CN114687599B - Assembled composite wallboard and groove-shaped foundation beam self-tapping screw assembly connection structure - Google Patents
Assembled composite wallboard and groove-shaped foundation beam self-tapping screw assembly connection structure Download PDFInfo
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- CN114687599B CN114687599B CN202210273906.5A CN202210273906A CN114687599B CN 114687599 B CN114687599 B CN 114687599B CN 202210273906 A CN202210273906 A CN 202210273906A CN 114687599 B CN114687599 B CN 114687599B
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- 239000002131 composite material Substances 0.000 title claims abstract description 136
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 79
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 199
- 239000010959 steel Substances 0.000 claims abstract description 199
- 239000004567 concrete Substances 0.000 claims abstract description 93
- 230000005540 biological transmission Effects 0.000 claims abstract description 67
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 16
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 13
- 238000009413 insulation Methods 0.000 description 8
- 239000011150 reinforced concrete Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 229920006389 polyphenyl polymer Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
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- 230000015572 biosynthetic process Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- 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
Abstract
The invention discloses a self-tapping screw block connection structure of an assembled composite wallboard and a groove-shaped foundation beam, and belongs to the technical field of assembled concrete structures. The self-tapping screw assembly is a steel-concrete combined block with a steel structure outline of 40mm formed by connecting a groove-shaped base Liang Daishuan with a channel steel and a composite wallboard one-shaped force transmission steel plate self-tapping screw, the flange of the channel steel and the force transmission steel plate have friction force between steel plates generated by extrusion force, and meanwhile, the biting force of the steel plates and the self-tapping screw can be enhanced; the reinforcement of the groove-shaped foundation beam is a groove-shaped reinforcement cage restrained by C-shaped stirrups; the groove-shaped foundation beam of the embedded channel steel is convenient for the composite wallboard to be in place and can effectively restrict the composite wallboard from sliding at the bottom under the earthquake action perpendicular to the wallboard direction. The assembled composite wallboard and groove-shaped foundation beam self-tapping screw block centralized force transmission connection structure and the composite wallboard and groove-shaped foundation beam high-performance mortar continuous force transmission connection structure have the technical advantage of cooperating with high-efficiency stress.
Description
Technical Field
The invention relates to a self-tapping screw block connection structure and a self-tapping screw block connection method for an assembled composite wallboard and a groove-shaped foundation beam, and belongs to the technical field of assembled concrete structures.
Background
At present, the construction technology of the village and town low-multilayer ultralow-energy-consumption house, in particular to the construction technology of the assembled ultralow-energy-consumption low-multilayer house, which is quite deficient. The technical bottlenecks in the prior art are as follows:
(1) The traditional shear wall is connected with the foundation beam by cast-in-place concrete, so that the wet workload is high, the construction speed is low, and the problems of large construction waste discharge and large noise and environmental pollution exist in the construction process. (2) The traditional technology of connecting the steel bars by the shear wall sleeve is not applicable to the assembly of the inner and outer She Shanpai reinforced mesh concrete thin plate sandwich polystyrene board wall boards and the concrete foundation at all, and the thickness of the inner and outer She Bao wall boards is only 40-60 mm; (3) The traditional technology for bolting the shear wall and the steel plate of the foundation is not suitable for assembling the inner and outer She Shanpai reinforced mesh concrete thin plate sandwich polyphenyl plate wallboards and the steel plate, because the polyphenyl plate is clamped between the inner and outer leaf wallboards and the polyphenyl plate is not allowed to be perforated and threaded by considering the problems of heat bridge, water resistance, moisture resistance and corrosion resistance of steel members, the inner and outer leaf concrete thin wall boards are difficult to be assembled respectively by adopting the traditional steel plate bolting technology; (4) The upper surface of the traditional foundation beam is flat, so that the ecological wallboard is inconvenient to position, and the side constraint of the foundation beam to the bottom edge of the ecological wallboard is also inconvenient. (5) The price of the self-tapping screw is lower, the thin-wall light steel keels of the thin-wall light steel keel structure are connected by adopting the self-tapping screw, the self-tapping screw penetrates through the two light steel keels which are connected in sequence, and the force transmission between the light steel keels is realized through the engagement with the self-tapping screw without extrusion friction force; however, the assembly of the inner and outer She Shan rows of reinforced concrete thin plate sandwich polyphenyl plate wallboards and foundation embedded channel steel belongs to the assembly of reinforced concrete wallboards and light steel section steel, and meanwhile friction force and biting force are required, so that the existing technology for directly connecting light steel keels by self-tapping screws is obviously different from the assembly of the inner and outer leaf concrete thin wallboards of the composite wallboards and the force transmission requirements of the inner and outer leaf concrete thin wallboards, and the self-tapping screw block connection structure and the construction method of the assembled composite wallboards and the groove-shaped foundation beams solve the technical problem.
