CN218117399U - Assembly type L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster connecting structure - Google Patents
Assembly type L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster connecting structure Download PDFInfo
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- CN218117399U CN218117399U CN202220603130.4U CN202220603130U CN218117399U CN 218117399 U CN218117399 U CN 218117399U CN 202220603130 U CN202220603130 U CN 202220603130U CN 218117399 U CN218117399 U CN 218117399U
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Abstract
The utility model discloses an assembled L shape composite wall panel leads to long power steel sheet self-tapping nail glomeration joint construction that passes for multi-storey building bears the assembly of the less L shape upper and lower composite wall panel of seismic action. The through-length force transmission steel plate self-tapping screw assembly block is an inner and outer leaf concrete thin plate with a through-length force transmission steel plate, and is a steel-concrete combined plate block with built-in steel structure, wherein the steel-concrete combined plate block is formed by connecting a self-tapping screw and a linear and L-shaped connecting steel plate with an upper through-length force transmission steel plate and a lower through-length force transmission steel plate and has the thickness of a plate section outline concrete thin plate; the through-length force transmission steel plate self-tapping screw cluster connecting structure is composed of a self-tapping screw cluster and a force transmission steel plate section without the self-tapping screw cluster; the self-tapping screw block resists earthquake bidirectional shearing force, bending moment and torque and can transmit vertical load; the butt joint steel plate section mainly transfers vertical load; the L-shaped constructional columns are concrete hidden columns positioned at the inner corners of the wall boards. The utility model discloses have upper and lower L shape composite wall panel assembly construction piece, connection performance, durability, thermal technology performance are good and do not have the showing technical advantage of wet operation.
Description
Technical Field
The utility model relates to an assembled L shape composite wall panel leads to long biography power steel sheet self-tapping nail glomeration joint construction belongs to assembled concrete construction engineering technical field.
Background
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 villages and small towns is quite deficient at present.
The bottleneck problem of the prior art: (1) The L-shaped wall body of the assembly type composite wall structure at the corner of a building is complex to assemble, corner structural columns are required to be arranged under the action of bending, shearing and twisting of the L-shaped wall body at the corner, and the technical problem caused by the requirement of the geometric shape and stress of the L-shaped composite wall panel cannot be solved by the one-piece composite wall body assembling method. (2) The traditional shear wall reinforcement structure has large distribution space and large diameter of reinforcing steel bars, and if a 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, so that 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; (3) The traditional technology of sleeve connecting steel bars of the shear wall is not suitable for assembling the single-row reinforcing mesh concrete thin plate sandwich polystyrene board wallboard with the inner and outer blades, and the thickness of the thin wallboard with the inner and outer blades is only 40-60 mm; (4) The traditional technology for connecting the shear wall steel plates by bolts is not suitable for assembling the inner leaf and outer leaf single-row reinforced mesh concrete thin plate sandwich polystyrene board wall boards, because the polystyrene board is clamped between the inner leaf wall board and the outer leaf wall board 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 and outer leaf concrete thin wall boards are difficult to assemble respectively by adopting the traditional technology for connecting the steel plates by bolts; (5) 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 leaf single-row reinforcing mesh concrete thin plate sandwich polystyrene board wallboard belongs to the assembly of reinforced concrete wallboard, and simultaneously requires friction force and snap-in force, and it is obvious that the existing technology of directly connecting light steel keels by self-tapping screws is difficult to meet the assembly of the inner and outer leaf concrete thin wallboard of the composite wallboard and the force transmission requirement thereof.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a steel sheet self-tapping nail collectingpiece joint construction is passed to assembled L shape composite wall panel logical length is provided, by a shape self-tapping nail collectingpiece, L shape self-tapping nail collectingpiece, the combination of L shape concrete hidden pillar forms, has the effect of resisting earthquake moment of flexure, shear force, moment of torsion.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a through-length force transmission steel plate self-tapping nail cluster connecting structure for an assembled L-shaped composite wallboard comprises an L-shaped upper composite wallboard, an L-shaped lower composite wallboard, an internally-concealed steel structure of a straight self-tapping nail cluster concrete thin wallboard and an internally-concealed steel structure of an L-shaped self-tapping nail cluster concrete thin wallboard;
