CN217353124U - Prefabricated assembled reinforced concrete superimposed sheet structure - Google Patents

Abstract

The utility model relates to a prefabricated assembled reinforced concrete superimposed sheet structure, including prefabricated whole board, prefabricated whole board top surface is floor structure completion face, and prefabricated whole board is formed by the coincide of cooperation from top to bottom of two-layer prefabricated plate unit, and two-layer prefabricated plate unit is prefabricated plate lower part unit and prefabricated plate upper portion unit respectively, the concrete piece lower part unit that prefabricated plate lower part unit evenly set up on bottom plate and the bottom plate, prefabricated plate upper portion unit include with concrete piece lower part unit complex concrete piece upper portion unit, through the cooperation of mortise-tenon joint structure between concrete piece lower part unit and the concrete piece upper portion unit, concrete piece lower part unit forms the concrete piece with concrete piece upper portion unit cooperation.

Description

Prefabricated assembled reinforced concrete superimposed sheet structure

Technical Field

The utility model belongs to 7.1 energy-efficient energy-saving industry key direction of 7.1.7 green building material direction down in 7.1.7 energy-conserving environmental protection industry of the emerging industry catalogue of strategy green building materials such as collection energy-conservation, fire prevention, heat preservation, fall make an uproar multi-functional in green building materials such as novel building wall body and roofing system of an organic whole, concretely relates to prefabricated assembled reinforced concrete superimposed sheet structure.

Background

At present, hollow floor is the floor that building field is commonly used, and the advantage lies in that the dead weight is light, and rigidity is big, and bearing capacity is high etc. and current floor generally produces through two kinds of modes: 1. cast-in-place hollow slab: placing an inner mold in advance before pouring concrete, and pouring and molding the inner mold together; 2. prefabricating a hollow slab: the two methods have the defects that the number of cavities is less, the cost is increased due to the increase of the number of the cavities, the strength is reduced due to the increase of the volume of the cavities, and the difficulty in increasing the hollow rate is higher.

The prefabricated reinforced concrete building structure technology is an important part of the green building construction technology in China, and has great significance for changing the construction mode, saving energy and reducing emission in China. The existing prefabricated reinforced concrete floor slabs are laminated floor slabs stressed unidirectionally, the laminated floor slabs are not only defective in stress mode but also poor in integrity, during construction, steel bar trusses need to be bound on prefabricated slabs, the binding process is troublesome, workers step on steel bar meshes to work, the bound steel bars and the steel bar meshes are prone to causing treading deformation, when concrete is poured, a layer of thick concrete needs to be poured on the prefabricated slabs, the combination effect of newly poured concrete and the prefabricated slabs is not ideal, and meanwhile the problems of large field operation amount, large concrete pouring amount, high manufacturing cost and the like exist.

The publication No. CN110778011A discloses a concrete precast slab, a connection structure and a construction method thereof, and particularly discloses that the top surface of a precast slab body is a finished surface of a floor slab structure, the edge of the precast slab is provided with a groove for placing a connection steel bar, the floor slab has higher prefabrication finish degree, no steel bar truss needs to be bound on the precast slab, the concrete pouring amount is less, but the defect is that the strength is poor because only the edge part is provided with the groove for arranging the connection steel bar.

SUMMERY OF THE UTILITY MODEL

In order to solve above-mentioned problem and a series of structural technology of prefabricated assembled reinforced concrete coincide hollow floor and with the connection structure scheduling problem of structural component such as frame composite beam, shear force wall, simultaneously, reduce the structural material quantity, reduce the construction link, reduce the construction degree of difficulty, improve structure construction quality to reduce the cost, reach the effect that reduces discharging and energy saving, for solving above-mentioned problem, the utility model provides a prefabricated assembled reinforced concrete superimposed sheet structure.

The purpose of the utility model is realized with the following mode: the prefabricated assembled reinforced concrete composite slab structure comprises a prefabricated whole slab 1, wherein the top surface of the prefabricated whole slab 1 is a floor slab structure finished surface, the prefabricated whole slab 1 is formed by vertically matching and superposing two layers of prefabricated slab units, the two layers of prefabricated slab units are a prefabricated slab lower unit 11 and a prefabricated slab upper unit 12 respectively, the prefabricated slab lower unit 11 comprises a bottom plate and concrete block lower units uniformly arranged on the bottom plate, the prefabricated slab upper unit 12 comprises concrete block upper units matched with the concrete block lower units, the concrete block lower units are matched with the concrete block upper units through a tenon-and-mortise structure, and the concrete block lower units are matched with the concrete block upper units to form concrete blocks.

