Fabricated building waterproof node structure based on BIM

By employing a design in the waterproof joint structure of prefabricated buildings using connecting frames, fixing plates, support mechanisms, and transmission components, the problem of reduced sealing ring adhesion was solved, resulting in better sealing performance and construction efficiency, extended building life, and reduced noise interference.

CN223893614UActive Publication Date: 2026-02-10SUZHOU SHIDAI ENG CONSULTING SUPERVISION CO LTD
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Patent Information

Application Number
CN202520464318.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-02-10
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

In existing BIM-based prefabricated building waterproofing joint structures, the reduced adhesion between the sealing ring and the floor slab leads to a decrease in the sealing and waterproofing effect after long-term use.

Method used

The structure includes a connecting frame, a fixing plate, a support mechanism, a transmission component, and a sealing ring. Through sliding and transmission mechanisms, the sealing ring is made to fit tightly with the annular groove, thereby enhancing the sealing effect.

Benefits of technology

It improves sealing and waterproofing, reduces construction difficulty and risk, extends building life, reduces maintenance costs, and creates a quiet environment for use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building structures, and discloses a BIM-based fabricated building waterproof joint structure which comprises two building floor slab stress plates, the right side of one building floor slab stress plate is fixedly connected with a connecting frame stress plate, and the upper end and the lower end of the connecting frame stress plate are each fixedly connected with two fixing mechanism stress plates. The left side of one building floor slab stress plate is fixedly connected with a fixing plate stress plate, the left side of the other building floor slab stress plate is fixedly connected with a fixing plate stress plate, the left side of the interior of the connecting frame stress plate is fixedly connected with two supporting mechanism stress plates, the interior of the connecting frame stress plate is slidably connected with a sealing ring stress plate, and each supporting mechanism stress plate comprises a spring stress plate. According to the utility model, the transmission column can abut against the sliding frame to slide until the transmission column abuts against the sealing ring, and the sealing ring deforms and is located in a closed space, so that the sealing ring can be attached to the annular groove more tightly, and the sealing and waterproof effects are further improved.
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Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to the construction of waterproof joints in prefabricated buildings based on BIM. Background Technology

[0002] Waterproofing joints in prefabricated buildings refer to the waterproofing measures implemented at the joints of components to prevent moisture from penetrating the building's interior. These measures typically include the application of materials such as sealants, waterproof coatings, and waterproof membranes, as well as special structural designs such as tongue-and-groove joints and grooved joints. BIM technology provides a three-dimensional, visualized design environment, enabling designers to design waterproofing joints more precisely. Through the BIM model, designers can intuitively see the specific location, shape, and dimensions of the waterproofing joints, allowing for more rational design and optimization.

[0003] Install waterproof steel sheets, using galvanized steel plates, and fix them by welding or bolting, ensuring their width and overlap length meet specifications. Lay weather-resistant sealing tape on the outside of the waterproof steel sheets, ensuring a tight fit. Fill the gap between the two floor slabs with sealing rings, using the sealing rings to eliminate any gaps between the two floor slabs.

