CN218843350U - Beam support and prefabricated floor structure - Google Patents
Beam support and prefabricated floor structure Download PDFInfo
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- CN218843350U CN218843350U CN202221947714.XU CN202221947714U CN218843350U CN 218843350 U CN218843350 U CN 218843350U CN 202221947714 U CN202221947714 U CN 202221947714U CN 218843350 U CN218843350 U CN 218843350U
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Abstract
A beam support and precast floor slab structure comprises a precast floor slab, a support and post-cast materials; the prefabricated floor slab comprises prefabricated floor slab concrete and prefabricated floor slab reinforcing steel bars; the support comprises a precast beam and a beam connecting piece; the end part of the precast floor slab is arranged on or close to the precast beam; transverse steel bars are arranged above the precast beams; the transverse steel bars comprise lower transverse steel bars and upper transverse steel bars; the transverse steel bars above the beams are connected with the prefabricated floor slab; one end of the beam connecting piece is fixedly connected with the beam in an anchoring, welding or bolting mode; the top surface of the beam connecting piece is higher than the top surface of the transverse steel bar at the lower part; and post-pouring materials are poured above the beams.
Description
Technical Field
The utility model relates to a precast concrete structure field particularly relates to a roof beam support and precast floor slab structure.
Background
Prefabricated floor slabs are an important component of an assembled building structure, and need to transmit vertical loads to beams or walls and horizontal seismic and wind loads to a lateral force resisting system. The prefabricated floor slab accords with the industrialized development direction of buildings promoted in China and is a specific implementation mode of a green sustainable development idea. The combination of precast concrete floor slabs and steel beams is encountered in construction.
Traditional precast floor is prestressing force hollow floor, and when only unilateral precast floor was connected with the girder steel, precast floor's tip was put on the girder steel. This technique has the following problems: 1. the earthquake force is difficult to effectively transmit under the action of the earthquake and is easy to fall off; 2. under the action of vertical load, the steel beam often has larger eccentric load, so that the precast floor slab generates larger torque to the steel beam, and the steel beam is possibly subjected to torsional damage; 3. there is the gap easily between girder steel top surface and the precast floor slab, should corrode.
The invention provides a variable-rigidity precast floor slab technology, which can effectively improve the integrity between floor slabs and transmit the integral earthquake force, but a solution for connecting steel beams on one side of a variable-rigidity precast floor slab is not provided yet.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a beam support and prefabricated floor structure, this connection structure attaches technical measure such as muscle and node post-cast through set up at beam slab node, can effectively promote whole shock resistance and girder steel and prefabricated floor's connection performance, reduces the moment of torsion to the girder steel under the dead weight effect, can exempt from the die block moreover or few die block, improves construction quality and construction speed. The utility model relates to a connection structure has advantages such as mechanical properties is good, simple manufacture, construction are quick, green.
The utility model discloses a realize like this:
the utility model firstly provides a beam support and a precast floor slab structure, which comprises a precast floor slab, a support and post-cast materials; the prefabricated floor slab comprises prefabricated floor slab concrete and prefabricated floor slab reinforcing steel bars; the support comprises a beam and a beam connecting piece; the end of the precast floor slab is on or adjacent to the beam; a transverse steel bar is arranged above the beam; the transverse steel bars comprise lower transverse steel bars and upper transverse steel bars; the transverse steel bars above the beams are connected with the prefabricated floor slab; one end of the beam connecting piece is fixedly connected with the beam in an anchoring, welding or bolting mode; the top surface of the beam connecting piece is higher than the top surface of the lower transverse steel bar; and post-cast materials are poured above the beams.
Preferably, the post-cast material is cast-in-place concrete, cement mortar or grouting material; and the post-cast material covers the transverse steel bars and the beam connecting pieces to form a post-cast block connecting beam and a prefabricated floor slab.
Preferably, the transverse steel bars are additional steel bars and are connected with the steel bars of the prefabricated floor slab into a whole in a lap joint, welding or sleeve connection mode.
Preferably, the transverse steel bars are formed by extending the extending end parts of the prefabricated floor steel bars.
Preferably, the lower transverse bar of the transverse bars forms a bar ring above the beam; and the beam connecting piece is inserted into the reinforcing steel bar ring to connect the precast beam and the precast floor slab.
Preferably, there are longitudinal reinforcements above the beam along the beam axis direction; the longitudinal steel bars above the beam and the transverse steel bars above the beam form a steel bar cage; and the post-cast material wraps the reinforcement cage.
Preferably, the beam connecting piece is a stud, a steel bar, profile steel or a welded steel member; the beam connecting pieces are arranged at intervals along the length direction of the beam; the beam connector is located in the middle region of the beam cross section to reduce floor-to-beam torque.
