CN218843349U - Support structure of prefabricated floor slab - Google Patents
Support structure of prefabricated floor slab Download PDFInfo
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- CN218843349U CN218843349U CN202221947711.6U CN202221947711U CN218843349U CN 218843349 U CN218843349 U CN 218843349U CN 202221947711 U CN202221947711 U CN 202221947711U CN 218843349 U CN218843349 U CN 218843349U
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Abstract
A support structure of a prefabricated floor slab comprises a support beam, a beam connecting piece, the prefabricated floor slab and a post-cast block; the prefabricated floor slab comprises prefabricated floor slab concrete and prefabricated floor slab steel bars; the prefabricated floor slab reinforcing steel bars are provided with an upper layer reinforcing steel bar net and a lower layer reinforcing steel bar net and comprise floor slab transverse reinforcing steel bars and floor slab longitudinal reinforcing steel bars; the support beam is a steel beam, a prefabricated steel-concrete combined beam or a prefabricated concrete beam; the post-cast block is provided with post-cast block steel bars and post-cast block concrete; one end of the beam connecting piece is fixedly connected with the support beam in an anchoring, welding or bolting mode; the other end of the beam connecting piece is inserted into the post-pouring block, and the post-pouring block and the support beam are connected into a whole; the end part of the precast floor slab is arranged on the support beam or close to the support beam; the end parts of the prefabricated floor slab reinforcing steel bars extend out of the side surfaces of the prefabricated floor slabs and are connected with the post-cast block transverse steel bars; and the post-cast block concrete wraps the post-cast block reinforcing steel bars to form reinforced concrete blocks, and the support beam and the prefabricated floor slab are connected into a whole.
Description
Technical Field
The utility model relates to a precast concrete structure field particularly relates to a support structure of precast floor slab.
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 concept. The combination of precast concrete floor slabs and steel beams is encountered in the 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; 2. the falling is easy; 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 support structure of prefabricated floor, the dark reinforced concrete roof beam is done to this joint construction, is connected for wholly through floor connecting piece and girder steel, 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:
a support structure of a precast floor slab comprises a support beam, a beam connecting piece, the precast floor slab and a post-cast block; the prefabricated floor slab comprises prefabricated floor slab concrete and prefabricated floor slab reinforcing steel bars; the prefabricated floor slab reinforcing steel bars are provided with an upper layer reinforcing steel bar net and a lower layer reinforcing steel bar net and comprise floor slab transverse reinforcing steel bars and floor slab longitudinal reinforcing steel bars; the support beam is a steel beam, a prefabricated steel-concrete combined beam or a prefabricated concrete beam; the post-cast block is provided with post-cast block steel bars and post-cast block concrete; one end of the beam connecting piece is fixedly connected with the support beam in an anchoring, welding or bolting mode; the other end of the beam connecting piece is inserted into the post-pouring block, and the post-pouring block and the support beam are connected into a whole; the end part of the precast floor slab is arranged on the support beam or close to the support beam; the end parts of the prefabricated floor slab reinforcing steel bars extend out of the side surfaces of the prefabricated floor slabs and are connected with the post-cast block transverse steel bars; and the post-cast block concrete wraps the post-cast block reinforcing steel bars to form reinforced concrete blocks, and the support beam and the prefabricated floor slab are connected into a whole.
Preferably, the post-cast block steel bars comprise post-cast block transverse steel bars and post-cast block longitudinal steel bars; the post-pouring block is arranged above the support beam, the post-pouring block is strip-shaped, and the axis of the post-pouring block is parallel to the axis of the support beam; the post-cast block longitudinal steel bars and the post-cast block transverse steel bars form a post-cast block steel bar cage; the post-cast block transverse steel bar is a closed stirrup and/or a tie bar; and the post-cast block transverse steel bars are connected with the prefabricated floor slab steel bars in a lap joint, welding or sleeve connection mode.
Preferably, the transverse steel bars of the post-cast block are formed by extending the extending end parts of the steel bars of the prefabricated floor slab.
Preferably, the beam connecting piece is a stud, a steel bar, profile steel or a welded steel member; the beam connectors are spaced apart along the length of the beam.
Preferably, the beam connection is located in a central region of the cross section of the carrier beam.
Preferably, the longitudinal steel bars of the post-cast block are fixedly connected with the vertical members at the end parts of the support beams in the mode of anchoring, sleeve connection or welding; the vertical member is a column or a wall.
Preferably, the width of the post-cast block is larger than the width size of the support beam, and the post-cast block and the support beam form a T-shaped beam support together.
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.
Preferably, wing plates are arranged on two sides of the support beam; a support additional steel bar is arranged above the support beam; the support additional steel bars comprise transverse additional steel bars and longitudinal additional steel bars; the transverse additional steel bar is vertically or obliquely intersected with the axis of the post-pouring block and is connected with the steel bar of the wing plate in a lap joint or welding mode.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
1. the utility model discloses a support structure of prefabricated floor, the hidden steel reinforced concrete roof beam is done at the support top, is connected as whole through floor connecting piece and girder steel, and simple structure is convenient for construct and preparation.
