CN110107019B - Composite prefabricated floor slab for prefabricated building - Google Patents

Composite prefabricated floor slab for prefabricated building Download PDF

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Publication number
CN110107019B
CN110107019B CN201910388474.0A CN201910388474A CN110107019B CN 110107019 B CN110107019 B CN 110107019B CN 201910388474 A CN201910388474 A CN 201910388474A CN 110107019 B CN110107019 B CN 110107019B
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China
Prior art keywords
steel bar
composite
slab
bar
concrete precast
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CN201910388474.0A
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Chinese (zh)
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CN110107019A (en
Inventor
张新
夏天明
戚二舟
唐华
李�浩
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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Priority to CN201910388474.0A priority Critical patent/CN110107019B/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • E04C2/2885Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/50Self-supporting slabs specially adapted for making floors ceilings, or roofs, e.g. able to be loaded
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders

Abstract

The invention discloses a composite prefabricated floor slab for an assembly type building, and belongs to the technical field of assembly type buildings. The concrete precast slab comprises a concrete precast slab, composite filling rings are embedded at the inner side of the concrete precast slab at intervals, a central anchor pulling reinforcing steel bar system is arranged between the adjacent composite filling rings, reinforced bearing beams are arranged at the inner side of the concrete precast slab at intervals, and a bearing beam reinforcing steel bar truss is arranged inside the reinforced bearing beams. The composite filling ring is adopted to effectively reduce the whole weight of the prefabricated floor slab, simultaneously reduce the concrete pouring amount and enhance the sound insulation and heat insulation effects of the prefabricated floor slab, the anchor pulling reinforcing steel bar net piece, the central anchor pulling reinforcing steel bar system and the bearing beam reinforcing steel bar truss form a complete reinforcing steel bar supporting system to bear the working load of the prefabricated floor slab, a large number of working procedures, labor, cost, materials and time are saved, and the workability of prefabricated components and the whole quality performance of a building are improved.

