CN115419165B - Precast concrete connecting node, precast concrete slab and manufacturing method thereof - Google Patents
Precast concrete connecting node, precast concrete slab and manufacturing method thereof Download PDFInfo
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- CN115419165B CN115419165B CN202210816203.2A CN202210816203A CN115419165B CN 115419165 B CN115419165 B CN 115419165B CN 202210816203 A CN202210816203 A CN 202210816203A CN 115419165 B CN115419165 B CN 115419165B
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 210
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 230000002787 reinforcement Effects 0.000 claims abstract description 58
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 239000004567 concrete Substances 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims description 54
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 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
- 230000009467 reduction 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
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
The invention relates to a precast concrete connection 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 poured 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 of concrete is formed on the connection side surface to enable the connection side surface to form 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 connection side surface, the flexible cables are of a ring-shaped structure, one end of each flexible cable is an embedded end which is poured into the integral structure with the precast concrete body, the other end of each flexible cable is a connection end, the embedded end is sleeved on the corresponding steel reinforcement of the steel reinforcement framework, and an anti-drop groove formed by pulling out of the flexible ends when the precast concrete body is not solidified is arranged on the side wall of the connection side surface.
Description
Technical Field
The invention relates to the field of assembled buildings, in particular to a precast concrete connecting node based on a flexible rope, a precast concrete slab and a manufacturing method thereof.
Background
With the development of the economic society in China, the requirements on energy conservation, environmental protection, low noise and the like are increasingly strict, and meanwhile, the labor cost is also rapidly increased, so that the development of the building industry is limited to a certain extent, and the factors promote the reform 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 assembled building has the advantages of energy conservation and emission reduction, environmental protection, industrialized production, rapid construction, shortened 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 in the current stage of China. However, most of existing fabricated buildings are connected by adopting a reinforcement-out mode, so that the practical construction process is very inconvenient, and the consumption of reinforcing steel bars is also large.
The connecting method is widely applied to some foreign countries, but is slow to popularize in China, and the connecting method is characterized in that the high-strength flexible annular cable is pre-buried in the precast concrete member, the precast concrete member is placed at a designated lap joint position in the actual assembly process, a joint with a certain interval is reserved between the adjacent precast concrete members, the overlapped cable is connected through the dowel bars, and post-cast materials are injected into the joint positions to form the post-cast strip.
For example, chinese patent CN111910794a discloses a prefabricated wall structure using flexible cable connection, the prefabricated wall structure includes a prefabricated wall, the attribute connection side of the prefabricated wall is a groove structure, the vertical connection side of the groove structure is alternately provided with flexible cables extending to the groove structure, i.e. a flexible cable and a reinforcing member, when two adjacent prefabricated walls are connected, the flexible cables on two sides are overlapped and then pass through vertical dowel bars to connect, and concrete is poured in the groove structure to form a core column.
The traditional prefabricated wall structure based on the flexible cable can simply realize the connection of the wallboard and the floor slab or the wallboard and the wallboard, but can not truly realize the connection of one floor slab and two wallboards; in addition, in order to improve the connection strength of post-cast concrete and the groove structure, the surface of the groove structure on the vertical connection side surface is required to be subjected to roughening treatment to form a rough surface, and the rough surface forming mode in the prior art is time-consuming and labor-consuming; the flexible cable and the reinforcement cage in the prefabricated wall structure need to be bound and embedded, so that the labor intensity is high, and the connection strength of the binding cutting operation cannot be ensured.
Disclosure of Invention
The invention aims to provide a precast concrete board which solves the technical problems that in the prior art, the connection structure of a flexible rope and a steel reinforcement framework is complex, and rough surface manufacturing is time-consuming and labor-consuming; the invention also aims to provide a precast concrete connecting node using the precast concrete panel; the invention also aims at providing a manufacturing method of the precast concrete board.
In order to solve the technical problems, the technical scheme of the precast concrete board is as follows:
Precast concrete board, including the framework of steel reinforcement and pour into integrated configuration's precast concrete body with the framework of steel reinforcement, the corresponding side of precast concrete body is the connection side, has the spread groove that is used for concrete post-pouring on the connection side, precast concrete board still includes a plurality of flexible ropes of following connection side length direction interval arrangement, and the flexible rope is cyclic annular structure, the one end of flexible rope for with precast concrete body pours into integrated configuration's pre-buried end, the other end of flexible rope is the link, pre-buried pot head links to the corresponding reinforcing bar of framework of steel reinforcement, is provided with the anticreep recess that forms because of flexible end pulls out when precast concrete body does not solidify on the lateral wall of connection side.
The precast concrete board is the wallboard, and the flexible rope is arranged in pairs, and every flexible rope of pair all includes two along wallboard thickness direction interval arrangement the flexible rope, and the connection side comprises the recess wall of connecting the recess and the side end wall that is located the recess wall both sides, and one rope of the link of each flexible rope is worn out by the side end wall, and another rope is worn out by the recess wall.
The precast concrete slab is a floor slab with a rectangular structure, flexible ropes on two sides of the precast concrete slab in the width direction are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboard, the connecting side surface consists of a groove wall of a connecting groove and side surface end walls positioned on two sides of the groove wall, one rope at the connecting end of each flexible rope penetrates out from the side surface end wall, and the other rope penetrates out from the groove wall; each flexible rope on two sides of the length direction of the precast concrete slab is in a triangular structure.