2. The utility model discloses a support structure of prefabricated floor, dark reinforced concrete roof beam, floor connecting piece are done through the top to the roof beam and are connected with the precast concrete floor, can effectively transmit horizontal seismic force, prevent to drop.
3. The utility model discloses a support structure of prefabricated floor, floor 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 support structure of precast floor slab, floor connection spare 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 support structure of prefabricated floor sets up the hidden steel reinforced concrete roof beam between prefabricated floor 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 and full precast floor slab joint construction;
FIG. 2 is a schematic plan view of a beam support and full precast floor slab connection configuration;
FIG. 3 is a schematic cross-sectional view of a beam support and full precast floor slab connection (post-cast block rebar formed by extending precast floor slab rebar);
FIG. 4 is a schematic plan view of a connection structure of a beam support and a prefabricated steel reinforced truss concrete floor;
fig. 5 is a schematic cross-sectional view of a beam support and a full precast floor slab connection construction with a wing plate.
Reference numerals: 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 blocks, 3.1-post-cast block reinforcing steel bars, 3.1.1-post-cast block transverse reinforcing steel bars, 3.1.2-post-cast block longitudinal reinforcing steel bars, 3.2-post-cast block concrete, 4-support beams and 6-beam connecting pieces.
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 … …," 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 or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …", "consisting of … …" does not exclude the presence of additional like elements in a product, apparatus, process or method that includes the element.
In the present application, unless expressly stated or limited otherwise, the term "fixedly connected" is to be understood in a broad sense, for example: the connection can be a sleeve connection, a lap joint, a welding connection, a bolt connection or a combination of the above connections; the terms "mounted," "connected," and the like are to be construed broadly and may include, for example, fixed connections, detachable connections, or a combination thereof; the two components can be directly connected or indirectly connected through an intermediate medium, and can be communicated with each other inside the two components or the interaction relationship of the two components; 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. 1-2, a support structure of a precast floor slab comprises a support beam 4, a beam connecting member 6, a precast floor slab and a post-cast block 3; the prefabricated floor slab comprises prefabricated floor slab concrete 1 and prefabricated floor slab reinforcing steel bars 2; the prefabricated floor slab reinforcing steel bars 2 are provided with an upper layer reinforcing steel bar net and a lower layer reinforcing steel bar net and comprise floor slab transverse reinforcing steel bars 2.1 and floor slab longitudinal reinforcing steel bars 2.2; the support beam 4 is a steel beam, a prefabricated steel-concrete combined beam or a prefabricated concrete beam; the support beam can be a frame beam, a non-frame beam or a connecting beam; the post-cast block 3 is provided with post-cast block steel bars 3.1 and post-cast block concrete 3.2; one end of the beam connecting piece 6 is fixedly connected with the support beam 4 in a mode of anchoring, welding or bolting; the other end of the beam connecting piece 6 is inserted into the post-pouring block 3, and the post-pouring block 3 and the support beam 4 are connected into a whole; the end part of the precast floor slab is arranged on the support beam 4 or close to the support beam 4; the end part of the precast floor slab reinforcing steel bar 2 extends out of the side surface of the precast floor slab and is connected with a post-cast block transverse reinforcing steel bar 3.1.1; the post-cast block concrete 3.2 wraps the post-cast block steel bars 3.1 to form reinforced concrete blocks, and the support beam 4 and the precast floor slab are connected into a whole.
Preferably, the post-cast block steel bars 3.1 comprise post-cast block transverse steel bars 3.1.1 and post-cast block longitudinal steel bars 3.1.2; the post-pouring block 3 is arranged above the support beam 4, the post-pouring block 3 is strip-shaped, and the axis of the post-pouring block 3 is parallel to the axis of the support beam 4; the post-cast block longitudinal steel bar 3.1.2 and the post-cast block transverse steel bar 3.1.1 form a post-cast block steel bar cage; the post-cast block transverse steel bar 3.1.1 is a closed stirrup and/or a tie bar; the post-cast block transverse steel bar 3.1.1 is connected with the precast floor slab steel bar 2 in a lap joint, welding or sleeve connection mode.
Preferably, as shown in fig. 3-4, the post-cast block transverse reinforcement 3.1.1 is formed by extending the reinforcement protruding end of the precast floor slab.
Preferably, the beam connecting piece 6 is a stud, a steel bar, a section steel or a welded steel member; the beam connectors 6 are spaced apart along the length of the beam.
Preferably, the beam connection 6 is located in the middle region of the cross section of the carrier beam 4.
Further, the longitudinal steel bar 3.1.2 of the post-cast block is fixedly connected with a vertical member at the end part of the support beam 4 in the mode of anchoring, sleeve connection or welding; the vertical member is a column or a wall.
Preferably, the width of the post-cast block 3 is larger than the width of the support beam 4, and the post-cast block and the support beam 4 form a T-shaped beam support together.
Further, as shown in fig. 5, 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 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.