Description

Composite prefabricated floor slab for prefabricated building
Technical Field
The invention relates to the technical field of prefabricated buildings, in particular to a composite prefabricated floor slab for a prefabricated building.
Background
The fabricated building is a building fabricated on a construction site by using prefabricated components, and is characterized by comprising the following aspects: a large number of building parts are produced and processed by workshops; the assembly operation of the prefabricated part is completed on site; adopting building and decoration integrated design and construction; design standardization and management informatization; accord with green building requirement, current assembly type building construction mainly has following problem: 1. the construction site assembly type building floor is completed by adopting a method of prefabricated laminated slabs and site cast-in-place floors. The method comprises the following steps of (1) needing a basic maintenance period, needing a formwork and a supporting system, and being capable of carrying out subsequent work after the design strength is reached, wherein the time and the cost of the method are main components of the field installation period of the fabricated building, 2, the installation process of grouting and anchoring by using an embedded sleeve is partially adopted, the problems that the positioning of a grouting sleeve anchoring steel bar is insufficient, the reserved length is insufficient, the grouting anchoring is not practical, the design load requirement can be met only after the design strength of a grouting material is reached, more temporary supporting systems are needed for matched installation, higher construction cost and period are occupied, 3, the drawing test of the threaded connection part of the grouting sleeve of a small-size steel bar cannot meet the connection quality requirement of the application technical specification, 4, the phenomenon of insufficient grouting and the like in the sleeve grouting operation can not reach the design anchoring strength requirement, and the problems are mainly caused at the field installation connection part of the fabricated building, the overall quality of the fabricated building cannot be equal to that of a cast-in-place building.
Disclosure of Invention
1. Technical problem to be solved by the invention
Compared with the conventional floor construction, the composite prefabricated floor for the fabricated building provided by the invention has the advantages that a large number of working procedures, labor, cost, materials and time are saved, the construction process of prefabricated laminated slabs and on-site cast-in-place floors can be replaced, the existing installation and connection method of prefabricated frame columns, beams, plates and walls is changed, the processability of prefabricated components is improved, and the overall quality performance of the fabricated building is improved.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a composite precast floor slab for an assembly type building, which comprises a concrete precast slab, wherein a frame beam is arranged at the edge position of the concrete precast slab, a frame annular reinforcing steel bar beam is connected to the surface of the frame beam, the frame beam and the frame annular reinforcing steel bar beam are fixedly bound, composite filling rings are pre-embedded at the inner side of the concrete precast slab at intervals, a central anchor pulling reinforcing steel bar system is arranged between adjacent composite filling rings, the central anchor pulling reinforcing steel bar system consists of an annular reinforcing steel bar and a C-shaped reinforcing steel bar, two ends of the C-shaped reinforcing steel bar penetrate through the annular reinforcing steel bar, a composite filling ball is arranged at the joint of the adjacent central anchor pulling reinforcing steel bar systems, reinforcing bearing beams are arranged at the inner side of the concrete precast slab at intervals, and a bearing beam reinforcing steel bar truss is arranged inside the reinforcing bearing beams;
the carrier bar steel bar truss comprises a lower screw ship-shaped main rib, an upper main bent rib, a connecting rib, a steel bar straight thread connecting sleeve and a steel bar U-shaped connecting clamping sleeve, the lower screw ship-shaped main rib and the upper main bent rib are fixedly connected through the connecting rib, one end of the upper main bent rib is connected with the steel bar U-shaped connecting clamping sleeve, the other end of the upper main bent rib is in threaded connection with the steel bar straight thread connecting sleeve, and the side binding of the carrier bar steel bar truss is connected with a pulling anchor steel bar net piece.
Furthermore, the composite filling ring is composed of an outer shell and a filling layer, wherein the filling layer is filled on the inner side of the outer shell, the outer shell is made of high-strength plastic or PVC materials, and the filling layer is made of sound-insulation and heat-insulation light materials.
Furthermore, the composite filling ball consists of an outer layer ball body and an inner filling body, and the inner side of the outer layer ball body is filled with the inner filling body.
Furthermore, the height of the reinforced bearing beam is equal to the thickness of the concrete precast slab, and the reinforced bearing beam and the concrete precast slab are integrally cast and molded.
Furthermore, frame anchor pulling holes are formed in the outer side edge of the concrete precast slab at equal intervals, column connector notches are formed in the corner positions of the concrete precast slab, and column connector reinforcing steel plates are fixedly arranged on the outer sides of the column connector notches.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention adopts the composite filling ring to effectively reduce the whole weight of the prefabricated floor slab, simultaneously reduce the concrete pouring amount and enhance the sound and heat insulation effect of the prefabricated floor slab, the end part of the bearing beam steel bar truss is connected with the corresponding steel bar U-shaped connecting clamping sleeve on the adjacent prefabricated composite board into a whole through the steel bar straight thread connecting sleeve, the prefabricated composite boards on the whole floor are ensured to be completely connected into a whole in the width direction, the whole stability and the shock resistance of the assembly type building can be effectively enhanced, the equal strength requirement of the cast-in-place floor is achieved and exceeded, the anchor pulling steel bar net piece is formed by binding high-strength steel bars, a complete steel bar supporting system is formed with the central anchor pulling steel bar system and the bearing beam steel bar truss, the working load of the prefabricated floor slab is borne, the whole device can meet the process requirements of rigid connection and quick installation between prefabricated components of the assembly type building, and the aim of quick assembly of the assembly type building is achieved, the method has the advantages of reducing field construction steps, reducing the investment of auxiliary materials, reducing construction cost, shortening the total construction period, saving a large amount of working procedures, labor, cost, materials and time compared with the conventional floor construction, replacing the construction process of prefabricated laminated slabs and field cast-in-place floors, changing the existing installation and connection method of prefabricated frame columns, beams, plates and walls, improving the workability of prefabricated components and improving the overall quality performance of the fabricated building.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a partial connection effect diagram of the present invention;
