CN209924269U - Combined beam using aerated concrete blocks - Google Patents
Combined beam using aerated concrete blocks Download PDFInfo
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- CN209924269U CN209924269U CN201822272148.7U CN201822272148U CN209924269U CN 209924269 U CN209924269 U CN 209924269U CN 201822272148 U CN201822272148 U CN 201822272148U CN 209924269 U CN209924269 U CN 209924269U
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Abstract
The composite beam using the aerated concrete blocks comprises a steel bar truss floor bearing plate, a steel beam, the aerated concrete blocks, bolt connecting pieces and concrete, wherein upper chord steel bars of the steel bar truss floor bearing plate are lapped on an upper flange plate of the steel beam and are welded and fixed, the aerated concrete blocks are fixed on two sides of a web plate of the steel beam through the bolt connecting pieces, the aerated concrete blocks are filled in a cavity between a bottom plate of the steel bar truss floor bearing plate and a lower flange plate of the steel beam, and then floor concrete is poured to enable the steel beam and the steel bar truss floor bearing plate to be integrally solidified. 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, reduces the steel quantity, and concrete and girder steel constitute integrated configuration and load simultaneously, have improved the stability and the bearing capacity of girder steel.
Description
Technical Field
The utility model belongs to the technical field of steel construction engineering, concretely relates to aerated concrete block and combination beam that girder steel and steel bar truss building carrier plate are constituteed and construction method thereof.
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 die of a floor support 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
For overcoming above-mentioned prior art's not enough and defect to reach and simplify structural design, accelerate construction speed, reinforced concrete floor, girder steel are connected, improve bearing capacity's purpose, the utility model provides an use aerated concrete block's composite beam.
The utility model discloses a following technical scheme realizes:
the combination beam using the aerated concrete blocks is characterized in that: the steel beam web plate is prefabricated with holes so that the bolt connecting piece for fixing the aerated concrete block can penetrate through the holes to fix the aerated concrete block, the top of the steel beam is lifted upwards, an upper chord steel bar of the steel beam truss floor support plate is lapped on an upper flange plate of the steel beam, the upper chord steel bar is welded and fixed with the upper flange plate, a steel beam web plate is provided with a steel bar penetrating hole at a position corresponding to a lower chord steel bar of the steel beam truss floor support plate, and a connecting steel bar is arranged at the steel beam web plate steel bar penetrating hole to be bound and lapped with the lower chord steel bar; the aerated concrete blocks are fixed on two sides of a web plate of the steel beam through bolt connecting pieces, the filling height of the aerated concrete blocks is equal to the distance between a bottom plate of the steel bar truss floor bearing plate and the inner surface of a lower flange plate of the steel beam, and floor concrete is poured between the steel beam and the steel bar truss floor bearing plate to integrally solidify the steel beam and the steel bar truss floor bearing plate to form the combined beam.
Preferably, a support connecting piece is arranged between the upper chord steel bar and the aerated concrete block, the upper end of the support connecting piece is supported below the upper chord steel bar, and the lower end of the support connecting piece is supported above the aerated concrete block.
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.
Preferably, the end part of the bottom plate of the steel bar truss floor bearing plate is lapped on the aerated concrete block.
Preferably, the bottom plate of steel bar truss floor carrier plate selects detachable or non-detachable type bottom plate according to actual structural design needs.
Preferably, the height of the aerated concrete block is equal to the distance between the inner surface of the lower flange plate of the steel beam and the bottom plate of the steel bar truss floor bearing plate, and the width of the aerated concrete block is not less than the outward net width of the lower flange plate.
