Metal roof structure

Abstract

The invention relates to the technical field of buildings, and particularly discloses a metal roof structure which sequentially comprises a main body steel structure, H-shaped steel, a roof panel, a keel and an aluminum plate from bottom to top, the main body steel structure is provided with a first supporting piece, the H-shaped steel is connected with the first supporting piece, and the H-shaped steel is provided with a profiling bottom plate; a sound absorption cotton layer is laid on the profiling bottom plate, the roof panel is detachably connected with the H-shaped steel, a first clamping assembly is arranged on the roof panel, the keel is connected with the roof panel through the first clamping assembly, and the aluminum plate is laid on the upper surface of the keel. According to the method, the situation that sealing glue is applied to the joint between every two adjacent roof panels can be avoided, enough telescopic space is reserved for compensating thermal expansion deformation of the roof, cracking is avoided, and the waterproof effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of building technology, and particularly to a metal roof structure. Background Art

[0002] With the continuous improvement of building design level, the construction of building roofs has become more and more diverse. Due to the many advantages of aluminum plates, such as corrosion resistance, beauty, light weight, high strength, and easy processing and forming, aluminum plates as roof panels have been widely used in the construction industry, such as in buildings like airport terminals, stations, conference and exhibition centers, stadiums, exhibition halls, large shopping malls, etc. However, affected by the joint structure of the existing aluminum plate roofs, sealant needs to be applied at the joints, and insufficient expansion space is reserved, resulting in insufficient compensation for the thermal expansion and deformation of the roof, cracking, and failure of the waterproof performance. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: how to solve the problem of deformation and cracking existing in the aluminum plate roofs of the prior art.

[0004] To solve the above technical problem, the present invention provides a metal roof structure, which sequentially includes a main steel structure, an H-shaped steel, a second support member, a roof panel, a keel, and an aluminum plate from bottom to top. The main steel structure is provided with a first support member, the H-shaped steel is connected to the first support member, a profiled bottom plate is installed on the H-shaped steel, a sound-absorbing cotton layer is laid on the profiled bottom plate, the roof panel is detachably connected to the H-shaped steel, a first clamping assembly is provided on the roof panel, the keel is connected to the roof panel through the first clamping assembly, and the aluminum plate is laid on the upper surface of the keel; there are at least two roof panels, and at least part of adjacent two roof panels extends towards the side close to the keel and is bent to form a hollow clamping portion; the first clamping assembly includes a first clamping member, a second clamping member, and a fifth fastener. The first clamping member and the second clamping member are connected by the fifth fastener, and a clamping groove is formed between the first clamping member and the second clamping member. The clamping portion is placed in the clamping groove; the first clamping member is provided with a first groove and a first protrusion, the second clamping member is provided with a second protrusion and a third protrusion, the second clamping member abuts against the first groove, and the third protrusion and the first protrusion are arranged staggered in the vertical direction. The second support member is used to connect the H-shaped steel and the roof panel, and a clamping block is provided at one end of the second support member, and the clamping block is clamped in the clamping portion.

[0005] Further preferably, a vapor barrier film is provided between the profiled bottom plate and the sound-absorbing cotton layer, and the vapor barrier film is attached to the surface of the profiled bottom plate;

[0006] and / or, the thickness of the vapor barrier film is 0.2 - 0.4 mm;

[0007] and / or, the vapor barrier film is a polypropylene vapor barrier film.

[0008] Further preferably, the sound-absorbing cotton layer is a fiberglass wool sound-absorbing layer;

[0009] And / or, the thickness of the sound-absorbing cotton layer is 40 - 80 mm.

[0010] Further preferably, the first support member includes a fixed seat, a purlin bracket, and a first fastener. The fixed seat is welded to the main body steel structure. One end of the purlin bracket is connected to the fixed seat, and the other end of the purlin bracket is connected to the H-shaped steel through the first fastener.

[0011] Further preferably, the profiled steel bottom plate is provided with a second fastener, and the profiled steel bottom plate is connected to the H-shaped steel through the second fastener.

[0012] Further preferably, the profiled steel bottom plate is an aluminized zinc color-coated profiled steel plate;

[0013] And / or, the thickness of the profiled steel bottom plate is 0.6 - 1.2 mm.