the L-shaped upper composite wallboard and the L-shaped lower composite wallboard are respectively provided with an inner leaf plate steel bar net and an outer leaf plate steel bar net, the inner leaf plate steel bar net, the outer leaf plate steel bar net and the heat insulation plate are connected through tie bars, and the inner leaf plate steel bar net and the outer leaf plate steel bar net are poured to form an inner leaf concrete plate and an outer leaf concrete plate;
the built-in steel structures of the linear self-tapping nail block concrete thin wall plate are arranged at the end parts of two wall limbs of the L-shaped composite wall plate, in the midspan and close to the L-shaped hidden column; the built-in steel structure of the linear self-tapping screw block-collecting concrete thin wallboard comprises an upper L-shaped through-length force transmission steel plate and a lower L-shaped through-length force transmission steel plate, wherein the upper L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate are welded with the inner leaf reinforcing mesh and outer leaf reinforcing mesh vertical distribution reinforcing steel bars of the composite wallboard and are welded with the steel plate connecting reinforcing steel bars, so that a wood block of the linear self-tapping screw penetrating through the through-length force transmission steel plates is conveniently bonded with the upper L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate through glass cement or structural cement; the upper L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate are connected together through a straight connecting steel plate by a self-tapping screw;
the built-in steel structure of the L-shaped self-tapping nail block concrete thin wallboard is arranged at the corner of the composite wallboard; the built-in steel structure of the L-shaped self-tapping screw block concrete thin wall plate comprises an upper L-shaped through-length force transmission steel plate and a lower L-shaped through-length force transmission steel plate, wherein the upper L-shaped through-length force transmission steel plate is welded with the lower L-shaped through-length force transmission steel plate and a reinforcing mesh at the corner of a reinforcing mesh of an outer leaf of the wall plate, and the L-shaped through-length force transmission steel plate is welded with a steel plate connecting reinforcing bar, so that a self-tapping screw can penetrate through a wood block of the L-shaped force transmission steel plate to be bonded with the upper force transmission L-shaped steel plate and the lower force transmission L-shaped steel plate through glass cement or structural cement; the L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate are connected together through an L-shaped connecting steel plate by a self-tapping screw;
preferably, the L-shaped embedded column is made by placing factory-prefabricated L-shaped reinforcement cages at the corners of the L-shaped composite wall panels in situ and casting fine aggregate concrete, and the L-shaped embedded column is flush with and connected with the surfaces of the inner leaf concrete plates of the composite wall panels into a whole.
Preferably, the outer leaf concrete plate and the inner leaf concrete plate are cast by fine stone concrete with the diameter of 5 mm-10 mm of coarse aggregate, and the concrete strength grade is C30-C40.
Preferably, the heat insulation board is made of a polystyrene extruded sheet or a polystyrene foam plastic sheet or a phenolic foam composite board, dovetail grooves are formed in the surface of the heat insulation board, and the inner blade concrete and the outer blade concrete are meshed with the heat insulation board through the dovetail grooves.
Preferably, the inner leaf plate reinforcing mesh and the outer leaf plate reinforcing mesh are L-shaped distributed reinforcing steel bars of the assembled wallboard, and the inner leaf plate reinforcing mesh and the outer leaf plate reinforcing mesh are both made of horizontally distributed reinforcing steel bars and vertically distributed reinforcing steel bars through binding or welding connection.
Preferably, the single side of the tie bar is provided with a 135-degree hook, one side of the tie bar with the oblique hook is tied and bound or welded with the horizontal and longitudinal bar joints of the inner leaf bar mesh, and the other side of the tie bar penetrates through the heat insulation board and is welded with the outer leaf bar mesh joints.
Preferably, go up L shape full length pass power steel sheet L shape full length passes power steel sheet down and is equal limb L shape steel part, and two limbs length is isometric with L shape composite wall, go up L shape full length pass power steel sheet bottom and inside and outside leaf reinforcing bar net welded connection at the assembled wall body, and with steel sheet connecting reinforcement welding, the wall body top L shape full length passes power steel sheet and inside and outside leaf reinforcing bar net welding down to with steel sheet connecting reinforcement welding.
Preferably, the steel plate connecting steel bars are horizontally distributed steel bars at the top end and the bottom end of the reinforcing mesh of the inner leaf and the outer leaf of the wallboard.
