CN218437756U - Assembly type linear composite wallboard self-tapping nail cluster and post-cast strip combined connection structure - Google Patents

Abstract

The utility model discloses a compound wallboard self-tapping nail glomeration of assembled one-type and post-cast strip built-up connection structure belongs to assembled concrete building structure engineering technical field. The method comprises the following steps: the self-tapping screw assembly block is an inner and outer leaf single-row reinforcing mesh concrete thin plate of an upper and a lower composite wallboards with force transmission steel plates, and adopts a built-in steel structure concrete thin wallboard block with the thickness of the concrete thin plate outside the upper and the lower force transmission steel plate areas connected by the self-tapping screw and the connecting steel plates thereof; and the post-cast strip is a reinforced concrete thin wallboard strip formed by reserving post-cast strip steel bars for prefabricating the upper and lower composite wallboard concrete thin wallboards, overlapping the post-cast strip area, supporting a funnel-equipped template, pouring fine aggregate concrete and curing. The utility model has the technical advantages of good connection shearing resistance, durability and thermal performance.

Description

Assembly type linear composite wallboard self-tapping nail cluster and post-cast strip combined connection structure

Technical Field

The utility model relates to a compound wallboard self-tapping nail glomeration of assembled one-piece and post-cast strip composite connection structure belongs to assembled concrete building structure engineering technical field.

Background

In order to promote the building industrialization and housing industrialization process, the assembly type building is developed rapidly, but the problems that the rural buildings are weak in shock resistance and have no energy-saving emission reduction measures are prominent.

The research and development of the technology of the house with ultra-low energy consumption are very concerned in accordance with the engineering boundary at home and abroad. However, the construction technology, especially the assembly type construction technology, of the low-multi-layer ultralow-energy-consumption house in the villages and small towns is quite lack, and the problem of groove technology bottleneck exists: (1) The traditional shear wall reinforcement structure has large distribution space and large diameter of reinforcing steel bars, and if the reinforcing steel bar lapping anchoring technology is adopted, the height of the section of a post-cast strip is large, the cast-in-place quantity is large, and the requirement that the height of the section of post-cast concrete required for assembling the inner and outer leaf single-row reinforcing mesh concrete thin plate sandwich polystyrene board wall board is not more than 180mm is difficult to meet; (2) The traditional technology of sleeve connecting steel bars of the shear wall is not suitable for assembling the single-row reinforcing mesh concrete sheet sandwich polystyrene board wallboard with inner and outer blades, and the thickness of the inner and outer She Baoqiang boards is only 40mm to 60mm; (3) The traditional steel plate bolt connection technology of the shear wall is not suitable for assembling the single-row reinforcing mesh concrete thin plate sandwich polystyrene board wall boards with the inner leaf and the outer leaf, because the polystyrene board is clamped between the inner part 5363 and the outer part She Qiangban and the polystyrene board does not allow holes to be punched and bolts to be penetrated in consideration of the heat bridge problem, the inner leaf concrete thin wall board and the outer leaf concrete thin wall board are difficult to assemble respectively by adopting the traditional steel plate bolt connection technology; (4) The price of the self-tapping screw is much lower than that of the bolt, the thin-wall light steel keels of the thin-wall light steel keel structure are connected by 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 realized through meshing with the self-tapping screw, and no extrusion friction force exists; however, the assembly of the inner and outer She Shanpai steel mesh concrete sheet sandwich polystyrene board wall board belongs to the assembly of reinforced concrete wall boards, and simultaneously requires friction force and snap-in force, so that the technology of directly connecting light steel keels by the existing tapping screws is obviously different from the assembly and force transmission requirements of frame columns and cross-shaped constructional columns of ecological wall boards; (5) In the traditional assembly of the cast-in-place strip of the shear wall, because the cast-in-place quantity of concrete is large and the mold expansion force of the concrete is large, a temporary construction support needs to be additionally arranged to position a template, the cost is high, the flexibility is poor, and the assembly is not suitable for the construction of the concrete post-cast strip of the concrete sheet sandwich polystyrene board wall board with the inner leaf and the outer leaf single-row reinforcing mesh.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a fabricated one-piece composite wall panel self-tapping nail aggregate piece and post-cast strip composite connection structure, its outer wall be an interior outer leaf single steel bar net concrete sheet sandwich polyphenyl board constitute structure, enclosure, heat preservation integration composite wall board, its inner wall be concrete frame (truss) fill ecological environmental protection material and constitute ecological wallboard.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

the assembled one-shaped composite wallboard self-tapping nail cluster and post-cast strip combined connecting structure comprises an assembled one-shaped composite wallboard with a self-tapping nail cluster steel structure and a post-cast strip structure;

