Spliced laminated board and preparation method thereof, splicing assembly and preparation method thereof

Abstract

The application discloses a spliced laminated slab and a preparation method thereof, a splicing assembly and a preparation method thereof, wherein the spliced laminated slab comprises a framework structure and a concrete pouring layer. The framework structure comprises a net rack and a nut, the nut comprises a first nut, the first nut is fixed to a first end of the net rack, and the first nut is used for being threadedly connected with a first bolt. The concrete pouring layer is poured on the framework structure. A second end of the concrete pouring layer is provided with a first mounting hole for the first bolt to pass through. The assembly of the two adjacent spliced laminated boards is realized through the connection of the bolt and the nut, the assembly mode can realize the close contact of the two adjacent spliced laminated boards, and the assembly mode is simple, convenient and high in assembly efficiency.

Description

Technical Field

[0001] This invention relates to the field of splicing composite panels, and in particular to a splicing composite panel and its preparation method, as well as splicing components and their preparation method. Background Technology

[0002] Precast composite slabs, used as structural base slabs, are a common structure in prefabricated buildings. Patent CN 212866534U discloses a precast composite floor slab with bent sections in its transverse reinforcing bars. The connection between adjacent precast composite floor slabs is achieved by casting these bent sections into concrete. However, this connection method requires concrete pouring and curing at the connection points between adjacent precast composite floor slabs, which is time-consuming. Summary of the Invention

[0003] The purpose of this invention is to provide a splicing composite panel and its preparation method, as well as a splicing component and its preparation method, to solve the problems existing in the prior art and improve construction efficiency.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention discloses a splicing composite panel, comprising:

[0006] A skeleton structure, comprising a space frame and nuts, wherein the nuts include a first nut, which is fixed to a first end of the space frame and is used for threaded connection with a first bolt;

[0007] A concrete pouring layer is poured onto the skeleton structure and encloses the skeleton structure inside; the second end of the concrete pouring layer is provided with a first mounting hole for the first bolt to pass through.

[0008] Preferably, the nut further includes a second nut, which is fixed to the second end of the space frame. The lateral position of the second nut is offset from that of the first nut. The second nut is used for threaded connection with the second bolt. The first end of the concrete pouring layer is provided with a second mounting hole for the second bolt to pass through.

[0009] Preferably, the space frame includes a longitudinal member whose length direction is longitudinal, and the longitudinal direction is perpendicular to the transverse direction; the first nut is fixed to the first end of the longitudinal member, and the second nut is fixed to the second end of the longitudinal member;

[0010] The axis of the first nut is perpendicular to the transverse direction, and the axis of the first nut forms a first angle α with the longitudinal direction; the axis of the second nut is perpendicular to the transverse direction, and the axis of the second nut forms a second angle β with the longitudinal direction.

[0011] Preferably, 10°≤α≤15°, 10°≤β≤15°.

[0012] Preferably, the longitudinal member includes a longitudinal tube and a concrete column cast inside the longitudinal tube.

[0013] Preferably, the top surface of the concrete pouring layer is provided with a first groove and a second groove, the first groove being used to avoid the first bolt when the first bolt is screwed in, and the second groove being used to avoid the second bolt when the second bolt is screwed in;

[0014] And / or, the top surface of the concrete pouring layer is provided with a concrete block positioning groove for placing concrete blocks.

[0015] Preferably, the first end of the concrete pouring layer is further provided with a positioning groove, and the second end of the concrete pouring layer is further provided with a positioning protrusion that matches the positioning groove; or, the first end of the concrete pouring layer is provided with a positioning protrusion, and the second end of the concrete pouring layer is provided with a positioning groove that matches the positioning protrusion.