Preferably, the lower part of the straight connecting steel plate is connected with the L-shaped through-length force transmission steel plate of the outer leaf of the lower composite wall through a self-tapping screw after being lapped.
The utility model provides a prefabricated L shape composite wall panel leads to long power steel sheet self-tapping nail glomeration joint construction's of biography construction method, includes the following steps:
the first step is as follows: prefabricating an L-shaped upper concrete sheet sandwich polystyrene wallboard and an L-shaped lower concrete sheet sandwich polystyrene wallboard, wherein the L-shaped upper concrete sheet sandwich polystyrene wallboard is provided with an upper L-shaped through long force transmission steel piece and a lower L-shaped through long force transmission steel piece;
the second step is that: coating glass cement on the contact surfaces of the inner leaf concrete plates and the outer leaf concrete plates of the L-shaped upper composite wallboard and the L-shaped lower composite wallboard during assembly, and then placing the upper composite wallboard on the lower composite wallboard;
the third step: respectively embedding the I-shaped connecting steel plate and the L-shaped connecting plate into corresponding grooves, and adopting self-tapping screws to freely penetrate through preformed holes of the connecting steel plates to be in self-tapping connection with force transmission steel plates on the inner leaf concrete sheet and the outer leaf concrete sheet of the composite wallboard;
the fourth step: leveling the groove of the connecting steel plate by using high-performance mortar;
the fifth step: placing the L-shaped embedded column reinforcement cage into the reserved L-shaped embedded column position of the composite wall, pouring fine aggregate concrete and maintaining;
and a sixth step: painting waterproof paint.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: (1) The self-tapping nail cluster structure of the L-shaped composite wallboard solves the problems of complex assembly structure of the L-shaped double-limb wallboard at the corner of the composite wallboard and poor shearing resistance and torsion resistance of the corner of the composite shear wall structure; (3) The upper and lower L-shaped through-length force transmission steel plate self-tapping nail cluster connection technology solves the problem that the traditional shear wall connection technology is not suitable for the integrated connection of thin and dense steel meshes of an inner and outer leaf concrete thin wallboard of an L-shaped composite wallboard; (4) The upper L-shaped through-length force transmission steel plate self-tapping nail cluster block structure and the lower L-shaped through-length force transmission steel plate self-tapping nail cluster block structure solve the problem that the interface of a concrete thin plate and a sandwich polystyrene board is a connection construction blind area when the traditional steel plate is connected with the concrete thin wall board through bolts; (5) The defect of heat bridge problem of the composite wallboard due to through connection of steel plate screws is overcome, and the composite wallboard is suitable for the requirement of ultra-low energy consumption on the thermal performance of a house; (6) After the L-shaped through-length force transmission steel plate at the assembly position of the composite wallboard is combined with the inner leaf concrete thin plate and the outer leaf concrete thin plate, the through length of the assembly position has the advantage of strong compression capability of the composite wallboard, and a plurality of steel-concrete combined connecting nodes formed after the connecting steel plate is connected with a plurality of connecting sections of the upper L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate have the advantages of convenience in connection and strong compression and shearing capabilities; (5) The self-tapping nail blocks resist horizontal earthquake shearing force through the friction force between the connecting steel plate and the force transmission steel plate section and the meshing force between the steel plate and the self-tapping nails, and can also transmit vertical gravity; the butt joint steel plate sections (except the self-tapping screw block collecting section) mainly transmit vertical gravity and also can play a certain role in resisting horizontal earthquake shear force through friction force; (6) The upper L-shaped composite wallboard and the lower L-shaped composite wallboard are all connected in a dry mode, wet operation is avoided, zero emission of construction waste is achieved, and the assembling construction speed is remarkably improved.
Drawings
FIG. 1 is a schematic view of the overall structure;
FIG. 2 is a schematic view of an assembled L-shaped composite wall construction;
FIG. 3 is a schematic view of assembled L-shaped composite wall rebar and steel members;
FIG. 4 is a schematic view of a wall panel connection node configuration;
FIG. 5 is a schematic view of an L-shaped stud connection configuration;
FIG. 6 is a schematic view of an L-shaped self-tapping nail and a steel structure; the (a) is an outer schematic view, and the (b) is an inner schematic view.
FIG. 7 is a schematic view of a steel structure with a self-tapping nail and a steel block; (a) is an outside schematic view, and (b) is an inside schematic view.
