CN114753694B - Method for connecting assembled composite wallboard and cantilever-free composite roof self-tapping screw assembly - Google Patents
Method for connecting assembled composite wallboard and cantilever-free composite roof self-tapping screw assembly Download PDFInfo
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- CN114753694B CN114753694B CN202210273896.5A CN202210273896A CN114753694B CN 114753694 B CN114753694 B CN 114753694B CN 202210273896 A CN202210273896 A CN 202210273896A CN 114753694 B CN114753694 B CN 114753694B
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- 239000002131 composite material Substances 0.000 title claims abstract description 619
- 238000010079 rubber tapping Methods 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 404
- 239000010959 steel Substances 0.000 claims abstract description 404
- 230000005540 biological transmission Effects 0.000 claims abstract description 180
- 239000004567 concrete Substances 0.000 claims abstract description 144
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 39
- 238000009413 insulation Methods 0.000 claims abstract description 37
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 35
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 238000010422 painting Methods 0.000 claims description 9
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 238000005034 decoration Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 229920001821 foam rubber Polymers 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 24
- 238000010276 construction Methods 0.000 description 18
- 239000011150 reinforced concrete Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004321 preservation Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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
-
- 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
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- 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
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a block connection structure and a method for an assembled composite wallboard and a self-tapping screw of a non-overhanging composite roof, and belongs to the technical field of assembled concrete building structure engineering. The self-tapping screw assembly is a composite wallboard with a force transmission steel plate, an inner and outer leaf single-row steel bar net concrete sheet of a composite parapet wall, a composite roof with a one-shaped and L-shaped connecting steel plate, and an inner steel structure concrete thin wallboard block with the thickness of the force transmission steel plate area outline concrete sheet connected by the self-tapping screw is adopted; high-performance mortar is paved between the joints of the composite roof, the composite wallboard and the composite parapet wall, and a connecting structure of self-tapping screw assembly centralized force transmission and post-pouring strip continuous force transmission cooperative stress is formed. The invention has the technical advantages of good connection shearing resistance and durability, the roof and the heat insulation board at the joint position of the roof, the wallboard and the parapet wall, and the joint of the composite wallboard and the roof is filled with foam rubber, so the invention has good thermal engineering performance and is suitable for building houses with ultra-low energy consumption.
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 non-overhanging composite roof, and belongs to the technical field of assembled concrete building structure engineering.
Background
The technical development of the ultra-low energy consumption house is consistent and very concerned by the engineering world at home and abroad. However, the construction technology of the low-energy-consumption multi-layer house in villages and towns, especially the assembly construction technology is quite deficient. The technical bottleneck problems existing in the prior art are as follows: (1) The building (house) cover of the traditional assembly type concrete shear wall structure mostly adopts an overlapped building cover, has large cast-in-situ quantity, long construction period and poor heat insulation performance, is easy to form a cold bridge at joints among the building cover, a wall body and the building cover, and is difficult to be applied to building of houses with ultra-low energy consumption. Meanwhile, the joint of the floor is affected by the ambient temperature and freeze thawing cycle, so that the waterproof performance is difficult to ensure; (2) The traditional precast concrete shear wall and building (house) cover steel bars are thick and have large intervals, the cracking problem of wallboards and floors is common, and the waterproof and heat-insulating performances of the building are greatly influenced. (3) The parapet wall of people's roof is mostly built by adopting masonry structure to traditional no outer cornice, and its is great, the shock resistance is poor, construction cycle is long, is difficult to satisfy the construction assembly demand. (4) The traditional technology for bolting steel plates of shear walls and roofs is not suitable for assembling inner and outer She Shanpai reinforced mesh concrete thin plate sandwich polyphenyl plate wallboards and composite roofs, because polyphenyl plates are clamped between inner and outer leaf wallboards and the polyphenyl plates do not allow punching through bolts in consideration of the heat bridge problem, the traditional steel plate bolting technology is difficult to assemble composite wallboard concrete thin plates and composite roofs respectively; (5) The price of the self-tapping screw is much lower than that of a bolt, the cold-formed thin-wall section steel of the light steel keel structure is connected by the self-tapping screw, the self-tapping screw penetrates through two light steel keels connected in sequence, and force transmission between the light steel keels is realized through 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 polystyrene plate wallboards and the composite roof belongs to the assembly of the reinforced concrete wallboards and the composite roof, and simultaneously friction force and biting force are required, so that the existing technology for directly connecting the light steel keels by the self-tapping nails is obviously different from the assembly of the composite wallboards and the composite roof and the force transmission requirement thereof; (5) The traditional prefabricated reinforced concrete roof laminated slab is assembled with a concrete beam or a shear wall in a cast-in-place mode through a post-pouring belt at a supporting end, and the structures such as parapet walls, waterproof layers and the like are required to be carried out after roof construction maintenance is completed, so that the construction period is long, the cost is high, and the engineering quality is difficult to guarantee.
Disclosure of Invention
The invention aims to solve the technical problem of providing a self-tapping screw block connection structure and a construction method for an assembled composite wallboard and a composite roof without overhanging, wherein high-performance mortar is paved between the composite roof and joints of the composite wallboard and a composite parapet wall to form a connection structure with cooperative stress of self-tapping screw block concentrated force transmission and continuous force transmission of post-pouring strips, and the shearing resistance and durability of each connection are good.