One end of the precast concrete plate in the length direction is an end A, the other end of the precast concrete plate in the length direction is an end B, the end A is provided with a cavity extending along the width direction of the precast concrete plate, the connecting end of the flexible rope of the triangular structure extends into the cavity, and rope penetrating holes are formed in the cavity walls on two sides of the cavity along the thickness direction of the precast concrete plate; the connecting groove is formed in the end face of the end B, the connecting end of the flexible rope of the triangular structure is located on the outer side of the end face of the end B, one rope of the connecting end of the flexible rope of the triangular structure penetrates out of the groove wall, and the other rope penetrates out of the groove wall.
The technical scheme of the precast concrete connecting node is as follows:
The precast concrete connected node comprises at least two precast concrete boards, wherein each precast concrete board comprises a reinforcement cage and a precast concrete body which is poured into an integral structure with the reinforcement cage, the corresponding side surface of each precast concrete body is a connecting side surface, connecting grooves for post-pouring concrete are formed in the connecting side surface, the precast concrete boards further comprise a plurality of flexible ropes which are arranged at intervals along the length direction of the connecting side surface, each flexible rope is of an annular structure, one end of each flexible rope is an embedded end which is poured into the integral structure with the precast concrete body, the other end of each flexible rope is a connecting end, the embedded ends are sleeved on the corresponding reinforcing steel bars of the reinforcement cage, anti-falling grooves formed by pulling out the flexible ends when the precast concrete body is not solidified are formed in the side walls of the connecting side surfaces, and post-pouring concrete bodies are poured in the connecting grooves and the anti-falling grooves.
The precast concrete connected node comprises two precast concrete slabs, the precast concrete slabs are wallboards, flexible ropes of the wallboards are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboards, a connecting side face is formed by a groove wall of a connecting groove and side face end walls positioned on two sides of the groove wall, one rope of the connecting end of each flexible rope penetrates out of the side face end wall, the other rope penetrates out of the groove wall, the connecting end of one flexible rope on one wallboard and the connecting end of the flexible rope on the other wallboard are arranged in a crossing manner, the precast concrete node further comprises a flexible rope penetrating reinforcing steel bar penetrating and connecting between the connecting ends of the corresponding crossed connection, and the connecting ends of the rear casting concrete body and the flexible ropes and the flexible rope penetrating reinforcing steel bar are cast into an integral structure.
The precast concrete connecting node comprises three precast concrete slabs, wherein one precast concrete slab is a floor slab with a rectangular structure and arranged horizontally, the other two precast concrete slabs are wall boards 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 A end, the other end of the floor slab is a B end, the A end is provided with a cavity extending along the width direction of the precast concrete slab, the connecting end of a flexible rope with a triangular structure extends into the cavity, and rope penetrating holes are formed in the cavity walls on the two sides of the cavity along the thickness direction of the precast concrete slab; the flexible ropes of the wallboards are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboards, the connecting side surface is formed by a groove wall of a connecting groove and side end walls which are positioned at two sides of the groove wall, one rope of the connecting ends of each flexible rope is penetrated out of the side end walls, the other rope is penetrated out of the groove wall, one flexible rope in each pair of flexible ropes is defined to be a first flexible rope, the other flexible rope is a second flexible rope, the second flexible rope is positioned at one side far away from a floor slab, the two wallboards are arranged at the upper side and the lower side of the end A, the connecting ends of the first flexible ropes of the two wallboards penetrate through corresponding rope penetrating holes along the upper and lower directions and then are crossed in the cavity, the connecting ends of the second flexible ropes of the two wallboards penetrate through corresponding rope penetrating holes along the upper and lower directions, the corner point of the flexible ropes of the triangle structure and the connecting ends of the second flexible ropes are crossed in the cavity, the connecting node of the concrete is formed by crossing the flexible rope of the triangle structure and the second flexible rope penetrating through the first flexible rope and the second flexible rope, the second flexible rope penetrating through the precast reinforcement steel bar structure is formed by crossing the first flexible rope and the second flexible rope penetrating through the first flexible rope and the precast reinforcement structure.
The precast concrete connection node comprises four precast concrete slabs, wherein two precast concrete slabs are horizontally arranged rectangular structural floorslabs, two floorslabs are arranged left and right, the other two precast concrete slabs are vertical wallboards arranged on the upper side and the lower side of the floorslabs, one end in the length direction of the floorslabs is an A end, the other end is a B end, the end face of the B end is provided with a connection groove, the connection end of a flexible rope of a triangular structure is positioned on the outer side of the end face of the B end, one rope of the connection end of the flexible rope of the triangular structure is penetrated out of the groove wall, the other rope of the flexible rope of the triangular structure is penetrated out of the groove wall, the flexible ropes of the wallboards are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboards, the connection side face is composed of the groove wall of the connection groove and side end walls positioned on the two sides of the groove wall, one rope of the connection end of each flexible rope is penetrated out of the side end walls, the other rope is penetrated out of the groove wall, one of the ropes in each pair is defined as a first rope, the other rope is defined as a second rope, the second rope is positioned on the right side of the first rope, the two wallboards are arranged on the upper side and the lower side of the end B, the connecting ends of the first ropes of the two wallboards penetrate through the corresponding connecting groove side wall along the upper and lower direction and then are arranged in the left connecting groove in a crossing manner, the connecting ends of the second ropes of the two wallboards penetrate through the corresponding connecting groove side wall along the upper and lower direction and then are arranged in the right connecting groove in a crossing manner, the ropes of the triangular structure of the right floor slab are defined as left ropes, the ropes of the triangular structure of the right floor slab are right ropes, the corner tip positions of the left ropes are arranged in a crossing manner with the connecting ends of the second ropes, the angle tip position of the right flexible rope is crossed with the connecting end of the first flexible rope, the precast concrete connecting node comprises a second flexible rope penetrating reinforcing steel bar penetrating and connecting at the crossing position of the left flexible rope and the second flexible rope, the precast concrete connecting node further comprises a first flexible rope penetrating and connecting reinforcing steel bar penetrating and connecting at the crossing position of the right flexible rope and the first flexible rope, and the rear cast concrete body is cast into an integral structure with the connecting ends of the first flexible rope, the second flexible rope, the left flexible rope and the right flexible rope, the first flexible rope penetrating and connecting reinforcing steel bar and the second flexible rope penetrating and connecting reinforcing steel bar.
