A construction process for a steel mesh truss hollow core panel

Abstract

This invention discloses a construction process for a steel mesh truss hollow core slab, comprising a steel mesh, first longitudinal reinforcement bars, snap-fit ​​steel trusses, second longitudinal reinforcement bars, and a filler layer. The steel mesh surface is provided with several parallel, spaced-apart raised reinforcing ribs. The snap-fit ​​steel trusses are spaced-apart and parallel, with several first and second longitudinal reinforcement bars perpendicularly positioned on both sides of the snap-fit ​​steel trusses to form a spatial grid. Several snap-fit ​​grooves are provided on one side of the snap-fit ​​steel trusses, and the steel mesh is assembled to one side of the spatial grid through snap-fit ​​engagement with the raised reinforcing ribs and snap-fit ​​grooves. Several longitudinally and transversely arranged cavities are formed within the spatial grid, and filler boxes are placed within the cavities. The filler layer covers and encloses the steel mesh. This invention belongs to the category of prefabricated assembled hollow core slabs, eliminating the need for formwork at the bottom of the slab, reducing formwork investment and waste, and meeting the requirements of green and energy-saving buildings.

Description

Technical Field

[0001] This invention relates to the field of building technology, and in particular to a construction process for a steel mesh truss hollow core panel. Background Technology

[0002] In the construction industry, in order to ensure the compressive and shear strength requirements of floor slabs, construction techniques that are "energy-saving, environmentally friendly and emission-reducing" are also being pursued. With the development of technology, steel mesh cage support technology has gradually become a new type of structural construction technique when making the main load-bearing structure of a building.

[0003] Existing prefabricated floor slabs on the market mainly include PC composite slabs and steel truss floor decks. Their biggest drawbacks are large transport volume and high freight costs, heavy weight making handling inconvenient, high hoisting costs, high assembly precision, high operational difficulty, difficulty in rebar lap joints, and difficulty in controlling the quality of pouring at joints. The lower flange of existing cast-in-place hollow floor slabs is cast on-site, which easily leads to problems such as uneven lower flange thickness, difficulty in strength control, easy floating of the filling box during pouring, uneven upper flange thickness, and rebar displacement during actual construction. Existing patent number 201810404653.4 discloses a steel truss hollow prefabricated base slab. Although the lower flange uses a prefabricated structure, its prefabricated base slab is too large, and the bonding strength with the beam structure during on-site construction is not ideal. Transportation and storage are extremely inconvenient, and handling during on-site construction is also time-consuming and labor-intensive, posing significant construction difficulties.

[0004] Therefore, it is necessary to develop a steel mesh truss hollow core panel and construction process to solve the above problems. Summary of the Invention

[0005] One of the main objectives of this invention is to provide a construction process for steel mesh truss hollow core panels, which eliminates the need for formwork at the bottom of the floor slab, reducing formwork investment and waste, meeting the requirements of green and energy-saving buildings, lowering construction costs, and improving production efficiency.

[0006] This invention achieves the above objectives through the following technical solution: a construction process for a steel mesh truss hollow core panel, comprising a first steel mesh, a first longitudinal reinforcing bar, a snap-fit ​​reinforcing bar truss, a second longitudinal reinforcing bar, a first filler layer, and a second filler layer; the surface of the first steel mesh is provided with a plurality of parallel and spaced protruding reinforcing ribs; the snap-fit ​​reinforcing bar truss is spaced and parallel, and a plurality of the first longitudinal reinforcing bars and the second longitudinal reinforcing bars are perpendicularly arranged on both sides of the snap-fit ​​reinforcing bar truss, forming a spatial grid with a crisscross structure; a plurality of snap-fit ​​grooves are provided on one side of the snap-fit ​​reinforcing bar truss, and the first steel mesh is assembled on one side of the spatial grid through snap-fit ​​cooperation between the protruding reinforcing ribs and the snap-fit ​​grooves; a plurality of longitudinally and transversely arranged cavities are formed in the spatial grid, and filling boxes are provided in the cavities; the first filler layer covers the first steel mesh and encloses the first steel mesh; the second filler layer is located on the other side of the spatial grid;

[0007] The snap-fit ​​steel truss includes two parallel horizontal steel bars and several snap-fit ​​connecting pieces connecting the two horizontal steel bars. The snap-fit ​​connecting pieces are arranged in parallel at intervals. Each snap-fit ​​connecting piece is a plate structure with snap-fit ​​grooves at both ends. The snap-fit ​​grooves protrude from the horizontal steel bar body and snap-fit ​​with the convex reinforcing ribs on the first steel mesh and the second steel mesh.

