Mesh belt, net rack, prefabricated part and assembly body of prefabricated part

Abstract

The utility model discloses a net belt, a net rack, a prefabricated part and an assembly body of the prefabricated part, and relates to the technical field of buildings. Wherein the mesh belt comprises two vertical ribs which are parallel to each other; the vertical rib is arranged on the base, the transverse web ribs are arranged on the vertical rib at intervals in the length direction of the vertical rib, the transverse web ribs are fixedly connected with the vertical rib, the top end of the vertical rib is provided with an extending section, and the two ends of each transverse web rib both exceed the vertical rib. According to the net belt, the top ends of the vertical ribs are arranged to be the free ends with the extending sections, when the net belt is used in a net rack and applied to a prefabricated double-spliced superimposed wallboard, the extending sections can be bent and deformed inwards, and the phenomenon that when the wallboard is installed, the extending sections are inserted into an upper-layer wallboard steel bar net rack, and clamping stagnation occurs is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and more specifically to a mesh belt, a space frame, prefabricated components, and an assembly of prefabricated components. Background Technology

[0002] Currently, the vertical component connections in existing prefabricated concrete structure systems include sandwich wall panels and double-layer composite wall panels.

[0003] Among them, sandwich wall panels usually adopt the steel sleeve grouting anchoring connection technology. However, sandwich wall panels have problems such as grout leakage and jamming, poor quality control due to factors such as maintenance and weather, inability to detect defects, high cost and low efficiency.

[0004] Double-layer composite wall panels are precast concrete components consisting of a steel truss as vertical reinforcement, connected by horizontal reinforcement to form a steel mesh. Approximately six centimeters of concrete is poured on both sides to create a hollow cavity. The connection method involves inserting connecting steel bars into the upper cavity of the double-layer composite panel, followed by pouring concrete into the cavity. The upper double-layer composite panel is then installed, with the connecting steel bars of the lower panel inserted into the cavity of the upper panel. Concrete is then poured into the cavity of the upper panel, achieving vertical connection of the precast double-layer composite wall panel components. However, a problem exists with double-layer composite wall panels: the connection points of the steel bars are not concentric with the positions of the load-bearing steel bars, with the connecting bars positioned close to the center of the component, reducing the load-bearing capacity of the steel reinforcement. Compared to cast-in-place steel reinforcement connections, this method reduces the connection quality and the scientific and rational aspects of structural mechanics (the farther the steel reinforcement is from the center of the component, the better the stress distribution, provided the protective layer requirements are met); the production process of steel mesh frames has a low degree of automation, steel trusses require manual binding of transverse steel reinforcement, and secondary installation of connecting steel reinforcement is required during on-site construction. This results in low efficiency and high cost; the steel mesh is heavy, leading to high transportation and hoisting costs, and poor workability.

[0005] In addition, the existing connection methods for longitudinal steel bars in prefabricated wall panels of prefabricated buildings include: steel bar sleeve grouting connection method and post-insertion steel bar anchoring connection method for prefabricated double-layer composite wall panels.

[0006] The rebar sleeve grouting connection method involves inserting the pre-reserved connecting bars at one end of a precast wall panel / column into the pre-embedded connecting sleeve of another precast wall panel, and then injecting grout into the grouting hole of the sleeve. The grout anchors and connects the rebar and the sleeve together, thus achieving the connection. However, the rebar sleeve grouting connection method has problems such as grout leakage, jamming, inability to install, high construction difficulty, high cost, low efficiency, and uncontrollable quality.

[0007] The post-installation anchoring method for precast double-panel composite wall panels involves inserting connecting steel bars into the gap between the first precast double-panel after installation and tying them in place. Then, the second double-panel is installed, with the connecting bars inserted into the gap of the upper double-panel. Concrete is then poured into the double-panel, and the connecting bars connect the two panels. However, this method suffers from several drawbacks: it requires secondary tying of the connecting bars, resulting in low efficiency, high cost, and an unreasonable distribution of the connecting bars under stress (the connecting bars are positioned close to the center; due to the limitations of the composite panel manufacturing process, the connecting bars cannot be placed at the far end of the wall panel's center and cannot be coaxial with the vertical reinforcing bars, affecting the structural stress).

[0008] In other words, existing precast wall panels have the following problems during assembly: jamming caused by deformation and displacement of the reinforcing bars in the precast frame, resulting in adjacent components being unable to be installed; the axial position of precast components being affected by the jamming of the reinforcing bars, causing axial displacement that cannot be adjusted; joint problems, with joints easily forming at the bottom of vertical components, leading to rainwater leakage; grout leakage, as sleeve grouting is a concealed operation, making it impossible to visually determine whether the grouting is complete; thinning of the protective layer, with increased sleeve diameter and deformation causing the protective layer to become too thin and fall off, affecting durability; dense grouting pipes damaging the integrity of the concrete structure; and the need for specialized hoisting parts, connecting accessories, reinforcing bar sleeves, grouting materials, connecting reinforcing bars, external protective panels, and secondary pouring. Utility Model Content

[0009] In view of this, the present invention provides a mesh belt, a mesh frame, prefabricated components, and an assembly of prefabricated components, aiming to solve one of the problems in the above-mentioned background art, and to prevent the upper connecting bars from getting stuck when inserted into the upper wall panel steel mesh frame during wall panel installation.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] The present invention provides a mesh belt, comprising:

[0012] Two parallel vertical ribs;

[0013] The transverse web reinforcement is provided in multiples, and the multiple transverse web reinforcements are arranged at intervals on the vertical reinforcement along the length direction of the vertical reinforcement. The transverse web reinforcements are fixedly connected to the vertical reinforcements. The top end of the vertical reinforcement has an extension section, and both ends of the transverse web reinforcements extend beyond the vertical reinforcement.

[0014] According to the mesh belt provided by this utility model, each of the extension sections is provided with a hook at its end that bends toward the other vertical rib, and the hooks on the two vertical ribs are spaced apart or staggered with each other.

[0015] According to the mesh belt provided by this utility model, the lower ends of the two vertical ribs are bent inward, and the bends of the two vertical ribs are connected to each other to form a closed loop.

[0016] According to the mesh belt provided by this utility model, the portions of the transverse web ribs that extend beyond the vertical ribs are provided with connecting hooks.

[0017] The mesh belt provided by this utility model also includes a diagonal support web, which is disposed between two vertical bars and connected to the vertical bars.

[0018] According to the mesh belt provided by this utility model, the connecting hook is a composite positioning hook.