[0016] This invention also discloses a method for preparing spliced ​​composite panels, comprising the following steps:

[0017] Step 1: Bind multiple transverse reinforcing bars to multiple pipe bodies to obtain a skeleton structure; the pipe bodies include longitudinal pipe bodies and inclined pipe bodies, the inclined pipe bodies are fixed to one end of the longitudinal pipe bodies, the inclined pipe bodies are perpendicular to the transverse reinforcing bars and form an angle with the longitudinal pipe bodies; the inclined pipe body at one end of the skeleton structure includes a first nut, and the inclined pipe body at the other end of the skeleton structure includes a second nut; the transverse positions of the inclined pipe bodies at both ends of the skeleton structure are staggered; the first nut is used for threaded connection with a first bolt, and the second nut is used for threaded connection with a second bolt;

[0018] Step 2: Weld multiple oblique tubes at the same end of the skeleton structure onto the same transverse reinforcing steel bar;

[0019] Step 3: Pour concrete into the longitudinal pipe body;

[0020] Step 4: Pour concrete onto the skeleton structure; the top surface of the concrete pouring layer is provided with a concrete block positioning groove for placing concrete blocks; the first end of the concrete pouring layer is provided with a second mounting hole for the second bolt to pass through, and the second end of the concrete pouring layer is provided with a first mounting hole for the first bolt to pass through; thus, the spliced ​​composite plate is obtained.

[0021] The present invention also discloses a splicing assembly, characterized in that it includes the above-mentioned splicing composite plate, and further includes the first bolt, the second bolt, the concrete block, the first pad, the second pad, the concrete filling layer and the cast-in-place concrete layer;

[0022] The splicing and overlapping panels include multiple panels, which are distributed longitudinally; the positioning groove is inserted and connected to the positioning protrusion to position two adjacent splicing and overlapping panels.

[0023] The first pad is located in the first groove, and the second pad is located in the second groove;

[0024] The head of the first bolt abuts against the first washer of one of the spliced ​​composite plates. The shank of the first bolt passes sequentially through the first washer, the first mounting hole of the spliced ​​composite plate, and is threadedly connected to the first nut of the spliced ​​composite plate adjacent to the first bolt. The head of the second bolt abuts against the second washer of one of the spliced ​​composite plates. The shank of the second bolt passes sequentially through the second washer, the second mounting hole of the spliced ​​composite plate, and is threadedly connected to the second nut of the spliced ​​composite plate adjacent to the second bolt.

[0025] The concrete filling layer includes a first filling layer located in the first trench and a second filling layer located in the second trench;

[0026] The concrete block is partially placed into the concrete block positioning groove;

[0027] The cast-in-place concrete layer covers the concrete block, the concrete fill layer, and the concrete pouring layer.

[0028] This invention also discloses a method for preparing a splicing component, which includes the following steps:

[0029] Step 1: Position the two adjacent splicing plates by interlocking the positioning protrusion with the positioning groove;

[0030] Step 2: Place the first pad in the first groove, so that the screw of the first bolt passes through the first pad and the first mounting hole of the spliced ​​composite plate in sequence, and is threadedly connected to the first nut of the spliced ​​composite plate adjacent to the spliced ​​composite plate, so that the head of the first bolt abuts against the first pad of one of the spliced ​​composite plates; place the second pad in the second groove, so that the screw of the second bolt passes through the second pad and the second mounting hole of the spliced ​​composite plate in sequence, and is threadedly connected to the second nut of the spliced ​​composite plate adjacent to the spliced ​​composite plate, so that the head of the second bolt abuts against the second pad of one of the spliced ​​composite plates;

[0031] Step 3: Pour concrete into the first tank to form the first filling layer, and pour concrete into the second tank to form the second filling layer;

[0032] Step 4: Place the lower part of the concrete block into the positioning groove of the concrete block;

[0033] Step 5: Pour concrete on the top of the concrete block, the concrete filling layer, and the concrete pouring layer; this completes the splicing assembly.

[0034] The present invention achieves the following technical effects compared to the prior art:

[0035] This invention achieves the assembly of two adjacent splicing composite plates through the connection of bolts and nuts. This assembly method can achieve close contact between two adjacent splicing composite plates, and is simple, convenient, and efficient.

[0036] In a preferred embodiment of the present invention, the first nut and the second nut are arranged at an angle so that the end faces of the first nut and the second nut are closer to the top surface of the concrete pouring layer, which makes it easier to screw the first bolt into the first nut and the second bolt into the second nut.

