CN115419165A - Precast concrete connecting node, precast concrete plate and manufacturing method thereof - Google Patents
Precast concrete connecting node, precast concrete plate and manufacturing method thereof Download PDFInfo
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- CN115419165A CN115419165A CN202210816203.2A CN202210816203A CN115419165A CN 115419165 A CN115419165 A CN 115419165A CN 202210816203 A CN202210816203 A CN 202210816203A CN 115419165 A CN115419165 A CN 115419165A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 193
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 105
- 239000010959 steel Substances 0.000 claims abstract description 105
- 239000004567 concrete Substances 0.000 claims abstract description 58
- 230000002787 reinforcement Effects 0.000 claims abstract description 33
- 230000000149 penetrating effect Effects 0.000 claims description 35
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 11
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/14—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements being composed of two or more materials
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
- E04B1/165—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with elongated load-supporting parts, cast in situ
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building 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
- E04C2/284—Building 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
- E04C2/288—Building 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Electromagnetism (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
The invention relates to a precast concrete connecting node, a precast concrete slab and a manufacturing method thereof, wherein the precast concrete slab comprises a steel reinforcement framework and a precast concrete body which is cast into an integral structure with the steel reinforcement framework, the corresponding side surface of the precast concrete body is a connecting side surface, the connecting side surface is provided with a connecting groove for post-casting concrete so that the connecting side surface forms a rough surface, the precast concrete slab further comprises a plurality of flexible cables which are arranged at intervals along the length direction of the connecting side surface, the flexible cables are in a ring structure, one end of each flexible cable is an embedded end which is cast into the integral structure with the precast concrete body, the other end of each flexible cable is a connecting end, the embedded end is sleeved on the corresponding steel bar of the steel reinforcement framework, and the side wall of the connecting side surface is provided with an anti-falling groove which is formed by pulling out the flexible end when the precast concrete body is not solidified.
Description
Technical Field
The invention relates to the field of fabricated buildings, in particular to a precast concrete connecting node based on a flexible cable, a precast concrete plate and a manufacturing method of the precast concrete connecting node.
Background
With the development of economic society of China, the requirements on energy conservation, environmental protection, low noise and the like are increasingly strict, and the labor cost is also rapidly increased, so that the development of the building industry is restricted to a certain extent, and the factors promote the reformation of the building industry. Building industrialization is an effective way to solve the above problems, and the adoption of an assembled structure is an important measure for realizing building industrialization.
Compared with the traditional building, the fabricated building has the advantages of energy conservation, emission reduction, environmental protection, industrial production, quick construction, short construction period and the like, and can improve the defects of low labor productivity, low technical innovation and low building quality of the building industry at the present stage of China. However, most of the existing fabricated buildings are connected in a reinforcement-producing mode, the actual construction process is quite inconvenient, and the using amount of the reinforcement is large.
The high-strength flexible annular cable material is widely connected in foreign countries, but is slowly popularized in China, the high-strength flexible annular cable material is embedded in the precast concrete members, the precast concrete members are placed at the appointed overlapping positions in the actual assembly process, seams with a certain distance are reserved between the adjacent precast concrete members, the overlapped cable materials are connected in a penetrating mode through the inserted ribs, and post-pouring materials are injected into the seams to form post-pouring belts.
For example, "a prefabricated wall structure connected by soft cables" disclosed in chinese patent CN111910794A, the prefabricated wall structure includes a prefabricated wall, the attribute connecting side of the prefabricated wall is a groove structure, the vertical connecting side of the groove structure is alternately provided with soft cables, i.e., flexible cables and reinforcing members, extending out of the groove structure, when two adjacent prefabricated walls are connected, the soft cables at two sides are overlapped and then pass through the vertical dowel bars for connection, and concrete is poured into the groove structure to form a core column.
The existing prefabricated wall structure based on the flexible cable can only simply realize the connection of the wall plate and the floor plate or the connection of the wall plate and the wall plate, but cannot really realize the connection of one floor plate and two wall plates; in addition, in order to improve the connection strength between the post-cast concrete and the groove structure, roughening treatment needs to be performed on the surface of the groove structure on the vertical connection side surface to form a rough surface, and the mode of forming the rough surface in the prior art is time-consuming and labor-consuming; the flexible cable and the steel reinforcement framework in the prefabricated wall structure need to be bound and embedded, so that the labor intensity is high, and the connection intensity of the cutting and binding operation cannot be guaranteed.
Disclosure of Invention
The invention aims to provide a precast concrete slab, which aims to solve the technical problems that the connection structure of a flexible cable and a steel reinforcement framework is complex and the rough surface is time-consuming and labor-consuming in the prior art; it is another object of the present invention to provide a precast concrete connection node using the precast concrete panel; the invention also aims to provide a manufacturing method of the precast concrete plate.
In order to solve the technical problems, the technical scheme of the precast concrete slab is as follows:
precast concrete board, including framework of steel reinforcement and the precast concrete body who pours into overall structure with framework of steel reinforcement, precast concrete body's the side that corresponds is the connection side, has the connecting groove who is used for concrete post-cast on the connection side, precast concrete board still includes a plurality of flexible cables along connecting side length direction interval arrangement, and flexible cable is ring structure, the one end of flexible cable be with the precast concrete body pours into overall structure's pre-buried end, the other one end of flexible cable is the link, and pre-buried end cover is connected on framework of steel reinforcement's the corresponding reinforcing bar, is provided with the anticreep recess that forms because of flexible end pull-out when the precast concrete body does not solidify on the lateral wall of connection side.
The precast concrete board is a wallboard, the flexible cables are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wallboard, the connecting side surface is formed by a groove wall of the connecting groove and side end walls positioned on two sides of the groove wall, one cable rope of the connecting end of each flexible cable penetrates out from the side end wall, and the other cable rope penetrates out from the groove wall.