In order to solve the technical problems, the invention adopts the following technical scheme:
the self-tapping screw block connection structure comprises a composite wallboard, a composite roof and a composite parapet, wherein the composite roof is connected to the top of the composite wallboard, and the composite parapet is connected to the upper surface of the composite roof;
the composite wallboard comprises a composite wallboard outer leaf concrete plate, a composite wallboard inner leaf concrete plate and a heat-insulating plate, wherein the composite wallboard reinforcement mesh pouring concrete forms the composite wallboard outer leaf concrete plate and the composite wallboard inner leaf concrete plate, and the heat-insulating plate is arranged between the composite wallboard outer leaf concrete plate and the composite wallboard inner leaf concrete plate and is connected with the composite wallboard outer leaf concrete plate and the composite wallboard inner leaf concrete plate through tie bars; a plurality of composite wallboard force transmission steel plates are welded on the composite wallboard steel bar net, the composite wallboard force transmission steel plates are symmetrically arranged on two sides of the composite wallboard steel bar net, and the composite wallboard force transmission steel plates are also welded and connected with force transmission steel plate connecting steel bars and elbow reinforcing steel bars; the lateral surface groove of the composite wallboard force transmission steel plate is formed in the outer side of the composite wallboard force transmission steel plate;
the composite roof comprises a composite roof inner blade plate and a composite roof outer blade plate, wherein an insulation board is arranged between the composite roof inner blade plate and the composite roof outer blade plate, the composite roof inner blade plate and the composite roof outer blade plate are formed by casting concrete through a composite roof reinforcing steel bar net, and the composite roof inner blade plate, the composite roof outer blade plate and the insulation board are connected through composite roof tie bars; welding a plurality of composite roof upper side L-shaped connecting steel plates and a plurality of composite roof lower side L-shaped connecting steel plates on the composite roof reinforcing steel bar net, wherein the composite roof upper side L-shaped connecting steel plates are arranged at the top of the composite roof, the composite roof lower side L-shaped connecting steel plates are arranged at the bottom of the composite roof, and one limb of the composite roof lower side L-shaped connecting steel plates is embedded into a side groove of the composite wallboard force transmission steel plate and is connected with the composite wallboard force transmission steel plate through self-tapping nails; a composite roof force transmission steel plate is welded at the joint of the inner and outer leaf concrete plates on the outer vertical end face of the composite roof reinforcing mesh, the lower part of a first connecting steel plate on the upper side of the composite roof and the upper part of a first connecting steel plate on the lower side of the composite roof are welded and connected on the outer side of the composite roof force transmission steel plate, and the lower part of the first connecting steel plate on the lower side of the composite roof is embedded into a groove on the side face of the composite wallboard force transmission steel plate and is connected with the composite wallboard force transmission steel plate through a self-tapping screw;
the composite parapet comprises a composite parapet outer leaf concrete plate, a composite parapet inner leaf concrete plate and the heat-insulating plate, wherein the composite parapet outer leaf concrete plate and the composite parapet inner leaf concrete plate are formed by pouring concrete through the composite parapet reinforcing steel mesh, the heat-insulating plate is arranged between the composite parapet outer leaf concrete plate and the composite parapet inner leaf concrete plate, and the composite parapet outer leaf concrete plate, the composite parapet inner leaf concrete plate and the heat-insulating plate are connected through tie bars; the two sides of the composite parapet reinforcing mesh are respectively welded with a plurality of composite parapet force transmission steel plates, the outer side of the composite parapet force transmission steel plates is provided with composite parapet force transmission steel plate side grooves, the upper part of a composite parapet upper side one-shaped connecting steel plate is embedded into the composite parapet force transmission steel plate side grooves and is connected with the composite parapet force transmission steel plates through self-tapping nails, and one limb of the composite parapet upper side L-shaped connecting steel plate is embedded into the composite parapet force transmission steel plate side grooves and is connected with the composite parapet force transmission steel plates through self-tapping nails.
Preferably, the force transmission steel plate connecting steel bars are horizontally distributed steel bars of the inner and outer leaf concrete thin plate steel bar meshes of the composite wallboard, the composite roof and the composite parapet.
Preferably, the two ends of the elbow reinforcing steel bar are provided with elbows, and the elbow reinforcing steel bar is welded on the welding connection sides of the force transmission steel plate of the composite roof, the L-shaped connecting steel plate of the lower side of the composite roof, the L-shaped connecting steel plate of the upper side of the composite roof, the force transmission steel plate of the composite parapet wall and the force transmission steel bar.
Preferably, the inner composite roof blade and the outer composite roof blade are connected in a sealing manner at the end part of the cornice, the inner composite roof blade is disconnected at the connection position with the composite wall plate, and the insulation board is filled at the disconnection position.
Preferably, one limb of the L-shaped connecting steel plate at the lower side of the composite roof and one limb of the L-shaped connecting steel plate at the upper side of the composite roof are welded and connected with the composite roof reinforcing steel net, and are embedded in the composite roof concrete sheet after concrete is poured, and the other limb extends out of the inner leaf plate and the outer leaf plate.
Preferably, a composite wallboard mortar cushion layer with the thickness of not less than 10mm is paved between the inner leaf plate of the composite roof and the composite wallboard.
Preferably, a foam rubber filling strip is arranged between the heat insulation board of the composite roof and the heat insulation board of the composite wallboard.
Preferably, a parapet mortar cushion layer is paved between the outer blade plate of the composite roof and the composite parapet.
Preferably, wood blocks are adhered to the inner side surfaces of the composite wallboard force transmission steel plate and the composite parapet force transmission steel plate.
The method for connecting the assembled composite wallboard and the self-tapping screw assembly structure of the cantilever-free composite roof comprises the following steps of:
the first step: preparing a composite wallboard with a force transmission steel plate in a factory; preparing a composite roof with a one-shaped connecting steel plate and an L-shaped connecting steel plate; preparing a composite parapet wall with a force transmission steel plate;
and a second step of: installing a composite wallboard, smearing high-performance mortar on inner and outer leaf concrete plates at the top end of the composite wallboard, installing a composite floor, embedding an L-shaped connecting steel plate and a one-shaped connecting steel plate at the lower side of an inner leaf plate of the composite floor concrete into a side groove of a force transmission steel plate of the composite wallboard, enabling the L-shaped connecting steel plate with self-tapping screw holes to be clung to the force transmission steel of the composite wallboard, and bonding mortar cushion layers on inner and outer leaf plates of the composite wallboard with inner leaf plates of the composite roof;
and a third step of: the self-tapping screw is adopted to freely pass through the L-shaped connecting steel plate and the one-shaped connecting steel plate of the composite roof which are used as the force transmission steel plate and the connecting steel plate, and the self-tapping connecting composite wall force transmission steel plate;
fourth step: paving high-performance mortar on the outer blade plate of the composite roof, installing a composite parapet, embedding an L-shaped connecting steel plate and a one-shaped connecting steel plate on the upper side of the outer blade plate of the composite floor into a groove on the side surface of the force transmission steel plate of the composite parapet, and enabling the L-shaped connecting steel plate with self-tapping screw holes to be clung to the force transmission steel of the composite wall plate, wherein mortar cushion layers on the inner blade plate and the outer blade plate of the composite parapet are adhered to the inner blade plate of the composite roof;
fifth step: the self-tapping screw is adopted to freely pass through the L-shaped connecting steel plate and the one-shaped connecting steel plate of the composite roof which are used as the force transmission steel plate and the connecting steel plate, and the self-tapping screw is used for connecting the force transmission steel plate of the composite parapet wall;
sixth step: trowelling grooves on the side surfaces of the force transmission steel plates of the composite wall boards by adopting high-performance mortar and grooves on the side surfaces of the force transmission steel plates of the composite parapet walls;
seventh step: filling foaming glue between the polyphenyl thermal insulation boards of the joints of the composite wallboard and the composite roof;
eighth step: and painting the outer wall, the roof, the parapet wall and the splicing seams by adopting the outer wall painting paint, and painting the inner wall and the assembly seams by adopting the inner wall decoration paint.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
(1) The self-tapping screw assembly solves three technical problems: firstly, the problem that the composite wallboard and the composite parapet inner and outer leaf concrete thin wallboard are integrally connected with the thin and dense reinforcing steel bar net of the composite roof; secondly, the steel plate is connected with the concrete thin wall plate through bolts, and the problem that the interface between the concrete thin plate and the sandwich polyphenyl plate is a connecting construction blind area exists; thirdly, the heat bridge problem exists in the through connection of the composite wallboard and the composite roof by adopting steel plate screws, and the heat bridge is suitable for the thermal performance requirement of the ultralow-energy-consumption house.