[0037] In a preferred embodiment of the present invention, two adjacent spliced ​​composite plates are positioned by interlocking with positioning grooves and positioning protrusions. This facilitates quick alignment of the two adjacent spliced ​​composite plates and provides a certain degree of shear resistance at the connection point of the adjacent spliced ​​composite plates. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1This is a schematic diagram of the spliced ​​composite plate from one perspective according to an embodiment of the present invention;

[0040] Figure 2 This is a schematic diagram of the splicing and overlapping plate from another perspective according to an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the skeleton structure in this embodiment;

[0042] Figure 4 This is a schematic diagram of the splicing component according to an embodiment of the present invention;

[0043] Figure 5 A partial structural diagram showing the connection point between two adjacent spliced ​​composite panels;

[0044] Figure 6 This is a schematic diagram of the structure of the aerated concrete filler in this embodiment.

[0045] Explanation of reference numerals in the attached figures:

[0046] T1 - First end; T2 - Second end;

[0047] 1-Spliced ​​composite slab; A-Spliced ​​composite slab A; B-Spliced ​​composite slab B;

[0048] 11-Skeleton structure; 111-First nut; 112-Second nut; 113-Longitudinal tube; 114-Inclined tube; 115-Transverse reinforcing steel; 116-Transverse reinforcing steel; 117-Concrete column; 1131-Inner tube; 1132-Outer tube;

[0049] 12-Concrete pouring layer; 121-First mounting hole; 122-Second mounting hole; 123-First groove; 124-Second groove; 125-Concrete block positioning groove; 126-Positioning protrusion; 127-Positioning groove; 1261-Horizontal protrusion; 1262-Vertical protrusion;

[0050] 2-Assembly components;

[0051] 21-First bolt; 22-Second bolt; 23-Concrete block; 24-First backing plate; 25-Second backing plate; 231-Reinforcing mesh; 232-Concrete covering block. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] The purpose of this invention is to provide a splicing composite panel and its preparation method, as well as a splicing component and its preparation method, to solve the problems existing in the prior art and improve construction efficiency.

[0054] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. In this embodiment, the first end and the second end are only used to distinguish the two ends of the component in the longitudinal direction for ease of explanation; the first end and the second end are not substantially different. In this embodiment, the first ends of each component of the spliced ​​composite plate are located on the same side of the spliced ​​composite plate, and the second ends of each component of the spliced ​​composite plate are located on the same side of the spliced ​​composite plate (and opposite to the first end). In this embodiment, the horizontal, longitudinal, and vertical directions are... Figure 4 The directions of extension of the three corresponding straight lines, of which any two lines are perpendicular to each other.

[0055] Reference Figures 1-6 This embodiment provides a spliced ​​composite slab 1, including a frame structure 11 and a concrete pouring layer 12. The frame structure 11 includes a space frame and nuts, including a first nut 111, which is fixed to the first end of the space frame and is used for threaded connection with a first bolt 21. The concrete pouring layer 12 is poured on the frame structure 11 and covers the frame structure 11 inside. The second end of the concrete pouring layer 12 is provided with a first mounting hole 121 for the first bolt 21 to pass through.

[0056] During assembly, the first end of the splicing composite plate 1 is abutted against the second end of the splicing composite plate A, aligning the first nut 111 at the first end of the splicing composite plate A with the first mounting hole 121 at the second end of the splicing composite plate B. Then, the first bolt 21 is passed through the first mounting hole 121 and threadedly connected to the first nut 111. Therefore, this embodiment achieves the assembly of two adjacent splicing composite plates 1 through the connection of the first bolt 21 and the first nut 111. This assembly method ensures close contact between adjacent splicing composite plates 1, is simple and convenient, and has high assembly efficiency.

[0057] Among them, splicing composite plate A and composite plate B are two adjacent splicing composite plates 1. Both are splicing composite plates 1 in the above embodiments. The purpose of distinguishing them is to facilitate the description of the scheme and the understanding of those skilled in the art.

[0058] As a possible example, in this embodiment, the nut further includes a second nut 112, which is fixed to the second end of the space frame. The lateral position of the second nut 112 is offset from that of the first nut 111, and the second nut 112 is used for threaded connection with the second bolt 22. The first end of the concrete pouring layer 12 is provided with a second mounting hole 122 for the second bolt 22 to pass through. In this way, both the first and second ends of the spliced ​​composite plate 1 can be connected to adjacent spliced ​​composite plates 1, and the connection position is provided with both the first nut 111 and the second nut 112, making the connection more secure.

