CN222667263U - Mounting structure of full-assembled floor and beam - Google Patents
Mounting structure of full-assembled floor and beam Download PDFInfo
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- CN222667263U CN222667263U CN202421237341.6U CN202421237341U CN222667263U CN 222667263 U CN222667263 U CN 222667263U CN 202421237341 U CN202421237341 U CN 202421237341U CN 222667263 U CN222667263 U CN 222667263U
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Abstract
The utility model relates to the technical field of assembled buildings and discloses a mounting structure of a fully assembled floor slab and a beam, which comprises a precast beam and an assembled floor slab lapped on the precast beam, wherein the precast beam and the assembled floor slab are of reinforced concrete structures, a post-pouring strip is arranged between the precast beam and the two assembled floor slabs, a plurality of rows of longitudinal ribs are arranged in the precast beam along the vertical direction, shear steel bars are arranged at the top of the precast beam, the upper ends of the shear steel bars extend into the post-pouring strip, two layers of steel bar nets are arranged in the assembled floor slab, crisscrossed connecting steel bars are arranged in each layer of steel bar net, the free ends of the connecting steel bars penetrate out of the assembled floor slab and extend into the post-pouring strip and are bent, and concrete is filled in the post-pouring strip. In practical application, the utility model improves the site construction efficiency and accelerates the construction progress.
Description
Technical Field
The utility model relates to the technical field of assembled buildings, in particular to a mounting structure of a fully assembled floor slab and a beam.
Background
In traditional building construction, the floor slab and the beam are built through formwork and steel bars on site and then poured with concrete for forming, the traditional construction mode is very large in site workload and high in construction cost, a large number of constructors are required to work simultaneously, and the construction period is long. Along with the proposal of novel building concepts, the assembled building is increasingly widely applied in China, and is an important trend of building industry development, wherein when a floor slab and a beam are constructed, the floor slab is a prefabricated laminated slab, namely, the floor slab with a bottom plate and a layer of steel bar truss, the use of the prefabricated laminated slab reduces the floor slab bottom die laying of a large area, the field construction amount is reduced to a certain extent, but the upper layer steel bars of the floor slab and the beam steel bars still need workers to carry out field laying and binding so as to connect the floor slab and the beam, the time and the labor are wasted, the construction efficiency is still lower, the hands of workers are easily scratched in the field steel bar binding process, and the construction cost is increased.
Disclosure of utility model
The utility model aims to provide a mounting structure of a fully assembled floor slab and a beam, so as to improve the construction efficiency and accelerate the construction progress.
The utility model aims at achieving the purposes, and adopts the following technical scheme that the fully assembled floor slab and beam installation structure comprises a precast beam and assembled floor slabs which are lapped on the precast beam, wherein the precast beam and the assembled floor slabs are of reinforced concrete structures, a post-pouring strip is arranged between the precast beam and the two assembled floor slabs, a plurality of rows of longitudinal ribs are arranged in the precast beam along the vertical direction, shear steel bars are arranged at the top of the precast beam, the upper ends of the shear steel bars extend into the post-pouring strip, two layers of steel bar nets are arranged in the assembled floor slabs, crisscrossed connecting steel bars are arranged in each layer of steel bar net, the free ends of the connecting steel bars penetrate out of the assembled floor slabs and extend into the post-pouring strip and are bent, and concrete is filled in the post-pouring strip.
The principle and the advantages of the scheme are as follows:
1. During practical application, the fabricated floor slab and the precast beam are uniformly produced in a factory in a labeling mode, only the fabricated connection is needed on site, two layers of criss-cross connecting steel bars are arranged in the fabricated floor slab, and the connecting steel bars are coated with a concrete structure, so that the fabricated floor slab is uniform in quality and high in strength, the upper layer part of the floor slab and the beam steel bars are not required to be paved and bound on site as in the prior art, the working procedures of supporting the beam and removing the beam are reduced, the workload is greatly reduced, the construction period is shortened, hand scratches caused by binding the steel bars on site by workers are effectively avoided, and the labor cost and the integral cost of construction are reduced.