[0019] The beneficial effects of the above-mentioned technical solution for the mesh belt provided by this utility model are as follows: the top of the vertical bar is set as a free end with an extension section. When the mesh belt is used in the space frame and applied in the prefabricated double-layer composite wall panel, the extension section can be bent and deformed inward to prevent the extension section from getting stuck when it is inserted into the steel mesh frame of the upper wall panel during wall panel installation.

[0020] This utility model also provides a mesh frame, including multiple mesh belts as described above, with the multiple mesh belts spaced apart, and the vertical ribs on both sides of all the mesh belts located in two different planes respectively;

[0021] It also includes horizontal ribs, and each side of the plurality of mesh belts is provided with a plurality of horizontal ribs, the horizontal ribs being used to connect the vertical ribs on the same side of all the mesh belts together.

[0022] According to the grid structure provided by this utility model, both ends of the horizontal rib extend beyond the first and last ends of all the mesh belts, and the portions of the horizontal ribs extending beyond the first and last ends of the mesh belts are bent and connected to form a closed shape.

[0023] Alternatively, the portions of the horizontal reinforcing bars that extend beyond the mesh belt at both ends may be connected by connecting reinforcing bars to form a closed shape.

[0024] The mesh frame provided by this utility model also includes diagonal support ribs, which are disposed between adjacent mesh belts and are used to connect the vertical ribs between adjacent mesh belts.

[0025] According to the space frame provided by this utility model, the diagonal support ribs are also provided between adjacent horizontal ribs.

[0026] The space frame provided by this utility model also includes a lifting ring, which has a closed end and the closed end of the lifting ring faces the extension section of the mesh belt. The two ends of the lifting ring are respectively connected to the vertical ribs, horizontal ribs or transverse web ribs on both sides of the same mesh belt.

[0027] The mesh frame provided by this utility model also includes a tensile mesh, and the tensile mesh is provided on the outer side of the vertical ribs on the same side of all the mesh belts. The tensile mesh is connected to the transverse web ribs in the mesh belts.

[0028] The beneficial effects of the above-mentioned technical solution on the space frame provided by this utility model are as follows: the space frame is formed by multiple mesh belts, which constitutes a double-layer bidirectional reinforcing steel space frame structure. The space frame is equipped with horizontal bars and internal diagonal support bars, which increases the rigidity and strength of the space frame. When the two sides of the space frame are connected to the template to form a prefabricated double-layer composite wall panel, the extension section can be bent and deformed inward to prevent the extension section from getting stuck when it is inserted into the steel space frame of the upper wall panel during wall panel installation.

[0029] A first example of a prefabricated component: This utility model provides a prefabricated component, including the aforementioned space frame and templates. Templates are provided on both sides of the space frame, and the templates are connected to the portions of the transverse web reinforcements that extend beyond the vertical reinforcements.

[0030] According to the prefabricated component provided in the first example of this utility model, the template is further fixedly connected or detachably connected to the transverse web reinforcement.

[0031] According to the prefabricated component provided in the first example of this utility model, it further includes a connector, through which the template and the transverse web reinforcement are connected.

[0032] According to the prefabricated component provided in the first example of this utility model, it further includes an insulation board, which is sandwiched between the template and the grid frame.

[0033] According to the prefabricated component provided in the first example of this utility model, the template is further one of a concrete slab, a wooden board, a steel plate or a plastic board.

[0034] According to the precast component provided in the first example of this utility model, when the template is a concrete slab, the interior of the concrete slab is provided with steel mesh and / or mesh fabric.

[0035] According to the precast component provided in the first example of this utility model, the template is further provided with a plurality of grout outlet holes.

[0036] According to the prefabricated component provided in the first example of this utility model, the template is further provided with embedded conduits or through holes inside.

[0037] According to the prefabricated component provided in the first example of this utility model, bolt mounting holes are further provided on the templates on both sides of the space frame.

[0038] The beneficial effects of the precast components provided by this utility model using the above technical solution are: improving the integrity of the connection between the space frame and the template; the top of the vertical bar of the space frame is set as a free end with an extension section, which is directly inserted into the steel mesh of the upper wall panel; and concrete is poured into the cavity between the templates on both sides to form the overall connection structure of the wall panel. This invention addresses the problems of existing rebar sleeve grouting connection technology, which requires on-site sleeve grouting and suffers from leakage, jamming, poor quality control, high cost, and low efficiency. It also solves the problems of existing on-site rebar insertion connection procedures for double-layer composite slab wall panels, which suffer from non-coaxial rebar connections, poor force transmission, unreasonable placement, low efficiency, and high cost. The precast components provided by this invention have fewer on-site construction steps, are convenient and quick to install, and are highly efficient. They are also low-cost, economical, and the scientifically reasonable rebar placement ensures good coaxiality with the wall panel's vertical reinforcement, improving the quality control and seismic resistance of the structural connection. They are convenient for transportation and hoisting, and feature automated welding, resulting in high efficiency and controllable quality. Furthermore, it solves the problems of low efficiency and high cost caused by the large weight and high tonnage requirements of existing solid concrete wall panels and double-layer composite slab components, which limit the processing size of the components.

[0039] A second example of a precast component: This utility model provides another precast component, including the aforementioned space frame and a template. The template is provided on one side of the space frame and is connected to the portion of the transverse web reinforcement that extends beyond the vertical reinforcement.

[0040] According to the prefabricated component provided in the second example of this utility model, the open end of the vertical rib is also a closed annular shape.

[0041] The beneficial effects of using the above technical solution for prefabricated components are: forming a floor deck structure, which facilitates construction. For specific beneficial effects, please refer to the beneficial effects of the above space frame, which will not be repeated here.

[0042] A first example of a prefabricated component assembly: This utility model provides a prefabricated component assembly, which is a single-layer structure. The assembly includes wall panels and floor slabs. The wall panels are prefabricated components as described in the first example above, and the floor slabs are prefabricated components as described in the second example above. The length of the space frame in both the wall panels and the floor slabs is greater than the length of the template. At least two wall panels are spaced apart. The floor slabs are located on top of the wall panels, and the two ends of the templates in the floor slabs overlap the templates on the inner side of the wall panels.

[0043] According to a first example of the prefabricated component assembly provided by this utility model, when the number of wall panels in the same direction is greater than two, the space frame portions of adjacent floor slabs that extend beyond the template overlap each other.

[0044] The beneficial effects of the precast component assembly provided by this utility model using the above-mentioned technical solution are as follows: it solves the problem of not being able to observe the position when pouring concrete for double-layer composite slabs; it solves the problem of high cost due to leakage and jamming during grouting connection of steel sleeves, allowing direct concrete pouring without a grouting process; it solves the problem of inconvenient hoisting due to its heavy weight, as its weight is equivalent to one-fifth of that of precast solid concrete wall panels; the space frame has high rigidity and light weight, effectively solving the problem of needing special cranes or tower cranes for hoisting. It is low-cost and economical: it reduces on-site operation procedures and workload, lowers material and labor costs, improves efficiency, shortens the construction period, and enhances economic efficiency.

