阅读说明：本技术 装配式空间结构体系楼承板结构及其工艺 (Floor bearing plate structure of assembled space structure system and process thereof ) 是由 李斌 于 2021-07-08 设计创作，主要内容包括：本发明公开了一种装配式空间结构体系楼承板结构及其工艺,包括钢筋网架、吊挂构件和免拆底层,钢筋网架通过吊挂构件与免拆底层浇筑一体,构成混凝土浇筑前的模板体系,钢筋网架与现场后浇筑的混凝土组成楼承板的结构受力层；钢筋网架包括上部钢筋网和板底钢筋网,上部钢筋网和板底钢筋网之间焊接有横向附加钢筋和纵向附加钢筋,板底钢筋网的底部连接有吊挂构件,吊挂构件整体为倒T型结构。本发明提供的一种装配式空间结构体系楼承板结构及其工艺,楼承板的受力层一次浇筑成型,无拼缝,不需设置后浇带,避免了楼承板开裂的风险；楼承板施工方便,操作简单,无需现场绑扎钢筋；具有自重轻,便于运输、吊装的优点。(The invention discloses a floor bearing plate structure of an assembled space structure system and a process thereof, wherein the floor bearing plate structure comprises a reinforcing steel bar net rack, a hanging component and a disassembly-free bottom layer, wherein the reinforcing steel bar net rack and the disassembly-free bottom layer are cast into a whole through the hanging component to form a template system before concrete pouring, and the reinforcing steel bar net rack and concrete poured behind the site form a structural stress layer of the floor bearing plate; the steel bar net rack comprises an upper steel bar net and a slab bottom steel bar net, transverse additional steel bars and longitudinal additional steel bars are welded between the upper steel bar net and the slab bottom steel bar net, the bottom of the slab bottom steel bar net is connected with a hanging component, and the whole hanging component is of an inverted T-shaped structure. According to the floor bearing plate structure of the assembly type space structure system and the process thereof, the stress layer of the floor bearing plate is formed in a one-step pouring mode, no splicing seam exists, a post-pouring belt is not needed, and the risk of cracking of the floor bearing plate is avoided; the floor support plate is convenient to construct and simple to operate, and reinforcing steel bars do not need to be bound on site; has the advantages of light dead weight and convenient transportation and hoisting.)

1. The utility model provides an assembled spatial structure system building carrier plate structure which characterized in that: comprises a steel bar net rack (1), a hanging component (15) and a disassembly-free bottom layer (2); the steel bar net rack (1) is integrally cast with the disassembly-free bottom layer (2) through a hanging component (15) to form a template system before concrete casting; the steel bar net rack (1) and concrete poured behind the site form a structural stress layer (3) of the floor bearing plate.

2. A fabricated space frame floor deck construction as claimed in claim 1, wherein: the steel bar net rack (1) comprises an upper steel bar net (11) and a slab-bottom steel bar net (12), and a transverse additional steel bar (13) and a longitudinal additional steel bar (14) are welded between the upper steel bar net (11) and the slab-bottom steel bar net (12).

3. A fabricated space frame floor deck structure as recited in claim 2, wherein: the upper reinforcing mesh (11) and the slab bottom reinforcing mesh (12) are reinforcing meshes formed by welding transverse bars and longitudinal bars, the distance between every two adjacent transverse bars is 150-.

4. A fabricated space frame floor deck structure as claimed in claim 3, wherein: the transverse bars in the upper reinforcing mesh (11) and the transverse bars in the plate-bottom reinforcing mesh (12) are vertically aligned, and the longitudinal bars in the upper reinforcing mesh (11) and the longitudinal bars in the plate-bottom reinforcing mesh (12) are vertically aligned.

