Fabricated building energy conservation and emission reduction system based on BIM

Abstract

The utility model relates to the technical field of green buildings, in particular to a fabricated building energy conservation and emission reduction system based on BIM. Comprising a plurality of assembly type frames which are spliced with one another, inner side wallboards and outer side wallboards which are arranged on the two sides of the assembly type frames correspondingly, vertical keels and transverse keels which are used for connecting the assembly type frames, the vertical keels and the transverse keels form a latticed supporting structure, and cavities are formed in the middles of the assembly type frames; double-layer vacuum glass is embedded in a cavity of the assembly type frame, and the inner side wall plate and the outer side wall plate are detachably installed on the two sides of the assembly type frame respectively. The inner side wall plate and the outer side wall plate are convenient to disassemble, double-layer glass is exposed, lighting is increased, and meanwhile the problems that a traditional outer wall is insufficient in heat preservation and heat insulation effect and high in energy consumption are solved.

Description

Technical Field

[0001] This utility model relates to the field of green building technology, and in particular to a BIM-based prefabricated building energy-saving and emission-reduction system. Background Technology

[0002] Building Information Modeling (BIM) technology has demonstrated significant advantages in the standardized design, prefabricated component production, and construction management of prefabricated buildings through the integration and application of data throughout the entire building lifecycle.

[0003] Prefabricated buildings offer advantages such as factory production of prefabricated components, convenient on-site construction, and easy disassembly and replacement. As a core component of the building's external envelope, the complexity of the traditional prefabricated building exterior wall installation process has always been a challenge for prefabricated building construction. Its thermal insulation performance directly affects the indoor thermal environment and energy consumption levels. Current prefabricated building exterior walls often employ multi-layer insulated composite panel pressing structures, increasing the insulation layer thickness to improve thermal resistance. However, this type of structure relies primarily on passively blocking heat transfer by fixing the insulation material, resulting in poor thermal insulation performance. Furthermore, increasing the insulation layer thickness not only occupies indoor space but may also lead to a decline in insulation performance due to material aging and other issues.

[0004] Therefore, it is necessary to use BIM technology to optimize the exterior wall structure of prefabricated buildings and design an energy-saving wall system with thermal insulation to solve the problems of insufficient thermal insulation effect and high energy consumption of traditional exterior walls. Utility Model Content

[0005] To address the problem of insufficient thermal insulation performance of traditional exterior walls, this utility model provides a BIM-based prefabricated building energy-saving and emission-reduction system.

[0006] This utility model provides a BIM-based prefabricated building energy-saving and emission-reduction system, comprising multiple interconnected prefabricated frames, inner and outer wall panels respectively placed on both sides of the prefabricated frames for connecting the vertical and horizontal keels of the prefabricated frames. The vertical and horizontal keels form a grid-like support structure. The prefabricated frames have a cavity in the middle, and double-layer vacuum glass is embedded in the cavity of the prefabricated frames. The inner and outer wall panels are detachably installed on both sides of the prefabricated frames.

[0007] Furthermore, the inner wall panel includes a decorative panel one, an insulation panel one, and a sound insulation panel. The insulation panel one is close to the double-layer vacuum glass. The inner wall panel is formed by pressing the sound insulation panel, the insulation panel one, and the decorative panel together. The outer wall panel includes a waterproof panel and an insulation panel two. The outer wall panel is formed by pressing the waterproof panel and the insulation panel two together.

[0008] Furthermore, the prefabricated frame has a U-shaped structure, and snap-fit ​​grooves are provided around the inner and outer sides of the prefabricated frame. The inner wall panel and the outer wall panel form snap-fit ​​outer edges that snap into the snap-fit ​​grooves. The snap-fit ​​outer edges are perpendicular to the surface of the inner wall panel or the outer wall panel. A sealing strip is provided in the snap-fit ​​groove.

[0009] Furthermore, the cross-section of the horizontal keel is an I-shaped structure, the horizontal keel is fixedly installed with the vertical keel, and the prefabricated frame is set within the grid-like support structure formed by the vertical keel and the horizontal keel.

[0010] Furthermore, the cross-section of the vertical keel is an I-shaped structure, and the four corners of the prefabricated frame are formed with mounting grooves, the mounting groove openings facing the horizontal keel.

[0011] Furthermore, the prefabricated frame has a limiting protrusion facing the vertical keel. The limiting protrusion is formed on the outer side of the left and right frames of the prefabricated frame, and the vertical keel has a limiting groove that cooperates with the limiting protrusion.

