Large-scale accessible pitched roof structure based on dot-matrix ridge grid

Abstract

The utility model relates to a large-scale accessible pitched roof structure based on dot-matrix ridge grids. The large-scale accessible pitched roof structure comprises a roof main body structure (1), the ridge main body structure (2) is formed by arranging a plurality of ridge supporting frameworks (21) on the roof main body structure (1) in a dot-matrix mode so as to disperse roof loads, and orderly drainage channels are formed in dot-matrix staggered gaps; the waterproof and moisture-proof structure (3) is laid on the ridge main body structure (2) so as to form a multi-layer waterproof and moisture-proof barrier and provide anti-sliding anchoring for the upper layer; and the people getting-on stone step platform (4) is laid on the waterproof and moisture-proof structure (3), serves as a space utilization core and provides a safe and stable people getting-on activity area. The stability of connection with the roof main body structure (1) is improved by arranging the ridge supporting framework, the orderly drainage of the inside and the outside is ensured by arranging the waterproof and moisture-proof structure (3), and the utilization rate of the roof is increased by arranging the man-stone step platform (4).

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a large accessible sloping roof structure based on a dot-matrix ground grid. Background Technology

[0002] Ground ridges are an indispensable part of construction. Some large buildings (such as exhibition halls and stadiums) have high requirements for the structural stability, waterproofing, moisture resistance, and space utilization of ground ridges. However, existing ground ridges have the following disadvantages:

[0003] 1. Insufficient structural stability: The large slope and large area result in a complex and concentrated distribution of roof loads (self-weight, snow load, wind load). Traditional support systems are unable to effectively and evenly transfer the loads to the substructure, which can easily lead to local deformation and cracking, threatening the safety and durability of the building.

[0004] 2. High difficulty in waterproofing and moisture-proofing: Rainwater flows quickly on slopes, and if there are weak points in the waterproof layer, it is easy to leak, which can corrode the structure and the interior; when the humidity is high, condensation is easy to form inside, which affects thermal insulation and equipment operation.

[0005] 3. Low space utilization: Traditional pitched roof structures are difficult to provide stable and reliable foundation support, which limits the multi-functional use of the roof, such as setting up equipment platforms and green spaces (such as planting and walkways).

[0006] The existing land cover is simply insufficient to meet the requirements of large buildings (such as exhibition halls, stadiums, etc.).

[0007] In view of the above, this utility model is hereby proposed. Utility Model Content

[0008] In view of the shortcomings of the existing technology, this utility model provides a large-scale accessible sloping roof structure based on a dot-matrix ground grid, which is mainly to solve the problems of low waterproof performance, stability performance and roof utilization rate of the existing accessible sloping roof, which cannot meet the actual needs.

[0009] The technical solution of this utility model is as follows:

[0010] This utility model provides a large-scale accessible pitched roof structure based on a dot-matrix ground grid, which includes:

[0011] The main roof structure is a large accessible sloping roof;

[0012] The main structure of the ground ridge consists of several ground ridge support frames arranged in a matrix on the main structure of the roof to distribute the roof load, and to form an orderly drainage channel in the staggered gaps of the ground ridge support frames arranged in a matrix.

[0013] A waterproof and moisture-proof structure is laid on the main structure of the ground ridge to form a multi-layer waterproof and moisture-proof barrier and to provide anti-slip anchoring for the upper layer;

[0014] The access stone steps platform, laid on a waterproof and moisture-proof structure, serves as the core of space utilization, providing a safe and stable area for people to move around.

[0015] This utility model uses a ground ridge support frame to distribute the roof load, while also increasing the stability of the connection between the ground ridge main structure and the roof main structure, thus increasing safety performance. It uses a waterproof and moisture-proof structure for waterproofing and effective drainage, reducing the corrosion of the roof main structure by rainwater, etc. At the same time, it sets up a walkable stone step platform to increase activity space and improve the utilization rate of the accessible sloping roof, meeting the needs of modern large-scale buildings.

[0016] Preferably, the plurality of the ground ridge support frames are strip structures with a rectangular cross-section, including a bidirectional reinforcing steel frame, and the ground ridge support frames are formed by casting C20 fine aggregate concrete on site into the bidirectional reinforcing steel frame.