Vertical additional dowel bars are arranged in the post-cast concrete body.
The technical scheme of the precast concrete board manufacturing method in the invention is as follows: the method comprises the following steps: firstly, manufacturing a reinforcement cage, wherein the reinforcement cage comprises transverse reinforcement and longitudinal reinforcement which are arranged in a crossing way, the transverse reinforcement and the longitudinal reinforcement are connected in corresponding inner holes of flexible ropes in a penetrating way, then the corresponding transverse reinforcement and the corresponding longitudinal reinforcement are bound together, secondly, supporting a mould at the periphery of the reinforcement cage and the flexible ropes, attaching the connecting end of the flexible ropes to the inner surface of the mould, pouring precast concrete into the mould, immersing the flexible connecting end in the precast concrete, thirdly, removing the mould when the precast concrete is not solidified, preventing the precast concrete from collapsing, pulling up the connecting end of the flexible ropes from the corresponding side surface of the precast concrete, and forming an anti-drop groove on the connecting side surface of the precast concrete along with the pulling up of the connecting end of the flexible ropes.
The beneficial effects of the invention are as follows: according to the invention, the flexible rope is of an annular structure, so that the flexible rope can be sleeved on the corresponding steel bars of the steel bar framework, the connection strength between the flexible rope and the steel bar framework can be realized without binding, the connection end of the flexible rope is attached to the inner wall of the mould in the process of manufacturing the precast concrete slab, the connection end of the flexible rope is immersed in the precast concrete, when the precast concrete is not completely solidified, the mould is removed, the connection end of the flexible rope is pulled up from the corresponding side surface of the precast concrete, and along with the pulling up of the connection end of the flexible rope, the anti-drop groove is formed on the connection side surface of the precast concrete, so that the connection strength between the precast concrete body and the post-cast concrete body can be improved by the anti-drop groove.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description when 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 example 1 of the precast concrete panel of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a section B-B of FIG. 1;
Fig. 4 is a schematic diagram illustrating the cooperation of the flexible cable and the reinforcement cage in fig. 1;
FIG. 5 is a schematic diagram showing the cooperation of the precast concrete body and the mold in example 1;
FIG. 6 is a schematic view of the flexible cord of FIG. 1 mated with a coupling groove and an anti-slip groove;
FIG. 7 is a perspective view of FIG. 1;
FIG. 8 is a schematic structural view of example 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 section D-D of FIG. 8;
FIG. 11 is a section E-E of FIG. 8;
FIG. 12 is a section F-F of FIG. 8;
Fig. 13 is a schematic view showing the cooperation of triangular flexible cables and a reinforcement cage in example 2 of a precast concrete panel;
FIG. 14 is a schematic view showing the cooperation of the precast concrete body and the mold in example 2;
Fig. 15 is a perspective view of fig. 8;
FIG. 16 is a schematic view showing the structure of example 1 of the precast concrete attachment node of the present invention;
FIG. 17 is a section G-G of FIG. 16;
FIG. 18 is a schematic view of the mating of the shear plate vertical attachment rebar and grout holes of embodiment 1 of the precast concrete connection node of the present invention;
FIG. 19 is a section M-M of FIG. 18;
FIG. 20 is a schematic structural view of example 2 of the precast concrete segment according to the present invention;
FIG. 21 is an enlarged view at Z in FIG. 20;
FIG. 22 is a schematic view showing the structure of example 3 of the precast concrete node of the present invention;
FIG. 23 is an elevation view of example 3 of a precast concrete node of the present invention;
FIG. 24 is a section H-H through FIG. 22;
FIG. 25 is a section I-I view of FIG. 23;
Fig. 26 is a perspective view of fig. 22;
FIG. 27 is a schematic view showing the structure of example 4 of the precast concrete node of the present invention;
FIG. 28 is an elevation view of example 4 of a precast concrete node of the present invention;
FIG. 29 is a J-J section view of FIG. 27;
FIG. 30 is a cross-sectional view of K-K of FIG. 28;
Fig. 31 is a perspective view of fig. 27;
Reference numerals illustrate: 0. a mold; 1. a wallboard; 1-1, wallboard connecting grooves; 1-2, grouting holes of the wallboard; 1-3, groove walls; 2. a floor slab; 2-1, floor slab connecting grooves; 2-2, grouting holes of the floor slab; 2-3, threading the holes; 2-4, cavity; 2-5, threading the rope groove; 3. a flexible cord; 4. a reinforcement cage; 4-1, normal reinforcement inside the component; 4-2, connecting the flexible cable with the steel bars; 4-3, vertically attaching dowel bars to the shear wall plates; 5. a thermal insulation material; 6. post-pouring a concrete body; 7-1, a steel bar limiter; 7-2, plugs; 8. side end walls; 9. embedding an end; 10. a connection end; 11. an anti-drop groove; 13. a first flexible cord; 14. a second flexible cord; 15. left side flexible cord; 16. right side flexible cord.
