Roof equipment foundation and waterproof structure and construction method thereof

Abstract

The roof equipment foundation comprises the roof equipment foundation, a first waterproof layer and a second waterproof layer, the first waterproof layer is arranged on the surface of a roof structure, and an equipment foundation felt isolation layer is arranged between the first waterproof layer and an equipment foundation expansion base; a roof heat preservation layer is arranged on the outer side of the equipment foundation expansion base, a slope making layer is arranged above the equipment foundation expansion base and the roof heat preservation layer, and the end, connected with the roof equipment foundation, of the slope making layer is not higher than the lower notch. The lower notch is filled with sealant, a reinforcing waterproof layer is arranged at the internal corner between the slope making layer and the roof equipment foundation, and the reinforcing waterproof layer covers the lower notch; the second waterproof layer covers the slope making layer, the reinforcing waterproof layer and the roof equipment foundation, and the upper end of the second waterproof layer covers the upper notch; the problems that according to an existing roof equipment foundation and a waterproof structure thereof, a construction joint is prone to leakage, the integrality of a waterproof layer is poor, a waterproof closing opening is prone to cracking, and the construction cost is high are solved.

Description

Technical Field

[0001] This invention relates to the field of roof equipment foundation and waterproofing technology, specifically to a roof equipment foundation and its waterproofing structure and construction method. Background Technology

[0002] Roof equipment foundations are typically constructed with reinforced roof structure and secondary formwork, resulting in slow overall roof construction. Furthermore, the secondary formwork makes compaction difficult, increasing the likelihood of honeycomb and pitted surfaces. The construction joint between the equipment foundation and the roof structure also reduces the structure's self-waterproofing performance. Simultaneous pouring of the equipment foundation and roof structure causes the roof waterproofing layer to break at the equipment foundation, failing to form a continuous skin and affecting the roof's external waterproofing performance. The waterproofing termination of the equipment foundation is difficult to complete, easily resulting in upward-facing cracks. The use of different materials between the equipment foundation and the roof waterproofing protective layer can easily lead to shrinkage cracks, allowing rainwater to penetrate into the roof structure and cause leaks.

[0003] Among existing patented technologies, the invention patent with patent number 202410774131.9 discloses a construction structure and method for waterproof membrane for roof equipment foundations. It can sandwich the waterproof membrane between the upper and lower concrete foundations by stacking the equipment foundation, eliminating the impact of equipment installation on the membrane and greatly reducing the risk of leakage at the equipment foundation. However, it is a two-stage pouring with a waterproof membrane sandwiched in the middle, which damages the integrity of the foundation and there is a risk of leakage at the construction joint between the equipment foundation and the roof panel.

[0004] A utility model patent with patent number 202022832528.9 discloses a waterproof structure for roof equipment foundations. It features a metal casing fixedly fitted to the outer wall of the foundation pier, with a metal plate fixedly connected to the bottom of the outer wall. A cement mortar leveling layer is applied to the top of the roof outside the metal casing. A first waterproof membrane layer is laid on top of the leveling layer and the outer wall of the metal casing. A second waterproof membrane layer covers the top of the foundation pier. The foundation's sides are wrapped with a metal shell, and the top is fitted with a metal cover and a metal flat shading plate, increasing the overall cost of the foundation. Furthermore, the adhesion between the metal plate and the first membrane layer is poor, making the membrane prone to cracking. Summary of the Invention

[0005] The purpose of this invention is to provide a roof equipment foundation, its waterproof structure, and a construction method, aiming to improve the problems of easy leakage at construction joints, poor integrity of the waterproof layer, easy cracking at waterproof joints, and high construction costs in existing roof equipment foundations and their waterproof structures.

[0006] To achieve the above objectives, according to one aspect of the present invention, a roof equipment foundation is provided, comprising a foundation body, an equipment foundation eave extending outwards from the upper end of the foundation body, an equipment foundation enlarged base extending outwards from the lower end of the foundation body, and an equipment foundation embedded part for installing equipment pre-embedded in the top of the foundation body; an upper recess and a lower recess are provided on the outer wall of the foundation body surrounding the foundation body, the upper recess being located below the equipment foundation eaves and the lower recess being located above the equipment foundation enlarged base.

[0007] Furthermore, the extension length of the equipment foundation eaves in all directions is 30-70mm, the extension length of the equipment foundation enlarged base in all directions is 150-250mm, the upper recess is 40-60mm away from the equipment foundation eaves, and the lower recess is 50-150mm away from the equipment foundation enlarged base.