Disclosure of Invention
The invention aims to solve the technical problems of providing a self-tapping screw block connection structure and a self-tapping screw block connection method for an assembled composite wallboard and a groove-shaped foundation beam, which have the advantages of small wet workload and high construction speed.
In order to solve the technical problems, the invention adopts the following technical scheme:
the self-tapping screw block connection structure of the assembled composite wallboard and the groove-shaped foundation beam comprises an assembled composite wallboard 1, a concrete floor slab and the 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 at two sides of the assembled composite wallboard;
the assembled composite wallboard comprises a concrete outer blade, a concrete inner blade and a heat insulation board clamped between the concrete outer blade and the concrete inner blade, wherein the concrete outer blade and the concrete inner blade are made of composite wall reinforcing steel mesh pouring concrete, and the composite wall reinforcing steel mesh and the heat insulation board are connected through tie bars; a composite wall force transmission steel plate is welded and connected to two side surfaces of the composite wall reinforcing mesh respectively, and a force transmission plate connecting reinforcing steel bar is welded and connected to the upper part of the composite wall force transmission steel plate;
the concrete floor slab is prefabricated in a factory and is made by pouring concrete into a floor slab reinforcing mesh;
the groove-shaped concrete foundation beam is prefabricated in a factory and is made by pouring concrete into a foundation beam reinforcement cage, groove-shaped foundation Liang Daishuan nail channel steel is arranged on the groove-shaped concrete foundation beam, the opening of the groove-shaped foundation Liang Daishuan nail channel steel is upward, channel steel bolts downwards penetrate through and are welded on two sides, close to a channel steel flange, of the bottom of the groove-shaped foundation Liang Daishuan nail channel steel, of each composite wall force transmission steel plate is embedded into the inner side of the groove-shaped foundation Liang Daishuan nail channel steel and connected through self-tapping nails; and a mortar cushion layer is also paved on the inner side of the channel steel of the channel-shaped foundation Liang Daishuan.
Preferably, the composite wall force-transmitting steel plate is a strip steel plate, and the strip steel plate is prefabricated at the bottom of the assembled composite wallboard in a factory.
Preferably, the pull-connecting ribs are steel bar segments with elbows and are welded on the composite wall steel bar net.
Preferably, the force transfer plate connecting steel bars are horizontally distributed steel bars of the composite wall steel bar mesh.
Preferably, the surface of the heat-insulating plate is provided with a dovetail groove, the dovetail groove is connected with the dovetail grooves on the concrete outer blade plate and the concrete inner blade plate in a meshed mode, and the size of the heat-insulating plate is flush with the upper edge, the lower edge, the left edge and the right edge of the assembled wall plate.
Preferably, the force transmission steel plate of the composite wall is welded with an elbow reinforcing steel bar, the diameter of the elbow reinforcing steel bar is equal to that of the steel bar net of the composite wall, two ends of the elbow reinforcing steel bar are bent to form an elbow with the diameter of 20mm, and the elbow at the two ends is welded with the force transmission steel plate of the composite wall.
Preferably, the foundation beam reinforcement cage is made of C-shaped stirrups and pull-connection stirrups which are connected with the beam longitudinal bars through binding or welding.
Preferably, the groove-shaped foundation Liang Daishuan is provided with channel steel side grooves on two sides of the flange of the channel steel.
Preferably, a wood block is adhered to the inner side of the composite wall force transmission steel plate.