[0017] Preferably, the cross-sectional dimensions of the ground support frame are designed to be 200-300mm wide and 200-300mm high, with longitudinal spacing of 10-15m, and are arranged in a crisscross pattern on the main roof structure.

[0018] Preferably, the main structure of the roof is provided with embedded steel reinforcement components, the embedded positions of which correspond to the arrangement lines of the bidirectional reinforcing steel skeleton, and the bidirectional reinforcing steel skeleton and the embedded steel reinforcement components are mechanically connected by binding to form a rigid node.

[0019] Preferably, the bidirectional reinforcing steel cage includes stirrups and longitudinal bars. The longitudinal bars are HRB400 steel bars with a diameter of 10mm. Two longitudinal bars are provided at the top and bottom of the bidirectional reinforcing steel cage, and the stirrups are HRB400 steel bars with a diameter of 10mm arranged at 150mm intervals.

[0020] Preferably, the embedded steel reinforcement component uses short steel bars of HRB400 with a diameter of 10mm or more, a length of ≥300mm, and an exposed length of ≥200mm.

[0021] Preferably, the waterproof and moisture-proof structure includes:

[0022] The base leveling layer is laid on the main structure of the roof and is formed by using 50mm thick C20 fine stone concrete as the base leveling layer.

[0023] The bottom waterproof layer is laid on the base leveling layer and is formed by sequentially laying a 2mm thick non-curing rubber asphalt waterproof coating and a 4mm thick modified asphalt waterproof membrane on the base leveling layer.

[0024] The middle protective layer is formed by pouring 60-100mm thick fine stone concrete on the waterproof membrane, and reinforcing it with a two-way mesh of HPB300 steel bars with a diameter of 6mm@200mm.

[0025] Preferably, the waterproof coating and the waterproof membrane are provided with an additional layer ≥500mm wide at the inside and outside corners.

[0026] Preferably, the access stone platform includes:

[0027] The stone bonding layer is formed by laying DS mortar with a thickness of ≥5cm on the intermediate protective layer;

[0028] The stone paving layer is formed by bonding 5cm-13cm stones to the middle protective layer through the stone adhesive layer, wherein the stone is one or a combination of natural stone or high-performance stone-imitating concrete blocks.

[0029] Preferably, the stone surface is treated with anti-slip material, and a 3-5mm wide expansion joint is reserved between adjacent stones, the expansion joint being filled with fine sand and / or special elastic sealant.

[0030] The advantages of this utility model over the prior art are:

[0031] 1. This utility model uses a ground ridge support frame as the bottom, which provides a solid foundation for heavy stone materials. The resulting ground ridge device has high strength and good stability, and can safely withstand loads such as personnel walking, equipment placement and maintenance, transforming the originally unusable sloping roof into a safe and practical functional space.

[0032] 2. This utility model uses a rigid connection method of bidirectional reinforcing steel skeleton and pre-embedded steel components to form a strong rigid node, which fundamentally ensures the stability of the connection between the main structure of the ridge and the main structure of the roof. At the same time, the stone paving layer and the stone bonding layer are set up to cooperate and form a strong anti-slip system. When the stone on the ridge is subjected to a force parallel to the slope (such as people walking or equipment vibration), it can effectively prevent the stone from sliding down in whole or in part, ensuring safety and stability.

[0033] 3. When rainwater is left behind, this utility model guides the water in an orderly manner through the pre-set slope formed by the expansion joints, the bottom waterproof layer, and the middle protective layer. The water that seeps into the interior through the gaps in the stone will be discharged in an orderly manner through the drainage channels formed by the interlacing gaps between the dotted ridge structure, thus avoiding water accumulation on the surface and inside.

[0034] It should be understood that the implementation of any embodiment of this utility model does not mean that it will simultaneously possess or achieve multiple or all of the above-mentioned beneficial effects. Attached Figure Description

[0035] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0036] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0037] Figure 1 This is an overall sectional view of the large accessible sloping roof structure provided by this utility model.