(2) The composite wallboard and the assembled parapet composite roof solve three technical problems: firstly, overcome traditional shear force wall and prefabricated superimposed sheet roof reinforcing bar overlap joint post-cast strip cast-in-situ volume big drawback, self-tapping screw assembly connection structure is the dry-type connection structure, has effectively reduced on-the-spot wet work load. Secondly, the thin wall plates of the inner and outer leaf concrete are fine and dense reinforcing steel bar meshes, so that the technical problems that the diameter of the distributed reinforcing steel bars of the traditional shear wall is large, the spacing between the reinforcing steel bars is large, and the wall plates and the roof are easy to crack are solved. Thirdly, the integral assembly of the parapet without the overhanging roof is realized, the heat insulation board is compounded in the roof, the heat insulation performance of the building roof is improved, and the building roof is suitable for building of ultra-low energy consumption houses; the parapet wall adopts a composite wall structure, has light dead weight, reliable connection with a composite roof and good earthquake resistance.
(3) The combined connection structure has the advantages of centralized force transmission by self-tapping screw assembly connection and continuous force transmission by high-performance mortar cushion layer, and solves the problem of high-efficiency stress of cooperative work of continuous force transmission by post-pouring belt and centralized force transmission by self-tapping screw assembly at the using stage. Meanwhile, the joint seam between the composite wallboard and the composite parapet wall and the composite roof concrete sheet is compact and continuous in force transmission, and the foam heat-insulating material is filled between the composite wallboard and the composite roof heat-insulating board, so that the problems of high-efficiency stress, rainwater leakage prevention and cold bridge prevention are solved, and the composite wallboard is suitable for the thermal performance requirement of the ultralow-energy-consumption house.
Drawings
FIG. 1 is a cross-sectional view of a connection structure of an assembled composite wallboard and a self-tapping screw set of a non-overhanging composite roof;
FIG. 2 is a cross-sectional view of a construction in which the assembled composite wall panel is not connected to the self-tapping screw set of the non-overhanging composite roof;
FIG. 3 is a cross-sectional view of a connection construction of assembled composite wall panels and a strip of non-overhanging composite roof mortar;
FIG. 4 is a schematic view of an assembled composite wall panel and self-tapping screw assembly of a non-overhanging composite roof, with built-in steel structures;
FIG. 5 is a schematic view of a self-tapping screw assembly forming process;
FIG. 6 is a schematic view of an assembled composite wall panel construction
FIG. 7 is a schematic view of a composite roof construction;
FIG. 8 is a schematic view of a composite parapet construction;
FIG. 9 is a schematic illustration of the connection of an assembled composite wall panel to a composite roof, a composite parapet;
in the figure: 1. composite wall panels; 2. a composite roof; 3. composite parapet wall; 4. composite wallboard outer leaf concrete slab; 5. composite wallboard inner leaf concrete slab; 6. composite wallboard reinforcing mesh; 7. tying the steel bars; 8. the force transmission steel plate is connected with the steel bar; 9. reinforcing steel bars of the elbow; 10. composite wallboard force transmission steel plate; 11. composite roof inner leaf plate; 12. composite roof outer leaf plates; 13. composite roof reinforcement mesh; 14. a composite roof force transmission steel plate; 15. the lower side of the composite roof is connected with a steel plate in a shape; 16. an L-shaped connecting steel plate at the lower side of the composite roof; 17. the upper side of the composite roof is connected with a steel plate in a shape; 18. an L-shaped connecting steel plate is arranged on the upper side of the composite roof; 19. composite parapet outer leaf concrete slab; 20. composite parapet inner leaf concrete slab; 21. composite parapet reinforcing mesh; 22. composite parapet force transmission steel plate; 23. side grooves of a force transmission steel plate of the composite wallboard; 24. a side groove of a force transmission steel plate of the composite parapet wall; 25. a composite wallboard mortar cushion layer; 26. filling foam rubber strips; 27. a parapet mortar cushion layer; 28. self-tapping nails; 29. wood blocks; 30. a thermal insulation board; 31. and a waterproof layer.
Detailed Description
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 assembled composite wallboard is an inner and outer She Shanpai reinforced mesh concrete thin plate sandwich polyphenyl board wallboard consisting of an inner and outer reinforced mesh concrete wallboard connected by tie bars and a sandwich insulation board, wherein a force transmission steel plate is welded at the upper end of the reinforced mesh of the inner and outer reinforced mesh of the composite wallboard on the top layer of a building, and a one-shaped and L-shaped connecting steel plate welded on the reinforced mesh of the inner reinforced mesh of the reinforced mesh concrete plate of the composite roof is connected by self-tapping nails.
The composite roof is prefabricated in a factory and consists of an inner leaf reinforced net concrete sheet and an outer leaf reinforced net concrete sheet connected by tie bars and a sandwich insulation board. The composite roof is connected with the composite wallboard and the composite parapet wall through connecting steel plates welded on the inner and outer leaf concrete sheet steel meshes by self-tapping screws to form a self-tapping screw assembly structure. The inner and outer leaf concrete sheets of the composite roof are connected and sealed at the end parts of the roof to improve the durability of the internal heat insulation board. The composite roof inner leaf concrete slab is cut off from the wallboard concrete at the connection position of the composite wallboard, the cut-off position is filled with a heat insulation board to block a cold bridge at the connection position of the roof and the wallboard, two sides of the inner leaf board at the connection position of the composite roof and the composite wallboard are respectively embedded with a connecting steel plate welded on a reinforcing steel bar net and an L-shaped connecting steel plate which is also used as a force transmission steel plate and a connecting steel plate, and the connecting steel plate is connected with the force transmission steel plate at the upper end of the composite wallboard by self-tapping nails. The two sides of the outer blade plate at the connection position of the composite roof and the composite parapet wall are respectively embedded with a connecting steel plate welded on the reinforcing steel bar net and an L-shaped connecting steel plate which is used as a force transmission steel plate and a connecting steel plate, and the L-shaped connecting steel plate is connected with the force transmission steel plate at the lower end of the composite parapet wall by self-tapping nails.
