CN111088855A - Vertical steel bar connecting device for prefabricated wall panel - Google Patents
Vertical steel bar connecting device for prefabricated wall panel Download PDFInfo
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- CN111088855A CN111088855A CN201911315371.8A CN201911315371A CN111088855A CN 111088855 A CN111088855 A CN 111088855A CN 201911315371 A CN201911315371 A CN 201911315371A CN 111088855 A CN111088855 A CN 111088855A
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- base plate
- embedded
- connecting device
- hand
- gasket
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 239000002184 metal Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims 7
- 240000009087 Crescentia cujete Species 0.000 claims 2
- 235000005983 Crescentia cujete Nutrition 0.000 claims 2
- 235000009797 Lagenaria vulgaris Nutrition 0.000 claims 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 239000011440 grout Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- 241000219122 Cucurbita Species 0.000 description 5
- 235000009852 Cucurbita pepo Nutrition 0.000 description 5
- 229910000746 Structural steel Inorganic materials 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Classifications
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4114—Elements with sockets
- E04B1/4121—Elements with sockets with internal threads or non-adjustable captive nuts
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a vertical steel bar connecting device for a prefabricated wallboard, which comprises a first embedded rod, a base plate, a second embedded rod, a gasket, a nut and a hand hole box, wherein the hand hole box is fixed in the center of the top surface of the base plate and forms a hand operation space with the base plate, a plurality of first embedded rods are vertically fixed on the edge of the top surface of the base plate, the gasket is placed in the center of the top surface of the base plate, the second embedded rod penetrates through the base plate and the gasket in sequence and then vertically extends into the hand operation space and is in threaded connection with the nut, the dry connection of the prefabricated wallboard can be realized under the condition of no need of grouting connecting materials, the whole structure is compact, the cost is low, the installation is rapid, simple, convenient, safe, reliable and stable, the field construction is less influenced by weather, the quality of joints is simple and convenient, the wet operation amount of a construction field is effectively reduced, the manufacturing and processing technology of products, in particular, the disadvantages of the sleeve grouting connection and the grout anchor connection.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of assembly type buildings, in particular to the technical field of a vertical steel bar connecting device for prefabricated wallboards.
[ background of the invention ]
The research on the precast concrete structure in foreign countries, particularly developed countries such as the united states and japan, is relatively early, but the research work of foreign researchers is mainly focused on the precast concrete frame direction, and relatively less on the precast shear wall structure direction. The shear wall structure is one of important structural forms in the house industrialization in China, and accords with the development trend of the building industry, wherein the vertical steel bar connection for assembling the shear wall is a difficult point in the application of the structure.
The assembled shear wall steel bar connection mode mainly comprises a sleeve grouting connection mode, a constraint slurry anchor lap joint mode and a corrugated pipe slurry anchor lap joint mode, the three connection modes are wet construction, the influence of the ambient temperature is large, and a large amount of special grouting connection materials, machine equipment and professional training workers are needed, so that a large amount of grouting connection operation construction is carried out. In addition, the sleeve grouting connection requires high manufacturing precision of prefabricated parts, and people, machines, materials, methods and rings in most of domestic prefabricated part plants do not have the capability of producing high-precision prefabricated part products at present. In addition, once a situation of large deviation of the connection dimension occurs in the hoisting process of a construction site, the construction site often adopts an operation method which affects the structure safety in order not to affect the progress of the project and not to have a better solution. Secondly, the sleeve connection, especially the double-row sleeve pre-embedding process can cause that the gap is very small because the number of the sleeves is large, so that the concrete in the area is not easy to vibrate and compact. Therefore, there is a need for a dry type connecting device that reduces the number of wet work points during construction, improves the construction progress, and reduces the assembly construction cost.
[ summary of the invention ]
The invention aims to solve the problems in the prior art and provides a vertical steel bar connecting device for a prefabricated wallboard, which can realize dry connection of the prefabricated wallboard under the condition of not grouting connecting materials.
In order to achieve the purpose, the invention provides a vertical steel bar connecting device for a prefabricated wall board, which comprises a first embedded rod, a base plate, a second embedded rod, a gasket, a nut and a hand hole box, wherein the hand hole box is fixed in the center of the top surface of the base plate and forms a hand operation space with the base plate, a plurality of first embedded rods are vertically fixed on the edge of the top surface of the base plate, the gasket is placed in the center of the top surface of the base plate, and the second embedded rod penetrates through the base plate and the gasket successively and then vertically extends into the hand operation space and is in threaded connection with the nut.