[0038] Figure 2 Detailed structural diagram of the large accessible sloping roof structure provided by this utility model;

[0039] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0040] Figure 4 This is a plan view of the large accessible sloping roof structure provided by this utility model.

[0041] Marked in the image:

[0042] 1-Roof main structure; 2-Ground ridge main structure; 21-Ground ridge support frame; 22-Two-way load-bearing steel reinforcement frame; 23-Embedded steel reinforcement components; 3-Waterproof and moisture-proof structure; 31-Base leveling layer; 32-Bottom waterproof layer; 33-Middle protective layer; 4-Walkable stone steps platform; 41-Stone bonding layer; 42-Stone paving layer.

[0043] The same or corresponding marks in the diagram indicate the same or corresponding parts. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments of this utility model and their descriptions are used to explain this utility model, but are not intended to limit this utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0046] It should be understood that the terms "comprising / including," "consisting of," or any other variations are intended to cover non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements includes not only those elements but may also include, where necessary, other elements not expressly listed, or elements inherent to such a product, apparatus, process, or method. Without further limitation, an element defined by the phrases "comprising / including," "consisting of," does not exclude the presence of additional identical elements in the product, apparatus, process, or method that includes said element.

[0047] It should also be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device, component or structure referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation on this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] This utility model relates to the field of building engineering, specifically to a large accessible sloping roof structure based on a dot-matrix ground ridge grid. It mainly comprises four parts: the main roof structure 1, the ground ridge main structure 2, the waterproof and moisture-proof structure 3, and the accessible stone step platform 4. By setting the ground ridge main structure 2, the stability of the building is increased while forming an orderly internal drainage system. By setting the waterproof and moisture-proof structure 3, the waterproof and moisture-proof performance is improved. By setting the accessible stone step platform 4, the utilization rate of the ground ridge is increased, thus solving the problem that the ground ridge in the existing technology cannot meet the needs of large buildings.

[0050] The present invention will now be described in detail with reference to preferred embodiments.

[0051] Example

[0052] This utility model provides a large-scale accessible pitched roof structure based on a dot-matrix ground grid, such as Figure 1-4 As shown, the device comprises four main parts: the main roof structure 1, the main ground structure 2, the waterproof and moisture-proof structure 3, and the access stone step platform 4. The main roof structure 1 is a large accessible sloping roof with embedded steel reinforcement components 23. The embedded steel reinforcement components 23 are short steel bars of HRB400 with a diameter of 10mm or more, a length of ≥300mm, and an exposed length of ≥200mm (HRB400 steel bars were formerly known as grade III threaded steel bars, which are a type of hot-rolled ribbed steel bars; the length is the total length of the embedded steel reinforcement components 23, and the exposed length is the length of the embedded steel reinforcement components 23 exposed above the concrete). The main ground structure 2 is fixedly connected to the main roof structure 1 through the embedded steel reinforcement components 23.

[0053] Specifically, such as Figure 2-3 The main structure 2 of the ground ridge is formed by several ground ridge support frames 21 arranged in a matrix on the main roof structure 1. Each ground ridge support frame 21 is a strip structure with a rectangular cross-section. The staggered gaps between adjacent ground ridge structures form drainage channels to provide orderly internal drainage and prevent the continuous ground ridge structure from obstructing internal water accumulation. Specifically, the cross-sectional dimensions of the ground ridge support frames 21 are designed to be 200-300mm wide and 200-300mm high, with longitudinal spacing of 10-15m, and arranged in a crisscross pattern on the main roof structure 1.

[0054] A two-way reinforcing steel cage 22 is set in the ground ridge support frame 21. The two-way reinforcing steel cage 22 includes longitudinal bars and stirrups. In the view of the strip structure with a rectangular cross-section, two longitudinal bars are set at the top and two at the bottom. Stirrups are set on the longitudinal bars. The longitudinal bars are four HRB400 steel bars with a diameter of 10mm. The stirrups are HRB400 steel bars with a diameter of 10mm, arranged in a 150mm spacing. The @150mm spacing means that the interval between adjacent stirrups is 150mm.

