Green energy-saving assembly type wall column beam plate integrated construction device
By combining precast wall and column components with precast load-bearing beams, along with isolation components and insulation layers, the problem of concrete strength mismatch at beam-column joints in prefabricated buildings is solved, thereby improving structural stability and energy efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-04-03
AI Technical Summary
In the construction and integration of core components such as walls, columns, beams, and slabs, existing prefabricated buildings lack dedicated isolation structures for precast beam-column joints, leading to mismatched concrete strength, increased risk of structural cracking, and impact on vertical load-bearing capacity and building quality.
The design employs a combination of precast wall and column components, precast load-bearing beams, isolation components, and insulation layers. By setting up components such as pouring grooves, connecting bars, binding parts, and detachable parts, it achieves precise separation and stable connection of concrete, forming regular construction joints, ensuring that the concrete strength of each node meets the standards, and reducing heat transfer.
It enhances the overall stability and crack resistance of the structure, improves the load-bearing capacity of the floor and the energy efficiency of the building, and ensures construction quality and efficiency.
Smart Images
Figure CN121781678A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of green and energy-saving prefabricated wall, column, beam and slab technology, specifically to a green and energy-saving prefabricated wall, column, beam and slab integrated construction device. Background Technology
[0002] With the deep integration of industrialized construction and green development concepts, prefabricated construction technology has become a core solution to the drawbacks of high consumption, high pollution, and low efficiency in traditional cast-in-place construction. Its advantages in improving construction quality, shortening construction period, and reducing on-site wet work have been widely recognized in the industry. However, prefabricated buildings still face many technical bottlenecks in the construction and integration of core components such as walls, columns, beams, and slabs, which restricts their large-scale promotion and efficiency improvement.
[0003] However, in the existing construction mode, there is a lack of isolation structure specifically for precast beam-column joints. The concrete used for wall and column casting is very likely to mix with the concrete in the joint area at the end of the load-bearing beam during the casting process. When casting the wall and column, high-strength concrete may flow into the joint area of the load-bearing beam, causing the concrete strength in the joint area to exceed the design standard, resulting in local stress concentration and increasing the risk of structural cracking. Conversely, when casting the concrete in the joint area, low-strength concrete may also seep into the wall and column casting area, causing the local strength of the wall and column to be substandard and weakening the vertical load-bearing capacity. Summary of the Invention
[0004] The purpose of this invention is to provide a green and energy-saving prefabricated wall, column, beam and slab integrated construction device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A green and energy-saving prefabricated wall, column, beam, and slab integrated construction device includes: A precast wall column component, wherein a casting groove is provided on the top of the precast wall column component; Multiple sets of connecting bars are vertically embedded in the precast wall and column components, with the upper end extending to the casting groove and the lower end extending below the component, for connecting the upper precast wall and column components. A precast load-bearing beam is placed between two opposite precast wall column members, with both ends extending to the sides of the corresponding side members, and the ends are connected to the connecting reinforcement through connectors; Precast floor slabs are erected on precast load-bearing beams, and the ends are fixed to the precast load-bearing beams by tying devices; Two sets of isolation components are set at both ends of the precast load-bearing beam to separate the concrete at the joint area between the wall column and the beam end during on-site pouring, so as to avoid confusion in strength and form a regular construction joint. The exterior wall is located between two sets of precast wall column components, and is connected to the corresponding precast wall column components on both sides by connectors; The insulation layer, located on the outside of the exterior wall, is used to reduce heat transfer between the inside and outside of the building.
[0006] As a preferred technical solution, the binding component includes a component groove formed on the top of the precast load-bearing beam and arranged along its length. The cross-section of the component groove is trapezoidal with the larger end facing upward. Multiple sets of U-shaped strips are pre-embedded in the inner wall of the top of the component groove. The multiple sets of U-shaped strips are arranged linearly and at equal intervals. The end of the floor slab is provided with connecting strips of the same number as the U-shaped strips and arranged in a staggered manner. The U-shaped strips and connecting strips in the same position are tied together by steel wire. After the U-shaped strips and connecting strips are tied together, concrete is poured into the component groove.
[0007] As a preferred technical solution, wedge-shaped strips are integrally formed at both ends of the bottom of the floor slab, and the wedge-shaped strips can be engaged with the corresponding side cavity of the component groove.