5. A fabricated space frame floor deck structure as recited in claim 2, wherein: the transverse additional steel bars (13) and the longitudinal additional steel bars (14) are vertically arranged, the number of the transverse additional steel bars is multiple, the transverse additional steel bars (13) and the longitudinal additional steel bars (14) are bent steel bars, each bent steel bar is composed of a horizontal section and an inclined section which are alternately arranged, and the included angle between each horizontal section and each inclined section is 120 degrees; the horizontal section is welded and fixed with the upper reinforcing mesh (11) or the plate bottom reinforcing mesh (12).

6. A fabricated space frame floor deck structure as recited in claim 2, wherein: the bottom of the plate bottom reinforcing mesh (12) is connected with a hanging component (15).

7. A fabricated space frame floor deck structure as recited in claim 6, wherein: the hanging component (15) consists of an upper vertical part (151) and a lower horizontal part (152), the vertical part (151) and the horizontal part (152) are vertically arranged, and the whole hanging component (15) is of an inverted T-shaped structure; the top end of the vertical part (151) is welded and fixed with the plate bottom reinforcing mesh (12); the horizontal part (152) is poured in the disassembly-free bottom layer (2).

8. A fabricated space frame floor deck construction as claimed in claim 1, wherein: the thickness of the disassembly-free bottom layer (2) is 15-20 mm; the height between the upper surface of the non-dismantling bottom layer (2) and the lower surface of the plate-bottom reinforcing mesh (12) is 15 mm.

9. The technology for assembling the floor bearing plate of the spatial structure system is characterized in that: the method specifically comprises the following steps:

firstly, manufacturing a reinforcing steel bar net rack (1), analyzing the reinforcing steel bars on the floor (house) surface according to a construction drawing of a single building, performing secondary design by combining the production process of the integral floor slab, and determining the diameter, the distance and the number of the reinforcing steel bars and the thickness of a concrete slab; carrying out factory assembly welding forming on the reinforcing steel bar net rack: welding the upper reinforcing mesh (11) in a crisscross manner, and welding the plate bottom reinforcing mesh (12) in a crisscross manner; welding the transverse additional steel bars (13) and the longitudinal additional steel bars (14) between the upper steel bar mesh (11) and the plate-bottom steel bar mesh (12) in a criss-cross manner;

step two, in the implementation process of the step one, the installation and the fixation of the water and electricity pipelines are carried out between the upper reinforcing mesh (11) and the slab-bottom reinforcing mesh (12); the implementation scheme is that the bottom reinforcing mesh (12) is manufactured firstly, and then pipelines are distributed according to professional design drawings of equipment such as water, electricity and heating;

step three, manufacturing a metal hanging component (15) for connecting the reinforcing steel bar net rack (1) and the disassembly-free bottom layer (2), and welding the metal hanging component (15) on the bottom reinforcing mesh (12) of the reinforcing steel bar net rack (1) in the step one according to the designed position;

step four, pouring a disassembly-free bottom layer (2); firstly, coating a separant in a building membrane shell, and then pouring a certain amount of mixed special mortar into the membrane shell with a designed size; then placing the steel bar net rack (1) and the hanging component (15) which are manufactured in the step three in the steel bar net rack, embedding the hanging component (15) into the special mortar layer, and curing and forming the bottom layer (2) without dismantling;

fifthly, transporting the reinforcement net rack (1) and the disassembly-free bottom layer (2) out of a factory, hoisting the whole to the position of a building in construction, and installing the whole in place;

and sixthly, pouring the structural stress layer (3), pouring common concrete above the disassembly-free bottom layer (2), pouring the reinforcing steel bar net rack (1) in the concrete, and curing and forming the structural stress layer (3).

10. A process for constructing a modular space frame floor deck according to claim 9, wherein: in the fourth step, the disassembly-free bottom layer (2) is made of special mortar and comprises the following components in parts by weight: 35 parts of ordinary silica cement, 65 parts of 40-70-mesh washed sand, 15 parts of special adhesive powder for bonding mortar and 5 parts of 6mm polypropylene fiber.

Technical Field

The invention relates to a floor bearing plate structure of an assembly type space structure system and a process thereof, belonging to the technical field of assembly type buildings.

