A multi-layer waterproof structure for the roof support node of an underground parking garage and its construction method

Abstract

This invention discloses a multi-layered waterproof structure and construction method for a roof support node in an underground parking garage. The structure includes a secondary waterproof honeycomb isolation mechanism. The roof support node body is located at the bottom of the secondary waterproof honeycomb isolation mechanism, and a primary waterproof buffer composite pad is located at the top of the roof support node body. The garage ceiling is located on top of the primary waterproof buffer composite pad. This multi-layered waterproof structure and construction method for the roof support node in an underground parking garage forms a double-layered, multi-level waterproof system by setting up a primary waterproof buffer composite pad and a secondary waterproof honeycomb isolation mechanism. The alternating rubber pads and metal sheets, along with limiting columns, tightly adhere to the garage ceiling, effectively blocking leakage, condensation, and capillary seepage of groundwater from the underground parking garage roof slab. This blocks the downward spread of seepage from the source and prevents long-term contact of water vapor with the steel structure components, avoiding corrosion, aging, and mechanical performance degradation of the metal structure.

Description

Technical Field

[0001] This invention relates to the field of building construction, specifically to a multi-layered waterproof structure for the roof support node of an underground parking garage and its construction method. Background Technology

[0002] During building construction, temporary areas such as construction roads, material storage yards, or large equipment and their foundations are usually set up above the basement or garage roof. When these areas are used, they will generate construction loads that exceed the roof's bearing capacity, affecting structural stability and construction safety. Therefore, in cases where the load exceeds the roof's design load, the conditions need to be adjusted or corresponding backfilling measures need to be taken to ensure safety.

[0003] Regarding patents related to garage roof supports, a search revealed Chinese patent CN220889641U, which discloses an adjustable roof support structure for underground garages. The patent includes a steel structure support, an adjustable structure, and a roof beam. The steel structure support is located on the floor, the adjustable structure is located on top of the steel structure support, and the roof beam is located on the adjustable structure and contacts the ceiling. The adjustable structure includes a top plate, a bottom plate, a limiting rod, and a roof support device. The top plate and bottom plate are located at the upper and lower ends of the roof support device, respectively. The bottom plate is located on the top surface of the steel structure support and below the roof beam, contacting it. The limiting rod is connected to the top plate and bottom plate, and its lower end contacts the steel structure support.

[0004] While the aforementioned device is adaptable to different loads and can accommodate various temporary spaces on the ceiling, offering better adaptability, in actual use, the lack of multiple waterproofing structures between the top support nodes and the ceiling of the underground garage makes the underground garage roof prone to leakage, condensation, water droplets, and capillary seepage of groundwater. Furthermore, the absence of waterproof barriers between the top support nodes and the ceiling allows seepage to flow down the top beams and steel supports, polluting the garage floor, corroding the steel structure, and causing strength reduction and decreased load-bearing capacity. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-layered waterproof structure for the roof support node of an underground parking garage and its construction method, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a multi-layered waterproof structure for the roof support node of an underground parking garage is provided, including a secondary waterproof honeycomb isolation mechanism. The secondary waterproof honeycomb isolation mechanism has a roof support node body at its bottom and a primary waterproof buffer composite pad at its top. The primary waterproof buffer composite pad is provided with a parking garage ceiling. The secondary waterproof honeycomb isolation mechanism includes a support base fixed to the top of the roof support node body, and the support base is covered with a honeycomb single water-blocking seat. The surface of the honeycomb single water-blocking seat abuts against the bottom of the primary waterproof buffer composite pad, and the primary waterproof buffer composite pad is attached to the surface of the parking garage ceiling.

[0007] Furthermore, the support base has a circular structure and multiple sets of stiffening plates at the bottom. The stiffening plates have a trapezoidal structure and are equidistantly distributed along the connection position between the top support node body and the support base. The top support node body and the support base are reinforced and supported by the multiple sets of stiffening plates.

