabricated steel reinforced concrete comprises the prefabricated concrete and a steel beam, a part of web plates and a lower flange plate of the steel beam are pre-embedded in the prefabricated concrete, and an upper flange plate and the other part of web plates of the steel beam are exposed on the prefabricated concrete; the precast concrete is located between a bottom plate of the steel bar truss floor bearing plate and a lower flange plate of the steel beam, an upper chord steel bar of the steel bar truss floor bearing plate is lapped on the upper flange plate of the steel beam, and concrete is cast in situ in cavities on two sides of the steel bar truss floor bearing plate and a steel beam web plate, so that the steel beam and the steel bar truss floor bearing plate are connected into an integral structure. The utility model provides an improved steel bar truss building carrier plate and girder steel connected node's wholeness has reduced fire prevention, anticorrosive treatment requirement and complicated construction process, need not weld shear connectors such as toggle nail on the girder steel, reduces the steel quantity, has improved the stability and the bearing capacity of girder steel.
Description
Technical Field
The utility model relates to a prefabricated reinforcing bar concrete's combination beam.
Background
The development of modern building engineering standardized design, industrial production and assembly construction accelerates the popularization and application of intelligent and assembly type buildings, and a steel structure is an important structural form of the assembly type buildings. The floor system is an important component of a steel structure building, and the development of industrial production and assembly construction technology of the floor system is an important factor influencing the construction period. The steel bar truss floor support plate is a novel floor form which is gradually popularized and applied in recent years.
The traditional design scheme is that a steel beam is usually arranged below a bottom plate of a floor bearing plate, and the steel beam is effectively solidified with a floor slab through studs welded to an upper flange plate and poured with concrete. At the connecting position of the floor deck end, corresponding construction steel bars are required to be arranged to strengthen the connection. In addition, because of the design rigidity and the bearing capacity of the steel beam, the steel beam with larger section height is often required to be designed, so that the net height of a floor is reduced, and the utilization rate of a building space is reduced.
Optimizing the structural design, improving the industrialized and standardized production efficiency and simplifying the construction process are important ways for shortening the engineering construction period and accelerating the popularization and application of the assembly type building.
Disclosure of Invention
The utility model discloses overcome prior art's the aforesaid not enough and defect, provide a combination beam and construction method that girder steel and steel bar truss building carrier plate are constituteed to reach and simplify structural design, accelerate construction speed, reinforced concrete floor, girder steel are connected, improve bearing capacity's purpose.
The utility model discloses a following technical scheme realizes:
use combination beam of prefabricated reinforcing bar concrete, its characterized in that: the steel bar truss floor support plate structure comprises a steel bar truss floor support plate and prefabricated steel reinforced concrete, wherein the end part of the steel bar truss floor support plate structure comprises a support connecting piece, web member steel bars, upper chord steel bars and lower chord steel bars; the prefabricated steel rib concrete comprises prefabricated concrete and a steel beam, wherein a part of web plates and a part of lower flange plates of the steel beam are embedded in the prefabricated concrete, and an upper flange plate and the other part of web plates of the steel beam are exposed on the prefabricated concrete; the precast concrete is positioned between the bottom plate of the steel bar truss floor bearing plate and the lower flange plate of the steel beam; the upper chord steel bar of the steel bar truss floor bearing plate is lapped on the upper flange plate of the steel beam, and the upper chord steel bar and the upper flange plate are welded and fixed; the steel beam web plate is provided with a reinforcement penetrating hole at a position corresponding to a lower chord steel bar of the steel beam truss floor bearing plate, the lower chord steel bar of the steel beam truss floor bearing plate is in binding and overlapping with a connecting steel bar at the reinforcement penetrating hole of the steel beam web plate, and cast-in-place concrete is filled in cavities at two sides of the steel beam truss floor bearing plate and the steel beam web plate, so that the prefabricated steel rib concrete and the steel beam truss floor bearing plate are connected into an integral structure to form the combined beam.
Preferably, the upper chord steel bar of the steel bar truss floor bearing plate extends to the width of the steel beam upper flange plate, and the upper chord steel bar and the steel beam upper flange plate are welded and fixed.
Furthermore, the bottom plate of steel bar truss floor carrier plate can select detachable or non-detachable type bottom plate according to actual structural design needs.
Preferably, two sides of the upper flange plate of the steel beam are provided with support connecting pieces, the upper ends of the support connecting pieces are supported below the upper chord steel bars, and the lower ends of the support connecting pieces are supported on the precast concrete.