Detailed Description
In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended 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.
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 board 1 in this embodiment is a wall board that stands when using, and it includes framework of steel reinforcement 4 and pours into the precast concrete body of overall structure with the framework of steel reinforcement, and item 4-1 in the figure represents the normal arrangement of reinforcement inside the component of framework of steel reinforcement, and the intermediate position of precast concrete body still has pre-buried insulation 5. The four sides of the precast concrete body are connecting sides, each connecting side is provided with a connecting groove for post-pouring concrete, the connecting grooves on the wallboard can be called as wallboard connecting grooves 1-1, and the cross section of each connecting groove is of a semicircular structure.
The height direction of the precast concrete slab is defined as the up-down direction, the width direction is the left-right direction, the thickness direction is the front-back direction, and then the up-down side surface and the left-right side surface of the precast concrete body are both connecting side surfaces. The connecting grooves on the upper side and the lower side of the precast concrete body extend along the left-right direction, and the connecting grooves on the left side and the right side of the precast concrete body extend along the up-down direction.
Each connecting side is provided with a plurality of flexible cables 3 which are arranged at intervals along the length direction of the corresponding connecting side, the flexible cables are annular structures which are connected in a circumferential closed mode, and the flexible cables in the embodiment are made of steel stranded wires.
One end of the flexible rope 3 is an embedded end 9 which is poured into an integral structure with the precast concrete body, the other end of the flexible rope is a connecting end 10, the embedded end 9 is sleeved on a corresponding steel bar of the steel bar framework, and an anti-drop groove 11 which is formed by pulling out the connecting end of the flexible rope when the precast concrete is not solidified is arranged on the side wall of the connecting side face.
In the embodiment, at the corresponding section of the precast concrete slab, the flexible ropes are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboard, the connecting side surface is composed of groove walls 1-3 of the connecting groove and side end walls 8 positioned at two sides of the groove walls, one rope of the connecting end of each flexible rope penetrates out from the side end wall, and the other rope penetrates out from the groove wall.
The prefabricated concrete body is internally provided with three grouting holes which are arranged at intervals along the width direction, the grouting holes on the wallboard can be called as wallboard grouting holes 1-2, the axes of the wallboard grouting holes 1-2 extend along the up-down direction, one grouting hole is positioned at the middle position of the prefabricated concrete body in the left-right direction, and the other two grouting holes are respectively positioned between the two flexible cables of the corresponding pair of flexible cables.
The upper end of the grouting hole is communicated with the connecting grooves on the upper side surface of the precast concrete body, the lower end of the grouting hole is communicated with the connecting grooves on the lower side surface, and the two ends of the connecting grooves on the upper side surface and the lower side surface of the precast concrete body are respectively communicated with the connecting grooves on the left side surface and the right side surface of the precast concrete body.
The manufacturing process of the wallboard in the embodiment is as follows: 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, heat insulation materials are preset in the steel reinforcement framework, the transverse steel bars and the longitudinal steel bars are connected in inner holes of corresponding flexible ropes in a penetrating mode, then the corresponding transverse steel bars and the corresponding longitudinal steel bars are bound together, a die 0 is supported on the periphery of the steel reinforcement framework and the periphery of the flexible ropes, the connecting end of the flexible ropes is attached to the inner surface of the die, the connecting end of the flexible ropes is perpendicular to the embedded end of the flexible ropes, precast concrete is poured into the die, the flexible connecting end is immersed in the precast concrete, and in the third step, when the precast concrete is not solidified, the die is removed, the precast concrete is not collapsed, the connecting end of the flexible ropes is pulled up from the corresponding side face of the precast concrete, and anti-falling grooves 11 are formed on the connecting side face of the precast concrete along with pulling up of the connecting end of the flexible ropes. The uncured state of the precast concrete in this embodiment refers to a concrete mix state in which the concrete is not fully cured, and the connecting end of the flexible cable can be easily pulled out of the concrete, but the whole concrete does not collapse after the mold is removed. In this embodiment, the anti-slip grooves will be present on the side end walls 8 and the groove walls 1-3 of the connecting groove.
Example 2 of precast concrete panels is shown in fig. 8 to 15:
Embodiment 2 differs from embodiment 1 in that the precast concrete panel in this embodiment is a floor slab 2 horizontally arranged in use, the floor slab has a rectangular structure, the thickness direction of the floor slab is defined as the up-down direction, the width direction is the left-right direction, and the length direction is the front-back 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 wallboard.
The connecting side of the floor slab in the width direction is provided with a connecting groove, which can be called as a floor slab connecting groove 2-1, the connecting side 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 is penetrated out of the side end wall, and the other rope is penetrated out of the groove wall.
The flexible cables on two sides of the precast concrete slab in the length direction are of triangular structures, one end of the precast concrete slab in the length direction is an end A, the other end of the precast concrete slab in the length direction is an end B, the end A is provided with a cavity 2-4 extending along the width direction of the precast concrete slab, the connecting ends of the flexible cables of the triangular structures extend into the cavity, and the cavity walls on two sides of the cavity are provided with cable penetrating holes 2-3 along the thickness direction of the precast concrete slab; the end face of the end B is provided with a connecting groove, the connecting end of the flexible rope of the triangular structure is positioned at the outer side of the end face of the end B, one rope of the connecting end of the flexible rope of the triangular structure is penetrated out by the groove wall, and the other rope is penetrated out by the other side of the groove wall. For the end B, a U-shaped rope penetrating groove 2-5 is formed on the groove wall.
