CN212078398U - Building floor and combined floor system - Google Patents
Building floor and combined floor system Download PDFInfo
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- CN212078398U CN212078398U CN201921740247.1U CN201921740247U CN212078398U CN 212078398 U CN212078398 U CN 212078398U CN 201921740247 U CN201921740247 U CN 201921740247U CN 212078398 U CN212078398 U CN 212078398U
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Abstract
The utility model relates to a building floor technical field specifically is a building floor and combination superstructure, including precast concrete board, precast concrete board's bottom pre-buried has the bottom reinforcing bar, precast concrete board is last still pre-buried have a plurality of with the bottom reinforcing bar is fixed and is located the border reinforcement at precast concrete board border position department, border joint strength is better.
Description
Technical Field
The utility model relates to a building floor technical field specifically is a building floor and composite floor.
Background
In the assembly type building structure system, the floor system occupies an important position, not only bears vertical load, but also plays a role in transmitting horizontal load, and plays a vital role in the integrity of the assembly type building and the shock resistance of the assembly type building. At present, precast concrete floor systems are commonly adopted in assembly type building engineering, and SP hollow plates, double T plates, truss reinforced concrete composite plates and the like are commonly used, have wide application range and can be used for buildings such as schools, markets, plants, warehouses and the like; the double-T plate has larger span and is mainly used for large-space buildings such as industrial plants, markets and the like; the truss reinforced concrete composite slab is mainly used for assembly type civil residential buildings. The truss reinforced concrete composite slab has the following defects: the truss reinforcing steel bars are processed by adopting professional equipment, and the web member reinforcing steel bars only play a mechanical role in construction specialties, so that labor waste and material waste are caused; the unsupported span in the construction stage is small, the unsupported construction is difficult to implement, and a large amount of temporary construction measure cost is wasted; the gluten needs all to be in the on-the-spot ligature, and the equal on-the-spot pouring of integral structure's coincide layer concrete, and construction work load is big now, construction progress is slow, unfavorable implementation green construction. The Chinese patent with the publication number of 101173542A discloses a bidirectional steel-laminated plate concrete composite floor, and relates to a novel large-span floor structure, wherein the bidirectional steel-laminated plate concrete composite floor consists of cross steel beams, precast slabs and post-cast layer concrete, and the cross steel beams are I-shaped section or box section steel beams; the precast slabs are common reinforced concrete slabs or prestressed concrete slabs, are supported on the upper flanges of the crossed steel beams and cover the grids among the steel beams; the post-cast layer concrete is concrete poured above the precast slabs and the steel beams, so that the problems of large in-situ pouring and wet operation amount exist, in addition, the integrity of the structure is not good enough, and the connection capacity of the floor slab boundary is not good enough.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a better building floor of border joint strength.
The above technical purpose of the present invention can be achieved by the following technical solutions: the building floor slab comprises a precast concrete slab, bottom reinforcing steel bars are embedded in the bottom of the precast concrete slab, and a plurality of edge reinforcing parts which are fixed with the bottom reinforcing steel bars and are positioned at the edge of the precast concrete slab are also embedded in the precast concrete slab.
Preferably, the edge reinforcement comprises a bottom reinforcing flat plate embedded in the bottom of the precast concrete slab and a reinforcing longitudinal plate fixedly connected to the bottom reinforcing flat plate and extending upward, and at least a part of the reinforcing longitudinal plate is embedded in the edge part of the precast concrete slab.
As to the utility model discloses an it is preferred, the welding of border reinforcement is in on the bottom reinforcing bar.
Preferably, the bottom surface of the bottom reinforcing plate is exposed to the bottom of the precast concrete slab and is in a coplanar state with the bottom surface portion of the precast concrete slab located around the bottom reinforcing plate.
As to the preferred embodiment of the present invention, the height of the middle top surface of the middle body portion of the precast concrete slab is greater than the height of the low level edge top surface in the edge portion top surface, and the precast concrete slab is located in the middle top surface and the area having the height difference between the low level edge top surfaces is formed in the low level drop groove above the low level edge top surface.
As to the utility model discloses a preferred, strengthen the height of vertical plate top surface and be greater than the height of low level border top surface just is less than the height of middle top surface.
Preferably, at least 90% of the projection of the reinforcing longitudinal plate in the vertical projection plane is located in the projection of the edge part of the precast concrete plate in the vertical projection plane.