FIG. 3 is a schematic view of the composite filler ring of the present invention;
FIG. 4 is a front view of the center tie-down bar system of the present invention;
FIG. 5 is a top view of the center tie bar system of the present invention;
FIG. 6 is a schematic view of the composite packing ball of the present invention;
fig. 7 is a structural view of the girder steel bar truss according to the present invention.
In the figure: 1. a column interface cut; 2. a column interface reinforcing steel plate; 3. a frame beam; 4. a frame ring-shaped reinforcing beam; 5. a composite filler ring; 51. an outer housing; 52. a filling layer; 6. a central anchor bar system; 61. an annular rib; 62. c-shaped ribs; 7. compounding the filling balls; 71. an outer sphere; 72. an internal filling body; 8. reinforcing the carrier beam; 9. carrying beam steel bar trusses; 91. the lower part is provided with a screw boat-shaped main rib; 92. an upper main bend rib; 93. connecting ribs; 94. the steel bar is connected with the sleeve through straight threads; 95. a U-shaped connecting sleeve for the steel bar; 10. frame anchor pulling holes; 11. pulling anchor steel bar meshes; 12. a concrete precast slab.
Detailed Description
The invention is further described with reference to the following figures and examples:
example 1
As can be seen from fig. 1-7, the composite precast floor slab for prefabricated buildings in this embodiment includes a precast concrete slab 12, a frame beam 3 is disposed at an edge position of the precast concrete slab 12, the frame beam 3 is integrally formed by a solid structure and is cast together with the precast concrete slab 12, which mainly functions to ensure the overall stability of the floor slab and ensure the function of forming a high-strength connection node with the connected precast beams, slabs and walls, a frame ring-shaped steel bar beam 4 is connected to the surface of the frame beam 3, the frame ring-shaped steel bar beam 4 is composed of not less than 4 ring bars, the specification of the ring bars is selected and set according to the size and the stress of the precast concrete slab, not less than 2 hoop bars are disposed between adjacent frame anchor holes 10, the lap joint portion of the local ring bars can be arranged by encryption, the frame beam 3 is fixedly bound with the frame ring-shaped steel bar beam 4, a composite filling ring 5 is disposed at an inner side of the precast concrete slab 12, the composite filling ring 5 consists of an outer shell 51 and a filling layer 52, the filling layer 52 is filled on the inner side of the outer shell 51, the outer shell 51 is made of high-strength plastic or PVC material, the filling layer 52 is made of sound-proof and heat-proof light material, the composite filling ring 5 effectively reduces the whole weight of the prefabricated floor slab, simultaneously reduces the concrete pouring amount and enhances the sound-proof and heat-proof effects of the prefabricated floor slab, a central anchor-pulling reinforcing steel bar system 6 is arranged between the adjacent composite filling rings 5, the central anchor-pulling reinforcing steel bar system 6 consists of an annular rib 61 and a C-shaped rib 62, two ends of the C-shaped rib 62 penetrate through the annular rib 61, a composite filling ball 7 is arranged at the joint of the adjacent central anchor-pulling reinforcing steel bar systems 6, the composite filling ball 7 consists of an outer layer ball body 71 and an inner filling body 72, the inner side of the outer layer 71 is filled with the inner filling body 72, the composite filling ball 7 is filled in the gap part where the composite filling rings 5 are connected, with supplementary whole weight of lightening precast floor, reduce concrete placement volume and reinforcing precast floor sound insulation, thermal-insulated effect, the inboard interval of concrete precast slab 12 is provided with reinforcing carrier bar 8, reinforcing carrier bar 8 ensures the bulk strength and the stability of floor, the distribution interval sets up according to precast slab thickness requirement, whole area size, floor load, reinforcing carrier bar 8's inside is provided with carrier bar steel bar truss 9, reinforcing carrier bar 8's highly is equal to the thickness of concrete precast slab 12, reinforcing carrier bar 8 and concrete precast slab 12 integrated into one piece cast.
The carrier bar steel bar truss 9 is a main stressed part of a prefabricated composite floor slab, the whole structure is a steel bar truss structure, the specification of steel bars is determined by calculation according to the area and the stress state of a prefabricated slab, and the relevant standard requirements of the steel bar truss are executed according to the manufacturing standard, the carrier bar steel bar truss 9 is composed of a lower screw ship-shaped main rib 91, an upper main bent rib 92, a connecting rib 93, a steel bar straight thread connecting sleeve 94 and a steel bar U-shaped connecting sleeve 95, the lower screw ship-shaped main rib 91 is fixedly connected with the upper main bent rib 92 through the connecting rib 93, one end of the upper main bent rib 92 is connected with the steel bar U-shaped connecting sleeve 95, the steel bar U-shaped connecting sleeve 95 meets the tensile requirement of the main rib, the integral breaking tension is not less than 1.5 times of the rated breaking tension of the connected steel bars, the other end of the upper main bent rib 92 is in threaded connection with the steel bar straight thread connecting sleeve 94, the end part of the carrier bar steel bar truss 9 is connected with the corresponding steel bar U-shaped connecting sleeve 95 on the adjacent prefabricated composite floor slab through the steel bar straight thread connecting sleeve 94 Connect into wholly, ensure that the prefabricated composite panel of whole floor is whole in the whole connection of width direction, can, effectively strengthen assembly type structure's overall stability and shock resistance, reach and surpass cast-in-place floor's equal strong requirement, the side ligature of carrier bar steel bar truss 9 is connected with anchor steel net piece 11.