[0004] In existing technologies, some BIM-based prefabricated building waterproofing joint structures rely on sealing rings for waterproofing during use. However, due to prolonged use, the adhesion between the sealing rings and the mounting surface decreases, causing them to adhere to the floor slab and reducing the waterproofing effect. Therefore, to address these shortcomings, a BIM-based prefabricated building waterproofing joint structure is proposed to solve the aforementioned problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a BIM-based waterproof joint structure for prefabricated buildings, aiming to improve the problem that some existing BIM-based waterproof joint structures for prefabricated buildings may experience reduced sealing and waterproofing effects due to prolonged use, as the sealing ring may not adhere to the floor slab.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The BIM-based prefabricated building waterproofing node structure includes two building floor slab load-bearing plates. One of the building floor slab load-bearing plates has a connecting frame load-bearing plate fixedly connected to its right side. The upper and lower ends of the connecting frame load-bearing plate are both fixedly connected to two fixing mechanism load-bearing plates. The other building floor slab load-bearing plate has a fixing plate load-bearing plate fixedly connected to its left side. The inner left side of the connecting frame load-bearing plate has two supporting mechanism load-bearing plates fixedly connected to it. The inner side of the connecting frame load-bearing plate has a sealing ring load-bearing plate slidably connected to it. Both supporting mechanism load-bearing plates include spring load-bearing plates. The left ends of the two spring load-bearing plates are respectively fixedly connected to the inner walls of the upper and lower ends of the connecting frame load-bearing plate. The right end of the spring load-bearing plate is fixedly connected to a sliding frame load-bearing plate. The sliding frame load-bearing plate has an inclined opening load-bearing plate inside. The inner wall of the sliding frame load-bearing plate has a transmission component load-bearing plate slidably connected to it. The two transmission component load-bearing plates have load-bearing plates slidably connected to each other on their adjacent sides. The upper and lower ends of the connecting frame load-bearing plate have cavity load-bearing plates.

[0008] As a further description of the above technical solution:

[0009] The transmission component force plate includes a transmission column force plate, the outside of which is slidably connected to the inside of the inclined opening force plate, and the outside of which is fixedly connected to a transmission plate force plate.

[0010] As a further description of the above technical solution:

[0011] Each of the multiple fixed mechanism load-bearing plates includes a connecting plate load-bearing plate. The adjacent sides of the multiple connecting plate load-bearing plates are respectively fixedly connected to the upper and lower ends of the connecting frame load-bearing plate by two bolt load-bearing plates. The distant sides of the multiple connecting plate load-bearing plates are respectively fixedly connected to the adjacent sides of the two building floor slab load-bearing plates.

[0012] As a further description of the above technical solution:

[0013] The fixed plate has an annular groove on its outer side, and the sealing ring is slidably connected to the inside of the annular groove.

[0014] As a further description of the above technical solution:

[0015] The building floor slab includes a load-bearing layer load-bearing plate, the outside of which is fixedly connected to the inside of the building floor slab load-bearing plate, a waterproof layer load-bearing plate is fixedly connected to the rear end of the load-bearing layer load-bearing plate, and a sound insulation layer load-bearing plate is fixedly connected to the rear end of the waterproof layer load-bearing plate.

[0016] As a further description of the above technical solution:

[0017] The load-bearing layer is made of steel truss floor decking, the waterproof layer is made of high-density polyethylene, and the sound insulation layer is made of ceramsite concrete.

[0018] As a further description of the above technical solution:

[0019] The outer side of the transmission plate force-bearing plate is slidably connected to the inside of the sliding frame force-bearing plate, and the outer sides of the two transmission plate force-bearing plates are respectively slidably connected to the inside of the upper and lower ends of the connecting frame force-bearing plate.

[0020] As a further description of the above technical solution:

[0021] The upper and lower ends of the left side of the fixed plate force plate are fixedly connected to the right side of the two force plates respectively. The outer sides of the two force plates are slidably connected to the inner sides of the upper and lower ends of the connecting frame force plate respectively. The right ends of the two sliding frame force plates are slidably connected to the inner sides of the upper and lower ends of the sealing ring force plate respectively.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the sliding of the fixed plate will abut against the sealing ring, causing the sealing ring to deform until it is engaged inside the annular groove to form a sealed space, thereby achieving a preliminary waterproof sealing effect. Then, the transmission column can abut against the sliding frame and slide until it abuts against the sealing ring. At this time, the sealing ring will deform and be in a sealed space, allowing the sealing ring to fit more tightly against the annular groove, thereby further increasing the sealing and waterproof effect.