[0014] Further preferably, it further includes:

[0015] A channel member, the channel member is provided with a third fastener, and the channel member is connected to the H-shaped steel through the third fastener; and,

[0016] A second support member, the second support member is provided with a fourth fastener, and the second support member is connected to the channel member through the fourth fastener.

[0017] Further preferably, it further includes a U-shaped structural member. The U-shaped structural member is connected to the first clamping assembly, and the keel is connected to the U-shaped structural member; one end of the first clip away from the end with the channel member is provided with a support portion, the support portion is provided with a sixth fastener, and the U-shaped structural member is connected to the support portion through the sixth fastener.

[0018] Further preferably, the roof panel is an aluminum-magnesium-manganese standing seam roof panel;

[0019] And / or, the thickness of the roof panel is 0.8 - 1.5 mm.

[0020] Further preferably, the thickness of the aluminum plate is 2 - 5 mm.

[0021] Compared with the prior art, the beneficial effects of a metal roof structure provided by the present invention are as follows:

[0022] The present invention can provide effective support for the roof panel by setting the main steel structure, the first support member and the H-shaped steel, and can provide effective support for the aluminum plate by setting the keel, improving the support strength of the entire metal roof structure. The profiled bottom plate is provided to facilitate the laying of the sound-absorbing cotton layer, improving the sound insulation effect of the metal roof structure. At least part of two adjacent roof panels extends toward the side close to the keel and is bent to form a hollow clamping portion, and the clamping block is clamped in the clamping portion. After the first clamping member and the second clamping member are locked by the fifth fastener, the first clamping member and the second clamping member can apply a force to the clamping portion to clamp the clamping block, and the two adjacent roof panels are locked, so that there is no need to apply sealant to the joint between the two adjacent roof panels. By reserving enough expansion space to compensate for the thermal expansion deformation of the roof, cracking is avoided and the waterproof effect is improved. In addition, the second clamping member abuts against the first groove, and the third protrusion and the first protrusion are arranged staggered in the vertical direction. During the process of locking the first clamping member and the second clamping member by the fifth fastener, the clamping groove can be tightened and act on the clamping portion, so that the clamping portion is further tightened. After the first clamping member and the second clamping member are locked by the fifth fastener, the first clamping member and the second clamping member can be prevented from moving in the vertical direction, ensuring the stability of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the front view of a metal roof structure according to the present invention.

[0024] Figure 2 is a partial perspective view of a metal roof structure according to the present invention.

[0025] Figure 3 is the present invention Figure 2 front view.

[0026] Figure 4 is the front view of the profiled bottom plate according to the present invention.

[0027] Figure 5 is the assembly drawing of the H-shaped steel and the channel member according to the present invention.

[0028] Figure 6 is the assembly drawing of the channel member, the roof panel and the clamping assembly according to the present invention.

[0029] Figure 7 is the structural diagram of the first clamping assembly according to the present invention.

[0030] Figure 8 is the assembly drawing of the keel and the aluminum plate according to the present invention.

[0031] Reference numerals:

[0032] 1, main steel structure;

[0033] 2, first support member; 201, fixed seat; 202, purlin bracket; 203, first fastener;

[0034] 3. Profiled bottom plate; 301. Second fastener;

[0035] 4. Sound-absorbing cotton layer;

[0036] 5. H-shaped steel;

[0037] 6. Channel-shaped part; 601. Third fastener;

[0038] 7. Roof panel; 701. Clamping part;

[0039] 8. First clamping assembly; 801. First clamping piece; 801a. First groove; 801b. First protrusion; 802. Second clamping piece; 802a. Second protrusion; 802b. Third protrusion; 803. Fifth fastener; 804. Clamping groove; 805. Support part; 806. Sixth fastener;

[0040] 9. Second clamping assembly;

[0041] 10. U-shaped structural part;

[0042] 11. Keel;

[0043] 12. Aluminum plate;

[0044] 13. Vapor barrier film;

[0045] 14. Second support piece; 141. Fourth fastener; 142. Clamping block. Detailed implementation manners

[0046] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. in the present invention is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0048] 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0049] In addition, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher level height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower level height than the second feature.