[0008] According to a second aspect of the present invention, the present invention provides a waterproof structure for a roof equipment foundation, comprising the aforementioned roof equipment foundation, and further comprising a first waterproof layer and a second waterproof layer. The first waterproof layer is disposed on the surface of the roof structure. An equipment foundation felt isolation layer is disposed between the first waterproof layer and the expanded base of the equipment foundation. A roof insulation layer is disposed on the outer side of the expanded base of the equipment foundation. A slope-forming layer is disposed above the expanded base of the equipment foundation and the roof insulation layer. The end of the slope-forming layer that connects with the roof equipment foundation is not higher than a recessed opening. The recessed opening is filled with sealant. A reinforced waterproof layer is disposed at the internal corner between the slope-forming layer and the roof equipment foundation, and the reinforced waterproof layer covers the recessed opening. The second waterproof layer covers the slope-forming layer, the reinforced waterproof layer, and the roof equipment foundation, and the upper end of the second waterproof layer extends to completely cover the upper recessed opening.

[0009] Furthermore, the first waterproof layer includes a non-curing asphalt waterproof coating layer applied to the surface of the roof structure and an asphalt self-adhesive waterproof membrane laid on the non-curing asphalt waterproof coating layer; the length and width of the equipment foundation felt isolation layer are respectively 100-150mm outward from the length and width of the equipment foundation enlarged base.

[0010] Furthermore, the second waterproof layer uses SBS bitumen pre-laid reverse-adhesive waterproof membrane, and the overlap width between adjacent SBS bitumen pre-laid reverse-adhesive waterproof membranes is not less than 100mm; the second waterproof layer covers the inner wall of the upper recess and is fixed at the upper recess by a stainless steel sealing strip.

[0011] Furthermore, the slope-finding layer is made of lightweight aggregate concrete with a slope of 2%-3%. A leveling layer is provided on the upper surface of the slope-finding layer. The leveling layer is made of fine stone concrete. The top elevation of the finished surface of the slope-finding layer and the leveling layer is flush with the bottom opening of the recess.

[0012] Furthermore, the upper surface of the roof insulation layer is flush with the upper surface of the expanded base of the equipment foundation, and the material used for the reinforced waterproof layer is an anti-slip waterproof coating.

[0013] Furthermore, a waterproof protective layer is provided on the second waterproof layer covering the slope layer, and a steel mesh is laid inside the waterproof protective layer. The surface of the roof equipment foundation is provided with building thermal insulation mortar, and an eaves beak is formed at the lower outer side of the equipment foundation eaves. The gap between the building thermal insulation mortar and the waterproof protective layer is sealed with sealant.

[0014] According to a third aspect of the present invention, the present invention provides a construction method for a waterproof structure for a roof equipment foundation, for use in the aforementioned waterproof structure for a roof equipment foundation, comprising the following steps:

[0015] S100, Construct the foundation for roof equipment;

[0016] S200, roof base treatment and waterproofing construction, forming the first waterproof layer on the roof structure surface;

[0017] S300. Install an equipment foundation asphalt felt isolation layer on the first waterproof layer of the roof structure surface, and install the roof equipment foundation on the equipment foundation asphalt felt isolation layer.

[0018] S400, roof insulation layer construction;

[0019] S500, Slope layer and leveling layer construction: The slope layer is poured above the enlarged base of the equipment foundation and the roof insulation layer, and the upper surface of the slope layer is leveled to form the leveling layer.

[0020] S600. Sealant is filled into the recessed opening, and anti-slip waterproof coating is used to reinforce the inside corner between the roof equipment foundation and the slope layer to form a reinforced waterproof layer, which covers the recessed opening.

[0021] S700, second waterproof layer construction;

[0022] S800 waterproof protective layer construction;

[0023] S900: Apply building insulation mortar to the surface of the roof equipment foundation, and seal the gaps between the building insulation mortar and the waterproof protective layer with sealant to ensure a tight seal and prevent rainwater penetration.

[0024] Further, step S100 is as follows: Plastic templates are assembled and installed along the outline according to the structure of the roof equipment foundation. Reinforcement treatment is applied to the template joints to prevent bulging. Reinforcing joists are installed between the plastic templates on the lower side of the equipment foundation eaves, the upper side of the equipment foundation enlarged base, and the lower side. The reinforcing joists and plastic templates are fixed together with rivets to reduce template deformation. An exhaust pipe is installed on the top surface of the plastic template at the equipment foundation enlarged base for vibration and venting during concrete pouring to ensure foundation forming quality. Rubber strips are installed on the inner surface of the plastic template at the corresponding upper and lower recesses, arranged in a ring. A steel reinforcement cage is tied inside the plastic template. The embedded parts of the equipment foundation are accurately positioned and welded to the steel reinforcement cage. C30 self-compacting concrete is used for pouring, with layered construction and vibration compaction. After 12 hours of pouring, the surface is covered with a film and geotextile for 7 days of curing. Once the strength reaches the standard, the template is removed, and the surface of the roof equipment foundation is polished to make it smooth.

