Roof structure and building thereof

Abstract

The roof structure comprises a gutter structure, a roof panel and a waterproof covering piece, the gutter structure comprises a bottom wall, an inner side wall and an outer side wall, the inner side wall and the outer side wall are connected with the two ends of the bottom wall respectively, and the upper portion of the inner side wall is bent towards the side away from a gutter groove to form a fixed wall; the roof panel is located above the fixed wall, the fixed wall is fixedly connected with the inner side surface of the roof panel, and the end, facing the gutter structure, of the roof panel does not intersect with the plane where the inner side wall is located. The waterproof covering piece extends in the extending direction of the gutter structure and extends from the outer side surface of the roof panel to the inner side wall surface, and the waterproof covering piece is connected with the outer side surface and the inner side wall surface of the roof panel in a sealed mode. According to the technical scheme, water seepage and water leakage between the roof panel and the gutter structure can be prevented, and the waterproof performance of the roof structure is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of construction, and in particular to a roof structure and a building thereof. Background Art

[0002] With the progress and development of science and technology, metal has become a widely used material in the construction industry, especially in the metal roofing industry. Metal steel roofing has become the choice of many owners. However, the waterproofness of metal roofing has a greater impact on metal roofing.

[0003] The metal roof includes a roof panel. In order to meet the drainage requirements, the metal roof is also provided with a gutter structure. Currently, the gutter structure still has the problem of water leakage and seepage. Utility Model Content

[0004] The embodiments of the present disclosure provide a roof structure and a building thereof to solve or alleviate one or more technical problems in the prior art.

[0005] As a first aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a roof structure, including:

[0006] The gutter structure comprises a bottom wall and an inner wall and an outer wall respectively connected to two ends of the bottom wall, wherein the upper portion of the inner wall is bent toward an end away from the gutter groove to form a fixed wall;

[0007] A roof panel is located above the fixed wall, the fixed wall is fixedly connected to the inner surface of the roof panel, and one end of the roof panel facing the gutter structure does not intersect with the plane where the inner wall is located;

[0008] A waterproof covering sheet extends along the extension direction of the gutter structure and extends from the outer surface of the roof panel to the inner wall surface. The waterproof covering sheet is sealed and connected to the outer surface and the inner wall surface of the roof panel respectively.

[0009] In some possible implementations, the roof panel includes a first waterproof layer located on the outer surface, the material of the first waterproof layer includes thermoplastic polyolefin, the material of the waterproof covering sheet includes thermoplastic polyolefin, the material of the gutter structure includes thermoplastic polyolefin, the waterproof covering sheet is connected to the first waterproof layer by hot air welding, and the waterproof covering sheet is connected to the inner wall by hot air welding.

[0010] In some possible implementations, the width of the hot air welding connection is greater than 40 mm.

[0011] In some possible implementations, an end portion of the roof panel facing the gutter structure is arranged flush with the inner wall.

[0012] In some possible implementations, the roof structure also includes a first purlin, which is located on the lower side of the roof panel and close to the gutter structure. The fixed wall is located between the first purlin and the inner surface of the roof panel, and the first screw passes through the roof panel and the fixed wall to be fixedly connected to the first purlin.

[0013] In some possible implementations, the waterproof covering sheet covers the first screw.

[0014] In some possible implementations, in the extension direction of the gutter structure, the roof panel includes a first end and a second end that are oppositely arranged, the first end includes a first area portion and a second area portion, the second area portion protrudes relative to the first area portion, the second end includes a third area portion and a fourth area portion, the third area portion protrudes relative to the fourth area portion, the third area portion matches the first area portion, and the second area portion matches the fourth area portion;

[0015] In the extension direction of the gutter structure, the two adjacent roof panels are respectively the first roof panel and the second roof panel, the first end of the first roof panel is arranged opposite to the second end of the second roof panel, the third area portion is overlapped with the second area portion, and the first screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the first purlin.

[0016] In some possible implementations, the first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, the outer surface of the third area portion forms a recessed area relative to the outer surface of the roof panel, the upper end head of the first screw is located in the recessed area, and the height of the upper end head of the first screw is less than the depth of the recessed area.