[0008] As a preferred technical solution, the isolation component includes isolation plates disposed at the openings on both sides of the component groove. The isolation plates are connected to the corresponding side U-shaped strips through detachable components. The detachable components include connecting rods fixed to both ends of opposite sides of the isolation plates. A first arc-shaped piece is fixed to the end of the connecting rod. The first arc-shaped piece is snapped onto the end surface of the U-shaped strip. Its two ends are connected to a second arc-shaped piece through snap-fit components. The second arc-shaped piece and the first arc-shaped piece together enclose the end of the U-shaped strip. An adjustable abutment is provided on the back to tighten the U-shaped strip and achieve fixation.
[0009] As a preferred technical solution, the insulating plate is arranged in a wavy shape.
[0010] As a preferred technical solution, the snap-fit component includes a guide groove formed at the end of the first arc-shaped piece, a guide strip is slidably inserted into the guide groove, and the end of the guide strip is fixedly connected to the second arc-shaped piece; the abutment component includes an internally threaded tube communicating with the back of the second arc-shaped piece, the internally threaded tube is threadedly connected to a set screw, the end of the set screw abuts against the surface of the U-shaped strip, and rotating the set screw can achieve tightening or loosening.
[0011] As a preferred technical solution, the connector includes a spiral bar embedded in the precast bearing beam and arranged from bottom to top. The two ends of the spiral bar extend into the corresponding side casting groove and are sleeved on the outer circumference of multiple sets of connecting bars.
[0012] As a preferred technical solution, the connector includes a binding groove on the inner side of the precast wall column component and a connecting groove at the bottom of the inner side of the precast load-bearing beam; the first connecting bar embedded in the precast wall column component and the first embedded bar embedded in the outer wall both extend into the binding groove and are bound with steel wire; the second connecting bar embedded in the precast load-bearing beam and the second embedded bar embedded in the outer wall both extend into the connecting groove and are bound with steel wire; after binding, formwork is erected to close the binding groove and the connecting groove and concrete is poured.
[0013] As a preferred technical solution, the insulation layer includes spliced insulation boards disposed on the precast load-bearing beams, precast wall column components, and the outer side of the exterior wall, and fasteners for fixing the spliced insulation boards are pre-embedded in the precast load-bearing beams, precast wall column components, and the outer side of the exterior wall.
[0014] As a preferred technical solution, the fastener includes multiple sets of internally threaded cylinders embedded in the precast load-bearing beam, precast wall column components, and the outer side of the exterior wall. The multiple sets of internally threaded cylinders are arranged in a rectangular array. Fixing bolts are provided on the surface of the splicing insulation board and at corresponding positions of each set of internally threaded cylinders. The ends of each set of fixing bolts are threaded into the inner cavity of the corresponding side internally threaded cylinder, and the heads of the fixing bolts are pressed against the surface of the splicing insulation board.
[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes precast wall and column components, precast load-bearing beams, and isolation components. The precast wall and column components, through top casting grooves and connecting bars, provide reliable interfaces for connecting upper and lower components, ensuring vertical load transfer. Simultaneously, the connection between the precast load-bearing beams and precast wall and column components enables lateral load transfer, enhancing the overall structural stability. Furthermore, the connection design between the precast floor slabs and precast load-bearing beams ensures stable overlapping of the floor slabs, improving the floor's load-bearing capacity. Combined with isolation components, different strength grades of concrete are effectively separated, avoiding confusion and ensuring that the concrete strength at each node meets the standards. At the same time, regular construction joints are formed, facilitating subsequent construction and quality control. The connection between the exterior wall and the precast wall and column components achieves a stable integration between the exterior wall and the main structure. The installation of the insulation layer reduces heat transfer between the building's interior and exterior, improving the building's energy efficiency.
[0016] 2. The present invention, through the setting of isolation components and detachable components, the isolation plate of the isolation component is set at the openings on both sides of the component groove, which can accurately separate the concrete of the wall column and the concrete of the end node area of the precast load-bearing beam during on-site pouring. In addition, the isolation plate is connected to the U-shaped strip by the detachable component to achieve stable installation of the isolation plate, ensure reliable isolation effect, and avoid confusion of concrete of different strength grades.
[0017] 3. The present invention uses a wave-shaped insulating plate, which, compared with a planar structure, increases the contact area between the insulating plate and the concrete, improves the isolation and sealing performance, and further prevents leakage and mixing of concrete of different strength grades during the pouring process. At the same time, the wave-shaped structure can enhance the structural strength of the insulating plate itself, avoid its deformation due to external forces during construction, ensure the stable performance of the isolation function, and improve construction quality and efficiency.
