CN114687599A - Self-tapping nail cluster block connecting structure and method for assembled composite wall panel and groove-shaped foundation beam - Google Patents
Self-tapping nail cluster block connecting structure and method for assembled composite wall panel and groove-shaped foundation beam Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 141
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 84
- 238000000034 method Methods 0.000 title claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 188
- 239000010959 steel Substances 0.000 claims abstract description 188
- 239000004567 concrete Substances 0.000 claims abstract description 98
- 230000005540 biological transmission Effects 0.000 claims abstract description 69
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 13
- 239000002023 wood Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
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- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000004793 Polystyrene Substances 0.000 description 5
- 229920002223 polystyrene Polymers 0.000 description 5
- 239000011150 reinforced concrete Substances 0.000 description 5
- 238000010008 shearing Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229920006389 polyphenyl polymer Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 239000002985 plastic film Substances 0.000 description 1
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- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
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- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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Abstract
The invention discloses a self-tapping nail cluster block connecting structure of an assembled composite wallboard and a groove-shaped foundation beam and a manufacturing method thereof, and belongs to the technical field of assembled concrete structures. The self-tapping nail cluster block is a steel-concrete combined block with a steel structure outline of 40mm formed after groove-shaped foundation beam stud channel steel and a composite wallboard linear force transmission steel plate self-tapping nail are connected, the flange of the channel steel and the force transmission steel plate have a friction force between the steel plates generated by extrusion force, and simultaneously, the engaging force between the steel plates and the self-tapping nail can be strengthened; the reinforcing bars of the groove-shaped foundation beam are groove-shaped reinforcement cages restrained by C-shaped stirrups; the groove-shaped foundation beam with the channel steel embedded is convenient for the composite wallboard to be in place and can effectively restrain the composite wallboard from sliding at the bottom under the action of an earthquake vertical to the wallboard direction. The assembled composite wallboard and trough foundation beam self-tapping nail cluster centralized force transmission connection structure and the composite wallboard and trough foundation beam high-performance mortar continuous force transmission connection structure have the technical advantage of cooperative high-efficiency stress.
Description
Technical Field
The invention relates to a self-tapping nail cluster block connecting structure of an assembled composite wallboard and a groove-shaped foundation beam and a manufacturing method thereof, and belongs to the technical field of assembled concrete structures.
Background
At present, the construction technology of the low-multi-layer and ultra-low energy consumption house in villages and small towns, in particular to the construction technology of the assembled type ultra-low energy consumption and low-multi-layer house is quite deficient. The technical bottlenecks in the prior art are:
(1) the traditional shear wall is connected with the foundation beam by cast-in-place concrete, the wet operation amount is large, the construction speed is low, and the construction process has the problems of large construction waste discharge amount and large noise and environmental pollution. (2) The traditional technology for connecting the steel bars by the shear wall sleeve is not suitable for assembling the inner leaf single-row steel bar mesh concrete thin plate sandwich polystyrene board wallboard and the concrete foundation at all, and the thickness of the inner leaf thin wallboard and the outer leaf thin wallboard is only 40 mm-60 mm; (3) the traditional technology for connecting the shear wall and a steel plate of a foundation by bolts is not suitable for assembling the inner leaf single-row reinforcing mesh concrete thin plate sandwich polystyrene board wallboard and the steel plate, because the polystyrene board is clamped between the inner leaf wallboard and the outer leaf wallboard, and the polystyrene board does not allow the drilling and the bolt threading in consideration of heat bridges, water resistance, moisture resistance and corrosion resistance of steel members, the inner leaf concrete thin wallboard and the outer leaf concrete thin wallboard are difficult to be assembled respectively by adopting the traditional steel plate bolt connection technology; (4) the upper surface of the traditional foundation beam is flat, so that the ecological wallboard is not convenient to place, and the lateral constraint of the foundation beam on the bottom edge of the ecological wallboard is also not facilitated. (5) The self-tapping screw is relatively low in price, the thin-wall light steel keels of the thin-wall light steel keel structure are connected through the self-tapping screw, the self-tapping screw penetrates through the two connected light steel keels in sequence, force transmission between the light steel keels is achieved through meshing with the self-tapping screw, and no extrusion friction force exists; however, the assembly of the inner and outer leaf single-row reinforcing mesh concrete thin plate sandwich polyphenyl plate wallboard and the foundation embedded channel steel belongs to the assembly of the reinforced concrete wallboard and the light steel section steel, and simultaneously requires friction force and snap-in force, so that the technology that the light steel keel is directly connected by the existing self-tapping screw is obviously different from the assembly of the inner and outer leaf concrete thin plates of the composite wallboard and the force transmission requirement of the inner and outer leaf concrete thin plates of the composite wallboard.