The composite parapet wall is prefabricated in a factory, an inner and outer She Shanpai steel bar mesh concrete sheet sandwich polyphenyl plate wallboard consisting of an inner and outer steel bar mesh concrete wallboard connected by tie bars and a sandwich insulation board is connected at the top of the wallboard to form a parapet wall end, a force transmission steel plate is welded at the lower end of the inner and outer steel bar mesh of the composite parapet wall, and a one-shaped and L-shaped connecting steel plate welded on the outer steel bar mesh of the composite roof is connected by self-tapping nails.
The self-tapping screw assembly comprises a composite wallboard and composite roof self-tapping screw connecting assembly structure and a composite parapet and composite roof self-tapping screw connecting structure.
(1) Composite wall panel and composite roof self-tapping screw connect the assembly structure, include: the composite wall plate inner blade plate and the composite roof inner blade plate are L-shaped self-tapping screw assembly, and the composite wall plate outer blade plate and the composite roof inner blade plate are one-shaped self-tapping screw assembly. The composite wallboard inner blade plate and the composite roof inner blade plate L-shaped self-tapping screw connecting block are inner She Shan rows of reinforced net concrete thin plates of the composite wallboard with force transmission steel plates, and inner She Shan rows of reinforced net concrete thin plates of the composite roof with L-shaped connecting steel plates which are both used as force transmission steel plates and connecting steel plates, and the composite wallboard force transmission steel plates connected by the self-tapping screw and the composite roof L-shaped connecting steel plate region are embedded steel structure concrete thin wall plate blocks with the thickness of the concrete thin plates, which are steel-concrete combined thin wall plate blocks. The composite wall board outer blade plate and the composite roof inner blade plate are integrated by a self-tapping screw, the composite wall board outer blade single-row reinforced net concrete sheet with a force transmission steel plate is the built-in steel structure concrete thin wall board block with the thickness of the steel sheet outside the composite wall board area, and one side of the built-in steel structure concrete thin wall board block is welded on the roof force transmission steel plate and embedded in the composite roof inner blade plate concrete.
(2) The self-tapping screw connection structure of the composite parapet wall and the composite roof comprises: the composite parapet inner blade plate and the composite roof outer blade plate L-shaped self-tapping screw assembly and the composite parapet outer blade plate and the composite roof outer blade plate L-shaped self-tapping screw assembly are the inner She Shan rows of reinforced net concrete thin plates of the composite parapet with the force transmission steel plates, and the outer blade single row of reinforced net concrete thin plates of the composite roof with the L-shaped connecting steel plates which are both used as the force transmission steel plates and the connecting steel plates, and the composite parapet force transmission steel plates and the inner hidden steel structure concrete thin plate block with the thickness of the composite roof L-shaped connecting steel plate area by adopting self-tapping screws. The composite wall board outer blade plate and the composite roof L-shaped self-tapping screw are connected together, and the composite wall board outer blade plate and the composite roof L-shaped self-tapping screw are an outer blade single-row steel mesh concrete sheet with a force transmission steel plate, and a single-row steel mesh concrete sheet with one side welded on the roof force transmission steel plate and embedded in the composite roof outer blade plate concrete, and the composite wall board outer blade plate and the composite roof are connected by adopting the self-tapping screw, and are a built-in steel structure concrete thin wall board block with the thickness of the steel plate area and the steel plate area.
Formation of self-tapping screw assembly: the method comprises the steps of (1) prefabricating composite wallboards and inner and outer leaf concrete thin wallboards of a composite parapet, wherein a welded force transmission steel plate is arranged on a middle reinforcing steel net of the inner and outer leaf concrete thin wallboards of the prefabricated composite parapet, a welded L-shaped connecting steel plate and a L-shaped connecting steel plate are arranged on middle reinforcing steel nets of the inner and outer leaf concrete thin wallboards of the prefabricated composite roof, embedding the L-shaped connecting steel plate and the L-shaped connecting steel plate with self-tapping screw holes on the composite roof into a force transmission steel plate side groove of the composite wallboard and tightly attaching the L-shaped connecting steel plate and the L-shaped connecting steel plate, self-tapping the force transmission steel plate after the self-tapping screw freely passes through the L-shaped connecting steel plate and the L-shaped connecting steel plate holes, trowelling the groove embedded into the connecting steel plate, and forming the built-in steel structure concrete thin wallboard block with the thickness of the concrete thin plate with the outline of the force transmission steel plate and the connecting steel plate.
The combined connection structure comprises a combined connection structure of a composite wallboard and a composite roof, and a combined connection structure of a composite parapet wall and a composite roof, and is a combined connection structure for connecting and concentrating force transmission by self-tapping screws and continuously transmitting force by a mortar cushion layer in a lump and cooperating manner.
The connection relation of each part is as follows: composite wallboard 1: the composite wallboard reinforcing mesh 6 and the heat insulation board 30 are connected through tie bars 7, and the composite wallboard 1 is formed after the composite wallboard outer leaf concrete plate 4 and the composite wallboard inner leaf concrete plate 5 are poured.
Composite roof 2: the composite roof steel bar net 13 and the heat preservation plate 30 are connected through the tie steel bars 7, and the composite roof 2 is formed after the composite roof inner blade plate 11 and the composite roof outer blade plate 12 are poured.
Composite parapet 3: the composite parapet steel bar net 21 and the heat preservation plate 30 are connected through tie steel bars 7, and the composite parapet 3 is formed after the composite parapet outer leaf concrete plate 19 and the composite parapet inner leaf concrete plate 20 are poured.
Built-in steel structure of self-tapping screw block concrete sheet of composite wallboard and composite roof: the composite wallboard force transmission steel plate 10 is welded with the distribution steel bars of the inner and outer leaf steel bar meshes of the wallboard, and is welded with the composite wallboard force transmission steel plate connecting steel bars 8 and the composite wallboard elbow reinforcing steel bars 9; the one-shaped connecting steel plate 15 at the lower side of the composite roof is welded with the force transmission steel plate 14 of the composite roof and is connected with the steel bar net 13 of the composite roof, and the L-shaped connecting steel plate 16 at the lower side of the composite roof, which is used as the force transmission steel plate and the connecting steel plate, is welded with the steel bar net 13 of the composite roof. The wooden block 19 of the self-tapping force transmission steel plate is conveniently bonded with the composite wall force transmission steel plate 10 through glass cement or structural cement; the self-tapping screw is adopted to freely pass through the one-shaped connecting steel plate 15 at the lower side of the composite roof and the L-shaped connecting steel plate 16 at the lower side of the composite roof which is used as a force transmission steel plate and a connecting steel plate to self-tap and connect the force transmission steel plate 10 of the composite wall, so as to form the built-in steel structure of the self-tapping screw assembly concrete thin wall plate.