Wherein the end A is used for being connected with the side wall, and the end B is used for being connected with the intermediate wall.
The floor slab is produced in the same manner as the wallboard as shown in fig. 13, and will not be described in detail.
Example 1 of the precast concrete connection node is shown in fig. 16 to 19:
the present precast concrete joint comprises two parallel connected wall panels 1, wherein the specific structure of each wall panel is the same as the wall panel described in the above precast concrete panel embodiment 1, and thus the specific structure of the wall panel is not described in detail herein.
The left wallboard and the right wallboard are arranged at intervals.
The connection ends 10 of the flexible cables on one of the wall panels are cross-arranged with the connection ends 10 of the flexible cables on the other wall panel to form a cross position, and the precast concrete node further comprises flexible cable threading reinforcing bars 4-2 which are threaded between the corresponding cross-connected connection ends, and because the flexible cables are arranged in pairs, on the corresponding cross section, the number of the flexible cable threading reinforcing bars is two, one of the flexible cable threading reinforcing bars is threaded at the cross position of the flexible cable on one side of the connecting groove, and the other flexible cable threading reinforcing bars are threaded at the cross position of the flexible cable on the other side of the connecting groove.
After the flexible cable is connected with the steel bar in a penetrating way and is connected with the crossing position of the corresponding flexible cable, two side support moulds in the thickness direction of the two wallboards, post-cast concrete is poured between the two wallboards, and the post-cast concrete body 6 is formed after the post-cast concrete is solidified. The connection end 10 of the post-cast concrete body and the flexible cable, the flexible cable penetrating steel bar 4-2, the connection side surface and the connection groove and the anti-drop groove on the connection side surface are cast into an integral structure.
In this embodiment, in order to realize connection between adjacent wallboards in the front-rear direction, the wallboard grouting holes 1-2 on the wallboards also need to be filled with concrete in the field after the grouting holes, two vertical additional dowel bars 4-3 of the shear wallboards are arranged in the concrete after the grouting holes, a steel bar limiter 7-1 is arranged in the grouting holes before the grouting holes are filled, one end of each vertical additional dowel bar 4-3 of the shear wallboards is propped against the steel bar limiter 7-1, the steel bar limiter can be a baffle plate, a steel bar positioning device is arranged between the vertical additional steel bars of the shear wallboards and the wall of the grouting holes, the steel bar positioning device can be two U-shaped steel bars which are arranged in a crossing way, and the vertical additional steel bars of the shear wallboards are inserted in the crossing positions of the two U-shaped steel bars. In fig. 17, a portion within the upper broken line box is an enlarged view of a portion of the lower corresponding broken line box.
Example 2 of the precast concrete connection node in the present invention is shown in fig. 20 to 21:
The precast concrete attachment node in this embodiment comprises three precast concrete panels, one of which is a floor slab 2 arranged horizontally, and the other two precast concrete panels are wall panels 1 arranged vertically.
The floor slab is the same as that described in example 2 of the precast concrete panel described above, and the wallboard is the same as that described in example 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 specifically: the connecting end of one flexible cable of the wall plate passes through the corresponding cable penetrating hole 2-3 along the up-down direction and then is crossed with the connecting end of the corresponding flexible cable of the floor plate, and the connecting end of the flexible cable of the floor plate is vertically arranged with the connecting pair of the flexible cable of the wall plate.
The connecting ends of the other flexible ropes of the wallboard pass through the corresponding rope penetrating holes along the up-down direction and then are positioned in the cavity 2-4 of the floor slab, then the flexible ropes are penetrated and connected with the reinforcing steel bars 4-2, and then corresponding cast-in-situ operation is carried out. The linking form of the floor slab and the wallboard is a simulated hinged support.
Example 3 of the precast concrete attachment node of the present invention is shown in fig. 22 to 26:
The precast concrete connecting node comprises three precast concrete slabs, wherein one precast concrete slab is a floor slab 2 with a rectangular structure and arranged horizontally, the other two precast concrete slabs are wall boards 1 vertically arranged on the upper side and the lower side of the floor slab, one end of the length direction of the floor slab is an A end, the other end of the length direction of the floor slab is a B end, the A end is provided with a cavity extending along the width direction of the precast concrete slab, the connecting end of a flexible rope with a triangular structure extends into the cavity, and rope penetrating holes 2-3 are formed in the cavity walls on the two sides of the cavity along the thickness direction of the floor slab; the flexible ropes of the wallboards are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboards, the connecting side faces are formed by groove walls of wallboard connecting grooves 1-1 and side end walls 8 which are positioned on two sides of the groove walls, one of the connecting ends of each flexible rope is penetrated out of the side end walls, the other flexible rope is penetrated out of the groove walls, one flexible rope in each pair of flexible ropes is defined to be a first flexible rope, the other flexible rope is a second flexible rope, the second flexible rope is positioned on one side far away from a floor slab, the two wallboards are arranged on the upper side and the lower side of the end A, the connecting ends of the first flexible ropes of the two wallboards are crossed in a cavity after penetrating through corresponding penetrating rope holes in the upper and lower directions, the connecting ends of the second flexible ropes of the two wallboards are crossed in the cavity after penetrating rope holes in the upper and lower directions, the corner point positions of the flexible ropes of the triangular structure and the connecting ends of the second flexible ropes are crossed, and the precast concrete connecting nodes comprise the first flexible rope and the second flexible rope which are crossed in the cross position of the triangular structure, and the second flexible rope is crossed with the first flexible rope and the second flexible rope, and the precast concrete connecting nodes are further formed by the first flexible rope and the second flexible rope. The linking form of the floor slab and the wallboard is a simulated hinged support.