A method for connecting an assembled composite wallboard and a self-tapping screw assembly of a groove-shaped foundation beam comprises the following steps:
the first step: preparing an assembled composite wallboard with a force transmission steel plate in a factory; preparing a groove-shaped concrete foundation beam of the embedded channel steel; prefabricating a concrete floor slab;
and a second step of: paving high-performance mortar in the channel steel at the top of the groove-shaped foundation beam;
and a third step of: installing an assembled composite wallboard, embedding a composite wallboard force transmission steel plate into the channel steel of the foundation beam, and tightly attaching the composite wallboard force transmission steel plate to the inner wall of the channel steel;
fourth step: self-tapping nails freely penetrate through self-tapping nail holes of flanges of embedded channel steel of a foundation beam, and are connected with a composite wall force transmission steel plate in a self-tapping mode;
fifth step: adopting high-performance mortar to level the groove on the side surface of the channel steel;
sixth step: and (3) installing the concrete floor slab, and painting the wallboard by adopting the inner wall decorative paint.
The composite wallboard and the groove-shaped foundation beam self-tapping screw assembly solve 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 positioned and can effectively restrict the composite wallboard to generate bottom sliding under the earthquake action in the direction perpendicular to the wallboard; the technical problems that the upper surface of the traditional foundation beam is flat, the composite wallboard is inconvenient to position and the foundation beam is unfavorable for lateral constraint of the foundation beam to the bottom edge of the composite wallboard are solved. 2) The self-tapping screw has lower price, and the self-tapping screw block connection structure of the assembled composite wallboard and the groove-shaped foundation beam and the construction method solve the technical problem of the self-tapping screw connection assembly structure of the inner and outer She Shanpai reinforced concrete plates of the composite wallboard and the foundation beam. The construction site basically has no wet operation, and has the advantages of short construction period, little environmental pollution and the like. 3) The high-performance mortar layer in the embedded channel steel of the foundation beam can resist the earthquake shear force born by the composite wallboard under the bonding action of the high-performance mortar between the groove-shaped foundation beam and the inner and outer leaf concrete plates and the heat insulation plate of the composite wallboard.
The composite wallboard and the groove-shaped foundation beam self-tapping screw block centralized force transmission connection structure and the 20mm thick high-performance mortar continuous force transmission connection structure in the embedded channel steel of the groove-shaped foundation beam form a combination of a cooperative stress structure, and the combined self-tapping screw block centralized force transmission structure has the advantage of combining the self-tapping screw block centralized force transmission with the high-performance mortar layer continuous force transmission.
Drawings
FIG. 1 is a schematic plan view of a building;
FIG. 2 is a schematic cross-sectional view of a self-tapping screw assembly connection node of a composite wall panel and a channel-shaped foundation beam, when the composite wall panel is not connected with a floor slab;
FIG. 3 is a schematic cross-sectional view of a self-tapping screw block connection node when a composite wallboard is connected with a channel-shaped foundation beam and a floor slab;
FIG. 4 is a schematic perspective view of a composite wall panel and a self-tapping screw assembly of a channel-shaped foundation beam;
FIG. 5 is a further perspective view of a composite wall panel and channel foundation beam self-tapping screw block connection construction;
FIG. 6 is a schematic perspective view of a composite wall panel and a built-in steel structure of a self-tapping screw assembly connection structure of a channel-shaped foundation beam;
FIG. 7 is a further perspective view of a composite wall panel and self-tapping screw assembly connection construction of a channel foundation beam with a built-in steel structure;
FIG. 8 is a schematic perspective view of a channel-shaped foundation beam;
fig. 9 is a schematic diagram of the connection of composite wall panels, channel-shaped foundation beams and floor slabs.
In the figure: 1. assembled composite wall board; 2. concrete outer leaf plates; 3. a concrete inner leaf; 4. composite wall reinforcing steel bar net; 5. pulling and connecting the ribs; 6. the force transmission plate is connected with the steel bars; 7. reinforcing steel bars of the elbow; 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. the groove-shaped foundation Liang Daishuan is nailed with channel steel; 14. a groove on the side surface of the channel steel; 15. a channel steel peg; 16. a concrete floor slab; 17. floor reinforcing steel bar net; 18. self-tapping nails; 19. wood blocks; 20. and (5) a mortar cushion layer.