Disclosure of Invention
The invention aims to solve the technical problem of providing a self-tapping nail cluster connecting structure and a method for an assembled composite wallboard and a groove-shaped foundation beam, and the self-tapping nail cluster connecting structure has small wet operation amount and high construction speed.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a self-tapping nail cluster connecting structure for an assembled composite wallboard and a groove-shaped foundation beam comprises an assembled composite wallboard 1, a concrete floor slab and a groove-shaped concrete foundation beam, wherein the assembled composite wallboard is connected to the upper surface of the groove-shaped concrete foundation beam, and the concrete floor slab is horizontally connected to the joint of the assembled composite wallboard and the groove-shaped concrete foundation beam and is respectively positioned on two sides of the assembled composite wallboard;
the assembled composite wallboard comprises a concrete outer leaf plate, a concrete inner leaf plate and a heat insulation plate clamped between the concrete outer leaf plate and the concrete inner leaf plate, wherein the concrete outer leaf plate and the concrete inner leaf plate are made of composite wall reinforcing mesh cast concrete, and the composite wall reinforcing mesh and the heat insulation plate are connected together through tie bars; two side faces of the composite wall reinforcing mesh are respectively welded and connected with a composite wall force transmission steel plate, and the upper part of the composite wall force transmission steel plate is welded and connected with a force transmission plate connecting reinforcing steel bar;
the concrete floor slab is prefabricated in a factory and is made by pouring concrete through a floor slab reinforcing mesh;
the groove-shaped concrete foundation beam is prefabricated in a factory and is made by pouring concrete in a foundation beam steel reinforcement cage, groove-shaped foundation beam stud channel steel is arranged on the groove-shaped concrete foundation beam, the opening of the groove-shaped foundation beam stud channel steel is upward, channel steel studs downwards penetrate through and are welded on two sides, close to the flange of the channel steel, of the bottom of the groove-shaped foundation beam stud channel steel, and the two composite wall force transmission steel plates are embedded into the inner side of the groove-shaped foundation beam stud channel steel and are connected through self-tapping screws; and a mortar cushion is laid on the inner side of the channel steel with the stud of the channel foundation beam.
Preferably, the composite wall force transmission steel plate is a strip steel plate, and the strip steel plate is prefabricated at the bottom of the assembled composite wall plate in a factory.
Preferably, the tie bar is a steel bar section with an elbow, and is welded and connected to the composite wall steel bar mesh.
Preferably, the dowel plate connecting bars are horizontally distributed bars of the composite wall reinforcing mesh.
Preferably, the surface of the heat preservation board is provided with a dovetail groove, the dovetail groove is meshed with the dovetail grooves on the concrete outer blade plate and the concrete inner blade plate and connected with the dovetail grooves, and the size of the heat preservation board is flush with the upper edge, the lower edge, the left edge and the right edge of the assembled wall board.
Preferably, the composite wall force transmission steel plate is further welded with elbow reinforcing steel bars, the diameter of the elbow reinforcing steel bars is equal to that of the reinforcing steel bars of the composite wall reinforcing mesh, two ends of the elbow reinforcing steel bars are bent to form 20mm elbows, and the elbows at the two ends are welded with the composite wall force transmission steel plate.
Preferably, the foundation beam reinforcement cage is made of a C-shaped stirrup and a tie-connection stirrup which are connected with a beam longitudinal bar through binding or welding.
Preferably, channel steel side grooves are formed in two sides of a flange of the channel steel with the stud of the channel steel of the channel foundation beam.
Preferably, a wood block is bonded on the inner side of the composite wall force transmission steel plate.