The precast concrete slab is a floor slab with a rectangular structure, the flexible cables on two sides of the precast concrete slab in the width direction are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals in the thickness direction of the wall slab, the connecting side surface consists of a groove wall of the connecting groove and side end walls positioned on two sides of the groove wall, one cable rope of the connecting end of each flexible cable penetrates out from the side end wall, and the other cable rope penetrates out from the groove wall; each flexible cable on two sides of the precast concrete slab in the length direction is of a triangular structure.
One end of the precast concrete plate in the length direction is an A end, the other end of the precast concrete plate is a B end, the A end is provided with a cavity extending along the width direction of the precast concrete plate, the connecting end of a flexible cable of a triangular structure extends into the cavity, and cable penetrating holes are formed in the cavity walls of two sides of the cavity along the thickness direction of the precast concrete plate; the end face of the end B is provided with the connecting groove, the connecting end of the flexible cable of the triangular structure is positioned on the outer side of the end face of the end B, one cable rope of the connecting end of the flexible cable of the triangular structure penetrates out of the groove wall, and the other cable rope penetrates out of the groove wall.
The technical scheme of the precast concrete connecting node comprises the following steps:
the precast concrete connection node comprises at least two precast concrete plates, each precast concrete plate comprises a steel reinforcement framework and a precast concrete body which is cast into an integral structure with the steel reinforcement framework, the corresponding side surface of the precast concrete body is a connection side surface, a connection groove for post-pouring concrete is arranged on the connection side surface, the precast concrete plates further comprise a plurality of flexible cables which are arranged at intervals along the length direction of the connection side surface, each flexible cable is of an annular structure, one end of each flexible cable is a pre-embedded end which is cast into the integral structure with the precast concrete body, the other end of each flexible cable is a connection end, the pre-embedded ends are sleeved on corresponding steel bars of the steel reinforcement framework, anti-falling grooves which are formed by pulling out the flexible ends when the precast concrete body is not solidified are arranged on the side walls of the connection side surfaces, and the post-poured concrete body is cast in the connection grooves and the anti-falling grooves.
The precast concrete connection node comprises two precast concrete plates which are wall plates, flexible cables of the wall plates are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall plates, the connection side surface is formed by a groove wall of a connection groove and side end walls positioned on two sides of the groove wall, one cable rope of the connection end of each flexible cable penetrates out from the side end wall, the other cable rope penetrates out from the groove wall, the connection end of the flexible cable on one wall plate is arranged in a crossed mode with the connection end of the flexible cable on the other wall plate, the precast concrete node further comprises a flexible cable connection reinforcing steel bar penetrating between the connection ends corresponding to the flexible cables in crossed mode, and the post-cast concrete body is cast into an integral structure with the connection ends of the flexible cables and the flexible cable connection reinforcing steel bar.
The precast concrete connection node comprises three precast concrete plates, wherein one precast concrete plate is a horizontally arranged rectangular floor slab, the other two precast concrete plates are wall plates vertically arranged on the upper side and the lower side of the floor slab, one end of the floor slab in the length direction is an end A, the other end of the floor slab is an end B, the end A is provided with a cavity extending along the width direction of the precast concrete plates, the connecting end of a flexible cable of a triangular structure extends into the cavity, and cable through holes are formed in the cavity walls of the two sides of the cavity along the thickness direction of the precast concrete plates; the flexible cables of the wall board are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall board, the connecting side surface is composed of a groove wall of a connecting groove and side end walls positioned at two sides of the groove wall, one cable rope of the connecting end of each flexible cable penetrates out from the side end walls, the other cable rope penetrates out from the groove wall, one flexible cable of each pair of flexible cables is defined as a first flexible cable, the other flexible cable is a second flexible cable, the second flexible cable is positioned at one side far away from the floor, the two wall boards are arranged at the upper side and the lower side of the A end, the connecting ends of the first flexible cables of the two wall boards penetrate through corresponding cable penetrating holes along the up-down direction and then are arranged in a cavity in a crossed mode, the connecting ends of the second flexible cables of the two wall plates penetrate through the corresponding cable penetrating holes along the vertical direction and are arranged in a cavity in a crossed mode, the corner point position of the flexible cable of the triangular structure and the connecting end of the second flexible cable are arranged in a crossed mode, the prefabricated concrete connecting node comprises second flexible cable penetrating steel bars penetrating the crossing position of the flexible cable of the triangular structure and the crossing position of the second flexible cable, the prefabricated concrete connecting node further comprises first flexible cable penetrating steel bars penetrating the crossing position of the first flexible cable, and the post-cast concrete body, the connecting ends of the first flexible cable, the second flexible cable and the flexible cable of the triangular structure, the first flexible cable penetrating steel bars and the second flexible cable penetrating steel bars are cast into an integral structure.
The precast concrete connection node comprises four precast concrete plates, wherein two precast concrete plates are horizontally arranged rectangular floors, the two floors are arranged on the left and right sides, the other two precast concrete plates are wall plates vertically arranged on the upper side and the lower side of the floors, one end of the floor in the length direction is an A end, the other end of the floor is a B end, the end face of the B end is provided with the connection groove, the connection end of the flexible cable in the triangular structure is positioned on the outer side of the end face of the B end, one cable rope of the connection end of the flexible cable in the triangular structure penetrates out from the groove wall, the other cable rope penetrates out from the groove wall, the flexible cables of the wall plates are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall plate, the connection side face is composed of the groove wall of the connection groove and the side end walls positioned on the two sides of the groove wall, one cable rope of the connection end of each flexible cable penetrates out from the side end walls, the other rope penetrates through the groove wall to define that one flexible rope in each pair of flexible ropes is a first flexible rope, the other flexible rope is a second flexible rope, the second flexible rope is positioned on the right side of the first flexible rope, the two wallboards are arranged on the upper side and the lower side of the end B, the connecting ends of the first flexible ropes of the two wallboards penetrate through the corresponding connecting groove side wall along the vertical direction and are arranged in a cross mode in the connecting groove on the left side, the connecting ends of the second flexible ropes of the two wallboards penetrate through the corresponding connecting groove side wall along the vertical direction and are arranged in a cross mode in the connecting groove on the right side, the flexible ropes of the triangular structure of the left floor slab are defined as left flexible ropes, the flexible ropes of the triangular structure of the right floor slab are defined as right flexible ropes, the angle tip positions of the left flexible ropes are arranged in a cross mode with the connecting ends of the second flexible ropes, the angle tip positions of the right flexible ropes are arranged in a cross mode with the connecting ends of the first flexible ropes, prefabricated concrete connected node is including wearing the second flexible cable steel bar of wearing in the crossing position of left side flexible cable and second flexible cable, and prefabricated concrete connected node still includes wearing the first flexible cable steel bar of wearing in the crossing position of right side flexible cable and first flexible cable, and the integral structure is pour into to the post-cast concrete body and the link and first flexible cable steel bar, the second flexible cable steel bar of wearing of the link of first flexible cable, second flexible cable, left side flexible cable and right side flexible cable, second flexible cable steel bar.