The floor slab is the same as that described in precast concrete panel example 2 above, and the wallboard is the same as that described in precast concrete panel example 1 above, and will not be described in detail here. In fig. 25, the portion within the right-side broken line box is an enlarged view of the structure within the left-side corresponding broken line box.
Example 4 of precast concrete attachment node as shown in the figure: as shown in fig. 27 to 31:
In this embodiment, precast concrete connected node includes four precast concrete boards, wherein two precast concrete boards are floor slab 2 of rectangle structure that the level was arranged, two floor slabs are arranged about, two other precast concrete boards are wallboard 1 of vertical arranging in the floor upper and lower both sides, floor slab length direction's one end is the A end, another one is the B end, be provided with floor slab connection recess on the B end terminal surface, the link of triangle-shaped structure's flexible cable is located the outside of B end terminal surface, one of them rope of triangle-shaped structure's flexible cable's link is worn out by the recess wall of floor slab connection recess, another one rope is worn out by the other one side of recess wall.
The flexible ropes of the wallboards are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboards, the connecting side surface is composed of a groove wall of a wallboard connecting groove and side end walls positioned at two sides of the groove wall, one rope of the connecting ends of each flexible rope is penetrated out of the side end wall, the other rope is penetrated out of the groove wall, one flexible rope of each pair of flexible ropes is defined as a first flexible rope 13, the other flexible rope is a second flexible rope 14, the second flexible rope is positioned at the right side of the first flexible rope, the two wallboards are arranged at the upper side and the lower side of the B end, the connecting ends of the first flexible ropes of the two wallboards are crossed in the connecting groove at the left side after penetrating through the groove side wall of the corresponding floor connecting groove along the up-down direction, the connecting ends of the second flexible ropes of the two wallboards are crossed in the connecting groove at the right side after penetrating through the groove side wall of the corresponding floor connecting groove along the up-down direction, the flexible cable defining the triangular structure of the left floor slab is a left flexible cable 15, the flexible cable of the triangular structure of the right floor slab is a right flexible cable 16, the angular tip position of the left flexible cable is crossed with the connecting end of the second flexible cable, the angular tip position of the right flexible cable is crossed with the connecting end of the first flexible cable, the precast concrete connecting node comprises a second flexible cable penetrating reinforcing steel bar penetrating and connecting at the crossing position of the left flexible cable and the second flexible cable, the precast concrete connecting node further comprises a first flexible cable penetrating reinforcing steel bar penetrating and connecting at the crossing position of the right flexible cable and the first flexible cable, and the connecting end of the rear cast concrete body and the first flexible cable, the second flexible cable, the left flexible cable and the right flexible cable, the first flexible cable penetrating reinforcing steel bar, and the second flexible cable is connected with the steel bar in a penetrating way and is poured into an integral structure. The floor slab connecting grooves of the two floor slabs and the wallboard connecting grooves of the two wallboards jointly enclose a pouring cavity, and the first flexible cable and the second flexible cable on the wallboards and the connecting ends of the left flexible cable and the right flexible cable on the floor slabs are positioned in the pouring cavity.
The floor slab is the same as that described in precast concrete panel example 2 above, and the wallboard is the same as that described in precast concrete panel example 1 above, and will not be described in detail here. In fig. 30, the portion within the right-side broken line box is an enlarged view of the left-side corresponding broken line box portion,
Compared with the prior art, the invention has the following aspects:
(1) The inside of the precast concrete wallboard is provided with a plurality of grouting holes, so that later pouring and dowel bars are facilitated;
(2) The AB end is arranged on the precast concrete floor slab, so that the precast concrete floor slab can be effectively connected with the middle wall or the 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 the occurrence of transverse cracks in the post-pouring area besides force transmission;
(5) The high-strength flexible cable arranged along the thickness direction of the floor slab can be conveniently and quickly fixed with the high-strength flexible annular cable materials extending out of the upper wallboard and the lower wallboard through the dowel bars;
(6) The natural rough surface formed in the process of hooking the external soft rope, namely the anti-drop 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 thrombus and prevent the cable material from slipping and peeling;
(8) The common steel bars inserted into the precast concrete members are provided with limiting devices which are annular and used for fixing the positions of the steel bars, and plugs at the lower parts are used for controlling grouting depth;
(9) The common steel bars penetrating through the lower wallboard, the floor slab and the upper wallboard are inserted into the precast concrete members, so that the earthquake resistance 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 component to be in a natural straightening shape, so that no ribs are produced when the component is manufactured; after the connecting end of the flexible cable is hooked out from the surface of the component, a natural rough surface, namely an anti-drop groove, is formed, so that the force transfer effect between new and old concrete interfaces can be improved; and fixing the precast concrete member at a specified position in the assembly process, enabling annular cable material rings in adjacent members to be mutually overlapped, penetrating the reinforcing steel bars into a longitudinal lap joint connection annular belt formed by the annular cable materials of the adjacent members, fixing the reinforcing steel bars, arranging a site installation side mold, pouring post-cast materials in a splicing cavity formed by the side mold and the side edges of the precast members, and connecting the adjacent members into a whole. According to the prefabricated concrete wallboard with the high-strength flexible annular cable material, the floor slab and the node connection method thereof, which are provided by the invention, the reinforcement cannot be formed on four sides of the component in the production stage of the component, so that the production efficiency is accelerated; in the assembly stage, high-efficiency assembly can be realized; in the aspect of stress, the stress function of transmitting in-plane load and out-of-plane load is realized, so that the structure has good bearing capacity and anti-seismic performance.