Description of the embodiments
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
As shown in fig. 1-9, the self-tapping screw assembly is a channel steel which is embedded in a groove-shaped foundation beam, is used as a force transmission steel plate and a connecting steel plate, is provided with double rows of anchoring studs at the lower part of a flange with self-tapping screw holes and is welded with a groove-shaped steel bar cage, is welded with a one-shaped force transmission steel plate on an inner leaf steel bar net and an outer leaf steel bar net of a composite wallboard, and adopts a steel-concrete combined block which is formed by connecting self-tapping screws and has an inner leaf-shaped steel plate with an outline of 40mm and comprises the foundation beam and the inner leaf and the outer leaf of the composite wallboard. Formation of self-tapping screw assembly: the middle reinforcing steel bar net of the inner and outer leaf concrete thin wall plates of the prefabricated composite wallboard is provided with a welded one-shaped force transmission steel plate, the groove-shaped foundation beam is embedded with channel steel which is welded with a groove-shaped reinforcing steel bar cage and is provided with double rows of bolts, the flange of the channel steel is provided with a self-tapping bolt hole which is also used as the force transmission steel plate and a connecting steel plate, the composite wall connecting steel plate is embedded into the groove-shaped foundation beam embedded channel steel, the wallboard force transmission steel plate is tightly attached to the foundation beam channel steel, the self-tapping bolt freely passes through the flange hole of the foundation beam channel steel and then is connected with an inner (outer) She Chuanli steel plate of the composite wall by self-tapping, the side grooves of the flange of the foundation beam channel steel are smoothed by mortar, and the embedded steel structure concrete thin wall plate block with the thickness of the outline concrete thin plate in the overlapping area of the foundation beam channel steel wing and the wallboard connecting plate is formed.
The groove-shaped foundation beam is a groove-shaped concrete foundation beam formed by casting concrete with a reinforcement cage and a foundation Liang Daishuan nail channel steel, wherein the reinforcement cage is restrained by C-shaped stirrups and consists of longitudinal ribs of the groove-shaped foundation beam. After high-performance mortar with the thickness of 20mm is paved in the channel steel on the upper part of the groove-shaped foundation beam, a composite wallboard with a first-shaped force transmission steel plate is placed in the groove, and a self-tapping screw is adopted to connect the inner (outer) She Chuanli steel plate of the composite wall after freely penetrating through the flange holes of the channel steel of the foundation Liang Daishuan nail.
The composite wallboard is an inner and outer She Shanpai steel mesh concrete sheet sandwich polyphenyl board wallboard which is formed by connecting an inner and outer steel mesh concrete wallboard with pull connection ribs and a sandwich insulation board, wherein a force transmission steel plate is welded at the lower end of the inner and outer steel mesh of the composite wallboard and is connected with a channel steel flange at the upper part of a foundation beam by self-tapping screws.
The combined connection structure is a synergistic stress structure combination consisting of a composite wallboard and foundation beam channel steel self-tapping screw block centralized force transmission connection structure and a 20mm thick high-performance mortar continuous force transmission connection structure.
The connection relation of the above structures is as follows:
assembled composite wallboard 1: the composite wall reinforcing steel bar net 4 and the heat preservation plate 8 are connected through the pull connection ribs 5, and the assembled composite wall board 1 is formed after concrete is poured on the concrete outer blade plate 2 and the concrete inner blade plate 3.
Assembled groove-shaped foundation beam: the groove-shaped foundation beam is prefabricated in a factory, and is formed by casting concrete into a reinforcement cage 12 formed by C-shaped stirrups, pull-joint stirrups and longitudinal beam ribs. The groove-shaped foundation beam is internally provided with a channel steel 13 with bolts, and the bolts 15 of the channel steel are welded at two sides of the bottom of the channel steel 13, which are close to the flanges of the channel steel. The composite wall force transmission steel plate 9 is embedded into the bolt channel steel 13 for assembly.