take one-piece composite wall panel of assembled of self-tapping nail glomeration steel structure includes: the prefabricated upper wallboard comprises an upper wallboard concrete outer leaf and an upper wallboard concrete inner leaf, the upper wallboard concrete outer leaf is made into a first single-row reinforced concrete outer leaf by pouring concrete on an upper wallboard outer leaf reinforced mesh, the upper wallboard concrete inner leaf is made into a first single-row reinforced concrete inner leaf by pouring concrete on an upper wallboard inner leaf reinforced mesh, the single-row reinforced concrete outer leaf is connected with the single-row reinforced concrete inner leaf and an upper wallboard sandwich insulation board through a tie bar, and the upper wallboard sandwich insulation board is arranged between the upper wallboard concrete outer leaf and the upper wallboard concrete inner leaf;

the assembled lower wallboard comprises a lower wallboard concrete outer leaf and a lower wallboard concrete inner leaf, the lower wallboard concrete outer leaf is made into a second single-row reinforced concrete outer leaf plate by pouring concrete on a lower wallboard outer leaf reinforced mesh, the lower wallboard concrete inner leaf is made into a second single-row reinforced concrete inner leaf plate by pouring concrete on a lower wallboard inner leaf reinforced mesh, the second single-row reinforced concrete outer leaf plate is connected with the second single-row reinforced concrete inner leaf plate and a lower wallboard sandwich insulation plate through a tie bar, and the lower wallboard sandwich insulation plate is arranged between the lower wallboard concrete outer leaf and the lower wallboard concrete inner leaf;

the self-tapping nail block steel structure is pre-embedded at two sides of the assembled upper wallboard and the assembled lower wallboard and comprises an upper force transmission steel plate and a lower force transmission steel plate, the upper force transmission steel plate is welded with the vertical distribution steel bars of the inner leaf steel bar mesh and the outer leaf steel bar mesh of the upper wallboard and is welded with the steel plate connecting steel bars and the elbow reinforcing steel bars arranged on the upper wallboard, and the lower force transmission steel plate is welded with the vertical distribution steel bars of the inner leaf steel bar mesh and the outer leaf steel bar mesh of the lower wallboard and is welded with the steel plate connecting steel bars and the elbow reinforcing steel bars arranged on the lower wallboard;

the wood block is bonded with the upper force transmission steel plate and the lower force transmission steel plate through glass cement or structural cement; the upper force transmission steel plate and the lower force transmission steel plate are connected through the connecting steel plate by self-tapping nails;

the post-cast strip structure comprises a post-cast strip arranged in the middle of the connecting position of the assembled upper wallboard and the assembled lower wallboard, and the post-cast strip is a concrete thin wallboard strip formed after the reinforcing steel bars reserved between the upper composite wallboard concrete thin wallboard and the lower composite wallboard concrete thin wallboard are lapped in a post-cast strip area and fine aggregate concrete is poured through a funnel-equipped template.

Preferably, dovetail grooves are formed in the surfaces of the upper wallboard sandwich insulation board and the lower wallboard sandwich insulation board, and the inner and outer leaf concrete wallboards are meshed with the dovetail grooves of the insulation wallboards.

Preferably, the upper wallboard sandwich heat-insulation board and the lower wallboard sandwich heat-insulation board are made of polystyrene extruded sheets or polystyrene foam plastic sheets or phenolic foam composite sheets; the sizes of the upper wallboard sandwich insulation board and the lower wallboard sandwich insulation board are flush with the upper edge, the lower edge, the left edge and the right edge of the assembled wallboard.

Preferably, the steel plate connecting steel bars are horizontally distributed steel bars of the composite wallboard inner and outer leaf concrete sheet steel bar mesh, and are welded and connected with the upper force transmission steel plate and the lower force transmission steel plate.

Preferably, the both ends of elbow reinforcing bar are the elbow, both ends the elbow respectively with pass the power steel sheet with pass power steel sheet welded connection down, the diameter of elbow reinforcing bar equals with the reinforcing bar diameter of composite wall panel inner and outer leaf reinforcing bar net.

Preferably, the upper force transmission steel plate and the lower force transmission steel plate are respectively welded to the bottom of an inner leaf concrete thin wall plate and an outer leaf concrete thin wall plate steel mesh upper wall plate of the composite wall plate and the upper part of a lower wall plate in a factory prefabrication mode, the inner leaf concrete thin wall plate and the outer leaf concrete thin wall plate steel mesh of the prefabricated composite wall plate are welded to the surface of the upper force transmission steel plate and the surface of the lower force transmission steel plate area are reserved with grooves into which the connecting steel plates can be placed, the connecting steel plates are placed into the reserved grooves and are connected with the upper force transmission steel plate and the lower force transmission steel plate through self-tapping nails.