[0045] A second example of a prefabricated component assembly: This utility model provides another prefabricated component assembly, which is a multi-layer structure. The assembly includes wall panels and floor slabs. The wall panels use the prefabricated components described in the first example above, and the floor slabs also use the prefabricated components described in the first example above. The length of the space frame in both the wall panels and the floor slabs is greater than the length of the template. At least two wall panels are spaced apart. The floor slabs are located on top of the wall panels, and the two ends of the templates in the floor slabs overlap the templates on the inner side of the wall panels. Multiple wall panels are connected sequentially along the height direction, and the portion of the space frame at the top of the lower wall panel that extends beyond its top floor slab extends into the interior of the upper wall panel.

[0046] According to a second example of the prefabricated component assembly provided by this utility model, when the number of wall panels in the same direction is greater than two, the space frame portions of adjacent floor slabs that extend beyond the template overlap each other.

[0047] The beneficial effects of the precast component assembly provided by this utility model using the above-mentioned technical solution are as follows: it solves the problem of not being able to observe the position when pouring concrete for double-layer composite slabs; it solves the problem of high cost due to leakage and jamming during grouting connection of steel sleeves, allowing direct concrete pouring without a grouting process; it solves the problem of inconvenient hoisting due to its heavy weight, as its weight is equivalent to one-fifth of that of precast solid concrete wall panels; the space frame has high rigidity and light weight, effectively solving the problem of needing special cranes or tower cranes for hoisting. It is low-cost and economical: it reduces on-site operation procedures and workload, lowers material and labor costs, improves efficiency, shortens the construction period, and enhances economic efficiency. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0049] Figure 1 A schematic diagram of the mesh belt provided by this utility model;

[0050] Figure 2 A schematic diagram of a mesh belt with diagonal support ribs provided in this utility model;

[0051] Figure 3 A schematic diagram of the structure of the mesh belt provided by this utility model, showing that the connecting hook is a composite positioning hook;

[0052] Figure 4 A schematic diagram of a mesh belt with lifting rings provided in this utility model;

[0053] Figure 5 A schematic diagram of the structure of the space frame provided by this utility model;

[0054] Figure 6 A schematic diagram of a space frame with diagonal bracing ribs provided in this utility model;

[0055] Figure 7 A schematic diagram of a composite positioning hook in a space frame provided by this utility model;

[0056] Figure 8 A schematic diagram of a space frame with lifting rings installed in this utility model;

[0057] Figure 9 A schematic diagram of the structure for installing tensile mesh in a space frame provided by this utility model;

[0058] Figure 10 Provided by this utility model Figure 6 Side view;

[0059] Figure 11 Provided by this utility model Figure 6 Top view;

[0060] Figure 12 A schematic diagram of the structure of a first example of a prefabricated component provided by this utility model;

[0061] Figure 13 Another structural schematic diagram of the first example of the prefabricated component provided by this utility model;

[0062] Figure 14 A schematic diagram of the structure in the first example of the prefabricated component provided by this utility model, showing the connection between the template and the space frame via connectors;

[0063] Figure 15 A schematic diagram of a prefabricated component provided by this utility model, which includes an insulation board.

[0064] Figure 16 A schematic diagram of the structure of a second example of a prefabricated component provided by this utility model;

[0065] Figure 17-28 A step diagram illustrating the construction process of a first example of an assembly of prefabricated components provided by this utility model;

[0066] Figures 29-30 A step diagram illustrating the construction process of a second example of constructing a prefabricated component assembly based on a first example of a prefabricated component assembly, provided by this utility model.

[0067] Figure 31 A schematic diagram of the wall panel provided by this utility model, which is supported on both sides by diagonal support rods;

[0068] Figure 32 A schematic diagram of the wall panel provided by this utility model, which is supported on one side by an inclined support rod.

[0069] In the diagram: 100 is the mesh belt; 200 is the space frame; 300 is the wall panel; 1 is the vertical reinforcement; 2 is the horizontal web reinforcement; 3 is the hook; 4 is the connecting hook; 5 is the composite positioning hook; 6 is the diagonal support web reinforcement; 7 is the lifting ring; 8 is the horizontal reinforcement; 9 is the template; 10 is the tensile mesh; 11 is the connector; 12 is the insulation board; 13 is the steel mesh; 14 is the mesh cloth; 15 is the embedded part; 16 is the diagonal support rod. Detailed Implementation

[0070] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0071] See Figure 1 This utility model embodiment discloses a mesh belt 100, including: vertical ribs 1 and transverse web ribs 2.

[0072] Two vertical reinforcing bars 1 are provided, parallel to each other. Multiple transverse web reinforcing bars 2 are provided, spaced apart along the length of the vertical reinforcing bars 1, and fixedly connected to the vertical reinforcing bars 1. The top of the vertical reinforcing bar 1 has an extension section, and both ends of the transverse web reinforcing bars 2 extend beyond the vertical reinforcing bar 1. The transverse web reinforcing bars 2 and the vertical reinforcing bars 1 are fixedly connected by welding. In some embodiments, the vertical reinforcing bar 1 is divided into an extension section, a middle section, and an anchorage connection section from one end of the extension section to the other. Specifically, the transverse web reinforcing bars 2 are provided in the middle section of the vertical reinforcing bar 1, while the extension section and the anchorage connection section are used to provide the connection length. When the mesh belt 100 is used in the space frame 200 and applied to the precast double-layer composite wall panel, the middle section is used to connect the template 9 to ensure that the extension section extends beyond the template 9 so that the extension section can bend and deform inward during use, preventing jamming when the extension section is inserted into the upper wall panel steel mesh 200 during wall panel installation; while the anchoring connection section is used to fix the connection with the foundation to improve the connection strength of the precast double-layer composite wall panel in the vertical height.

[0073] In a further embodiment, each extension segment has a hook 3 at its end that bends towards another vertical rib 1, and the hooks 3 on the two vertical ribs 1 are spaced apart or staggered. In this embodiment, preferably, the two hooks 3 are spaced apart, and the hooks 3 are specifically arc-shaped, so that the top of the hook 3 transitions through an arc segment. The arc segment transition allows the extension segment to bend and deform inward during use, preventing jamming when the extension segment is inserted into the upper wall panel steel mesh 200 during wall panel installation.

[0074] In a further embodiment, the lower ends of both vertical ribs 1 are bent inwards, and the bends of the two vertical ribs 1 are connected to form a closed loop. The closed loop structure can ensure the strength of the anchorage connection section while shortening the anchorage length.