The utility model aims at providing a better building floor of wholeness.
The above technical purpose of the present invention can be achieved by the following technical solutions: the combined floor comprises steel beams, wherein the building floor slabs are laid on the steel beams, space spaces are arranged between the adjacent building floor slabs at intervals and are reserved above the crossed steel beam bodies, and cast-in-place concrete capable of filling the low-level fall grooves and the space spaces is poured between the adjacent building floor slabs.
As right the utility model discloses a preferably, cast in situ concrete is located pre-buried welding in the part of interval space has the welding shear connector on the girder steel.
As to the utility model discloses a preferred, the end is strengthened the dull and stereotyped welding and is in on the girder steel.
The utility model has the advantages that: the building floor slab has better structural strength, and the boundary connection capacity is improved;
the floor system has better integrity, only needs to be cast on site at the position of the steel beam and the butt joint of the plates, has less wet operation amount, higher construction efficiency and correspondingly improved safety.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;
fig. 2 is a schematic perspective view of an edge reinforcement in embodiment 1 of the present invention;
fig. 3 is a schematic perspective view of the structure of the cast-in-place concrete according to embodiment 2 of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a cross-sectional view taken along line D-D of FIG. 4;
fig. 6 is a schematic perspective view of the cast-in-place concrete filled in fig. 5.
In the figure, 1, precast concrete plates, 2, bottom steel bars, 3, edge reinforcements, 31, bottom reinforced flat plates, 32, reinforced longitudinal plates, 1a, middle top surfaces, 1b, low-level edge top surfaces, 1c, low-level drop grooves, 4, steel beams, 40, separation spaces, c, cast-in-place concrete, 41 and shear connectors.
Detailed Description
The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.
Example 1, as shown in fig. 1 and 2, a building floor slab, including precast concrete slab 1, which is widely used at present, is a precast concrete precast slab manufactured and formed in a precast yard, and is directly transported to a construction site for installation, so called precast slab, where the precast concrete slab 1 is a precast slab, and the precast concrete slab 1 is formed by concrete casting, and steel bars are originally arranged during casting, as in the prior art, so that the precast concrete slab 1 is also the basic structure of concrete and steel bars, for example, a bottom steel bar 2 is embedded in the bottom of the precast concrete slab 1, but the improvement point of the present invention is that a plurality of edge reinforcements 3 fixed to the bottom steel bar 2 and located at the edge portions of the precast concrete slab 1 are embedded in the precast concrete slab 1, so that the structural strength of the boundary is higher, and when cast concrete in situ, the connection ability on border is better, and present steel-made structure reinforcement can be adopted to border reinforcement 3, and this application provides a further optimized scheme: the edge reinforcement 3 comprises a bottom reinforcement flat plate 31 embedded in the bottom of the precast concrete slab 1 and a reinforcement longitudinal plate 32 fixedly connected to the bottom reinforcement flat plate 31 and extending upwards, the bottom reinforcement flat plate 31 can be a rectangular steel plate, the reinforcement longitudinal plate 32 can also be a rectangular steel plate, the bottom reinforcement flat plate 31 and the reinforcement longitudinal plate 32 can be connected and fixed through welding or integral forming, the plate surface of the reinforcement longitudinal plate 32 is preferably perpendicular to the plate surface of the bottom reinforcement flat plate 31 and parallel to one group of opposite edges of the bottom reinforcement flat plate 31 and is located at a position between the two edges and close to the middle, and an inverted T-shaped structure can be formed. The longitudinal extension direction of the bottom reinforcing flat plate 31 is as uniform as possible as the extension direction of the edge of the precast concrete slab 1.
At least a part of the longitudinal reinforcing plate 32 may be embedded in the edge of the precast concrete slab 1, that is, the longitudinal reinforcing plate 32 is not necessarily embedded in the precast concrete slab 1, and actually, a part of the longitudinal reinforcing plate 32 exposed outside the precast concrete slab 1 is preferable because the structure of the longitudinal reinforcing plate 32 can be utilized by cast-in-place concrete when a floor system is subsequently manufactured and installed.