2. The free ends of the connecting reinforcements of the assembled floor slab penetrate through the assembled floor slab and extend into the post-pouring belt to be bent, the shearing reinforcements at the top of the precast beam extend into the post-pouring belt, and the connecting reinforcements, the shearing reinforcements and the concrete form a reinforced concrete structure, so that the connecting node between the assembled floor slab and the precast beam has enough strength and rigidity, and meanwhile, the shearing reinforcements also enable the connecting node to have enough shearing resistance and earthquake resistance. The mounting structure enables the connecting node between the assembled floor slab and the precast beam to have enough strength and rigidity, and meanwhile, the mounting structure is simple and rapid to install.
Further, the free ends of the connecting bars at the upper layer in the assembled floor slab are bent downwards, the free ends of the connecting bars at the lower layer are bent upwards, and the upward bending length of the free ends of the connecting bars at the lower layer is larger than the downward bending length of the free ends of the connecting bars at the upper layer.
Meanwhile, the upward bending length of the connecting steel bars of the lower layer is longer than the bending length of the connecting steel bars of the upper layer, so that the upper and lower layers of connecting steel bars are staggered to form an effective shear-resistant key, and the shear resistance of the integral structure is improved.
Further, the free ends of the connecting steel bars outwards penetrate out of the assembled floor slab and extend into the post-pouring zone to be 90-150mm.
The arrangement ensures that the length of the assembled floor slab placed on the precast beam is not less than 15mm when the adjacent assembled floor slabs are installed, and the connecting steel bars with enough length in the post-cast strip enable the reinforced concrete structure at the position to have higher strength, so that the whole connecting structure is more stable.
Further, the concrete is micro-expansive fine stone concrete.
The micro-expansion agent is added into the micro-expansion fine stone concrete, and the micro-expansion occurs in the hardening process of the concrete, so that compensation shrinkage can be automatically performed, joints among components are reduced, the compactness is improved, the whole connecting structure is better in continuous, and meanwhile, the durability and water seepage resistance of the structure are enhanced.
Further, the assembled floor slab is internally embedded with an integrated wire pipe, the side surface of the assembled floor slab is provided with a plurality of hand hole grooves, and the free end of the integrated wire pipe penetrates out of the assembled floor slab and is positioned in the hand hole grooves.
According to the arrangement, when the adjacent two assembly type floors are subjected to butt joint installation of the integrated wire pipes, the integrated wire pipes in the two floors are not required to be completely aligned, corresponding hand hole grooves are only required to be aligned, then the positions of the free ends of the integrated wire pipes are adjusted in the hand hole grooves for butt joint installation, construction requirements are reduced, construction efficiency is effectively improved, meanwhile, the position accuracy requirements of the integrated wire pipes in the assembly type floors are reduced, the allowable position error range of the assembly type floors in laying pipelines in the production process is increased, production efficiency is improved, and production cost is effectively reduced.
Further, the length of the hand hole groove in the plane of the assembled floor slab is not less than 180mm, and the width is 180-220mm.
The length of hand hole groove is not less than 180mm in the above-mentioned setting is convenient for satisfy the free end of a plurality of integrated spool and arrange simultaneously according to actual circuit arrangement demand, and the width is 180-220mm be in order not to influence under the floor bearing area's the prerequisite, for integrated spool sets aside the assembly allowance in the adjacent assembled floor, flexible adjustment circuit when being convenient for actual arrangement reduces the assembly precision requirement, improves the efficiency of construction.
Further, the top of precast beam and assembled floor is opened there is the hoist and mount groove, has buried in precast beam and the assembled floor and has been hoisted the piece, and the top of hoist and mount piece is located the hoist and mount inslot and is less than the top surface of precast beam and assembled floor.
Compared with the prior art that the lifting piece protrudes out of the surface of the component, the lifting piece on the surface of the component is not required to be cut off after the precast beam and the assembled floor are lifted in the arrangement, so that the construction process is reduced, and meanwhile, when concrete is cast in situ, the connection strength of the cast-in-situ concrete layer, the precast beam and the assembled floor is enhanced due to the lifting groove concaved in the top surface of the component.