[0075] In a further embodiment, connecting hooks 4 are provided at both ends of the transverse web reinforcement 2 that extend beyond the vertical reinforcement 1. The connecting hooks 4 are provided so that when the concrete formwork 9 is connected to the end of the transverse web reinforcement 2, the connecting hooks 4 are prefabricated in the concrete formwork 9, thereby improving the connection strength between the mesh belt 100 and the concrete formwork 9.

[0076] See Figure 2 In a further embodiment, the mesh belt 100 also includes diagonal support reinforcement 6, which is disposed between two vertical reinforcements 1 and connected to the vertical reinforcements 1. The diagonal support reinforcement 6 increases the rigidity of the mesh belt 100.

[0077] In a further embodiment, the density of the transverse web reinforcement 2 in the middle section is greater at both ends than in the middle section. This increases the strength of both ends of the mesh belt 100, ensuring the structural strength of both ends when used in the space frame 200 and prefabricated components.

[0078] See Figure 3 In a further embodiment, preferably, the connecting hook 4 is a composite positioning hook 5. When connecting the concrete formwork 9 to the end of the transverse web reinforcement 2, by prefabricating the composite positioning hook 5 in the concrete formwork 9, the connection area between the transverse web reinforcement 2 and the concrete formwork 9 is increased, thereby improving the connection strength between the mesh belt 100 and the concrete formwork 9. Since the composite positioning hook 5 has an arc-shaped hook structure, a conduit or other structure can also be set inside the composite positioning hook 5 to position the conduit, thereby facilitating the pre-embedding of the conduit in a preset position in the concrete formwork 9.

[0079] See Figure 4 In the above embodiment, a lifting ring 7 can be set between the two vertical ribs 1. The lifting ring 7 has a U-shaped structure, and the closed end of the lifting ring 7 faces the direction of the extension section. The setting of the lifting ring 7 facilitates the lifting of the mesh belt 100.

[0080] See Figure 5-7 10. This utility model also provides a mesh frame 200, which includes multiple mesh belts 100 as described above. The multiple mesh belts 100 are arranged at intervals, and the vertical ribs 1 on both sides of all mesh belts 100 are located in two different planes.

[0081] It also includes horizontal ribs 8. Each side of the multiple mesh belts 100 is provided with multiple horizontal ribs 8. The horizontal ribs 8 are used to connect the vertical ribs 1 on the same side of all the mesh belts 100 together.

[0082] Among them, multiple mesh strips 100 are welded or tied together by horizontal reinforcing bars 8 to form an integrated space frame 200 structure, which constitutes a double-layer bidirectional steel mesh frame 200 structure. The template 9 is connected by the ends of the transverse web bars 2 in the space frame 200, thereby forming a prefabricated double-layer composite wall panel.

[0083] See Figure 11 According to the mesh frame 200 provided by this utility model, both ends of the horizontal rib 8 extend beyond the first and last ends of all mesh belts 100, and the portions of the horizontal rib 8 extending beyond the first and last ends of the mesh belts 100 are bent and connected to form a closed shape.

[0084] Alternatively, the portion of the horizontal reinforcement 8 that extends beyond the mesh belt 100 at both ends can be connected with connecting reinforcements to form a closed shape.

[0085] By forming closed ends of the horizontal ribs 8, the connection strength between the horizontal ribs 8 and the connection strength between the horizontal ribs 8 and the mesh belt 100 can be improved, thereby enhancing the rigidity of the mesh frame 200.

[0086] The space frame 200 provided by this utility model also includes diagonal support ribs (not shown in the figure). The diagonal support ribs are arranged between adjacent mesh belts 100 and are used to connect the vertical ribs 1 between adjacent mesh belts 100. By providing diagonal support ribs, the vertical rigidity of the space frame 200 can be increased.

[0087] According to the space frame 200 provided by this utility model, diagonal support ribs are also provided between adjacent horizontal ribs 8. The diagonal support ribs between the horizontal ribs 8 and between the vertical ribs 1 can further improve the rigidity and strength of the space frame 200 and prevent the space frame 200 from deforming during transportation or hoisting.

[0088] See Figure 8 The space frame 200 provided by this utility model also includes a lifting ring 7. The lifting ring 7 has a closed end, and the closed end of the lifting ring 7 faces the extension of the mesh belt 100. The two ends of the lifting ring 7 are respectively connected to the vertical reinforcement 1, horizontal reinforcement 8, or transverse web reinforcement 2 on both sides of the same mesh belt 100. The lifting ring 7 facilitates the lifting operation of the space frame 200 and the lifting operation of the precast double-layer composite wall panel formed by the combination of the space frame 200 and the concrete formwork 9. In some other embodiments, the lifting ring 7 can also be directly welded between the two vertical reinforcement 1 during the processing of the mesh belt 100.

[0089] See Figure 9 The space frame 200 provided by this utility model also includes a tensile mesh 10. Tensile mesh 10 is provided on the outer side of the vertical reinforcement 1 on the same side of all the mesh belts 100. The tensile mesh 10 is connected to the transverse web reinforcement 2 in the mesh belts 100. The connecting hooks 4 at the ends of the transverse web reinforcement 2 hook onto the outer reinforcement of the tensile mesh 10, increasing the tensile force of the cast-in-place concrete formwork 9 and preventing the formwork 9 from bulging and deforming.

[0090] See Figure 12 and 13 The first example of a prefabricated component is provided by the present invention, which includes the above-mentioned space frame 200 and a template 9. Templates 9 are provided on both sides of the space frame 200, and the templates 9 are connected to the portion of the transverse web reinforcement 2 that extends beyond the vertical reinforcement 1.

[0091] It should be noted that by setting templates 9 at the ends of the transverse web reinforcement 2 on both sides of the space frame 200, prefabricated double-layer composite wall panels are formed, which improves the integrity of the prefabricated double-layer composite wall panels. The top of the vertical reinforcement 1 of the space frame 200 is set as a free end with an extension section so that the prefabricated double-layer composite wall panels can be directly inserted into the steel mesh 200 of the upper wall panel. Concrete is poured into the cavity between the templates 9 on both sides to form the overall connection structure of the wall panels. This invention addresses the problems of existing rebar sleeve grouting connection technology, which requires on-site sleeve grouting and suffers from leakage, jamming, poor quality control, high cost, and low efficiency. It also solves the problems of existing on-site rebar insertion connection procedures for double-layer composite slab wall panels, which suffer from non-coaxial rebar connections, poor force transmission, unreasonable placement, low efficiency, and high cost. The precast components provided by this invention have fewer on-site construction steps, are convenient and quick to install, and are highly efficient. They are also low-cost, economical, and the scientifically reasonable rebar placement ensures good coaxiality with the wall panel's vertical reinforcement, improving the quality control and seismic resistance of the structural connection. They are convenient for transportation and hoisting, and feature automated welding, resulting in high efficiency and controllable quality. Furthermore, it solves the problems of low efficiency and high cost caused by the large weight and high tonnage requirements of existing solid concrete wall panels and double-layer composite slab components, which limit the processing size of the components.