[0008] Furthermore, the honeycomb single water-blocking seat has a regular hexagonal structure, and a matching seat is provided on the honeycomb single water-blocking seat. At the same time, a honeycomb single water-blocking seat is provided on the outer side of the matching seat. Multiple sets of the honeycomb single water-blocking seats are connected together to form a honeycomb waterproof structure.

[0009] Furthermore, each of the multiple sets of honeycomb single water-blocking seats is provided with a water-blocking step, and the multiple sets of water-blocking steps are combined together to form a water-blocking channel at their connection position. The secondary waterproof honeycomb isolation mechanism also includes a water-blocking isolation bushing, and the water-blocking isolation bushing is provided with multiple sets of step filling pads. At the same time, the bottom of each of the multiple sets of step filling pads is provided with an interference filling pad.

[0010] Furthermore, the interference filler is adapted to the size of the water-blocking channel, and the interference filler fills the water-blocking channel. The stepped filler covers the outside of multiple sets of assembled seats. After multiple sets of honeycomb single water-blocking seats are spliced ​​together, they are waterproofed once by the interference filler and then waterproofed twice by the stepped filler.

[0011] Furthermore, triangular water-blocking grooves are provided on each of the multiple sets of stepped filling pads, and multiple sets of screw holes are provided on the honeycomb single water-blocking seat. At the same time, three sets of through holes are provided in the triangular water-blocking grooves, and fixing bolts are screwed into the screw holes through the through holes. The triangular water-blocking grooves are filled with triangular water-blocking pads, and connecting rings are provided on the outer side of the triangular water-blocking pads. At the same time, multiple sets of triangular water-blocking pads are equidistantly arranged along the circumference of the connecting rings.

[0012] Furthermore, the secondary waterproof honeycomb isolation mechanism also includes a matching inner socket fixed on the support base. The matching base also has a matching space, and the size of the matching space and the matching inner socket are compatible. At the same time, the matching inner socket is inserted into the matching space. Both the matching space and the matching inner socket are triangular in structure. The support base is aligned with the matching space and the matching inner socket at the bottom of the honeycomb single water-blocking base and then fixed by high-strength bolts.

[0013] Furthermore, the primary waterproof buffer composite pad is disposed between multiple sets of secondary waterproof honeycomb isolation mechanisms and the garage ceiling. The primary waterproof buffer composite pad includes multiple sets of rubber pads and metal sheets disposed between the secondary waterproof honeycomb isolation mechanisms and the garage ceiling, with the multiple sets of rubber pads and metal sheets distributed alternately.

[0014] Furthermore, multiple sets of limiting posts are interspersed between the multiple sets of rubber pads and metal sheets, and the multiple sets of limiting posts are disposed through the rubber pads and metal sheets. The thickness of the rubber pads is less than the thickness of the metal sheets, and the outer sides of the rubber pads and metal sheets are wrapped with rubber bushings.

[0015] A construction method for a multi-layered waterproof structure of a roof support node in an underground parking garage includes the following steps:

[0016] S1: Weld multiple sets of trapezoidal stiffening plates at equal intervals to the top of the top support node body, and then firmly weld the circular support base to the top support node body through stiffening plates to complete the installation and fixing of the bottom base of the secondary waterproof honeycomb isolation mechanism.

[0017] S2: Arrange the regular hexagonal honeycomb single water-blocking bases in sequence to make the matching space of the honeycomb single water-blocking bases accurately connected and aligned with the triangular matching sockets on the top of the support base. Secure each honeycomb single water-blocking base by passing high-strength bolts through the screw holes, so that the water-blocking steps of adjacent honeycomb single water-blocking bases are spliced ​​together to form a complete water-blocking channel.

[0018] S3: Fit the water-blocking isolation liner to the outside of the honeycomb single water-blocking seat, so that the interference filling pad is tightly embedded in the water-blocking channel, the stepped filling pad covers the outside of the mounting seat, and at the same time install the connecting ring and the triangular water-blocking pad, so that the triangular water-blocking pad is embedded in the triangular water-blocking groove to complete the multi-level sealing and water-blocking construction.