Preferably, the template with the funnel comprises a funnel, a steel template, a baffle plate, a peripheral stiffening steel pipe, a vertical stiffening steel pipe and an anchoring steel sheet, wherein the funnel is a square steel pipe with a cut angle at the bottom and an inclined bottom plate welded, and the funnel is welded with the outer side surface of the steel template in an attached manner; the baffle is a rectangular steel plate with an L-shaped ear plate at the upper part, and can reciprocate in a gap between the funnel and the steel template; the peripheral stiffening steel pipe is welded along the periphery of the steel template and is welded with the side face of the funnel; the vertical stiffening steel pipes are welded and connected in the midspan of the steel templates on two sides of the funnel; the anchoring steel sheet and the reinforcing mesh at the post-pouring strip are welded, and the long tapping screw freely penetrates through the vertical stiffening steel pipe and the hole in the steel template to attach the template with the funnel and the inserting plate to the wall body.

The specific method of the combined connecting structure is as follows:

firstly, prefabricating an upper and lower assembly type I-shaped composite wallboard with self-tapping nail steel structures in a factory;

secondly, butt-jointing the inner and outer leaf concrete thin wall boards of the upper and lower I-shaped composite wall boards on site, wherein the two ends of the inner and outer leaf concrete thin wall boards are provided with self-tapping nails and blocks for connecting with the steel-structured concrete thin wall board buttresses, and the cross section of the concrete wall board at the butt-joint front buttresses needs to be coated with glass cement;

thirdly, placing a connecting steel plate with a self-tapping screw hole in the reserved groove of the prefabricated composite wallboard, attaching upper and lower force transmission steel plates to the outside of the connecting steel plate, and using a self-tapping screw to freely penetrate through the connecting steel plate and then self-tapping to connect the upper and lower force transmission steel plates;

fourthly, troweling the groove in which the connecting steel plate is placed by using high-performance mortar;

fifthly, attaching the template with the funnel and the inserting plate to the upper and lower composite wallboards by using a long self-tapping screw to be in self-tapping connection with the anchoring steel sheet;

sixthly, inserting a plug board after pouring the post-pouring strip fine stone concrete;

and seventhly, removing the template to form a self-tapping nail cluster block connection and post-pouring strip combined force transmission structure, and painting the wallboard with waterproof paint.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:

(1) The self-tapping nail cluster solves four technical problems: firstly, the problem of thin and dense reinforcing mesh integrated connection of the inner leaf concrete thin wallboard and the outer leaf concrete thin wallboard of the composite wallboard is solved; secondly, the problem that temporary piers with post-cast strip heights are required to be reserved in the assembly process of the upper and lower composite wallboards; thirdly, the steel plate is connected with the concrete thin wall plate through bolts, and the interface between the concrete thin plate and the sandwich polystyrene board is a connection construction blind area; fourthly, the composite wall board adopts the thermal bridge problem that steel plate screws are in through connection, and the heat engineering performance requirements of the house with ultralow energy consumption are met.

(2) The post-cast strip solves three technical problems: firstly, the defect that the cast-in-place quantity of the cast-in-place strip is large after the steel bars of the traditional shear wall are lapped is overcome, because the inner leaf concrete thin wall plate and the outer leaf concrete thin wall plate of the composite wall plate are thin and the lapping connection size of the dense steel bar mesh is small, for the steel bars with the steel bar mesh steel bar diameter of 4mm, the lapping anchoring length can only be 120mm to meet the specification requirement of 30d (d is the steel bar diameter), the section sizes of the concrete cast-in-place strips of the inner leaf concrete wall plate and the outer leaf concrete wall plate are respectively 40mm multiplied by 120mm, and the concrete casting quantity is small; the thickness of the traditional shear wall is generally not less than 160mm, the anchoring length of a steel bar with the diameter of 12mm can meet the standard requirement of 30d (d is the diameter of the steel bar), the cross section size of a post-cast strip is 160mm multiplied by 360mm, the post-cast strip is 6 times of the sum of the cross section areas of cast-in-place strips of the inner leaf concrete wall plate and the outer leaf concrete wall plate of the composite wall, and the concrete pouring amount is large. Secondly, the thin concrete wallboards with the inner leaves and the outer leaves are adopted to adopt the thin and dense reinforcing mesh, thereby solving the technical problems that the traditional shear wall has thick distributed reinforcing steel bar diameter, large reinforcing steel bar interval, high reinforcing steel bar sleeve connection cost and is not suitable for thin wallboard connection. Thirdly, the cast-in-place connecting seam of the upper and lower composite wallboard concrete sheets is compact and continuous in force transmission, and the problems of high-efficiency stress and rainwater leakage prevention are solved.