And vertical additional joint bars are arranged in the post-cast concrete body.
The technical scheme of the method for manufacturing the precast concrete slab comprises the following steps: the method comprises the following steps: firstly, manufacturing a steel reinforcement framework, wherein the steel reinforcement framework comprises transverse steel bars and longitudinal steel bars which are arranged in a crossed mode, the transverse steel bars and the longitudinal steel bars are connected into corresponding inner holes of flexible cables in a penetrating mode, then the corresponding transverse steel bars and the corresponding longitudinal steel bars are bound together, secondly, supporting a mould on the periphery of the steel reinforcement framework and the flexible cables, enabling connecting ends of the flexible cables to be attached to the inner surface of the mould, pouring precast concrete into the mould, enabling the flexible connecting ends to be soaked in the precast concrete, thirdly, detaching the mould when the precast concrete is not solidified, enabling the precast concrete not to collapse, pulling up the connecting ends of the flexible cables from corresponding sides of the precast concrete, and forming anti-falling grooves on the connecting sides of the precast concrete along with the pulling up of the connecting ends of the flexible cables.
The invention has the beneficial effects that: according to the invention, the flexible cables are of an annular structure, so that the flexible cables can be sleeved on corresponding steel bars of the steel bar framework, the connection strength between the flexible cables and the steel bar framework can be realized without binding, in the process of manufacturing the precast concrete plate, the connecting ends of the flexible cables are attached to the inner wall of the mould, the connecting ends of the flexible cables are immersed in precast cast concrete, when the precast cast concrete is not completely solidified, the mould is removed, the connecting ends of the flexible cables are pulled up from the corresponding side surfaces of the precast concrete, along with the pulling up of the connecting ends of the flexible cables, the anti-falling grooves are formed on the connecting side surfaces of the precast concrete, the connecting side surfaces of the anti-falling grooves form rough surfaces, and the anti-falling grooves can improve the connection strength between a precast concrete body and a post-cast concrete body.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to like or corresponding parts and in which:
fig. 1 is a schematic structural view of an embodiment 1 of a precast concrete panel according to the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
FIG. 4 is a schematic view of the flexible cable of FIG. 1 engaged with the framework of reinforcement bars;
FIG. 5 is a schematic view showing the fitting of a precast concrete body with a mold in example 1;
FIG. 6 is a schematic view of the flexible cables of FIG. 1 engaged with the connecting grooves and the anti-run-off grooves;
FIG. 7 is a perspective view of FIG. 1;
fig. 8 is a schematic structural view of embodiment 2 of the precast concrete panel of the present invention;
FIG. 9 is a cross-sectional view taken along line C-C of FIG. 8;
FIG. 10 is a cross-sectional view D-D of FIG. 8;
FIG. 11 is a cross-sectional view E-E of FIG. 8;
FIG. 12 is a cross-sectional view F-F of FIG. 8;
fig. 13 is a schematic view showing the engagement of triangular flexible cables with the reinforcing cage in embodiment 2 of the precast concrete panel;
FIG. 14 is a schematic view showing the fitting of a precast concrete body to a mold in example 2;
FIG. 15 is a perspective view of FIG. 8;
fig. 16 is a schematic structural view of a precast concrete connection node according to an embodiment 1 of the present invention;
FIG. 17 is a sectional view taken along line G-G of FIG. 16;
fig. 18 is a schematic view of the vertical additional steel bars of the shear plate and grouting holes in embodiment 1 of the precast concrete connection node of the present invention;
FIG. 19 is a cross-sectional view M-M of FIG. 18;
fig. 20 is a schematic structural view of a precast concrete connection node according to an embodiment 2 of the present invention;
FIG. 21 is an enlarged view at Z in FIG. 20;
FIG. 22 is a schematic structural view of a precast concrete node according to example 3 of the present invention;
FIG. 23 is an elevation view of embodiment 3 of the precast concrete node of the present invention;
FIG. 24 is a sectional view taken along line H-H of FIG. 22;
FIG. 25 is a cross-sectional view taken along line I-I of FIG. 23;
FIG. 26 is a perspective view of FIG. 22;
fig. 27 is a schematic structural view of a precast concrete node according to an embodiment 4 of the present invention;
FIG. 28 is an elevation view of embodiment 4 of the precast concrete node of the present invention;
FIG. 29 is a sectional view taken along line J-J of FIG. 27;
FIG. 30 is a cross-sectional view taken along line K-K of FIG. 28;
FIG. 31 is a perspective view of FIG. 27;
description of reference numerals: 0. a mold; 1. a wallboard; 1-1, connecting a groove with a wallboard; 1-2, grouting holes of the wallboard; 1-3, groove wall; 2. a floor slab; 2-1, connecting a groove with a floor slab; 2-2, grouting holes of the floor slab; 2-3, threading a cable hole; 2-4, a cavity; 2-5, threading a groove; 3. a flexible cable; 4. a steel reinforcement cage; 4-1, normal reinforcement inside the component; 4-2, penetrating a flexible cable through a steel bar; 4-3, vertically attaching a dowel bar to the shear wall plate; 5. a thermal insulation material; 6. post-pouring a concrete body; 7. a steel bar limiting device; 7-1, a steel bar limiter; 7-2, a plug; 8. a side end wall; 9. embedding ends in advance; 10. a connecting end; 11. an anti-drop groove; 12. a first flexible cord; 13. a second flexible cord; 14. a left flexible cable; 15. the right flexible cord.