Self-tapping screw assembly is built-in steel structure: the channel steel 13 with anchoring studs and self-tapping screw holes on the flanges is arranged in the groove-shaped foundation beam, and has the functions of a force transmission steel plate and a connecting steel plate, the lower part of the channel steel 13 is anchored in the groove-shaped foundation beam through double rows of studs and welded with a C-shaped stirrup and a steel reinforcement cage 12 formed by a pull-joint stirrup and a beam longitudinal bar, the upper part of the channel steel 13 is connected with a self-tapping screw of a one-shaped force transmission steel plate welded at the bottom of an inner leaf steel reinforcement net and an outer leaf steel reinforcement net of the composite wallboard, and the formed inner and outer leaf connecting steel plates are internally provided with a built-in steel structure of a concrete block with the groove-shaped foundation and the composite wallboard with the outline of 40 mm.
Assembled concrete floor: the concrete floor is prefabricated in a factory and is formed by pouring concrete into a floor reinforcing steel bar net 17.
Assembled composite wallboard 1: the assembled sandwich heat-insulating concrete composite shear wallboard comprises a composite wall reinforcing steel mesh 4, a concrete outer blade plate 2 and a concrete inner blade plate 3, wherein the single-row reinforced concrete inner blade plate and the single-row reinforced concrete outer blade plate are formed, the single-row reinforced concrete inner blade plate and the single-row reinforced concrete outer blade plate are connected with a heat-insulating plate 8 through pull connection ribs 5 to form the composite heat-insulating wallboard, and self-tapping screw assembly connection steel structures are embedded in the wallboard. The assembled composite wallboard 1 with the self-tapping screw assembly and the steel structure has the remarkable advantages of light weight, good heat preservation performance, good earthquake resistance, good fire resistance and good durability, and quick connection and low manufacturing cost through the self-tapping screw assembly of the connecting steel plates.
Concrete outer blade 2 and concrete inner blade 3: the thin plate with the thickness of 40mm is formed by casting fine stone concrete with the strength of C30-C40.
Composite wall reinforcing mesh 4: is a thin and dense orthogonal steel bar consisting of horizontal and longitudinal steel bars.
And (5) pulling and connecting the rib: is a reinforced bar section with an elbow, is welded with a reinforced bar net 4 of a composite wall, and mainly plays roles of a tie concrete outer blade plate 2, a concrete inner blade plate 3 and a heat insulation plate 8.
Force transfer plate connecting steel bar 6: the horizontal distribution steel bars of the steel bar meshes of the inner and outer leaf concrete thin plates of the composite wall board are welded with the upper side of a force transmission steel plate 9 of the composite wall, and the force transmission plate connecting steel bars 6 are important component parts for the block force transmission of self-tapping screws.
Elbow reinforcing steel bar 7: the reinforcing steel bars are added in the middle of the height of the composite wall force transmission steel plate 9, the elbow reinforcing steel bars 7 are equal in diameter to the reinforcing steel bars of the reinforcing steel bar net, two ends of each elbow are bent to form an elbow of 20mm, and the two ends of each elbow 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 and outer wall boards is meshed with the dovetail groove of the heat-insulating wall board, so that the shearing resistance and the peeling resistance are enhanced; the sandwich insulation board can adopt polystyrene extruded sheet XPS, polystyrene foam plastic sheet EPS or phenolic foam composite board PUR and the like; the size of the sandwich heat-insulating board is flush with the upper and lower edges, the left and right edges of the assembled wallboard so as to facilitate the assembly and positioning of the wallboard and ensure the continuity of heat-insulating structures of the upper and lower wallboards.
Composite wall force transmission steel plate 9: when the vertical steel bar distribution space of the steel bar net is 100mm, the composite wall force transmission steel plate 9 is a strip 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 board in a factory; the composite wall force transmission steel plate 9 is embedded into the groove-shaped foundation Liang Daishuan and nailed with the channel steel 13 and connected by the tapping screw 18.
Channel-shaped concrete foundation beam 10: the channel-shaped concrete foundation beam 10 is a concrete beam in which a notched reinforcement cage is disposed. The C-shaped stirrup 11, the pull coupling bar and the beam longitudinal bar form a foundation beam reinforcement cage 12. The concrete strength of the foundation beam is C30-C40.