[0019] S4: Lay a primary waterproof buffer composite pad on the top surface of the secondary waterproof honeycomb isolation mechanism, and arrange rubber pads and metal sheets in a staggered manner. Use limiting columns to fix them through and limit them. After wrapping the outside with a rubber bushing, lift it back to the top to support the node body, so that the primary waterproof buffer composite pad fits tightly against the bottom surface of the garage ceiling, completing the overall multi-layer waterproof structure construction.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This solution forms a double-layer, multi-level waterproof system by setting up a primary waterproof buffer composite pad and a secondary waterproof honeycomb isolation mechanism. The alternating rubber pads and metal sheets, together with the limiting columns, are tightly attached to the garage ceiling, effectively blocking leakage, condensation, and capillary seepage of groundwater from the underground garage roof. This blocks the downward spread of seepage from the source, preventing water from flowing down the back support node and polluting the garage floor. At the same time, it isolates water vapor from long-term contact with the steel structure components, preventing the metal structure from rusting, aging, and deteriorating mechanical properties, thus ensuring the long-term structural strength and vertical load-bearing stability of the back support.

[0022] 2. This solution relies on multiple sets of honeycomb single water-blocking seats to form a honeycomb waterproof structure, which, together with water-blocking steps, forms a water-blocking channel. Combined with interference-filled pads, step-filled pads, and triangular water-blocking pads, multiple gaps are sealed and layered waterproofing is achieved. With stiffening plates and interlocking structures, the connection strength and waterproof sealing of nodes are improved. Without affecting the lifting force of the back-top support and the fixed fitting function of the nodes, the waterproof durability in the humid underground garage environment is comprehensively improved. This avoids the risk of reduced load-bearing capacity and structural instability of the support components due to corrosion, and significantly extends the service life of the overall back-top support nodes. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a side view of the present invention;

[0025] Figure 3 This is a bottom view of the present invention;

[0026] Figure 4 This is a schematic diagram of the main structure of the top support node of the present invention;

[0027] Figure 5 This is a schematic diagram of the connecting ring and its connection structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the water-blocking isolation bushing and its connection structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the honeycomb single water-blocking base and its connection structure of the present invention;

[0030] Figure 8 This is a view of the internal structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the mounting base and its connection structure according to the present invention;

[0032] Figure 10 This is a schematic diagram of the mounting space, the inner socket, and their connection structure of the present invention;

[0033] Figure 11 This is a schematic diagram of the structure of the waterproof buffer composite pad of the present invention;

[0034] Figure 12 This is a schematic diagram of the rubber pad, metal sheet, and their connection structure of the present invention.

[0035] The diagram is labeled as follows: 100, Secondary waterproof honeycomb isolation mechanism; 11, Support base; 12, Reinforcing plate; 13, Honeycomb single water-blocking base; 131, Water-blocking step; 14, Mounting base; 15, Mounting space; 16, Mounting internal socket; 17, Water-blocking channel; 18, Water-blocking isolation bushing; 181, Step filling pad; 1811, Interference filling pad; 182, Triangular water-blocking groove; 183, Screw hole; 19, Connecting ring; 191, Triangular water-blocking pad; 200, Garage ceiling; 300, Primary waterproof buffer composite pad; 31, Rubber pad; 32, Metal sheet; 33, Limiting post; 400, Top support node body. Detailed Implementation

[0036] Please see Figures 1-12 This invention provides a multi-layer waterproof structure and construction method for a roof support node in an underground parking garage. It includes a secondary waterproof honeycomb isolation mechanism 100, a roof support node body 400 at the bottom of the secondary waterproof honeycomb isolation mechanism 100, and a primary waterproof buffer composite pad 300 at the top of the roof support node body 400. A parking garage ceiling 200 is also provided on the primary waterproof buffer composite pad 300. The secondary waterproof honeycomb isolation mechanism 100 includes a support base 11 fixed to the top of the roof support node body 400, and a honeycomb single water-blocking seat 13 covering the support base 11. The surface of the honeycomb single water-blocking seat 13 abuts against the bottom of the primary waterproof buffer composite pad 300, and the primary waterproof buffer composite pad 300 adheres to the surface of the parking garage ceiling 200.