Detailed Description
In order to facilitate an understanding of the invention, reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1 of the precast concrete panel of the present invention is shown in fig. 1 to 7:
the precast concrete slab in the embodiment is a wall panel 1 which is vertically placed when in use and comprises a steel reinforcement framework 4 and a precast concrete body which is cast with the steel reinforcement framework into an integral structure, wherein an item 4-1 in the figure represents a normal reinforcement inside a component of the steel reinforcement framework, and a heat insulation material 5 is also embedded in the middle position of the precast concrete body. The four side surfaces of the precast concrete body are connecting side surfaces, each connecting side surface is provided with a connecting groove for post-pouring concrete, the connecting groove on the wallboard can be called as a wallboard connecting groove 1-1, and the cross section of the connecting groove is of a semicircular structure.
The height direction of the precast concrete slab is defined as the vertical direction, the width direction is the left-right direction, and the thickness direction is the front-back direction, so that the upper side surface, the lower side surface, the left side surface and the right side surface of the precast concrete body are both connecting side surfaces. The connecting grooves on the upper side surface and the lower side surface of the precast concrete body extend along the left-right direction, and the connecting grooves on the left side surface and the right side surface of the precast concrete body extend along the up-down direction.
Each connecting side surface is provided with a plurality of flexible cables 3 which are arranged at intervals along the length direction of the corresponding connecting side surface, the flexible cables are in annular structures which are connected in a circumferential closed mode, and the flexible cables in the embodiment are made of steel strands.
One end of the flexible cable 3 is an embedded end 9 which is poured into an integral structure with the precast concrete body, the other end of the flexible cable is a connecting end 10, the embedded end 9 is sleeved on a corresponding steel bar of the steel bar framework, and an anti-falling groove 11 formed by pulling out the connecting end of the flexible cable when the precast concrete is not solidified is arranged on the side wall of the connecting side face.
In this embodiment, the flexible cables are arranged in pairs at corresponding cross sections of the precast concrete slab, each pair of flexible cables comprises two said flexible cables spaced apart in the thickness direction of the wall panel, the connecting side is formed by the groove wall 1-3 of the connecting groove and the side end walls 8 at both sides of the groove wall, one cable of the connecting end of each flexible cable is threaded out through the side end wall, and the other cable is threaded out through the groove wall.
The prefabricated concrete body is also internally provided with three grouting holes which are arranged at intervals along the width direction, the grouting holes on the wall plate can be called wall plate grouting holes 1-2, the axis of the wall plate grouting holes 1-2 extends along the up-down direction, one grouting hole is positioned in the middle position of the prefabricated concrete body in the left-right direction, and the other two grouting holes are respectively positioned between two flexible cables of the corresponding pair of flexible cables.
The upper end of the grouting hole is communicated with the connecting groove on the upper side face of the precast concrete body, the lower end of the grouting hole is communicated with the connecting groove on the lower side face, and two ends of the connecting grooves on the upper side face and the lower side face of the precast concrete body are respectively communicated with the connecting grooves on the left side face and the right side face of the precast concrete body.
The manufacturing process of the wallboard in this embodiment is: manufacturing a steel bar framework, wherein the steel bar framework comprises transverse steel bars and longitudinal steel bars which are arranged in a crossed manner, a heat insulation material is preset in the steel bar framework, the transverse steel bars and the longitudinal steel bars are connected into inner holes of corresponding flexible cables in a penetrating manner, then the corresponding transverse steel bars and the corresponding longitudinal steel bars are bound together, in the second step, a mould 0 is arranged on the peripheries of the steel bar framework and the flexible cables, the connecting ends of the flexible cables are attached to the inner surface of the mould, the connecting ends of the flexible cables are perpendicular to the embedded ends of the flexible cables, prefabricated casting concrete is poured into the mould, the flexible connecting ends are immersed in the prefabricated casting concrete, in the third step, when the prefabricated concrete is not solidified, the mould is detached, the prefabricated casting concrete is not collapsed, the connecting ends of the flexible cables are pulled up from the corresponding side faces of the prefabricated concrete, and an anti-falling groove 11 is formed on the connecting side faces of the prefabricated concrete along with the pulling up of the connecting ends of the flexible cables. Precast concrete in this embodiment does not solidify the state and indicates concrete mixture state, and under this state, the concrete is not solidified completely, can be relaxed pull out in by the concrete with the link of flexible cable, but after tearing the mould down, the concrete is whole not to collapse yet. In this embodiment the anti-run out grooves will be present in the side end walls 8 and the groove walls 1-3 of the connecting grooves.
Example 2 of precast concrete panel is shown in fig. 8 to 15:
example 2 differs from example 1 in that the precast concrete slab in this example is a floor slab 2 horizontally arranged in use, and the floor slab has a rectangular structure, and the thickness direction of the floor slab is defined as the up-down direction, the width direction as the left-right direction, and the length direction as the front-rear direction. The flexible cables in the width direction of the precast concrete slab are arranged in pairs, and each pair of flexible cables comprises two flexible cables 3 which are arranged at intervals along the thickness direction of the wall plate.
The connecting side surface in the width direction of the floor slab is provided with a connecting groove which can be called as a floor slab connecting groove 2-1, the connecting side surface is composed of a groove wall of the connecting groove and side end walls positioned at two sides of the groove wall, one rope of the connecting end of each flexible rope penetrates out from the side end wall, the other rope penetrates out from the groove wall, when in use, two adjacent floor slabs are arranged in sequence from left to right, therefore, the flexible ropes at two ends in the width direction of the floor slab are used for realizing the connection of the two adjacent floor slabs, the flexible rope arrangement form in the width direction of the floor slab is communicated with the flexible rope arrangement form in the embodiment 1, and the detailed description is omitted.