Channel foundation Liang Daishuan nails channel 13: is formed by a channel steel and a channel steel stud 15 welded at the lower part thereof, and is arranged in a foundation beam. The flanges of the channel steel 13 of the channel foundation Liang Daishuan are provided with the functions of connecting the steel plates and transmitting the steel plates, and the upper part of the channel steel 13 is provided with self-tapping screw holes. The self-tapping screw is adopted to freely penetrate through the hole of the flange of the channel steel 13 of the channel foundation Liang Daishuan and then is connected with the composite wall force transmission steel plate 9 in a self-tapping way, and the advantages of extrusion force, friction force among the steel plates and biting force of the steel plates and the self-tapping screw are achieved.
Channel side groove 14: the composite wall force transmission steel plate 9 is self-tapped and connected after a self-tapping screw 18 freely penetrates through a hole of the groove-shaped foundation Liang Daishuan, which is nailed with the flange 13, after the groove-shaped foundation Liang Daishuan is nailed with grooves on two sides of the flange 13 and the composite wall force transmission steel plate 9 is embedded into the groove-shaped foundation Liang Daishuan and nailed with the flange 13.
Channel pin 15: the double-row high-strength stud is welded at the bottom of the channel steel close to the flange, and mainly plays a role in shearing resistance and pulling resistance.
Concrete floor slab 16: the floor reinforcing steel bar net 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 thread is through-long, and the distance between the self-tapping screws is generally 25-50mm.
Wood block 19: the composite wall force transmission steel plate 9 is a wood block stuck to the inner side of the composite wall force transmission steel plate 9 by using a glass cement and other adhesives, and has the main function of facilitating a self-tapping screw to drill through the force transmission steel plate and then penetrate into the wood block, wherein the thickness of the wood block is 12mm.
Mortar cushion layer 20: is high-performance mortar with the strength of the channel steel 13 of the channel foundation Liang Daishuan paved with the channel steel 13 not lower than that of the channel steel 15 and the thickness of 20 mm. The high-performance mortar plays a role in improving the adhesion of the channel steel 13 of the channel foundation Liang Daishuan and the reinforced concrete slabs of the inner and outer leaves of the composite wallboard, and can resist the earthquake shear force born by the composite wallboard.
The assembled composite wallboard and the self-tapping screw block connection structure of the groove-shaped foundation beam and the construction method are as follows:
the first step: preparing an assembled composite wallboard with a force transmission steel plate in a factory; preparing a groove-shaped concrete foundation beam of the embedded channel steel; precast concrete floor slabs.
And a second step of: and paving high-performance mortar in the channel steel at the top of the groove-shaped foundation beam.
And a third step of: and (3) installing the assembled composite wallboard, embedding a composite wallboard force transmission steel plate into the channel steel of the foundation beam, and tightly attaching the composite wallboard force transmission steel plate to the inner wall of the channel steel.
Fourth step: and a self-tapping screw hole which freely passes through the flange of the embedded channel steel of the foundation beam is adopted, and a self-tapping connecting composite wall force transmission steel plate is adopted.
Fifth step: and trowelling the groove on the side surface of the channel steel by adopting high-performance mortar.