[0018] 4. The present invention provides reasonable installation space for the ends of the precast floor slab by setting the binding parts, which facilitates the positioning and docking of the floor slab and the precast load-bearing beam. The staggered setting of the U-shaped strip and the connecting strip and the binding with steel wire form a reliable steel reinforcement connection node, which enhances the connection strength between the floor slab and the load-bearing beam. After pouring concrete into the component groove, the U-shaped strip, the connecting strip, the load-bearing beam and the floor slab can be tightly combined, which further improves the connection stability, effectively transfers the load, and improves the crack resistance of the structure, ensuring the long-term reliability of the floor structure. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of the green and energy-saving prefabricated wall, column, beam and slab integrated construction device of the present invention; Figure 2 This is a schematic diagram of the exterior wall structure of the present invention; Figure 3 This is a schematic diagram of the connecting groove of the present invention; Figure 4 This is a schematic diagram of the structure of the component groove of the present invention; Figure 5 This is a schematic diagram showing the structural location of the casting trough in this invention; Figure 6 This is a schematic diagram of the structure of the insulating plate of the present invention.
[0020] In the picture: 100. Precast wall and column components; 101. Casting groove; 102. Connecting bar; 103. Binding groove; 104. First connecting bar; 200. Precast floor slab; 201. Connecting strip; 202. Wedge strip; 300. Fixing bolts; 301. Splicing insulation board; 303. Internally threaded cylinder; 400. Precast load-bearing beam; 401. U-shaped strip; 402. Component groove; 403. Rebar; 404. Connecting groove; 405. Second connecting bar; 500, Exterior wall; 501, First embedded reinforcement bar; 502, Second embedded reinforcement bar; 600. Insulation plate; 601. Connecting rod; 602. First arc-shaped piece; 603. Guide groove; 604. Guide strip; 605. Second arc-shaped piece; 606. Internally threaded tube; 607. Set screw. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] Please see Figure 1-6 This embodiment provides a green and energy-saving prefabricated wall, column, beam, and slab integrated construction device, including a prefabricated wall column component 100, the top of which has a casting groove 101; connecting bars 102, multiple sets of which are vertically embedded inside the prefabricated wall column component 100, the upper end of which extends into the casting groove 101 and the lower end of which extends below the prefabricated wall column component 100, the connecting bars 102 being used to connect with the upper prefabricated wall column component 100; and a prefabricated load-bearing beam 400, which is disposed between two oppositely disposed prefabricated wall column components 100, with its two ends... Each precast wall column component 100 extends to the side of its corresponding precast wall column component 100. Connectors are provided at the ends of the precast load-bearing beam 400, and these connectors are connected to the pre-embedded connecting bars 102 in the corresponding precast wall column component 100. A precast floor slab 200 is erected on the precast load-bearing beam 400, and its ends are connected to the precast load-bearing beam 400 via binding members. Two sets of isolation members are respectively located at both ends of the precast load-bearing beam 400. These isolation members are used to separate the wall column concrete from the concrete at the end joint area of the precast load-bearing beam 400 during on-site concrete pouring, ensuring different strengths. The grade of concrete is not mixed and forms regular construction joints; the exterior wall 500 is set between two sets of precast wall column components 100, and the two sides of the exterior wall 500 are connected to the corresponding precast wall column components 100 by connectors; the insulation layer is set on the outside of the exterior wall 500. The insulation layer is used to reduce the heat transfer between the inside and outside of the building. Through the setting of precast wall column components 100, precast load-bearing beams 400 and isolation components, the precast wall column components 100 provide a reliable interface for the connection between the upper and lower components through the top casting groove 101 and connecting bars 102, ensuring the vertical load transfer, while the precast load-bearing beams 400... The connection between the precast wall and column components 100 enables lateral load transfer, enhancing the overall structural stability. Furthermore, the connection design between the precast floor slab 200 and the precast load-bearing beam 400 ensures a stable overlap of the floor slabs, improving the floor's load-bearing capacity. The isolation components effectively separate concrete of different strength grades, preventing confusion and ensuring that the concrete strength at each node meets standards. Simultaneously, it forms regular construction joints, facilitating subsequent construction and quality control. The connection between the exterior wall 500 and the precast wall and column components 100 achieves a stable integration between the exterior wall 500 and the main structure. The insulation layer reduces heat transfer between the building's interior and exterior, improving the building's energy efficiency.