Background

At present, the most common floor member applied to fabricated buildings is a concrete laminated slab. The concrete composite slab is an integral floor slab formed by laminating precast concrete slabs and post-cast reinforced concrete on site. The construction sequence of the concrete composite slab is as follows: and (3) mounting the precast concrete slab in place, laying related pipelines, binding top stressed steel bars on site, and pouring superposed layer concrete on the precast slab. The laminated plate stress model is firstly a 'plate', and is a typical stress component mainly subjected to bending.

The concrete laminated slab integrates the advantages of a cast-in-place slab and a precast slab, and is widely applied to a floor structure, but the existing laminated slab has the following defects:

1. the stress layer of the laminated slab is divided into a prefabricated layer and a superposed layer, the prefabricated layer and the superposed layer need to be poured twice, the superposed surface between the prefabricated layer and the superposed layer needs to be strictly treated during secondary pouring, and the integral performance after superposition is difficult to ensure; the joint of the laminated slab is easy to crack in the pouring and stress processes, the node structure and connection are complex, and the technical requirement of site construction is high;

2. after the prefabricated layer of the laminated slab is installed in place, the pipeline needs to be laid and the steel bars need to be bound in the open air on the construction site manually, so that the construction speed is low, the efficiency is low, and the working environment is poor;

3. the thickness of a prefabricated layer of the laminated slab is generally 60mm, the thickness of the laminated layer is generally 80mm, the weight of the prefabricated layer is large, the transportation and the hoisting are inconvenient, and the prefabricated layer is easy to damage;

4. according to the current standard, a post-cast strip is reserved between the prefabricated plates, and after the steel bars are laid, the prefabricated plates are cast together with concrete on the plates, so that a film must be supported at the bottom between every two plates, which is very troublesome.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

Aiming at the defects in the background technology, the invention provides a floor bearing plate structure of an assembly type space structure system and a process thereof, wherein a stress layer of the floor bearing plate is formed by one-step pouring, no splice seam exists, no post-pouring belt is needed, and the risk of cracking of the floor bearing plate is avoided; the floor support plate is convenient to construct and simple to operate, and steel bars do not need to be bound on site; when the floor slab is applied to a middle-span floor slab and a small-span floor slab, concrete with the thickness of 30mm can be reduced, the indoor clear height can be increased, the living comfort of a house is ensured, and the construction cost is reduced; has the advantages of light dead weight and convenient transportation and hoisting.

In order to solve the technical problems, the invention adopts the following technical scheme:

a floor bearing plate structure of an assembly type space structure system comprises a reinforcing steel bar net rack, a hanging component and a disassembly-free bottom layer; the steel bar net rack is cast with the disassembly-free bottom layer into a whole through the hanging component to form a template system before concrete pouring; the reinforcing steel bar net rack and concrete poured in situ form a structural stress layer of the floor bearing plate.

Further, the reinforcing bar net rack comprises an upper reinforcing bar net and a slab-bottom reinforcing bar net, and transverse additional reinforcing bars and longitudinal additional reinforcing bars are welded between the upper reinforcing bar net and the slab-bottom reinforcing bar net.

Furthermore, the upper reinforcing mesh and the slab bottom reinforcing mesh are reinforcing meshes formed by welding transverse ribs and longitudinal ribs, the distance between the adjacent transverse ribs is 150-.

Further, the transverse bars of the upper reinforcing mesh and the transverse bars of the slab-bottom reinforcing mesh are vertically aligned, and the longitudinal bars of the upper reinforcing mesh and the longitudinal bars of the slab-bottom reinforcing mesh are vertically aligned.