[0055] In the specific operation, firstly, the layout lines of the ridge support frame 21 are arranged according to the position of the pre-embedded steel reinforcement component 23 (positioning error less than or equal to 5mm). Then, the bidirectional reinforcing steel frame 22 is fixedly connected to the pre-embedded steel reinforcement component 23 by binding mechanical connection (of course, double-sided welding ≥5d or mechanical connection conforming to the specifications can also be used to form a rigid strong node and increase the stability of the connection. Finally, C20 fine stone concrete is poured into the bidirectional reinforcing steel frame 22 to form the main structure 2 of the ridge.

[0056] To ensure the pouring effect, a standardized template, made of 15mm thick plywood, is installed on the bidirectional reinforcing steel cage 22. The template, placed within the bidirectional reinforcing steel cage 22, provides support and restraint for the poured concrete, ensuring the stability of the pouring process.

[0057] See also Figure 2-3 The roof main structure 1 is also equipped with a waterproof and moisture-proof structure 3, which includes a base leveling layer 31, a bottom waterproof layer 32, and a middle protective layer 33, wherein:

[0058] A base leveling layer 31 is installed on the main roof structure 1, using 50mm thick C20 fine stone concrete for base leveling. Of course, a base leveling layer 31 is also installed on the upper end of the ground support frame 21 on the main roof structure 1.

[0059] The bottom waterproof layer 32 is laid on the base leveling layer 31. Specifically, the bottom waterproof layer 32 adopts a composite waterproofing method of waterproof coating and waterproof membrane. First, a 2mm thick non-curing rubber asphalt waterproof coating is scraped onto the base leveling layer 31, and then a 4mm thick waterproof membrane is laid on the waterproof coating to form the composite waterproof bottom waterproof layer 32.

[0060] It is important to note that: when applying the waterproof coating, the construction temperature must be greater than or equal to 5℃; during the laying of the waterproof membrane, the overlap width of two adjacent waterproof membranes must be greater than or equal to 100mm; and when laying the bottom waterproof layer 32 at the inside and outside corners, an additional layer is required, meaning that the width of the waterproof coating and waterproof membrane layer at the inside and outside corners must be greater than or equal to 500mm.

[0061] The intermediate protective layer 33 is set on the waterproof membrane. Specifically, it is made by pouring a 60-100mm thick fine stone concrete waterproof protective layer on the waterproof membrane, with HPB300 6mm diameter@200mm steel bidirectional mesh inside.

[0062] See also Figure 2-3 An access stone step platform 4 is provided on the middle protective layer 33, wherein the access stone step platform 4 includes a stone bonding layer 41 and a stone paving layer 42, wherein:

[0063] The stone bonding layer 41 is formed by laying DS mortar with a thickness of ≥5cm on the intermediate protective layer 33;

[0064] The stone paving layer 42 is formed by bonding 5cm-13cm stones to the middle protective layer 33 using a stone adhesive layer 41. In order to ensure the stability of the stone, in this embodiment, the stone is installed onto the middle protective layer 33 using a kneading and hammering process. The stone is one or a combination of natural stone or high-performance concrete blocks with imitation stone. The stone paving layer 42 forms a platform for people to walk on, which can be used for pedestrian passage or for placing machinery.

[0065] It is important to note that before installing the stone, a second layout must be performed on the intermediate protective layer 33 to accurately locate the stone paving line corresponding to the ground support frame 21. The stone should then be installed according to the corresponding stone paving line.

[0066] To ensure pedestrian safety, anti-slip treatment is applied to the surface of the stone paving layer 42, and a 3-5mm wide expansion joint is reserved between adjacent stones. The expansion joint is filled with fine sand or special elastic sealant.

[0067] To further enhance understanding of this utility model, the following specific operating methods are provided:

[0068] 1. Before pouring the main structure 1 of the roof, the position of the steel reinforcement component 23 is accurately pre-embedded according to the design drawings, with a positioning error of less than or equal to 5mm. The pre-embedded steel reinforcement component 23 is selected as short steel bars with a diameter of more than 10mm using HRB400 steel, with a total length of 300mm and an exposed length of 200mm.