Furthermore, semicircular preformed grooves are respectively arranged at the positions of the prefabricated plate lower unit 11 corresponding to the prefabricated plate upper unit 12, so that a group of corresponding preformed grooves after two prefabricated plate units are overlapped to form the prefabricated whole plate 1 form a circular pipeline preformed hole.

Further, the matching surface between the prefabricated panel lower unit 11 and the prefabricated panel upper unit 12 is provided with a groove, so that when two prefabricated panel units are stacked into the prefabricated whole panel 1, the groove of one prefabricated panel unit is sealed by the other prefabricated panel unit to form a cavity, and the prefabricated whole panel 1 is formed into a hollow panel structure.

Furthermore, the grooves are formed by respectively arranging reserved hollow grooves 61 on the matching surfaces of the lower unit of the concrete block and the upper unit of the concrete block, so that when two layers of prefabricated plate units are superposed into the prefabricated whole plate 1, the reserved hollow grooves 61 on the upper part and the lower part form a hollow structure 6, and the lower unit of the concrete block is matched with the upper unit of the concrete block to form a hollow concrete block.

Furthermore, the lower units of the concrete blocks are arranged on the bottom plate at intervals, and the upper units of the concrete blocks are arranged at intervals and connected into a whole through the connecting blocks 21.

Further, set up the negative muscle structure in board top and the arrangement of reinforcement structure at the bottom of the board in prefabricating whole board 1, the top surface of prefabricating whole board 1 is floor structure finished surface, and the limit portion of prefabricating whole board 1 sets up the negative muscle preformed groove 142 in limit portion of perpendicular to place, the negative muscle preformed groove 142 in limit portion on two crossing limits in prefabricating whole board 1 intersects near crossing bight, forms netted negative muscle preformed groove 152 in bight, and the middle part of prefabricating whole board 1 sets up netted negative muscle preformed groove 132 in middle part.

Further, the prefabricated whole plate 1 is rectangular;

the edge negative rib preformed grooves 142 are strip-shaped, and the edge negative rib preformed grooves 142 are arranged on the edge in an array manner;

an edge concrete block 141 vertical to the edge is formed between every two adjacent edge negative rib preformed grooves 142, and the edge concrete block 141 extends out of the edge to form a sawtooth structure on the edge; the grid part of the reticular corner negative reinforcement preformed groove 152 is provided with a corner concrete block 151; the middle concrete block 131 is arranged at the grid part of the reticular middle negative rib preformed groove 132;

the plate top negative rib structure is a net structure formed by crossing two plate top negative ribs 2 arranged in an array in two directions, each plate top negative rib 2 is arranged in the edge concrete block 141 and arranged along the direction of the edge concrete block 141 or penetrates through the middle part of the corner concrete block 151, and the plate top negative rib structure is prefabricated in the precast slab upper unit 12;

the bottom of the prefabricated whole plate 1 is provided with a plate bottom reinforcement structure corresponding to the plate top negative reinforcement structure, and the middle part of the plate bottom reinforcement structure is provided with a reinforcement reinforcing structure consisting of reinforcing reinforcements 5 with smaller intervals;

additional negative ribs 4 are arranged in the middle negative rib preformed groove 132, the side negative rib preformed groove 142 and the corner negative rib preformed groove 152, and the additional negative ribs 4 are bound on the plate top negative ribs 2 exposed in the negative rib preformed grooves.

Compared with the prior art, the utility model discloses prefabricated whole board top surface is floor structure finished surface, prefabricated whole board is formed by the coincide of two-layer prefabricated plate unit, and through the cooperation of tenon fourth of the twelve earthly branches structure, high convenience for assembly, the problem that need pour a large amount of concrete when having solved the construction, and double-deck structure is convenient for correspond the position punishment at lower part unit and prefabricated plate upper portion unit and do not form semicircular preformed groove when producing, the circular shape pipeline preformed groove of every group semicircular preformed groove forms the circular shape preformed hole after the prefabricated whole board of coincide, through two boards coincide, the middle pipeline preformed hole that forms, can pass through ground heating pipe etc. in the preformed hole during construction, make prefabricated whole board be applicable to the floor or other floors that pass through the pipeline, easy operation when actual production makes, and cost saving.