A method for manufacturing a self-tapping nail cluster block connecting structure of an assembled composite wallboard and a groove-shaped foundation beam comprises the following steps:
the first step is as follows: manufacturing an assembled composite wallboard with a force transmission steel plate in a factory; preparing a groove-shaped concrete foundation beam of the pre-buried channel steel; prefabricating a concrete floor slab;
the second step is that: high-performance mortar is paved in channel steel at the top of the channel-shaped foundation beam;
the third step: mounting an assembled composite wallboard, embedding a force transmission steel plate of the composite wallboard into a channel steel of a foundation beam, and tightly attaching the force transmission steel plate of the composite wallboard to the inner wall of the channel steel;
the fourth step: self-tapping screws freely penetrate through self-tapping screw holes in flanges of the embedded channel steel of the foundation beam and are connected with the force transmission steel plate of the composite wall in a self-tapping mode;
the fifth step: leveling a groove on the side surface of the channel steel by adopting high-performance mortar;
and a sixth step: and installing a concrete floor slab, and painting the wallboard with the interior wall decorative coating.
The self-tapping nail cluster block for the composite wall panel and the groove-shaped foundation beam solves the following technical problems:
1) the invention adopts the groove-shaped reinforcement type foundation beam with the channel steel, which is convenient for the composite wallboard to be in place and can effectively restrain the composite wallboard from generating bottom slippage under the earthquake action in the direction vertical to the wallboard; the technical problems that the upper surface of a traditional foundation beam is flat, the composite wallboard is not convenient to place, and the lateral restraint of the foundation beam on the bottom edge of the composite wallboard is not facilitated are solved. 2) The price of the self-tapping nail is lower, and the self-tapping nail cluster connecting structure and the manufacturing method of the assembled composite wallboard and the groove-shaped foundation beam solve the technical problem of the self-tapping nail connecting and assembling structure of the single-row reinforced concrete slab and the foundation beam inside and outside the composite wallboard. The construction site basically has no wet operation, and has the advantages of short construction period, environmental protection, little pollution and the like. 3) The high-performance mortar layer in the channel steel is embedded in the foundation beam, and the groove-shaped foundation beam, the inner leaf concrete plate and the outer leaf concrete plate of the composite wallboard and the heat insulation plate can resist the earthquake shearing force borne by the composite wallboard under the bonding action of the high-performance mortar.
The composite wall plate and trough foundation beam self-tapping nail cluster centralized force transmission connection structure and the composite wall plate and trough foundation beam embedded channel steel inner 20mm thick high-performance mortar continuous force transmission connection structure form a combination of a synergistic stress structure, and have the advantages of self-tapping nail cluster centralized force transmission and high-performance mortar layer continuous force transmission combination.
Drawings
FIG. 1 is a schematic plan view of a building;
FIG. 2 is a schematic cross-sectional view of a connecting joint of a self-tapping nail cluster block when a composite wall panel is not connected with a groove-shaped foundation beam and a floor slab;
FIG. 3 is a schematic cross-sectional view of a self-tapping nail cluster connecting node when a composite wall panel is connected with a groove-shaped foundation beam and a floor slab;
FIG. 4 is a schematic perspective view of a self-tapping nail cluster block connection structure of a composite wall panel and a channel-shaped foundation beam;
FIG. 5 is another schematic perspective view of the self-tapping nail cluster block connection structure of the composite wall panel and the channel-shaped foundation beam;
FIG. 6 is a perspective view of a built-in steel structure in the self-tapping nail cluster block connection structure of the composite wall panel and the channel-shaped foundation beam;
FIG. 7 is another perspective view of the built-in steel structure of the self-tapping nail cluster block connection structure of the composite wall panel and the channel-shaped foundation beam;
FIG. 8 is a perspective view of a channel foundation beam;
fig. 9 is a schematic view of the connection structure of the composite wall panel, the channel foundation beam and the floor slab.