An embodiment of a method for manufacturing a precast concrete panel is shown in fig. 1 to 15, and the precast concrete panel in this embodiment may be a floor slab or a wall slab.
The method comprises the following steps: firstly, manufacturing a reinforcement cage, wherein the reinforcement cage comprises transverse reinforcement bars and longitudinal reinforcement bars which are arranged in a crossed manner, the transverse reinforcement bars and the longitudinal reinforcement bars are connected in inner holes of corresponding flexible ropes in a penetrating manner, then the corresponding transverse reinforcement bars and the corresponding longitudinal reinforcement bars are bound together, secondly, supporting a mould at the periphery of the reinforcement cage and the flexible ropes, enabling the connecting end of the flexible ropes to be attached to the inner surface of the mould, pouring precast concrete into the mould, immersing the flexible connecting end in the precast concrete, thirdly, removing the mould when the precast concrete is not solidified, enabling the precast concrete not to collapse, pulling up the connecting end of the flexible ropes from the corresponding side face of the precast concrete, and forming an anti-drop groove on the connecting side face of the precast concrete along with the pulling up of the connecting end of the flexible ropes.
In the foregoing description of the present specification, the terms "fixed," "mounted," "connected," or "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, in terms of the term "coupled," it may be fixedly coupled, detachably coupled, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other. Therefore, unless otherwise specifically defined in the specification, a person skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.
Those skilled in the art will also appreciate from the foregoing description that terms such as "upper," "lower," "front," "rear," "left," "right," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "center," "longitudinal," "transverse," "clockwise," or "counterclockwise" and the like are used herein for the purpose of facilitating description and simplifying the description of the present invention, and thus do not necessarily have to have, configure, or operate in, the specific orientations, and thus are not to be construed or construed as limiting the present invention.
In addition, the terms "first" or "second" and the like used in the present specification to refer to the numbers or ordinal numbers are used 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 defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless explicitly defined otherwise.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. Precast concrete board, including the steel reinforcement skeleton and pour into overall structure's precast concrete body with the steel reinforcement skeleton, the corresponding side of precast concrete body is the connection side, has the spread groove that is used for concrete post-cast on the connection side, precast concrete board still includes a plurality of flexible ropes of following connection 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 which is poured with a precast concrete body to form an integral structure, the other end of the flexible cable is a connecting end, the embedded end is sleeved on corresponding reinforcing steel bars of the reinforcing steel bar framework, an anti-falling groove formed by pulling out the connecting end when the precast concrete body is not solidified is formed in the side wall of the connecting side face, 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 face is formed by a groove wall of the connecting groove and side face end walls positioned on two sides of the groove wall, one cable rope of the connecting end of each flexible cable is penetrated out by the side face end walls, and the other cable rope is penetrated out by the groove wall.
2. Precast concrete panel according to claim 1, characterized in that: the precast concrete slab is a floor slab with a rectangular structure, flexible ropes on two sides of the precast concrete slab in the width direction are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboard, the connecting side surface consists of a groove wall of a connecting groove and side surface end walls positioned on two sides of the groove wall, one rope at the connecting end of each flexible rope penetrates out from the side surface end wall, and the other rope penetrates out from the groove wall; each flexible rope on two sides of the length direction of the precast concrete slab is in a triangular structure.
3. Precast concrete panel according to claim 2, characterized in that: one end of the precast concrete plate in the length direction is an end A, the other end of the precast concrete plate in the length direction is an end B, the end A is provided with a cavity extending along the width direction of the precast concrete plate, the connecting end of the flexible rope of the triangular structure extends into the cavity, and rope penetrating holes are formed in the cavity walls on two sides of the cavity along the thickness direction of the precast concrete plate; the connecting groove is formed in the end face of the end B, the connecting end of the flexible rope of the triangular structure is located on the outer side of the end face of the end B, one rope of the connecting end of the flexible rope of the triangular structure penetrates out of the groove wall, and the other rope penetrates out of the groove wall.
4. Precast concrete connected node, including two at least precast concrete boards, precast concrete board includes the steel reinforcement skeleton and pours into integrated configuration's precast concrete body with the steel reinforcement skeleton, and the corresponding side of precast concrete body is the connection side, has the coupling groove that is used for concrete post-pouring on the connection side, and precast concrete board still includes a plurality of flexible ropes of following connection 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 which is poured with a precast concrete body to form an integral structure, the other end of the flexible cable is a connecting end, the embedded end is sleeved on corresponding reinforcing steel bars of the reinforcing steel bar framework, an anti-drop groove formed by pulling out the connecting end when the precast concrete body is not solidified is formed on the side wall of the connecting side face, post-pouring concrete bodies are poured in the connecting groove and the anti-drop groove, the precast concrete connecting node comprises two precast concrete boards, the precast concrete boards are wallboards, the flexible cables of the wallboards are arranged in pairs, each pair of flexible cables comprises two flexible cables which are arranged at intervals along the thickness direction of the wallboards, the connecting side face is formed by a groove wall of the 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 is penetrated out of the side end walls, the connecting end of the flexible cable on one wallboard is crossed with the connecting end of the flexible cable on the other wallboard, the concrete node further comprises a flexible cable penetrating connection between the connecting ends which are correspondingly crossed and connected, and the flexible cable penetrating structure is formed by integrally pouring the connecting ends of the flexible steel bars on the wallboard.