(3) The utility model discloses a composite connection structure, has the advantage of self-tapping nail glomeration connection and post-cast strip connection combination concurrently, has not only solved about the construction stage composite wall panel assembling process and need leave the interim buttress problem of post-cast strip height, has solved the continuous biography power of use stage post-cast strip and has concentrated the high-efficient atress of biography power collaborative work with the self-tapping nail glomeration simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic of a composite wall construction;

FIG. 3 is a schematic view of the internal reinforcing bars and the embedded steel members of the composite wall;

FIG. 4 is a schematic illustration of a post-cast strip configuration;

FIG. 5 is a schematic diagram of a composite node strip;

FIG. 6 is a schematic view of wall panel inner (outer) She Gouzao;

FIG. 7 is a structural view of self-tapping nail cluster reinforcing bars and steel plates; the (a) is an inner schematic view, and the (b) is an outer schematic view.

Fig. 8 is a schematic view of the connection of a formwork with a funnel and insert plate to a post-cast strip reinforcing mesh; the (a) is an outside schematic view, and the (b) is an inside schematic view.

FIG. 9 is a schematic view of a post-cast strip steel bar structure after the self-tapping nail cluster blocks of the upper and lower composite wallboards are connected; (a) The structure of the post-cast strip steel bars after the upper composite wallboard self-tapping nail cluster block is connected is shown in a schematic diagram, and the structure of the post-cast strip steel bars after the lower composite wallboard self-tapping nail cluster block is connected is shown in a schematic diagram.

FIG. 10 is a diagram of a formwork configuration with a funnel and an insert plate; (a) is a whole schematic diagram of a template with a funnel and an inserting plate; and (b) is a schematic diagram of the separation of the template with the funnel and the inserting plate.

In the figure: 1. an assembled top wall panel; 2. an assembled lower wallboard; 3. a sandwich insulation board of the upper wall board; 4. a sandwich insulation board of the lower wall board; 5. an upper wallboard concrete outer leaf plate; 6. a lower wallboard concrete outer leaf plate; 7. an upper wallboard concrete inner leaf plate; 8. lower wallboard concrete inner leaf plates; 9. an outer leaf reinforcing mesh of the upper wallboard; 10. the outer leaf reinforcing mesh of the lower wallboard; 11. an outer leaf reinforcing mesh of the upper wallboard; 12. the inner leaf reinforcing mesh of the lower wallboard; 13. tying the reinforcing steel bars; 14. connecting steel bars with steel plates; 15. elbow reinforcing steel bars; 16. uploading a force transmission steel plate; 17. a lower force transmission steel plate; 18. connecting steel plates; 19. wood blocks; 20. post-pouring strips; 21. self-tapping screw; 22. early-strength high-performance fine stone coagulation; 23. a groove; 24. flexible structural adhesive; 25. a funnel; 26. a steel form; 27. a baffle plate; 28. a peripheral stiffening steel pipe; 29. a vertical stiffening steel pipe; 30. a long self-tapping screw; 31. and (5) anchoring the steel sheet.

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.

The utility model provides a take assembled one-shaped composite wall panel of self-tapping nail glomeration steel structure (as shown in figure 2), inside arrangement of reinforcement and pre-buried steel construction (as shown in figure 3), post-cast strip structure (as shown in figure 4), combination node strip (as shown in figure 5), inside and outside leaf concrete wall panel structure (as shown in figure 6), self-tapping nail glomeration reinforcing bar and steel sheet detail construction (as shown in figure 7): the prefabricated high-performance concrete wall comprises an assembled upper wallboard 1, an assembled lower wallboard 2, an upper wallboard sandwich thermal insulation board 3, a lower wallboard sandwich thermal insulation board 4, an upper wallboard concrete outer leaf board 5, a lower wallboard concrete outer leaf board 6, an upper wallboard concrete inner leaf board 7, a lower wallboard concrete inner leaf board 8, an upper wallboard outer leaf reinforcing mesh 9, a lower wallboard outer leaf reinforcing mesh 10, an upper wallboard inner leaf reinforcing mesh 11, a lower wallboard inner leaf reinforcing mesh 12, a tie reinforcing bar 13, a steel plate connecting reinforcing bar 14, an elbow reinforcing bar 15, an upper force transmission steel plate 16, a lower force transmission steel plate 17, a connecting steel plate 18, a wood block 19, a post-pouring strip 20, a self-tapping nail 21, early-strength high-performance fine stone concrete 22, a groove 23 for filling and leveling high-performance mortar and a flexible structural adhesive 24.

A formwork construction with funnels and inserts is proposed (as shown in figure 8): the steel formwork structure comprises a funnel 25, a steel formwork 26, a baffle 27, a peripheral stiffening steel pipe 28, a vertical stiffening steel pipe 29, a long tapping screw 30 and an anchoring steel sheet 31.