[0037] In a preferred embodiment, the support base 11 has a circular structure, and the bottom of the support base 11 is provided with multiple sets of stiffening plates 12. The stiffening plates 12 have a trapezoidal structure. The multiple sets of stiffening plates 12 are equidistantly distributed along the connection position between the top support node body 400 and the support base 11. The top support node body 400 and the support base 11 are reinforced and supported by the multiple sets of stiffening plates 12.

[0038] The honeycomb single water-blocking seat 13 has a regular hexagonal structure, and a matching seat 14 is provided on the honeycomb single water-blocking seat 13. At the same time, the honeycomb single water-blocking seat 13 is provided on the outer side of the matching seat 14. Multiple sets of honeycomb single water-blocking seats 13 are connected together to form a honeycomb waterproof structure.

[0039] like Figure 2-8As shown: The use of circular support base 11 in conjunction with equidistantly distributed trapezoidal stiffening plates 12 can significantly improve the overall stress strength and pressure stability of the connection structure between the back-top support node body 400 and the support base 11, disperse the vertical back-top load and avoid local stress concentration. At the same time, the regular hexagonal honeycomb single water-blocking base 13 is combined with the mounting base 14 to form a strong and tightly fitting honeycomb waterproof structure. The splicing gaps are smaller and the waterproof coverage is uniform and comprehensive. It has the dual functions of structural load-bearing reinforcement and zoned water blocking and seepage prevention. While ensuring the rigidity of the node support, it significantly improves the waterproof sealing performance. The structure is reasonably stressed and easy to assemble. Compared with the traditional planar single-layer waterproof structure, it has stronger compressive and deformation resistance and a long-lasting waterproof effect.

[0040] Each of the multiple sets of honeycomb single water-blocking bases 13 is provided with a water-blocking step 131, and the multiple sets of water-blocking steps 131 are combined together to form a water-blocking channel 17 at their connection position. The secondary waterproof honeycomb isolation mechanism 100 also includes a water-blocking isolation bushing 18, and the water-blocking isolation bushing 18 is provided with multiple sets of step filling pads 181. At the same time, the bottom of each set of step filling pads 181 is provided with an interference filling pad 1811.

[0041] The interference filler 1811 is adapted to the size of the water-blocking channel 17, and the interference filler 1811 is filled in the water-blocking channel 17. The step filler 181 covers the outside of the multiple sets of mounting seats 14. After the multiple sets of honeycomb single water-blocking seats 13 are spliced ​​together, they are waterproofed once by the interference filler 1811 and waterproofed twice by the step filler 181.

[0042] Triangular water-blocking grooves 182 are provided on multiple sets of stepped filling pads 181, and multiple sets of screw holes 183 are provided on the honeycomb single water-blocking seat 13. At the same time, three sets of through holes are provided in the triangular water-blocking grooves 182, and the fixing bolts are screwed into the screw holes 183 through the through holes. The triangular water-blocking grooves 182 are filled with triangular water-blocking pads 191, and a connecting ring 19 is provided on the outside of the triangular water-blocking pads 191. At the same time, multiple sets of triangular water-blocking pads 191 are equidistantly arranged along the circumference of the connecting ring 19.