[0092] According to the precast component provided in the first example of this utility model, the template 9 is further fixedly connected or detachably connected to the transverse web reinforcement 2. By using a fixed or detachable connection between the template 9 and the transverse web reinforcement 2, precast components with no-removal templates and precast components with detachable templates are formed. The precast component with no-removal templates is one where the template 9 is not removed after concrete pouring; the template 9 in the precast component with no-removal templates can take the form of both precast templates and cast-in-place templates. The precast component with detachable templates is one where the template 9 can be removed and reused after concrete pouring; it is called a detachable template.

[0093] See Figure 14 According to the prefabricated component provided in the first example of this utility model, it further includes a connector, and the template 9 and the transverse web reinforcement 2 are connected by the connector. In this embodiment, the connector can be a Z-shaped steel or a C-shaped steel. The Z-shaped steel or C-shaped steel is welded to the transverse web reinforcement 2 or connected by a clamp. Alternatively, the template 9 can be directly connected to the Z-shaped steel or C-shaped steel by a self-tapping screw to form a prefabricated double-layer composite wall panel. Or, when the end of the transverse web reinforcement 2 is not provided with a connecting hook 4, a threaded section is directly provided at the end of the transverse web reinforcement 2. At the same time, a limiting hole is provided on the template 9. The limiting hole can accommodate the nut and play an axial limiting role for the nut. The template 9 is installed at the end of the transverse web reinforcement 2 by using the nut, thereby realizing the installation of the template 9 at the end of the transverse web reinforcement 2 in the space frame 200 to form a prefabricated double-layer composite wall panel.

[0094] See Figure 15According to the prefabricated component provided in the first example of this utility model, it further includes an insulation board 12, which is sandwiched between the template 9 and the space frame 200. Preferably, the insulation board 12 is connected to the space frame 200 to form an integral structure using insulation nails or connectors 11. In this embodiment, specifically, the connectors 11 can be structures such as through-wall bolts or self-tapping screws. The insulation board 12 is provided on one side of the prefabricated component, that is, the insulation board 12 is provided on the outer side of the prefabricated double-layer composite wall panel.

[0095] According to the precast component provided in the first example of this utility model, the template 9 is further made of a concrete slab, a wooden board, a steel plate, or a plastic board. When the template 9 is a concrete slab, preferably, the two ends of the transverse web reinforcement 2 are provided with connecting hooks 4. The concrete slab is formed by pouring high-strength mortar material, which is composed of cement or gypsum and other cementing materials. The mortar wraps around the connecting hooks 4 at the ends of the transverse web reinforcement 2 to improve the connection strength between the space frame 200 and the concrete slab.

[0096] According to the precast component provided in the first example of this utility model, when the template 9 is a concrete slab, a steel mesh 13 and / or a mesh fabric 14 are provided inside the concrete slab. When the steel mesh 13 and / or the mesh fabric 14 are provided inside the concrete slab, the connecting hooks 4 at the ends of the transverse web reinforcement 2 are used to hook the steel mesh 13 and / or the mesh fabric 14. The provision of the steel mesh 13 and / or the mesh fabric 14 can improve the strength of the concrete slab and at the same time prevent the concrete slab from cracking.

[0097] According to the precast component provided in the first example of this utility model, the template 9 is further provided with multiple grout outlet holes (not shown in the figure). By providing grout outlet holes, when pouring concrete in the cavity between the two templates 9, the position of the concrete and the grout outlet situation can be observed, ensuring the quality of concrete pouring.

[0098] According to the prefabricated component provided in the first example of this utility model, the template 9 is further provided with pre-embedded conduits or through holes inside. When conduits or through holes are provided inside the template 9, the template 9 is a non-removable structure, realizing the separation of conduits from prefabricated components, which facilitates the installation of conduits; the replacement or modification process of conduits when their service life expires does not require chiseling the main structure, and the construction is non-destructive to the main structure, which improves the seismic resistance and durability of the main structure.

[0099] According to the prefabricated component provided in the first example of this utility model, bolt mounting holes are further provided on the templates 9 on both sides of the space frame 200. Preferably, when the template 9 is a non-removable template, bolt mounting holes are provided on the template 9. The bolt mounting holes are used to install the diagonal support rods 16. By installing the diagonal support rods 16 on both sides or one side of the template 9, when the prefabricated component is used as a prefabricated double-layer composite wall panel, the verticality of the wall panel can be adjusted during installation by means of the diagonal support rods 16.

[0100] In the above embodiment, the template 9 does not enclose the reinforcing bars in the middle of the steel mesh 200; it only serves as the template 9. The concrete pouring process does not affect the mechanical properties of the reinforced concrete structure or its load-bearing capacity, achieving the same effect as cast-in-place concrete. Furthermore, due to the structure of the mesh 200 and the automated welding process, the mesh 200 will not experience the same steel bar displacement as with manually tied reinforcing bars, which would cause uneven steel bar distribution, affecting structural load-bearing capacity and preventing cracking.

[0101] See Figure 16 A second example of a precast component: This utility model provides another precast component, including the aforementioned space frame 200, and also including a template 9. The template 9 is provided on one side of the space frame 200, and the template 9 is connected to the portion of the transverse web reinforcement 2 that extends beyond the vertical reinforcement 1.

[0102] In this embodiment, a template 9 is provided on one side of the space frame 200, and the precast component formed is used as a floor deck. Concrete is poured on the floor deck to form a floor slab, and the template 9 provides support for the pouring of concrete.

[0103] According to the precast component provided in the second example of this utility model, the open end of the vertical rib 1 is also a closed ring shape. By setting both ends of the mesh belt 100 in the space frame 200 as closed ring structures, when adjacent precast components are used as floor slabs, the structures at the ends of the vertical rib 1 can overlap each other, or they can be connected by binding or welding, thereby improving the strength between adjacent floor slabs; in other embodiments, both ends of the mesh belt 100 in the precast component can also be set as open structures, as long as the length of the mesh belt 100 is greater than the length of the template 9, so that when the precast component is used as a floor slab, the mesh belts 100 at both ends of the precast component can overlap each other and ensure that the two can be connected to each other.