Preferably, the beam connector has a flexible covering; the flexible covering wraps part or all of the beam connecting pieces, so that trace relative deformation between the floor slab and the beam can be realized, and the torque to the beam is reduced; by flexible cover is meant an item where the elastic modulus of the cover is lower than the elastic modulus of the beam connector, such as plastic, rubber, leather, etc.
Preferably, the prefabricated floor slab is a prefabricated reinforced truss concrete floor slab, and reinforcing steel bars are laid on the prefabricated reinforced truss concrete floor slab; the steel bars of the precast reinforced truss concrete floor slab are lapped with the transverse steel bars above the beam; the steel bars of the prefabricated steel bar truss concrete floor slab extend out of the end part or do not extend out of the end part; concrete is poured above the prefabricated reinforced truss concrete floor slab, and the concrete wraps the reinforcing steel bars laid on the prefabricated reinforced truss concrete floor slab and the transverse reinforcing steel bars above the beam.
Preferably, the precast floor slab is also connected with a wing plate; the wing plates comprise wing plate reinforcing steel bars and wing plate concrete; the top surface of the wing plate concrete is not higher than the top surface of the longitudinal steel bar at the upper part of the prefabricated floor slab, and the wing plate concrete and the prefabricated floor slab concrete are cast together into a whole; the wing plate reinforcing steel bars are provided with reinforcing mesh and comprise wing plate transverse reinforcing steel bars and wing plate longitudinal reinforcing steel bars; the transverse steel bars or the longitudinal steel bars at the lower parts of the wing plates and the steel bars at the lower parts of the precast floor slabs are connected into a whole or formed by extending the steel bars at the lower parts of the precast floor slabs.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
1. the utility model discloses a roof beam support and prefabricated floor structure, support tip set up attaches the muscle, and the simple structure is convenient for construct and preparation.
2. The utility model discloses a roof beam support and precast floor slab structure, roof beam pass through the roof beam connecting piece and are connected with precast concrete floor slab, can effectively transmit horizontal seismic force, prevent to drop.
3. The utility model discloses a roof beam support and prefabricated floor structure, roof beam connecting piece are located the roof beam middle part, can effectively reduce the moment of torsion to the roof beam.
4. The utility model discloses a roof beam support and precast floor slab structure, roof beam connecting piece have flexible cover, allow to take place relative micro-deformation between floor and the roof beam, can effectively reduce the moment of torsion to the roof beam.
5. The utility model discloses a material is watered after setting up between beam support and the precast floor slab structure, precast floor slab and the roof beam, can effectively promote the anticorrosive fire behavior of upper limb of beam steel structure part.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic cross-sectional view of a beam support in connection with a full precast floor slab;
FIG. 2 is a schematic cross-sectional view of a beam support coupled to a precast reinforced concrete truss floor;
figure 3 is a schematic plan view of a prefabricated floor slab.
Fig. 4 is a plan view of the lower transverse reinforcement bars forming the reinforcement rings.
Reference numerals are as follows: 1-precast floor slab concrete, 2-precast floor slab reinforcing steel bars, 2.1-floor slab transverse reinforcing steel bars, 2.2-floor slab longitudinal reinforcing steel bars, 3-post-cast material, 4-beam, 5-transverse reinforcing steel bars, 5.1-upper transverse reinforcing steel bars, 5.2-lower transverse reinforcing steel bars, 6-longitudinal reinforcing steel bars, 7-beam connecting pieces and 9-supports.
The specific implementation mode is as follows:
in order to better understand the objects, technical solutions and functions of the present invention, the present invention will be described in further detail with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the description of the present invention, it is to be understood that the terms "comprises," "comprising," "consists of," "8230," "consisting of," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed if necessary or inherent to such product, apparatus, process or method. Without further limitation, an element defined by the phrases "comprising/including 8230; \8230;", "by 8230; \8230; constituting" does not exclude the presence of additional like elements in a product, device, process, or method that comprises the element.
In the present application, the term "fixedly connected" is to be understood in a broad sense, unless expressly stated or limited otherwise, for example: can be a socket connection, can be a lap joint, can be a welding connection, can be a bolt connection, and can be a combination of the above connections; the terms "mounted," "connected," and the like are to be construed broadly and may, for example, be fixedly connected or detachably connected or integrated; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated internally or in an interaction relationship; the term "through-length reinforcement" means that the reinforcement is continuous without breaking, or the reinforcement is broken but the fixed connection between the reinforcements is broken. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship illustrated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device, component, or structure so referred to must have a particular orientation, be constructed or operated in a particular orientation, and should not be considered as limiting the invention.
The following detailed description of the preferred embodiments will be made with reference to the accompanying drawings.