[0017] In some possible implementations, a main structural steel column is further included, the bottom wall is located above the main structural steel column, a thermal insulation material is arranged between the bottom wall and the main structural steel column, and a thermal insulation material is arranged between the inner wall and the first purlin.

[0018] In some possible implementations, the roof structure also includes a main structural steel column and a parapet, the bottom wall is located above the main structural steel column, the parapet includes a wall outer panel and a parapet back panel, the wall outer panel is located on the outside of the main structural steel column and a preset gap is set between the main structural steel column, the upper end of the wall outer panel is higher than the upper end of the outer wall, a second purlin is set between the wall outer panel and the outer wall, the parapet back panel is located on the side of the outer wall facing the gutter groove, the lower part of the parapet back panel is stacked with the upper part of the outer wall and is connected to the second purlin by a second screw.

[0019] In some possible implementations, a thermal insulation material is provided on the inner side of the wall outer panel, and the second purlin is filled with the thermal insulation material.

[0020] In some possible implementations, the roof structure further includes a sealing plug, which is used to seal the exposed end of the second screw.

[0021] In some possible implementations, a parapet cap is also included, and the parapet cap is buckled on the upper ends of the wall outer plate and the parapet back plate.

[0022] As a second aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a building, comprising the roof structure of any disclosed embodiment of the present disclosure.

[0023] The technical solution of the embodiment of the present disclosure can achieve the following beneficial effects: in the roof structure of the embodiment of the present disclosure, the waterproof covering sheet is sealed and connected to the outer surface and the inner wall surface of the roof panel respectively, and the junction between the gutter structure and the roof panel is covered by the waterproof covering sheet to avoid exposure of the roof panel and reduce the risk of end corrosion of the roof panel. The gutter structure and the roof panel are connected by the waterproof covering plate to form a closed and waterproof whole, thereby avoiding water seepage and leakage between the roof panel and the gutter structure and improving the waterproof performance of the roof structure.

[0024] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present disclosure will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments according to the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0026] Figure 1 is a cross-sectional schematic diagram of a roof structure according to an embodiment of the present disclosure;

[0027] Figure 2 It is a schematic diagram of a partial structure enlargement of a roof structure according to an embodiment of the present disclosure;

[0028] Figure 3 A schematic diagram of a roof panel structure of a roof structure according to an embodiment of the present disclosure;

[0029] Figure 4 A schematic cross-sectional view of a roof panel of a roof structure according to an embodiment of the present disclosure;

[0030] Figure 5 It is a schematic cross-sectional view of the overlapping direction of the roof panels of the roof structure of the embodiment of the present disclosure;

[0031] Figure 6It is an enlarged schematic diagram of the overlapping positions of the roof panels of the roof structure of the embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0033] In the related art, the gutter structure of the roof structure is usually treated by installing eaves plugs and sealants between the roof panel and the gutter structure. Such a structure is prone to leakage in strong winds. Moreover, the gutter structure needs to be repaired repeatedly after leakage, which increases the use cost of the roof structure, and the end of the roof panel close to the gutter structure is easily corroded by rainwater.

[0034] In order to solve the water seepage and leakage problem of the roof structure in the related art, the embodiment of the present disclosure provides a roof structure. The roof structure of the embodiment of the present disclosure is described in detail with reference to the accompanying drawings.

[0035] Figure 1 is a cross-sectional schematic diagram of a roof structure according to an embodiment of the present disclosure, Figure 2 It is a schematic diagram of an enlarged local structure of the roof structure of an embodiment of the present disclosure. Figure 2 Can be Figure 1 A partial structural enlargement diagram. Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides a roof structure, including a gutter structure 10 , a roof panel 20 and a waterproof covering sheet 30 .