[0023] The binding components include a component groove 402 located on the top of the precast load-bearing beam 400 and extending along its length. The cross-section of the component groove 402 is trapezoidal with the larger end facing upwards. Multiple sets of U-shaped strips 401 are embedded in the inner top wall of the component groove 402, arranged linearly and at equal intervals. The ends of the floor slab are provided with connecting strips 201 of the same number as the U-shaped strips 401, arranged in a staggered manner. The U-shaped strips 401 and connecting strips 201 in the same position are bound together with steel wire. After the U-shaped strips 401 and connecting strips 201 are bound together, concrete is poured into the component groove 402. The soil, through the setting of the binding parts, provides a reasonable installation space for the end of the precast floor slab 200, which facilitates the positioning and docking of the floor slab and the precast load-bearing beam 400. The staggered setting of the U-shaped strip 401 and the connecting strip 201 and the binding with steel wire form a reliable steel reinforcement connection node, which enhances the connection strength between the floor slab and the load-bearing beam. After pouring concrete into the component groove 402, the U-shaped strip 401, the connecting strip 201 and the load-bearing beam and floor slab can be tightly combined, further improving the connection stability, effectively transferring the load, and improving the crack resistance of the structure, ensuring the long-term reliability of the floor structure.
[0024] The floor slab has wedge-shaped strips 202 integrally formed at both ends of its bottom. The wedge-shaped strips 202 can be engaged with the corresponding inner cavity of the component groove 402. By setting the wedge-shaped strips 202, the wedge-shaped strips 202 at both ends of the floor slab can be engaged with the corresponding inner cavity of the component groove 402. Combined with the limiting effect of the wedge structure, the prefabricated floor slab 200 is initially positioned on the prefabricated load-bearing beam 400, effectively preventing the floor slab from shifting laterally during construction. This facilitates the subsequent binding operation of the U-shaped strips 401 and the connecting strips 201, and improves construction efficiency.
[0025] The isolation component includes isolation plates 600 disposed on both sides of the component groove 402, and the opposite side of the isolation plate 600 is connected to the corresponding side U-shaped strip 401 by a detachable component. The detachable component includes connecting rods 601 fixedly installed at both ends of the opposite side of the two sets of isolation plates 600. The other end of each set of connecting rods 601 is fixedly connected to a first arc-shaped piece 602. Each set of first arc-shaped pieces 602 is snapped onto the end surface of the corresponding side U-shaped strip 401. The two ends of each set of first arc-shaped pieces 602 are connected by snap-fit pieces to a second arc-shaped piece 605 for jointly enclosing the end surface of the corresponding side U-shaped strip 401. The back of the second arc-shaped piece 605 is provided with an adjustable abutment for pressing against the end of the U-shaped strip 401 to achieve fixation. Through the setting of the isolation component and the detachable component, the isolation plate 600 of the isolation component is set at the openings on both sides of the component groove 402, which can accurately separate the concrete of the wall column from the concrete of the end node area of the precast bearing beam 400 during on-site pouring. In addition, the detachable component connects the isolation plate 600 to the U-shaped strip 401 to achieve stable installation of the isolation plate 600, ensure reliable isolation effect, and avoid mixing of concrete of different strength grades.
[0026] The insulating plate 600 can be made of galvanized thin steel plate, modified polypropylene plastic plate, etc., and the surface is treated with a demolding process.
[0027] Among them, the isolation plate 600 is designed in a wave shape, which increases the contact area between the isolation plate 600 and the concrete compared with the planar structure, improves the isolation and sealing performance, and further prevents leakage and mixing of concrete of different strength grades during the pouring process. At the same time, the wave shape can enhance the structural strength of the isolation plate 600 itself, avoid its deformation due to external forces during construction, ensure the stable performance of the isolation function, and improve the construction quality and efficiency.