The outer side edge of the concrete precast slab 12 is provided with frame anchor pulling holes 10 at equal intervals, the diameter of the frame anchor pulling holes 10 is not less than 50mm, the frame anchor pulling holes are arranged at the positions corresponding to connecting sleeves reserved for precast floor slabs, precast walls and precast beams, the anchor pulling reinforcing steel bar net piece 11 is bent into a whole ring shape around the frame anchor pulling holes 10 for one circle so as to enhance the whole anchor pulling strength of the anchor pulling reinforcing steel bar net piece 11, after grouting is dense, the connection integrity of the precast slabs, walls and beams can be effectively ensured, the equal strength requirement of cast-in-place floors can be met and exceeded, the anchor pulling reinforcing steel bar net piece 11 is formed by high-strength reinforcing steel bar stretch-draw binding, and forms a complete reinforcing steel bar supporting system with a central anchor pulling reinforcing steel bar system 6 and a bearing beam reinforcing steel bar truss 9 to bear the working load of the precast floor slabs, the column interface notch 1 is arranged at the corner position of the concrete precast slab 12, the column interface notch 1 is fixedly provided with a column interface enhancing steel plate 2 outside, the column connector reinforced steel plate 2 is a steel plate cutting prefabricated iron part, is arranged in a matched manner with the column connector notch 1, is symmetrically arranged up and down, and is reliably bound with a prefabricated floor slab by additionally welding anchor claw ribs.
Before the concrete precast slab 12 is poured, the blanking manufacturing procedures of a column interface reinforced steel plate 2, a frame annular reinforced beam 4, a composite filling ring 5, a central anchor-pulling reinforced bar system 6, a bearing beam reinforced bar truss 9 and an anchor-pulling reinforced bar net piece 11 are carried out in advance, after the bottom die assembly is in place and is qualified by inspection, a lower single piece of the column interface reinforced steel plate 2 is installed, then the positioning and binding work of the frame annular reinforced bar beam 4 is completed according to a conversion construction drawing, the frame anchor-pulling hole 10 is positioned through a prefabricated hole die, the binding and shaping of a lower piece of the anchor-pulling reinforced bar net piece 11 are started after the positioning is completed, on the premise that the specification of the reinforced bar meets the bearing requirement, a small-specification high-strength threaded reinforced bar is adopted as far as possible, after the lower piece of the anchor-pulling reinforced bar net piece 11 is completed, two side dies in the length direction are combined, and the two side dies are required to be processed with accurate reserved holes of a reinforced bar straight thread connecting sleeve 94 and a reinforced bar U-shaped connecting sleeve 95 in advance, after the side forms are positioned, the bearing beam steel bar truss 9 is installed, after the bearing beam steel bar truss 9 is positioned, the composite filling ring 5 and the central anchor pulling steel bar system 6 are arranged, the composite filling ball 7 is arranged at the gap position of the outer side of the composite filling ring 5, the composite filling ball 7 and the anchor pulling steel bar net piece 11 are fixed together through iron wires, the displacement and floating phenomena of the part 7 when concrete is poured are prevented, the thickness of the concrete on the stress surface is damaged and reduced, after the processes are completed, the electromechanical pipeline system is pre-embedded and preset according to a construction drawing, after the electromechanical pipeline installation is completed, the upper steel bars of the anchor pulling steel bar net piece 11 are started to be installed, the upper steel bars are firmly bound with the bearing beam steel bar truss 9, the central anchor pulling steel bar system 6 and the frame annular steel bar beam 4 and are uniformly distributed, then the single piece on the reinforcing steel plate 2 of the column interface is installed, and the installation and the positioning of the whole part are completed, and the two side forms in the width direction are combined, and (3) adding a stable support system for the upper opening, and then completing the subsequent procedures of pouring, maintaining, removing the mold, repairing, rechecking, factory verification and the like of the concrete precast slab 12.
The invention adopts the composite filling ring 5 to effectively reduce the whole weight of the prefabricated floor slab, simultaneously reduce the concrete pouring amount and enhance the sound and heat insulation effect of the prefabricated floor slab, the end part of the bearing beam steel bar truss 9 is connected with the corresponding steel bar U-shaped connecting clamping sleeve 95 on the adjacent prefabricated composite board into a whole through the steel bar straight thread connecting sleeve 94 to ensure that the prefabricated composite boards of the whole floor are all connected into a whole in the width direction, thereby effectively enhancing the whole stability and the shock resistance of the assembly type building and reaching and exceeding the equal strength requirement of the cast-in-place floor, the anchor pulling steel bar net piece 11 is formed by stretching and binding high-strength steel bars and forms a complete steel bar supporting system with the central anchor pulling steel bar system 6 and the bearing beam steel bar truss 9 to bear the working load of the prefabricated floor slab, and the whole device can meet the process requirements of rigid connection and quick installation between prefabricated components of the assembly type building, ensuring that all prefabricated components can meet the bearing requirement like a cast-in-place concrete structure, effectively changing the installation mode of adopting grouting anchoring and cast-in-place connecting nodes between the prefabricated components of the conventional fabricated building, avoiding the quality problem caused by insufficient grouting and adverse factors such as certain maintenance period required by cast-in-place nodes, achieving the purpose of rapid assembly of the fabricated building, reducing the steps of on-site construction, reducing the investment of auxiliary materials, reducing the construction cost and shortening the total construction period, the prefabricated composite floor slab can be integrally prefabricated in a small compartment, the large compartment can be prefabricated in a split manner, the whole weight is reduced by 25 to 50 percent compared with the conventional floor slab, the sound insulation and heat insulation effects are better, the upper and lower surface forming effects can achieve the appearance quality of the fair-faced concrete, the floor slab bottom can save a whitewash mortar layer, the decorative layer is directly coated by putty, the floor slab layer can be cancelled, The floor, the stone or the epoxy coating layer is directly installed, a large number of working procedures, labor, cost, materials and time are saved compared with the conventional floor construction, the floor is a more perfect green construction process, the floor construction process can replace the construction process of a prefabricated laminated slab and an on-site cast-in-place floor, the existing installation and connection method of prefabricated frame columns, beams, plates and walls is changed, the workability of prefabricated components is improved, and the overall quality performance of the fabricated building is improved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims (5)