As shown in fig. 1-3, the utility model firstly provides a beam support and precast floor slab structure, which comprises a precast floor slab, a support 9 and a post-cast material 3; the prefabricated floor slab comprises prefabricated floor slab concrete 1 and prefabricated floor slab reinforcing steel bars 2; the support 9 comprises a beam 4 and a beam connecting piece 7; the beam 4 is a steel beam, a steel-concrete combined beam or a precast concrete beam; the end of the precast floor slab is on or adjacent to the beam 4; the post-cast material 3 is cast-in-place concrete, cement mortar or grouting material; a transverse steel bar 5 is arranged above the beam 4; the transverse steel bars 5 comprise lower transverse steel bars 5.2 and upper transverse steel bars 5.1; the transverse steel bars 5 above the beams 4 are connected with the prefabricated floor slab; one end of the beam connecting piece 7 is fixedly connected with the beam 4 in a mode of anchoring, welding or bolting; the top surface of the beam connecting piece 7 is higher than the top surface of the lower transverse steel bar 5.2; post-cast 3 is poured above the beam 4, and the post-cast 3 covers the transverse steel bars 5 and the beam connecting piece 7 to form a cast-in-place block connecting beam 4 and a prefabricated floor slab.
Preferably, the post-cast material 3 is cast-in-place concrete, cement mortar or grouting material; and the post-cast material 3 covers the transverse steel bars 5 and the beam connecting pieces 7 to form a post-cast block connecting beam 4 and a prefabricated floor slab.
Preferably, the prefabricated floor slab is a full prefabricated floor slab, a steel bar truss prefabricated concrete floor slab or a variable-rigidity prefabricated floor slab with a wing plate.
Preferably, the prefabricated floor slab steel bars comprise an upper layer steel bar mesh and a lower layer steel bar mesh and comprise floor slab transverse steel bars 2. 1. And longitudinal reinforcing steel bars 2.2 of the floor slab; the transverse reinforcing steel bars 2.1 of the floor slab and the longitudinal reinforcing steel bars 2.1 of the floor slab are orthogonal or oblique.
Preferably, the transverse steel bars 5 are additional steel bars and are connected with the prefabricated floor steel bars 2 into a whole in a lap joint, welding or sleeve connection mode.
Preferably, the transverse reinforcement 5 is formed by extending the protruding end of the prefabricated floor reinforcement 2.
As shown in fig. 4, the lower transverse reinforcement 5.2 of said transverse reinforcement 5 preferably forms a reinforcement ring above the beam; the beam connecting piece 7 is inserted into the reinforcing steel bar ring to connect the precast beam 4 and the precast floor slab; the reinforcing steel bar ring is U-shaped, circular and the like; the clear distance of the reinforcing rings is larger than the outer diameter of the beam connector, and the collapse resistance can be improved under extreme conditions.
Preferably, there are longitudinal reinforcements 6 above the beam 4 in the direction of the beam axis; the longitudinal steel bars 6 above the beam 4 and the transverse steel bars 5 above the beam form a steel bar cage; and the post-cast material 3 wraps the reinforcement cage and forms a superposed beam with the beam.
Preferably, the beam connecting member 7 is a stud, a steel bar, a section steel or a welded steel member; the beam connecting pieces 7 are arranged at intervals along the length direction of the beam, and the interval distance is not less than 40mm; the beam connector 7 is located in the central region of the cross-section of the beam 4 to reduce floor-to-beam torsion.
Further, the beam connecting member 7 has a flexible covering; the flexible covering wraps part or all of the beam connecting pieces 7, so that trace relative deformation between the floor slabs and the beams can be realized, and the torque on the beams is reduced; by flexible cover is meant an item where the elastic modulus of the cover is lower than the elastic modulus of the beam connector, such as plastic, rubber, leather, etc.
Preferably, the prefabricated floor slab is a prefabricated reinforced truss concrete floor slab, and reinforcing steel bars are laid on the prefabricated reinforced truss concrete floor slab; the steel bars of the precast reinforced truss concrete floor are lapped with the transverse steel bars 5 above the beam 4; the steel bars of the prefabricated steel bar truss concrete floor slab extend out of the end part or do not extend out of the end part; concrete is poured above the prefabricated reinforced truss concrete floor slab, and the concrete wraps the reinforcing steel bars paved on the prefabricated reinforced truss concrete floor slab and the transverse reinforcing steel bars 5 above the beam 4.
Furthermore, the prefabricated floor slab is also connected with a wing plate; the wing plates comprise wing plate reinforcing steel bars and wing plate concrete; the top surface of the wing plate concrete is not higher than the top surface of the longitudinal steel bar at the upper part of the prefabricated floor slab, and the wing plate concrete and the prefabricated floor slab concrete 1 are cast together into a whole; the wing plate reinforcing steel bars are provided with reinforcing mesh and comprise wing plate transverse reinforcing steel bars and wing plate longitudinal reinforcing steel bars; and the transverse steel bars or the longitudinal steel bars at the lower parts of the wing plates and the steel bars at the lower parts of the precast floor slabs are connected into a whole or formed by extending the steel bars at the lower parts of the precast floor slabs.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any modifications, equivalent replacements, and improvements made by those skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention.