In the figure: 1. an assembled composite wallboard; 2. a concrete outer leaf panel; 3. a concrete inner leaf plate; 4. a composite wall reinforcing mesh; 5. stretching the connecting ribs; 6. the dowel plate is connected with a steel bar; 7. elbow reinforcing steel bars; 8. a thermal insulation board; 9. a composite wall force transmission steel plate; 10. a channel-shaped concrete foundation beam; 11. c-shaped stirrups; 12. a foundation beam reinforcement cage; 13. channel steel with studs for the channel-shaped foundation beam; 14. grooves are formed in the side faces of the channel steel; 15. channel steel studs; 16. a concrete floor slab; 17. floor slab reinforcing mesh; 18. self-tapping screw; 19. wood blocks; 20. and (5) mortar cushion coating.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1-9, the self-tapping screw set block is a channel steel which is pre-embedded in a channel-shaped foundation beam, is also used as a force transmission steel plate, is welded with a channel-shaped steel cage, is provided with double rows of anchoring studs at the lower part of a flange with self-tapping screw holes of a connecting steel plate, is welded with the channel-shaped steel cage, is welded with a linear force transmission steel plate on a reinforcing mesh of inner and outer blades of a composite wall plate, and is a steel-concrete combined block which is formed by connecting the self-tapping screws and comprises the foundation beam and the inner and outer blades of the composite wall plate, wherein the outline of the linear force transmission steel plate is 40 mm. Forming a self-tapping nail cluster: a welded one-shaped force transmission steel plate is arranged on a reinforcing mesh at the middle part of an inner leaf concrete thin wallboard and an outer leaf concrete thin wallboard of a prefabricated composite wallboard, a groove-shaped foundation beam is embedded with a channel steel which is provided with double rows of studs and welded with a groove-shaped reinforcement cage, a self-tapping nail hole is formed in the flange of the channel steel and serves as the force transmission steel plate and a connecting steel plate, the connecting steel plate of the composite wall is embedded into the embedded channel steel of the groove-shaped foundation beam, the force transmission steel plate of the wallboard is tightly attached to the channel steel of the foundation beam, the self-tapping nail freely penetrates through the flange hole of the foundation beam and then is in self-tapping connection with the inner leaf force transmission steel plate (outer leaf) of the composite wall, the groove side of the flange of the foundation beam is leveled by mortar, and an inner concealed steel structure concrete thin wallboard block with the thickness of the outline concrete thin slab in the overlapping area of the steel wing of the foundation beam and the wallboard connecting plate is formed.
The groove-shaped foundation beam is a groove-shaped concrete foundation beam formed by pouring concrete into a reinforcement cage which is restricted by C-shaped stirrups and formed by groove-shaped foundation beam longitudinal reinforcements and foundation beam channel steel with studs. After high-performance mortar with the thickness of 20mm is paved in channel steel on the upper portion of the groove-shaped foundation beam, the composite wallboard with the linear force transmission steel plate is placed in the groove, and the self-tapping nail is adopted for connection and freely penetrates through a flange hole of the stud-provided groove steel of the foundation beam to be connected with the force transmission steel plate of the inner blade and the outer blade of the composite wall in a self-tapping mode.
The composite wallboard is an inner leaf single-row reinforced mesh concrete thin plate sandwich polyphenyl plate wallboard consisting of an inner leaf reinforced mesh concrete wallboard and an outer leaf reinforced mesh concrete wallboard which are connected by tie bars and a sandwich insulation board, wherein the lower ends of the inner leaf reinforced mesh and the outer leaf reinforced mesh of the composite wallboard are welded with a force transmission steel plate and connected with a channel steel flange at the upper part of a foundation beam by a self-tapping screw.
The combined connection structure is a combination of a cooperative stress structure formed by a self-tapping nail cluster block concentrated force transmission connection structure of the composite wall board and the foundation beam channel steel and a high-performance mortar continuous force transmission connection structure with the thickness of 20mm of the composite wall board and the foundation beam channel steel.
The connection relationship of the above-described configurations is as follows:
assembled composite wall panel 1: the composite wall reinforcing mesh 4 and the heat insulation board 8 are connected through the tie bars 5, and the concrete outer leaf plate 2 and the concrete inner leaf plate 3 are poured to form the assembled composite wall board 1.
Assembled groove-shaped foundation beam: the channel-shaped foundation beam is prefabricated in a factory and is formed by pouring concrete into a reinforcement cage 12 formed by C-shaped stirrups, tension-connected stirrups and beam longitudinal reinforcements. A channel steel 13 with studs is arranged in the channel foundation beam, and channel steel studs 15 are welded on two sides of the bottom of the channel steel 13, which are close to the flange of the channel steel. The composite wall force transmission steel plate 9 is embedded into the channel steel 13 with the stud for assembly.
The built-in steel of self-tapping nail glomeration constructs: the channel steel 13 with anchoring bolt and self-tapping hole on the flange is built in the channel foundation beam, it has the function of force transmission steel plate and connecting steel plate, its lower part is anchored in the channel foundation beam by double rows of bolt bolts and welded with the reinforcement cage 12 formed by C-shaped stirrup and pull-connecting stirrup and beam longitudinal bar, its upper part is connected with the self-tapping screw of force transmission steel plate welded at the bottom of the inner and outer leaf reinforcement net of composite wall plate, the inner and outer leaf connecting steel plate is formed and includes the hidden steel structure of the channel foundation and the concrete block with 40mm of composite wall plate outline.