[0069] After determining the location of the embedded steel reinforcement component 23, the embedded steel reinforcement component 23 is placed and concrete is poured. The main structure 1 of the roof (beams, slabs, and walls) is then completed.

[0070] 2. Tie the bidirectional reinforcing steel cage 22 to ensure that the bidirectional reinforcing steel cage 22 corresponds to the position of the pre-embedded reinforcing steel component 23. Bind the longitudinal bars to the pre-embedded reinforcing steel component 23 mechanically. Then, set up the template inside the reinforcing steel cage, pour C20 concrete, vibrate and compact it to form the main structure 2 of the ground ridge, and cover and cure for at least seven days.

[0071] 3. After the curing is completed, a 50mm thick C20 fine stone concrete is laid on the upper part of the main structure 2 of the ground ridge to form the base leveling layer 31. Then, a 2mm thick non-curing rubber asphalt waterproof coating is scraped onto the base leveling layer 31.

[0072] Next, a 4mm thick modified bitumen waterproof membrane is hot-melted and fully adhered to the top of the waterproof coating to form the bottom waterproof layer 32 of the composite waterproof layer.

[0073] Then, a 60-100mm thick fine stone concrete waterproof protective layer is built on top of the waterproof coating, and a two-way steel mesh of HPB300 with a diameter of 6mm@200mm is placed inside to form a middle protective layer 33;

[0074] Maintenance.

[0075] 4. On the middle protective layer 33, a second layout is carried out to accurately locate the stone paving line corresponding to the ground ridge support frame 21. Then, DS mortar is mixed, and a special interface agent is applied to the back of the stone. The evenly mixed DS mortar is then laid on the back of the stone. Finally, the stone is laid using a "kneading + tapping" process to ensure alignment with the ground ridge and a firm bond without any hollow spots. Special attention is paid to the stable connection between the step riser and the tread.

[0076] Finally, fill the 4mm expansion joint between adjacent stones with fine sand.

[0077] Installation complete.

[0078] In actual operation, the ground ridge device provided in this embodiment can be set up as needed. At the same time, the ground ridge device can be set up according to different heights to form a stepped ground ridge device, which ensures the passage and safety of pedestrians without affecting drainage.

[0079] The large accessible sloping roof structure provided by this utility model has the following advantages:

[0080] 1. This utility model adopts a rigid connection between the pre-embedded steel reinforcement component 23 and the ground ridge support frame 21, which significantly improves the uniformity and integrity of load transfer and effectively prevents local deformation and cracking. The stone bonding layer 41 enhances the binding force of the ground ridge on the stone, fundamentally solving the key problem of easy slippage of the stone steps on the sloping roof.

[0081] 2. The combination of the bottom waterproof layer 32, the middle protective layer 33, the expansion joints, and the staggered arrangement of the ground ridge in this utility model forms an efficient and orderly drainage channel system between adjacent stones, which greatly reduces the risk of water accumulation and improves the reliability of water blocking.

[0082] 3. This utility model utilizes waterproof coatings and waterproof membranes to form a reliable barrier, creating a bottom waterproof layer 32 and a middle protective layer 33, thereby achieving a roof waterproofing level of Class I (two layers of protection). The leakage rate is 0% in a 24-hour water tightness test. The middle protective layer 33, combined with stone, can withstand the impact of falling objects with a diameter of 50mm or less.

[0083] 4. This utility model involves pouring concrete inside the bidirectional reinforcing steel skeleton 22, and combining the concrete with the bidirectional reinforcing steel skeleton 22 to increase the compressive strength of the ground ridge by about 20% and improve the crack resistance by about 15%. The system can withstand a roof live load ≥3.0kN / ㎡, meeting the stringent requirements of the "Code for Design of Building Structures" GB50009.

[0084] 5. This utility model significantly improves space utilization and functionality, providing a solid structural foundation for a safe and stable activity area (stone), greatly expanding the use functions of large sloping roofs (equipment maintenance, viewing walkways, greening foundations, etc.). The main structure 2 of the ground ridge also facilitates the installation of subsequent facilities.