[0012] Furthermore, the prefabricated frame has a second limiting protrusion facing the horizontal keel. The second limiting protrusion is formed on the outer side of the upper and lower frames of the prefabricated frame, and the horizontal keel has a second limiting groove that cooperates with the second limiting protrusion.

[0013] Furthermore, the inner wall panel and the outer wall panel have fixed outer edges, which are attached to the outer frame of the prefabricated frame, and the inner wall panel and the outer wall panel are fixedly connected to the prefabricated frame through the fixed outer edges.

[0014] Furthermore, a wave-shaped decorative structure is formed on the waterproof panel.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] 1. The present invention proposes a BIM-based prefabricated building energy-saving and emission-reduction system, which features convenient installation. The prefabricated frame and vertical and horizontal keels cooperate through limiting protrusions and limiting grooves. The inner and outer wall panels are quickly snapped into the prefabricated frame by using the snap-fit ​​outer edge. With the auxiliary fixing of the fixed outer edge, the installation time is greatly shortened and the installation efficiency of the prefabricated building exterior wall is improved.

[0017] 2. This utility model has highly efficient thermal insulation performance, employing double-layer vacuum glass to reduce heat conduction. The insulation board one on the inner wall panel and the insulation board two on the outer wall panel work synergistically with the double-layer vacuum glass to effectively block heat transfer from multiple levels, reducing the thickness of the insulation layer, significantly improving the thermal insulation effect of the exterior wall, and reducing indoor energy consumption.

[0018] 3. This utility model provides convenient enclosure, allowing for easy removal of the wall panels to be replaced or repaired without dismantling a large area of ​​the surrounding structure. It also allows for the protrusion of double-glazed windows to increase indoor lighting. Attached Figure Description

[0019] Figure 1 This is a front structural diagram of a BIM-based prefabricated building energy-saving and emission-reduction system according to an embodiment of this utility model.

[0020] Figure 2 This is a schematic diagram of the rear structure of a BIM-based prefabricated building energy-saving and emission-reduction system according to an embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the assembled frame according to an embodiment of the present utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the inner wall panel in an embodiment of this utility model.

[0023] Figure 5 This is a side view of the inner wall panel of an embodiment of this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the outer wall panel of an embodiment of this utility model.

[0025] Figure 7 This is a side view of the outer wall panel of an embodiment of this utility model.

[0026] Figure 8 This is a cross-sectional schematic diagram of the horizontal keel according to an embodiment of the present invention.

[0027] Figure 9 This is a cross-sectional schematic diagram of the vertical keel according to an embodiment of the present invention.

[0028] Among them, 1. Prefabricated frame; 101. Snap-fit ​​groove; 102. Installation groove; 103. Limiting protrusion one; 104. Limiting protrusion two; 105. Double-layer vacuum glass; 2. Inner wall panel; 201. Decorative panel one; 202. Insulation board one; 203. Sound insulation board; 204. Snap-fit ​​outer edge; 205. Fixed outer edge; 3. Outer wall panel; 301. Waterproof panel; 302. Insulation board two; 303. Wave-shaped decorative structure; 4. Vertical keel; 401. Limiting groove one; 5. Horizontal keel; 501. Limiting groove two; 6. Double-layer vacuum glass. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] Reference Figure 1 , Figure 2 This embodiment of a BIM-based prefabricated building energy-saving and emission-reduction system includes multiple interconnected prefabricated frames 1, inner wall panels 2 and outer wall panels 3 respectively placed on both sides of the prefabricated frame 1, for connecting the vertical keels 4 and horizontal keels 5 of the prefabricated frame 1. The vertical keels 4 and horizontal keels 5 form a grid-like support structure, as shown in the figure. Figure 3 The prefabricated frame 1 has a cavity in the middle, and double-layer vacuum glass 105 is embedded in the cavity of the prefabricated frame 1. The inner wall panel 2 and the outer wall panel 3 are respectively detachably installed on both sides of the prefabricated frame 1.

[0032] To enhance the connection stability of the prefabricated frame 1, the system employs vertical joists 4 and horizontal joists 5. Both vertical joists 4 and horizontal joists 5 are made of high-strength steel and intersect perpendicularly to form a grid-like support structure. This structure not only provides stable support for the prefabricated frame 1 but also enhances the seismic performance of the entire wall.

[0033] Reference Figure 5 and Figure 7 The inner wall panel 2 includes a decorative panel 201, an insulation panel 202, and a sound insulation panel 203. The insulation panel 202 is located near the double-layer vacuum glass 105. The inner wall panel 2 is formed by pressing the sound insulation panel 203, the insulation panel 202, and the decorative panel together. The outer wall panel 3 includes a waterproof panel 301 and an insulation panel 302. The outer wall panel 3 is formed by pressing the waterproof panel 301 and the insulation panel 302 together. A wave-shaped decorative structure 303 is formed on the waterproof panel 301.