[0024] 2. In this utility model, the construction difficulty and risk are reduced by using steel truss floor decking for the load-bearing layer, the floor decking can be installed quickly and accurately, and the construction period is significantly shortened. In terms of building performance, the high-density polyethylene material of the waterproof layer is waterproof, corrosion-resistant and durable, and can fully waterproof, extend the building life, reduce maintenance costs and protect interior decoration. The ceramsite concrete of the sound insulation layer is lightweight, effectively blocks noise, creates a quiet space and improves the user experience. Attached Figure Description

[0025] Figure 1 This is a three-dimensional view of the waterproof joint structure of the prefabricated building based on BIM proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the connecting plate for the BIM-based prefabricated building waterproof node structure proposed in this utility model.

[0027] Figure 3 This is a structural schematic diagram of the fixing plate for the prefabricated building waterproof node structure based on BIM proposed in this utility model.

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 This is a schematic diagram of the sliding frame for the BIM-based prefabricated building waterproofing node construction proposed in this utility model.

[0030] Figure 6 This is a structural diagram of the load-bearing layer of the prefabricated building waterproof node structure based on BIM proposed in this utility model.

[0031] Legend:

[0032] 1. Building floor slab; 11. Load-bearing layer; 12. Waterproof layer; 13. Sound insulation layer;

[0033] 2. Connecting frame;

[0034] 3. Fixing mechanism; 31. Connecting plate; 32. Bolt;

[0035] 4. Fixing plate; 5. Annular groove;

[0036] 6. Support mechanism; 61. Spring; 62. Sliding frame; 63. Inclined opening; 64. Transmission assembly; 6401. Transmission column; 6402. Transmission plate; 65. Force-bearing plate; 66. Cavity;

[0037] 7. Sealing ring. Detailed Implementation

[0038] 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.

[0039] Reference Figure 1 , Figure 2 and Figure 6This utility model provides an embodiment of a BIM-based waterproof node structure for prefabricated buildings, comprising two building floor slabs 1, which serve to support and divide space in the prefabricated building. Each building floor slab 1 includes a load-bearing layer 11, made of reinforced steel truss floor decking. Reinforced steel truss floor decking is characterized by high strength and high load-bearing capacity, providing solid support for the entire building floor slab 1. The load-bearing layer 11 is externally fixedly connected to the interior of the building floor slab 1, ensuring that it will not shift or loosen during building use. A waterproof layer 12 is fixedly connected to the rear end of the load-bearing layer 11. The waterproof layer 12 is made of high-density polyethylene, which has excellent waterproof performance, corrosion resistance, and durability, providing reliable waterproof protection for the building. A sound insulation layer 13 is fixedly connected to the rear end of the waterproof layer 12. The sound insulation layer 13 can effectively reduce the interference of external noise on the interior space of the building. The sound insulation layer 13 is made of ceramsite concrete, which has the advantages of being lightweight, sound-insulating, and heat-insulating. It can effectively absorb and block the transmission of sound, creating a quiet interior environment for the building. A connecting frame 2 is fixedly connected to the right side of one of the building floor slabs 1, providing support for the connecting frame 2. Two fixing mechanisms 3 are fixedly connected to both the upper and lower ends of the connecting frame 2. The fixing mechanisms 3 are used to connect the two building floor slabs 1.

[0040] Reference Figures 3 to 5 Each of the multiple fixing mechanisms 3 includes a connecting plate 31. The adjacent sides of the multiple connecting plates 31 are respectively fixed to the upper and lower ends of the connecting frame 2 by two bolts 32. The connecting plates 31 are fixed to the connecting frame 2 by bolts 32, which is convenient to disassemble and reliable, ensuring the connection strength between the connecting plates 31 and the connecting frame 2. The distant sides of the multiple connecting plates 31 are respectively fixed to the adjacent sides of two building floor slabs 1, tightly connecting the connecting frame 2 and the building floor slabs 1 together, making the entire waterproof node structure a whole. A fixing plate 4 is fixedly connected to the left side of another building floor slab 1, which is adapted to the connecting frame 2. An annular groove 5 is opened on the outside of the fixing plate 4, creating a movable space on the outside of the fixing plate 4. Two support mechanisms 6 are fixedly connected to the left side of the inside of the connecting frame 2. Both support mechanisms 6 include springs 61, and the left ends of the two springs 61 are respectively fixedly connected to the inner walls of the upper and lower ends of the connecting frame 2. By fixing the springs 61, the springs 61 can be evenly stressed.