Preferably, the number of the first embedded rods is 2-4, and the first embedded rods are symmetrically arranged on the left side and the right side of the hand hole box.
Preferably, the base plate comprises a first steel plate and a second steel plate, a first opening and a second opening are formed in the centers of the first steel plate and the second steel plate respectively, a third opening is formed in the center of the gasket, and the second embedded rod is a combined steel rod with an upset head at one end and a screw thread at the other end.
Preferably, the first and second openings are rectangular, oblong, square, circular, trapezoidal, oval or triangular.
Preferably, the edge of the first steel plate is provided with a plurality of first threaded holes, the edge of the second steel plate is provided with a plurality of gourd holes, each gourd hole comprises a counter bore, a second threaded hole and a rib passing groove for connecting the counter bore and the second threaded hole, the positions of the first threaded hole and the second threaded hole are corresponding, and the first embedded rod is a double-headed steel rod with two heads provided with heads or a combined steel rod with one end provided with a head and the other end provided with a thread tooth.
Preferably, the surfaces of the first embedded rod and the second embedded rod are smooth circular, spiral groove type, spiral rib type or ribbed type.
Preferably, the hand hole box is formed by bending a metal sheet, and an opening for a hand to extend into is formed in the front side of the hand hole box.
Preferably, the shape of the hand hole box is a rectangle, a square, a convex character, a trapezoid or an ellipse.
The invention has the beneficial effects that: the invention can realize the dry connection of the preset wall plate without grouting connection materials, has compact integral structure, low cost, quick, simple, convenient, safe, reliable and stable installation, small weather influence on site construction, simple and convenient joint quality acceptance check, effective reduction of the wet operation amount of the construction site, mature product manufacturing and processing technology and capability of making up the defects of the vertical steel bar connection of the existing prefabricated part, particularly the sleeve grouting connection and the slurry anchor connection.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic perspective view of a first embodiment;
FIG. 2 is a top view of the first steel plate;
FIG. 3 is a top view of a second steel plate;
FIG. 4 is a schematic diagram of the construction of a gourd hole;
FIG. 5 is a cross-sectional view taken at A-A of FIG. 4;
FIG. 6 is a cross-sectional view taken at B-B of FIG. 4;
FIG. 7 is a top view of the shim;
FIG. 8 is a front view of a double headed steel bar;
FIG. 9 is a front view of the composite steel bar;
FIG. 10 is a schematic diagram illustrating operation of the first embodiment;
FIG. 11 is a schematic perspective view of the second embodiment;
in the figure: 1-vertical steel bar connecting device for prefabricated wall panel, 11-first embedded rod, 12-first steel plate, 121-first open pore, 122-first threaded hole, 13-second steel plate, 131-second open pore, 132-gourd hole, 1321-counter bore, 1322-second threaded hole, 1323-reinforcement groove, 14-second embedded rod, 15-gasket, 151-third open pore, 16-nut, 17-hand hole box, 2-upper preset wall panel, 3-lower preset wall panel and 4-inter-component gap base slurry layer.
[ detailed description ] embodiments
The first embodiment is as follows:
the invention relates to a vertical steel bar connecting device for a prefabricated wall panel, which comprises a first embedded rod 11, a base plate, a second embedded rod 14, a gasket 15, a nut 16 and a hand hole box 17, wherein the hand hole box 17 is fixed at the center of the top surface of the base plate and forms a hand operation space with the base plate, a plurality of first embedded rods 11 are vertically fixed at the edge of the top surface of the base plate, the gasket 15 is placed at the center of the top surface of the base plate, the second embedded rods 14 penetrate through the base plate and the gasket 15 in sequence and then vertically extend into the hand operation space and are in threaded connection with the nut 16, the number of the first embedded rods 11 is 4, the plurality of first embedded rods 11 are symmetrically arranged at the left side and the right side of the hand hole box 17, the base plate comprises a first steel plate 12 and a second steel plate 13, the centers of the first steel plate 12 and the second steel plate 13 are respectively provided with a first open hole 121 and a second open hole 131, the center of, the second embedded bar 14 is a combined steel bar with an upset head at one end and screw teeth at the other end, the first opening 121 and the second opening 131 are rectangular, square, circular, trapezoidal, oval or triangular, the edge of the first steel plate 12 is provided with a plurality of first threaded holes 122, the edge of the second steel plate 13 is provided with a plurality of gourd holes 132, each gourd hole 132 comprises a countersunk hole 1321, a second threaded hole 1322 and a reinforcement groove 1323 connecting the countersunk hole 1321 and the second threaded hole 1322, the positions of the first threaded holes 122 and the second threaded holes 1322 correspond to each other, the first embedded bar 11 is a double-upset steel bar with upset heads at both ends or a combined steel bar with an upset head at one end and screw teeth at the other end, the surfaces of the first embedded bar 11 and the second embedded bar 14 are in a smooth round type, a spiral groove type, a spiral rib type or a ribbed type, the hand hole box 17 is formed by bending a metal thin plate and has an opening for a hand to extend into at the front side, the hand hole box 17 is rectangular, square, convex, trapezoidal or elliptical in shape.