Further, the edge reinforcement 3 is welded to the bottom reinforcement 2, the bottom reinforcement 2 may be welded to the bottom reinforcement flat plate 31, or may be welded to the reinforcement longitudinal plate 32, or may be welded to the bottom reinforcement flat plate 31 and the reinforcement longitudinal plate 32 at the same time, for example, the bottom reinforcement 2 may be welded to a portion of the bottom reinforcement flat plate 31 fixedly connected to the reinforcement longitudinal plate 32, and further, preferably, in an inverted T-shaped structure formed by the bottom reinforcement flat plate 31 and the reinforcement longitudinal plate 32, a bottom reinforcement 2 is welded to each of right and left right-angled portions of a connection between the bottom reinforcement flat plate 31 and the reinforcement longitudinal plate 32, and both the two bottom reinforcements 2 may be welded to the bottom reinforcement flat plate 31 and the reinforcement longitudinal plate 32.
The bottom surface of the bottom reinforced flat plate 31 is exposed out of the bottom of the precast concrete plate 1 and is coplanar with the bottom surface portion of the precast concrete plate 1 around the bottom reinforced flat plate 31, that is, after the bottom reinforced flat plate 31 is embedded in the bottom of the precast concrete plate 1, the bottom surface of the bottom reinforced flat plate 31 and the bottom surface of the portion of the precast concrete plate 1 where the bottom reinforced flat plate 31 is not embedded form a complete bottom supporting plane, although the coplanar state is a perfect state and allows deviation, but the integrity and the flatness of the whole bottom plane under the condition that the bottom of the precast concrete plate 1 is embedded in the bottom reinforced flat plate 31 are ensured as much as possible, which is greatly helpful for the supporting performance of the whole structure and the structural stability after the precast concrete plate is installed in a floor system.
Specifically, the overall profile of the precast concrete panel 1 is designed in a rectangular shape, but the structure of the upper portion thereof is redesigned: the height of the middle top surface 1a of the middle main body part of the precast concrete plate 1 is greater than the height of the low level edge top surface 1b of the edge part top surface, the precast concrete plate 1 forms a low level drop groove 1c above the low level edge top surface 1b in the area with the height difference between the middle top surface 1a and the low level edge top surface 1b, usually, the top surface of the precast concrete plate 1 is a flat surface with the same height, but in the application, the top surface of the edge part is further optimized to be redesigned, namely, a part of the top surface of the edge part is downwards collapsed for a certain distance, namely, the low level edge top surface 1b, because of the low level drop groove 1c, two step parts are formed at the position, and the design is such that, when in-situ cast floor slab concrete is carried out in the subsequent floor slab installation process, the contact area becomes large and the connection capability of the boundary becomes strong. Furthermore, the height of the top surface of the reinforced longitudinal plate 32 is greater than the height of the low-position edge top surface 1b and less than the height of the middle top surface 1a, that is, a part of the reinforced longitudinal plate 32 in the vertical direction is exposed outside the precast concrete plate 1 beyond the edge part, but the reinforced longitudinal plate can be cast and buried by cast-in-place concrete when the cast-in-place concrete is cast and buried, so that a better reinforcing effect is achieved; preferably, at least 90% of the projection of the longitudinal reinforcing plate 32 in the vertical projection plane is located in the projection of the edge part of the precast concrete slab 1 in the vertical projection plane, and the design is mainly to ensure that the longitudinal reinforcing plate 32 does not exceed the precast concrete slab 1 in the horizontal direction as much as possible, so that the structural stability between the longitudinal reinforcing plate 32 and the precast concrete slab 1 is ensured as much as possible.
The construction floor slab can be manufactured by firstly laying reinforcing steel bars, welding the edge reinforcing parts 3 on the reinforcing steel bars in advance, and then pouring concrete to form the precast concrete slab 1 with a site for follow-up construction.
Example 2, as shown in fig. 3, 4, 5 and 6, a composite floor system, which is applied to the floor system of example 1, includes steel beams 4, the steel beams 4 may adopt the existing crossed steel beam structure, a plurality of the floor systems of example 1 are laid on the steel beams 4, and may be further preferably arranged in a rectangular array, the adjacent floor systems are spaced apart from each other and leave spacing spaces 40, the spacing spaces 40 are located above the beam bodies of the crossed steel beams 4, cast-in-place concrete c capable of being filled into the respective low-level drop grooves 1c and the spacing spaces 40 is poured between the adjacent floor systems, the spacing spaces 40 between the adjacent floor systems are filled with the low-level drop grooves 1c of the respective floor systems by the cast-in-place concrete c, and the top surface of the cast-in-place concrete c should be level with the height of the middle top surface 1a of the middle body part of the precast concrete slab 1, therefore, the precast concrete plate 1 and the cast-in-place concrete c can be integrated into a whole floor system to form a complete structure, and the cross section between the adjacent building floor slabs of the cast-in-place concrete c forms a T-shaped stable structure.