[0025] The specific steps S200 are as follows: First, a water tightness test is conducted on the roof structure, and leaks are sealed. The surface of the roof structure is cleaned to remove debris, dust, and oil stains from the roof structure panels, ensuring that the surface is clean and flat. Any uneven areas are repaired or ground smooth. Waterproofing reinforcement is applied to the surface of the roof structure, the internal and external corners of the roof, and pipe roots. A non-curing asphalt waterproof coating + SBS asphalt self-adhesive waterproof membrane is used to complete the roof waterproofing construction, forming the first waterproof layer on the surface of the roof structure.

[0026] The specific steps S300 are as follows: positioning and marking lines are made on the first waterproof layer on the surface of the roof structure, and the edge line of the roof equipment foundation is marked out. Before the installation of the roof equipment foundation, the equipment foundation asphalt felt isolation layer is laid first. The size of the equipment foundation asphalt felt isolation layer is 100mm outward from the size of the equipment foundation enlarged base. Then the roof equipment foundation is hoisted and installed, and the roof equipment foundation is placed stably on the equipment foundation asphalt felt isolation layer.

[0027] The specific steps of S400 are as follows: rock wool fireproof isolation strip is used within 500mm of the inner side of the parapet wall, and extruded polystyrene board is used for the large area insulation board; after the roof insulation layer is laid, the top surface of the roof insulation layer and the enlarged base of the equipment foundation are flush.

[0028] The specific steps of step S500 are as follows: The slope-finding layer is made of lightweight aggregate concrete with a slope of 2%-3%. The upper surface of the slope-finding layer is leveled with fine stone concrete to form a leveling layer, so that the surface of the slope-finding layer is flat. The top elevation of the finished surface of the slope-finding layer and the leveling layer is flush with the bottom of the recess.

[0029] The specific steps of S700 are as follows: The second waterproof layer adopts SBS asphalt pre-laid reverse adhesive waterproof membrane. The SBS asphalt pre-laid reverse adhesive waterproof membrane is laid from the lowest point, parallel to the ridge direction, and the overlap width between the membranes is not less than 100mm. When it is laid to the roof equipment foundation, it wraps upward to the roof equipment foundation, and the height is turned up to cover the upper recess. It is fixed at the upper recess with a stainless steel sealing strip.

[0030] The specific steps of S800 are as follows: a steel mesh is laid on the second waterproof layer covering the slope layer and the leveling layer, and then a waterproof protective layer is poured. The thickness of the steel mesh is ≥50mm. After the construction of the waterproof protective layer is completed, the waterproof protective layer is cut and water is sprinkled to cure it to the design strength to avoid cracks.

[0031] In step S900, when using building insulation mortar to finish the surface, insulation mortar is used to form the beak of the eaves at the lower outer side of the equipment foundation eaves. Finally, paint is applied to the surface of the roof equipment foundation for decoration.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. This invention solves the problems of easy leakage at construction joints, poor integrity of the waterproof layer, easy cracking at waterproof joints, and high construction costs in existing roof equipment foundations and their waterproof structures.

[0034] 2. The roof equipment foundation template of the present invention is an integral assembly with mortise and tenon joints between the templates, which facilitates processing and disassembly. The roof equipment foundation adopts the form of centralized on-site prefabrication, which makes the production cost of the roof equipment foundation lower.

[0035] 3. The roof equipment foundation and roof structure of the present invention are constructed independently, avoiding construction joints between the roof equipment foundation and the roof structure, enhancing the self-waterproofing performance of the structure. The roof equipment foundation is installed after the roof waterproofing construction is completed, ensuring the integrity of the first waterproof layer on the roof structure, improving the roof waterproofing performance, and accelerating the construction period.

[0036] 4. The roof equipment foundation of the present invention is provided with an equipment foundation eaves on the top, and an eaves beak is provided on the lower side of the outer end of the equipment foundation eaves, which can effectively prevent rainwater from directly washing the roof equipment foundation and effectively prevent cracking of the roof equipment foundation surface layer and waterproof sealing.

[0037] 5. The lower opening of the recess in the roof equipment foundation of this invention is flush with the top surface of the roof sloping layer. Applying sealant to the recess prevents shrinkage cracking between the different materials of the foundation and the sloping layer. Flexible sealing material is used to seal the gaps and block water seepage, ensuring waterproofing quality. The upper recess is used for the finishing of the waterproof membrane used in the second waterproof layer, ensuring standardized waterproof finishing, avoiding upward-facing seams, and reducing concrete chipping.