[0104] See Figure 27 and 28The present invention provides a prefabricated component assembly, which is a single-layer structure. The assembly includes a wall panel 300 and a floor slab 400. The wall panel 300 adopts the prefabricated component in the first example above, and the floor slab 400 adopts the prefabricated component in the second example above. The length of the space frame 200 in both the wall panel 300 and the floor slab 400 is greater than the length of the template 9. There are at least two wall panels 300 spaced apart. The floor slab 400 is set on top of the wall panel 300, and the two ends of the template 9 in the floor slab 400 are respectively overlapped on the template 9 on the inner side of the wall panel 300.

[0105] It should be noted that wall panel 300 is used as the base wall panel (see...). Figure 12 ) and structural wall panels (see Figure 13 Or 14) When used, the structure of wall panel 300 is different. Specifically, when wall panel 300 is used as a foundation wall panel, the bottom space frame 200 structure of wall panel 300 is exposed, that is, the anchoring connection section of mesh belt 100 is exposed. A foundation pit is set on the ground, and a cushion structure made of poured concrete is set at the bottom of the foundation pit. Positioning angle irons are installed on the cushion layer by expansion bolts or nails. Two positioning angle irons are set, and the two positioning angle irons are set at intervals. The distance between the two positioning angle irons is equal to the distance between the exposed space frame at the bottom of wall panel 300. The widths of the wall panels 300 and 300 are equal. The space frame 200 at the bottom of the wall panel 300 extends between the two positioning angle irons. The vertical ribs 1 in the wall panel 300 are welded to the positioning angle irons. After the wall panel 300 is fixed to the positioning angle irons, on the padding layers on both sides of the wall panel 300, one side is fixed with an insulation board using positioning angle irons, and the other side is fixed with a support plate using positioning angle irons. This ensures that the tops of both the insulation board and the support plate are flush with or slightly higher than the lower surface of the template 9 in the wall panel 300. The bottom of the wall panel 300... The horizontal reinforcing bars 8 in the exposed space frame 200 are connected to the insulation board and the support plate via connecting steel bars to fix the wall panel 300. Then, backfill soil is poured on the outer side of the insulation board and support plate away from the wall panel 300, with the backfill soil height equal to the height of the insulation board and support plate. Finally, concrete is poured on top of the cushion layer between the insulation board and support plate, with the height of the poured concrete flush with the upper surface of the insulation board and support plate, meaning the concrete can reach or exceed the bottom of the formwork 9 in the wall panel 300. After reaching a certain height, backfill soil into the foundation pit. The backfill height is then level with the top of the formwork 9 in wall panel 300, ensuring the extension of the top of wall panel 300 is exposed above ground. This completes the foundation wall panel construction. In this embodiment, the foundation wall panel is referred to as embedded part 15. Embedded part 15 is used to install the structural wall panel. In this embodiment, the specific structure of the structural wall panel is such that the bottom of the formwork 9 in wall panel 300 is level with the bottom of the space frame 200, and the extension of the top of embedded part 15 extends into the structural wall panel (see...). Figure 26After the two structural wall panels are installed, the floor slab 400 is installed on the extension section at the top of the two structural wall panels. The two ends of the formwork 9 in the floor slab 400 overlap the formwork 9 on the inner side of the wall panel 300. Then, concrete is poured inside the wall panel 300 and above the floor slab 400. The concrete at the top of the floor slab 400 completely covers the space frame 200 on the formwork 9, forming an assembly of prefabricated components for a single-story room.

[0106] According to a first example of the prefabricated component assembly provided by this utility model, specifically, when the number of wall panels 300 in the same direction is greater than two, the portion of the space frame 200 extending beyond the template 9 in adjacent floor slabs 400 overlaps with each other. By setting the number of structural wall panels to be greater than two, a row of assemblies can be formed. In this embodiment, the length of the mesh belt 100 in the floor slab 400 is greater than the length of the floor slab 400, so that the ends of the mesh belt 100 between two adjacent floor slabs 400 overlap and connect with each other to improve the strength of the assembly.

[0107] The precast component assembly provided by this utility model solves the problem of not being able to observe the position during the concrete pouring of double-layer composite slabs; it also solves the problem of high costs due to grout leakage and jamming during rebar sleeve grouting connections, allowing direct concrete pouring without a grouting process; and it solves the problem of inconvenient hoisting due to its heavy weight, as its weight is only one-fifth that of precast solid concrete wall panels. The 200mm space frame is rigid and lightweight, effectively eliminating the need for specialized cranes or tower cranes for hoisting. It is low-cost and economical: reducing on-site work procedures and workload, lowering material and labor costs, improving efficiency, shortening the construction period, and enhancing economic benefits.

[0108] See Figure 17-28 This utility model further explains and illustrates a first example of a prefabricated component assembly through a construction method for the assembly of prefabricated components. The specific steps include:

[0109] S10, Installation of wall panel 300

[0110] Multiple wall panels 300 are spaced apart, the bottom of the wall panels 300 is fixed to the embedded parts 15 on the ground, and the wall panels 300 are supported by the diagonal support rods 16.

[0111] S20, installation of 400mm floor slab

[0112] The floor slab 400 is horizontally hoisted onto the top of the wall panel 300, with the side of the floor slab 400 containing the template 9 facing downwards, and the two ends of the template 9 in the floor slab 400 are respectively overlapped onto the top of the template 9 in the wall panel 300.

[0113] S30, pouring concrete

[0114] Concrete is poured between the two formwork 9 in the wall panel 300 and on top of the floor slab 400.

[0115] Specifically, the construction method of the prefabricated component assembly in this embodiment can be found in the construction process of the assembly in the first example of the prefabricated component assembly. The construction method of the assembly will not be described in detail here.