The connection relationship of the parts in the connection structure is as follows:

assembled top wall panel 1: the upper wallboard inner leaf reinforcing mesh 11, the upper wallboard outer leaf reinforcing mesh 9 and the upper wallboard sandwich insulation board 3 are connected 13 through tie bars, and the upper wallboard concrete outer leaf 5 and the upper wallboard concrete inner leaf 7 are poured to form the assembled upper wallboard 1.

Assembled lower wallboard 2: the lower wallboard inner leaf reinforcing mesh 12, the lower wallboard outer leaf reinforcing mesh 10 and the lower wallboard sandwich insulation board 4 are connected through the tie bars 13, and the lower wallboard concrete outer leaf 6 and the lower wallboard concrete inner leaf 8 are poured to form the assembled lower wallboard 2.

Built-in steel structure of thin wallboard of self-tapping nail glomeration concrete: the upper force transmission steel plate 16 is welded with the vertical distributed steel bars of the reinforcing mesh of the inner leaf and the outer leaf of the wallboard, and is welded with the steel plate connecting steel bars 14 and the elbow reinforcing steel bars 15, so that the wood block 19 of the self-tapping screw self-tapping force transmission steel plate is conveniently bonded with the upper force transmission steel plate 16 and the lower force transmission steel plate 17 through glass cement or structural adhesive; the upper force transmission steel plate 16 and the lower force transmission steel plate 17 are connected through a connecting steel plate 18 by a self-tapping screw 21 to form a built-in steel structure of the self-tapping screw block concrete thin wall plate.

The self-tapping nail cluster block and the post-cast strip are connected in a combined manner as shown in fig. 4 and 5: the concave wallboard is provided with a groove 23 for placing the self-tapping nail cluster steel structure connecting steel plate, the groove is leveled by mortar, and the post-cast strip 20 is poured with fine aggregate concrete 22 and maintained to form the combined connection of the self-tapping nail cluster and the post-cast strip.

Form panel with funnel and insert plate (as shown in figures 8 and 10): by the funnel of taking the funnel template of funnel 25 and steel form 26 welded, steel form 26 outside surface welding peripheral stiffening steel pipe 28 and vertical stiffening steel pipe 29, the long tapping screw 30 passes the vertical stiffening steel pipe of template 29 and the hole on the steel form 26 and the thin wallboard reinforcing bar net welded anchor steel sheet 31 self-tapping connection in interior outer leaf concrete to the realization takes the wall ability of attaching of the template of funnel and picture peg.

The assembled upper wallboard 1 with the self-tapping nail block connecting steel structure is an assembled sandwich heat-insulating concrete composite shear wallboard, a single-row reinforced concrete inner leaf plate is formed by an inner leaf reinforced mesh 11 and inner leaf concrete 7, a single-row reinforced concrete outer leaf plate is formed by an outer leaf reinforced mesh 9 and concrete outer leaves 5, and the single-row reinforced concrete inner leaf plate and a sandwich heat-insulating plate 3 form the composite heat-insulating wallboard through tie bars 13, and the self-tapping nail block connecting steel structure is pre-embedded in the wallboard as shown in the figure 2 and the figure 3. The assembled upper wallboard 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 group connecting steel plates.

The assembled lower wallboard 2 with the self-tapping nail block connecting steel structure is a composite shear wallboard with the same structure as the assembled upper wallboard 1 with the self-tapping nail block connecting steel structure, a single-row reinforced concrete inner blade plate is formed by an inner blade reinforcing mesh 12 and inner blade concrete 8, a single-row reinforced concrete outer blade plate is formed by an outer blade reinforcing mesh 10 and a concrete outer blade 6, a composite heat-insulation wallboard is formed by the composite heat-insulation wallboard and a sandwich heat-insulation board 4 through a tie reinforcing bar 13, and the self-tapping nail block connecting steel structure is pre-embedded in the wallboard as shown in the figure 2 and the figure 3. Take assembled lower wallboard 2 of self-tapping nail collectivium connection steel structure.

The upper wallboard sandwich heat-insulation board 3 and the lower wallboard sandwich heat-insulation board 4: 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 a polystyrene extruded sheet XPS, a polystyrene foam plastic sheet EPS or a phenolic foam composite sheet 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 steel plate connecting steel bars 14 are horizontally distributed steel bars of the concrete sheet steel bar mesh in the composite wallboard, are welded with the upper force transmission steel plate 16 and the lower force transmission steel plate 17, and are important components of force transmission of the self-tapping screw assembly block.

The elbow reinforcing steel bar 15 is a reinforcing steel bar which is respectively added at the middle part of the height of the upper force transmission steel plate 16 and the lower force transmission steel plate 17, the elbow reinforcing steel bar 15 and the reinforcing mesh steel bar have the same diameter, the two ends of the elbow are bent by 20mm, and the elbows at the two ends are respectively welded with the upper force transmission steel plate 16 and the lower force transmission steel plate 17.