Drawings

FIG. 1 is an exploded view of a double-deck prefabricated panel structure according to the present invention;

FIG. 2 is a schematic perspective view of the lower unit of the prefabricated panel of the present invention;

FIG. 3 is a schematic perspective view of the upper unit of the prefabricated panels according to the present invention;

FIG. 4 is a schematic perspective view of the prefabricated whole plate of the present invention;

FIG. 5 is a schematic structural view of the upper unit fitting surface of the prefabricated panel according to the present invention;

FIG. 6 is a schematic structural view of the lower unit fitting surface of the prefabricated panel according to the present invention;

FIG. 7 is a schematic structural diagram of the bottom reinforcement structure of the lower unit plate of the prefabricated plate of the present invention;

FIG. 8 is a schematic structural view of the negative rib structure on the top of the unit slab at the upper part of the precast slab of the present invention;

FIG. 9 is an enlarged view at E in FIG. 8;

FIG. 10 is a sectional view taken along line A-A in FIG. 8, in which FIG. 10.1 is a schematic view of the configuration of the lower unit of the prefabricated panels about to be coupled with the upper unit of the prefabricated panels; FIG. 10.2 is a schematic structural view of a two-layer prefabricated plate unit assembled into a whole plate;

FIG. 11 is a sectional view taken along line B-B in FIG. 8, in which FIG. 11.1 is a schematic view of the structure of the lower unit of the prefabricated panels about to be coupled with the upper unit of the prefabricated panels; FIG. 11.2 is a schematic structural diagram of a two-layer prefabricated plate unit assembled into a whole plate;

FIG. 12 is a sectional view taken along line C-C in FIG. 8, in which FIG. 12.1 is a schematic view of the configuration of the lower unit of the prefabricated panels about to be coupled with the upper unit of the prefabricated panels; FIG. 12.2 is a schematic structural diagram of a two-layer prefabricated plate unit assembled into a whole plate;

FIG. 13 is a cross-sectional view taken along line D-D in FIG. 8, in which FIG. 13.1 is a schematic view of the configuration of the lower unit of the prefabricated panels about to be mated with the upper unit of the prefabricated panels; FIG. 13.2 is a schematic view of the structure of a two-layer prefabricated panel unit assembled into a whole panel.

Wherein, 1, prefabricating a whole plate; 11 prefabricated slab lower units; 111 pre-burying iron pieces; 1131, a middle concrete block lower unit; 1141 a lower unit of edge concrete block; 1151 corner concrete block lower units; 12 prefabricated panel upper units; 121 connecting blocks; 1231 middle concrete block upper unit; 1241 side concrete block upper unit; 1251 corner concrete block upper units; 13 a central region; 131 middle concrete block; 132 middle negative rib preformed groove; 14 support edge middle region; 141 side concrete blocks; 142 negative rib preformed grooves on the edge part; 15 corner regions; 151 corner concrete blocks; 152 corner negative rib preformed groove; 2. negative ribs are arranged on the top of the plate; 3, reinforcing bars at the bottom of the plate; 4, adding negative ribs; 5 reinforcing the reinforcing bars; 6, a hollow structure; 61 a hollow groove is reserved.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

Example 1:

as shown in fig. 1 to 13, a prefabricated reinforced concrete laminated slab structure comprises a prefabricated whole slab 1, wherein the prefabricated whole slab 1 is formed by vertically matching and superposing two prefabricated slab units, namely a prefabricated slab lower unit 11 and a prefabricated slab upper unit 12, and a groove is arranged on a matching surface between the prefabricated slab lower unit 11 and the prefabricated slab upper unit 12, so that when the two prefabricated slab units are overlapped to form the prefabricated whole slab 1, the groove of one prefabricated slab unit is sealed by the other prefabricated slab unit to form a cavity, and the prefabricated whole slab 1 forms a hollow slab structure.