[0116] It should be noted that diagonal support rods 16 are required for support during the installation of wall panel 300 as a structural wall panel. Specifically, diagonal support rods 16 are installed on wall panel 300. When wall panel 300 is used as an intermediate wall panel, diagonal support rods 16 are installed on both sides of wall panel 300. For details, please refer to [link / reference needed]. Figure 31 When wall panel 300 is used as a side wall panel, a diagonal support rod 16 is installed on one side of wall panel 300. (See details in [link to relevant documentation]). Figure 32A pad is provided between the through-wall bolt and the wall panel 300. Preferably, the pad is a keel or steel pipe to reinforce the wall. The function of the pad is to fix the diagonal support rod 16 and to reinforce the non-removable formwork 9 to prevent bulging. A swivel bolt is hinged to the pad, and a pad is also fixed on the ground. The swivel bolt on the wall panel 300 and the swivel bolt on the ground are connected by the diagonal support rod 16. Both ends of the diagonal support rod 16 are provided with threaded holes with opposite directions of rotation. The swivel bolt on the wall panel 300 and the swivel bolt on the ground respectively cooperate with the threaded holes with opposite directions of rotation at both ends of the diagonal support rod 16. The verticality of the wall panel 300 can be adjusted by rotating the diagonal support rod 16 in both directions. The verticality of the wall panel 300 is adjusted and fixed by the diagonal support rod 16. Multiple wall panels with different heights can be set up simultaneously in the same wall panel 300. The inclined support rod 16 provides support; after the wall panel 300 is fixed, the floor slab 400 is installed. Temporary supports with adjustable vertical height can be set according to the size and load of the floor slab 400 to prevent the floor slab 400 from sinking due to concentrated load during concrete pouring. The floor slab 400 should have no less than four hoisting points and the force should be evenly distributed. When the floor slab 400 is hoisted to a height of about one meter vertically above the installation position, the descent is paused. After the floor slab 400 is manually adjusted to the installation position, it is slowly lowered into place so that the formwork 9 in the floor slab 400 overlaps the top of the inner formwork 9 in the wall panel 300. After the floor slab 400 is in place, the extended portion of the space frame 200 at both ends of the floor slab 400 (the extension section and anchoring connection section of the mesh belt 100, which is also a closed loop structure at this time) is used to overlap with the extended portion of the space frame 200 in the adjacent floor slab 400. After the floor slab 400 is installed, adjusted, reinforced, and accepted, concrete is poured. Wall panel 300 concrete is poured first. During the pouring of wall panel 300, the pouring process can be controlled by observing the grout discharge from the grout outlets on wall panel 300. If all the concrete grout overflows from the outlets, it indicates that the concrete is fully and densely poured. If no grout overflows, it indicates that the concrete in that area may have honeycomb-like voids or other insufficient density. Effective measures should be taken promptly (such as strengthening vibration in that area) until grout discharge occurs. After the gaps in the wall panels are filled with concrete, the concrete is connected to the space frame 200, forming a reinforced concrete integral connection structure, i.e., forming the wall. After the wall panel 300 concrete is poured, floor slab 400 concrete is poured. After the floor slab 400 concrete is poured, the wall and floor slab 400 form a single-layer reinforced concrete structure, i.e., forming an assembly of precast components. The installation operation is simple, convenient, and quick.

[0117] The construction method for assembling precast components provided by this utility model solves the problem of not being able to observe the position when pouring concrete for double-layer composite slabs; it also solves the problem of high costs due to leakage and jamming during grouting connections of reinforcing steel sleeves, allowing for direct concrete pouring without a grouting process; and it addresses the inconvenience of hoisting heavy components, as its weight is only one-fifth that of precast solid concrete wall panels. The 200mm space frame is rigid and lightweight, effectively eliminating the need for specialized cranes or tower cranes for hoisting. It is low-cost and economical: reducing on-site work procedures and workload, lowering material and labor costs, improving efficiency, shortening the construction period, and enhancing economic benefits.

[0118] See Figure 29 and 30 The present invention provides another example of a prefabricated component assembly. The assembly is a multi-layer structure and includes wall panels 300 and floor slabs 400. The wall panels 300 and floor slabs 400 are prefabricated components as described in the first example above. The length of the space frame 200 in both the wall panels 300 and floor slabs 400 is greater than the length of the template 9. At least two wall panels 300 are provided at intervals. The floor slabs 400 are located on top of the wall panels 300, and the two ends of the template 9 in the floor slabs 400 are respectively attached to the template 9 on the inner side of the wall panels 300. Multiple wall panels 300 are connected sequentially along the height direction, and the portion of the space frame 200 at the top of the lower wall panel 300 that extends beyond its top floor slab 400 extends into the interior of the upper wall panel 300.

[0119] It should be noted that in this embodiment, the precast component assembly is a multi-layer structure. The lower layer assembly in the multi-layer structure is the same as the structure in the first example of the precast component assembly. After the concrete of the lower layer structure has solidified, the extension section at the top of the wall panel 300 extends beyond the top of the floor slab 400. The upper wall panel 300 adopts a structure with no exposed reinforcement at the bottom, that is, the bottom end of the formwork 9 in the precast component of the upper wall panel 300 is flush with the bottom end of the space frame 200. The part of the lower wall panel 300 that extends beyond the floor slab 400 is inserted into the bottom of the upper wall panel 300. After the upper wall panel 300 is installed, the upper floor slab 400 is installed, and then concrete is poured for the upper wall panel 300 and the upper floor slab 400. This reduces the on-site formwork 9 installation process. The concrete pouring creates an anchorage connection between the extension section of the lower wall panel 300 and the intermediate concrete in the upper wall panel 300, forming a reinforced concrete integral structure, that is, forming the precast component assembly. In this way, more layers of assemblies can be constructed.

[0120] According to the second example of the prefabricated component assembly provided by this utility model, when the number of wall panels 300 in the same direction is greater than two, the portion of the space frame 200 in the adjacent floor slabs 400 that extends beyond the template 9 overlaps with each other.

[0121] The precast component assembly provided by this utility model solves the problem of not being able to observe the position during the concrete pouring of double-layer composite slabs; it also solves the problem of high costs due to grout leakage and jamming during rebar sleeve grouting connections, allowing direct concrete pouring without a grouting process; and it solves the problem of inconvenient hoisting due to its heavy weight, as its weight is only one-fifth that of precast solid concrete wall panels. The 200mm space frame is rigid and lightweight, effectively eliminating the need for special cranes or tower cranes for hoisting. It is low-cost and economical: reducing on-site work procedures and workload, lowering material and labor costs, improving efficiency, shortening the construction period, and enhancing economic benefits.

[0122] See Figure 17-30 This utility model further explains a second example of a prefabricated component assembly through a construction method for the assembly of prefabricated components. The specific steps include:

[0123] S100, Construction of the lower-level assembly

[0124] Multiple wall panels 300 are spaced apart, the bottom of the wall panels 300 is fixed to the embedded parts 15 on the ground, and the wall panels 300 are supported by the diagonal support rods 16.

[0125] The floor slab 400 is horizontally hoisted onto the top of the wall panel 300, with the side of the floor slab 400 containing the template 9 facing downwards, and the two ends of the template 9 in the floor slab 400 are respectively overlapped onto the top of the template 9 in the wall panel 300.

[0126] Concrete is poured between the two formwork 9 in the wall panel 300 and on top of the floor slab 400;

[0127] S200, Construction of the upper assembly

[0128] After the concrete inside the wall panel 300 and above the floor slab 400 in the lower assembly has solidified, the wall panel 300 is installed on the space frame 200 extending beyond the floor slab 400 in the lower assembly. The upper assembly is constructed according to the method of constructing the lower assembly, and the multi-layer assembly is constructed in this manner.