FIG. 8 is a diagram of a wall body mid-span straight self-tapping nail cluster node formation process;
FIG. 9 is a diagram of a process for forming L-shaped self-tapping nail cluster node at a corner of a wall;
in the figure: 1. an L-shaped upper composite wallboard; 2. an L-shaped lower composite wallboard; 3. an outer leaf concrete slab; 4. an inner leaf concrete slab; 5. a heat-insulating board; 6. an inner leaf plate reinforcement mesh; 7. an outer leaf plate steel bar mesh; 8. tying the reinforcing steel bars; 9. An upper L-shaped through-length force transmission steel plate; 10. a lower L-shaped through-length force transmission steel plate; 11. wood blocks; 12. connecting steel bars with steel plates; 13. a first connecting steel plate; 14. an L-shaped connecting steel plate; 15. self-tapping screw; 16. a groove; 17. an L-shaped hidden column reinforcement cage; 18. an L-shaped hidden column; 19. an L-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
As shown in fig. 1-9, the assembled L-shaped composite wall panel through-length force-transmission steel plate self-tapping screw cluster block connection structure is a spatial stress connection area formed by combining a linear self-tapping screw cluster block, an L-shaped self-tapping screw cluster block and an L-shaped concrete embedded column, and has the functions of resisting earthquake bending moment, shearing force and torque.
A self-tapping screw block is a concrete thin wallboard block which is formed by connecting self-tapping screw groups and built-in steel structure connecting steel plate profile concrete sheets connected by a shape connecting steel plate section, and is thick, is a steel-concrete combined block, and is formed by connecting the end parts and the middle parts of inner and outer leaf single-row steel mesh concrete sheets of two wall limbs of an upper L-shaped composite wallboard and a lower L-shaped composite wallboard and arranging the inner leaf single-row steel mesh concrete sheets of a corner part at the position close to an L-shaped hidden column. Forming a self-tapping nail cluster: the middle reinforcing meshes of the upper wallboard and the lower wallboard are welded with an upper L-shaped through-length force transmission steel plate and a lower L-shaped through-length force transmission steel plate, a linear connecting steel plate section with a self-tapping screw penetrating hole is manufactured, a plurality of self-tapping screws penetrate through the linear connecting steel plate section and then are connected with the upper L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate in a self-tapping mode, the part, recessed into the wallboard, of the linear connecting steel plate section is leveled by adopting mortar, and a concrete thin wallboard area block with hidden steel structure and with the thickness of a profile concrete thin plate in the linear connecting steel plate area is called a linear self-tapping screw assembly block.
The L-shaped self-tapping screw assembly is a concrete thin wallboard block which is formed by connecting self-tapping screw groups and L-shaped connecting steel plates thereof and has the thickness of an L-shaped connecting steel plate outline concrete thin plate with built-in steel structure, and is an L-shaped steel-concrete combined block at the corner where two wall limb outer leaves of an upper L-shaped composite wallboard and an outer leaf single-row reinforcing mesh concrete thin plate of a lower L-shaped composite wallboard meet. Forming an L-shaped self-tapping nail cluster: welding upper and lower L-shaped through-length force transmission steel plates through outer leaf reinforcing meshes at corners of the upper and lower composite wallboards, manufacturing an L-shaped connecting steel plate with a self-tapping screw through hole, enabling a self-tapping screw to freely penetrate through the L-shaped connecting steel plate and then self-tapping to connect the upper and lower L-shaped through-length force transmission steel plates, troweling the L-shaped grooves of the L-shaped connecting steel plates recessed into the wallboards by mortar, and enabling L-shaped concrete thin wallboard blocks with the thickness of the outline concrete thin plates in the L-shaped connecting steel plate area to be called L-shaped self-tapping screw blocks.
The L-shaped hidden column is a reinforced concrete constructional column formed by placing an L-shaped reinforcement cage prefabricated in a factory at the corner of the L-shaped composite wallboard and casting fine aggregate concrete in situ; the L-shaped constructional columns are flush with the surface of the inner leaf concrete plate of the composite wallboard and connected into a body with cooperative stress, and the integrity of the corner wall body of the assembled composite wallboard structure is effectively improved.