Built-in steel structure of self-tapping screw block concrete sheet of composite parapet wall and composite roof: the composite parapet force transmission steel plate 22 is welded with the distribution steel bars of the inner and outer leaf steel bar meshes of the parapet, and is welded with the parapet force transmission steel plate connecting steel bars 8 and the parapet wallboard elbow reinforcing steel bars 9; the first connecting steel plate 17 on the upper side of the composite roof is welded with the force transmission steel plate 14 of the composite roof and is connected with the steel bar net 13 of the composite roof, and the L-shaped connecting steel plate 18 on the upper side of the composite roof, which is used as the force transmission steel plate and the connecting steel plate, is welded with the steel bar net 13 of the composite roof. The wooden block 19 which is convenient for self-tapping the force transmission steel plate by the self-tapping screw is bonded with the composite parapet force transmission steel plate 22 through glass cement or structural cement; the self-tapping screw freely passes through the first connecting steel plate 17 at the upper side of the composite roof and the self-tapping screw hole of the L-shaped connecting steel plate 18 at the upper side of the composite roof which is used as a force transmission steel plate and a connecting steel plate is used for self-tapping and connecting the force transmission steel plate 22 of the composite parapet wall, so that the built-in steel structure of the self-tapping screw assembly concrete thin wall plate is formed.
The self-tapping screw assembly is connected with the post-pouring strip in a combined way: the composite wallboard force transmission steel plate side grooves 23 and 24 of the composite wallboard and the composite parapet are trowelled by high-performance mortar, the composite wallboard mortar cushion layer 25 and the parapet mortar cushion layer 27, and after curing, self-tapping screw blocks are formed and connected with the mortar cushion layer strips in a combined manner.
Composite wallboard 1: the assembled sandwich heat-insulating concrete composite shear wallboard is characterized in that a single-row reinforced concrete sheet is formed by a composite wallboard reinforcing mesh 6, a composite wallboard outer leaf concrete slab 4 and a composite wallboard inner leaf concrete slab 5, a composite wallboard heat-insulating board 30 forms a composite heat-insulating wallboard through drawknot reinforcing bars 7, and a self-tapping screw assembly connection steel structure is embedded in the wallboard. The composite wallboard 1 with the self-tapping screw assembly and the steel structure has the remarkable advantages of light weight, good heat preservation performance, anti-seismic performance, fire resistance and durability, and quick connection and low manufacturing cost through the self-tapping screw assembly of the connecting steel plate.
Composite roof 2: the assembled sandwich heat-insulating concrete composite roof board is formed by a single-row reinforced concrete sheet formed by a composite roof reinforcing steel mesh 13, a composite roof inner blade plate 11 and a composite roof outer blade plate 12, and a composite roof board heat-insulating board 30 forms the composite heat-insulating roof board through tie reinforcing steel bars 7, and a self-tapping screw assembly connecting steel structure is embedded in the roof board. The composite roof inner leaf concrete slab is broken at the connection position of the composite wall plate and the wall plate concrete, and the broken position is filled with the heat insulation plate so as to block a cold bridge at the connection position of the roof and the wall plate. The composite roof 2 has light weight, good heat preservation performance, fire resistance and durability, and is suitable for buildings with ultra-low energy consumption, such as houses.
Composite parapet 3: the assembled sandwich heat-insulating concrete composite parapet wall board is characterized in that a single-row reinforced concrete sheet is formed by a composite parapet wall reinforcing steel mesh 21, a composite parapet wall outer leaf concrete plate 19 and a composite parapet wall inner leaf concrete plate 20, the composite parapet wall heat-insulating board 30 forms the composite heat-insulating parapet wall board through tie bars 7, and a self-tapping screw assembly connection steel structure is embedded in the parapet wall board. The composite parapet wall 3 has the advantages of light weight and good stress and earthquake resistance when being connected with the self-tapping nails of the composite floor slab.
Composite wall panel outer leaf concrete slab 4 and composite wall panel inner leaf concrete slab 5: the composite wallboard is a concrete sheet formed by pouring C30-C40 fine stone concrete, the inner and outer leaf concrete sheets of the composite wallboard are tied through tie bars 7, and the inner composite insulation board 30 is arranged.
Composite wallboard reinforcing mesh 6: the single-row reinforcing mesh for the inner and outer leaf concrete plates of the composite wallboard is formed by binding or welding horizontally-distributed reinforcing bars and vertically-distributed reinforcing bars.
Tie bar 7: the steel bars are connected with a single-row steel bar net of the tie composite wallboard, the composite roof and the inner and outer leaf concrete plates.
Force transmission steel plate connecting steel bar 8: the composite wallboard, the composite roof and the composite parapet wall are horizontally distributed steel bars of an inner and outer leaf concrete sheet steel bar net, the horizontally distributed steel bars are welded with a composite wallboard force transmission steel plate 10, a composite roof force transmission steel plate 14, a composite roof lower side L-shaped connecting steel plate 16, a composite roof upper side L-shaped connecting steel plate 18 and a composite parapet wall force transmission steel plate 22, and the force transmission steel plate connecting steel bars 8 are important components for self-tapping screw assembly force transmission.
Elbow reinforcing steel bar 9: the reinforcing steel bars are added to the middle part of the height of the steel plate at the welding side of the composite wallboard force transmission steel plate 10, the composite roof force transmission steel plate 14, the composite roof lower side L-shaped connecting steel plate 16, the composite roof upper side L-shaped connecting steel plate 18 and the composite parapet force transmission steel plate 22 and the force transmission steel plate connecting steel bar 8, the elbow reinforcing steel bars 9 are equal in diameter to the reinforcing steel bar mesh steel bars, the two ends of the elbow are bent to form an elbow with 20mm, and the two ends of the elbow are respectively welded with the steel plates.
Composite wallboard force transmission steel plate 10: when the vertical steel bar distribution space of the composite wall steel bar net is 100mm, the composite wall plate force transmission steel plate 10 is a strip steel plate with the length of 220mm, the width of 40mm and the thickness of not less than 3mm; the composite wallboard force transmission steel plates 10 are prefabricated at the upper parts of wallboards in factories respectively, and a surface layer of a welding composite wallboard force transmission steel plate 10 area is reserved with a composite roof lower side one-shaped connecting steel plate 15 and a composite wallboard force transmission steel plate side groove 23 in which a composite roof lower side L-shaped connecting steel plate 16 can be embedded.
Composite inner roof leaf 11 and composite outer roof leaf 12: is a concrete sheet formed by casting C30-C40 fine stone concrete. The inner leaf concrete sheet and the outer leaf concrete sheet are connected and sealed at the end parts of the cornices so as to improve the durability of the inner heat insulation board. The composite roof inner leaf concrete slab is broken at the connection position of the composite wall plate and the wall plate concrete, and the broken position is filled with the heat insulation plate so as to block a cold bridge at the connection position of the roof and the wall plate.