[0043] like Figure 3-8As shown: By setting water-blocking steps 131 on multiple sets of honeycomb single water-blocking seats 13, the multiple sets of water-blocking steps 131 are spliced ​​to form a water-blocking channel 17. The interference-fit pad 1811 on the water-blocking isolation bushing 18 is precisely matched with the water-blocking channel 17 and interference-filled to achieve a primary waterproof seal of the splicing gap. At the same time, the step filling pad 181 is used to cover the outside of the mounting seat 14 to form a secondary waterproof, constructing a double-layer progressive gap waterproof structure, effectively blocking the seepage path at the splicing point; and by opening a triangular water-blocking groove 182 on the step filling pad 181, filling it with a triangular water-blocking pad 191 and using fixing bolts to pass through the triangular water-blocking groove, a secondary waterproof structure is formed. The 182 perforated screw is connected to the screw hole 183 of the honeycomb single water-blocking seat 13. Combined with the limiting and fixing of multiple sets of triangular water-proof pads 191 by the connecting ring 19, a third waterproof protection is formed, realizing triple-layer waterproofing and greatly improving the reliability of waterproofing. At the same time, the structure design of interference filling and bolt locking not only ensures the assembly firmness of the waterproof structure, but also adapts to the slight deviation of the splicing gap, avoiding waterproofing failure due to splicing gap. Compared with the traditional single gap sealing structure, the waterproofing layer is richer, the sealing effect is more durable, and the assembly is convenient and highly adaptable. It can effectively deal with complex seepage conditions such as capillary seepage and condensation in underground garages.

[0044] like Figure 1-10 As shown: A honeycomb waterproof structure is formed by splicing multiple sets of honeycomb single water-blocking seats 13, which together with the water-blocking steps 131 form a water-blocking channel 17. Combined with the interference filling pad 1811, the step filling pad 181, and the triangular water-blocking pad 191, multiple gaps are sealed and layered waterproofing is achieved. With the stiffening plate 12 and the plug-in assembly structure, the connection strength and waterproof sealing of the nodes are improved. Without affecting the lifting force of the back-top support and the fixed fitting function of the nodes, the waterproof durability in the humid underground garage environment is comprehensively improved. This avoids the risk of reduced load-bearing capacity and structural instability of the support components due to corrosion, and greatly extends the service life of the overall back-top support nodes.

[0045] The secondary waterproof honeycomb isolation mechanism 100 also includes a mating inner socket 16 fixed on the support base 11. The mating base 14 also has a mating space 15, and the dimensions of the mating space 15 and the mating inner socket 16 are compatible. The mating inner socket 16 is inserted into the mating space 15. Both the mating space 15 and the mating inner socket 16 are triangular structures. The support base 11 is fixed at the bottom of the honeycomb single water-blocking base 13 by the mating space 15 and the mating inner socket 16 and then screwed together with high-strength bolts.

[0046] like Figure 1-10As shown: A double-layer, multi-level waterproof system is formed by setting up a primary waterproof buffer composite pad 300 and a secondary waterproof honeycomb isolation mechanism 100. The alternating rubber pads 31 and metal sheets 32, together with the limiting columns 33, are tightly attached to the garage ceiling 200, effectively blocking leakage, condensation, and capillary seepage of groundwater from the underground garage roof. This blocks the downward spread of seepage from the source, preventing water from flowing down the back support node body 400 and polluting the garage floor. At the same time, it isolates water vapor from long-term contact with the steel structure components, avoiding corrosion, aging, and mechanical performance degradation of the metal structure, and ensuring the long-term structural strength and vertical load-bearing stability of the back support.

[0047] A primary waterproof buffer composite pad 300 is disposed between multiple sets of secondary waterproof honeycomb isolation mechanisms 100 and garage ceiling 200. The primary waterproof buffer composite pad 300 includes multiple sets of rubber pads 31 and metal sheets 32 disposed between the secondary waterproof honeycomb isolation mechanisms 100 and garage ceiling 200, and the multiple sets of rubber pads 31 and metal sheets 32 are distributed alternately.

[0048] Multiple sets of limiting posts 33 are interspersed between multiple sets of rubber pads 31 and metal sheets 32, and the multiple sets of limiting posts 33 are disposed through the rubber pads 31 and metal sheets 32. The thickness of the rubber pads 31 is less than the thickness of the metal sheets 32, and the outer sides of the rubber pads 31 and metal sheets 32 are wrapped with rubber bushings.

[0049] like Figure 1-12 As shown: By setting a triangular mating socket 16 on the support base 11, and cooperating with the triangular mating space 15 opened in the honeycomb single water-blocking base 13, the stability and positioning accuracy of the triangular structure are utilized to achieve quick and accurate alignment between the support base 11 and the honeycomb single water-blocking base 13, avoiding misalignment during assembly. At the same time, the connection between the two is further improved by fixing with high-strength bolts, taking into account both assembly convenience and structural load-bearing stability.