[0028] The snap-fit component includes a guide groove 603 formed at the end of each set of first arc-shaped pieces 602 and arranged along its height. A guide strip 604 is slidably inserted into the inner cavity of each set of guide grooves 603. The ends of two sets of guide strips 604 at the same position are respectively fixedly connected to the ends of the corresponding second arc-shaped pieces 605. Through the snap-fit component, the sliding design of the guide strips 604 in the guide grooves 603 can realize the position adjustment of the second arc-shaped pieces 605, which is convenient to adjust according to the actual size and installation position of the U-shaped strip 401, ensuring that the second arc-shaped pieces 605 and the U-shaped strip 401 fit tightly together and improving the connection adaptability. The abutment includes an internally threaded tube 606 connected to the back of each group of second arc-shaped plates 605. The inner cavity of each group of internally threaded tubes 606 is threaded with a set screw 607. The end of each set screw 607 abuts against the end surface of the corresponding U-shaped strip 401. Rotating the set screw 607 can make its end abut against or disengage from the U-shaped strip 401. Through the setting of the abutment, the set screw 607 is threadedly connected through the internally threaded tube 606. Rotating the set screw 607 can make its end abut against or disengage from the U-shaped strip 401. This can not only achieve a firm fixation of the isolation plate 600 and ensure the isolation effect, but also facilitate disassembly after pouring. The operation is simple and efficient, improving the flexibility and convenience of construction.
[0029] The connector includes a spiral bar 403 embedded inside the precast load-bearing beam 400 and arranged from bottom to top. The two ends of the spiral bar 403 extend into the corresponding side pouring groove 101 and are fitted onto the outer periphery of multiple sets of connecting bars 102. Through the setting of the connector, the spiral bar 403 is embedded inside the precast load-bearing beam 400, and the two ends extend into the pouring groove 101 and are fitted onto the outer periphery of the connecting bars 102, forming a cross-fixing structure of the steel reinforcement skeleton. This can effectively enhance the connection strength between the precast load-bearing beam 400 and the precast wall column component 100. After the pouring groove 101 is filled with concrete on site, the spiral bar 403 and the connecting bars 102 are firmly combined, realizing reliable load transfer between the two, improving the lateral structural stability, and ensuring the overall load-bearing performance of the building.
[0030] The connector includes a binding groove 103 located inside the precast wall column component 100 and near the end of the precast load-bearing beam 400. First connecting bars 104 are embedded in the precast wall column component 100 from top to bottom. The end of each set of first connecting bars 104 extends into the binding groove 103. First embedded bars 501 are embedded in the exterior wall 500 from top to bottom. The two ends of each set of first embedded bars 501 extend to the outside and into the binding groove 103. The ends of the first embedded bars 501 at the same position are respectively bound together with the first connecting bars 104 at the corresponding positions by steel wire. A connecting groove 404 is provided on the inner bottom of the precast load-bearing beam 400. Second connecting bars 405 are embedded in the interior of the precast load-bearing beam 400 from left to right. The lower end of each set of second connecting bars 405 extends into the connecting groove 404. Second embedded bars 502 are embedded in the interior of the outer wall 500 from left to right. The end of each set of second embedded bars 502 extends into the connecting groove 404 and is tied together with the corresponding second connecting bars 405 by steel wire. After the first embedded bar 501 and the first connecting bar 104, and the second embedded bar 502 and the second connecting bar 405 are tied together, the formwork is erected to seal the binding groove 103 and the connecting groove 404 and then concrete is poured. Through the setting of the connectors, the first embedded bar 501 and the first connecting bar 104 are tied together in the binding groove 103 and concrete is poured to ensure the vertical connection stability between the exterior wall 500 and the precast wall column component 100 and prevent the exterior wall 500 from shifting vertically. The second embedded bar 502 and the second connecting bar 405 are tied together in the connecting groove 404 and concrete is poured to achieve a stable horizontal connection between the exterior wall 500 and the precast load-bearing beam 400, effectively transferring the horizontal load and avoiding the horizontal deformation of the exterior wall 500. The two-way connection design comprehensively improves the integrity of the exterior wall 500 and the main structure, enhances the comprehensive performance of the building in terms of wind resistance and earthquake resistance, and at the same time, by erecting the formwork and pouring concrete, the connection node is sealed reliably, improving the structural durability.
[0031] The insulation layer includes spliced insulation boards 301 installed on the outside of the precast load-bearing beams 400, precast wall and column components 100, and exterior walls 500. Fasteners for fixing the spliced insulation boards 301 are pre-embedded on the outside of the precast load-bearing beams 400, precast wall and column components 100, and exterior walls 500. Through the installation of the spliced insulation boards 301, the spliced insulation boards 301 cover the outside of the precast load-bearing beams 400, precast wall and column components 100, and exterior walls 500, forming an integrated insulation system. This system can completely block heat exchange between the inside and outside of the building, significantly improve the building's energy-saving effect, and reduce energy consumption. Furthermore, the fasteners fix the insulation boards to the outside of the components, ensuring that the insulation boards are firmly installed and preventing them from falling off or shifting during use. This ensures the integrity of the insulation layer, maintains stable insulation performance, and improves the building's living comfort and economic efficiency.