The steel bar truss floor bearing plate is not limited to the structural form of the floor bearing plate mentioned in the embodiment, and is suitable for connection design of various steel bar truss floor bearing 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, and the stability and the bearing capacity of the combined steel beam are improved by arranging the aerated concrete blocks in the cavities on the two sides of the web plate of the steel beam, so that the section design requirement on the steel beam is reduced, the design of the vertical stiffening plate is not needed, and the use amount of steel is reduced to a certain extent;
4. the structural design is simplified, the industrial prefabrication and construction efficiency is improved, studs do not need to be welded on the flange plates on the steel beams, and structural steel bars do not need to be arranged in the connecting areas of the end parts. The steel beam and the upper chord steel bar of the steel bar truss floor support plate are welded and fixed, and integral consolidation is realized by pouring concrete;
5. the fireproof and anticorrosion design performance of the steel beam is improved, the steel beam is partially moved up into the floor slab, concrete is poured into cavities on two sides of a web plate of the steel beam, the steel beam is protected in the aspects of fireproof and anticorrosion, and only the lower flange plate exposed out of the steel beam needs to be subjected to fireproof and anticorrosion treatment; when the wall body with the width equal to that of the beam is designed below the steel beam, the steel beam is completely built in, fireproof and anticorrosive treatment is not needed, and the cost is reduced.
Drawings
FIG. 1 is a schematic structural section of the present invention;
fig. 2 is a sectional view taken along the direction a-a of fig. 1, which is a schematic sectional view illustrating a structure of a steel bar truss floor deck according to an embodiment of the present invention;
fig. 3 is a sectional view taken along the direction B-B in fig. 1, which shows a schematic sectional view of an end structure of a steel bar truss floor deck according to an embodiment of the present invention;
fig. 4 is a schematic plane structure diagram of a connection structure of the end part of the steel bar truss floor support plate and the steel combination beam according to the embodiment 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-aerated concrete block, 1-4-bolt connector, 1-5-bottom plate, 1-6-support connector, 1-7-lower chord steel bar connecting 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; 1-13-bolt connection piece backing plate;
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 in the following with the attached drawings.
With reference to figures 1, 2, 3, 4:
the composite beam using the aerated building blocks comprises steel bar truss floor bearing plates 1-2, steel beams 1-1, aerated concrete building blocks 1-3, bolt connecting pieces 1-4 and concrete; the end structure of the steel bar truss floor support plate 1-2 comprises a bottom die 1-5, support connecting pieces 1-6, web member steel bars 1-10, upper chord steel bars 1-8 and lower chord steel bars 1-9; the steel beam 1-1 is upwards lifted, the upper chord steel bar 1-8 of the steel bar truss floor bearing plate 1-2 is lapped on the upper flange plate 2-1 of the steel beam 1-1, and the upper chord steel bar 1-8 is welded and fixed with the upper flange plate 2-1; the aerated concrete block 1-3 is fixed on two sides of a web plate 2-2 of the steel beam 1-1 through a bolt connecting piece 1-4 penetrating through the web plate 2-2 of the steel beam 1-1, a rib penetrating hole is formed in the web plate 2-2 of the steel beam 1-1 at a position corresponding to a lower chord steel bar 1-9 of the steel bar truss floor bearing plate 1-2, and a connecting steel bar 1-7 is arranged at the rib penetrating hole of the web plate 2-2 of the steel beam 1-1 and is in binding lap joint with the lower chord steel bar 1-9; the filling height of the aerated concrete blocks 1-3 is equal to the distance between the bottom plate 1-5 of the steel bar truss floor bearing plate 1-2 and the inner surface of the lower flange plate 2-3 of the steel beam 1-1, and floor concrete is poured between the steel beam 1-1 and the steel bar truss floor bearing plate 1-2 to integrally solidify the steel beam 1-1 and the steel bar truss floor bearing plate 1-2.
And a support connecting piece is arranged between the upper chord steel bars 1-8 and the aerated concrete blocks 1-3, 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 above the aerated concrete blocks 1-3.
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 end parts of the bottom plates 1-5 are lapped on the aerated concrete blocks 1-3.
The bottom plates 1-5 are detachable or non-detachable according to the actual structural design requirement.
The height of the aerated concrete block 1-3 is equal to the distance between the inner surface of the lower flange plate 2-3 of the steel beam 1-1 and the bottom plate 1-5 of the steel bar truss floor bearing plate 1-2, the width is not less than the outward extending net width of the lower flange plate 2-3, and the aerated concrete block is fixed on the two sides of the web plate 2-2 of the steel beam 1-1 through bolt connecting pieces 1-4.