[0051] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be a middle element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0052] Such as Figures 1-8As shown in the figure, this embodiment provides a metal roof structure, which sequentially includes a main steel structure 1, an H-shaped steel 5, a roof panel 7, a keel 11, and an aluminum plate 12 from bottom to top. The main steel structure 1 is provided with a first support member 2, and the H-shaped steel 5 is connected to the first support member 2. A profiled bottom plate 3 is installed on the H-shaped steel 5, and a sound-absorbing cotton layer 4 is laid on the profiled bottom plate 3. The roof panel 7 is detachably connected to the H-shaped steel 5. A first clamping assembly 8 is provided on the roof panel 7, and the keel 11 is connected to the roof panel 7 through the first clamping assembly 8. The aluminum plate 12 is laid on the upper surface of the keel 11. Among them, by providing the main steel structure 1, the first support member 2, and the H-shaped steel 5, effective support can be provided for the roof panel 7. By providing the keel 11, effective support can be provided for the aluminum plate 12, improving the support strength of the entire metal roof structure. By providing the profiled bottom plate 3, it is convenient to lay the sound-absorbing cotton layer 4, improving the sound insulation effect of the metal roof structure.

[0053] In some embodiments, the metal roof structure further includes a channel member 6 and a second support member 14. The channel member 6 is provided with a third fastener 601, and the channel member 6 is connected to the H-shaped steel 5 through the third fastener 601. One end of the second support member 14 is provided with a fourth fastener 141, and the other end is provided with a clamping block 142. The second support member 14 is connected to the channel member 6 through the fourth fastener 141, and the clamping block 142 is connected to the roof panel 7. The roof panel 7 is at least two. At least a part of two adjacent roof panels 7 extends toward the side close to the keel 11 and is bent to form a hollow clamping portion 701. The clamping block 142 is clamped in the clamping portion 701. The first clamping assembly 8 includes a first clamping member 801, a second clamping member 802, and a fifth fastener 803. The first clamping member 801 and the second clamping member 802 are connected through the fifth fastener 803. A clamping groove 804 is formed between the first clamping member 801 and the second clamping member 802, and the clamping portion 701 is placed in the clamping groove 804. In this way, at least a part of two adjacent roof panels 7 extends toward the side close to the keel 11 and is bent to form a hollow clamping portion 701. The clamping block 142 is slidably clamped in the clamping portion 701. After using the fifth fastener 803 to lock the first clamping member 801 and the second clamping member 802, the first clamping member 801 and the second clamping member 802 can apply a force to the clamping portion 701 to clamp the clamping block 142, and lock the two adjacent roof panels 7. In this way, there is no need to apply sealant at the joint between two adjacent roof panels 7. By reserving enough expansion space to compensate for the thermal expansion deformation of the roof, the roof panel 7 is allowed to freely expand and contract under temperature difference, avoiding cracking and improving the waterproof effect.

[0054] It should be noted that when the first clamping member 801 and the second clamping member 802 are locked by the fifth fastener 803, first, manual preliminary fixation is carried out, and then an electric edge locking machine is used to adjust the bite gap and walking speed according to the thickness, hardness, and resilience of the roof panel 7.

[0055] In some embodiments, the first clamping member 801 is provided with a first groove 801a and a first protrusion 801b, the second clamping member 802 is provided with a second protrusion 802a and a third protrusion 802b, the second clamping member 802 abuts against the first groove 801a, and the third protrusion 802b and the first protrusion 801b are arranged staggeredly in the vertical direction. Thus, during the process of the fifth fastener 803 locking the first clamping member 801 and the second clamping member 802, the clamping groove 804 can be tightened and act on the clamping portion 701, so that the clamping portion 701 is further tightened. After the fifth fastener 803 locks the first clamping member 801 and the second clamping member 802, the first clamping member 801 and the second clamping member 802 can be prevented from moving vertically, ensuring the stability of clamping.

[0056] In some embodiments, a vapor barrier film 13 is provided between the profiled bottom plate 3 and the sound-absorbing cotton layer 4. The vapor barrier film 13 is attached to the surface of the profiled bottom plate 3 to further improve the waterproof performance.

[0057] After laying the sound-absorbing cotton layer 4, in order to avoid the problem of workers stepping on it during installation, the sound-absorbing cotton layer 4 needs to be laid in areas on site during on-site installation. The laid sound-absorbing cotton layer 4 can first be installed with the roof panel 7 to protect the finished product.