[0032] Among them, the splicing insulation board 301 can be selected as extruded polystyrene foam board (XPS board), and preferably has a thermal conductivity of 0.030-0.032W / (m). B1-grade flame-retardant panels (K) ensure fire safety while reducing heat transfer between the building's interior and exterior. Alternatively, rigid polyurethane foam insulation boards with a thermal conductivity of 0.024-0.030 W / (m²) can be used. K) On-site foamed or precast panels with a closed-cell rate of ≥90%, which have both thermal insulation and waterproof properties, and are suitable for installation environments such as the exterior of exterior walls and the surface of precast components.
[0033] The fasteners include multiple sets of internally threaded cylinders 303 embedded in the precast load-bearing beam 400, the precast wall column component 100, and the outer wall 500. These internally threaded cylinders 303 are arranged in a rectangular array, and each internally threaded cylinder 303 is coated with an anti-corrosion coating, which is either a hot-dip galvanized coating or an epoxy resin coating. Anti-detachment discs are fixedly connected to the ends of the internally threaded cylinders 303. Fixing bolts 300 are threaded onto the surface of the splicing insulation board 301 at corresponding positions on each set of internally threaded cylinders 303. The ends of each fixing bolt 300 are threaded to the corresponding internally threaded cylinder. The inner cavity of 303 has the head of the fixing bolt 300 pressed against the surface of the splicing insulation board 301. Through the setting of fasteners, the fixing bolt 300 passes through the splicing insulation board 301 and is threaded to the inner threaded cylinder 303. The insulation board is tightly fixed by pressing the bolt head against the insulation board. The connection method is simple and reliable, and the installation efficiency is high. Furthermore, the inner threaded cylinder 303 and the fixing bolt 300 arranged in a rectangular array can make the insulation board bear the force evenly, further ensuring the stability of the insulation board installation, preventing it from loosening due to external force or temperature changes, ensuring that the insulation layer remains intact for a long time and continues to perform its insulation function.
[0034] Working principle; The precast wall column component 100 serves as the core load-bearing foundation. Its top is pre-cast with a pouring groove 101, and multiple sets of connecting bars 102 are vertically embedded inside. The upper end of the connecting bars 102 extends into the pouring groove 101, and the lower end extends out from below the component, thus providing a connection interface for the upper precast wall column component 100. The precast load-bearing beam 400 is erected between two opposite precast wall column components 100. The ends are connected to the connecting bars 102 of the wall column through connectors. The connectors are embedded in the load-bearing beam using U-shaped bars 403. The two ends of the U-shaped bars 403 extend into the casting groove 101 of the wall column and are fitted around the outer periphery of multiple sets of connecting bars 102 to form a cross-fixed steel reinforcement skeleton. During subsequent on-site casting, the concrete fills the casting groove 101, firmly connecting the U-shaped bars 403 and the connecting bars 102, realizing a stable connection between the load-bearing beam and the wall column and transferring lateral loads. The precast floor slab 200 is erected on the precast load-bearing beam 400. The wedge-shaped strips 202 integrally formed at the bottom of both ends of the floor slab can be snapped into the pre-set trapezoidal component grooves 402 at the top of the load-bearing beam. The wedge structure achieves initial positioning and prevents the floor slab from shifting laterally. Meanwhile, multiple sets of linearly equidistant U-shaped strips 401 are pre-embedded in the inner wall of the component groove 402, and the same number of staggered connecting strips 201 are set at the end of the floor slab. During construction, the U-shaped strips 401 and connecting strips 201 at the same position are tied with steel wire to form a steel reinforcement connection node. Then, concrete is poured into the component groove 402. After the concrete solidifies, the U-shaped strips 401, connecting strips 201 are tightly connected with the load-bearing beam and the floor slab to ensure the load transfer between the floor slab and the load-bearing beam and improve the crack resistance and stability of the overall structure. Furthermore, the isolation components are installed at both ends of the precast load-bearing beam 400 to separate the concrete of the wall columns from the concrete at the end joint area of the load-bearing beam during on-site casting, preventing the mixing of concrete of different strength grades, and forming a regular construction joint to ensure that the concrete strength of each area meets the design requirements. The main body of the isolation component is a corrugated isolation plate 600, installed at the openings on both sides of the component groove 402. The detachable part is connected to the corresponding side of the U-shaped strip 401. The connecting rod 601 of the