[0059] Understandably, the concrete pouring layer 12 should not block the screw holes of the first nut 111 and the second nut 112, so that the first bolt 21 can be screwed into the first nut 111 and the second bolt 22 can be screwed into the second nut 112.

[0060] As one possible example, in this embodiment, the space frame includes a longitudinal member whose length is perpendicular to the transverse direction. A first nut 111 is fixed to a first end of the longitudinal member, and a second nut 112 is fixed to a second end of the longitudinal member. The axis of the first nut 111 is perpendicular to the transverse direction, and the axis of the first nut 111 forms a first angle α with the longitudinal direction. The axis of the second nut 112 is perpendicular to the transverse direction, and the axis of the second nut 112 forms a second angle β with the longitudinal direction. By setting the first nut 111 and the second nut 112 obliquely, the end faces of the first nut 111 and the second nut 112 are closer to the top surface of the concrete pouring layer 12, making it easier to screw the first bolt 21 into the first nut 111 and the second bolt 22 into the second nut 112. However, the actual implementation is not limited to this. For example, those skilled in the art can also set the axes of the first nut 111 and the second nut 112 horizontally, with the first nut 111 and the second nut 112 located a certain distance above the longitudinal member.

[0061] As a possible example, in this embodiment, 10°≤α≤15°, 10°≤β≤15°. Those skilled in the art may choose other angles depending on actual needs.

[0062] As a possible example, in this embodiment, the top surface of the concrete pouring layer 12 is provided with a first groove 123 and a second groove 124. The first groove 123 is used to avoid the first bolt 21 when it is screwed in, and the second groove 124 is used to avoid the second bolt 22 when it is screwed in.

[0063] As a possible example, in this embodiment, the top surface of the concrete pouring layer 12 is provided with a concrete block positioning groove 125 for placing concrete blocks 23. Depending on the actual needs, a corresponding concrete block 23, such as an aerated concrete block or an aerated concrete filler, can be placed in the concrete block positioning groove 125.

[0064] As a possible example, in this embodiment, the first end of the concrete pouring layer 12 is further provided with a positioning groove 127, and the second end of the concrete pouring layer 12 is further provided with a positioning protrusion 126 that matches the positioning groove 127. Alternatively, the first end of the concrete pouring layer 12 is provided with a positioning protrusion 126, and the second end of the concrete pouring layer 12 is provided with a positioning groove 127 that matches the positioning protrusion 126. On the one hand, the interlocking fit between the positioning groove 127 and the positioning protrusion 126 facilitates the quick alignment of two adjacent spliced ​​composite plates 1. On the other hand, the interlocking fit between the positioning protrusion 126 and the positioning groove 127 can provide a certain shear resistance at the connection of adjacent spliced ​​composite plates 1.

[0065] As a possible example, in this embodiment, the positioning protrusion 126 is fence-shaped, including a horizontal protrusion 1261 and a vertical protrusion 1262, with the horizontal protrusion 1261 and the vertical protrusion 1262 integrally connected. The length direction of the horizontal protrusion 1261 is horizontal, and the length direction of the vertical protrusion 1262 is vertical, perpendicular to both the horizontal and vertical directions. Multiple vertical protrusions 1262 are included, and are respectively located above and below the horizontal protrusion 1261.

[0066] As one possible example, in this embodiment, the longitudinal member includes a longitudinal tube 113 and a concrete column 117 cast within the longitudinal tube 113, the concrete column 117 supporting the longitudinal tube 113 from the inside. Depending on the actual needs, those skilled in the art may also choose an integral longitudinal member.

[0067] As a possible example, in this embodiment, the first nut 111 is the threaded portion of the oblique tube 114 and is located at one end of the skeleton structure 11; the second nut 112 is the threaded portion of the oblique tube 114 and is located at the other end of the skeleton structure 11. The oblique tube 114 is fixedly connected to the longitudinal tube 113, thereby achieving an indirect fixed connection between the first nut 111 and the longitudinal tube 113, and an indirect fixed connection between the second nut 112 and the longitudinal tube 113. The oblique tube 114 and the longitudinal tube 113 form a tube body. Depending on the actual needs, those skilled in the art can also choose other fixing methods for the first nut 111 and the longitudinal tube 113, such as providing an oblique cut at the end of the longitudinal tube 113 and fixing the first nut 111 to the oblique cut.