The steel bar truss floor support plate is not limited to the structural form of the floor support plate introduced in the embodiment, and is suitable for connection design of various steel bar truss floor support plates.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the net height of the floor is increased, the space utilization rate is improved, the section height of the steel beam can be reduced under the condition of the same rigidity and bearing capacity design requirements, the net height of the floor is increased, and the use efficiency of the building space is improved; on the other hand, under the requirement of the same floor clear height, the height of the section of the beam can be increased, and the design bearing capacity of the beam is improved;
2. the integrity and the bearing capacity of the connecting area are improved, the steel beam part is moved upwards to the thickness of the floor slab, and the integral connection of the steel beam and the floor slab is realized through the integral pouring of concrete;
3. the bearing capacity of the steel beam is improved, the stability and the bearing capacity of the combined steel beam are improved by pouring concrete in the cavities on the two sides of the web plate of the steel beam, and the design of the vertical stiffening plate is not needed, so that the using amount of steel is reduced to a certain extent;
4. the structural design is simplified, the industrial prefabrication and construction efficiency is improved, shear-resistant parts such as studs and the like do not need to be welded on the upper flange plate of the steel beam, the steel beam and the upper chord steel bar of the steel bar truss floor bearing plate are welded and fixed, and the integral consolidation is realized by pouring concrete;
5. the fireproof and anticorrosive design performance of the steel beam is improved, the steel beam part moves up to the floor slab, concrete is poured in cavities on two sides of a web plate of the steel beam, a lower flange of the steel beam is buried in the precast concrete, the steel beam is protected in fireproof and anticorrosive aspects, and the cost is reduced.
Drawings
Fig. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic view of a cross-section of the A-A structure of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
fig. 4 is a schematic plan view of the present invention.
Description of the reference and corresponding elements in the figures:
1-steel beam, 1-2-steel bar truss floor bearing plate, 1-3-precast concrete, 1-5-bottom plate, 1-6-support connecting piece, 1-7-connecting steel bar 1-8-upper chord steel bar, 1-9-lower chord steel bar, 1-10-web member steel bar and 1-11 distribution steel bar; 1-12-support horizontal ribs;
2-1-upper flange plate of steel beam 1-1, 2-web plate of steel beam 1-1 and 2-3-lower flange plate of steel beam 1-1.
Detailed Description
The technical scheme of the utility model is further explained below with the attached drawings.
The combined beam using the prefabricated bone concrete comprises a steel bar truss floor bearing plate 1-2 and the prefabricated steel bone concrete, wherein the end part of the steel bar truss floor bearing plate 1-2 comprises a support connecting piece 1-6, web member steel bars 1-10, upper chord steel bars 1-8 and lower chord steel bars 1-9; the prefabricated steel reinforced concrete comprises prefabricated concrete 1-3 and a steel beam 1-1, wherein the lower half part of a web plate 2-2 and a lower flange plate 2-3 of the steel beam 1-1 are pre-embedded in the prefabricated concrete 1-3, and an upper flange plate 2-1 and the other part of the web plate 2-2 of the steel beam 1-1 are exposed out of the prefabricated concrete 1-3; the precast concrete 1-3 is positioned between a bottom plate 1-5 of the steel bar truss floor bearing plate 1-2 and a lower flange plate 2-3 of the steel beam 1-1; upper chord steel bars 1-8 of the steel bar truss floor bearing plate 1-2 are lapped on an upper flange plate 2-1 of the steel beam 1-1, and the upper chord steel bars 1-8 are welded and fixed with the upper flange plate 2-1; the web plate 2-2 of the steel beam 1-1 is provided with a reinforcement penetrating hole at a position corresponding to the lower chord steel bar 1-9 of the steel bar truss floor bearing plate 1-2, the lower chord steel bar 1-9 of the steel bar truss floor bearing plate 1-2 is bound and lapped with the connecting steel bar 1-7 at the reinforcement penetrating hole of the web plate 2-2 of the steel beam 1-1, and the cavities at two sides of the web plate 2-2 of the steel bar truss floor bearing plate 1-2 and the steel beam 1-1 are filled with cast-in-place concrete, so that the prefabricated steel reinforced concrete and the steel bar truss floor bearing plate 1-2 are connected into an integral structure to form a combined beam.
And upper chord steel bars 1-8 of the steel bar truss floor bearing plate 1-2 extend to the width of an upper flange plate 2-1 of the steel beam 1-1, and the upper chord steel bars 1-8 and the upper flange plate 2-1 of the steel beam 1-1 are welded and fixed.