[0050] like Figure 11 and Figure 12 As shown: A primary waterproof buffer composite pad 300 is placed between the secondary waterproof honeycomb isolation mechanism 100 and the garage ceiling 200. Multiple sets of alternating rubber pads 31 and metal sheets 32 are used, combined with limiting posts 33 for through-limiting and fixing. The thickness of the rubber pad 31 is less than that of the metal sheet 32. The metal sheet 32 ​​ensures the vertical bearing rigidity of the top support, while the rubber pads 31 achieve a tight fit and buffer force relief, avoiding rigid contact damage to the garage ceiling 200. The outer rubber bushing further enhances the sealing and waterproofing effect, achieving the dual functions of waterproofing and buffering. At the same time, the alternating distribution structure can disperse the top load and prevent water vapor penetration. Compared with traditional single-material waterproof pads, it has multiple advantages of waterproofing, buffering, and load-bearing, adapting to the complex working conditions of underground garages. It is also easy to assemble, has strong stability, and effectively improves the overall waterproofing and support performance.

[0051] Working principle: During construction, the secondary waterproof honeycomb isolation mechanism 100 is installed on the top of the top support node body 400. The support seat 11 is reinforced and connected to the top support node body 400 through trapezoidal stiffening piece 12. Multiple sets of regular hexagonal honeycomb single water-blocking seats 13 are spliced ​​together by the matching seats 14 to form an overall honeycomb waterproof structure. After the matching space 15 at the bottom of the honeycomb single water-blocking seat 13 is inserted and aligned with the matching inner socket 16 on the support seat 11, it is locked and fixed with high-strength bolts. The water-blocking steps 131 at the connection of each honeycomb single water-blocking seat 13 are combined to form a connected water-blocking channel 17. The interference filling pad 1811 on the water-blocking isolation bushing 18 is tightly interference filled into the water-blocking channel 17 to achieve gap sealing and seepage prevention.

[0052] The step filling pad 181 covers the outside of the mounting base 14 to form a secondary waterproof isolation. The triangular water-proof pad 191 is locked and fixed inside the triangular water-proof groove 182 by fixing bolts and screw holes 183. Multiple sets of triangular water-proof pads 191 are evenly arranged around the circumference of the connecting ring 19 to further strengthen the layered water-proof protection. The primary waterproof buffer composite pad 300 is set between the secondary waterproof honeycomb isolation mechanism 100 and the garage ceiling 200. The alternating rubber pads 31 and metal sheets 32 are fixed by the limiting post 33. The outer side is wrapped with a rubber bushing and fits tightly against the bottom surface of the garage ceiling 200. When the garage ceiling 200 leaks, condenses, condenses and capillary seepage, the primary waterproof buffer composite pad 300 first seals and buffers the water. Then, through the honeycomb splicing structure, the water-blocking channel 17 is sealed and the multi-level pad water-proofing is formed to form a multi-layer progressive waterproof isolation, which orderly blocks the vertical flow path of seepage and prevents water from flowing down along the top support node body 400.

[0053] A construction method for a multi-layered waterproof structure of a roof support node in an underground parking garage includes the following steps:

[0054] S1: Weld multiple sets of trapezoidal stiffening plates 12 at equal intervals to the top of the top support node body 400, and then firmly weld the circular support base 11 to the top support node body 400 through the stiffening plates 12 to complete the installation and fixing of the bottom base of the secondary waterproof honeycomb isolation mechanism 100.

[0055] S2: The regular hexagonal honeycomb single water-blocking base 13 is spliced ​​and combined in sequence so that the matching space 15 of the honeycomb single water-blocking base 13 is precisely inserted and aligned with the triangular matching inner socket 16 on the top of the support base 11. Each honeycomb single water-blocking base 13 is locked and fixed by passing high-strength bolts through the screw holes 183, so that the water-blocking steps 131 of adjacent honeycomb single water-blocking bases 13 are spliced ​​to form a complete water-blocking channel 17.