Sixth step: and (3) installing the concrete floor slab, and painting the wallboard by adopting the inner wall decorative paint.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (7)
1. The self-tapping screw block connection structure of the assembled composite wallboard and the groove-shaped foundation beam is characterized by comprising the assembled composite wallboard (1), a concrete floor slab (16) and the groove-shaped concrete foundation beam (10), wherein the assembled composite wallboard (1) is connected to the groove-shaped concrete foundation beam (10), and the concrete floor slab (16) is horizontally connected to the joint of the assembled composite wallboard (1) and the groove-shaped concrete foundation beam (10) and is respectively positioned at two sides of the assembled composite wallboard (1);
the assembled composite wallboard (1) comprises a concrete outer blade plate (2), a concrete inner blade plate (3) and a heat preservation plate (8) clamped between the concrete outer blade plate (2) and the concrete inner blade plate (3), wherein the concrete outer blade plate (2) and the concrete inner blade plate (3) are made by casting concrete through a composite wall reinforcing steel bar net (4), and the composite wall reinforcing steel bar net (4) and the heat preservation plate (8) are connected through a pull connection rib (5); a composite wall force transmission steel plate (9) is welded and connected to two side surfaces of the composite wall reinforcing steel net (4), and a force transmission plate connecting steel bar (6) is welded and connected to the upper part of the composite wall force transmission steel plate (9);
the concrete floor (16) is prefabricated in a factory and is made by casting concrete through a floor reinforcing mesh (17);
the groove-shaped concrete foundation beam (10) is prefabricated in a factory and is made by pouring concrete into a foundation beam reinforcement cage (12), groove-shaped foundation Liang Daishuan nail channel steel (13) is arranged on the groove-shaped concrete foundation beam (10), the opening of the groove-shaped foundation Liang Daishuan nail channel steel (13) faces upwards, channel steel bolts (15) penetrate downwards and are welded on two sides, close to a channel steel flange, of the bottom of the groove-shaped foundation Liang Daishuan nail channel steel (13), and two composite wall force transmission steel plates (9) are embedded into the inner side of the groove-shaped foundation Liang Daishuan nail channel steel (13) and are connected through self-tapping nails (18); a mortar cushion layer (20) is paved on the inner side of the groove-shaped foundation Liang Daishuan nailing channel steel (13);
the implementation of the connection structure comprises the following steps:
the first step: preparing an assembled composite wallboard with a force transmission steel plate in a factory; preparing a groove-shaped concrete foundation beam of the embedded channel steel; prefabricating a concrete floor slab;
and a second step of: paving high-performance mortar in the channel steel at the top of the groove-shaped foundation beam;
and a third step of: installing an assembled composite wallboard, embedding a composite wallboard force transmission steel plate into the channel steel of the foundation beam, and tightly attaching the composite wallboard force transmission steel plate to the inner wall of the channel steel;
fourth step: self-tapping nails freely penetrate through self-tapping nail holes of flanges of embedded channel steel of a foundation beam, and are connected with a composite wall force transmission steel plate in a self-tapping mode;
fifth step: adopting high-performance mortar to level the groove on the side surface of the channel steel;
sixth step: installing a concrete floor slab, and painting a wallboard by adopting an inner wall decorative paint;
the groove-shaped foundation Liang Daishuan is nailed with channel steel side grooves (14) on two sides of the flange of the channel steel (13);
and a wood block (19) is adhered to the inner side of the composite wall force transmission steel plate (9).
2. The self-tapping screw block connection structure of the assembled composite wallboard and the groove-shaped foundation beam according to 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 wallboard (1) in a factory.
3. The self-tapping screw block connection structure for assembled composite wall boards and channel-shaped foundation beams according to claim 1, wherein the pull connection ribs (5) are steel bar segments with elbows and are welded and connected to the composite wall steel bar net (4).
4. The self-tapping screw block connection structure for assembled composite wall boards and channel-shaped foundation beams according to claim 1, wherein the force transfer plate connection reinforcing bars (6) are horizontally distributed reinforcing bars of the composite wall reinforcing mesh (4).
5. The self-tapping screw block connection structure for the assembled composite wallboard and the groove-shaped foundation beam according to claim 1, wherein dovetail grooves are formed in the surface of the heat-insulating plate (8), the dovetail grooves are connected with dovetail grooves in the concrete outer blade plate (2) and the concrete inner blade plate (3) in a meshed mode, and the heat-insulating plate (8) is flush with the upper edge, the lower edge, the left edge and the right edge of the assembled wallboard.
6. The self-tapping screw block connection structure of the assembled composite wallboard and the groove-shaped foundation beam according to 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 that of the steel bar of the composite wall steel bar net (4), two ends of the elbow reinforcing steel bar (7) are bent to form an elbow of 20mm, and the elbows at the two ends are welded with the composite wall force transmission steel plate (9).
7. The self-tapping screw block connection structure of the assembled composite wallboard and the groove-shaped foundation beam according to claim 1, wherein the foundation beam reinforcement cage (12) is formed by binding or welding C-shaped stirrups (11) and pull-connection stirrups with longitudinal beam ribs.
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