Fabricated concrete floor: the concrete floor is prefabricated in a factory and is formed by pouring concrete through the floor reinforcing mesh 17.
Assembled composite wall panel 1: the assembled sandwich heat-insulating concrete composite shear wallboard is characterized in that a single-row reinforced concrete inner and outer leaf plate is formed by a composite wall reinforcing mesh 4, a concrete outer leaf plate 2 and a concrete inner leaf plate 3, the single-row reinforced concrete inner and outer leaf plate and a heat-insulating plate 8 form the composite heat-insulating wallboard through tie bars 5, and self-tapping nail set connecting steel structures are pre-embedded in the wallboard. The assembled composite wall panel 1 with the self-tapping nail cluster connecting steel structure has the remarkable advantages of light weight, good thermal insulation performance, good seismic resistance, good fire resistance and good durability, and is fast in connection and low in manufacturing cost through the self-tapping nail set of the connecting steel plates.
The concrete outer blade plate 2 and the concrete inner blade plate 3: the thin slab is a thin slab with the thickness of 40mm, and is formed by pouring fine stone concrete with the strength of C30-C40.
Composite wall reinforcing mesh 4: is a thin and dense orthogonal reinforcement consisting of horizontal and longitudinal reinforcements.
And (5) a tie bar: the composite wall is a steel bar section with an elbow, and is welded with a composite wall steel bar mesh 4, so that the composite wall mainly plays a role in drawing and connecting the concrete outer leaf plate 2, the concrete inner leaf plate 3 and the heat insulation plate 8.
Dowel steel connecting steel bars 6: the steel bars are horizontally distributed on a concrete sheet steel bar mesh inside and outside the composite wallboard and are welded with the upper side of a force transmission steel plate 9 of the composite wall, and a force transmission plate connecting steel bar 6 is an important component for force transmission of a self-tapping screw block.
Elbow reinforcing steel 7: the reinforced steel bar is added in the middle of the height of the composite wall force transmission steel plate 9, the elbow reinforced steel bar 7 and the reinforcing mesh steel bar have the same diameter, the two ends of the elbow bend 20mm, and the two ends of the elbow bend are welded with the composite wall force transmission steel plate 9.
Insulation board 8: the surface of the wall board is provided with a dovetail groove, and the concrete of the inner blade wall board and the outer blade wall board are meshed with the dovetail groove of the heat-insulating wall board, so that the shear resistance and the anti-stripping capability are enhanced; the sandwich heat insulation plate can adopt polystyrene extruded sheets XPS, polystyrene foam plastic sheets EPS or phenolic foam composite sheets PUR and the like; the sandwich insulation board is parallel and level to the upper edge, the lower edge, the left edge and the right edge of the assembled wallboard, so that the wallboard is assembled and positioned, and the continuity of the insulation structure of the upper wallboard and the lower wallboard can be ensured.
The composite wall force transmission steel plate 9: when the vertical steel bar distribution interval of the steel bar mesh is 100mm, the composite wall force transmission steel plate 9 is a strip-shaped steel plate with the length of 220mm, the width of 40mm and the thickness of not less than 3 mm; the composite wall force transmission steel plate 9 is prefabricated at the bottom of a layer of composite wall plate in a factory; and embedding the composite wall force transmission steel plate 9 into the groove-shaped foundation beam channel steel 13 with the stud and connecting the channel steel with the self-tapping screw 18.
Channel concrete foundation beam 10: the channel concrete foundation beam 10 is a concrete beam in which a steel reinforcement cage with a notch is disposed. The C-shaped stirrups 11, the tension stirrups and the beam longitudinal bars form a foundation beam reinforcement cage 12. The concrete strength of the foundation beam is C30-C40.