Each flexible cable on two sides of the precast concrete plate in the length direction is of a triangular structure, one end of the precast concrete plate in the length direction is an A end, the other end of the precast concrete plate is a B end, the A end is provided with a cavity 2-4 extending along the width direction of the precast concrete plate, the connecting end of the flexible cable of the triangular structure extends into the cavity, and cable through holes 2-3 are formed in the cavity walls of two sides of the cavity in the thickness direction of the precast concrete plate; the end face of the end B is provided with a connecting groove, the connecting end of the flexible cable with the triangular structure is positioned on the outer side of the end face of the end B, one cable rope of the connecting end of the flexible cable with the triangular structure penetrates out from the groove wall, and the other cable rope penetrates out from the other side of the groove wall. For the end B, a U-shaped reeving groove 2-5 is formed in the groove wall.
Wherein, the A end is used for connecting with the side wall, and the B end is used for connecting with the middle wall.
The floor slab is manufactured as shown in fig. 13, and the manufacturing process of the floor slab is the same as that of the wall slab, and is not described in detail here.
The embodiment 1 of the precast concrete connection node is shown in fig. 16 to 19:
the precast concrete connection node comprises two wall panels 1 connected side by side, wherein the specific structure of each wall panel is the same as the wall panel described in the precast concrete panel embodiment 1 above, and thus the specific structure of the wall panel will not be described in detail herein.
The wallboard on the left side is arranged with the wallboard on the right side at interval.
The prefabricated concrete node further includes flexible cable-passing reinforcing bars 4-2 passing between the connecting ends of the corresponding cross-links, so that two flexible cable-passing reinforcing bars are provided at a corresponding cross-section, one of the flexible cable-passing reinforcing bars passing through the crossing position of the flexible cable at one side of the connecting groove, and the other of the flexible cable-passing reinforcing bars passing through the crossing position of the flexible cable at the other side of the connecting groove.
After the flexible cable is connected with the crossing position of the corresponding flexible cable in a penetrating way, post-cast concrete is poured between the two wallboards on the two side die in the thickness direction of the two wallboards, and the post-cast concrete is solidified to form a post-cast concrete body 6. And the post-cast concrete body and the connecting end 10 of the flexible cable, the flexible cable penetrating steel bar 4-2, the connecting side surface, the connecting groove on the connecting side surface and the anti-falling groove are cast into an integral structure.
In the embodiment, in order to realize the connection of adjacent wallboards in the front and rear directions, the wall board grouting holes 1-2 on the wallboards also need to be filled with the post-grouting concrete in the field, two shear wall board vertical additional inserted bars 4-3 are arranged in the post-grouting concrete, a steel bar stopper 7-1 is arranged in each grouting hole before grouting of the grouting holes, one end of each shear wall board vertical additional inserted bar 4-3 abuts against the corresponding steel bar stopper 7-1, each steel bar stopper can be a baffle, a steel bar positioning device 7 is arranged between each shear wall board vertical additional steel bar and the hole wall of each grouting hole, each steel bar positioning device can be two U-shaped steel bars which are arranged in a crossed manner, and the shear wall board vertical additional steel bars are inserted into the crossed positions of the two U-shaped steel bars. In fig. 17, the portion inside the upper dotted line box is an enlarged view of the portion corresponding to the lower dotted line box.
An embodiment 2 of the precast concrete connection node of the present invention is shown in fig. 20 to 21:
the precast concrete connection node in this embodiment comprises three precast concrete panels, one of which is a horizontally disposed floor panel 2 and the other two of which are vertically disposed wall panels 1.
The floor slab is the same as the floor slab described in embodiment 2 of the precast concrete panel described above and will not be described in detail, and the wall panel is the same as the wall panel described in embodiment 1 of the precast concrete panel described above and will not be described in detail.
The wallboard is the side wall, and the upper end of wallboard links to each other with the A end of floor, and is specific: the connecting ends of one row of flexible cables of the wallboard penetrate through the corresponding cable penetrating holes 2-3 along the vertical direction and are arranged in a cross mode with the connecting ends of the corresponding flexible cables of the floor slab, and the connecting ends of the flexible cables of the floor slab are perpendicular to the connecting pairs of the flexible cables of the wallboard.
The connecting ends of the other row of flexible cables of the wallboard penetrate through the corresponding cable penetrating holes along the vertical direction and then are positioned in the cavity 2-4 of the floor slab, then the flexible cables penetrate through the reinforcing steel bars 4-2, and then corresponding cast-in-place operation is carried out. The connection form of the floor and the wall board is a simulation hinged support.
An embodiment 3 of the precast concrete connection node of the invention is shown in fig. 22 to 26:
the precast concrete connection node comprises three precast concrete plates, wherein one precast concrete plate is a horizontally arranged rectangular floor slab 2, the other two precast concrete plates are wall plates 1 vertically arranged on the upper side and the lower side of the floor slab, one end of the floor slab in the length direction is an end A, the other end of the floor slab is an end B, the end A is provided with a cavity extending along the width direction of the precast concrete plates, the connecting end of a flexible cable of a triangular structure extends into the cavity, and cable through holes 2-5 are formed in the cavity walls of the two sides of the cavity along the thickness direction of the floor slab; the flexible cables of the wall board are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall board, the connecting side surface is formed by a groove wall of the wall board connecting groove 1-1 and side end walls 8 which are positioned at two sides of the groove wall, one cable rope of the connecting end of each flexible cable penetrates out from the side end walls, the other cable rope penetrates out from the groove wall, one flexible cable of each pair of flexible cables is defined as a first flexible cable, the other flexible cable is a second flexible cable, the second flexible cable is positioned at one side far away from the floor slab, the two wall boards are arranged at the upper side and the lower side of the A end, the connecting ends of the first flexible cables of the two wall boards penetrate through corresponding cable penetrating holes along the vertical direction and then are arranged in a cavity in a crossed mode, the connecting ends of the second flexible cables of the two wallboards penetrate through the corresponding cable penetrating holes in the vertical direction and then are arranged in a crossed mode in the cavity, the corner tip positions of the flexible cables of the triangular structures and the connecting ends of the second flexible cables are arranged in a crossed mode, the precast concrete connecting node comprises second flexible cable penetrating reinforcing steel bars penetrating the crossing positions of the flexible cables of the triangular structures and the second flexible cables, the precast concrete connecting node further comprises first flexible cable penetrating reinforcing steel bars penetrating the crossing positions of the first flexible cables, and the post-cast concrete body, the connecting ends of the first flexible cables, the second flexible cables and the flexible cables of the triangular structures, the first flexible cable penetrating reinforcing steel bars and the second flexible cable penetrating reinforcing steel bars are cast into an integral structure. The connection form of the floor and the wall board is a simulation hinged support.