[0036] Reference Figure 1 and Figure 2 As shown, exemplarily, the gutter structure 10 includes a bottom wall 11 and an inner wall 12 and an outer wall 13 connected at both ends of the bottom wall 11, and the upper portion of the inner wall 12 is bent toward the end away from the gutter groove to form a fixed wall 14. The roof panel 20 is located above the fixed wall 14, and the fixed wall 14 is fixedly connected to the inner surface of the roof panel 20. The end of the roof panel 20 facing the gutter structure 10 does not intersect with the plane where the inner wall 12 is located. The waterproof covering sheet 30 extends along the extension direction of the gutter structure 10, and extends from the outer surface of the roof panel 20 to the surface of the inner wall 12, and the waterproof covering sheet 30 is sealed and connected to the outer surface of the roof panel 20 and the surface of the inner wall 12, respectively.

[0037] It should be noted that the roof structure in the embodiment of the present disclosure can be applied to the roof of a building. The "inner side" of the roof panel herein refers to the side facing the inside of the building, that is, Figure 1The lower side of the roof panel, the "outer side" of the roof panel refers to the side facing the outside of the building, that is, Figure 1 The upper side of the middle roof panel.

[0038] Exemplarily, the end of the roof panel 20 facing the gutter structure 10 does not intersect with the plane where the inner wall 12 is located. It can be understood that the end of the roof panel 20 facing the gutter structure 10 is located outside the inner wall 12, that is, the end of the roof panel 20 facing the gutter structure 10 does not extend into the gutter groove of the gutter structure 10. In this arrangement, no folding structure is formed between the inner wall 12 and the roof panel 20, which is conducive to the waterproof cover sheet 30 and the surface of the inner wall 12 to prevent water in the gutter groove from penetrating from the gap between the inner wall 12 and the roof panel 20.

[0039] In the roof structure of the disclosed embodiment, the roof panel 20 is located above the fixed wall 14, the fixed wall 14 is fixedly connected to the inner surface of the roof panel 20, the end of the roof panel 20 facing the gutter structure 10 does not intersect with the plane where the inner wall 12 is located, the waterproof covering sheet 30 extends along the extension direction of the gutter structure 10, and extends from the outer surface of the roof panel 20 to the surface of the inner wall 12, and the waterproof covering sheet 30 is respectively sealed and connected to the outer surface of the roof panel 20 and the surface of the inner wall 12. In such a roof structure, the end of the roof panel 20 facing the gutter structure 10 does not extend into the gutter groove, so that the junction between the gutter structure 10 and the roof panel 20 can be covered by the waterproof covering sheet 20, avoiding the exposure of the roof panel 20 of the roof structure, and reducing the risk of end surface corrosion of the roof panel 20. The waterproof covering sheet 30 is sealed and connected to the outer surface of the roof panel 20 and the inner wall 12 of the gutter structure 10, respectively, so that the gutter structure 10 and the roof panel 20 are connected by the waterproof covering sheet 30 to form a closed waterproof whole, thereby avoiding water seepage and leakage between the roof panel 20 and the gutter structure 10, and improving the waterproof performance of the roof structure. In addition, the end of the roof panel 20 close to the gutter structure 10 does not need to be provided with a waterproof plug or other structure, which facilitates the installation of the roof panel and reduces the cost.

[0040] Reference Figure 1 and Figure 2 As shown, for example, the bottom wall 11, the inner wall 12 and the outer wall 13 of the gutter structure 10 are connected to form a gutter groove, which is used to discharge water from the roof structure. The bottom wall 11 can be flat, such as Figure 1 In other embodiments, the bottom wall 11 may also be in a curved shape, and the shape of the bottom wall 11 may be set as required, which is not specifically limited here.

[0041] For example, the outer side wall 13 of the gutter structure 10 can be arranged close to the parapet and fixedly connected to the parapet, the inner side wall 12 of the gutter structure 10 is arranged close to the roof panel 20, and the height dimension of the outer side wall 13 can be greater than the height dimension of the inner side wall 12. The end of the roof panel 20 away from the gutter structure 10 is arranged upwardly inclined relative to the end of the roof panel 20 close to the gutter structure 10, so that water on the roof panel 20 can flow into the gutter groove of the gutter structure 10 along the roof panel 20.