[0056] S3: Assemble the water-blocking isolation bushing 18 onto the outside of the honeycomb single water-blocking seat 13, so that the interference filling pad 1811 is tightly embedded in the water-blocking channel 17, and the stepped filling pad 181 covers the outside of the mounting seat 14. At the same time, install the connecting ring 19 and the triangular water-blocking pad 191, so that the triangular water-blocking pad 191 is embedded in the triangular water-blocking groove 182 to complete the multi-level sealing and water-blocking construction.

[0057] S4: A primary waterproof buffer composite pad 300 is laid on the top surface of the secondary waterproof honeycomb isolation mechanism 100. Rubber pads 31 and metal sheets 32 are arranged alternately and fixed by limiting posts 33. After wrapping the outside with rubber bushings, the support node body 400 is lifted back to the top, so that the primary waterproof buffer composite pad 300 is tightly attached to the bottom surface of the garage ceiling 200, thus completing the overall multi-layer waterproof structure construction.

Claims

1. A multiple waterproofing construction of a back-propping node of an underground garage, comprising a secondary waterproofing honeycomb isolation mechanism (100), characterized in that: The secondary waterproof honeycomb isolation mechanism (100) has a top support node body (400) at the bottom and a primary waterproof buffer composite pad (300) at the top of the top support node body (400). At the same time, a garage ceiling (200) is provided on the primary waterproof buffer composite pad (300). The secondary waterproof honeycomb isolation mechanism (100) includes a support base (11) fixed on the top of the top support node body (400), and a honeycomb single water-blocking seat (13) is covered on the support base (11). The surface of the honeycomb single water-blocking seat (13) abuts against the bottom of the primary waterproof buffer composite pad (300), and the primary waterproof buffer composite pad (300) is attached to the surface of the garage ceiling (200).

2. The multi-waterproof structure of the underground garage roof support node according to claim 1, characterized in that: The support base (11) has a circular structure, and the bottom of the support base (11) is provided with multiple sets of stiffening plates (12). The stiffening plates (12) have a trapezoidal structure. The multiple sets of stiffening plates (12) are equidistantly distributed along the connection position between the top support node body (400) and the support base (11). The top support node body (400) and the support base (11) are reinforced and supported by the multiple sets of stiffening plates (12).

3. The multi-layered waterproof structure of the underground garage roof support node according to claim 1, characterized in that: The honeycomb single water-blocking seat (13) has a regular hexagonal structure, and a matching seat (14) is provided on the honeycomb single water-blocking seat (13). At the same time, a honeycomb single water-blocking seat (13) is provided on the outside of the matching seat (14). Multiple sets of the honeycomb single water-blocking seats (13) are connected together to form a honeycomb waterproof structure.

4. The multi-waterproof structure of the underground garage roof support node according to claim 3, characterized in that: Each of the multiple sets of the honeycomb single water-blocking bases (13) is provided with a water-blocking step (131), and the multiple sets of the water-blocking steps (131) are combined together to form a water-blocking channel (17) at their connection position. The secondary waterproof honeycomb isolation mechanism (100) also includes a water-blocking isolation bushing (18), and the water-blocking isolation bushing (18) is provided with multiple sets of step filling pads (181). At the same time, the bottom of each of the multiple sets of step filling pads (181) is provided with an interference filling pad (1811).

5. The multi-waterproof structure of the underground garage roof support node according to claim 4, characterized in that: The interference filler (1811) is adapted to the size of the water-blocking channel (17), and the interference filler (1811) is filled in the water-blocking channel (17). The step filler (181) covers the outside of multiple sets of mounting seats (14). After multiple sets of honeycomb single water-blocking seats (13) are spliced ​​together, they are waterproofed once by the interference filler (1811) and waterproofed twice by the step filler (181).