[0034] The prefabricated frame 1 features a hollow structure in the middle, within which double-layered vacuum glass 105 is embedded. The double-layered vacuum glass 105 is constructed by creating a vacuum between two panes of glass. This vacuum layer significantly reduces heat conduction, effectively improving the thermal insulation performance of the wall. Simultaneously, the vacuum glass also provides excellent sound insulation, significantly reducing the interference of external noise on the indoor environment.

[0035] The inner wall panel 2, serving as both interior decoration and insulation, is composed of multiple layers of composite materials. It includes a decorative panel 201, an insulation board 202, and a sound insulation board 203. The insulation board 202 utilizes high-efficiency insulation materials such as polystyrene board or rock wool board, while the sound insulation board 203 can be made of thick perforated gypsum board with a 5mm thick polyester fiber sound-absorbing cotton adhered to the back, significantly improving the quality of the indoor acoustic environment. Installed near the double-glazed vacuum glass 105, it further prevents heat conduction, enhancing the indoor insulation effect. The sound insulation board 203 uses sound-absorbing materials, such as polyester fiber sound-absorbing panels, effectively reducing the transmission of sound between indoors and outdoors. The inner wall panel 2 uses an epoxy resin adhesive bonding process to tightly bond the sound insulation board 203, the insulation board 202, and the decorative panel together, forming a composite structure.

[0036] The outer wall panel 3 is primarily responsible for waterproofing and thermal insulation. It consists of a waterproof panel 301 and an insulation board 302. The waterproof panel 301 uses materials with excellent waterproof performance, such as fiber cement board or profiled metal sheet, and has a wavy decorative structure 303 on its surface. This wavy design enhances the panel's aesthetics. The insulation board 302 uses a similar high-efficiency insulation material as the insulation board 202 of the inner wall panel 2, further improving the overall thermal insulation performance of the wall. The outer wall panel 3 also uses a pressing process to firmly bond the waterproof panel 301 and the insulation board 302 together.

[0037] Reference Figure 3 The prefabricated frame 1 has a U-shaped structure. The inner and outer sides of the prefabricated frame 1 have snap-fit ​​grooves 101 around their perimeter. The inner wall panel 2 and the outer wall panel 3 form snap-fit ​​outer edges 204 that snap into the snap-fit ​​grooves 101. The snap-fit ​​outer edges 204 are perpendicular to the surface of the inner wall panel 2 or the outer wall panel. A sealing strip is provided within the snap-fit ​​grooves 101. This snap-fit ​​design makes the connection between the wall panel and the frame tighter and the installation process more convenient. To further improve waterproofing and sound insulation performance, a sealing strip is provided within the snap-fit ​​grooves 101. The sealing strip is made of rubber or silicone material and can effectively fill the gaps between the wall panel and the frame.

[0038] Reference Figure 8 The cross section of the horizontal keel 5 is an I-shaped structure. The horizontal keel 5 and the vertical keel 4 are fixedly installed. The prefabricated frame 1 is set in the grid-like support structure formed by the vertical keel 4 and the horizontal keel 5.

[0039] Reference Figure 9 The vertical keel 4 has an I-shaped cross-section, and the four corners of the prefabricated frame 1 have mounting grooves 102, with the openings of the mounting grooves 102 facing the horizontal keel 5.

[0040] The horizontal keel 5 has an I-shaped cross-section, which effectively distributes horizontal forces and ensures the wall remains stable under wind or seismic forces. The vertical keel 4 also has an I-shaped cross-section, further enhancing the wall's vertical load-bearing capacity. It also encases the prefabricated frame 1, resulting in a more compact structure.

[0041] Reference Figure 3 and Figure 9 The prefabricated frame 1 has a limiting protrusion 103 facing the vertical keel 4. The limiting protrusion 103 is formed on the outer side of the left and right frames of the prefabricated frame 1. The vertical keel 4 has a limiting groove 401 that cooperates with the limiting protrusion.

[0042] Reference Figure 3 and Figure 8 The prefabricated frame 1 has a limiting protrusion 104 facing the horizontal keel 5. The limiting protrusion 104 is formed on the outer side of the upper and lower frame of the prefabricated frame 1. The horizontal keel 5 has a limiting groove 501 that cooperates with the limiting protrusion 104.