5. The precast concrete connection node of claim 4, wherein: the precast concrete connecting node comprises three precast concrete slabs, wherein one precast concrete slab is a floor slab with a rectangular structure and arranged horizontally, the other two precast concrete slabs are wall boards 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 A end, the other end of the floor slab is a B end, the A end is provided with a cavity extending along the width direction of the precast concrete slab, the connecting end of a flexible rope with a triangular structure extends into the cavity, and rope penetrating holes are formed in the cavity walls on the two sides of the cavity along the thickness direction of the precast concrete slab; the flexible ropes of the wallboards are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboards, the connecting side surface is formed by a groove wall of a connecting groove and side end walls which are positioned at two sides of the groove wall, one rope of the connecting ends of each flexible rope is penetrated out of the side end walls, the other rope is penetrated out of the groove wall, one flexible rope in each pair of flexible ropes is defined to be a first flexible rope, the other flexible rope is a second flexible rope, the second flexible rope is positioned at one side far away from a floor slab, the two wallboards are arranged at the upper side and the lower side of the end A, the connecting ends of the first flexible ropes of the two wallboards penetrate through corresponding rope penetrating holes along the upper and lower directions and then are crossed in the cavity, the connecting ends of the second flexible ropes of the two wallboards penetrate through corresponding rope penetrating holes along the upper and lower directions, the corner point of the flexible ropes of the triangle structure and the connecting ends of the second flexible ropes are crossed in the cavity, the connecting node of the concrete is formed by crossing the flexible rope of the triangle structure and the second flexible rope penetrating through the first flexible rope and the second flexible rope, the second flexible rope penetrating through the precast reinforcement steel bar structure is formed by crossing the first flexible rope and the second flexible rope penetrating through the first flexible rope and the precast reinforcement structure.
6. The precast concrete connection node of claim 4, wherein: the precast concrete connection node comprises four precast concrete slabs, wherein two precast concrete slabs are horizontally arranged rectangular structural floorslabs, two floorslabs are arranged left and right, the other two precast concrete slabs are vertical wallboards arranged on the upper side and the lower side of the floorslabs, one end in the length direction of the floorslabs is an A end, the other end is a B end, the end face of the B end is provided with a connection groove, the connection end of a flexible rope of a triangular structure is positioned on the outer side of the end face of the B end, one rope of the connection end of the flexible rope of the triangular structure is penetrated out of the groove wall, the other rope of the flexible rope of the triangular structure is penetrated out of the groove wall, the flexible ropes of the wallboards are arranged in pairs, each pair of flexible ropes comprises two flexible ropes which are arranged at intervals along the thickness direction of the wallboards, the connection side face is composed of the groove wall of the connection groove and side end walls positioned on the two sides of the groove wall, one rope of the connection end of each flexible rope is penetrated out of the side end walls, the other rope is penetrated out of the groove wall, one of the ropes in each pair is defined as a first rope, the other rope is defined as a second rope, the second rope is positioned on the right side of the first rope, the two wallboards are arranged on the upper side and the lower side of the end B, the connecting ends of the first ropes of the two wallboards penetrate through the corresponding connecting groove side wall along the upper and lower direction and then are arranged in the left connecting groove in a crossing manner, the connecting ends of the second ropes of the two wallboards penetrate through the corresponding connecting groove side wall along the upper and lower direction and then are arranged in the right connecting groove in a crossing manner, the ropes of the triangular structure of the right floor slab are defined as left ropes, the ropes of the triangular structure of the right floor slab are right ropes, the corner tip positions of the left ropes are arranged in a crossing manner with the connecting ends of the second ropes, the angle tip position of the right flexible rope is crossed with the connecting end of the first flexible rope, the precast concrete connecting node comprises a second flexible rope penetrating reinforcing steel bar penetrating and connecting at the crossing position of the left flexible rope and the second flexible rope, the precast concrete connecting node further comprises a first flexible rope penetrating and connecting reinforcing steel bar penetrating and connecting at the crossing position of the right flexible rope and the first flexible rope, and the rear cast concrete body is cast into an integral structure with the connecting ends of the first flexible rope, the second flexible rope, the left flexible rope and the right flexible rope, the first flexible rope penetrating and connecting reinforcing steel bar and the second flexible rope penetrating and connecting reinforcing steel bar.
7. The precast concrete connection node of claim 4, wherein: vertical additional dowel bars are arranged in the post-cast concrete body.
8. A method for manufacturing a precast concrete board of any one of the precast concrete boards according to claims 1 to 3, characterized in that: the method comprises the following steps: firstly, manufacturing a reinforcement cage, wherein the reinforcement cage comprises transverse reinforcement bars and longitudinal reinforcement bars which are arranged in a crossed manner, the transverse reinforcement bars and the longitudinal reinforcement bars are connected in an inner hole of a corresponding flexible rope far away from a connecting end, then the corresponding transverse reinforcement bars and the corresponding longitudinal reinforcement bars are bound together, secondly, supporting a mould at the periphery of the reinforcement cage and the flexible rope, the connecting end of the flexible rope is attached to the inner surface of the mould, pouring precast concrete into the mould, immersing the flexible connecting end in the precast concrete, thirdly, removing the mould when the precast concrete is not solidified, preventing the precast concrete from collapsing, pulling up the connecting end of the flexible rope from the corresponding side surface of the precast concrete, and forming an anti-drop groove on the connecting side surface of the precast concrete along with the pulling up of the connecting end of the flexible rope.
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| DE102010003272A1 (en) * | 2010-03-25 | 2011-09-29 | Georg Weidner | Device for producing connection between precast concrete parts, has reinforcement part arranged in groove such that anchor region is extended outside support part on bottom side and connecting portion is inserted into groove |
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