Referring to fig. 1, 2, 3, 7 and 10, in the working process, one end of the first pre-buried rod 11 is fixed to the substrate and the other end is pre-buried in the upper pre-buried wallboard 2, one end of the second pre-buried rod 14 is pre-buried in the lower pre-buried wallboard 3, and the other end passes through the first opening 121, the second opening 131 and the third opening 151 in sequence and then is in threaded connection with the nut 16, so that the dry connection between the upper pre-buried wallboard 2 and the lower pre-buried wallboard 3 is realized. The gap between the upper preset wall plate 2 and the lower preset wall plate 3 is filled with slurry and forms an inter-component gap slurry layer 4. In the pre-embedding process, the first pre-embedded rods 11 and the second pre-embedded rods 14 can be bound on the reinforcing steel bar net on the upper pre-embedded wallboard 2 and the lower pre-embedded wallboard 3 respectively in advance, and concrete is poured for pre-embedding. The upper preset wallboard 2 can be installed above the lower preset wallboard 3 in a hoisting mode, and the second embedded rod 14 is kept aligned with the first opening 121, the second opening 131 and the third opening 151.
Referring to fig. 2, 3, 4, 5 and 6, the connection process of the first embedded rod 11 and the substrate is as follows: if the first embedded rod 11 adopts a double-headed steel rod with two heads provided with heads, one head passes through the second threaded hole 1322 of the second steel plate 13, the rod body moves along the rib passing groove 1323, the head is placed in the countersunk hole 1321, and then the head and the first steel plate 12 are welded and fixed; if the combined steel bar with the upset head at one end and the screw thread at the other end is adopted by the first embedded rod 11, the end with the screw thread is screwed into the second threaded hole 1322 and the first threaded hole 122 in sequence.
The first steel plate 12, the second steel plate 13 and the gasket 15 are made of high-quality carbon structural steel or low-alloy high-strength structural steel, and the mechanical properties of the cold stamping production process meet the requirements of GB/T699-1999 high-quality carbon structural steel or GB/T1591-2016 low-alloy high-strength structural steel and the requirements of the following table 1.
| Item | Performance index |
| Yield strength sigma s/Mpa | ≧355 |
| Tensile strength sigma b/Mpa | ≧600 |
| Elongation after break A/%) | ≧16 |
TABLE 1 physical Property requirements of the first Steel plate, the second Steel plate and the shim
Referring to fig. 4 and 5, the shape parameters of the first steel plate 12 and the second steel plate 13 conform to the specifications of table 2 below.
TABLE 2 shape parameters of the first and second steel plates
The end faces of the notches of the steel bars adopted by the first embedded rod 11 and the second embedded rod 14 are flat, do not incline, have no phenomena of burrs, fins and the like, and meet the specification of a steel bar for prestressed concrete in GB T5223.3-2017 and the specification of the following table 3.
| Item | Performance index |
| Tensile strength RM/Mpa | ≧1420 |
| Plastic elongation strength RPO.2/Mpa | ≧1280 |
| Repeated bending performance/time | ≧4 |
Table 3 physical property requirements of the first embedded bar and the second embedded bar
The shape of the upset heads of the first embedded rod 11 and the second embedded rod 14 is required to be round, not inclined and not cracked, and the upset heads cannot be used if single-side upset, head deviation, head inclination, burst, size out-of-tolerance and the like occur. The heading strength should not be lower than 90% of the parent metal, and the actual measured tensile strength RM/Mpa should not be lower than 95% of the standard value of the parent metal tensile strength. The heading adopts a hot heading process, the heating time, the current and the heading stroke are adjusted according to the wire diameter and the material, and the air pressure is more than 0.55MPa, so that the shape and the size of the heading meet the requirements. The upset shape parameters are as specified in table 4 below.