[0058] In some embodiments, the thickness of the vapor barrier film 13 is 0.2 - 0.4 mm, preferably 0.3 mm.

[0059] In some embodiments, the vapor barrier film 13 is a polypropylene vapor barrier film. The polypropylene vapor barrier film has good heat resistance and can remain stable in a high-temperature environment. Moreover, the polypropylene vapor barrier film performs well against most acids, alkalis, salts, and oxidants and has good chemical stability. It shows inertness to polar solvents such as alcohols, phenols, aldehydes, ketones, and most carboxylic acids, but is easily dissolved or swollen in some non-polar organic solvents.

[0060] In some embodiments, the sound-absorbing cotton layer 4 is a fiberglass wool sound-absorbing layer. The fiberglass wool sound-absorbing layer has an open porous structure and can absorb a large amount of sound wave energy. Especially, it has a significant absorption effect on medium and high-frequency noises, can effectively reduce the indoor noise level. Moreover, as an inorganic material, fiberglass wool has good fire resistance, meets various fire safety standards, can effectively prevent the spread of fire, and ensure the safety of the building. In addition, fiberglass wool also has good moisture-proof performance, can effectively prevent the growth of mold, and can cooperate with the polypropylene vapor barrier film to further improve the waterproof effect.

[0061] In some embodiments, the thickness of the sound-absorbing cotton layer 4 is 40 - 80 mm, preferably 50 mm.

[0062] In some embodiments, the first support member 2 includes a fixing base 201, a purlin bracket 202, and a first fastener 203. The fixing base 201 is welded to the main body steel structure 1. One end of the purlin bracket 202 is connected to the fixing base 201, and the other end of the purlin bracket 202 is connected to the H-shaped steel 5 through the first fastener 203.

[0063] In the above embodiments, after the purlin bracket is positioned, the included angle between it and the surface of the main body steel structure 1 should be ensured to be 90° ± 1°, and the position deviation should be within 5 mm. During the welding process, measures should be taken to reduce deformation. First, perform symmetric spot welding, check the angle of the purlin bracket. After passing the inspection, then weld. If it is unqualified, correct the angle. The spot welding should be firm. The welding current should be appropriate. After the weld is formed, there should be no pores, cracks, undercutting, or weld beads. The weld size should meet the design requirements, the weld beads should be uniform, and the weld formation should be beautiful.

[0064] In some embodiments, the profiled steel deck 3 is provided with a second fastener 301, and the profiled steel deck 3 is connected to the H-shaped steel 5 through the second fastener 301.

[0065] In some embodiments, the profiled steel deck 3 is an aluminized zinc color-coated profiled steel sheet. The surface of the aluminized zinc color-coated steel sheet is covered with an alloy of aluminum and zinc. This alloy can provide excellent corrosion resistance, especially performing well in humid or highly corrosive environments and having a long service life; the aluminized zinc color-coated steel sheet can effectively reflect heat and reduce the indoor temperature, having good energy-saving effects; in addition, the aluminized zinc color-coated steel sheet is suitable for a variety of welding processes, has good welding performance, can also meet different cutting and forming requirements, and the aluminized zinc color-coated steel sheet can effectively delay the spread of fire under certain conditions, providing certain safety guarantees.

[0066] In some embodiments, the thickness of the profiled steel deck 3 is 0.6 - 1.2 mm, preferably 0.8 mm.

[0067] In some embodiments, the metal roof structure further includes a U-shaped structural member 10. The U-shaped structural member 10 is connected to the first clamping assembly 8, and the keel 11 is connected to the U-shaped structural member 10; a support portion 805 is provided at one end of the first clip 801 away from the channel-shaped member 6, and a sixth fastener 806 is provided on the support portion 805. The U-shaped structural member 10 is connected to the support portion 805 through the sixth fastener 806.