The combined connection structure is a steel-concrete combined joint connection structure formed by the end parts of two wall limbs of the L-shaped composite wallboard, the middle part and the inner leaf concrete thin plate close to the L-shaped hidden column and the L-shaped self-tapping screw blocks at the corner parts, and a structural combination for cooperatively resisting earthquake bidirectional shearing force, torque and bending moment with the L-shaped hidden column connection structure.
Two limb tip of L shape composite wall panel, stride in and be close to the built-in steel structure of each shape self-tapping nail agglomeration concrete thin wall panel of L shape hidden column position: the upper L-shaped through-length force transmission steel plate 9 and the lower L-shaped through-length force transmission steel plate 10 are welded with the steel bars vertically distributed on the inner leaf steel bar net and the outer leaf steel bar net of the composite wallboard and are welded with the steel plate connecting steel bars 12, so that the self-tapping screw can penetrate through the wood block 11 of the L-shaped through-length force transmission steel plate and can be bonded with the upper L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate through glass cement or structural cement. The upper L-shaped through length force transmission steel plate 9 and the lower L-shaped through length force transmission steel plate 10 are connected through a one-shaped connecting steel plate 13 by a self-tapping screw 15 to form the built-in steel structure of the one-shaped self-tapping screw block concrete thin wall plate.
The built-in steel structure of thin wallboard of compound wallboard bight L shape self-tapping nail glomeration concrete: the upper L-shaped through-length force transmission steel plate 9 and the lower L-shaped through-length force transmission steel plate 10 are welded with a reinforcing mesh at the corner of the outer leaf reinforcing mesh of the wallboard, the L-shaped through-length steel plate is welded with the steel plate connecting steel bar 12, and the self-tapping screw can penetrate through the wood block 11 of the L-shaped force transmission steel plate and can be bonded with the upper force transmission L-shaped steel plate and the lower force transmission L-shaped steel plate through glass cement or structural cement conveniently. The upper L-shaped through-length force transmission steel plate 9 and the lower L-shaped through-length force transmission steel plate 10 are connected through an L-shaped connecting steel plate 14 by a self-tapping screw 15 to form the built-in steel structure of the L-shaped self-tapping screw block-integrated concrete thin wall plate.
The combination connection of a shape self-tapping nail glomeration, L shape constructional column: the concave wallboard is provided with a linear groove 16 for placing a linear connecting steel plate of the self-tapping nail cluster and an L-shaped groove 19 for placing the L-shaped connecting steel plate, the concave wallboard is leveled by mortar, and the concave wallboard is placed into an L-shaped hidden column steel reinforcement cage to protect a light steel template and pour fine aggregate concrete, so that the full-length force-transferring steel plate self-tapping nail cluster connecting structure of the L-shaped composite wallboard is formed.
Outer leaf concrete plate 3 and inner leaf concrete plate 4: the composite wallboard is an outdoor concrete slab and an indoor concrete slab of a prefabricated L-shaped sandwich insulation concrete composite wallboard. The concrete slab is cast by fine stone concrete with the diameter of 5-10 mm of the filing aggregate, and the strength grade of the concrete is C30-C40. The concrete inner blade plate is connected with the concrete outer blade plate through tie bars 8.
Insulation board 5: polystyrene extruded sheets XPS, polystyrene foam sheets EPS, or phenolic foam composite sheets PUR, etc. may be used. The related performance of the adopted heat insulation board can meet the national standard requirement. The surface of the heat insulation plate 5 is provided with a dovetail groove, and inner and outer blade concrete can be fully meshed with the heat insulation plate through the dovetail groove, so that the shear resistance and the stripping resistance of a connecting interface are enhanced.
Inner blade plate reinforcement mesh 6 and outer blade plate reinforcement mesh 7: the L-shaped distributed reinforcing steel bars of the assembled wallboard are formed by horizontally distributed reinforcing steel bars and vertically distributed reinforcing steel bars, and the reinforcing steel bar mesh can be prepared by binding or welding.
And (3) tying the steel bars 8: it is a drawknot steel bar with a hook bent at 135 degrees on one side. One side of the tie bar 8 with the oblique hook is tied and bound or welded with the horizontal and longitudinal bar joints of the inner leaf bar mesh, and the other side penetrates through the wallboard heat-insulation board 5 and is welded with the outer leaf bar mesh joints.