Existing floor slabs are generally produced in two ways: 1. cast-in-place hollow slab: placing an inner mold in advance before pouring concrete, and pouring and molding the inner mold together; 2. prefabricating a hollow slab: adopt the mode shaping of extraction centre form during production, the shortcoming that these two kinds of methods exist is, the cavity is less, the quantity that improves the cavity can make the cost increase, the volume that improves the cavity can make intensity reduce, it is great to improve the hollow rate degree of difficulty promptly, the utility model discloses a divide into prefabricated plate two-layer about two-layer respectively prefabricated, set up the recess on the fitting surface of wherein at least one deck, make the synthetic whole board rear groove of two-layer unit closed vacuole formation, such benefit lies in can adjusting the structure in the time of making the mould, the quantity of control recess, position, shape, size, has also removed from in the production process and has placed the centre form, the loaded down with trivial details operation of extraction centre form makes: 1 the floor slab has higher hollow rate, namely the cavity has large total volume. 2, the material is saved, and the weight is lighter; 3, the sound insulation effect is better; 4, the production is simpler; 5, the quality is easier to ensure; 6 the earthquake-resistant performance is better.

Example 2:

this embodiment is further limited to embodiment 1, wherein the precast slab lower unit 11 comprises a bottom plate and a concrete block lower unit uniformly arranged on the bottom plate, and the precast slab upper unit 12 comprises a concrete block upper unit matched with the concrete block lower unit, and the grooves are formed by respectively arranging reserved hollow grooves 61 on the matching surfaces of the concrete block lower unit and the concrete block upper unit, so that when two precast slab units are stacked to form the precast slab 1, the reserved hollow grooves 61 on the upper part and the lower part form the hollow structure 6, and the concrete block lower unit is matched with the concrete block upper unit to form the hollow concrete block.

In detail, referring to the drawings, the lower concrete block units include a middle concrete block lower unit 1131, an edge concrete block lower unit 1141, and a corner concrete block lower unit 1151; the concrete block upper unit includes a middle concrete block upper unit 1231, a side concrete block upper unit 1241, and a corner concrete block upper unit 1251; the middle concrete block lower unit 1131 cooperates with the middle concrete block upper unit 1231 to form the middle concrete block 131, the side concrete block lower unit 1141 cooperates with the side concrete block upper unit 1241 to form the side concrete block 141, and the corner concrete block lower unit 1151 cooperates with the corner concrete block upper unit 1251 to form the corner concrete block 151.

A production method of a prefabricated assembly type reinforced concrete composite slab structure comprises the following steps:

a: respectively preparing moulds of a precast slab lower unit 11 and a precast slab upper unit 12, pre-embedding a slab bottom reinforcement 3 and a pre-embedded iron part 111 in the mould of the precast slab lower unit 11, pre-embedding a slab top negative reinforcement 2 in the mould of the precast slab upper unit 12, and pouring concrete in the mould;

b: and taking out the formed lower units 11 and upper units 12 of the precast slabs, matching and stacking two layers of precast slab units up and down to form the precast slabs 1 through matching between the lower units of the concrete blocks and the upper units of the concrete blocks, and matching the lower units of the concrete blocks and the reserved hollow grooves 61 of the upper units of the concrete blocks to form the hollow structures 6.

Each concrete block is provided with a hollow structure 6, and when the mould is manufactured, the number of the concrete blocks and the reserved hollow grooves 61 on each layer of precast slab unit is designed according to needs, so that the hollow rate and the structural strength are optimal.

Example 3:

this example is a further limitation of example 2, and the lower unit of the concrete block is matched with the upper unit of the concrete block through a mortise and tenon joint structure.

A production method of a prefabricated assembly type reinforced concrete composite slab structure is characterized by comprising the following steps: the production method comprises the following steps:

a: respectively preparing moulds of a precast slab lower unit 11 and a precast slab upper unit 12, pre-embedding a slab bottom reinforcement 3 and a pre-embedded iron part 111 in the mould of the precast slab lower unit 11, pre-embedding a slab top negative reinforcement 2 in the mould of the precast slab upper unit 12, and pouring concrete in the mould;

b: and taking out the formed lower units 11 and upper units 12 of the precast slabs, enabling the two precast slab units to be vertically matched and overlapped into a precast whole slab 1 through the matching of the lower units of the concrete blocks and the upper units of the concrete blocks through a tenon-and-mortise structure, and enabling the lower units of the concrete blocks to be matched with the reserved hollow grooves 61 of the upper units of the concrete blocks to form the hollow structures 6.

In the step a, a rod-shaped mold is arranged in the mold, so that semicircular preformed grooves are respectively formed at the positions, corresponding to the preformed plate lower unit 11 and the preformed plate upper unit 12, of the preformed plate lower unit after molding, and each group of semicircular preformed grooves form a circular pipeline preformed hole after the preformed plate 1 is superposed.