The steel bar net comprises an upper force transmission steel plate 16, a lower force transmission steel plate 17 and a connecting steel plate 18, wherein when the vertical steel bar distribution interval of the steel bar net is 100mm, the upper force transmission steel plate 16 and the lower force transmission steel plate 17 are strip-shaped steel plates with the length of 220mm, the width of 40mm and the thickness of not less than 3mm; an upper force transfer steel plate 16 and a lower force transfer steel plate 17 are prefabricated at the bottom of the upper wallboard and the upper part of the lower wallboard respectively in a factory; the surface layers of the areas of the upper force transmission steel plate 16 and the lower force transmission steel plate 17 welded on the reinforcing mesh of the inner leaf concrete thin wallboard of the prefabricated composite wallboard are provided with grooves 23 into which the connecting steel plates 18 can be placed, the connecting steel plates 18 are placed into the grooves 23 and are connected with the upper force transmission steel plate 16 and the lower force transmission steel plate 17 by self-tapping screws 21; the length of the connecting steel plate 18 is not more than that of the upper force transmission steel plate 16 and the lower force transmission steel plate 17, the height of the connecting steel plate is the sum of the heights of the upper force transmission steel plate 16 and the lower force transmission steel plate 17, and the thickness of the connecting steel plate is not less than 3mm; the connecting steel plate 18 needs to be punched when penetrating through the self-tapping screw, after the self-tapping screw is drilled into the force transmission steel plate, the connecting steel plate and the force transmission steel plate have friction force between the steel plates generated by corresponding extrusion force, and simultaneously, the engaging force of the steel plates and the self-tapping screw can be strengthened.

The wood block 19 is adhered to the back of the upper force transmission steel plate 16 and the lower force transmission steel plate 17 by adhesives such as glass cement, and has the main function of facilitating the self-tapping screw to drill into the force transmission steel plate.

The post-cast strip 20 is a post-cast concrete strip which is reserved in the inner leaf concrete thin plate and the outer leaf concrete thin plate of the assembled upper composite wallboard, is 120mm-180mm in height and is used for lap joint of reinforcing meshes of the inner leaf concrete thin plate and the outer leaf concrete thin plate of the upper composite wallboard and the lower composite wallboard, and the post-cast strip 20 is cast with fine aggregate concrete 22 and is maintained to form a post-cast connection area of the assembled wallboard.

The self-drilling self-tapping screw 21 can be an ST 6.3 type hexagonal tail drilling self-tapping screw, the total length of the self-tapping screw is 20mm, the through length of a thread is long, and the distance between the self-tapping screws is 25-50mm generally.

The early-strength high-performance concrete 22 is high-performance fine stone concrete added with concrete additives such as an early strength agent and the like, can be a high-performance concrete material formed by mixing crushed stones with the particle size of about 5mm in a high-strength grouting material according to a certain proportion and adding the early strength agent, has the strength of about C60 generally, and has the characteristics of short initial setting time, high early strength, small shrinkage, good fluidity, convenience in maintenance under a low-temperature condition and the like; the high-strength grouting material is mixed with crushed stones with the particle size of 5mm, so that the contractility of the grouting material can be further reduced, the using amount of the grouting material is reduced, and the engineering cost is reduced.

The high-performance mortar for filling and leveling the groove 23 is high-strength mortar with the strength not lower than M15.

The flexible structural adhesive 24 can be glass adhesive, and is coated on the inner and outer leaf concrete thin plates of the upper and lower walls before the wall is assembled to connect two end buttresses of the steel structure with self-tapping nails to prevent rainwater leakage and heat bridge at the joint of the wall.

The funnel 25 is a square steel pipe with a bottom chamfer and an inclined bottom plate welded, the outer diameter of the steel pipe is 100mm, the thickness of the steel pipe is 2mm, the overall height of the steel pipe is 200mm, and the height of the chamfer is 120mm; it is welded to the outside face of the steel form 26 and is used mainly as the pouring port for the fine aggregate concrete 22.

The steel form 26 is a rectangular steel plate with a thickness of 2mm, the size of which is 20mm longer and wider than the post-cast strip 20, and the steel form is mainly used as a plane positioning form of the fine aggregate concrete 22.

The baffle plate 27 is a rectangular steel plate with an L-shaped ear plate at the upper part, the thickness is 2mm, the height is 160mm, and after the fine aggregate concrete 22 is poured, the baffle plate 27 is immediately inserted downwards into a gap between the funnel 25 and the steel template 26 so as to isolate the residual concrete in the funnel 25 and level the post-poured concrete strips.

The peripheral stiffening steel pipe 28 is a square steel pipe with the thickness of 2mm and the side length of 20mm, and the peripheral stiffening steel pipe 28 is welded along the periphery of the steel template 26 and is welded with the side surface of the funnel 25.