[0008] The construction process of the steel mesh truss hollow core panel includes the following steps:

[0009] 1) Lay the first longitudinal steel bars in parallel according to the design spacing to form the first steel bar layer;

[0010] 2) Place the snap-fit ​​steel truss perpendicular to the direction of the first longitudinal steel bar on the first steel bar layer, and then connect the first longitudinal steel bar to the snap-fit ​​steel truss; the lower end of the snap-fit ​​steel truss is provided with several snap-fit ​​slots.

[0011] 3) Lay a second longitudinal steel bar on the snap-fit ​​steel truss to form a second steel bar layer. The second longitudinal steel bar is placed in a one-to-one correspondence with the first longitudinal steel bar. Then, the second longitudinal steel bar is connected to the snap-fit ​​steel truss. The first steel bar layer, the snap-fit ​​steel truss and the second steel bar layer together form a spatial grid with a crisscross support structure. Several cavities are formed in the spatial grid.

[0012] 4) Install the first steel mesh on the side of the snap-fit ​​steel truss. Several protruding reinforcing ribs are arranged parallel to each other on the first steel mesh. The snap-fit ​​groove in the snap-fit ​​steel truss is used to snap and connect with the protruding reinforcing ribs on the first steel mesh.

[0013] 5) A filler material is poured onto the surface of the first steel mesh to form a first filler layer, thus constituting an assembly;

[0014] 6) Erect a support frame inside the building and hoist the assembly onto the support frame;

[0015] 7) Place a filling box in each of the cavities;

[0016] 8) Pour filler material to fill the gap between the cavity and the filling box, and form an upper support plate structure above the filling box to form a second filler layer.

[0017] Furthermore, the gap between the cavity and the filling box is filled with a filler material, which is concrete, cement mortar, gypsum mortar, or dry-mixed mortar.

[0018] Furthermore, the first filler layer and the second filler layer are one or more combinations of concrete, cement mortar, gypsum mortar or dry-mixed mortar.

[0019] Furthermore, the snap-fit ​​connecting piece and the protruding reinforcing rib are respectively provided one-to-one.

[0020] Another main objective of this invention is to provide a different construction process for a steel mesh truss hollow core panel. The steel mesh truss hollow core panel includes a first steel mesh, first longitudinal reinforcing bars, a snap-fit ​​reinforcing bar truss, a second longitudinal reinforcing bar, a first filler layer, and a second filler layer. The surface of the first steel mesh is provided with a plurality of parallel, spaced-apart protruding reinforcing ribs. The snap-fit ​​reinforcing bar truss is spaced-apart and parallel, with a plurality of the first and second longitudinal reinforcing bars perpendicularly arranged on both sides of the snap-fit ​​reinforcing bar truss, forming a spatial grid with a crisscross structure. One side of the snap-fit ​​reinforcing bar truss is provided with a plurality of snap-fit ​​grooves, and the first steel mesh is assembled into the core panel by the snap-fitting of the protruding reinforcing ribs with the snap-fit ​​grooves. One side of the space frame; several cavities are formed in the space frame, and filling boxes are provided in the cavities; the first filling layer covers the first steel mesh and encloses the first steel mesh; the second filling layer is located on the other side of the space frame; the snap-fit ​​steel truss includes two parallel horizontal steel bars and several snap-fit ​​connecting pieces connecting the two horizontal steel bars, the snap-fit ​​connecting pieces are arranged in parallel at intervals; the snap-fit ​​connecting piece is a plate structure and has snap-fit ​​grooves at both ends, the snap-fit ​​grooves protrude from the horizontal steel bar body and snap-fit ​​with the convex reinforcing ribs on the first steel mesh and the second steel mesh;

[0021] It includes the following steps:

[0022] 1) Lay the first longitudinal steel bars parallel to the design spacing to form the first steel bar layer;

[0023] 2) Place the snap-fit ​​steel truss perpendicular to the direction of the first longitudinal steel bar on the first steel bar layer, and then connect the first longitudinal steel bar to the snap-fit ​​steel truss; the lower end of the snap-fit ​​steel truss is provided with several snap-fit ​​slots.