[0041] A sliding frame 62 is fixedly connected to the right end of spring 61. During sliding, the sliding frame 62 compresses spring 61, allowing spring 61 to store elastic potential energy, which in turn provides a force in the opposite direction to the sliding frame 62 for resetting. An inclined opening 63 is provided inside the sliding frame 62, creating a space for movement. A transmission assembly 64 is slidably connected to the inner wall of the sliding frame 62, transmitting the sliding force to the sliding frame 62. The transmission assembly 64 includes a transmission column 6401, which is slidably connected to the inside of the inclined opening 63. Through the inclined opening 63, the transmission column 6401 transmits the vertical sliding force to the sliding frame 62, enabling it to slide horizontally. A transmission plate 6402 is fixedly connected to the outside of the transmission column 6401, driving the transmission column 6401 to slide synchronously. The transmission plate 6402 is slidably connected to the inside of the sliding frame 62, ensuring stable sliding. The two transmission plates 6402 are slidably connected to the upper and lower ends of the connecting frame 2, respectively. The connection frame 2 restricts the transmission plates 6402 to slide stably.

[0042] Two transmission components 64 are slidably connected to adjacent sides of force-bearing plates 65, which transmit sliding force to the transmission components 64. The upper and lower ends of the left side of the fixing plate 4 are fixedly connected to the right sides of the two force-bearing plates 65, respectively. During sliding, the fixing plate 4 pushes the two force-bearing plates 65 to slide synchronously. The exterior of the two force-bearing plates 65 are slidably connected to the interior of the upper and lower ends of the connecting frame 2, allowing for stable sliding. Cavities 66 are provided at both the upper and lower ends of the connecting frame 2, creating a movable space inside. A sealing ring 7 is slidably connected inside the connecting frame 2, sealing the gap between the connecting frame 2 and the fixing plate 4 to prevent water penetration. The right ends of the two sliding frames 62 are slidably connected to the interior of the upper and lower ends of the sealing ring 7. After sliding into the sealing ring 7, the sliding frame 62 slides in a compressive manner. The sliding cooperation between the sealing ring 7 and the annular groove 5 further enhances the sealing effect, enabling the waterproof joint structure to effectively prevent water penetration and ensure the building's waterproof performance.

[0043] Working principle: When connecting two building floor slabs 1, one floor slab 1 drives the connecting frame 2 to engage with the fixing plate 4 on the other floor slab 1. After the connecting plates 31 on the two floor slabs 1 abut against each other, bolts 32 pass through the connecting plates 31 and fix them to the connecting frame 2, thus completing the connection of the two floor slabs 1. During the connection process, as the fixing plate 4 slides, it abuts against the sealing ring 7, causing the sealing ring 7 to deform until it engages inside the annular groove 5, forming a sealed space, thereby achieving a waterproof sealing effect. While the fixed plate 4 slides, it also drives the force plate 65 to slide. When the force plate 65 slides against the transmission plate 6402, the two transmission plates 6402 will slide to the opposite side and drive the transmission column 6401 to slide synchronously. The transmission column 6401 will slide in the inclined opening 63 inside the sliding frame 62, so that the transmission column 6401 can slide against the sliding frame 62 until it hits the sealing ring 7. At this time, the sealing ring 7 will deform and be in a sealed space, so that the sealing ring 7 can fit more tightly with the annular groove 5, thereby increasing the sealing and waterproofing effect.