Channel beam bolted channel 13: the steel beam is formed by a channel steel and a channel steel stud 15 welded at the lower part of the channel steel, and is arranged in the foundation beam. The flange of the channel beam 13 with the stud nails of the channel-shaped foundation beam has the functions of connecting a steel plate and a force transmission steel plate, and the upper part of the channel beam is provided with a self-tapping nail hole. The self-tapping screw freely penetrates through a hole in the flange of the channel 13 with the stud nail of the channel foundation beam to be connected with the composite wall force transmission steel plate 9 in a self-tapping mode, and the steel plates have the advantages of extrusion force, friction force between the steel plates and meshing force of the steel plates and the self-tapping screw.
Channel steel studs 15: the double-row high-strength stud is welded at the bottom of the channel steel near the flange and mainly plays a role in shearing resistance and pulling resistance.
Concrete floor 16: the floor slab reinforcing mesh 13 is formed after concrete is poured.
Self-tapping screw 18: the ST 6.3 type hexagonal tail drill self-tapping screw can be selected, the total length of the self-tapping screw is 20mm, the through length of the screw thread is long, and the distance between the self-tapping screws is 25-50mm generally.
Wood block 19: the self-tapping screw is a wood block which is stuck to the inner side of a force transmission steel plate 9 of a composite wall by using binders such as glass cement and the like, and has the main function of facilitating the self-tapping screw to penetrate through the force transmission steel plate and then penetrate into the wood block, wherein the thickness of the wood block is 12 mm.
Mortar cushion 20: the high-performance mortar with the thickness of 20mm and the strength not lower than M15 is paved on the channel beam 13 with the stud bolts of the channel-shaped foundation beam. The high-performance mortar plays a role in improving the bonding between the channel steel 13 with the stud bolts of the channel foundation beam and the reinforced concrete slabs of the inner leaf and the outer leaf of the composite wallboard, and can resist the earthquake shearing force borne by the composite wallboard.
The self-tapping nail cluster connecting structure of the assembled composite wall panel and the groove-shaped foundation beam comprises the following steps:
the first step is as follows: manufacturing an assembled composite wallboard with a force transmission steel plate in a factory; preparing a groove-shaped concrete foundation beam of the pre-buried channel steel; and (5) prefabricating the concrete floor.
The second step is that: and high-performance mortar is paved in the channel steel at the top of the channel-shaped foundation beam.
The third step: and installing the assembled composite wallboard, embedding the force transmission steel plate of the composite wallboard into the channel steel of the foundation beam, and tightly attaching the force transmission steel plate of the composite wallboard to the inner wall of the channel steel.
The fourth step: and self-tapping screws freely penetrate through self-tapping screw holes in flanges of the embedded channel steel of the foundation beam and are connected with the force transmission steel plate of the composite wall in a self-tapping mode.
The fifth step: and leveling the groove on the side surface of the channel steel by adopting high-performance mortar.
And a sixth step: and installing a concrete floor slab, and painting the wallboard by adopting the interior wall decorative coating.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. The self-tapping nail cluster connecting structure for the assembled composite wall panel and the groove-shaped foundation beam is characterized by comprising an assembled composite wall panel (1), a concrete floor (16) and a groove-shaped concrete foundation beam (10), wherein the assembled composite wall panel (1) is connected to the upper surface of the groove-shaped concrete foundation beam (10), and the concrete floor (16) is horizontally connected to the joint of the assembled composite wall panel (1) and the groove-shaped concrete foundation beam (10) and is respectively positioned on two sides of the assembled composite wall panel (1);
the assembled composite wallboard (1) comprises a concrete outer leaf plate (2), a concrete inner leaf plate (3) and a heat insulation plate (8) clamped between the concrete outer leaf plate (2) and the concrete inner leaf plate (3), wherein the concrete outer leaf plate (2) and the concrete inner leaf plate (3) are made of composite wall reinforcing steel bar meshes (4) through pouring concrete, and the composite wall reinforcing steel bar meshes (4) and the heat insulation plate (8) are connected together through tie bars (5); two side surfaces of the composite wall reinforcing mesh (4) are respectively welded and connected with a composite wall force transmission steel plate (9), and the upper part of the composite wall force transmission steel plate (9) is welded and connected with a force transmission plate connecting reinforcing steel bar (6);
the concrete floor (16) is prefabricated in a factory and is made by pouring concrete through a floor reinforcing mesh (17);
the channel-shaped concrete foundation beam (10) is prefabricated in a factory and is made by pouring concrete in a foundation beam reinforcement cage (12), a channel-shaped foundation beam bolted channel steel (13) is arranged on the channel-shaped concrete foundation beam (10), the opening of the channel-shaped foundation beam bolted channel steel (13) is upward, channel-shaped studs (15) downwards penetrate through and are welded at the bottom of the channel-shaped foundation beam bolted channel steel (13) and close to the two sides of the flange of the channel steel, and the two composite wall force transmission steel plates (9) are embedded into the inner side of the channel-shaped foundation beam bolted channel steel (13) and are connected by self-tapping nails (18); and a mortar cushion layer (20) is laid on the inner side of the channel steel (13) with the stud of the channel foundation beam.