Composite roof rebar grid 13: the single-row reinforcing mesh is formed by binding or welding horizontally-distributed reinforcing bars and vertically-distributed reinforcing bars;
composite roof force-transmitting steel plate 14: is a strip steel plate welded on a steel bar net at the joint position of the inner and outer leaf concrete plates at the outer edge of the composite roof, and a first connecting steel plate 15 at the lower side of the composite roof and a first connecting steel plate 17 at the upper side of the composite roof are welded on the strip steel plate.
A composite roof lower side one-shaped connecting steel plate 15 and a composite roof upper side one-shaped connecting steel plate 17: is a one-shaped connecting steel plate welded on the composite roof force transmission steel plate 14, the one-shaped connecting steel plate is welded with the composite roof force transmission steel plate 14, and self-tapping screw holes are formed at the connecting positions of the one-shaped connecting steel plate, the composite wallboard force transmission steel plate 10 and the composite parapet force transmission steel plate 22. The composite roof lower side one-shaped connecting steel plate 15 and the composite roof upper side one-shaped connecting steel plate 17 are respectively embedded into a composite wallboard force transmission steel plate side groove 23 and a composite parapet force transmission steel plate side groove 24 and are connected by self-tapping nails 28; the thickness is not less than 3mm; the one-shaped connecting steel plate 15 at the lower side of the composite roof and the one-shaped connecting steel plate 17 at the upper side of the composite roof are provided with self-tapping screw holes, and 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 the extrusion force, and meanwhile, the biting force of the steel plates and the self-tapping screw can be enhanced.
The composite roof lower side L-shaped connecting steel plate 16 and the composite roof upper side L-shaped connecting steel plate 18: the composite roof steel bar net is an L-shaped connecting steel plate which is welded on the composite roof steel bar net 13 and is used as a force transmission steel plate and a connecting steel plate, self-tapping screw holes are formed at the connecting positions of the L-shaped connecting steel plate, the composite wallboard force transmission steel plate 10 and the composite parapet wall force transmission steel plate 22, one limb of the L-shaped connecting steel plate is welded on the composite roof steel bar net 13, the L-shaped connecting steel plate is embedded in a composite roof concrete sheet after concrete is poured, and the other limb extends out of the inner leaf plate. The L-shaped connecting steel plate 16 at the lower side of the composite roof and the L-shaped connecting steel plate 18 at the upper side of the composite roof are respectively embedded into the side grooves 23 and 24 of the force transmission steel plate of the composite wallboard and are connected by self-tapping nails 28; the thickness is not less than 3mm; 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 the extrusion force, and meanwhile, the biting force of the steel plates and the self-tapping screw can be enhanced.
Composite parapet outer leaf concrete slab 19 and composite parapet inner leaf concrete slab 20: is a concrete sheet formed by casting C30-C40 fine stone concrete.
Composite parapet reinforcing mesh 21: the single-row reinforcing mesh is a composite parapet inner and outer leaf concrete slab and is formed by binding or welding horizontally-distributed reinforcing bars and vertically-distributed reinforcing bars.
Composite parapet force transmission steel plate 22: is a strip steel plate welded on the composite parapet reinforcing mesh 21 and with the thickness not smaller than 3mm, and is connected with a connecting steel plate 17 at the upper side of the composite roof and an L-shaped connecting steel plate 18 at the upper side of the composite roof by self-tapping screws.
Composite wallboard force transmission steel plate side groove 23: after the composite roof lower side one-shaped connecting steel plate 15 and the composite roof lower side L-shaped connecting steel plate 16 are embedded into the inside and connected by self-tapping screws, high-performance mortar with the strength grade not lower than M15 is adopted for trowelling.
Composite parapet force transmission steel plate side groove 24: the high-performance mortar with the strength grade not lower than M15 is adopted for trowelling after the inner part is embedded with the first connecting steel plate 17 at the upper side of the composite roof and the L-shaped connecting steel plate 18 at the upper side of the composite roof and connected by self-tapping screws.
Composite wallboard mortar cushion 25: the high-performance mortar cushion layer with the thickness of not less than 10mm is arranged between the inner leaf plate of the composite roof 2 and the composite wall plate 1, and the mortar cushion layer is of a continuous force transmission structure between the composite wall plate and the composite roof, so that the shock resistance, the waterproof performance and the heat insulation performance of an assembly joint of the composite wall plate and the composite roof are improved.
Filling the foam tape 26: the heat insulation material is a connecting material of the composite wallboard and the composite roof heat insulation board, has the thickness of not less than 10mm, can effectively improve the heat insulation performance of the joint of the composite wallboard and the composite roof, avoids cold bridge, and is suitable for building houses with ultra-low energy consumption.
Parapet mortar cushion layer 27: the high-performance mortar cushion layer with the thickness of not less than 10mm is arranged between the outer blade plate of the composite roof 2 and the composite parapet wall 3, and the mortar cushion layer is of a continuous force transmission structure between the composite wall plate and the composite parapet wall, so that the shock resistance, the waterproof performance and the heat insulation performance of the assembly joint of the composite wall plate and the composite parapet wall are improved.
Self-tapping screw 28: 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 29: is a wood block which is adhered to the back of the upper composite wallboard force transmission steel plate 10 and the composite parapet force transmission steel plate 22 by using a bonding agent such as glass cement and the like, and has the main function of facilitating the self-tapping screw to drill into the force transmission steel plate.
Insulation board 30: 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 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.
Waterproof layer 31: the waterproof structure of the composite roof 2 and the composite parapet 3 can adopt asphalt or synthetic polymer waterproof coiled materials.
The whole construction method comprises the following steps: firstly, according to the architectural design and structural arrangement, the arrangement positions and the specific sizes of the assembled sandwich heat-insulating concrete composite wallboard, the composite roof and the composite parapet wall are determined. And designing the section thickness and reinforcement of the wall body, the roof and the parapet according to the load value, carrying out stress checking calculation on the wall body according to the section size and the material strength of the designed wall body, and designing a composite wallboard, a composite parapet and composite roof self-tapping screw block connection structure and a mortar cushion layer structure after the wall body and the roof are designed. Drawing detailed structural construction drawings according to the design schemes of the composite wallboard, the composite parapet, the composite roof and the assembly connection nodes thereof, and carrying out manufacturing, transportation and on-site assembly construction of the prefabricated composite wallboard, the composite parapet and the roof.