Through the coincide of two boards, the middle pipeline preformed hole that forms can make whole board of prefabrication 1 be applicable to the floor through floor heating pipe etc. in the preformed hole during the construction, easy operation when actual production is made practices thrift the cost.

Example 4:

this embodiment is further limited to embodiment 2, wherein the lower units of the concrete blocks are arranged on the bottom plate at intervals, and the upper units of the concrete blocks are arranged at intervals and connected into a whole through the connecting blocks 21.

And combining the following concrete blocks, wherein the concrete blocks are arranged at intervals, and negative rib preformed grooves are formed at the intervals in the middle.

Example 5:

the embodiment is a further limitation of the embodiment 4, the top surface of the prefabricated whole plate 1 is divided into nine-square grids, the middle grid is a central area 13, the four corner grids are corner areas 15, the four side grids are supporting side middle areas 14, and the size of the nine-square grids is determined according to actual conditions.

The prefabricated whole plate 1 is internally provided with a plate top negative rib structure and a plate bottom reinforcement structure, the top surface of the prefabricated whole plate 1 is a floor structure finished surface, the edge part of the prefabricated whole plate 1 is provided with an edge part negative rib preformed groove 142 perpendicular to the edge part, the edge part negative rib preformed grooves 142 on two crossed edge parts in the prefabricated whole plate 1 are crossed near the crossed corner parts to form a reticular corner part negative rib preformed groove 152, and the middle part of the prefabricated whole plate 1 is provided with a reticular middle part negative rib preformed groove 132.

The publication No. CN110778011A discloses a concrete precast slab, a connection structure and a construction method thereof, and particularly discloses that the top surface of a precast slab body is a finished surface of a floor slab structure, the edge of the precast slab is provided with a groove for placing a connection steel bar, the floor slab has higher prefabrication finish degree, no steel bar truss needs to be bound on the precast slab, the concrete pouring amount is less, but the defect is that the strength is poor because only the edge part is provided with the groove for arranging the connection steel bar.

Through setting up the negative muscle preformed groove 152 in netted bight and the negative muscle preformed groove 132 in netted middle part for even setting up in prefabricated whole board 1 limit portion additional negative muscle 4, and set up in the negative muscle preformed groove 132 in middle part additional negative muscle 4 can be independent reinforcing bar component reinforcing bar network structure, also can set up simultaneously in negative muscle preformed groove 132 in middle part and the negative muscle preformed groove 142 in limit portion, from the logical long reinforcing bar that stretches out in prefabricated whole board 1 both sides, structural strength is higher.

Example 6:

the embodiment is a further limitation to embodiment 5, and the prefabricated whole plate 1 is rectangular, and the rectangular shape is the most preferable for implementation, and can be other shapes;

the edge negative rib preformed grooves 142 are strip-shaped, and the edge negative rib preformed grooves 142 are arranged on the edge in an array manner;

an edge concrete block 141 vertical to the edge is formed between every two adjacent edge negative rib preformed grooves 142, and the edge concrete block 141 extends out of the edge to form a sawtooth structure on the edge; the grid part of the reticular corner negative rib preformed groove 152 is provided with a corner concrete block 151; the middle concrete block 131 is arranged at the grid of the net-shaped middle negative rib preformed groove 132;

during actual construction, the edge concrete blocks 141 extend out of the edge to enable the whole prefabricated plate 1 to be conveniently matched with the corresponding groove interfaces on the support (the composite beam or the wall column), and the problem of unidirectional stress of the original composite slab is solved.

The plate top negative rib structure is a net structure formed by crossing two plate top negative ribs 2 arranged in an array in two directions, each plate top negative rib 2 is arranged in the edge concrete block 141 and arranged along the direction of the edge concrete block 141 or penetrates through the middle part of the corner concrete block 151, and the plate top negative rib structure is prefabricated in the precast slab upper unit 12;

the plate top negative rib structure is formed by intersecting plate top negative ribs 2 which are respectively perpendicular to two intersected supporting edges and are arranged in an array mode, each plate top negative rib 2 is arranged in the edge concrete block 141 or penetrates through the middle of the corner concrete block 151, and each plate top negative rib 2 penetrates out of two sides of the prefabricated whole plate 1 and is bent downwards.