[0038] 6. The roof equipment foundation of the present invention is provided with an enlarged base, which can ensure the stability of the roof equipment foundation installation and improve the overturning resistance of the roof equipment foundation. At the same time, the thickness of the enlarged base is the same as the roof insulation layer, so that the base layer of the slope layer is on the same plane, which facilitates the construction of the slope layer.

[0039] 7. The present invention sets up a second waterproof layer, which is made of SBS asphalt pre-laid reverse-adhesive waterproof membrane. This can enhance the material compatibility between the waterproof layer and the protective layer, reduce cracking of the protective layer, improve the durability of the roof waterproof structure, and avoid damage to the finished product during the construction of the waterproof protective layer. Attached Figure Description

[0040] Figure 1 This is a cross-sectional view of the roof equipment foundation provided by the present invention;

[0041] Figure 2 This is a cross-sectional view of the waterproof structure for the roof equipment foundation provided by the present invention;

[0042] Figure 3 This is a cross-sectional view of the roof structure, the first waterproof layer, and the asphalt felt isolation layer of the roof equipment foundation waterproof structure provided by the present invention.

[0043] Figure 4 This is a cross-sectional view of the roof equipment foundation template provided by the present invention;

[0044] Figure 5 This is an elevation view of the roof equipment foundation template provided by the present invention.

[0045] Attached reference numerals: 1. Upper notch; 2. Lower notch; 3. Enlarged base of equipment foundation; 4. Eaves of equipment foundation; 5. Embedded parts of equipment foundation; 6. Plastic formwork; 7. Rivet; 8. Rubber strip; 9. Reinforcing keel of formwork; 10. Exhaust pipe; 11. Roof structure; 12. Non-curing asphalt waterproof coating layer; 13. Asphalt self-adhesive waterproof membrane; 14. Asphalt felt isolation layer of equipment foundation; 15. Building thermal insulation mortar; 16. Eaves beak; 17. Roof insulation layer; 18. Slope finding layer; 19. Second waterproof layer; 20. Reinforced waterproof layer; 21. Steel mesh; 22. Sealant; 23. Stainless steel sealing strip; 24. Waterproof protective layer. Detailed Implementation

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0048] Example 1

[0049] This embodiment provides a roof equipment foundation, such as Figure 1 As shown, the system includes a main foundation with an internal steel reinforcement frame. An equipment foundation eave 4 extends outwards from the upper end of the main foundation, with an extension length of 30-70mm, preferably 50mm. An expanded equipment foundation base 3 extends outwards from the lower end of the main foundation, with an extension length of 150-250mm, preferably 200mm. Embedded equipment foundation components 5, including embedded steel plates and bolts, are pre-installed in the top of the main foundation. An upper recess 1 and a lower recess 2 are provided on the outer wall of the main foundation, surrounding it. The upper recess 1 is located below the equipment foundation eave 4, 40-60mm away from it. The lower recess 2 is located above the expanded equipment foundation base 3, 50-150mm away from it.

[0050] Example 2

[0051] This embodiment provides a waterproof structure for the foundation of roof equipment, such as Figure 2 and Figure 3As shown, the roof equipment foundation provided in Embodiment 1 includes a first waterproof layer and a second waterproof layer 19. The first waterproof layer is applied to the surface of the roof structure 11 after grinding and cleaning. The first waterproof layer includes a non-curing asphalt waterproof coating layer 12 applied to the surface of the roof structure 11 and an asphalt self-adhesive waterproof membrane 13 laid on the non-curing asphalt waterproof coating layer 12. An equipment foundation felt isolation layer 14 is provided on the first waterproof layer. The length and width of the equipment foundation felt isolation layer 14 are 100-150mm outward from the length and width of the equipment foundation enlarged base 3, respectively. The roof equipment foundation is placed on the equipment foundation felt isolation layer 14, and the equipment foundation enlarged base 3 of the roof equipment foundation is in direct contact with the equipment foundation felt isolation layer 14. The equipment foundation felt isolation layer 14 is located above the first waterproof layer, forming an elastic buffer layer, preventing rigid contact between the roof equipment foundation and the first waterproof layer, avoiding damage to the first waterproof layer due to mechanical stress, and maintaining the "whole skin" waterproof effect. Moreover, the equipment foundation felt isolation layer 14 itself also has certain waterproof and moisture-proof properties, forming a moisture barrier.