The web plate 2-2 of the steel beam 1-1 is pre-provided with a hole so that a bolt connecting piece 1-4 for fixing the aerated concrete block 1-3 can penetrate through the hole, and the aerated concrete block 1-3 is fixed.
The construction method of the combination beam using the aerated concrete blocks comprises the following steps:
step 1): prefabricating the steel bar truss floor bearing plate in a factory;
step 2): drilling a steel beam web plate in a factory so as to facilitate the connection of the steel bar and the perforation of the aerated concrete block bolt connecting piece;
step 3): fixing the aerated concrete blocks, wherein the aerated concrete blocks are filled on two sides of the web plate of the steel beam;
step 4): hoisting and positioning the steel combination beam and the steel bar truss floor bearing plate on site;
step 5): 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, overlapping the bottom plate on the aerated concrete block, and binding and overlapping the lower chord steel bar of the steel bar truss floor bearing plate and the connecting steel bar at the steel beam web plate reinforcement penetrating hole;
step 6): and (4) carrying out concrete pouring on the floor on site to realize integral consolidation of the steel composite beam and the floor support plate.
The steel bar truss floor bearing plate is not limited to the structural form of the floor bearing plate mentioned in the embodiment, and is suitable for connection design of various steel bar truss floor bearing 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 (6)
1. The combination beam using the aerated concrete blocks is characterized in that: the steel beam web plate is prefabricated with holes so that the bolt connecting piece for fixing the aerated concrete block can penetrate through the holes to fix the aerated concrete block, the top of the steel beam is lifted upwards, an upper chord steel bar of the steel beam truss floor support plate is lapped on an upper flange plate of the steel beam, the upper chord steel bar is welded and fixed with the upper flange plate, a steel beam web plate is provided with a steel bar penetrating hole at a position corresponding to a lower chord steel bar of the steel beam truss floor support plate, and a connecting steel bar is arranged at the steel beam web plate steel bar penetrating hole to be bound and lapped with the lower chord steel bar; the aerated concrete blocks are fixed on two sides of a web plate of the steel beam through bolt connecting pieces, the filling height of the aerated concrete blocks is equal to the distance between a bottom plate of the steel bar truss floor bearing plate and the inner surface of a lower flange plate of the steel beam, and floor concrete is poured between the steel beam and the steel bar truss floor bearing plate to integrally solidify the steel beam and the steel bar truss floor bearing plate to form the combined beam.
2. The composite beam using an aerated concrete block according to claim 1, wherein: and a support connecting piece is arranged between the upper chord steel bar and the aerated concrete block, the upper end of the support connecting piece is supported below the upper chord steel bar, and the lower end of the support connecting piece is supported above the aerated concrete block.
3. The composite beam using an aerated concrete block according to claim 1 or 2, 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.
4. The composite beam using an aerated concrete block according to claim 3, wherein: the end part of the bottom plate of the steel bar truss floor bearing plate is lapped on the aerated concrete block.
5. The composite beam using an aerated concrete block according to claim 4, wherein: the height of the aerated concrete block is equal to the distance between the inner surface of the lower flange plate of the steel beam and the bottom plate of the steel bar truss floor bearing plate, and the width of the aerated concrete block is not less than the outward net width of the lower flange plate.
6. The composite beam using an aerated concrete block according to claim 5, 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 |
|---|---|---|---|
| CN201822272148.7U CN209924269U (en) | 2018-12-29 | 2018-12-29 | Combined beam using aerated concrete blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822272148.7U CN209924269U (en) | 2018-12-29 | 2018-12-29 | Combined beam using aerated concrete blocks |
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| Publication Number | Publication Date |
|---|---|
| CN209924269U true CN209924269U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822272148.7U Active CN209924269U (en) | 2018-12-29 | 2018-12-29 | Combined beam using aerated concrete blocks |
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|---|---|
| CN (1) | CN209924269U (en) |
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- 2018-12-29 CN CN201822272148.7U patent/CN209924269U/en active Active
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