Preferably, the plate top negative rib 2 is arranged at the upper end of the middle part in each edge concrete block 141, the distance between two adjacent edge concrete blocks 141 is the same, the distance is also equal to the vertical distance of the central axes of the edge concrete block 141 and the corner concrete block 151 adjacent to the edge concrete block 141, and is equal to the distance between the central axes of the corner concrete blocks 151, so that the plate top negative ribs 2 are uniformly arranged.

The bottom of the whole prefabricated plate 1 is provided with a bottom reinforcement structure corresponding to the top negative reinforcement structure, and the top negative reinforcement 2 and the bottom reinforcement 3 are all long reinforcements and are arranged in the floor slab 1 and penetrate out from two sides of the floor slab. The middle part of the plate bottom reinforcement structure is provided with a reinforcement reinforcing structure consisting of reinforcing reinforcements 5 with smaller intervals, so that the strength of the prefabricated whole plate 1 is improved.

Additional negative ribs 4 are arranged in the middle negative rib preformed groove 132, the side negative rib preformed groove 142 and the corner negative rib preformed groove 152, and the additional negative ribs 4 are bound on the plate top negative ribs 2 exposed in the negative rib preformed grooves.

Ligature reinforcing bar needs ligature steel bar truss on the prefabricated plate on the building site, and the ligature process is comparatively troublesome, and the workman steps on work on the reinforcing bar net piece, causes easily to the reinforcing bar that the ligature is good to step on and warp, the utility model discloses the negative muscle 2 in board top has been prefabricated in the inboard, and additional negative muscle 4 also ligatures in the inslot, need not ligature steel bar truss again.

A production method of a prefabricated assembly type reinforced concrete composite slab structure is characterized by comprising the following steps: the production method comprises the following steps:

a: respectively preparing moulds of a precast slab lower unit 11 and a precast slab upper unit 12, pre-embedding a slab bottom reinforcement 3 and a pre-embedded iron part 111 in the mould of the precast slab lower unit 11, pre-embedding a slab top negative reinforcement 2 in the mould of the precast slab upper unit 12, and pouring concrete in the mould;

b: taking out the formed lower unit 11 and upper unit 12 of the precast slabs, and combining the two precast slab units up and down to form a precast whole slab 1 through the cooperation of the lower unit of the concrete block and the upper unit of the concrete block in a mortise and tenon joint structure, wherein the lower unit of the concrete block is matched with the reserved hollow groove 61 of the upper unit of the concrete block to form a hollow structure 6;

c: and arranging a tie bar to connect the embedded iron piece 111 with the exposed plate top negative bar 2 in the corresponding position of the precast slab upper unit 12, so that the precast slab lower unit 11 and the precast slab upper unit 12 are fixed.

Further, a part of concrete may be poured into the middle negative reinforcement preformed groove 132 in the middle region 13 after step c, so that the two precast slab units are integrated, or may be poured again during the construction process.

Further, in the step a, a rod-shaped mold is arranged in the mold, so that semicircular preformed grooves are respectively formed at positions of the molded prefabricated plate lower unit 11 corresponding to the prefabricated plate upper unit 12, and each group of semicircular preformed grooves form a circular pipeline preformed hole after the prefabricated whole plate 1 is laminated.

A construction method of a prefabricated assembly type reinforced concrete composite slab structure is characterized by comprising the following steps: the construction method comprises the following steps:

a: hoisting the prefabricated whole plate 1 at a support (a superposed beam or a wall) in place;

b: binding additional negative ribs 4 in the middle negative rib preformed groove 132, the side negative rib preformed groove 142 and the corner negative rib preformed groove 152 of the prefabricated whole plate 1;

c: and after binding is finished, concrete is poured in the negative reinforcement preformed groove of the floor slab and the support simultaneously, and the pouring surface is not more than the top surface of the body of the prefabricated whole plate (1), so that the floor slab and the support component are poured into a whole, and the structural construction is finished.