2. The self-tapping nail cluster connecting structure of the assembled composite wall panel and the channel foundation beam as claimed in claim 1, wherein the composite wall force transmission steel plate (9) is a strip steel plate, and the strip steel plate is prefabricated at the bottom of the assembled composite wall panel (1) in a factory.
3. The self-tapping nail cluster connecting structure of fabricated composite wall panel and channel foundation beam as claimed in claim 1, wherein the tie bar (5) is a steel bar segment with an elbow, and is welded and connected to the composite wall reinforcing mesh (4).
4. The self-tapping nail cluster connecting structure of fabricated composite wall panel and channel foundation beam as claimed in claim 1, wherein the dowel connection steel bar (6) is a horizontally distributed steel bar of the composite wall reinforcing mesh (4).
5. The connecting structure of the assembly type composite wall board and the groove-shaped foundation beam self-tapping nail cluster block as claimed in claim 1, wherein dovetail grooves are formed in the surface of the heat insulation board (8), the dovetail grooves are in meshed connection with the dovetail grooves in the concrete outer blade board (2) and the concrete inner blade board (3), and the size of the heat insulation board (8) is flush with the upper edge, the lower edge, the left edge and the right edge of the assembly type wall board.
6. The self-tapping nail cluster connecting structure of the assembled composite wall panel and the channel-shaped foundation beam as claimed in claim 1, wherein an elbow reinforcing steel bar (7) is welded on the composite wall force transmission steel plate (9), the diameter of the elbow reinforcing steel bar (7) is equal to the diameter of the steel bar of the composite wall reinforcing mesh (4), two ends of the elbow reinforcing steel bar (7) are bent to form 20mm elbows, and the two elbows are welded with the composite wall force transmission steel plate (9).
7. The self-tapping nail cluster connection structure of the assembled composite wall panel and the channel-shaped foundation beam as claimed in claim 1, wherein the foundation beam reinforcement cage (12) is made of a C-shaped stirrup (11) and a tie-connection stirrup connected with a beam longitudinal bar by binding or welding.
8. The self-tapping nail cluster connecting structure of the fabricated composite wall panel and the channel-shaped foundation beam as claimed in claim 1, wherein channel side grooves (14) are formed on both sides of the flange of the bolted channel (13) of the channel-shaped foundation beam.
9. The self-tapping nail cluster connecting structure of the assembled composite wall panel and the channel foundation beam as claimed in claim 1, wherein a wood block (19) is bonded to the inner side of the composite wall force transmission steel plate (9).
10. The method for manufacturing the self-tapping nail cluster block connecting structure of the assembled composite wall panel and the groove-shaped foundation beam is characterized by comprising the following steps of:
the first step is as follows: manufacturing an assembled composite wallboard with a force transmission steel plate in a factory; preparing a groove-shaped concrete foundation beam of the pre-buried channel steel; prefabricating a concrete floor slab;
the second step is that: high-performance mortar is paved in channel steel at the top of the channel-shaped foundation beam;
the third step: mounting an assembled composite wallboard, embedding a force transmission steel plate of the composite wallboard into a channel steel of a foundation beam, and tightly attaching the force transmission steel plate of the composite wallboard to the inner wall of the channel steel;
the fourth step: self-tapping screws freely penetrate through self-tapping screw holes in flanges of the embedded channel steel of the foundation beam, and the self-tapping screws are connected with the composite wall force transmission steel plate in a self-tapping mode;
the fifth step: leveling a groove on the side surface of the channel steel by adopting high-performance mortar;
and a sixth step: and installing a concrete floor slab, and painting the wallboard by adopting the interior wall decorative coating.
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| CN202210273906.5A CN114687599B (en) | 2022-03-19 | 2022-03-19 | Assembled composite wallboard and groove-shaped foundation beam self-tapping screw assembly connection structure |
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