Furthermore, the transverse additional steel bars and the longitudinal additional steel bars are vertically arranged, the number of the transverse additional steel bars and the number of the longitudinal additional steel bars are multiple, the transverse additional steel bars and the longitudinal additional steel bars are bent steel bars, each bent steel bar is composed of a horizontal section and an inclined section which are alternately arranged, and the included angle between the horizontal section and the inclined section is 120 degrees; and the horizontal section is welded and fixed with the upper reinforcing mesh or the plate bottom reinforcing mesh.

Further, the bottom of the plate-bottom reinforcing mesh is connected with a hanging component.

Furthermore, the hanging component consists of an upper vertical part and a lower horizontal part, the vertical part and the horizontal part are vertically arranged, and the whole hanging component is of an inverted T-shaped structure; the top end of the vertical part is welded and fixed with the plate bottom reinforcing mesh; the horizontal part is poured in the disassembly-free bottom layer.

Further, the thickness of the disassembly-free bottom layer is 15-20 mm; the height between the upper surface of the non-dismantling bottom layer and the lower surface of the plate-bottom reinforcing mesh is 15 mm.

A technology for assembling type spatial structure system floor bearing plates specifically comprises the following steps:

firstly, manufacturing a reinforcing steel bar net rack, analyzing floor reinforcing steel bars according to a construction drawing of a building single body, performing secondary design by combining the production process of the integral floor slab, and determining the diameter, the interval and the number of the reinforcing steel bars and the thickness of a concrete slab; carrying out factory assembly welding forming on the reinforcing steel bar net rack: welding the upper reinforcing mesh in a crossed manner to form the upper reinforcing mesh, and welding the bottom reinforcing mesh in a crossed manner to form the bottom reinforcing mesh; crisscross welding the transverse additional steel bars and the longitudinal additional steel bars between the upper steel bar mesh and the slab bottom steel bar mesh;

step two, in the implementation process of the step one, the installation and the fixation of the water and electricity pipelines are carried out between the upper reinforcing mesh and the slab-bottom reinforcing mesh; the implementation scheme is that the bottom reinforcing mesh is manufactured firstly, and then pipelines are distributed according to professional design drawings of equipment such as water, electricity, heat and the like;

step three, manufacturing a metal hanging component for connecting the reinforcing steel bar net rack and the disassembly-free bottom layer, and welding the metal hanging component on the bottom layer reinforcing steel bar net of the reinforcing steel bar net rack in the step one according to the designed position;

pouring a disassembly-free bottom layer; firstly, coating a separant in a building membrane shell, and then pouring a certain amount of mixed special mortar into the membrane shell with a designed size; then placing the steel bar net rack and the hanging component which are manufactured in the step three in the steel bar net rack, and embedding the hanging component into the special mortar layer, so that the bottom layer is not detached, and the steel bar net rack and the hanging component are maintained and formed;

fifthly, transporting the reinforcing steel bar net rack and the disassembly-free bottom layer out of a factory, hoisting the whole to the position of a building in construction, and installing the whole in place;

and sixthly, pouring a structural stress layer, namely pouring common concrete above the disassembly-free bottom layer, pouring the reinforcing steel bar net rack in the concrete, and curing and forming the structural stress layer.

Further, in the fourth step, the disassembly-free bottom layer is made of special mortar and comprises the following components in parts by weight: 35 parts of ordinary silica cement, 65 parts of 40-70-mesh washed sand, 15 parts of special adhesive powder for bonding mortar and 5 parts of 6mm polypropylene fiber.

After the technical scheme is adopted, compared with the prior art, the invention has the following advantages:

the floor bearing plate of the assembly type spatial structure system is produced by an automatic production line, so that the equipment investment is low, the automation degree is high, the production process is simple, compared with the precast concrete composite slab, 2/3 is reduced for production workers, the weight of the bottom plate is only 1/6 of that of the precast concrete composite slab, the transportation and construction are convenient, and the production and installation labor cost is low;