[0068] As one possible example, in this embodiment, the longitudinal tube 113 includes an inner tube 1131 and an outer tube 1132. The outer tube 1132 is sleeved on the outside of one end of the inner tube 1131 and threadedly connected to the inner tube 1131. The oblique tube 114 is integrally connected to the outer tube 1132, thereby achieving the connection between the oblique tube 114 and the longitudinal tube 113. Depending on the actual needs, those skilled in the art can also choose other connection methods to achieve the connection between the oblique tube 114 and the longitudinal tube 113, such as welding.

[0069] As one possible example, in this embodiment, the entire tube is made of stainless steel. Depending on the actual needs, the tube can also be made of other materials, such as FRP.

[0070] As a possible example, in this embodiment, the concrete column 117 cast within the longitudinal pipe 113 is preferably green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6%, to provide a certain degree of ductility. Thus, when the longitudinal pipe 113 deforms, the concrete column 117 inside can fit more tightly against the longitudinal pipe 113, thereby enhancing its load-bearing capacity. Depending on the actual needs, those skilled in the art can also choose other types of concrete. For example, in this embodiment, the green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6% can be ECC concrete with a strain degree of not less than 6%.

[0071] As a possible example, in this embodiment, the space frame includes transverse reinforcing bars 115 extending laterally, and multiple (all or part) oblique tubes 114 at the same end of the space frame are welded to the same transverse reinforcing bar. In this way, the force on the oblique tubes 114 can be distributed to other oblique tubes 114 through the transverse reinforcing bars 115, avoiding damage to the spliced ​​composite plate 1 due to excessive local load.

[0072] As one possible example, in this embodiment, the space frame includes transverse reinforcing bars 116 that are transverse in length, and the transverse reinforcing bars 116 are tied to the longitudinal tubes 113. Depending on the actual needs, the transverse reinforcing bars 116 can also be replaced with connectors of other materials, or connectors with other length directions.

[0073] As a possible example, in this embodiment, the ends of both the inclined pipe 114 and the longitudinal pipe 113 extend beyond the end face of the concrete pouring layer 12. Specifically, the inclined pipe 114 extends onto the vertical protrusion 1262 above the transverse protrusion 1261, and the longitudinal pipe 113 extends onto the transverse protrusion 1261.

[0074] This embodiment also provides a method for preparing a spliced ​​composite plate 1, which is used to prepare the spliced ​​composite plate 1 of this embodiment. The method for preparing the spliced ​​composite plate 1 includes the following steps:

[0075] Step 1: Bind multiple transverse reinforcing bars 116 to multiple pipe bodies to obtain a skeleton structure 11. The pipe bodies include longitudinal pipe bodies 113 and inclined pipe bodies 114. The inclined pipe bodies 114 are fixed to one end of the longitudinal pipe body 113, and are perpendicular to the transverse reinforcing bars 116 and form an angle with the longitudinal pipe body 113. One end of the inclined pipe body 114 in the skeleton structure 11 includes a first nut 111, and the other end includes a second nut 112. The transverse positions of the inclined pipe bodies 114 at both ends of the skeleton structure 11 are staggered. The first nut 111 is used for threaded connection with the first bolt 21, and the second nut 112 is used for threaded connection with the second bolt 22.

[0076] Step 2: Weld multiple inclined tubes 114 at the same end of the skeleton structure 11 onto the same transverse reinforcing steel bar.

[0077] Step 3: Pour concrete into the longitudinal pipe 113. The concrete poured here is preferably green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6%.

[0078] Step 4: Pour concrete onto the frame structure 11 to form a concrete pouring layer 12. The top surface of the concrete pouring layer 12 has a concrete block positioning groove 125 for placing concrete blocks 23. The first end of the concrete pouring layer 12 has a second mounting hole 122 for the second bolt 22 to pass through, and the second end of the concrete pouring layer 12 has a first mounting hole 121 for the first bolt 21 to pass through. This completes the spliced ​​composite plate 1.