Further, the portion of the edge concrete block 141 extending beyond the edge when hoisted into place in step a protrudes into a corresponding recessed interface in the support beam or wall.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims (7)

1. The utility model provides a prefabricated assembled reinforced concrete superimposed sheet structure, includes prefabricated whole board (1), its characterized in that: the prefabricated whole plate (1) top surface is floor structure finished surface, prefabricated whole plate (1) is formed by matching and superposing two layers of prefabricated plate units from top to bottom, the two layers of prefabricated plate units are prefabricated plate lower unit (11) and prefabricated plate upper unit (12) respectively, prefabricated plate lower unit (11) comprises a bottom plate and concrete block lower unit uniformly arranged on the bottom plate, prefabricated plate upper unit (12) comprises concrete block upper unit matched with concrete block lower unit, the concrete block lower unit is matched with the concrete block upper unit through tenon-and-mortise structure, and the concrete block lower unit is matched with the concrete block upper unit to form concrete block.

2. A prefabricated assembly-type reinforced concrete composite slab structure as claimed in claim 1, wherein: and semicircular preformed grooves are respectively formed in the positions, corresponding to the preformed plate upper unit (12), of the preformed plate lower unit (11), so that a group of corresponding preformed grooves after two layers of preformed plate units are superposed into the prefabricated whole plate (1) form a circular pipeline preformed hole.

3. A prefabricated assembly-type reinforced concrete composite slab structure as claimed in claim 2, wherein: the matching surface between the precast slab lower unit (11) and the precast slab upper unit (12) is provided with a groove, so that when two precast slab units are overlapped to form the whole precast slab (1), the groove of one precast slab unit is sealed by the other precast slab unit to form a cavity, and the whole precast slab (1) forms a hollow slab structure.

4. A prefabricated assembly type reinforced concrete composite slab structure as claimed in claim 3, wherein: the grooves are characterized in that reserved hollow grooves (61) are respectively formed in matching surfaces of a lower unit of the concrete block and an upper unit of the concrete block, so that when two prefabricated plate units are superposed to form the prefabricated whole plate (1), the reserved hollow grooves (61) on the upper part and the lower part form a hollow structure (6), and the lower unit of the concrete block and the upper unit of the concrete block are matched to form a hollow concrete block.

5. A prefabricated assembly type reinforced concrete composite slab structure as claimed in claim 4, wherein: the lower units of the concrete blocks are arranged on the bottom plate at intervals, and the upper units of the concrete blocks are arranged at intervals and connected into a whole through connecting blocks (21).

6. A prefabricated assembly type reinforced concrete composite slab structure as claimed in claim 5, wherein: set up the negative muscle structure in board top and the arrangement of reinforcement structure at the bottom of the board in prefabricated whole board (1), the top surface of prefabricated whole board (1) is floor structure finished surface, and the limit portion of prefabricated whole board (1) sets up the negative muscle preformed groove (142) of limit portion of perpendicular to place limit portion, the negative muscle preformed groove (142) of limit portion on two crossing limit portions is crossing near crossing bight in prefabricated whole board (1), forms netted negative muscle preformed groove (152) in bight, and the middle part of prefabricated whole board (1) sets up netted negative muscle preformed groove (132) in middle part.

7. A prefabricated assembly-type reinforced concrete composite slab structure as claimed in claim 6, wherein: the prefabricated whole plate (1) is rectangular;

the edge negative rib preformed grooves (142) are strip-shaped, and the edge negative rib preformed grooves (142) are arranged on the edge in an array manner;

an edge concrete block (141) perpendicular to the edge is formed between every two adjacent edge negative rib preformed grooves (142), and the edge concrete block (141) extends out of the edge to form a sawtooth structure on the edge; the grid part of the reticular corner negative reinforcement preformed groove (152) is provided with a corner concrete block (151); the middle concrete block (131) is arranged at the grid of the reticular middle negative rib preformed groove (132);

the plate top negative rib structure is a net structure formed by crossing plate top negative ribs (2) arranged in an array in two directions, each plate top negative rib (2) is arranged in an edge concrete block (141) and arranged along the direction of the edge concrete block (141) or penetrates through the middle of a corner concrete block (151), and the plate top negative rib structure is prefabricated in an upper unit (12) of the prefabricated plate;

the bottom of the prefabricated whole plate (1) is provided with a plate bottom reinforcement structure corresponding to the plate top negative reinforcement structure, and the middle part of the plate bottom reinforcement structure is provided with a reinforcement reinforcing structure consisting of reinforcing reinforcements (5) with smaller intervals;

additional negative ribs (4) are arranged in the middle negative rib preformed groove (132), the side negative rib preformed groove (142) and the corner negative rib preformed groove (152), and the additional negative ribs (4) are bound on the plate top negative ribs (2) exposed in the negative rib preformed grooves.

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