1. A composite precast floor slab for prefabricated buildings, comprising concrete precast slabs (12), characterized in that: the edge position of the concrete precast slab (12) is provided with a frame beam (3), the surface of the frame beam (3) is connected with a frame annular reinforcing beam (4), the frame beam (3) is fixedly bound with the frame annular reinforcing beam (4), composite filling rings (5) are embedded at intervals on the inner side of the concrete precast slab (12), a central anchor steel bar pulling system (6) is arranged between the adjacent composite filling rings (5), the central anchor-pulling reinforcing steel bar system (6) consists of annular bars (61) and C-shaped bars (62), two ends of each C-shaped bar (62) penetrate through the annular bars (61), a composite filling ball (7) is arranged at the joint of the adjacent central anchor-pulling reinforcing steel bar systems (6), reinforced bearing beams (8) are arranged on the inner sides of the concrete precast slabs (12) at intervals, and bearing beam steel bar trusses (9) are arranged inside the reinforced bearing beams (8);
carrier bar steel bar truss (9) by lower part area silk ship shape owner muscle (91), upper portion owner curved muscle (92), splice bar (93), reinforcing bar straight thread connection sleeve (94) and reinforcing bar U-shaped connect cutting ferrule (95) are constituteed, lower part area silk ship shape owner muscle (91) and upper portion owner curved muscle (92) pass through splice bar (93) fixed connection, the one end of upper portion owner curved muscle (92) is connected with reinforcing bar U-shaped connect cutting ferrule (95), the other end and the reinforcing bar straight thread connection sleeve (94) threaded connection of upper portion owner curved muscle (92), the side ligature of carrier bar steel bar truss (9) is connected with anchor bar net piece (11).
2. A composite precast floor slab for fabricated buildings according to claim 1, wherein: the composite filling ring (5) is composed of an outer shell (51) and a filling layer (52), the filling layer (52) is filled on the inner side of the outer shell (51), the outer shell (51) is made of high-strength plastics or PVC materials, and the filling layer (52) is made of sound-proof and heat-insulation light materials.
3. A composite precast floor slab for fabricated buildings according to claim 1, wherein: the composite filling ball (7) is composed of an outer layer ball body (71) and an inner filling body (72), and the inner side of the outer layer ball body (71) is filled with the inner filling body (72).
4. A composite precast floor slab for fabricated buildings according to claim 1, wherein: the height of the reinforced bearing beam (8) is equal to the thickness of the concrete precast slab (12), and the reinforced bearing beam (8) and the concrete precast slab (12) are integrally cast.
5. A composite precast floor slab for fabricated buildings according to claim 1, wherein: the concrete precast slab is characterized in that frame anchor pulling holes (10) are formed in the outer side edge of the concrete precast slab (12) at equal intervals, column connector notches (1) are formed in the corner positions of the concrete precast slab (12), and column connector reinforcing steel plates (2) are fixedly arranged on the outer sides of the column connector notches (1).
CN201910388474.0A 2019-05-10 2019-05-10 Composite prefabricated floor slab for prefabricated building Active CN110107019B (en)