[0079] Reference Figures 1-6 This embodiment also provides a splicing component 2, which includes the splicing composite plate 1 of this embodiment, and also includes a first bolt 21, a second bolt 22, a concrete block 23, a first pad 24, a second pad 25, a concrete filling layer and a cast-in-place concrete layer.

[0080] The splicing composite plate 1 includes multiple splicing composite plates 1, which are distributed longitudinally. The positioning groove 127 is inserted and connected to the positioning protrusion 126 to position two adjacent splicing composite plates 1.

[0081] The first pad 24 is located inside the first groove 123, and the second pad 25 is located inside the second groove 124.

[0082] The head of the first bolt 21 abuts against the first washer 24 of one of the splicing composite plates 1 (referred to as splicing composite plate A). The shank of the first bolt 21 passes sequentially through the first washer 24, the first mounting hole 121 of the splicing composite plate 1 (splicing composite plate A), and is threadedly connected to the first nut 111 of the splicing composite plate 1 (splicing composite plate B) adjacent to the splicing composite plate 1 (splicing composite plate A). The head of the second bolt 22 abuts against the second washer 25 of one of the splicing composite plates 1 (referred to as splicing composite plate B). The shank of the second bolt 22 passes sequentially through the second washer 25, the second mounting hole 122 of the splicing composite plate 1 (splicing composite plate B), and is threadedly connected to the second nut 112 of the splicing composite plate 1 (splicing composite plate A) adjacent to the splicing composite plate 1 (splicing composite plate B).

[0083] The concrete filling layer includes a first filling layer located in the first trench 123 and a second filling layer located in the second trench 124.

[0084] The lower part of the concrete block 23 is placed into the concrete block positioning groove 125.

[0085] The cast-in-place concrete layer covers the concrete block 23, the concrete filling layer, and the concrete pouring layer 12.

[0086] In this embodiment, multiple (all or some) second bolts 22 at the first end of the splicing assembly 2 abut against the same second pad 25, and multiple (all or some) first bolts 21 at the second end of the splicing assembly 2 abut against the same first pad 24. In this way, the force on the second bolts 22 can be distributed to the other second bolts 22 through the second pad 25, and the force on the first bolts 21 can be distributed to the other first bolts 21 through the first pad 24, preventing the splicing assembly 2 from being damaged due to excessive local load.

[0087] As a possible example, in this embodiment, the material of both the first and second filling layers is preferably green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6% to provide a certain degree of ductility. The outer side of the concrete block 23 is preferably coated with a concrete layer, which is green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6% to provide a certain degree of ductility. The contact surface between two adjacent concrete pouring layers 12 is preferably coated with a concrete layer, which is green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6% to provide a certain degree of ductility and prevent cracking at the joint. Depending on the actual needs, those skilled in the art may also choose other types of concrete.

[0088] As a possible example, in this embodiment, both the first groove 123 and the second groove 124 are V-shaped grooves, with different angles between the two sides of the V-shaped groove and the vertical plane. One side of the V-shaped groove is in contact with the first pad 24 or the second pad 25, and the other side of the V-shaped groove supports the lower edge of the first pad 24 or the second pad 25.

[0089] As a possible example, in this embodiment, both the first bolt 21 and the second bolt 22 are shear bolts, preferably high-strength shear bolts of grade 12.9. The first nut 111 is made of the same material as the first bolt 21, and the second nut 112 is made of the same material as the second bolt 22. Depending on the actual needs, those skilled in the art can flexibly select the types of bolts and nuts.

[0090] As a possible example, in this embodiment, the concrete block 23 can be an aerated concrete block, or other types of concrete blocks 23 such as an aerated concrete infill, which can be selected according to actual needs by those skilled in the art. When an aerated concrete infill is selected, the aerated concrete infill preferably includes a steel mesh 231 and a concrete-covered block 232. The steel mesh 231 includes fixedly connected transverse and longitudinal reinforcing bars, with the two ends of the transverse reinforcing bars extending out of the concrete-covered block 232, and the longitudinal reinforcing bars being wrapped inside the concrete-covered block 232. It should be noted that the cast-in-place concrete layer usually has a reinforcing steel skeleton, and the exposed transverse reinforcing bars of the aerated concrete infill are used to overlap the reinforcing steel skeleton of the cast-in-place concrete layer. In addition, the concrete-covered block 232 preferably has an uneven surface, such a rough surface can be formed by sandblasting. This can increase the contact area between the concrete-covered block 232 and the cast-in-place concrete layer, enhancing the integrity and overall load-bearing performance of the splicing component 2.