detachable part is fixed on the opposite side of the partition plate 600. The first arc-shaped piece 602 at the end of the connecting rod 601 is snapped onto the end surface of the U-shaped strip 401. The second arc-shaped piece 605 is connected to the first arc-shaped piece 602 through the snap-fit part, together enclosing the end of the U-shaped strip 401. During the connection process, the guide strip 604 of the snap-fit component can slide in the guide groove 603 of the first arc-shaped piece 602 to realize the position adjustment of the second arc-shaped piece 605 and ensure that it fits against the U-shaped strip 401; Subsequently, the internally threaded tube 606 on the back of the second arc-shaped piece 605 is internally threaded to the set screw 607. Rotating the set screw 607 causes its end to press against the U-shaped strip 401, thereby firmly fixing the isolation plate 600 to the opening of the component groove 402, forming a reliable isolation barrier. After casting is completed, the set screw 607 can be rotated in the opposite direction to disassemble the second arc-shaped piece 605 and the first arc-shaped piece 602. The exterior wall 500 is positioned between two sets of precast wall column components 100 and is fixed to the main structure from two dimensions through connectors. A binding groove 103 is pre-set on the inner side of the precast wall column component 100 near the end of the load-bearing beam. The ends of the first connecting bar 104 pre-embedded from top to bottom inside the wall column extend into the binding groove 103. The two ends of the first embedded bar 501 pre-embedded inside the outer wall 500 extend out and enter the binding groove 103. After the first embedded bar 501 and the first connecting bar 104 at the same position are tied with steel wire, the formwork is erected to close the binding groove 103 and concrete is poured to form a vertical connection node, ensuring the vertical stability of the outer wall 500 and the wall column. A pre-set connecting groove 404 is provided at the bottom of the inner side of the precast load-bearing beam 400. The lower end of the second connecting bar 405, which is embedded from left to right inside the load-bearing beam, extends into the connecting groove 404. The end of the second pre-embedded bar 502, which is embedded inside the outer wall 500, enters the connecting groove 404. After being tied with the corresponding second connecting bar 405 by steel wire, the connecting groove 404 is closed by setting up a template and pouring concrete to form a transverse connection node, which prevents the outer wall 500 from shifting laterally and at the same time transmits the transverse load. The insulation layer uses spliced insulation board 301, which covers the outside of the precast load-bearing beam 400, precast wall column components 100 and exterior wall 500. It is fixed by fasteners to form an overall insulation system, reducing heat transfer between the inside and outside of the building and improving energy-saving effect. Furthermore, multiple sets of rectangular arrayed internally threaded cylinders 303 are pre-embedded on the outside of the precast load-bearing beam 400, wall column components, and outer wall 500. Fixing bolts 300 are inserted through the surface of the splicing insulation board 301 at the positions corresponding to the internally threaded cylinders 303. The bolt ends are threaded to the inner cavity of the internally threaded cylinders 303, and the bolt heads are pressed against the surface of the insulation board, which tightly fixes the insulation board to the outside of the components, preventing the insulation board from falling off or shifting, and ensuring the integrity and insulation effect of the insulation layer.
[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A green and energy-saving prefabricated integrated construction device for walls, columns, beams, and slabs, characterized in that, include: A precast wall column component (100) has a casting groove (101) on its top. Multiple sets of connecting bars (102) are vertically embedded in the precast wall column component (100), with the upper end extending to the casting groove (101) and the lower end extending below the component, for connecting the upper precast wall column component (100). A precast load-bearing beam (400) is disposed between two opposite precast wall column members (100), with both ends extending to the side of the corresponding side member, and the ends connected to the connecting bar (102) through connectors; The precast floor slab (200) is erected on the precast load-bearing beam (400), and its ends are fixed to the precast load-bearing beam (400) by binding. Two sets of isolation components are set at both ends of the precast load-bearing beam (400) to separate the concrete of the wall column and the beam end node area during on-site pouring, so as to avoid confusion of strength and form a regular construction joint; The exterior wall (500) is located between two sets of precast wall column components (100), and is connected to the corresponding precast wall column components (100) on both sides by connectors; The insulation layer is located on the outside of the exterior wall (500) to reduce heat transfer between the inside and outside of the building.
2. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 1, characterized in that: The binding component includes a component groove (402) opened on the top of the precast load-bearing beam (400) and arranged along its length. The cross-section of the component groove (402) is trapezoidal with the large end facing upward. Multiple sets of U-shaped strips (401) are pre-embedded in the inner wall of the top of the component groove (402). The multiple sets of U-shaped strips (401) are arranged linearly and at equal intervals. The end of the floor slab is provided with connecting strips (201) of the same number as the U-shaped strips (401) and arranged in a staggered manner. The U-shaped strips (401) and connecting strips (201) in the same position are tied together by steel wire. After the U-shaped strips (401) and connecting strips (201) are tied together, concrete is poured into the component groove (402).
3. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 2, characterized in that: Both ends of the floor slab are integrally formed with wedge-shaped strips (202), which can be engaged with the corresponding side cavity of the component groove (402).
4. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 3, characterized in that: The isolation component includes an isolation plate (600) disposed at the openings on both sides of the component groove (402). The isolation plate (600) is connected to the corresponding side U-shaped strip (401) through a detachable component. The detachable component includes a connecting rod (601) fixed at both ends of the opposite side of the isolation plate (600). A first arc-shaped piece (602) is fixed at the end of the connecting rod (601). The first arc-shaped piece (602) is snapped onto the end surface of the U-shaped strip (401). Its two ends are connected to a second arc-shaped piece (605) through a snap-fit component. The second arc-shaped piece (605) and the first arc-shaped piece (602) together enclose the end of the U-shaped strip (401). An adjustable abutment is provided on the back to tighten the U-shaped strip (401) to achieve fixation.
5. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 4, characterized in that: The insulating plate (600) is arranged in a wavy shape.
6. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 5, characterized in that: The snap-fit component includes a guide groove (603) formed at the end of the first arc-shaped piece (602), a guide strip (604) is slidably inserted into the guide groove (603), and the end of the guide strip (604) is fixedly connected to the second arc-shaped piece (605); the abutment component includes an internally threaded tube (606) communicating with the back of the second arc-shaped piece (605), the internally threaded tube (606) is threadedly connected to a set screw (607), the end of the set screw (607) abuts against the surface of the U-shaped strip (401), and rotating the set screw (607) can achieve abutment or disengagement.
7. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 1, characterized in that: The connector includes a spiral bar (403) embedded in the precast bearing beam (400) and arranged from bottom to top. The two ends of the spiral bar (403) extend into the corresponding side casting groove (101) and are sleeved on the outer periphery of multiple sets of connecting bars (102).
8. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 7, characterized in that: The connectors include a binding groove (103) on the inner side of the precast wall column component (100) and a connecting groove (404) at the bottom of the inner side of the precast load-bearing beam (400); the first connecting bar (104) embedded in the precast wall column component (100) and the first embedded bar (501) embedded in the outer wall (500) both extend into the binding groove (103) and are bound with steel wire; the second connecting bar (405) embedded in the precast load-bearing beam (400) and the second embedded bar (502) embedded in the outer wall (500) both extend into the connecting groove (404) and are bound with steel wire; after binding, formwork is erected to close the binding groove (103) and the connecting groove (404) and concrete is poured.
9. The green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 1, characterized in that: The insulation layer includes spliced insulation boards (301) disposed on the outside of the precast load-bearing beam (400), the precast wall column component (100), and the outer wall (500), and fasteners for fixing the spliced insulation boards are pre-embedded on the outside of the precast load-bearing beam (400), the precast wall column component (100), and the outer wall (500).
10. A green and energy-saving prefabricated wall, column, beam, and slab integrated construction device according to claim 9, characterized in that: The fasteners include multiple sets of internally threaded cylinders (303) pre-embedded in the precast bearing beam (400), precast wall column components (100), and the outer wall (500). The multiple sets of internally threaded cylinders (303) are arranged in a rectangular array. Fixing bolts (300) are provided on the surface of the splicing insulation board (301) and at corresponding positions of each set of internally threaded cylinders (303). The ends of each set of fixing bolts (300) are threaded to the inner cavity of the corresponding side internally threaded cylinder (303), and the heads of the fixing bolts (300) are pressed against the surface of the splicing insulation board (301).