[0068] In some embodiments, the roof panel 7 is an aluminum-magnesium-manganese standing seam roof panel. The density of the aluminum-magnesium-manganese alloy is low (density 2.73 g / cm 3, about one-third that of steel), which makes it easier and more labor-saving to handle and install, while reducing the overall weight of the building. Additionally, the aluminum-magnesium-manganese plate has high strength and stable structural properties, ensuring safe and reliable use and effectively bearing various loads. Moreover, when the aluminum-magnesium-manganese plate comes into contact with air, it quickly forms a dense oxide layer, which acts as a strong protective film to effectively prevent further oxidation and corrosion of the metal. In addition, it also has good acid and alkali resistance and can maintain excellent performance for a long time in areas with frequent acid rain and environments with heavy chemical pollution, significantly reducing the need and cost of maintenance. The installation process of the aluminum-magnesium-manganese standing seam roof panel is simple and efficient. It can be prefabricated in the factory or assembled on-site, and can be quickly installed through various connection methods such as riveting, welding, or gluing, effectively shortening the construction period and reducing the construction cost. The aluminum-magnesium-manganese roof panel has a relatively high fire resistance limit and does not require additional fireproof coating spraying as it already has good fireproof performance itself. The aluminum-magnesium-manganese roof panel has good sound insulation and heat insulation performance, which can effectively reduce noise and keep the indoor temperature stable, improving the comfort of living and use.

[0069] In addition, to avoid electrochemical corrosion when the aluminum-magnesium-manganese standing seam roof panel directly contacts the purlin support 202, for this reason, the channel member 6 is preferably an aluminum channel member 6. By means of the channel member 6, the distance between the roof panel 7 and the purlin support 202 is increased, thereby playing a protective role for the roof panel 7 and the purlin support 202.

[0070] In some embodiments, the thickness of the roof panel 7 is 0.8 - 1.5 mm, preferably 1 mm.

[0071] In some embodiments, the thickness of the aluminum plate 12 is 2 - 5 mm, preferably 3 mm.

[0072] In some embodiments, the metal roof structure further includes a second clamping assembly 9. The second clamping assembly 9 and the first clamping assembly 8 are arranged alternately at intervals. The second clamping assembly 9 has the same structure as the first clamping assembly 8, except that the second clamping assembly 9 does not have the support portion 805, the second clamping assembly 9 is not connected to the keel 11, and the function of the second clamping assembly 9 is to splice two adjacent roof panels 7 to improve the wind resistance performance of the roof panel 7. The density of the second clamping assembly 9 can be increased at weak points to ensure that the wind resistance performance of the entire metal roof structure meets the requirements.

[0073] The working principle of the present invention: Please refer to Figures 1-8, the H-shaped steel 5 is installed on the main steel structure 1 through the fixing seat 201, purlin bracket 202 and the first fastener 203. The profiled steel sheet 3 with a thickness of 0.8 mm is laid on the H-shaped steel 5. The vapor barrier film 13 with a thickness of 0.3 mm is first laid on the profiled steel sheet 3, and then the sound-absorbing cotton layer 4 with a thickness of 50 mm is laid. The channel-shaped member 6 is installed, the second support member 14 is installed on the channel-shaped member 6, and the roof panel 7 with a thickness of 1 mm is laid, so that the clamping block 142 is clamped in the clamping portion 701, and is locked by the first clip 801 and the second clip 802. Then the U-shaped structural member 10 and the keel 11 are installed, and finally the aluminum plate 12 with a thickness of 3 mm is laid on the keel 11.

[0074] In summary, the embodiment of the present invention provides a metal roof structure. By setting the main steel structure 1, the first support member 2 and the H-shaped steel 5, it can provide effective support for the roof panel 7. Setting the keel 11 can provide effective support for the aluminum plate 12, improving the support strength of the entire metal roof structure. Setting the profiled steel sheet 3 facilitates the laying of the sound-absorbing cotton layer 4, improving the sound insulation effect of the metal roof structure. At least a part of adjacent two roof panels 7 extends and bends towards the side close to the keel 11 to form a hollow clamping portion 701. The clamping block 142 is clamped in the clamping portion 701. After locking the first clip 801 and the second clip 802 with the fifth fastener 803, the first clip 801 and the second clip can apply a force to the clamping portion 701 to make the clamping portion 701 clamp the clamping block 142, and lock the adjacent two roof panels 7. In this way, there is no need to seal the joint between adjacent two roof panels 7. By reserving enough expansion space to compensate for the thermal expansion deformation of the roof, cracking is avoided, and the waterproof effect is improved. In addition, the second clip 802 abuts against the first groove 801a, and the third protrusion 802b and the first protrusion 801b are arranged staggeredly in the vertical direction. During the process of locking the first clip 801 and the second clip 802 with the fifth fastener 803, the clamping groove 804 can be tightened and act on the clamping portion 701, making the clamping portion 701 further tightened. After locking the first clip 801 and the second clip 802 with the fifth fastener 803, it can prevent the first clip 801 and the second clip 802 from moving in the vertical direction, ensuring the stability of clamping.