[0091] This embodiment also provides a method for preparing the splicing component 2, which is used to prepare the splicing component 2 of this embodiment. The method for preparing the splicing component 2 includes the following steps:

[0092] Step 1: Position the two adjacent spliced ​​composite plates 1 by interlocking the positioning protrusion 126 with the positioning groove 127. Before interlocking, it is preferable to coat each of the contact surfaces of the two adjacent concrete pouring layers 12 with a layer of concrete, which is green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6%, to provide a certain ductility and prevent cracking at the joint.

[0093] Step 2: Place a first pad 24 in the first groove 123, so that the thread of the first bolt 21 passes through the first pad 24 and the first mounting hole 121 of the spliced ​​composite plate 1 in sequence, and is threadedly connected to the first nut 111 of the spliced ​​composite plate 1 adjacent to the spliced ​​composite plate 1, so that the head of the first bolt 21 abuts against the first pad 24 of one of the spliced ​​composite plates 1. Place a second pad 25 in the second groove 124, so that the thread of the second bolt 22 passes through the second pad 25 and the second mounting hole 122 of the spliced ​​composite plate 1 in sequence, and is threadedly connected to the second nut 112 of the spliced ​​composite plate 1 adjacent to the spliced ​​composite plate 1, so that the head of the second bolt 22 abuts against the second pad 25 of one of the spliced ​​composite plates 1.

[0094] Step 3: Pour concrete into the first tank 123 to form the first filling layer, and pour concrete into the second tank 124 to form the second filling layer.

[0095] Step 4: Place the lower part of the concrete block 23 into the concrete block positioning groove 125. Before placing it in, it is preferable to apply a layer of green ultra-high ductility alkali-activated concrete with a strain degree of not less than 6% to the surface of the concrete block 23 to provide a certain degree of ductility.

[0096] Step 5: Pour concrete on top of concrete block 23, concrete filling layer and concrete pouring layer 12 to form cast-in-place concrete layer. This completes the splicing component 2.

[0097] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A type of spliced ​​composite panel, characterized in that, include: A skeleton structure, comprising a space frame and nuts, wherein the nuts include a first nut, which is fixed to a first end of the space frame and is used for threaded connection with a first bolt. A concrete pouring layer is cast onto the skeleton structure and encloses the skeleton structure within it; the second end of the concrete pouring layer is provided with a first mounting hole for the first bolt to pass through; The nut also includes a second nut, which is fixed to the second end of the space frame. The lateral position of the second nut is offset from that of the first nut. The second nut is used for threaded connection with the second bolt. The first end of the concrete pouring layer is provided with a second mounting hole for the second bolt to pass through.

2. The spliced ​​composite plate according to claim 1, characterized in that, The space frame includes a longitudinal member that runs longitudinally, with the longitudinal direction perpendicular to the transverse direction; the first nut is fixed to the first end of the longitudinal member, and the second nut is fixed to the second end of the longitudinal member; The axis of the first nut is perpendicular to the transverse direction, and the axis of the first nut forms a first angle α with the longitudinal direction; the axis of the second nut is perpendicular to the transverse direction, and the axis of the second nut forms a second angle β with the longitudinal direction.

3. The spliced ​​composite plate according to claim 2, characterized in that, 10°≤α≤15°，10°≤β≤15°。 4. The spliced ​​composite plate according to claim 2, characterized in that, The longitudinal component includes a longitudinal tube and a concrete column cast inside the longitudinal tube.

5. The spliced ​​composite plate according to claim 2, characterized in that, The top surface of the concrete pouring layer is provided with a first groove and a second groove. The first groove is used to avoid the first bolt when the first bolt is screwed in, and the second groove is used to avoid the second bolt when the second bolt is screwed in. And / or, the top surface of the concrete pouring layer is provided with a concrete block positioning groove for placing concrete blocks.