An upper L-shaped full-length force transmission steel plate 9 and a lower L-shaped full-length force transmission steel plate 10: the double-limb composite wall is an equal-limb L-shaped steel part, the length of each double limb is equal to that of the L-shaped composite wall, the width of each double limb is 40mm, and the thickness of each double limb is not less than 3mm. The upper L-shaped through-length force transmission steel plate 9 is welded with the inner leaf reinforcing mesh and the outer leaf reinforcing mesh at the bottom end of the fabricated wall body and is welded with the steel plate connecting reinforcing bars 12. The lower L-shaped through-length force transmission steel plate 10 at the top of the wall body is welded with the inner leaf reinforcing mesh and the outer leaf reinforcing mesh and is welded with the steel plate connecting reinforcing bars 12 to strengthen the connection capacity of the side nodes of the wall body.
Wood block 11: the wood block is adhered to the back of the upper force transmission steel piece and the back of the lower force transmission steel piece by adhesives such as glass cement and the like, and the main function of the wood block is to facilitate the self-tapping screw to drill into the force transmission steel plate.
Steel plate connecting steel bar 12: the reinforcing steel bars are horizontally distributed at the top end and the bottom end of an inner leaf reinforcing steel bar mesh and an outer leaf reinforcing steel bar mesh of the wallboard, and are welded with an upper L-shaped through-length force transmission steel plate 9 and a lower L-shaped through-length force transmission steel plate 10.
One-shaped connecting steel plate 13:150mm long, 80mm wide, thickness and upper, lower force transmission steel one the same; the upper part of the I-shaped connecting steel plate 13 is connected with a self-tapping nail after being lapped with an upper L-shaped through-length force transmission steel plate 9 of an outer leaf of an upper composite wallboard by 40 mm; the lower part of the one-shaped connecting steel plate 13 is connected with a self-tapping nail after 40mm of the lower L-shaped through-length force transmission steel plate 10 of the lower composite wall outer leaf is lapped. The position that a shape connecting steel plate 13 passed the self-tapping screw needs punch, and after the self-tapping screw drilled into biography power steel sheet, connecting steel plate had the extrusion force with passing the power steel sheet, had the dual power advantage of biography of frictional force and steel sheet and the occlusal force of self-tapping screw between the steel sheet.
L-shaped connecting steel plate 14: adopting equal-limb L-shaped steel plates, wherein the length of each limb is 150mm, the width of each limb is 80mm, and the thickness of each limb is equal to that of a force transmission steel plate; the upper end of the L-shaped connecting steel plate 14 is connected with the self-tapping nail after the L-shaped through-length force transmission steel plate 9 is lapped by 40 mm; the lower part of the L-shaped connecting steel plate 14 is connected with a self-tapping nail after the lower L-shaped through-length force transmission steel plate 10 is lapped for 40 mm. The position that L shape connecting steel plate 14 passed the self-tapping screw needs to punch, and after the self-tapping screw bored into biography power steel sheet, connecting steel plate had the extrusion force with passing the power steel sheet, had the dual power advantage of biography of frictional force between the steel sheet and the bite-force of steel sheet and self-tapping screw.
The self-tapping screw 15: the ST6.3 type hexagonal tail drill self-tapping screw can be selected, the total length of the self-tapping screw is 20mm, the through length of the thread is long, and the distance between the self-tapping screws is generally 25mm-50mm.
High-performance mortar for filling the one-piece groove 16: the high-strength mortar has the strength not lower than M15.
L-shaped hidden column reinforcement cage 17: and the reinforcing steel bars are arranged between the inner leaf concrete plates 4 and the heat insulation plates 5 at the corners of the L-shaped composite wall plates. After the self-tapping nail cluster structure of the upper and lower composite wallboards is constructed on site, the prefabricated L-shaped hidden column reinforcement cage 17 can be placed in the reserved L-shaped hidden column position.
L-shaped hidden post 18: the concrete constructional column is formed by placing a prefabricated reinforcement cage 17 into a reserved L-shaped hidden column 18 and pouring fine stone concrete.
High-performance mortar for filling and leveling the L-shaped groove 19: the high-strength mortar has the strength not lower than M15.