The floor is the same as described above for precast concrete panel example 2 and the wall panel is the same as described above for precast concrete panel example 1 and will not be described in detail. In fig. 25, the portion in the right dashed line box is an enlarged view of the structure in the left corresponding dashed line box.
in this embodiment, the precast concrete connected node includes four precast concrete boards, wherein two precast concrete boards are the floor 2 of the rectangle structure of horizontal arrangement, two floor left and right sides are arranged, two other precast concrete boards are the wallboard 1 of vertical arrangement both sides about the floor, floor length direction's one end is the A end, the other end is the B end, be provided with floor connecting groove on the B end terminal surface, the link of the flexible cable of triangle-shaped structure is located the outside of B end terminal surface, one of them rope of the link of the flexible cable of triangle-shaped structure is worn out by the recess wall of floor connecting groove, another rope is worn out by the other one side of recess wall.
The flexible cables of the wall board are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall board, the connecting side surface is formed by the groove wall of the connecting groove of the wall board and the side end walls positioned at the two sides of the groove wall, one cable rope of the connecting end of each flexible cable penetrates out from the side end wall, the other rope penetrates out of the groove wall to define one flexible rope in each pair as a first flexible rope 13, the other flexible cable is a second flexible cable 14, the second flexible cable is positioned on the right side of the first flexible cable, two wall boards are arranged on the upper side and the lower side of the B end, the connecting ends of the first flexible cables of the two wall boards penetrate through the groove side wall of the corresponding floor slab connecting groove along the vertical direction and are arranged in a crossed mode in the connecting groove on the left side, the connecting ends of the second flexible cables of the two wall boards penetrate through the groove side wall of the corresponding floor slab connecting groove along the vertical direction and are arranged in a crossed mode in the connecting groove on the right side, the flexible cable defining the triangular structure of the left floor slab is a left flexible cable 15, the flexible cable defining the triangular structure of the right floor slab is a right flexible cable 16, the angular point position of the left flexible cable is arranged in a crossed mode with the connecting end of the second flexible cable, the angular point position of the right flexible cable is arranged in a crossed mode with the connecting end of the first flexible cable, the prefabricated concrete connecting node comprises a second flexible cable connecting reinforcing steel bar which penetrates through the crossing position of the left flexible cable and the second flexible cable, the prefabricated concrete connecting node further comprises a first flexible cable crossing position of the right flexible cable, the first flexible cable connecting steel bar, and the second flexible cable connecting steel bar, and the flexible steel bar are poured into a whole, and the flexible cable connecting steel bar, and the flexible steel bar is poured into a whole. The floor connecting grooves of the two floors and the wallboard connecting grooves of the two wallboards jointly enclose a pouring cavity, and the connecting ends of the first flexible cables and the second flexible cables on the wallboards and the connecting ends of the left flexible cables and the right flexible cables on the floors are located in the pouring cavity.
The floor is the same as described above for precast concrete panel example 2 and the wall panel is the same as described above for precast concrete panel example 1 and will not be described in detail. In fig. 30, the portion inside the right dashed line box is an enlarged view of the portion of the left corresponding dashed line box,
compared with the prior art, the invention has the following advantages:
(1) Arranging a plurality of grouting holes in the precast concrete wallboard to facilitate later-stage pouring and joint bars;
(2) The AB end is arranged on the precast concrete floor, so that the precast concrete floor can be effectively connected with a middle wall or a side wall according to the condition of a construction site;
(3) The half-moon-shaped grooves are formed in the periphery of the precast concrete floor slab, so that the shearing resistance of the node can be effectively improved;
(4) The annular flexible cable can play a role in resisting transverse cracks of a post-pouring area besides force transmission;
(5) The high-strength flexible cables arranged along the thickness direction of the floor slab can be conveniently and quickly fixed with the high-strength flexible annular cables extending out of the upper wallboard and the lower wallboard together through the dowel bars;
(6) The natural rough surface formed in the process of hooking the external soft rope, namely the anti-falling groove, can improve the bonding firmness of the wallboard and the subsequent process;
(7) The annular high-strength flexible annular cable material anchored on the hidden column or the hidden beam can effectively play a role in eliminating the bolt and prevent the cable material from sliding and peeling off;
(8) The common steel bars inserted into the precast concrete components are provided with limiting devices which are annular and used for fixing the positions of the steel bars, and the plugs at the lower parts are used for controlling the grouting depth;
(9) The common steel bars penetrating through the lower wall plate, the floor plate and the upper wall plate are inserted into the precast concrete member, so that the anti-seismic performance of the structure can be effectively improved.
When the concrete is initially set but is not completely hardened, the connecting end of the flexible cable is pulled out from the side surface of the prefabricated part to be in a natural straightening shape, so that no rib is formed when the member is manufactured; after the connecting end of the flexible cable is hooked out from the surface of the member, a natural rough surface, namely an anti-drop groove is formed, so that the force transfer effect between the interfaces of new and old concrete is increased; the prefabricated concrete members are fixed at the appointed positions in the assembling process, the annular cable material rings in the adjacent members are buckled and lapped with each other, then the reinforcing steel bars penetrate through the longitudinal lapping connection ring belts formed by the annular cable materials of the adjacent members and are fixed, finally the side molds are arranged on site, post-pouring materials are poured in the splicing cavities formed by the side molds and the side edges of the prefabricated members, and the adjacent members are connected into a whole. According to the prefabricated concrete wallboard with the high-strength flexible annular cable material, the floor slab and the joint connection method of the prefabricated concrete wallboard with the high-strength flexible annular cable material, ribs can not be formed on four sides of a component in the component production stage, and the production efficiency is accelerated; in the assembling stage, efficient assembling can be realized; in the aspect of stress, the stress function of transmitting the loads in the plane and transmitting the loads out of the plane is realized, so that the structure has good bearing capacity and anti-seismic performance.