[0043] Reference Figure 4 and Figure 6 The inner wall panel 2 and the outer wall panel 3 have fixed outer edges 205, which are attached to the outer frame of the prefabricated frame 1. The inner wall panel 2 and the outer wall panel 3 are fixedly connected to the prefabricated frame 1 through the fixed outer edges 205.

[0044] The four corners of the prefabricated frame 1 have mounting grooves 102, with the openings of the mounting grooves 102 facing the horizontal keel 5. This design facilitates the installation and connection between the prefabricated frame 1 and the horizontal keel 5. Simultaneously, the cooperation of these limiting protrusions and grooves ensures precise positioning of the prefabricated frame 1 during installation, improving the stability of the entire wall structure. The inner wall panel 2 and the outer wall panel 3 also form fixed outer edges 205, which fit snugly against the outer frame of the prefabricated frame 1. The inner wall panel 2 and the outer wall panel 3 are fixedly connected to the prefabricated frame 1 via the fixed outer edges 205, which can be secured using bolts or rivets. This dual fixing method, namely snap-fit ​​and fixing with the fixed outer edges 205, greatly enhances the connection strength between the wall panel and the frame, ensuring that the wall will not loosen or deform during long-term use.

[0045] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A BIM-based prefabricated building energy-saving and emission-reducing system, characterized in that, The application relates to a prefabricated frame, which comprises a plurality of mutually spliced prefabricated frames, inner side wallboards and outer side wallboards arranged on the two sides of the prefabricated frames, vertical keels and horizontal keels for connecting the prefabricated frames, wherein the vertical keels and the horizontal keels form a grid-shaped support structure, the prefabricated frame is provided with a cavity, double-layer vacuum glass is embedded in the cavity of the prefabricated frame, and the inner side wallboards and the outer side wallboards are detachably arranged on the two sides of the prefabricated frame.

2. The BIM-based prefabricated building energy-saving emission reduction system according to claim 1, characterized in that, The inner side wallboard comprises a decorative panel I, a heat insulation board I and a sound insulation board, the heat insulation board I is close to the double-layer vacuum glass, the inner side wallboard is formed by pressing the sound insulation board, the heat insulation board I and the decorative panel, the outer side wallboard comprises a waterproof panel and a heat insulation board II, and the outer side wallboard is formed by pressing the waterproof panel and the heat insulation board II.

3. The BIM-based prefabricated building energy-saving emission reduction system according to claim 1, characterized in that, The prefabricated frame is of a mouth-shaped structure, the inner side wallboard and the outer side wallboard are provided with clamping outer edges which are clamped in clamping grooves arranged on the four sides of the prefabricated frame, the clamping outer edges are perpendicular to the plate surfaces of the inner side wallboard or the outer side wallboard, and sealing strips are arranged in the clamping grooves.

4. The BIM-based prefabricated building energy-saving and emission-reducing system according to claim 1, characterized in that, The horizontal keel is of an I-shaped structure, the horizontal keel is fixedly arranged on the vertical keel, and the prefabricated frame is arranged in the grid-shaped support structure formed by the vertical keel and the horizontal keel.

5. The BIM-based prefabricated building energy-saving and emission-reducing system according to claim 4, characterized in that, The vertical keel is of an I-shaped structure, the four corners of the prefabricated frame are provided with mounting grooves, and the mounting grooves are open towards the horizontal keel.

6. The BIM-based prefabricated building energy-saving and emission-reducing system according to claim 5, characterized in that, The prefabricated frame is provided with a limiting protrusion I which faces the vertical keel, the limiting protrusion I is arranged on the outer sides of the left and right frame bodies of the prefabricated frame, and the vertical keel is provided with a limiting groove I which cooperates with the limiting protrusion I.

7. The BIM-based prefabricated building energy-saving and emission-reducing system according to claim 6, characterized in that, The prefabricated frame is provided with a limiting protrusion II which faces the horizontal keel, the limiting protrusion II is arranged on the outer sides of the upper and lower frame bodies of the prefabricated frame, and the horizontal keel is provided with a limiting groove II which cooperates with the limiting protrusion II.

8. The BIM-based prefabricated building energy-saving and emission-reducing system according to claim 1, characterized in that, The inner side wallboard and the outer side wallboard are provided with fixed outer edges which are attached to the outer frame of the prefabricated frame, and the inner side wallboard and the outer side wallboard are fixedly connected with the prefabricated frame through the fixed outer edges.

9. The BIM-based prefabricated building energy-saving and emission-reducing system according to claim 2, characterized in that, The waterproof panel is provided with a wave-shaped decorative structure.

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