The method of the connecting structure comprises the following steps: (1) Firstly, determining the arrangement of a building structure according to building design and related planning, and determining the arrangement position and the specific size of the assembled heat-preservation sandwich concrete composite shear wallboard. And (4) carrying out stress checking calculation on the wall according to the designed wall section size and the material strength to complete the design of the wall and the connecting nodes. 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 L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster block connection structure is as follows: 1) Prefabricating an L-shaped prefabricated upper concrete thin plate sandwich polystyrene wallboard with an upper L-shaped through long force transmission steel plate and a lower L-shaped through long force transmission steel plate; 2) Coating glass cement on the contact surfaces of the inner leaf concrete plates and the outer leaf concrete plates of the L-shaped upper composite wallboard and the L-shaped lower composite wallboard, and then placing the upper composite wallboard on the lower composite wallboard; 3) Embedding the connecting steel plate into the groove, and adopting a self-tapping screw to freely penetrate through the preformed hole of the connecting steel plate to be in self-tapping connection with the force transmission steel plate on the concrete sheets of the inner leaf and the outer leaf of the composite wallboard; 4) Leveling and maintaining the grooves of the connecting steel plates by using high-performance mortar; 5) Placing the L-shaped embedded column reinforcement cage into the reserved L-shaped embedded column position of the composite wall, pouring fine aggregate concrete and maintaining; 6) And (4) painting the waterproof coating on the wallboard.
Above, only be the embodiment of the preferred 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 included in the protection scope of the present invention.
Claims (8)
1. A through-length force transmission steel plate self-tapping nail cluster connecting structure of an assembled L-shaped composite wallboard is characterized by comprising an L-shaped upper composite wallboard (1), an L-shaped lower composite wallboard (2), an embedded steel structure of a straight self-tapping nail cluster concrete thin wallboard and an embedded steel structure of an L-shaped self-tapping nail cluster concrete thin wallboard;
the L-shaped upper composite wallboard (1) and the L-shaped lower composite wallboard (2) are respectively provided with an inner leaf plate reinforcing mesh (6) and an outer leaf plate reinforcing mesh (7), the inner leaf plate reinforcing mesh (6), the outer leaf plate reinforcing mesh (7) and the heat insulation plate (5) are connected through tie bars (8), and the inner leaf plate reinforcing mesh (6) and the outer leaf plate reinforcing mesh (7) are poured to form an inner leaf concrete plate (4) and an outer leaf concrete plate (3); l-shaped hidden columns are arranged at the corners of the composite wallboard;
the built-in steel structures of the linear self-tapping nail block concrete thin wall plate are arranged at the end parts of two wall limbs of the L-shaped composite wall plate, in the midspan and close to the L-shaped hidden column; the built-in steel structure of the straight self-tapping screw block-collecting concrete thin wallboard comprises an upper L-shaped through-length force transmission steel plate (9) and a lower L-shaped through-length force transmission steel plate (10), wherein the upper L-shaped through-length force transmission steel plate (9) and the lower L-shaped through-length force transmission steel plate (10) are welded with steel bars which are vertically distributed in a composite wallboard or an outer leaf reinforcing mesh and are welded with steel plate connecting steel bars (12), so that the self-tapping screw can penetrate through a wood block (11) of the L-shaped through-length force transmission steel plate and is bonded with the upper L-shaped through-length force transmission steel plate and the lower L-shaped through-length force transmission steel plate through glass cement or structural adhesive; the upper L-shaped through-length force transmission steel plate (9) and the lower L-shaped through-length force transmission steel plate (10) are connected together through a linear connecting steel plate (13) by a self-tapping screw (15);
the built-in steel structure of the L-shaped self-tapping nail block-collecting concrete thin wallboard is arranged at the corner position of the composite wallboard; the built-in steel structure of the L-shaped self-tapping screw block-assembled concrete thin wallboard comprises an upper L-shaped through-length force transmission steel plate (9) and a lower L-shaped through-length force transmission steel plate (10), wherein the upper L-shaped through-length force transmission steel plate (9) is welded with the lower L-shaped through-length force transmission steel plate (10) and a reinforcing mesh at the corner of a wallboard outer leaf reinforcing mesh, and the L-shaped through-length steel plate is welded with a steel plate connecting reinforcing bar (12), so that a self-tapping screw penetrates through a wood block (11) of the L-shaped force transmission steel plate to be bonded with the upper force transmission L-shaped steel plate and the lower force transmission L-shaped steel plate through glass cement or structural cement; the upper L-shaped through-length force transmission steel plate (9) and the lower L-shaped through-length force transmission steel plate (10) are connected together through an L-shaped connecting steel plate (14) by adopting a self-tapping screw (15);
the L-shaped embedded column is formed by placing L-shaped reinforcement cages prefabricated at the corners of the L-shaped composite wall boards in a cast-in-place manner with fine aggregate concrete, and the L-shaped embedded column is flush with the surfaces of the inner leaf concrete boards of the composite wall boards and connected into a whole.