the disassembly-free bottom layer is generally 15-20 mm in thickness, only plays a role of a template before the reinforced concrete stress layer is poured, does not participate in structural stress calculation, is designed according to a common cast-in-place concrete floor, and is simple to design and calculate; the space reinforcing steel bar net rack structure system consists of the upper reinforcing steel bar net, the slab bottom reinforcing steel bar net and the transverse additional reinforcing steel bars and the longitudinal additional reinforcing steel bars between the upper reinforcing steel bar net and the slab bottom reinforcing steel bar net, the space reinforcing steel bar net rack structure system and the disassembly-free bottom layer form a template system before concrete pouring, the template system bears the self weight and the construction load of the concrete, and the space reinforcing steel bar net rack structure system and the disassembly-free bottom layer form a reinforced concrete cast-in-place floor slab after the concrete pouring;

the stress layer of the floor bearing plate is formed by single pouring, and compared with the stress layer of the existing precast concrete composite slab which is poured twice, the thickness of concrete can be reduced by 30mm when the stress layer is applied to a middle-span floor slab and a small-span floor slab, so that the indoor clear height can be increased, the living comfort of a house is ensured, and the construction cost is reduced;

the net rack floor support plate has light self weight and is easy to hoist in place; the floor support plate is convenient to construct and simple to operate, has no abutted seam, does not need to be provided with a post-pouring belt, and avoids the risk of cracking the floor support plate.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a reinforcing steel bar net rack and a disassembly-free bottom layer;

fig. 3 is a perspective view of a reinforcing cage;

fig. 4 is a front view of the structure of the reinforcing cage.

In the figure, 1-steel bar net rack, 11-upper steel bar net, 12-plate bottom steel bar net, 13-transverse additional steel bar, 14-longitudinal additional steel bar, 15-hanging member, 151-vertical part, 152-horizontal part, 2-dismantling-free bottom layer and 3-structure stress layer.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.

Embodiment 1 floor support plate structure of fabricated space structure system

As shown in fig. 1-4, the present invention provides a floor deck structure of fabricated space structure system; the assembly type spatial structure system floor bearing plate is formed by integrally pouring an upper reinforcing steel bar net rack 1 and a disassembly-free bottom layer 2 through a hanging component 15, so that a template system before concrete pouring is formed, and the self weight and the construction load of concrete are borne. After the floor bearing plate is cast with concrete, the reinforcing steel bar net rack 1 in the floor bearing plate and the concrete cast in situ form a structural stress layer 3 of the floor bearing plate.

The steel bar net rack 1 comprises an upper steel bar net 11 and a slab-bottom steel bar net 12, wherein a transverse additional steel bar 13 and a longitudinal additional steel bar 14 are welded between the upper steel bar net 11 and the slab-bottom steel bar net 12, and the bottom of the slab-bottom steel bar net 12 is connected with a hanging member 15.

The upper reinforcing mesh 11 and the slab-bottom reinforcing mesh 12 are reinforcing meshes formed by welding transverse bars and longitudinal bars, and the distance between adjacent transverse bars is 150-200mm, preferably 160 mm; the distance between adjacent longitudinal ribs is 150-200mm, preferably 160 mm.

The transverse bars of the upper mesh reinforcement 11 and the transverse bars of the bottom mesh reinforcement 12 are vertically aligned, and the longitudinal bars of the upper mesh reinforcement 11 and the longitudinal bars of the bottom mesh reinforcement 12 are vertically aligned.

The transverse additional reinforcing bars 13 and the longitudinal additional reinforcing bars 14 are used to integrate the upper mesh reinforcement 11 and the slab-bottom mesh reinforcement 12 to form a spatial mesh grid structure. The stability of the structural stress layer 3 is improved, and the rigidity of the structural stress layer 3 is enhanced.

The transverse additional steel bars 13 and the longitudinal additional steel bars 14 are vertically arranged, the number of the transverse additional steel bars is multiple, the transverse additional steel bars 13 and the longitudinal additional steel bars 14 are bent steel bars, each bent steel bar is composed of a horizontal section and an inclined section which are alternately arranged, and the included angle between the horizontal section and the inclined section is 120 degrees; the horizontal section is welded and fixed with the upper reinforcing mesh 11 or the plate-bottom reinforcing mesh 12.