[0044] As the main supporting structure of the building floor slab 1, the load-bearing layer 11, with its high strength and load-bearing capacity due to the steel truss floor slab, bears the weight of the entire building floor slab 1, providing stable support for subsequent construction and building use. During use, the waterproof layer 12, made of high-density polyethylene, possesses excellent waterproof performance, corrosion resistance, and durability, effectively preventing external moisture from penetrating into the building interior and preventing structural damage and dampness in interior decoration caused by leakage. Furthermore, the sound insulation layer 13, made of lightweight, sound-insulating, and heat-insulating ceramsite concrete, absorbs and blocks external noise, effectively reducing both traffic noise and noise from adjacent spaces, creating a quiet and comfortable environment inside the building and ensuring the functional use of the building space.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A BIM-based prefabricated building waterproofing node structure, characterized in that: It includes two building floor slabs (1), one of which has a connecting frame (2) fixedly connected to the right side, and two fixing mechanisms (3) fixedly connected to both the upper and lower ends of the connecting frame (2). The other building floor slab (1) has a fixing plate (4) fixedly connected to the left side, and two support mechanisms (6) fixedly connected to the left side of the inside of the connecting frame (2). A sealing ring (7) is slidably connected inside the connecting frame (2). Both of the support mechanisms (6) include springs (61). The left ends of the two springs (61) are fixedly connected to the inner walls of the upper and lower ends of the connecting frame (2). The right end of the springs (61) is fixedly connected to a sliding frame (62). An inclined opening (63) is provided inside the sliding frame (62). A transmission component (64) is slidably connected to the inner wall of the sliding frame (62). A force plate (65) is slidably connected to the adjacent side of the two transmission components (64). A cavity (66) is provided at both the upper and lower ends of the connecting frame (2).

2. The BIM-based prefabricated building waterproofing node structure according to claim 1, characterized in that: The transmission assembly (64) includes a transmission column (6401), the outside of which is slidably connected to the inside of the inclined opening (63), and a transmission plate (6402) is fixedly connected to the outside of the transmission column (6401).

3. The BIM-based prefabricated building waterproofing node structure according to claim 1, characterized in that: Each of the multiple fixing mechanisms (3) includes a connecting plate (31). The adjacent sides of the multiple connecting plates (31) are respectively fixedly connected to the upper and lower ends of the connecting frame (2) by two bolts (32). The distant sides of the multiple connecting plates (31) are respectively fixedly connected to the adjacent sides of the two building floor slabs (1).

4. The BIM-based prefabricated building waterproofing node structure according to claim 1, characterized in that: The fixed plate (4) has an annular groove (5) on its outside, and the sealing ring (7) is slidably connected to the inside of the annular groove (5).

5. The BIM-based prefabricated building waterproofing node structure according to claim 1, characterized in that: The building floor slab (1) includes a load-bearing layer (11), the outside of which is fixedly connected to the inside of the building floor slab (1), a waterproof layer (12) is fixedly connected to the rear end of the load-bearing layer (11), and a sound insulation layer (13) is fixedly connected to the rear end of the waterproof layer (12).

6. The BIM-based prefabricated building waterproofing node structure according to claim 5, characterized in that: The material of the bearing layer (11) is steel truss floor deck, the material of the waterproof layer (12) is high-density polyethylene, and the material of the sound insulation layer (13) is ceramsite concrete.

7. The BIM-based prefabricated building waterproofing node structure according to claim 2, characterized in that: The transmission plate (6402) is slidably connected to the inside of the sliding frame (62) on the outside, and the two transmission plates (6402) are slidably connected to the inside of the upper and lower ends of the connecting frame (2) respectively.

8. The BIM-based prefabricated building waterproofing node structure according to claim 1, characterized in that: The upper and lower ends of the left side of the fixed plate (4) are fixedly connected to the right side of the two force plates (65), the outside of the two force plates (65) are slidably connected to the inside of the upper and lower ends of the connecting frame (2), and the right ends of the two sliding frames (62) are slidably connected to the inside of the upper and lower ends of the sealing ring (7).