Claims (10)
1. The utility model provides a roof beam support and precast floor slab structure, waters material (3) after including precast floor slab, support (9), its characterized in that: the prefabricated floor slab comprises prefabricated floor slab concrete (1) and prefabricated floor slab reinforcing steel bars (2); the support (9) comprises a beam (4) and a beam connecting piece (7); the end of the precast floor slab is on or adjacent to the beam (4); a transverse steel bar (5) is arranged above the beam (4); the transverse steel bars (5) are provided with lower transverse steel bars (5.2) and upper transverse steel bars (5.1); the transverse steel bars (5) above the beams (4) are connected with the prefabricated floor slab; one end of the beam connecting piece (7) is fixedly connected with the beam (4) in an anchoring, welding or bolting mode; the top surface of the beam connecting piece (7) is higher than the top surface of the lower transverse steel bar (5.2); and post-cast materials (3) are poured above the beam (4).
2. The beam-support and precast floor structure of claim 1, wherein: the post-cast material (3) is cast-in-place concrete, cement mortar or grouting material; and the post-cast material (3) covers the transverse steel bars (5) and the beam connecting piece (7) to form a post-cast block connecting beam (4) and a prefabricated floor slab.
3. The beam-support and precast floor structure of claim 1, wherein: the transverse steel bars (5) are additional steel bars and are connected with the prefabricated floor slab steel bars (2) into a whole in a lap joint, welding or sleeve connection mode.
4. The beam-support and precast floor structure of claim 1, wherein: the transverse steel bars (5) are formed by extending the extending end parts of the prefabricated floor slab steel bars (2).
5. A beam support and precast floor slab structure according to any one of claims 3 and 4, wherein: the lower transverse steel bar (5.2) of the transverse steel bar (5) forms a steel bar ring above the beam; and the beam connecting piece (7) is inserted into the reinforcing steel bar ring, the connecting beam (4) and the prefabricated floor slab.
6. The beam-support and precast floor structure of claim 1, wherein: longitudinal steel bars (6) are arranged above the beam (4) along the axial direction of the beam; the longitudinal steel bars (6) above the beam (4) and the transverse steel bars (5) above the beam form a steel reinforcement cage; and the post-cast material (3) wraps the reinforcement cage.
7. The beam-support and precast floor slab structure of claim 1, wherein: the beam connecting piece (7) is a stud, a steel bar, profile steel or a welded steel component; the beam connecting pieces (7) are arranged at intervals along the length direction of the beam; the beam connection (7) is located in the middle region of the cross section of the beam (4).
8. The beam-support and precast floor structure of claim 1, wherein: the beam connecting piece (7) is provided with a flexible covering; the flexible covering wraps around part or all of the beam connectors (7).
9. The beam-support and precast floor slab structure of claim 1, wherein: the prefabricated floor slab is a prefabricated reinforced truss concrete floor slab, and reinforcing steel bars are laid on the prefabricated reinforced truss concrete floor slab; the steel bars of the precast reinforced truss concrete floor slab are lapped with the transverse steel bars (5) above the beam (4); concrete is poured above the prefabricated reinforced truss concrete floor slab, and the concrete wraps the reinforcing steel bars paved on the prefabricated reinforced truss concrete floor slab and the transverse reinforcing steel bars (5) above the beam (4).
10. The beam-support and precast floor structure of claim 1, wherein: the prefabricated floor slab is also connected with a wing plate; the wing plates comprise wing plate reinforcing steel bars and wing plate concrete; the top surface of the wing plate concrete is not higher than the top surface of the longitudinal steel bar at the upper part of the prefabricated floor slab, and the wing plate concrete and the prefabricated floor slab concrete (1) are poured together into a whole; the wing plate steel bars are provided with steel bar meshes and comprise wing plate transverse steel bars and wing plate longitudinal steel bars; the transverse steel bars or the longitudinal steel bars at the lower parts of the wing plates and the steel bars at the lower parts of the precast floor slabs are connected into a whole or formed by extending the steel bars at the lower parts of the precast floor slabs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221947714.XU CN218843350U (en) | 2022-07-26 | 2022-07-26 | Beam support and prefabricated floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221947714.XU CN218843350U (en) | 2022-07-26 | 2022-07-26 | Beam support and prefabricated floor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218843350U true CN218843350U (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221947714.XU Active CN218843350U (en) | 2022-07-26 | 2022-07-26 | Beam support and prefabricated floor structure |
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| Country | Link |
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| CN (1) | CN218843350U (en) |
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- 2022-07-26 CN CN202221947714.XU patent/CN218843350U/en active Active
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