[0129] In this embodiment, the construction method of the prefabricated component assembly can be specifically referred to in the construction method steps of the first example of a construction method for a prefabricated component assembly, and will not be repeated here.

[0130] The construction method for precast component assemblies provided by this utility model solves the problem of not being able to observe the position when pouring concrete for double-layer composite slabs; it also solves the problem of high costs due to leakage and jamming during grouting connections of reinforcing steel sleeves, allowing direct concrete pouring without a grouting process; and it addresses the inconvenience of hoisting heavy components, as its weight is equivalent to one-fifth of a 300mm precast solid concrete wall panel. The 200mm space frame is rigid yet lightweight, effectively eliminating the need for specialized cranes or tower cranes for hoisting. It is low-cost and economical: reducing on-site work procedures and workload, lowering material and labor costs, improving efficiency, shortening the construction period, and enhancing economic benefits.

[0131] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0132] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mesh belt, characterized in that, include: Two parallel vertical ribs; The transverse web reinforcement is provided in multiples, and the multiple transverse web reinforcements are arranged at intervals on the vertical reinforcement along the length direction of the vertical reinforcement. The transverse web reinforcements are fixedly connected to the vertical reinforcements. The top end of the vertical reinforcement has an extension section, and both ends of the transverse web reinforcements extend beyond the vertical reinforcement.

2. The web belt of claim 1, wherein, Each of the extension segments is provided with a hook at its end that bends toward the other vertical rib, and the hooks on the two vertical ribs are spaced apart or staggered with each other.

3. The web belt of claim 2, wherein, The lower ends of both vertical ribs are bent inward, and the bends of the two vertical ribs are connected to form a closed ring.

4. The web belt of claim 2, wherein, Both ends of the transverse ribs that extend beyond the vertical ribs are provided with connecting hooks.

5. The belt according to any of claims 1-4, characterized in that It also includes diagonal bracing reinforcement, which is disposed between the two vertical reinforcements and is connected to the vertical reinforcements.

6. The web belt of claim 4, wherein, The connecting hook is a composite positioning hook.

7. A grid, characterized in that The system includes multiple mesh belts as described in any one of claims 1-6, wherein the multiple mesh belts are spaced apart, and the vertical ribs on both sides of all the mesh belts are located in two different planes respectively; It also includes horizontal ribs, and each side of the plurality of mesh belts is provided with a plurality of horizontal ribs, the horizontal ribs being used to connect the vertical ribs on the same side of all the mesh belts together.

8. The rack of claim 7, wherein, Both ends of the horizontal rib extend beyond the beginning and end of all the mesh belts, and the portions of the horizontal rib extending beyond the beginning and end of the mesh belts are bent towards each other to form a closed shape. Alternatively, the portions of the horizontal reinforcing bars that extend beyond the mesh belt at both ends may be connected by connecting reinforcing bars to form a closed shape.

9. The rack of claim 7, wherein, It also includes diagonal support bars, which are disposed between adjacent mesh belts and are used to connect the vertical bars between adjacent mesh belts.

10. The rack of claim 9, wherein, The diagonal support bars are also provided between adjacent horizontal bars.

11. The rack of claim 7, wherein, It also includes a lifting ring, which has a closed end and the closed end of the lifting ring faces the extension of the mesh belt. The two ends of the lifting ring are respectively connected to the vertical ribs, horizontal ribs or transverse web ribs on both sides of the same mesh belt.

12. The rack of claim 7, wherein, It also includes tensile mesh, and tensile mesh is provided on the outside of the vertical ribs on the same side of all the mesh belts, and the tensile mesh is connected to the transverse web ribs in the mesh belt.

13. A precast component characterised by The space frame includes the space frame according to any one of claims 7-12, and further includes a template, wherein templates are provided on both sides of the space frame, and the templates are connected to the portion of the transverse web reinforcement that extends beyond the vertical reinforcement.

14. The preform of claim 13, wherein, The template is fixedly or detachably connected to the transverse abdominal ribs.

15. The preform of claim 14, wherein, It also includes a connector, through which the template and the transverse web reinforcement are connected.

16. The preform of claim 13, wherein It also includes an insulation board, which is sandwiched between the template and the space frame.

17. The preform of claim 13, wherein The template is one of a concrete slab, a wooden board, a steel plate, or a plastic board.

18. The preform of claim 17, wherein, When the template is a concrete slab, the interior of the concrete slab is provided with steel mesh and / or mesh fabric.

19. The preform of claim 18, wherein, The template is provided with multiple slurry outlet holes.

20. The preform of claim 18, wherein, The template has pre-embedded conduits or through holes inside.

21. A preform according to any one of claims 18-20, characterised in that Bolt mounting holes are provided on the templates on both sides of the space frame.

22. A preformed component characterised by The space frame includes the space frame according to any one of claims 7-12, and further includes a template, wherein a template is provided on one side of the space frame, and the template is connected to the portion of the transverse web reinforcement that extends beyond the vertical reinforcement.

23. The preform of claim 21, wherein, The open end of the vertical rib is also a closed ring shape.

24. An assembly of prefabricated components, characterized in that The assembly is a single-layer structure, comprising wall panels and floor slabs. The wall panels are prefabricated components as described in any one of claims 13-21, and the floor slabs are prefabricated components as described in any one of claims 22-23. The length of the space frame in both the wall panels and the floor slabs is greater than the length of the template. At least two wall panels are spaced apart. The floor slabs are located on top of the wall panels, and the two ends of the templates in the floor slabs overlap the templates on the inner side of the wall panels.

25. An assembly of precast components according to claim 24, wherein, When there are more than two wall panels in the same direction, the space frame portions of adjacent floor slabs that extend beyond the template overlap each other.

26. An assembly of prefabricated components, characterized in that The assembly is a multi-layer structure, comprising wall panels and floor slabs. The wall panels are prefabricated components as described in any one of claims 13-21, and the floor slabs are prefabricated components as described in any one of claims 22-23. The length of the space frame in both the wall panels and floor slabs is greater than the length of the template. At least two wall panels are spaced apart. The floor slabs are located on top of the wall panels, and the two ends of the templates in the floor slabs overlap the templates on the inner side of the wall panels. Multiple wall panels are connected sequentially along the height direction, and the portion of the space frame at the top of the lower wall panel that extends beyond the top floor slab extends into the interior of the upper wall panel.

27. An assembly of preformed components according to claim 26, wherein When there are more than two wall panels in the same direction, the space frame portions of adjacent floor slabs that extend beyond the template overlap each other.

Images