The vertical stiffening steel pipe 29 is a vertical stiffening steel pipe welded in the midspan of the steel templates 26 at two sides of the funnel 25 to enhance the out-of-plane rigidity of the steel templates 26, and the steel pipe is perforated, and a long self-tapping screw can freely pass through a hole on the stiffening steel pipe and a hole on the template 26 at a corresponding position.

And the anchoring steel sheet 31 is welded with the reinforcing mesh at the post-cast strip 20, and a long self-tapping screw 30 freely penetrates through the vertical stiffening steel pipe 29 and the hole on the steel template 26 to self-tap and connect the anchoring steel sheet 31 so as to attach the template with the funnel and the inserting plate to the wall body.

The house adopting the structure comprises the following concrete steps: (1) Firstly, determining the arrangement position and the specific size of the assembled one-line-shaped sandwich heat-insulating concrete composite shear wallboard according to the structural arrangement of the building design, and carrying out stress checking calculation on the wallboard according to the designed sectional size and material strength of the wallboard; designing and checking stress calculation of the connection node structure of the composite wallboard; and drawing a detailed structural drawing according to the design scheme of the composite wallboard and the assembly connection node thereof, and carrying out the manufacturing, transportation and on-site assembly construction of the prefabricated composite wallboard.

(2) The construction process of the self-tapping nail cluster and post-cast strip combined connecting structure of the assembled one-shaped composite wallboard comprises the following steps: 1) Prefabricating an upper concrete thin plate sandwich polystyrene wallboard and a lower concrete thin plate sandwich polystyrene wallboard with an upper force transmission steel plate and a lower force transmission steel plate; 2) Coating glass cement on concrete sheet block buttresses with self-tapping nail and block connection steel structures on inner and outer leaves of the upper and lower composite wallboards, and placing the upper composite wallboard on the lower composite wallboard; 3) Embedding the connecting steel plates into the reserved grooves of the inner leaf concrete sheets and the outer leaf concrete sheets of the prefabricated composite wall panels, and adopting self-tapping screws to freely penetrate through the reserved holes of the connecting steel plates to self-tap the force transmission steel plates embedded in the upper composite wall panel and the lower composite wall panel; 4) Leveling the groove by high-performance mortar; 5) The template with the funnel and the inserting plate is tightly attached to the upper and lower composite wallboards and is in self-tapping connection with the anchoring steel sheet by using a long self-tapping screw 30, and fine stone concrete is poured; 6) And (3) removing the template to form a self-tapping nail cluster block connection and post-pouring strip combined force transmission structure, and painting the wallboard with waterproof paint.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims (6)

1. The combined connection structure of the self-tapping nail cluster block and the post-pouring strip of the assembled one-shaped composite wallboard is characterized by comprising an assembled one-shaped composite wallboard with a self-tapping nail cluster block steel structure and a post-pouring strip structure;

take one-piece composite wall panel of assembled of self-tapping nail glomeration steel structure includes: the prefabricated upper wall board (1) comprises an upper wall board concrete outer leaf (5) and an upper wall board concrete inner leaf (7), the upper wall board concrete outer leaf (5) is made into a first single-row reinforced concrete outer leaf board by pouring concrete into an upper wall board outer leaf reinforced mesh (9), the upper wall board concrete inner leaf (7) is made into a first single-row reinforced concrete inner leaf board by pouring concrete into an upper wall board inner leaf reinforced mesh (11), the single-row reinforced concrete outer leaf board is connected with the single-row reinforced concrete inner leaf board and an upper wall board sandwich insulation board (3) through tie bars (13), and the upper wall board sandwich insulation board (3) is arranged between the upper wall board concrete outer leaf (5) and the upper wall board concrete inner leaf (7);

the assembled lower wallboard (2) comprises a lower wallboard concrete outer leaf (6) and a lower wallboard concrete inner leaf (8), the lower wallboard concrete outer leaf (6) is made into a second single-row reinforced concrete outer leaf through concrete pouring of a lower wallboard outer leaf reinforced mesh (10), the lower wallboard concrete inner leaf (8) is made into a second single-row reinforced concrete inner leaf through concrete pouring of a lower wallboard inner leaf reinforced mesh (12), the second single-row reinforced concrete outer leaf is connected with the second single-row reinforced concrete inner leaf and a lower wallboard sandwich insulation board (4) through a tie steel bar (13), and the lower wallboard sandwich insulation board (4) is arranged between the lower wallboard concrete outer leaf (6) and the lower wallboard concrete inner leaf (8);