Further, adjustable strutting arrangement is connected with all dismantling on the upper portion of precast beam in both sides, and adjustable strutting arrangement includes fixed plate and supporting unit, is equipped with two connecting holes and welds on the fixed plate and has the connecting piece, and the vertical mounting hole that is equipped with on the connecting piece, supporting unit include backup pad and the bracing piece of welding in the backup pad bottom, threaded connection has adjusting nut on the bracing piece, and the bracing piece inserts in the mounting hole.
The setting makes the assembled floor not need to build the scaffold frame of filling the hall to support as in the prior art when installing to reduce the construction process that the scaffold frame was set up, greatly improved the efficiency of construction, and when needing to adjust the horizontal height of assembled floor, through the spanner screw adjusting nut can, satisfy on-the-spot support height adjustment demand, the construction flexibility is higher.
Further, bolt sleeves for fixing the adjustable supporting device are pre-buried on two sides of the precast beam.
The adjustable supporting device is detachably fixed on the lower-layer precast beam through the cooperation of the bolt and the bolt sleeve, the operation is simple and rapid, the construction efficiency is greatly improved, the adjustable supporting device is convenient to detach and repeatedly use after the installation of the assembled floor is finished through the bolt connection, and the construction cost is reduced.
Further, a plurality of strip-shaped grooves are formed in the top surface of the precast beam and two opposite end surfaces of the two assembled floors, and the surface roughness of the strip-shaped grooves is greater than that of the precast beam and the assembled floors.
The concrete in the post-cast strip enters the strip-shaped groove in the arrangement, so that the adhesive force between the concrete and the prefabricated part is increased, and the connection between the assembled floor slab and the prefabricated beam is more stable.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a top view of a fabricated floor slab in accordance with an embodiment of the present utility model.
Fig. 3 is a cross-sectional view taken along the direction A-A in fig. 2.
Fig. 4 is a schematic view of the installation of the hoisting member and the precast beam according to the embodiment of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
The reference numerals in the drawings of the specification comprise precast beams 1, shear steel bars 11, bolt sleeves 12, assembled floor slabs 2, connecting steel bars 21, hand hole grooves 22, post-cast strips 3, hoisting grooves 4 and hoisting pieces 5.
The embodiment is basically shown as figures 1-4, and the mounting structure of the full-assembled floor slab and the beam comprises a precast beam 1 and an assembled floor slab 2 with the end part lapped on the precast beam 1, wherein the precast beam 1 and the assembled floor slab 2 are of reinforced concrete structures, and a post-pouring belt 3 is arranged between the precast beam 1 and the assembled floor slab 2; a plurality of rows of longitudinal ribs are distributed in the precast beam 1 along the vertical direction, a plurality of shear steel bars 11 are buried at the top of the precast beam 1, the shear steel bars 11 are U-shaped steel bars, the open ends of the U-shaped steel bars are buried in the precast beam 1 downwards, and the other ends extend upwards into the post-pouring belt 3; two layers of reinforcing steel bars are arranged in the assembled floor slab 2, crisscrossed connecting reinforcing steel bars 21 are arranged in each layer of reinforcing steel bar net, free ends of the two layers of connecting reinforcing steel bars 21 extend outwards to penetrate out of the assembled floor slab 2 and extend into the post-cast strip 3, the free ends of the connecting reinforcing steel bars 21 penetrating out of the assembled floor slab 2 are bent at 90 degrees, the connecting reinforcing steel bars 21 on the upper layer are bent downwards, the connecting reinforcing steel bars 21 on the lower layer are bent upwards, the upward bending length of the free ends of the connecting reinforcing steel bars 21 on the lower layer is larger than the downward bending length of the free ends of the connecting reinforcing steel bars 21 on the upper layer, the outward extending length of the connecting reinforcing steel bars 21 on the lower layer is larger than the outward extending length of the connecting reinforcing steel bars 21 on the upper layer, so that effective shear keys are formed, the shearing resistance of the connecting structure is improved, the outward extending length of the connecting reinforcing steel bars 21 on the lower layer is 90-150mm, so that the laying length of the end part of the assembled wall slab on the precast beam 1 is not smaller than 15mm, the end part of the connecting reinforcing steel bars 21 is ensured to have enough length to extend into the post-cast strip 3 to be connected with concrete, the stability of the connecting structure is ensured, the concrete is filled with micro-concrete in the post-cast strip 3, the concrete forms an integrated reinforced concrete structure with the shear bars 11 and the connection bars 21.