2. The fabricated L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster connecting structure as claimed in claim 1, wherein the outer lobe concrete plate (3) and the inner lobe concrete plate (4) are cast by fine stone concrete with coarse aggregate diameter of 5mm to 10 mm.
3. The connecting structure of the assembled L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster block according to claim 1, wherein the heat insulation plate (5) is made of a polystyrene extruded sheet or a polystyrene foam plastic sheet or a phenolic foam composite sheet, dovetail grooves are formed in the surface of the heat insulation plate (5), and inner and outer blade concrete is meshed with the heat insulation plate (5) through the dovetail grooves.
4. The assembled L-shaped composite wall panel through-length force-transmission steel plate self-tapping nail cluster connection structure according to claim 1, wherein the inner blade plate reinforcement mesh (6) and the outer blade plate reinforcement mesh (7) are L-shaped distributed reinforcements of an assembled wall panel, and the inner blade plate reinforcement mesh (6) and the outer blade plate reinforcement mesh (7) are both made of horizontally distributed reinforcements and vertically distributed reinforcements through binding or welding connection.
5. The assembled L-shaped composite wall panel through-length force transmission steel plate self-tapping nail cluster connecting structure as claimed in claim 1, wherein a 135 ° hook is provided on one side of the tie bar (8), one side of the tie bar (8) with the oblique hook is tied, bound or welded with the horizontal and longitudinal steel bar nodes of the inner leaf steel bar net, and the other side penetrates through the heat insulation plate (5) to be welded with the outer leaf steel bar net nodes.
6. The fabricated L-shaped composite wallboard full-length force transmission steel plate self-tapping nail cluster connection structure of claim 1, wherein the upper L-shaped full-length force transmission steel plate (9) and the lower L-shaped full-length force transmission steel plate (10) are equal-limb L-shaped steel pieces; the upper L-shaped through-length force transmission steel plate (9) is welded with the inner leaf reinforcing mesh and the outer leaf reinforcing mesh at the bottom end of the assembled wall body and is welded with the steel plate connecting reinforcing bars (12), and the lower L-shaped through-length force transmission steel plate (10) at the top of the wall body is welded with the inner leaf reinforcing mesh and the outer leaf reinforcing mesh and is welded with the steel plate connecting reinforcing bars (12).
7. The assembly type L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster block connecting structure as claimed in claim 1, wherein the steel plate connecting steel bars (12) are horizontally distributed steel bars at the top end and the bottom end of an inner leaf steel bar mesh and an outer leaf steel bar mesh of the wallboard.
8. The assembled L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster connecting structure according to claim 1, wherein the lower part of the one-shaped connecting steel plate (13) is connected with the lower L-shaped through-length force transmission steel plate (10) of the lower composite wall outer leaf through a self-tapping nail after being lapped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220603130.4U CN218117399U (en) | 2022-03-19 | 2022-03-19 | Assembly type L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster connecting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220603130.4U CN218117399U (en) | 2022-03-19 | 2022-03-19 | Assembly type L-shaped composite wallboard through-length force transmission steel plate self-tapping nail cluster connecting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592746A (en) * | 2022-03-19 | 2022-06-07 | 北京工业大学 | Assembly type L-shaped composite wallboard full-length force transmission steel plate self-tapping nail set connection structure and manufacturing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592746A (en) * | 2022-03-19 | 2022-06-07 | 北京工业大学 | Assembly type L-shaped composite wallboard full-length force transmission steel plate self-tapping nail set connection structure and manufacturing method |
| CN114592746B (en) * | 2022-03-19 | 2024-03-22 | 北京工业大学 | Assembled L-shaped composite wallboard through-length force transmission steel plate self-tapping screw block connection structure and manufacturing method |
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