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CN110107019B true CN110107019B (en) 2021-09-28

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110984402B (en) * 2019-10-15 2021-05-14 张曙光 Built-in steel plate embedded combined type occlusion member for prefabricated concrete building

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9213921D0 (en) * 1992-06-30 1992-08-12 Hsu Cheng Hui Reinforced and prefabricated construction panel
CN101818541A (en) * 2010-06-04 2010-09-01 北京万科企业有限公司 Precast composite wallboard with door/window holes and manufacturing method thereof
SE1450348A1 (en) * 2014-03-26 2015-09-27 Sto Scandinavia Ab Prefabricated facade elements and process for manufacturing the same
CN105544851A (en) * 2015-12-10 2016-05-04 上海宝岳住宅工业有限公司 Prefabricated sandwich thermal-insulation laminated wallboard and manufacturing method
CN107035064A (en) * 2017-03-23 2017-08-11 安徽天筑建设(集团)有限公司 A kind of prefabricated external wall panel structure and construction method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9213921D0 (en) * 1992-06-30 1992-08-12 Hsu Cheng Hui Reinforced and prefabricated construction panel
CN101818541A (en) * 2010-06-04 2010-09-01 北京万科企业有限公司 Precast composite wallboard with door/window holes and manufacturing method thereof
SE1450348A1 (en) * 2014-03-26 2015-09-27 Sto Scandinavia Ab Prefabricated facade elements and process for manufacturing the same
CN105544851A (en) * 2015-12-10 2016-05-04 上海宝岳住宅工业有限公司 Prefabricated sandwich thermal-insulation laminated wallboard and manufacturing method
CN107035064A (en) * 2017-03-23 2017-08-11 安徽天筑建设(集团)有限公司 A kind of prefabricated external wall panel structure and construction method

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