TABLE 4 heading parameter requirements
Example two:
the number of the first embedded rods 11 is 2, and the other parts are the same as those of the first embodiment.
The invention can realize the dry connection of the preset wall plate without grouting connection materials, has compact integral structure, low cost, quick, simple, convenient, safe, reliable and stable installation, small weather influence on site construction, simple and convenient joint quality acceptance check, effective reduction of the wet operation amount of the construction site, mature product manufacturing and processing technology and capability of making up the defects of the vertical steel bar connection of the existing prefabricated part, particularly the sleeve grouting connection and the slurry anchor connection.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides a prefabricated vertical steel bar connection device for wallboard which characterized in that: including first embedded pole (11), base plate, the embedded pole of second (14), gasket (15), nut (16) and hand hole box (17), hand hole box (17) are fixed at the top surface central authorities of base plate and are formed hand operating space, a plurality of the top surface edge at the base plate of first embedded pole (11) vertical fixation, gasket (15) are placed at the top surface central authorities of base plate, embedded pole of second (14) successively pass behind base plate and gasket (15) and stretch into perpendicularly in the hand operating space and with nut (16) threaded connection.
2. The vertical reinforcing bar connecting device for prefabricated wall panels as claimed in claim 1, wherein: the number of the first embedded rods (11) is 2-4, and the first embedded rods (11) are symmetrically arranged on the left side and the right side of the hand hole box (17).
3. The vertical reinforcing bar connecting device for prefabricated wall panels as claimed in claim 1, wherein: the base plate comprises a first steel plate (12) and a second steel plate (13), the centers of the first steel plate (12) and the second steel plate (13) are respectively provided with a first opening (121) and a second opening (131), the center of the gasket (15) is provided with a third opening (151), and the second embedded rod (14) is a combined steel bar with one end provided with an upset head and the other end provided with a screw thread.
4. The vertical reinforcing bar connecting device for prefabricated wall panels as claimed in claim 3, wherein: the first opening (121) and the second opening (131) are rectangular, square, circular, trapezoidal, oval or triangular.
5. The vertical reinforcing bar connecting device for prefabricated wall panels as claimed in claim 3, wherein: the edge of first steel sheet (12) is equipped with first screw hole (122) of a plurality of, the edge of second steel sheet (13) is equipped with a plurality of calabash hole (132), calabash hole (132) are including counter bore (1321), second screw hole (1322) and the mistake muscle groove (1323) of connecting counter bore (1321) and second screw hole (1322), first screw hole (122) and the position of second screw hole (1322) are corresponding, first buried pole (11) are two upset head steel bars that both ends all were equipped with the upset head or one end is equipped with the upset head and the other end is equipped with the combination steel bar of screw thread.
6. The vertical reinforcing bar connecting device for prefabricated wall panels as claimed in claim 1, wherein: the surfaces of the first embedded rod (11) and the second embedded rod (14) are of a smooth circular type, a spiral groove type, a spiral rib type or a ribbed type.
7. The vertical reinforcing bar connecting device for prefabricated wall panels as claimed in claim 1, wherein: the hand hole box (17) is formed by bending a metal sheet, and an opening for a hand to extend into is formed in the front side of the hand hole box.
8. The vertical reinforcing bar connecting device for prefabricated wall panels as claimed in claim 1, wherein: the hand hole box (17) is rectangular, square, convex, trapezoidal or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911315371.8A CN111088855A (en) | 2019-12-19 | 2019-12-19 | Vertical steel bar connecting device for prefabricated wall panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911315371.8A CN111088855A (en) | 2019-12-19 | 2019-12-19 | Vertical steel bar connecting device for prefabricated wall panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111088855A true CN111088855A (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911315371.8A Pending CN111088855A (en) | 2019-12-19 | 2019-12-19 | Vertical steel bar connecting device for prefabricated wall panel |
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| Country | Link |
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| CN (1) | CN111088855A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963026A (en) * | 2021-03-02 | 2021-06-15 | 山西建投晋东南建筑产业有限公司 | Construction method of box-type connection assembly type public toilet |
-
2019
- 2019-12-19 CN CN201911315371.8A patent/CN111088855A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963026A (en) * | 2021-03-02 | 2021-06-15 | 山西建投晋东南建筑产业有限公司 | Construction method of box-type connection assembly type public toilet |
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