[0024] 3) Lay a second longitudinal steel bar on the snap-fit ​​steel truss to form a second steel bar layer. The second longitudinal steel bar is placed in a one-to-one correspondence with the first longitudinal steel bar. Then, the second longitudinal steel bar is connected to the snap-fit ​​steel truss. The first steel bar layer, the snap-fit ​​steel truss and the second steel bar layer together form a spatial grid with a crisscross support structure. Several cavities are formed in the spatial grid.

[0025] 4) The first steel mesh is installed on the side of the snap-fit ​​steel truss, and several protruding reinforcing ribs are arranged parallel to each other on the first steel mesh; the snap-fit ​​groove in the snap-fit ​​steel truss is used to snap and connect with the protruding reinforcing ribs on the steel mesh.

[0026] 5) A filler material is poured onto the surface of the first steel mesh to form a first filler layer;

[0027] 6) Place a filling box in each of the cavities formed by the spatial grid structure on the first filling layer;

[0028] 7) Pour in filler material to fill the gap between the cavity and the filling box, and form an upper support plate structure above the filling box to form a second filler layer, thus forming a prefabricated assembly plate.

[0029] 8) Erect a support frame inside the building, and then use the support frame to fix and support the prefabricated panels after they are hoisted into place.

[0030] Compared with existing technologies, the beneficial effects of this invention—a steel mesh truss hollow core panel and its construction process—are as follows: It is a prefabricated assembled hollow floor slab, requiring no formwork at the bottom, reducing formwork investment and waste, and meeting the requirements of green and energy-saving buildings; the space frame and the first filling layer can be prefabricated on-site, and the assembled structure can be directly hoisted onto the support frame as a whole. After placing filling boxes into the cavities in the assembly, the second filling layer is poured, which greatly shortens the construction period and improves construction efficiency. The floor slabs in this case are characterized by their light weight, simple manufacturing, large span, high load-bearing capacity, strong seismic resistance, no need for formwork support at the bottom of the gabion, and the precast base slab containing steel bars with good bonding between the steel bars and the cast-in-place concrete, which meets the requirements for tensile anchorage of the steel bars and enhances the tensile performance of the lower flange plate. This ensures that the thickness of the lower flange plate of the floor slab is uniform and the hanging force is strong. At the same time, the top and sides of the filling box have good bonding with the cast-in-place concrete, thereby ensuring the integrity of the filling box and the floor slab. This enhances the structural strength and decorative hanging requirements of the floor slab after it is formed, and can reduce the overall cost of prefabricated floor slabs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the cross-sectional structure of an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of a partial cross-sectional structure according to an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the snap-fit ​​steel truss structure in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the space frame structure in an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the assembly structure in an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure after the assembly of the present invention is hoisted onto the support frame and the filling box is placed therein, according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the exploded side structure of the wall panel in an embodiment of the present invention;

[0038] The numbers in the image represent:

[0039] 100 steel mesh truss hollow core panel;

[0040] 1 First steel mesh; 11 Raised reinforcing rib; 2 First longitudinal steel bar; 3 Clip-on steel truss; 31 Horizontal steel bar; 32 Clip-on connecting piece; 321 Clip-on groove; 4 Second longitudinal steel bar; 5 First filling layer; 6 Cavity; 7 Filling box; 8 Second filling layer; 9 Support frame; 10 Second steel mesh. Detailed Implementation

[0041] Example 1:

[0042] Please refer to Figures 1-7This embodiment is a steel mesh truss hollow core panel 100, which includes a first steel mesh 1, a first longitudinal steel bar 2, a snap-fit ​​steel bar truss 3, a second longitudinal steel bar 4, a first filler layer 5, and a second filler layer 8. The surface of the first steel mesh 1 is provided with a plurality of parallel and spaced protruding reinforcing ribs 11. A plurality of first longitudinal steel bars 2 are distributed in parallel on the first steel mesh 1 to form a first steel bar layer. A plurality of snap-fit ​​steel bar trusses 3 are provided on the first steel bar layer, and the snap-fit ​​steel bar trusses 3 are distributed in parallel with each other and perpendicular to the first longitudinal steel bars 2. The second longitudinal steel bars 4 are arranged on the snap-fit ​​steel bar trusses 3 in a one-to-one correspondence with the first longitudinal steel bars 2. The first steel mesh 1 is embedded in the first filler layer 5. The first longitudinal steel bars 2, the snap-fit ​​steel bar trusses 3, and the second longitudinal steel bars 4 together form a plurality of crisscrossing cavities 6 located above the first filler layer 5, and each cavity 6 contains a filling box 7. The second filler layer 8 fills the gap between the cavity 6 and the filling box 7, and covers the second steel bar layer inside, forming an upper support plate above the filling box 7.

[0043] The first longitudinal steel bar 2, the snap-fit ​​steel truss 3, and the second longitudinal steel bar 4 constitute a spatial grid with a crisscrossing support structure.

[0044] The snap-fit ​​steel truss 3 is welded together with the first longitudinal steel bar 2 and the second longitudinal steel bar 4. In other embodiments, they can also be connected together by binding, screwing, riveting, or using connectors. In this embodiment, the connection method of the steel bars is not limited.

[0045] The snap-fit ​​steel truss 3 includes two horizontal steel bars 31 distributed parallel to each other vertically, and several snap-fit ​​connecting pieces 32 vertically connecting the two horizontal steel bars 31. The snap-fit ​​connecting pieces 32 are arranged horizontally at intervals. Each snap-fit ​​connecting piece 32 is a plate structure with a snap-fit ​​groove 321 at its lower end. The snap-fit ​​groove 321 at the lower end of the snap-fit ​​connecting piece 32 protrudes from the body of the horizontal steel bar 31 and snaps into the protruding reinforcing rib 11. The upper end of the snap-fit ​​connecting piece 32 can also be provided with a snap-fit ​​groove 321 as needed.

[0046] The snap-fit ​​connecting piece 32 is set one-to-one with the protruding reinforcing rib 11 on the first steel mesh 1.

[0047] The second longitudinal steel bar 4 and the first longitudinal steel bar 2 are bent at both ends to form a hook structure.

[0048] The horizontal steel bars 31 in the snap-fit ​​steel truss 3 are bent at both ends to form a hook structure.

[0049] This embodiment also includes a second steel mesh 10, which is located on both sides of the space frame, and a second filler layer 8 covers the second steel mesh 10 and encloses it.

[0050] In another embodiment, the gap between the filling box 7 and the cavity 6 can also be filled separately with the second filling layer 8.

[0051] This embodiment describes a steel mesh truss hollow core panel 100, which can be applied to floor slabs or wall panels. When used as a floor slab, a spatial grid structure is formed by a snap-fit ​​steel truss and two steel reinforcement layers. Several snap-fit ​​groove structures are formed on both sides of the spatial grid structure. A first steel mesh with convex reinforcing ribs serves as the bottom carrier. Mortar is poured onto the bottom first steel mesh to form a pre-cast bottom plate, which is the first filling layer in this embodiment. Filling boxes are set in the cavities of the spatial grid structure. Concrete is then poured on the upper layer to form the first filling layer, thus forming the steel mesh truss hollow core floor slab. When used as a wall panel, the snap-fit ​​steel truss is set vertically. Steel reinforcement layers are set on the front and rear sides of the snap-fit ​​steel truss to form a spatial grid. Filling boxes are set in the cavities formed by the spatial grid. Steel mesh is then set on the left and right sides or one side of the spatial grid. A mortar layer is then applied to form two filling layers. An insulation layer can also be added to form an insulated wall. Concrete is then poured between the two filling layers to form the steel mesh truss hollow core wall panel.

[0052] This embodiment also provides a construction process for a steel mesh truss hollow core panel, which includes the following steps:

[0053] 1) Lay the first longitudinal steel bars 2 parallel to each other according to the design spacing to form the first steel bar layer;

[0054] 2) Place the snap-fit ​​steel truss 3 perpendicular to the direction of the first longitudinal steel bar 2 on the first steel bar layer, and then connect the first longitudinal steel bar 2 to the snap-fit ​​steel truss 3 together, preferably by welding.