The construction process of the assembled composite wallboard and the self-tapping screw block connection structure of the non-overhanging composite roof is as follows: 1) Preparing a composite wallboard with a force transmission steel plate in a factory; preparing a composite roof with a one-shaped connecting steel plate and an L-shaped connecting steel plate; preparing a composite parapet wall with a force transmission steel plate; 2) Installing a composite wallboard, smearing high-performance mortar on inner and outer leaf concrete plates at the top end of the composite wallboard, installing a composite floor, embedding an L-shaped connecting steel plate and a one-shaped connecting steel plate at the lower side of an inner leaf plate of the composite floor concrete into a side groove of a force transmission steel plate of the composite wallboard, enabling the L-shaped connecting steel plate with self-tapping screw holes to be clung to the force transmission steel of the composite wallboard, and bonding mortar cushion layers on inner and outer leaf plates of the composite wallboard with inner leaf plates of the composite roof; 3) The self-tapping screw is adopted to freely pass through the L-shaped connecting steel plate and the one-shaped connecting steel plate of the composite roof which are used as the force transmission steel plate and the connecting steel plate, and the self-tapping connecting composite wall force transmission steel plate; 4) Paving high-performance mortar on the outer blade plate of the composite roof, installing a composite parapet, embedding an L-shaped connecting steel plate and a one-shaped connecting steel plate on the upper side of the outer blade plate of the composite floor into a groove on the side surface of the force transmission steel plate of the composite parapet, and enabling the L-shaped connecting steel plate with self-tapping screw holes to be clung to the force transmission steel of the composite wall plate, wherein mortar cushion layers on the inner blade plate and the outer blade plate of the composite parapet are adhered to the inner blade plate of the composite roof; 5) The self-tapping screw is adopted to freely pass through the L-shaped connecting steel plate and the one-shaped connecting steel plate of the composite roof which are used as the force transmission steel plate and the connecting steel plate, and the self-tapping screw is used for connecting the force transmission steel plate of the composite parapet wall; 6) Trowelling grooves on the side surfaces of the force transmission steel plates of the composite wall boards by adopting high-performance mortar and grooves on the side surfaces of the force transmission steel plates of the composite parapet walls; 7) Filling foaming glue between the polyphenyl thermal insulation boards of the joints of the composite wallboard and the composite roof;
8) And painting the outer wall, the roof, the parapet wall and the splicing seams by adopting the outer wall painting paint, and painting the inner wall and the assembly seams by adopting the inner wall decoration 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 (8)
1. The self-tapping screw block connection structure for the assembled composite wallboard and the cantilever-free composite roof is characterized by comprising a composite wallboard (1), a composite roof (2) and a composite parapet (3), wherein the composite roof (2) is connected to the top of the composite wallboard (1), and the composite parapet (3) is connected to the upper surface of the composite roof (2);
the composite wallboard (1) comprises a composite wallboard outer leaf concrete plate (4), a composite wallboard inner leaf concrete plate (5) and a heat-insulating plate (30), wherein concrete is poured into a composite wallboard reinforcing mesh (6) to form the composite wallboard outer leaf concrete plate (4) and the composite wallboard inner leaf concrete plate (5), and the heat-insulating plate (30) is arranged between the composite wallboard outer leaf concrete plate (4) and the composite wallboard inner leaf concrete plate (5) and is connected with the composite wallboard outer leaf concrete plate (4) and the composite wallboard inner leaf concrete plate (5) through tie bars (7); a plurality of composite wallboard force transmission steel plates (10) are welded on the composite wallboard reinforcing steel mesh (6), the composite wallboard force transmission steel plates (10) are symmetrically arranged on two sides of the composite wallboard reinforcing steel mesh (6), and the composite wallboard force transmission steel plates (10) are also welded and connected with a force transmission steel plate connecting steel bar (8) and an elbow reinforcing steel bar (9); the lateral grooves (23) of the composite wallboard force transmission steel plate are formed in the outer side of the composite wallboard force transmission steel plate (10);
the composite roof (2) comprises a composite roof inner blade plate (11) and a composite roof outer blade plate (12), wherein an insulation plate (30) is arranged between the composite roof inner blade plate (11) and the composite roof outer blade plate (12), the composite roof inner blade plate (11) and the composite roof outer blade plate (12) are formed by casting concrete through a composite roof reinforcing steel bar net (13), and the composite roof inner blade plate (11), the composite roof outer blade plate (12) and the insulation plate (30) are connected together through composite roof tie bars; welding a plurality of composite roof upper side L-shaped connecting steel plates (18) and a plurality of composite roof lower side L-shaped connecting steel plates (16) on the composite roof reinforcing steel mesh (13), wherein the composite roof upper side L-shaped connecting steel plates (18) are arranged at the top of the composite roof (2), the composite roof lower side L-shaped connecting steel plates (16) are arranged at the bottom of the composite roof (2), and one limb of the composite roof lower side L-shaped connecting steel plates (16) is embedded into the composite wallboard force transmission steel plate side grooves (23) and connected with the composite wallboard force transmission steel plates (10) through self-tapping nails (28); a composite roof force transmission steel plate (14) is welded and connected at the joint of the inner leaf concrete plate and the outer leaf concrete plate on the outer side vertical end surface of the composite roof reinforcing steel net (13), the lower part of a composite roof upper side one-shaped connecting steel plate (17) and the upper part of a composite roof lower side one-shaped connecting steel plate (15) are welded and connected on the outer side of the composite roof force transmission steel plate (14), and the lower part of the composite roof lower side one-shaped connecting steel plate (15) is embedded into a composite wallboard force transmission steel plate side groove (23) and is connected with the composite wallboard force transmission steel plate (10) through a self-tapping screw (28);
the composite parapet (3) comprises a composite parapet outer leaf concrete plate (19), a composite parapet inner leaf concrete plate (20) and a heat insulation plate (30), wherein the composite parapet outer leaf concrete plate (19) and the composite parapet inner leaf concrete plate (20) are formed by pouring concrete of a composite parapet reinforcing steel mesh (21), the heat insulation plate (30) is arranged between the composite parapet outer leaf concrete plate (19) and the composite parapet inner leaf concrete plate (20), and the composite parapet outer leaf concrete plate (19), the composite parapet inner leaf concrete plate (20) and the heat insulation plate are connected through tie bars; a plurality of composite parapet force transmission steel plates (22) are welded and connected to two sides of the composite parapet reinforcing mesh (21) respectively, a composite parapet force transmission steel plate side groove (24) is formed in the outer side of the composite parapet force transmission steel plate (22), the upper part of a first connecting steel plate (17) on the upper side of the composite house cover is embedded into the composite parapet force transmission steel plate side groove (24) and is connected with the composite parapet force transmission steel plate (22) through self-tapping nails, and one limb of an L-shaped connecting steel plate (18) on the upper side of the composite house cover is embedded into the composite parapet force transmission steel plate side groove (24) and is connected with the composite parapet force transmission steel plate (22) through self-tapping nails;
the force transmission steel plate connecting steel bars (8) are horizontally distributed steel bars of an inner and outer leaf concrete thin plate steel bar net of the composite wallboard, the composite roof and the composite parapet;
the two ends of the elbow reinforcing steel bar (9) are provided with elbows, and the elbow reinforcing steel bar (9) is welded and connected to the welding connection sides of the force transmission steel plate (14) of the composite roof, the L-shaped connecting steel plate (16) of the lower side of the composite roof, the L-shaped connecting steel plate (18) of the upper side of the composite roof, the force transmission steel plate (22) of the composite parapet wall and the force transmission steel plate connecting steel bar (8).