[0052] like Figure 2 As shown, a roof insulation layer 17 is provided on the outer side of the expanded base 3 of the equipment foundation, and the upper surface of the roof insulation layer 17 is flush with the upper surface of the expanded base 3 of the equipment foundation. A slope-forming layer 18 is provided above the expanded base 3 of the equipment foundation and the roof insulation layer 17. The slope-forming layer 18 is made of lightweight aggregate concrete with a slope of 2%-3%. A leveling layer, made of fine stone concrete, is provided on the upper surface of the slope-forming layer 18. The top elevation of the finished surfaces of the slope-forming layer 18 and the leveling layer is flush with the lower opening of the recess 2. The recess 2 is filled with sealant. A reinforced waterproof layer 20 is provided at the internal corner between the slope-forming layer 18 and the roof equipment foundation, covering the recess 2. The material used for the reinforced waterproof layer 20 is an anti-slip waterproof coating. A second waterproof layer 19 covers the slope-forming layer 18, the reinforced waterproof layer 20, and the roof equipment foundation. The upper end of the second waterproof layer 19 extends to completely cover the upper recess 1. The second waterproof layer 19 uses SBS bitumen pre-laid reverse-adhesive waterproof membrane, and the overlap width between adjacent SBS bitumen pre-laid reverse-adhesive waterproof membranes is not less than 100mm. The second waterproof layer 19 covers the inner wall of the upper recess 1 and is fixed at the upper recess 1 by a stainless steel sealing strip 23.

[0053] like Figure 2 As shown, the second waterproof layer 19 covers the slope-finding layer 18 and is provided with a waterproof protective layer 24. The waterproof protective layer 24 is filled with a steel mesh 21. The surface of the roof equipment foundation is provided with building insulation mortar 15, and an eaves beak 16 is formed at the lower outer side of the equipment foundation eaves 4. The gap between the building insulation mortar 15 and the waterproof protective layer 24 is filled with sealant 22 to ensure a tight seal and prevent rainwater penetration.

[0054] Example 3

[0055] This embodiment provides a construction method for a waterproof structure for a roof equipment foundation, used in the waterproof structure for a roof equipment foundation provided in Embodiment 2, including the following steps:

[0056] S100. Construction of Roof Equipment Foundation: The roof equipment foundation adopts a centralized prefabrication method on-site. Specifically: Plastic templates 6 are assembled and installed along the outline according to the structure of the roof equipment foundation. The plastic templates 6 are connected by mortise and tenon joints, and the joints are reinforced to prevent bulging. Reinforcing joists 9 are installed between the plastic templates 6 on the underside of the equipment foundation eaves 4 and the upper and lower sides of the equipment foundation enlarged base 3. The reinforcing joists 9 are fixed to the plastic templates 6 with rivets 7 to reduce template deformation. At the equipment foundation enlarged base 3... An exhaust pipe 10 is installed on the top surface of the plastic formwork 6 for vibration and exhaust during concrete pouring to ensure the quality of foundation forming. Rubber strips 8 are installed on the inner surface of the plastic formwork 6 at the positions corresponding to the upper recess 1 and lower recess 2, and the rubber strips 8 are arranged in a ring. A steel reinforcement cage is tied inside the plastic formwork 6, and the equipment foundation embedded parts 5 are accurately positioned and welded to the steel reinforcement cage. C30 self-compacting concrete is used for pouring, and the concrete is poured in layers and vibrated to compact it. After 12 hours of pouring, the concrete is covered with a film and geotextile for curing for 7 days. The formwork is removed after the strength reaches the standard, and the surface of the roof equipment foundation is polished to make it flat.

[0057] S200. Roof base treatment and waterproofing construction: First, a water tightness test is conducted on the roof structure 11, and leaks are sealed. The surface of the roof structure 11 is cleaned to remove debris, dust, and oil stains from the roof structure board, ensuring that the surface is clean and flat. Any uneven areas are repaired or ground smooth. The surface of the roof structure 11, the inside and outside corners of the roof, and pipe roots are reinforced with waterproofing. A non-curing asphalt waterproof coating + SBS asphalt self-adhesive waterproof membrane is used to complete the roof waterproofing construction, forming the first waterproof layer on the surface of the roof structure 11.

[0058] S300. Positioning and marking lines are made on the first waterproof layer on the surface of the roof structure 11, and the edge line of the roof equipment foundation is marked. Before the installation of the roof equipment foundation, the equipment foundation asphalt felt isolation layer 14 is laid on the first waterproof layer. The size of the equipment foundation asphalt felt isolation layer 14 is 100mm outward from the size of the equipment foundation enlarged base 3. Then, the roof equipment foundation is hoisted and installed, and the roof equipment foundation is placed stably on the equipment foundation asphalt felt isolation layer 14.

[0059] S400, Roof insulation layer construction: Rock wool fireproof isolation strip is used within 500mm of the inner side of the parapet wall, and extruded polystyrene board is used for large-area insulation boards; after the roof insulation layer 17 is laid, the top surface of the roof insulation layer 17 and the equipment foundation enlarged base 3 are flush.