the self-tapping nail block steel structure is pre-buried at two sides of the assembled upper wallboard (1) and the assembled lower wallboard (2), the self-tapping nail block steel structure comprises an upper force transmission steel plate (16) and a lower force transmission steel plate (17), the upper force transmission steel plate (16) is welded with the steel bars vertically distributed in the upper wallboard and the outer leaf steel bar net and is welded with the steel plate connecting steel bars (14) and the elbow reinforcing steel bars (15) arranged on the upper wallboard, and the lower force transmission steel plate (17) is welded with the steel bars vertically distributed in the lower wallboard or the outer leaf steel bar net and is welded with the steel plate connecting steel bars (14) and the elbow reinforcing steel bars (15) arranged on the lower wallboard;

the wood block (19) is bonded with the upper force transmission steel plate (16) and the lower force transmission steel plate (17) through glass cement or structural cement; the upper force transmission steel plate (16) and the lower force transmission steel plate (17) are connected through a connecting steel plate (18) by a self-tapping screw (21);

the post-cast strip structure comprises a post-cast strip (20) arranged in the middle of the connecting position of the assembled upper wallboard (1) and the assembled lower wallboard (2), and the post-cast strip (20) is a concrete thin wallboard strip formed by overlapping a steel bar reserved between the upper composite wallboard concrete thin wallboard and the lower composite wallboard concrete thin wallboard in a post-cast strip area and pouring fine aggregate concrete through a funnel-equipped template;

dovetail grooves are formed in the surfaces of the upper wallboard sandwich insulation board (3) and the lower wallboard sandwich insulation board (4), and the inner and outer leaf concrete wallboards are meshed with the dovetail grooves of the insulation wallboards.

2. The assembled one-piece composite wallboard self-tapping nail cluster and post-cast strip combined connection structure according to claim 1, wherein the upper wallboard sandwich insulation board (3) and the lower wallboard sandwich insulation board (4) are made of polystyrene extruded sheets or polystyrene foam plastic sheets or phenolic foam composite boards; the sizes of the upper wallboard sandwich insulation board (3) and the lower wallboard sandwich insulation board (4) are flush with the upper edge, the lower edge, the left edge and the right edge of the assembled wallboard.

3. The fabricated unitary composite wall panel self-tapping cluster and post-cast strip composite connection structure of claim 1, wherein the steel plate connecting bars (14) are horizontally distributed bars of composite wall panel inner and outer leaf concrete slab reinforcing mesh, and are welded to the upper force transmission steel plate (16) and the lower force transmission steel plate (17).

4. The structure of the self-tapping nail cluster and post-cast strip combination of fabricated one-piece composite wall panel according to claim 1, wherein the elbow reinforcing steel bar (15) has two ends with elbows welded to the upper force transmission steel plate (16) and the lower force transmission steel plate (17), and the diameter of the elbow reinforcing steel bar (15) is equal to the diameter of the steel bar of the inner and outer leaf steel bar meshes of the composite wall panel.

5. The assembled one-piece composite wall panel self-tapping nail cluster and post-cast strip combined connection structure according to claim 1, wherein the upper force transmission steel plate (16) and the lower force transmission steel plate (17) are respectively welded on the bottom of the inner leaf concrete thin wall panel reinforcing mesh upper wall panel and the upper part of the lower wall panel of the composite wall panel in a factory prefabrication mode, grooves (23) capable of being placed into the connection steel plates (18) are reserved on the surfaces of the inner leaf concrete thin wall panel reinforcing mesh upper wall panel and the outer leaf concrete thin wall panel reinforcing mesh lower wall panel of the prefabricated composite wall panel, the connection steel plates (18) are placed into the reserved grooves (23) and are connected with the upper force transmission steel plate (16) and the lower force transmission steel plate (17) through the self-tapping nails (21).

6. The assembled one-piece composite wallboard self-tapping nail cluster and post-cast strip combined connection structure according to claim 1, wherein the template with the funnel comprises a funnel (25), a steel template (26), a baffle plate (27), a peripheral stiffening steel pipe (28), a vertical stiffening steel pipe (29) and an anchoring steel sheet (31), the funnel (25) is a square steel pipe with a bottom chamfer and a welded inclined bottom plate, and the funnel is welded with the outer side surface of the steel template (26); the baffle plate (27) is a rectangular steel plate with an L-shaped ear plate at the upper part, and can reciprocate in a gap between the hopper (25) and the steel template (26); the peripheral stiffening steel pipes (28) are welded along the periphery of the steel moulding plate (26) and are welded with the side surface of the funnel (25); the vertical stiffening steel pipes (29) are welded and connected in the midspan of the steel templates (26) at two sides of the funnel (25); the anchoring steel sheet (31) is welded with a reinforcing mesh at the post-pouring strip (20), and a long tapping screw (30) freely penetrates through the vertical stiffening steel pipe (29) and the hole on the steel template (26) to attach the template with the funnel and the inserting plate to the wall.

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