[0085] 6. The connection method between the pre-embedded steel reinforcement component 23 and the bidirectional load-bearing steel reinforcement skeleton 22 adopted in this utility model is more reliable and durable than the rebar installation connection, avoiding potential damage caused by drilling and adhesive aging problems, and making it easier to ensure construction quality.

[0086] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A large accessible pitched roof structure based on a dot-matrix ground grid, characterized in that, include: The main roof structure (1) is a large accessible sloping roof; The main structure of the ground ridge (2) consists of several ground ridge support frames (21) arranged in a matrix on the main structure of the roof (1) to distribute the roof load, and to form an orderly drainage channel in the staggered gaps of the ground ridge support frames (21) arranged in a matrix. Waterproof and moisture-proof structure (3) is laid on the main structure (2) of the ground ridge to form a multi-layer waterproof and moisture-proof barrier and to provide anti-slip anchoring for the upper layer; The access stone steps platform (4) is laid on the waterproof and moisture-proof structure (3) and serves as the core of space utilization, providing a safe and stable access area for people.

2. The large accessible sloping roof structure according to claim 1, characterized in that, The aforementioned ridge support frame (21) is a strip structure with a rectangular cross-section, including a bidirectional reinforcing steel frame (22). The ridge support frame (21) is formed by casting C20 fine stone concrete into the bidirectional reinforcing steel frame (22) on site.

3. The large accessible sloping roof structure according to claim 2, characterized in that, The cross-sectional dimensions of the ground support frame (21) are designed to be 200-300mm wide and 200-300mm high, with longitudinal spacing of 10-15m, and are arranged in a crisscross pattern on the main roof structure (1).

4. The large accessible sloping roof structure according to claim 2, characterized in that, The roof main structure (1) is provided with embedded steel reinforcement components (23), the embedded position corresponds to the arrangement line of the bidirectional stress steel reinforcement skeleton (22), and the bidirectional stress steel reinforcement skeleton (22) and the embedded steel reinforcement components (23) are connected by binding machinery to form a rigid node.

5. The large accessible sloping roof structure according to claim 2, characterized in that, The bidirectional reinforcing steel cage (22) includes stirrups and longitudinal bars. Two longitudinal bars are provided at the top and bottom of the bidirectional reinforcing steel cage (22). The longitudinal bars are made of HRB400 steel bars with a diameter of 10mm. The stirrups are made of HRB400 steel bars with a diameter of 10mm @ 150mm and are arranged in a denser manner.

6. The large accessible sloping roof structure according to claim 4, characterized in that, The pre-embedded steel reinforcement component (23) adopts short steel bars with a diameter of 10mm or more of HRB400, a length of ≥300mm, and an exposed length of ≥200mm.

7. The large accessible sloping roof structure according to claim 1, characterized in that, The waterproof and moisture-proof structure (3) includes: The base leveling layer (31) is laid on the main roof structure (1) and is formed by using 50mm thick C20 fine stone concrete as the base leveling layer; The bottom waterproof layer (32) is laid on the base leveling layer (31) and is formed by sequentially laying a 2mm thick non-curing rubber asphalt waterproof coating and a 4mm thick modified asphalt waterproof membrane on the base leveling layer (31). The middle protective layer (33) is formed by pouring 60-100mm thick fine stone concrete on the waterproof membrane and equipping it with a two-way steel mesh of HPB300 with a diameter of 6mm@200mm.

8. The large accessible sloping roof structure according to claim 7, characterized in that, The waterproof coating and the waterproof membrane are provided with an additional layer ≥500mm wide at the inside and outside corners.

9. The large accessible sloping roof structure according to claim 7, characterized in that, The access stone platform (4) includes: The stone bonding layer (41) is formed by laying DS mortar with a thickness of ≥5cm on the intermediate protective layer (33); The stone paving layer (42) is formed by attaching 5cm-13cm stone to the middle protective layer (33) through the stone adhesive layer (41), wherein the stone is one or a combination of natural stone or high-performance concrete blocks with imitation stone.

10. The large accessible sloping roof structure according to claim 9, characterized in that, The stone surface is treated with anti-slip material, and a 3-5mm wide expansion joint is reserved between adjacent stones. The expansion joint is filled with fine sand and / or special elastic sealant.

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