An embodiment of a method for manufacturing a precast concrete slab is shown in fig. 1 to 15, and the precast concrete slab in the embodiment may be a floor slab or a wallboard.
The method comprises the following steps: firstly, manufacturing a steel reinforcement framework, wherein the steel reinforcement framework comprises transverse steel bars and longitudinal steel bars which are arranged in a crossed mode, the transverse steel bars and the longitudinal steel bars are connected into inner holes of corresponding flexible cables in a penetrating mode, then the corresponding transverse steel bars and the corresponding longitudinal steel bars are bound together, secondly, supporting a mould on the periphery of the steel reinforcement framework and the flexible cables, connecting ends of the flexible cables are attached to the inner surface of the mould, pouring precast concrete into the mould, soaking the flexible connecting ends in the precast concrete, thirdly, when the precast concrete is not solidified, detaching the mould, enabling the precast concrete not to collapse, pulling up the connecting ends of the flexible cables from corresponding sides of the precast concrete, and forming anti-falling grooves on the connecting sides of the precast concrete along with the pulling up of the connecting ends of the flexible cables.
In the above description of the present specification, the terms "fixed," "mounted," "connected," or "connected," and the like, are to be construed broadly unless otherwise expressly specified or limited. For example, with the term "coupled", it can be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship. Therefore, unless the specification explicitly defines otherwise, those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used herein, such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "lateral," "clockwise," or "counterclockwise," etc., indicate that such terms are based on the orientations and positional relationships illustrated in the drawings of the present specification, and are intended merely to facilitate explanation of the invention and to simplify the description, but do not indicate or imply that the device or element involved must have the particular orientation, be constructed and operated in the particular orientation, and therefore such terms are not to be understood or interpreted as limiting the scope of the present invention.
In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. Precast concrete board, including framework of steel reinforcement and the precast concrete body who pours into overall structure with framework of steel reinforcement, precast concrete body's the side that corresponds is the connection side, has the connecting groove who is used for concrete post-cast on the connection side, precast concrete board still includes a plurality of flexible cables along connecting side length direction interval arrangement, its characterized in that: the flexible cable is of an annular structure, one end of the flexible cable is an embedded end of the prefabricated concrete body poured into the integral structure, the other end of the flexible cable is a connecting end, the embedded end is connected to the corresponding steel bars of the steel bar framework in a sleeved mode, and an anti-falling groove formed when the prefabricated concrete body is not solidified due to the fact that the flexible end is pulled out is formed in the side wall of the connecting side face.
2. The precast concrete panel according to claim 1, characterized in that: the precast concrete board is a wallboard, the flexible cables are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wallboard, the connecting side surface is formed by a groove wall of the connecting groove and side end walls positioned on two sides of the groove wall, one cable rope of the connecting end of each flexible cable penetrates out from the side end wall, and the other cable rope penetrates out from the groove wall.
3. The precast concrete panel according to claim 1, characterized in that: the precast concrete slab is a floor slab with a rectangular structure, the flexible cables on two sides of the precast concrete slab in the width direction are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals in the thickness direction of the wall slab, the connecting side surface consists of a groove wall of the connecting groove and side end walls positioned on two sides of the groove wall, one cable rope of the connecting end of each flexible cable penetrates out from the side end wall, and the other cable rope penetrates out from the groove wall; each flexible cable on two sides of the precast concrete slab in the length direction is of a triangular structure.
4. The precast concrete panel according to claim 3, wherein: one end of the precast concrete plate in the length direction is an A end, the other end of the precast concrete plate is a B end, the A end is provided with a cavity extending along the width direction of the precast concrete plate, the connecting end of a flexible cable of a triangular structure extends into the cavity, and cable penetrating holes are formed in the cavity walls of two sides of the cavity along the thickness direction of the precast concrete plate; the end face of the end B is provided with the connecting groove, the connecting end of the flexible cable of the triangular structure is positioned on the outer side of the end face of the end B, one cable rope of the connecting end of the flexible cable of the triangular structure penetrates out of the groove wall, and the other cable rope penetrates out of the groove wall.
5. Precast concrete connected node, including two at least precast concrete boards, precast concrete board includes framework of steel reinforcement and pours into overall structure's the precast concrete body with framework of steel reinforcement, and the corresponding side of precast concrete body has the connecting groove who is used for the concrete post-cast for connecting the side on connecting the side, and precast concrete board still includes a plurality of flexible cable, its characterized in that along connecting side length direction interval arrangement: the flexible cable is of an annular structure, one end of the flexible cable is an embedded end which is poured into an integral structure with the precast concrete body, the other end of the flexible cable is a connecting end, the embedded end is sleeved on a corresponding steel bar of the steel bar framework, an anti-falling groove which is formed when the precast concrete body is not solidified due to the fact that the flexible end is pulled out is arranged on the side wall of the connecting side face, and a post-cast concrete body is poured into the connecting groove and the anti-falling groove.
6. The precast concrete connection node of claim 5, wherein: the precast concrete connection node comprises two precast concrete plates which are wall plates, flexible cables of the wall plates are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall plates, the connection side surface is formed by a groove wall of a connection groove and side end walls positioned on two sides of the groove wall, one cable rope of the connection end of each flexible cable penetrates out from the side end wall, the other cable rope penetrates out from the groove wall, the connection end of the flexible cable on one wall plate is arranged in a crossed mode with the connection end of the flexible cable on the other wall plate, the precast concrete node further comprises a flexible cable connection reinforcing steel bar penetrating between the connection ends corresponding to the flexible cables in crossed mode, and the post-cast concrete body is cast into an integral structure with the connection ends of the flexible cables and the flexible cable connection reinforcing steel bar.