[0060] S500, Slope-finding layer 18 and leveling layer construction: Slope-finding layer 18 is poured above the equipment foundation enlarged base 3 and roof insulation layer 17. Slope-finding layer 18 is made of lightweight aggregate concrete with a slope of 2%-3%. The upper surface of slope-finding layer 18 is leveled with fine stone concrete to form a leveling layer, making the surface of slope-finding layer 18 flat. The top elevation of the finished surface of slope-finding layer 18 and leveling layer is flush with the bottom opening of recess 2.

[0061] S600. Fill the recess 2 with sealant 22. Apply anti-slip waterproof coating to the inside corner between the roof equipment foundation and the slope layer 18 to form a reinforced waterproof layer 20. The reinforced waterproof layer 20 covers the recess 2.

[0062] S700, Second Waterproof Layer 19 Construction: The second waterproof layer 19 uses SBS asphalt pre-laid reverse adhesive waterproof membrane. The SBS asphalt pre-laid reverse adhesive waterproof membrane is laid from the lowest point, parallel to the ridge direction, and the overlap width between the membranes is not less than 100mm. When it is laid to the roof equipment foundation, it wraps around the roof equipment foundation upwards, and the height is turned up to cover the upper recess 1. It is fixed at the upper recess 1 with a stainless steel sealing strip 23.

[0063] S800, Waterproof Protective Layer 24 Construction: On the second waterproof layer 19 covering the slope layer 18 and leveling layer, lay the steel mesh 21, and then pour the waterproof protective layer 24. The thickness of the steel mesh 21 is ≥50mm. After the waterproof protective layer 24 is constructed, cut the joints in the waterproof protective layer 24 and spray water to cure it to the design strength to avoid cracks.

[0064] S900. Apply building insulation mortar 15 to the surface of the roof equipment foundation for finishing. When applying building insulation mortar 15, use insulation mortar to form an eaves beak 16 at the lower outer end of the equipment foundation eaves 4. The gap between the building insulation mortar 15 and the waterproof protective layer 24 is sealed with sealant 22 to ensure a tight seal and prevent rainwater penetration. Finally, paint is applied to the surface of the roof equipment foundation for decoration.

[0065] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0066] (1) The roof equipment foundation template of the present invention is an integral assembly with mortise and tenon joints between the templates, which facilitates processing and disassembly. The roof equipment foundation adopts a centralized prefabrication method on site, which reduces the production cost of the roof equipment foundation. At the same time, the roof equipment foundation and the roof structure are constructed independently, avoiding construction joints between the roof equipment foundation and the roof structure, enhancing the self-waterproofing performance of the structure. The roof equipment foundation is installed after the roof waterproofing construction is completed, ensuring the integrity of the first waterproof layer on the roof structure 11, improving the roof waterproofing performance, and accelerating the construction period.

[0067] (2) The roof equipment foundation of the present invention is provided with an equipment foundation eave 4 at the top, and an eaves beak 16 is provided on the lower side of the outer end of the equipment foundation eave 4, which can effectively prevent rainwater from directly washing over the roof equipment foundation and effectively prevent cracking of the roof equipment foundation surface layer and waterproof joint. The lower opening of the recess 2 of the roof equipment foundation is flush with the top surface of the roof slope layer 18. The sealant is applied to the recess to prevent shrinkage cracking between the different materials of the foundation and the slope layer 18. Flexible sealing material is used to fill the gaps and block water gaps to ensure waterproof quality. The upper recess 1 is used for the sealing of the waterproof membrane used in the second waterproof layer 19 to ensure the standardization of the waterproof joint, avoid upward seams and reduce concrete chipping.

[0068] (3) The roof equipment foundation of the present invention is provided with an enlarged base 3, which can ensure the stability of the roof equipment foundation installation and improve the overturning resistance of the roof equipment foundation. At the same time, the thickness of the enlarged base is the same as that of the roof insulation layer 17, so that the base layer of the slope layer 18 is on the same plane, which facilitates the construction of the slope layer 18.

[0069] (4) The present invention sets up a second waterproof layer 19, which is made of SBS asphalt pre-laid reverse adhesive waterproof membrane. This can enhance the material compatibility between the waterproof layer and the protective layer, reduce cracking of the protective layer, improve the durability of the roof waterproof structure, and avoid damage to the finished product during the construction of the waterproof protective layer 24.

[0070] In summary, this invention solves the problems of easy leakage at construction joints, poor integrity of the waterproof layer, easy cracking at waterproof joints, and high construction costs in existing roof equipment foundations and their waterproof structures.