6. The multi-layered waterproof structure of the underground garage roof support node according to claim 5, characterized in that: Triangular water-blocking grooves (182) are provided on each of the multiple sets of step filling pads (181), and multiple sets of screw holes (183) are provided on the honeycomb single water-blocking seat (13). At the same time, three sets of through holes are provided in the triangular water-blocking grooves (182), and the fixing bolts are screwed into the screw holes (183) through the through holes. The triangular water-blocking grooves (182) are filled with triangular water-blocking pads (191), and a connecting ring (19) is provided on the outside of the triangular water-blocking pads (191). At the same time, multiple sets of triangular water-blocking pads (191) are equidistantly arranged along the circumference of the connecting ring (19).

7. The multi-waterproof structure of the underground garage roof support node according to claim 5, characterized in that: The secondary waterproof honeycomb isolation mechanism (100) also includes a mating inner socket (16) fixed on the support base (11). The mating base (14) also has a mating space (15) and the mating space (15) and the mating inner socket (16) are matched in size. The mating inner socket (16) is inserted into the mating space (15). The mating space (15) and the mating inner socket (16) are both triangular in structure. The support base (11) is aligned with the mating space (15) and the mating inner socket (16) at the bottom of the honeycomb single water-blocking base (13) and then fixed by high-strength bolts.

8. The multi-layered waterproof structure of the underground garage roof support node according to claim 1, characterized in that: The primary waterproof buffer composite pad (300) is disposed between multiple sets of secondary waterproof honeycomb isolation mechanisms (100) and the garage ceiling (200). The primary waterproof buffer composite pad (300) includes multiple sets of rubber pads (31) and metal sheets (32) disposed between the secondary waterproof honeycomb isolation mechanisms (100) and the garage ceiling (200). The multiple sets of rubber pads (31) and metal sheets (32) are distributed alternately.

9. The multi-layered waterproof structure of the underground garage roof support node according to claim 8, characterized in that: Multiple sets of limiting posts (33) are interspersed between multiple sets of rubber pads (31) and metal sheets (32), and multiple sets of limiting posts (33) are disposed through the rubber pads (31) and metal sheets (32). The thickness of the rubber pads (31) is less than the thickness of the metal sheets (32), and the outer sides of the rubber pads (31) and metal sheets (32) are covered with rubber bushings.

10. A construction method for a multi-layered waterproof structure of a roof support node for an underground parking garage, applicable to any one of claims 1-9, characterized in that: Includes the following steps: S1: Weld multiple sets of trapezoidal stiffening plates (12) at equal intervals to the top of the back support node body (400), and then firmly weld the circular support base (11) to the back support node body (400) through stiffening plates (12) to complete the installation and fixing of the bottom base of the secondary waterproof honeycomb isolation mechanism (100). S2: The regular hexagonal honeycomb single water-blocking base (13) is spliced ​​and combined in sequence so that the matching space (15) of the honeycomb single water-blocking base (13) is precisely inserted and aligned with the triangular matching inner socket (16) on the top of the support base (11). Each honeycomb single water-blocking base (13) is locked and fixed by passing high-strength bolts through the screw holes (183) so that the water-blocking steps (131) of adjacent honeycomb single water-blocking bases (13) are spliced ​​to form a complete water-blocking channel (17). S3: Assemble the water-blocking isolation bushing (18) onto the outside of the honeycomb single water-blocking seat (13), so that the interference filling pad (1811) is tightly embedded in the water-blocking channel (17), and the step filling pad (181) covers the outside of the mounting seat (14). At the same time, install the connecting ring (19) and the triangular water-blocking pad (191), so that the triangular water-blocking pad (191) is embedded in the triangular water-blocking groove (182) to complete the multi-level sealing and water-blocking construction. S4: A primary waterproof buffer composite pad (300) is laid on the top surface of the secondary waterproof honeycomb isolation mechanism (100). Rubber pads (31) and metal sheets (32) are arranged alternately. The limiting column (33) is used to fix the limiting position. After wrapping the outer side with a rubber bushing, the support node body (400) is lifted back to the top, so that the primary waterproof buffer composite pad (300) fits tightly against the bottom surface of the garage ceiling (200), thus completing the overall multi-layer waterproof structure construction.

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