7. The precast concrete connection node of claim 5, wherein: the precast concrete connection node comprises three precast concrete plates, wherein one precast concrete plate is a horizontally arranged rectangular floor slab, the other two precast concrete plates are wall plates vertically arranged on the upper side and the lower side of the floor slab, one end of the floor slab in the length direction is an end A, the other end of the floor slab is an end B, the end A is provided with a cavity extending along the width direction of the precast concrete plates, the connecting end of a flexible cable of a triangular structure extends into the cavity, and cable through holes are formed in the cavity walls of the two sides of the cavity along the thickness direction of the precast concrete plates; the flexible cables of the wall board are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall board, the connecting side is composed of a groove wall of a connecting groove and side end walls positioned at two sides of the groove wall, one cable of the connecting end of each flexible cable penetrates through the side end walls, the other cable penetrates through the groove wall, one flexible cable of each pair of flexible cables is defined as a first flexible cable, the other flexible cable is defined as a second flexible cable, the second flexible cable is positioned at one side far away from the floor, the two wall boards are arranged at the upper side and the lower side of an A end, the connecting ends of the first flexible cables of the two wall boards are arranged in a crossed mode in a cavity after penetrating through corresponding cable penetrating holes in the upper direction and the lower direction, the connecting ends of the second flexible cables of the two wall boards are arranged in a crossed mode after penetrating through corresponding cable penetrating holes in the upper direction, the tip positions of the flexible cables of the triangular structure are arranged in a crossed mode with the connecting ends of the second flexible cables of the triangular structure, the concrete connecting nodes comprise the flexible cables which penetrate through the triangular structure and concrete connecting ends of the flexible cables, and the connecting nodes of the second flexible cables which penetrate into the reinforcing steel bars, and the flexible cables, and the connecting ends of the triangular structure are arranged in a pouring steel bar.
8. The precast concrete connection node of claim 5, wherein: the precast concrete connection node comprises four precast concrete plates, wherein two precast concrete plates are horizontally arranged rectangular floors, two floors are arranged on the left and right, the other two precast concrete plates are vertically arranged wall plates on the upper side and the lower side of the floors, one end of the floor plate in the length direction is an end A, the other end of the floor plate is an end B, the end surface of the end B is provided with a connection groove, the connection end of a flexible cable of a triangular structure is positioned on the outer side of the end surface of the end B, one cable rope of the connection end of the flexible cable of the triangular structure penetrates out of the groove wall, the other cable rope penetrates out of the groove wall, the flexible cables of the wall plates are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wall plate, the connection side surface is formed by the groove wall of the connection groove and the side surface end walls positioned on the two sides of the groove wall, one cable rope of the connection end of each flexible cable penetrates out of the side surface end wall, the other rope penetrates through the groove wall to define that one flexible rope in each pair of flexible ropes is a first flexible rope, the other flexible rope is a second flexible rope, the second flexible rope is positioned on the right side of the first flexible rope, the two wall plates are arranged on the upper side and the lower side of the end B, the connecting ends of the first flexible ropes of the two wall plates penetrate through the corresponding connecting groove side wall along the vertical direction and are arranged in a crossed manner in the connecting groove on the left side, the connecting ends of the second flexible ropes of the two wall plates penetrate through the corresponding connecting groove side wall along the vertical direction and are arranged in a crossed manner in the connecting groove on the right side, the flexible ropes of the triangular structure of the left floor plate are defined as left flexible ropes, the flexible ropes of the triangular structure of the right floor plate are right flexible ropes, the angle tip positions of the left flexible ropes are arranged in a crossed manner with the connecting ends of the second flexible ropes, the angle tip positions of the right flexible ropes are arranged in a crossed manner with the connecting ends of the first flexible ropes, prefabricated concrete connected node is including wearing the second flexible cable steel bar of wearing in the crossing position of left side flexible cable and second flexible cable, and prefabricated concrete connected node still includes wearing the first flexible cable steel bar of wearing in the crossing position of right side flexible cable and first flexible cable, and the integral structure is pour into to the post-cast concrete body and the link and first flexible cable steel bar, the second flexible cable steel bar of wearing of the link of first flexible cable, second flexible cable, left side flexible cable and right side flexible cable, second flexible cable steel bar.
9. The precast concrete connection node of claim 5, wherein: and vertical additional joint bars are arranged in the post-cast concrete body.
10. A precast concrete plate manufacturing method of a precast concrete plate according to any one of claims 1 to 4, characterized in that: the method comprises the following steps: firstly, manufacturing a steel reinforcement framework, wherein the steel reinforcement framework comprises transverse steel bars and longitudinal steel bars which are arranged in a crossed mode, the transverse steel bars and the longitudinal steel bars are connected into inner holes of corresponding flexible cables in a penetrating mode, then the corresponding transverse steel bars and the corresponding longitudinal steel bars are bound together, secondly, supporting a mould on the periphery of the steel reinforcement framework and the flexible cables, connecting ends of the flexible cables are attached to the inner surface of the mould, pouring precast concrete into the mould, soaking the flexible connecting ends in the precast concrete, thirdly, when the precast concrete is not solidified, detaching the mould, enabling the precast concrete not to collapse, pulling up the connecting ends of the flexible cables from corresponding sides of the precast concrete, and forming anti-falling grooves on the connecting sides of the precast concrete along with the pulling up of the connecting ends of the flexible cables.
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| CN104947799A (en) * | 2015-06-19 | 2015-09-30 | 中民筑友有限公司 | Soft cable connection piece, prefabricated member and wallboard |
| CN205444571U (en) * | 2016-03-11 | 2016-08-10 | 中民筑友有限公司 | Wallboard connected node |
| CN212715480U (en) * | 2020-07-02 | 2021-03-16 | 中国电建集团贵阳勘测设计研究院有限公司 | Soft cable connecting structure |
| CN112211321A (en) * | 2020-10-15 | 2021-01-12 | 上海建工五建集团有限公司 | Novel precast concrete wallboard connecting structure and construction method thereof |
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