[0055] 3) Lay the second longitudinal steel bar 4 on the snap-on steel truss 3. The second longitudinal steel bar 4 is placed in a one-to-one correspondence with the first longitudinal steel bar 2. Then connect the second longitudinal steel bar 4 to the snap-on steel truss 3 together, preferably by welding, to form the second steel bar layer. The first steel bar layer, the snap-on steel truss 3 and the second steel bar layer together form a space frame with a crisscross support structure.

[0056] 4) Install the first steel mesh 1 on the side of the snap-fit ​​steel truss 3, and use the snap-fit ​​groove 321 in the snap-fit ​​steel truss 3 to snap-fit ​​and connect it with the protruding reinforcing rib 11 on the first steel mesh 1; when used as a floor slab, only the first steel mesh 1 needs to be installed on one side of the snap-fit ​​steel truss 3, but when used as a wall panel, the second steel mesh 10 also needs to be installed on the other side of the snap-fit ​​steel truss 3.

[0057] 5) A filler material is poured onto the surface of the first steel mesh 1 to form a first filler layer 5, constituting an assembly; the filler material includes one or more combinations of concrete, cement mortar, gypsum mortar, or dry-mixed mortar.

[0058] 6) Erect a support frame 9 inside the building and hoist the assembly onto the support frame 9;

[0059] 7) Place a filling box 7 in each cavity 6 formed by the space grid structure; the filling box 7 can also be placed before the assembly is hoisted.

[0060] 8) Pour the second filler layer 8 to fill the gap between the cavity 6 and the filling box 7 and form an upper support plate structure above the filling box 7.

[0061] This embodiment also provides another construction process for steel mesh truss hollow core panels, which includes the following steps:

[0062] 1) Lay the first longitudinal steel bars 2 parallel to each other according to the design spacing to form the first steel bar layer;

[0063] 2) Place the snap-fit ​​steel truss 3 perpendicular to the direction of the first longitudinal steel bar 2 on the first steel bar layer, and then connect the first longitudinal steel bar 2 to the snap-fit ​​steel truss 3 together, preferably by welding.

[0064] 3) Lay the second longitudinal steel bar 4 on the snap-on steel truss 3. The second longitudinal steel bar 4 is placed in a one-to-one correspondence with the first longitudinal steel bar 2. Then connect the second longitudinal steel bar 4 to the snap-on steel truss 3 together, preferably by welding, to form the second steel bar layer. The first steel bar layer, the snap-on steel truss 3 and the second steel bar layer together form a space frame with a crisscross support structure.

[0065] 4) Install the first steel mesh 1 on the side of the snap-fit ​​steel truss. Several protruding reinforcing ribs are arranged parallel to each other on the first steel mesh. The snap-fit ​​groove in the snap-fit ​​steel truss is used to snap and connect with the protruding reinforcing ribs on the first steel mesh. When used as a floor slab, only the first steel mesh 1 needs to be installed on one side of the snap-fit ​​steel truss 3. However, when used as a wall panel, the second steel mesh 10 also needs to be installed on the other side of the snap-fit ​​steel truss 3.

[0066] 5) A filler material is poured onto the surface of the first steel mesh 1 to form a first filler layer; the filler material includes one or more combinations of concrete, cement mortar, gypsum mortar, or dry-mixed mortar;

[0067] 6) Place a filling box 7 in each of the cavities 6 formed by the spatial grid structure on the first filling layer;

[0068] 7) Pour in filler material to fill the gap between the cavity 6 and the filling box 7, and form an upper support plate structure above the filling box 7 to form a second filler layer, thus forming a prefabricated assembly plate.

[0069] 8) Erect a support frame 9 inside the building and hoist the prefabricated assembly panel onto the support frame 9.