The shear connectors 41 welded to the steel beams 4 are embedded in the portions of the cast-in-place concrete c located in the separation spaces 40, and the shear connectors 41 may be of the existing structures such as studs and channel steel. The bottom reinforcing flat plate 31 is welded to the steel beam 4.
When the floor system is manufactured, the shear connectors 41 can be welded on the steel beams firstly, then the building floor slab is placed on the steel beams 4, the bottom reinforcing flat plate 31 and the reinforcing steel bars 4 are welded and fixed, and the pouring work of the cast-in-place concrete c is preferably carried out.
In addition, some positioning pins can be arranged, and corresponding positioning holes are formed in the steel beam and the edge of the building floor slab, so that the building floor slab can be conveniently placed and positioned on the steel beam.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A building floor, characterized in that: the concrete slab comprises a precast concrete slab (1), bottom reinforcing steel bars (2) are embedded in the bottom of the precast concrete slab (1), and a plurality of edge reinforcing parts (3) which are fixed with the bottom reinforcing steel bars (2) and are positioned at the edge of the precast concrete slab (1) are also embedded in the precast concrete slab (1).
2. A building floor according to claim 1, wherein: the edge reinforcement (3) comprises a bottom reinforcement flat plate (31) embedded at the bottom of the precast concrete plate (1) and a reinforced longitudinal plate (32) fixedly connected to the bottom reinforcement flat plate (31) and extending upwards, and at least one part of the reinforced longitudinal plate (32) is embedded in the edge part of the precast concrete plate (1).
3. A building floor according to claim 2, wherein: the edge reinforcing piece (3) is welded on the bottom reinforcing steel bar (2).
4. A building floor according to claim 2, wherein: the bottom surface of the bottom reinforcing flat plate (31) is exposed to the bottom of the precast concrete plate (1) and is in a coplanar state with the bottom surface part of the precast concrete plate (1) around the bottom reinforcing flat plate (31).
5. A building floor according to claim 2, wherein: the height of the middle top surface (1 a) of the middle main body part of the precast concrete plate (1) is larger than that of the low-level edge top surface (1 b) in the edge part top surfaces, and the precast concrete plate (1) forms a low-level drop height groove (1 c) above the low-level edge top surface (1 b) in an area with a height difference between the middle top surface (1 a) and the low-level edge top surface (1 b).
6. A building floor according to claim 5, wherein: the height of the top surface of the reinforcing longitudinal plate (32) is greater than that of the low-position edge top surface (1 b) and less than that of the middle top surface (1 a).
7. A building floor according to claim 2, wherein: at least more than 90% of the projection of the reinforced longitudinal plate (32) in the vertical projection plane is positioned in the projection of the edge part of the precast concrete plate (1) in the vertical projection plane.
8. The utility model provides a composite floor, includes girder steel (4), its characterized in that: the steel beams (4) are paved with a plurality of building floor slabs according to any one of claims 5 to 7, spacing spaces (40) are arranged between adjacent building floor slabs at intervals, the spacing spaces (40) are positioned above the beam bodies of the crossed steel beams (4), and cast-in-place concrete (c) capable of being filled in the low-level drop grooves (1 c) and the spacing spaces (40) is poured between the adjacent building floor slabs.
9. A modular floor according to claim 8, characterised in that: and shear connectors (41) welded on the steel beams (4) are embedded in the parts, located in the interval spaces (40), of the cast-in-place concrete (c).
10. A modular floor according to claim 8, characterised in that: the bottom reinforcing flat plate (31) is welded on the steel beam (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740247.1U CN212078398U (en) | 2019-10-17 | 2019-10-17 | Building floor and combined floor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740247.1U CN212078398U (en) | 2019-10-17 | 2019-10-17 | Building floor and combined floor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212078398U true CN212078398U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921740247.1U Active CN212078398U (en) | 2019-10-17 | 2019-10-17 | Building floor and combined floor system |
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| CN (1) | CN212078398U (en) |
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- 2019-10-17 CN CN201921740247.1U patent/CN212078398U/en active Active
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