6. The spliced ​​composite plate according to claim 5, characterized in that, The first end of the concrete pouring layer is provided with a positioning groove, and the second end of the concrete pouring layer is provided with a positioning protrusion that matches the positioning groove; or, the first end of the concrete pouring layer is provided with a positioning protrusion, and the second end of the concrete pouring layer is provided with a positioning groove that matches the positioning protrusion.

7. A method for preparing a spliced ​​composite panel, characterized in that, Includes the following steps: Step 1: Bind multiple transverse reinforcing bars to multiple pipe bodies to obtain a skeleton structure; the pipe bodies include longitudinal pipe bodies and inclined pipe bodies, the inclined pipe bodies are fixed to one end of the longitudinal pipe bodies, the inclined pipe bodies are perpendicular to the transverse reinforcing bars and form an angle with the longitudinal pipe bodies; the inclined pipe body at one end of the skeleton structure includes a first nut, and the inclined pipe body at the other end of the skeleton structure includes a second nut; the transverse positions of the inclined pipe bodies at both ends of the skeleton structure are staggered; the first nut is used for threaded connection with a first bolt, and the second nut is used for threaded connection with a second bolt; Step 2: Weld multiple oblique tubes at the same end of the skeleton structure onto the same transverse reinforcing steel bar; Step 3: Pour concrete into the longitudinal pipe body; Step 4: Pour concrete onto the skeleton structure to obtain a concrete pouring layer; the top surface of the concrete pouring layer is provided with a concrete block positioning groove for placing concrete blocks; the first end of the concrete pouring layer is provided with a second mounting hole for the second bolt to pass through, and the second end of the concrete pouring layer is provided with a first mounting hole for the first bolt to pass through; thus, the spliced ​​composite plate is obtained.

8. A splicing component, characterized in that, Including the spliced ​​composite plate as described in claim 6, it also includes the first bolt, the second bolt, the concrete block, the first pad, the second pad, the concrete filling layer, and the cast-in-place concrete layer; The splicing and overlapping plates include multiple splicing and overlapping plates, which are distributed longitudinally; the positioning groove is inserted and connected to the positioning protrusion to position two adjacent splicing and overlapping plates; The first pad is located in the first groove, and the second pad is located in the second groove; The head of the first bolt abuts against the first washer of one of the spliced ​​composite plates. The shank of the first bolt passes sequentially through the first washer, the first mounting hole of the spliced ​​composite plate, and is threadedly connected to the first nut of the spliced ​​composite plate adjacent to the first bolt. The head of the second bolt abuts against the second washer of one of the spliced ​​composite plates. The shank of the second bolt passes sequentially through the second washer, the second mounting hole of the spliced ​​composite plate, and is threadedly connected to the second nut of the spliced ​​composite plate adjacent to the second bolt. The concrete filling layer includes a first filling layer located in the first trench and a second filling layer located in the second trench. The concrete block is partially placed into the concrete block positioning groove; The cast-in-place concrete layer covers the concrete block, the concrete fill layer, and the concrete pouring layer.

9. A method for preparing a splicing component, characterized in that, The method for preparing the splicing assembly as described in claim 8 includes the following steps: Step 1: Position the two adjacent splicing plates by interlocking the positioning protrusion with the positioning groove; Step 2: Place the first pad in the first groove, so that the screw of the first bolt passes through the first pad and the first mounting hole of the spliced ​​composite plate in sequence, and is threadedly connected to the first nut of the spliced ​​composite plate adjacent to the spliced ​​composite plate, so that the head of the first bolt abuts against the first pad of one of the spliced ​​composite plates; place the second pad in the second groove, so that the screw of the second bolt passes through the second pad and the second mounting hole of the spliced ​​composite plate in sequence, and is threadedly connected to the second nut of the spliced ​​composite plate adjacent to the spliced ​​composite plate, so that the head of the second bolt abuts against the second pad of one of the spliced ​​composite plates; Step 3: Pour concrete into the first tank to form the first filling layer, and pour concrete into the second tank to form the second filling layer; Step 4: Place the lower part of the concrete block into the positioning groove of the concrete block; Step 5: Pour concrete on the top of the concrete block, the concrete filling layer, and the concrete pouring layer; this completes the splicing assembly.

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