[0070] This embodiment describes a steel mesh truss hollow core panel 100 and its construction process. It is a prefabricated hollow floor slab, eliminating the need for formwork at the bottom, reducing formwork investment and waste, and meeting green and energy-saving building requirements. The space frame and the first filling layer can be prefabricated on-site, and the assembled structure is then hoisted directly onto the support frame. Filling boxes are placed in the cavities of the assembly before the second filling layer is poured, significantly shortening the construction period and improving efficiency. This floor slab features lightweight construction, simple fabrication, large span, high load-bearing capacity, strong seismic resistance, no need for formwork at the bottom of the mesh box, and good bonding between the prefabricated base slab and the cast-in-place concrete, meeting the tensile anchorage requirements of the reinforcing steel. This enhances the tensile performance of the lower flange plate, ensuring uniform thickness and strong hanging force. Simultaneously, the top and sides of the filling box have good bonding with the cast-in-place concrete, ensuring the integrity of the filling box and the floor slab. This strengthens the structural load-bearing capacity and decorative hanging requirements of the finished floor slab, reducing the overall cost of prefabricated floor slabs.

[0071] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A construction process for a steel mesh truss hollow core panel, characterized in that: The steel mesh truss hollow core panel includes a first steel mesh, a first longitudinal reinforcement, a snap-fit ​​steel truss, a second longitudinal reinforcement, a first filler layer, a second filler layer, and a second steel mesh. The surface of the first steel mesh is provided with several parallel, spaced-apart protruding reinforcing ribs. The snap-fit ​​steel truss is spaced-apart and parallel, with several of the first and second longitudinal reinforcements perpendicularly arranged on both sides of the snap-fit ​​steel truss, forming a spatial grid with a crisscross structure. One side of the snap-fit ​​steel truss is provided with several snap-fit ​​slots, and the first steel mesh is assembled to one side of the spatial grid through snap-fitting with the protruding reinforcing ribs and snap-fit ​​slots. Several longitudinally and transversely arranged cavities are formed in the spatial grid, and filling boxes are provided in the cavities. The first filler layer covers the first steel mesh and holds the first steel mesh in place. The first steel mesh is enclosed within; the second filler layer is located on the other side of the spatial grid; the second steel mesh and the first steel mesh are respectively located on both sides of the spatial grid, and the second filler layer covers the second steel mesh and encloses it; the snap-fit ​​steel truss is tied, welded, screwed, riveted, or connected to the first longitudinal steel bar and the second longitudinal steel bar by means of connectors; the snap-fit ​​steel truss includes two parallel horizontal steel bars and several snap-fit ​​connecting pieces connecting the two horizontal steel bars, and the snap-fit ​​connecting pieces are arranged in parallel at intervals; the snap-fit ​​connecting piece is a plate structure and has snap-fit ​​grooves at both ends, and the snap-fit ​​grooves protrude from the horizontal steel bar body and snap-fit ​​with the convex reinforcing ribs on the first steel mesh and the second steel mesh; The construction process of the steel mesh truss hollow core panel includes the following steps: 1) Lay the first longitudinal steel bars in parallel according to the design spacing to form the first steel bar layer; 2) Place the snap-fit ​​steel truss perpendicular to the direction of the first longitudinal steel bar on the first steel bar layer, and then connect the first longitudinal steel bar to the snap-fit ​​steel truss; the lower end of the snap-fit ​​steel truss is provided with several snap-fit ​​slots. 3) Lay a second longitudinal steel bar on the snap-fit ​​steel truss to form a second steel bar layer. The second longitudinal steel bar is placed in a one-to-one correspondence with the first longitudinal steel bar. Then, the second longitudinal steel bar is connected to the snap-fit ​​steel truss. The first steel bar layer, the snap-fit ​​steel truss and the second steel bar layer together form a spatial grid with a crisscross support structure. Several cavities are formed in the spatial grid. 4) Install the first steel mesh on the side of the snap-fit ​​steel truss. Several protruding reinforcing ribs are arranged parallel to each other on the first steel mesh. The snap-fit ​​groove in the snap-fit ​​steel truss is used to snap and connect with the protruding reinforcing ribs on the first steel mesh. 5) A filler material is poured onto the surface of the first steel mesh to form a first filler layer, thus constituting an assembly; 6) Erect a support frame inside the building and hoist the assembly onto the support frame; 7) Place a filling box in each of the cavities; 8) Pour filler material to fill the gap between the cavity and the filling box, and form an upper support plate structure above the filling box to form a second filler layer.