2. The assembled composite wallboard and non-overhanging composite roof tapping screw block connection structure according to claim 1, wherein the inner composite roof blade (11) and the outer composite roof blade (12) are connected in a sealed manner at the cornice end, the inner composite roof blade (11) is disconnected at the connection position with the composite wallboard (1), and the thermal insulation board (30) is filled at the disconnection position.
3. The assembly type composite wallboard and non-overhanging composite roof tapping screw block connection structure according to claim 1, wherein one limb of the lower side L-shaped connection steel plate (16) of the composite roof and one limb of the upper side L-shaped connection steel plate (18) of the composite roof are welded on the composite roof reinforcing steel mesh (13), the composite roof is embedded in a composite roof concrete sheet after concrete is poured, and the other limb extends out of the inner leaf plate and the outer leaf plate.
4. The assembled composite wallboard and non-overhanging composite roof self-tapping screw block connection structure according to claim 1, wherein a composite wallboard mortar cushion layer (25) with the thickness of not less than 10mm is paved between the inner blade plate of the composite roof (2) and the composite wallboard (1).
5. The assembled composite wallboard and non-overhanging composite roof self-tapping screw block connection structure according to claim 1, characterized in that a foam glue filling strip (26) is arranged between the insulation board of the composite roof (2) and the insulation board of the composite wallboard (1).
6. The block connection structure of the assembled composite wallboard and the cantilever-free composite roof self-tapping screw according to claim 1, wherein a parapet mortar cushion layer (27) is paved between the outer blade plate of the composite roof (2) and the composite parapet (3).
7. The block connection structure of the assembled composite wallboard and the cantilever-free composite roof self-tapping screw according to claim 1, wherein wood blocks (29) are adhered to the inner side surfaces of the composite wallboard force transmission steel plate (10) and the composite parapet force transmission steel plate (22).
8. A method for realizing the block connection structure of the assembled composite wallboard and the cantilever-free composite roof self-tapping screw according to claim 1, which is characterized by comprising the following steps:
the first step: preparing a composite wallboard with a force transmission steel plate in a factory; preparing a composite roof with a one-shaped connecting steel plate and an L-shaped connecting steel plate; preparing a composite parapet wall with a force transmission steel plate;
and a second step of: installing a composite wallboard, smearing high-performance mortar on inner and outer leaf concrete plates at the top end of the composite wallboard, installing a composite floor, embedding an L-shaped connecting steel plate and a one-shaped connecting steel plate at the lower side of an inner leaf plate of the composite floor concrete into a side groove of a force transmission steel plate of the composite wallboard, enabling the L-shaped connecting steel plate with self-tapping screw holes to be clung to the force transmission steel of the composite wallboard, and bonding mortar cushion layers on inner and outer leaf plates of the composite wallboard with inner leaf plates of the composite roof;
and a third step of: the self-tapping screw is adopted to freely pass through the L-shaped connecting steel plate and the one-shaped connecting steel plate of the composite roof which are used as the force transmission steel plate and the connecting steel plate, and the self-tapping connecting composite wall force transmission steel plate;
fourth step: paving high-performance mortar on the outer blade plate of the composite roof, installing a composite parapet, embedding an L-shaped connecting steel plate and a one-shaped connecting steel plate on the upper side of the outer blade plate of the composite floor into a groove on the side surface of the force transmission steel plate of the composite parapet, and enabling the L-shaped connecting steel plate with self-tapping screw holes to be clung to the force transmission steel of the composite wall plate, wherein mortar cushion layers on the inner blade plate and the outer blade plate of the composite parapet are adhered to the inner blade plate of the composite roof;
fifth step: the self-tapping screw is adopted to freely pass through the L-shaped connecting steel plate and the one-shaped connecting steel plate of the composite roof which are used as the force transmission steel plate and the connecting steel plate, and the self-tapping screw is used for connecting the force transmission steel plate of the composite parapet wall;
sixth step: trowelling grooves on the side surfaces of the force transmission steel plates of the composite wall boards by adopting high-performance mortar and grooves on the side surfaces of the force transmission steel plates of the composite parapet walls;
seventh step: filling foaming glue between the polyphenyl thermal insulation boards of the joints of the composite wallboard and the composite roof;
eighth step: and painting the outer wall, the roof, the parapet wall and the splicing seams by adopting the outer wall painting paint, and painting the inner wall and the assembly seams by adopting the inner wall decoration paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210273896.5A CN114753694B (en) | 2022-03-19 | 2022-03-19 | Method for connecting assembled composite wallboard and cantilever-free composite roof self-tapping screw assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210273896.5A CN114753694B (en) | 2022-03-19 | 2022-03-19 | Method for connecting assembled composite wallboard and cantilever-free composite roof self-tapping screw assembly |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759994A (en) * | 2017-02-20 | 2017-05-31 | 浙江大学建筑设计研究院有限公司 | A kind of warming plate with arrangement of reinforcement and its thermal insulation structure construction method in exterior wall concrete section position |
| CN214994873U (en) * | 2021-02-07 | 2021-12-03 | 上海紫宝建设工程有限公司 | Double-sided superimposed sandwich heat-insulation parapet |
| CN218438553U (en) * | 2022-03-19 | 2023-02-03 | 北京工业大学 | Assembly type composite wallboard and exterior cantilever-free composite roof self-tapping nail cluster connecting structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106759994A (en) * | 2017-02-20 | 2017-05-31 | 浙江大学建筑设计研究院有限公司 | A kind of warming plate with arrangement of reinforcement and its thermal insulation structure construction method in exterior wall concrete section position |
| CN214994873U (en) * | 2021-02-07 | 2021-12-03 | 上海紫宝建设工程有限公司 | Double-sided superimposed sandwich heat-insulation parapet |
| CN218438553U (en) * | 2022-03-19 | 2023-02-03 | 北京工业大学 | Assembly type composite wallboard and exterior cantilever-free composite roof self-tapping nail cluster connecting structure |
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