[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A roof equipment foundation, comprising a foundation body, characterized in that, The upper end of the foundation body extends outwards to all sides with an equipment foundation eave (4), and the lower end of the foundation body is provided with an equipment foundation enlarged base (3) extending outwards to all sides. The top of the foundation body is pre-embedded with an equipment foundation embedded part (5) for installing equipment. The outer wall of the foundation body is provided with an upper recess (1) and a lower recess (2) surrounding the foundation body. The upper recess (1) is located on the lower side of the equipment foundation eave (4), and the lower recess (2) is located on the upper side of the equipment foundation enlarged base (3).

2. The roof equipment foundation according to claim 1, characterized in that, The equipment foundation eaves (4) extends 30-70mm in all directions, the equipment foundation enlarged base (3) extends 150-250mm in all directions, the upper recess (1) is 40-60mm away from the equipment foundation eaves (4), and the lower recess (2) is 50-150mm away from the equipment foundation enlarged base (3).

3. A waterproof structure for a roof equipment foundation, comprising the roof equipment foundation as described in claim 1 or 2, characterized in that, It also includes a first waterproof layer and a second waterproof layer (19). The first waterproof layer is set on the surface of the roof structure (11). An equipment foundation felt isolation layer (14) is set between the first waterproof layer and the equipment foundation enlarged base (3). A roof insulation layer (17) is set on the outside of the equipment foundation enlarged base (3). A slope-finding layer (18) is set above the equipment foundation enlarged base (3) and the roof insulation layer (17). The end of the slope-finding layer (18) that connects with the roof equipment foundation is not higher than the recess (2). The recess (2) is filled with sealant. A reinforced waterproof layer (20) is set at the inside corner between the slope-finding layer (18) and the roof equipment foundation. The reinforced waterproof layer (20) covers the recess (2). The second waterproof layer (19) covers the slope-finding layer (18), the reinforced waterproof layer (20) and the roof equipment foundation. The upper end of the second waterproof layer (19) extends to completely cover the upper recess (1).

4. The waterproof structure for a roof equipment foundation according to claim 3, characterized in that, The first waterproof layer includes a non-curing asphalt waterproof coating layer (12) coated on the surface of the roof structure (11) and an asphalt self-adhesive waterproof membrane (13) laid on the non-curing asphalt waterproof coating layer (12); the length and width of the equipment foundation asphalt felt isolation layer (14) are 100-150mm outward from the length and width of the equipment foundation enlarged base (3).

5. The waterproof structure for a roof equipment foundation according to claim 3, characterized in that, The second waterproof layer (19) uses SBS asphalt pre-laid reverse adhesive waterproof membrane, and the overlap width between adjacent SBS asphalt pre-laid reverse adhesive waterproof membranes is not less than 100mm; the second waterproof layer (19) covers the inner wall of the upper recess (1) and is fixed at the upper recess (1) by a stainless steel sealing strip (23).

6. The waterproof structure for a roof equipment foundation according to claim 3, characterized in that, The slope-finding layer (18) is made of lightweight aggregate concrete with a slope of 2%-3%. A leveling layer is provided on the upper surface of the slope-finding layer (18). The leveling layer is made of fine stone concrete. The top elevation of the finished surface of the slope-finding layer (18) and the leveling layer is flush with the bottom of the recess (2).

7. The waterproof structure for a roof equipment foundation according to claim 3, characterized in that, The upper surface of the roof insulation layer (17) is flush with the upper surface of the equipment foundation enlarged base (3), and the material used for the reinforced waterproof layer (20) is an anti-slip waterproof coating.

8. The waterproof structure for a roof equipment foundation according to claim 3, characterized in that, The second waterproof layer (19) covers the slope layer (18) and is provided with a waterproof protective layer (24). The waterproof protective layer (24) is provided with a steel mesh (21). The surface of the roof equipment foundation is provided with building insulation mortar (15), and an eaves beak (16) is formed at the lower outer side of the equipment foundation eaves (4). The gap between the building insulation mortar (15) and the waterproof protective layer (24) is filled with sealant (22).

9. A construction method for a waterproof structure for a roof equipment foundation, used in the waterproof structure for a roof equipment foundation as described in claim 8, characterized in that, Includes the following steps: S100, Construct the foundation for roof equipment; S200, roof base treatment and waterproofing construction, forming the first waterproof layer on the surface of the roof structure (11); S300, Set up an equipment foundation felt isolation layer (14) on the first waterproof layer on the surface of the roof structure (11), and install the roof equipment foundation on the equipment foundation felt isolation layer (14); S400, roof insulation layer construction; S500, Slope layer (18) and leveling layer construction: pour slope layer (18) above the equipment foundation enlarged base (3) and roof insulation layer (17), and level the upper surface of slope layer (18) to form leveling layer. S600, sealant (22) is filled into the recess (2), and anti-slip waterproof coating is used to reinforce the inside corner between the roof equipment foundation and the slope layer (18) to form a reinforced waterproof layer (20), which covers the recess (2). Construction of S700 and the second waterproof layer (19); S800, waterproof protective layer (24) construction; S900. The surface of the roof equipment foundation is finished with building insulation mortar (15), and the gap between the building insulation mortar (15) and the waterproof protective layer (24) is filled with sealant (22).