The hanging components 15 are uniformly distributed below the plate bottom reinforcing mesh 12; the hanging member 15 is composed of an upper vertical part 151 and a lower horizontal part 152, the vertical part 151 and the horizontal part 152 are vertically arranged, and the whole hanging member 15 is of an inverted T-shaped structure; the top end of the vertical part 151 is welded and fixed with the plate-bottom reinforcing mesh 12; the horizontal portion 152 is poured into the non-dismantling bottom layer 2.

The structural stress layer 3 is formed by pouring common concrete; the thickness of the structural stress layer 3 is 100mm, 120mm, 150mm, 180mm and the like according to the span, and preferably 100 mm.

The thickness of the disassembly-free bottom layer 2 is 15-20 mm; the height between the upper surface of the non-dismantling bottom layer 2 and the lower surface of the slab-bottom reinforcing mesh 12 is 15 mm.

The disassembly-free bottom layer 2 is made of special mortar and comprises the following components in parts by weight: 35 parts of ordinary silica cement, 65 parts of 40-70-mesh washed sand, 15 parts of special adhesive powder for bonding mortar and 5 parts of 6mm polypropylene fiber.

Example 2 Process of building Carrier plate of fabricated space Structure System

The invention provides a process for a floor bearing plate of an assembly type space structure system, which specifically comprises the following steps:

firstly, manufacturing a reinforcing steel bar net rack 1, analyzing the reinforcing steel bars on the floor (house) surface according to a construction drawing of a building single body, carrying out secondary design by combining the production process of the integral floor slab, and determining the diameter, the distance and the number of the reinforcing steel bars and the thickness of a concrete slab; carrying out factory assembly welding forming on the reinforcing steel bar net rack: welding the upper reinforcing mesh 11 in a crisscross way, and welding the plate bottom reinforcing mesh 12 in a crisscross way; welding the transverse additional steel bars 13 and the longitudinal additional steel bars 14 between the upper mesh reinforcement 11 and the bottom mesh reinforcement 12 in a crisscross manner;

step two, in the implementation process of the step one, the installation and the fixation of the water and electricity pipelines are carried out between the upper reinforcing mesh 11 and the slab-bottom reinforcing mesh 12; the implementation scheme is that the bottom reinforcing mesh 12 is manufactured firstly, and then pipelines are distributed according to professional design drawings of equipment such as water, electricity, heat and the like;

step three, manufacturing a metal hanging component 15 for connecting the steel bar net rack 1 and the disassembly-free bottom layer 2, and welding the metal hanging component 15 on the bottom layer steel bar mesh 12 of the steel bar net rack 1 in the step one according to the designed position;

step four, pouring the disassembly-free bottom layer 2; firstly, coating a separant in a building membrane shell, and then pouring a certain amount of mixed special mortar into the membrane shell with a designed size; then the reinforcing steel bar net rack 1 and the hanging component 15 which are manufactured in the step three are placed in the special mortar layer, so that the hanging component 15 is embedded in the special mortar layer, and the disassembly-free bottom layer 2 is maintained and molded;

fifthly, transporting the reinforcement net rack 1 and the disassembly-free bottom layer 2 to leave a factory, hoisting the whole to the position of a building in construction, and installing the whole in place;

and sixthly, pouring a structural stress layer 3, pouring common concrete above the disassembly-free bottom layer 2, pouring the reinforcing steel bar net rack 1 in the concrete, and curing and forming the structural stress layer 3.

In the fourth step, the disassembly-free bottom layer 2 is made of special mortar and comprises the following components in parts by weight: 35 parts of ordinary silica cement, 65 parts of 40-70-mesh washed sand, 15 parts of special adhesive powder for bonding mortar and 5 parts of 6mm polypropylene fiber.

The foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.