Preferably, wing plates are arranged on two sides of the support beam 4; the steel bars of the wing plates are exposed or partially exposed, and the steel bars at the lower parts of the wing plates are inserted into the post-pouring blocks 3; a support additional steel bar is arranged above the support beam 4; the support additional steel bars comprise transverse additional steel bars and longitudinal additional steel bars; the transverse additional steel bars are vertically or obliquely intersected with the axis of the post-pouring block 3 and connected with the steel bars of the wing plates in a lap joint or welding mode.
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 (9)
1. The utility model provides a support structure of precast floor slab, including support roof beam (4), roof beam connecting piece (6), precast floor slab and post-cast block (3), its characterized in that: the prefabricated floor slab comprises prefabricated floor slab concrete (1) and prefabricated floor slab reinforcing steel bars (2); the prefabricated floor slab reinforcing steel bars (2) are provided with an upper layer reinforcing mesh and a lower layer reinforcing mesh and comprise floor slab transverse reinforcing steel bars (2.1) and floor slab longitudinal reinforcing steel bars (2.2); the support beam (4) is a steel beam, a prefabricated steel-concrete combined beam or a prefabricated concrete beam; the post-cast block (3) is provided with post-cast block steel bars (3.1) and post-cast block concrete (3.2); one end of the beam connecting piece (6) is fixedly connected with the support beam (4) in an anchoring, welding or bolting mode; the other end of the beam connecting piece (6) is inserted into the post-pouring block (3), and the post-pouring block (3) and the support beam (4) are connected into a whole; the end part of the precast floor slab is arranged on the support beam (4) or is close to the support beam (4); the end part of the precast floor slab reinforcing steel bar (2) extends out of the side surface of the precast floor slab and is connected with a post-cast block transverse reinforcing steel bar (3.1.1); and the post-cast block concrete (3.2) wraps the post-cast block steel bars (3.1) to form reinforced concrete blocks, and the support beam (4) and the prefabricated floor slab are connected into a whole.
2. The precast floor slab support structure according to claim 1, wherein: the post-cast block steel bars (3.1) comprise post-cast block transverse steel bars (3.1.1) and post-cast block longitudinal steel bars (3.1.2); the post-pouring block (3) is arranged above the support beam (4), the post-pouring block (3) is strip-shaped, and the axis of the post-pouring block (3) is parallel to the axis of the support beam (4); the post-cast block longitudinal steel bars (3.1.2) and the post-cast block transverse steel bars (3.1.1) form a post-cast block steel bar cage; the post-cast block transverse steel bar (3.1.1) is a closed stirrup and/or a tie bar; the post-cast block transverse steel bar (3.1.1) is connected with the precast floor slab steel bar (2) in a lap joint, welding or sleeve connection mode.
3. The precast floor slab support structure according to claim 1, wherein: the post-cast block transverse steel bar (3.1.1) is formed by extending the extending end part of the steel bar of the prefabricated floor slab.
4. The precast floor slab support structure according to claim 1, wherein: the beam connecting piece (6) is a stud, a steel bar, profile steel or a welded steel component; the beam connectors (6) are arranged at intervals along the length direction of the beam.
5. The precast floor slab support structure according to claim 4, wherein: the beam connection (6) is located in the middle region of the cross section of the carrier beam (4).
6. The precast floor slab support structure according to claim 2, wherein: the post-cast block longitudinal steel bar (3.1.2) is fixedly connected with a vertical member at the end part of the support beam (4) in the mode of anchoring, sleeve connection or welding; the vertical member is a column or a wall.
7. The precast floor slab support structure according to claim 1, wherein: the width of the post-cast block (3) is larger than the width of the support beam (4), and the post-cast block and the support beam (4) form a T-shaped beam support together.
8. The precast floor slab support structure according to 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 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.
9. The precast floor slab support structure of claim 8, wherein: wing plates are arranged on two sides of the support beam (4); additional support steel bars are arranged above the support beam (4); the support additional steel bars comprise transverse additional steel bars and longitudinal additional steel bars; the transverse additional steel bars are vertically or obliquely intersected with the axis of the post-pouring block (3) and connected with the steel bars of the wing plates in a lap joint or welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221947711.6U CN218843349U (en) | 2022-07-26 | 2022-07-26 | Support structure of prefabricated floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221947711.6U CN218843349U (en) | 2022-07-26 | 2022-07-26 | Support structure of prefabricated floor slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218843349U true CN218843349U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221947711.6U Active CN218843349U (en) | 2022-07-26 | 2022-07-26 | Support structure of prefabricated floor slab |
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| Country | Link |
|---|---|
| CN (1) | CN218843349U (en) |
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- 2022-07-26 CN CN202221947711.6U patent/CN218843349U/en active Active
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Addressee: Wang Yunxia Document name: Notice of Handling Registration Procedures |
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| CP02 | Change in the address of a patent holder |
Address after: 622, Block N, Guangyao Oriental Plaza, No. 18 Yangfangdian Road, Haidian District, Beijing, 100073 Patentee after: Yao Panfeng Address before: Room 203, Building 13, Huayuan Xindi Community, Liuliqiao Bridge, Fengtai District, Beijing 100073 Patentee before: Yao Panfeng |
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