As shown in fig. 2, an integrated line pipe is pre-buried in the assembled floor slab 2, the assembled floor slab 2 is provided with a plurality of hand hole grooves 22 at the side edges thereof, the free end of the integrated line pipe penetrates out of the assembled floor slab 2 and is positioned in the hand hole grooves 22, and the end face of the free end of the integrated line pipe is flush with the surface of the outermost side edge of the assembled floor slab 2, wherein the length of the hand hole grooves 22 in the plane of the assembled floor slab 2 is not less than 180mm, and the width is 180-220mm. Through the arrangement, when the adjacent two assembly type floors 2 are subjected to butt joint installation of the integrated wire pipes, the integrated wire pipes on two sides do not need to be aligned accurately, the movable space of the hand hole groove 22 is convenient for adjusting the position of the free end of the integrated wire pipe according to actual construction conditions, construction difficulty is effectively reduced, and construction efficiency is improved.
As shown in fig. 1, bolt sleeves 12 are buried in the upper portions of two sides of a precast beam 1, and an adjustable supporting device independently researched and developed by an applicant is fixed through the bolt sleeves 12 in a bolt manner, the adjustable supporting device comprises a fixing plate and a supporting unit, two connecting holes corresponding to the bolt sleeves 12 are formed in the fixing plate, connecting pieces are welded on the fixing plate, mounting holes are vertically formed in the connecting pieces, the supporting unit comprises a supporting plate and a supporting rod welded at the bottom of the supporting plate, an adjusting nut is connected to the supporting rod in a threaded manner, and the supporting rod is inserted into the mounting holes. When the assembled floor slab 2 is installed, the adjustable supporting device is fixed on the precast beam 1 through the connecting holes by bolts, then the assembled floor slab 2 is placed on the adjustable supporting device for supporting, when the horizontal height of the assembled floor slab 2 needs to be adjusted, the adjusting nuts are screwed through the spanner, so that a scaffold is not required to be erected again for supporting the floor slab, construction procedures of erecting and dismantling the scaffold are reduced, construction efficiency is greatly improved, and meanwhile after the construction of the precast floor slab 1 is completed, the adjustable supporting device can be disassembled from the bolt sleeve 12 for reuse.
The top surface of the precast beam 1 and two opposite end surfaces of the two assembled floors 2 are provided with a plurality of strip-shaped grooves, and the surface roughness of the strip-shaped grooves is larger than that of the precast beam 1 and the assembled floors 2. Through the arrangement, the concrete in the post-cast strip 3 enters the strip-shaped groove, so that the adhesive force between the concrete and the prefabricated part is increased, and the connection between the assembled floor slab 2 and the prefabricated beam 1 is more stable.
As shown in fig. 2 and 4, the top of the precast beam 1 and the assembled floor slab 2 are provided with a hoisting groove 4, the hoisting groove 4 is preferably hemispherical, the precast beam 1 and the assembled floor slab 2 are embedded with hoisting pieces 5, the whole hoisting pieces 5 are in a structure with large ends and small middle, specifically, the top of the hoisting pieces 5 is a disc body or a hemispherical body, the bottom of the hoisting pieces 5 is a disc body, and the hoisting pieces 5 can also be formed by equidistantly distributing a plurality of reinforcing steel bars. The top of the sling 5 is positioned in the sling groove 4 and does not exceed the upper surface of the precast beam 1 or the assembled floor slab 2. Through the structure, compared with the prior art that the lifting piece 5 protrudes from the surface of the component, the lifting piece 5 protruding from the surface of the component does not need to be cut off after the lifting is completed, so that the construction process is reduced, and meanwhile, when concrete is cast in situ, the connection strength of a cast-in-situ concrete layer and the component is enhanced due to the fact that the concave lifting groove 4 and the lifting piece 5 are in the top structure of a disc body or a hemispherical body.