2. The construction process of the steel mesh truss hollow core panel as described in claim 1, characterized in that: The gap between the cavity and the filling box is filled with a filler material, which is one or more of the following: concrete, cement mortar, gypsum mortar, or dry-mixed mortar.

3. The construction process of the steel mesh truss hollow core panel as described in claim 1, characterized in that: The first filler layer and the second filler layer are one or more of the following: concrete, cement mortar, gypsum mortar, or dry-mixed mortar.

4. The construction process of the steel mesh truss hollow core panel as described in claim 1, characterized in that: The snap-fit ​​connecting piece is provided in a one-to-one correspondence with the convex reinforcing rib.

5. A construction process for a steel mesh truss hollow core panel, characterized in that: The steel mesh truss hollow core panel includes a first steel mesh, a first longitudinal reinforcement, a snap-fit ​​steel truss, a second longitudinal reinforcement, a first filler layer, a second filler layer, and a second steel mesh. The surface of the first steel mesh is provided with several parallel, spaced-apart protruding reinforcing ribs. The snap-fit ​​steel truss is spaced-apart and parallel, with several of the first and second longitudinal reinforcements perpendicularly arranged on both sides of the snap-fit ​​steel truss, forming a spatial grid with a crisscross structure. One side of the snap-fit ​​steel truss is provided with several snap-fit ​​slots, and the first steel mesh is assembled to one side of the spatial grid through snap-fitting with the protruding reinforcing ribs and snap-fit ​​slots. Several longitudinally and transversely arranged cavities are formed in the spatial grid, and filling boxes are provided in the cavities. The first filler layer covers the first steel mesh and holds the first steel mesh in place. The first steel mesh is enclosed within; the second filler layer is located on the other side of the spatial grid; the second steel mesh and the first steel mesh are respectively located on both sides of the spatial grid, and the second filler layer covers the second steel mesh and encloses it; the snap-fit ​​steel truss is tied, welded, screwed, riveted, or connected to the first longitudinal steel bar and the second longitudinal steel bar by means of connectors; the snap-fit ​​steel truss includes two parallel horizontal steel bars and several snap-fit ​​connecting pieces connecting the two horizontal steel bars, and the snap-fit ​​connecting pieces are arranged in parallel at intervals; the snap-fit ​​connecting piece is a plate structure and has snap-fit ​​grooves at both ends, and the snap-fit ​​grooves protrude from the horizontal steel bar body and snap-fit ​​with the convex reinforcing ribs on the first steel mesh and the second steel mesh; The construction process of the steel mesh truss hollow core panel includes the following steps: 1) Lay the first longitudinal steel bars in parallel according to the design spacing to form the first steel bar layer; 2) Place the snap-fit ​​steel truss perpendicular to the direction of the first longitudinal steel bar on the first steel bar layer, and then connect the first longitudinal steel bar to the snap-fit ​​steel truss; the lower end of the snap-fit ​​steel truss is provided with several snap-fit ​​slots. 3) Lay a second longitudinal steel bar on the snap-fit ​​steel truss to form a second steel bar layer. The second longitudinal steel bar is placed in a one-to-one correspondence with the first longitudinal steel bar. Then, the second longitudinal steel bar is connected to the snap-fit ​​steel truss. The first steel bar layer, the snap-fit ​​steel truss and the second steel bar layer together form a spatial grid with a crisscross support structure. Several cavities are formed in the spatial grid. 4) Install the first steel mesh on the side of the snap-fit ​​steel truss. Several protruding reinforcing ribs are arranged parallel to each other on the first steel mesh. The snap-fit ​​groove in the snap-fit ​​steel truss is used to snap and connect with the protruding reinforcing ribs on the first steel mesh. 5) A filler material is poured onto the surface of the first steel mesh to form a first filler layer; 6) Place a filling box in each of the cavities formed by the spatial grid structure on the first filling layer; 7) Pour in filler material to fill the gap between the cavity and the filling box, and form an upper support plate structure above the filling box to form a second filler layer, thus forming a prefabricated assembly plate. 8) Erect a support frame inside the building, and then use the support frame to fix and support the prefabricated panels after they are hoisted into place.

Images