[0075] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention. The basic principles, main features and advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

[0076] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A metal roof structure, characterized in that, It successively includes a main steel structure, H-shaped steel, a second support member, a roof panel, a keel and an aluminum plate from bottom to top. The main steel structure is provided with a first support member. The H-shaped steel is connected to the first support member. A profiled steel sheet floor is installed on the H-shaped steel. A sound-absorbing cotton layer is laid on the profiled steel sheet floor. The roof panel is detachably connected to the H-shaped steel. A first clamping assembly is provided on the roof panel. The keel is connected to the roof panel through the first clamping assembly. The aluminum plate is laid on the upper surface of the keel. There are at least two roof panels. At least part of two adjacent roof panels extends towards the side close to the keel and is bent to form a hollow clamping portion. The first clamping assembly includes a first clamping member, a second clamping member and a fifth fastener. The first clamping member and the second clamping member are connected through the fifth fastener. A clamping groove is formed between the first clamping member and the second clamping member. The clamping portion is placed in the clamping groove. The first clamping member is provided with a first groove and a first protrusion. The second clamping member is provided with a second protrusion and a third protrusion. The second clamping member abuts against the first groove. The third protrusion and the first protrusion are arranged staggeredly in the vertical direction. The second support member is used to connect the H-shaped steel and the roof panel. A clamping block is provided at one end of the second support member. The clamping block is clamped in the clamping portion.

2. A metal roof structure according to claim 1, wherein, A vapor barrier film is provided between the profiled steel sheet floor and the sound-absorbing cotton layer. The vapor barrier film is attached to the surface of the profiled steel sheet floor. and / or, the thickness of the vapor barrier film is 0.2 - 0.4 mm; and / or, the vapor barrier film is a polypropylene vapor barrier film.

3. A metal roof structure according to claim 1, characterized in that, The sound-absorbing cotton layer is a fiberglass cotton sound-absorbing layer; and / or, the thickness of the sound-absorbing cotton layer is 40 - 80 mm.

4. A metal roof structure according to claim 1, characterized in that, The first support member includes a fixed seat, a purlin bracket and a first fastener. The fixed seat is welded to the main steel structure. One end of the purlin bracket is connected to the fixed seat. The other end of the purlin bracket is connected to the H-shaped steel through the first fastener.

5. A metal roof structure according to claim 1, characterized in that, A second fastener is provided on the profiled steel sheet floor. The profiled steel sheet floor is connected to the H-shaped steel through the second fastener.

6. A metal roof structure according to claim 1, characterized in that, The profiled steel sheet floor is a galvalume color-coated profiled steel sheet; and / or, the thickness of the profiled steel sheet floor is 0.6 - 1.2 mm.

7. A metal roof structure according to claim 1, characterized in that, It further includes: A channel member which is provided with a third fastener. The channel member is connected to the H-shaped steel through the third fastener; and, A second support member which is provided with a fourth fastener. The second support member is connected to the channel member through the fourth fastener.

8. A metal roof structure according to claim 1, characterized in that, It further includes a U-shaped structural member which is connected to the first clamping assembly. The keel is connected to the U-shaped structural member. A support portion is provided at one end of the first clamping member away from the side where the channel member is located. A sixth fastener is provided on the support portion. The U-shaped structural member is connected to the support portion through the sixth fastener.

9. A metal roof structure according to claim 1, characterized in that, The roof panel is an aluminum-magnesium-manganese standing seam roof panel; and / or, the thickness of the roof panel is 0.8 - 1.5 mm.

10. A metal roof structure according to claim 1, characterized in that, The thickness of the aluminum plate is 2 - 5 mm.

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