The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (10)
1. The mounting structure of the full-assembled floor slab and the beams is characterized by comprising a precast beam and an assembled floor slab which is lapped on the precast beam, wherein the precast beam and the assembled floor slab are of reinforced concrete structures, a post-cast strip is arranged between the precast beam and the two assembled floor slabs, a plurality of rows of longitudinal ribs are arranged in the precast beam along the vertical direction, shear steel bars are arranged at the top of the precast beam, the upper ends of the shear steel bars extend into the post-cast strip, two layers of steel bar meshes are arranged in the assembled floor slab, crisscrossed connecting steel bars are arranged in each layer of steel bar mesh, the free ends of the connecting steel bars penetrate out of the assembled floor slab and extend into the post-cast strip and are bent, and concrete is filled in the post-cast strip.
2. The structure of claim 1, wherein the free ends of the upper connecting bars are bent downward, the free ends of the lower connecting bars are bent upward, and the upward bending length of the free ends of the lower connecting bars is greater than the downward bending length of the free ends of the upper connecting bars.
3. The fully assembled floor and beam installing structure according to claim 2, wherein the free ends of the connecting steel bars penetrate out of the assembled floor and extend into the post-pouring zone for 90-150mm.
4. A fully assembled floor and beam mounting structure according to claim 3 wherein the concrete is micro-expansive fine stone concrete.
5. The structure for installing the fully assembled floor slab and the beam according to claim 4, wherein the assembled floor slab is internally embedded with the integrated wire pipe, a plurality of hand hole grooves are formed in the side face of the assembled floor slab, and the free ends of the integrated wire pipe penetrate out of the assembled floor slab and are positioned in the hand hole grooves.
6. The fully assembled floor and beam mounting structure according to claim 5, wherein the hand hole grooves are not less than 180mm in length and 180-220mm in width in the plane of the assembled floor.
7. The fully assembled floor and beam installing structure of claim 6, wherein the prefabricated beam and assembled floor have hoisting slots in the tops, hoisting pieces embedded inside the prefabricated beam and assembled floor, and the tops of the hoisting pieces are below the tops of the prefabricated beam and assembled floor.
8. The fully assembled floor and beam mounting structure according to claim 7, wherein the prefabricated beams are detachably connected with adjustable supporting devices at the upper parts of two sides, each adjustable supporting device comprises a fixing plate and a supporting unit, two connecting holes are formed in the fixing plate and are welded with connecting pieces, mounting holes are vertically formed in the connecting pieces, each supporting unit comprises a supporting plate and a supporting rod welded at the bottom of the supporting plate, adjusting nuts are connected to the supporting rods in a threaded mode, and the supporting rods are inserted into the mounting holes.
9. The fully assembled floor and beam installing structure according to claim 8, wherein bolt sleeves for fixing the adjustable supporting devices are pre-embedded on two sides of the precast beams.
10. The fully assembled floor and beam installing structure of claim 9, wherein the top surface of the prefabricated beam and the two opposite end surfaces of the two assembled floor are provided with a plurality of strip-shaped grooves, and the surface roughness of the strip-shaped grooves is greater than that of the prefabricated beam and the assembled floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421237341.6U CN222667263U (en) | 2024-05-31 | 2024-05-31 | Mounting structure of full-assembled floor and beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421237341.6U CN222667263U (en) | 2024-05-31 | 2024-05-31 | Mounting structure of full-assembled floor and beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222667263U true CN222667263U (en) | 2025-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421237341.6U Active CN222667263U (en) | 2024-05-31 | 2024-05-31 | Mounting structure of full-assembled floor and beam |
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| Country | Link |
|---|---|
| CN (1) | CN222667263U (en) |
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- 2024-05-31 CN CN202421237341.6U patent/CN222667263U/en active Active
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