10. A construction method for a waterproof structure for a roof equipment foundation according to claim 9, characterized in that, The specific steps of S100 are as follows: According to the structure of the roof equipment foundation, plastic templates (6) are assembled and enclosed along the outline. The template joints are reinforced to prevent bulging. Template reinforcement keels (9) are set between the plastic templates (6) on the lower side of the equipment foundation eaves (4), the upper side of the equipment foundation enlarged base (3), and the lower side. The template reinforcement keels (9) and the plastic templates (6) are fixed by rivets (7) to reduce template deformation. An exhaust pipe (10) is set on the top surface of the plastic templates (6) at the equipment foundation enlarged base (3) for vibration and exhaust during concrete pouring to ensure the quality of foundation forming. Rubber strips (8) are set on the inner surface of the plastic template (6) at the positions corresponding to the upper recess (1) and lower recess (2), and the rubber strips (8) are arranged in a ring. A steel reinforcement cage is tied inside the plastic template (6), the equipment foundation embedded parts (5) are accurately positioned and welded to the steel reinforcement cage, C30 self-compacting concrete is selected for pouring, layered construction and vibration compaction, and after 12 hours of pouring, the film and geotextile are covered for curing for 7 days. When the strength reaches the standard, the formwork is removed, and the surface of the roof equipment foundation is polished to make it flat. The specific steps S200 are as follows: First, a water tightness test is conducted on the roof structure (11), and the leakage points are sealed. The surface of the roof structure (11) is cleaned, and debris, dust and oil stains on the roof structure board are removed to ensure that the surface is clean and flat. For uneven areas, repairs or grinding are carried out to make them flat. The surface of the roof structure (11), the inside and outside corners of the roof and the pipe roots are waterproofed and reinforced. The waterproofing method of non-curing asphalt waterproof coating + SBS asphalt self-adhesive waterproof membrane is adopted to complete the roof waterproofing construction and form the first waterproof layer on the surface of the roof structure (11). The specific steps of S300 are as follows: Positioning lines are laid out on the first waterproof layer on the surface of the roof structure (11), and the edge lines of the roof equipment foundation are marked out. Before the installation of the roof equipment foundation, the equipment foundation asphalt felt isolation layer (14) is laid out first. The size of the equipment foundation asphalt felt isolation layer (14) is 100mm outward from the size of the equipment foundation enlarged base (3). Then the roof equipment foundation is hoisted and installed, and the roof equipment foundation is placed stably on the equipment foundation asphalt felt isolation layer (14). The specific steps of S400 are as follows: rock wool fireproof isolation strip is used in the 500mm range inside the parapet wall, and extruded polystyrene board is used for the large area insulation board; after the roof insulation layer (17) is laid, the top surface of the roof insulation layer (17) and the equipment foundation enlarged base (3) are flush. The specific steps S500 are as follows: The slope layer (18) is made of lightweight aggregate concrete with a slope of 2%-3%. The upper surface of the slope layer (18) is leveled with fine stone concrete to form a leveling layer, so that the surface of the slope layer (18) is flat and the top elevation of the finished surface of the slope layer (18) and the leveling layer is flush with the bottom of the recess (2). The specific steps of S700 are as follows: The second waterproof layer (19) is made of SBS asphalt pre-laid reverse adhesive waterproof membrane. The SBS asphalt pre-laid reverse adhesive waterproof membrane is laid from the lowest point, parallel to the ridge direction, and the overlap width between the membranes is not less than 100mm. When it is laid to the roof equipment foundation, it wraps the roof equipment foundation upwards and turns up to cover the upper recess (1). It is fixed at the upper recess (1) by a stainless steel sealing strip (23). The specific steps of S800 are as follows: a steel mesh (21) is laid on the second waterproof layer (19) covering the slope layer (18) and the leveling layer, and then a waterproof protective layer (24) is poured. The thickness of the steel mesh (21) is ≥50mm. After the construction of the waterproof protective layer (24) is completed, the waterproof protective layer (24) is cut and water is sprinkled to cure it to the design strength to avoid cracks. In step S900, when using building insulation mortar (15) to finish the surface, insulation mortar is used to form the eaves beak (16) at the lower outer side of the equipment foundation eaves (4). Finally, paint is applied to the surface of the roof equipment foundation for decoration.

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