The bottom plate 1-5 of the steel bar truss floor support plate 1-2 can be a detachable or non-detachable bottom plate according to the actual structural design requirement.
Support connecting pieces 1-6 are arranged on two sides of an upper flange plate 2-1 of the steel beam 1-1, the upper ends of the support connecting pieces 1-6 are supported below the upper chord steel bars 1-8, and the lower ends of the support connecting pieces 1-6 are supported on the precast concrete 1-3.
The construction method of the combined beam using the prefabricated steel reinforced concrete comprises the following steps:
step 1): prefabricating the steel bar truss floor bearing plate in a factory;
step 2): pouring concrete between the bottom plate of the steel bar truss floor bearing plate and the lower flange of the steel beam in a factory to form prefabricated steel reinforced concrete;
step 3): hoisting and positioning the steel beam and the steel bar truss floor bearing plate on site;
step 4): welding and fixing the upper chord steel bar of the steel bar truss floor bearing plate and the upper flange plate of the steel beam, welding and fixing the support connecting piece and the steel beam, and arranging a connecting steel bar at a steel beam web plate reinforcement penetrating hole to be bound and lapped with the lower chord steel bar of the steel bar truss floor bearing plate;
step 5): and performing concrete pouring on site, wherein the concrete pouring on site comprises the integral concretion of the steel beam and the floor bearing plate, and the concrete pouring on site comprises the integral concretion of the cavities on two sides of the steel beam web plate and the steel bar truss floor bearing plate.
The steel bar truss floor support plate is not limited to the structural form of the floor support plate introduced in the embodiment, and is suitable for connection design of various steel bar truss floor support plates.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the present inventive concept.
Claims (4)
1. Use combination beam of prefabricated reinforcing bar concrete, its characterized in that: the steel bar truss floor support plate structure comprises a steel bar truss floor support plate and prefabricated steel reinforced concrete, wherein the end part of the steel bar truss floor support plate structure comprises a support connecting piece, web member steel bars, upper chord steel bars and lower chord steel bars; the prefabricated steel rib concrete comprises prefabricated concrete and a steel beam, wherein a part of web plates and a part of lower flange plates of the steel beam are embedded in the prefabricated concrete, and an upper flange plate and the other part of web plates of the steel beam are exposed on the prefabricated concrete; the precast concrete is positioned between the bottom plate of the steel bar truss floor bearing plate and the lower flange plate of the steel beam; the upper chord steel bar of the steel bar truss floor bearing plate is lapped on the upper flange plate of the steel beam, and the upper chord steel bar and the upper flange plate are welded and fixed; the steel beam web plate is provided with a reinforcement penetrating hole at a position corresponding to a lower chord steel bar of the steel beam truss floor bearing plate, the lower chord steel bar of the steel beam truss floor bearing plate is in binding and overlapping with a connecting steel bar at the reinforcement penetrating hole of the steel beam web plate, and cast-in-place concrete is filled in cavities at two sides of the steel beam truss floor bearing plate and the steel beam web plate, so that the prefabricated steel rib concrete and the steel beam truss floor bearing plate are connected into an integral structure to form the combined beam.
2. The composite girder using the precast steel reinforced concrete according to claim 1, wherein: the last chord reinforcing bar of steel bar truss building carrier plate extends to within the girder steel top flange width, go up the chord reinforcing bar with girder steel top flange plate carries out welded fastening.
3. The composite girder using prefabricated steel reinforced concrete according to claim 1 or 2, wherein: and support connecting pieces are arranged on two sides of the upper flange plate of the steel beam, the upper ends of the support connecting pieces are supported below the upper chord steel bars, and the lower ends of the support connecting pieces are supported on the precast concrete.
4. The composite girder using precast steel reinforced concrete according to claim 3, wherein: the bottom plate of the steel bar truss floor support plate is a detachable or non-detachable bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272125.6U CN209891550U (en) | 2018-12-29 | 2018-12-29 | Combined beam using prefabricated steel reinforced concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272125.6U CN209891550U (en) | 2018-12-29 | 2018-12-29 | Combined beam using prefabricated steel reinforced concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209891550U true CN209891550U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822272125.6U Active CN209891550U (en) | 2018-12-29 | 2018-12-29 | Combined beam using prefabricated steel reinforced concrete |
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|---|---|
| CN (1) | CN209891550U (en) |
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- 2018-12-29 CN CN201822272125.6U patent/CN209891550U/en active Active
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