[0042] Exemplarily, the waterproof covering sheet 30 is sealed and connected to the outer surface of the roof panel 20 and the inner wall 12 surface of the gutter structure 10, respectively. The waterproof covering sheet 30 is sealed and connected to the inner wall 12 surface, and the waterproof covering sheet 30 can cover part of the surface of the inner wall 12, or the waterproof covering sheet 30 can also cover the entire surface of the inner wall 12, or the waterproof covering sheet 30 can also partially cover the surface of the bottom wall 11 of the gutter structure 10. In this way, the gap between the lower surface of the roof panel 20 and the fixed wall 11 can be sealed by the waterproof covering sheet 30, thereby improving the waterproof performance between the gutter structure 10 and the roof panel 20. The specific size of the waterproof covering sheet 30 is not limited here, and can be set according to actual use requirements.

[0043] Exemplarily, the waterproof covering sheet 30 is sealed and connected to the outer surface of the roof panel 20 and the inner wall 12 surface respectively, and the waterproof covering sheet 30 can be sealed and connected to the outer surface of the roof panel 20 and the inner wall 12 surface respectively by a sealant. In other embodiments, the waterproof covering sheet 30 can also be sealed and connected to the outer surface of the roof panel 20 and the inner wall 12 surface respectively by hot air welding. The specific method of sealing and connecting the waterproof covering sheet 30 to the outer surface of the roof panel 20 and the inner wall 12 surface is not limited here, and can be set according to actual use requirements.

[0044] Reference Figure 1 and Figure 2 As shown, exemplarily, the upper portion of the inner wall 12 is bent toward one end away from the gutter groove to form a fixed wall 14. The roof panel 20 is located above the fixed wall 14, and the fixed wall 14 is fixedly connected to the inner surface of the roof panel 20, for example, the fixed wall 14 is fixedly connected to the inner surface of the roof panel 20 by screws.

[0045] In one embodiment, the roof panel 20 includes a first waterproof layer 201 located on the outer surface, the material of the first waterproof layer 201 includes thermoplastic polyolefin, the material of the waterproof covering sheet 30 includes thermoplastic polyolefin, the material of the gutter structure 10 includes thermoplastic polyolefin, the waterproof covering sheet 30 is connected to the first waterproof layer 201 by hot air welding, and the waterproof covering sheet 30 is connected to the inner wall 12 by hot air welding. In this connection mode, the connection between the waterproof covering sheet 30 and the first waterproof layer 201 on the outer surface of the roof panel 20 and the waterproof covering sheet 30 and the inner wall 12 is more firmly connected, will not age due to wind and sun, avoids water leakage at the connection node of the waterproof covering sheet 30, and further improves the waterproof performance of the roof structure.

[0046] Figure 3 FIG. 1 is a schematic diagram of a roof panel structure of a roof structure according to an embodiment of the present disclosure. Figure 3 As shown, in one embodiment, the roof panel 20 may include a first metal plate layer 202 and a first waterproof layer 201 attached to the outer side of the first metal plate layer 202. The first metal plate layer 202 may include a metal plate, for example, the metal plate may be a steel plate or an aluminum plate. The first waterproof layer 201 is attached to the outer side of the first metal plate layer 202, the material of the first waterproof layer 201 may be thermoplastic polyolefin (TPO), the first waterproof layer 201 is a TPO waterproof layer, and the first waterproof layer 201 may be attached to the outer surface of the first metal plate layer 202 through an adhesive layer.

[0047] In one embodiment, the waterproof cover sheet 30 is made of thermoplastic polyolefin. Exemplarily, the waterproof cover sheet 30 is made of thermoplastic polyolefin.

[0048] In one embodiment, the width of the hot air welding connection is greater than 40 mm. The width of the hot air welding connection can represent the effective size of the welding connection between the waterproof covering sheet 30 and the first waterproof layer 21 and the waterproof covering sheet 30 and the inner side wall 12. The width of the hot air welding connection is set to be greater than 40 mm, which can ensure the structural strength and stability of the connection between the waterproof covering sheet 30 and the roof panel 20 and the inner side wall 12, and improve the waterproof performance of the waterproof covering sheet 30.

[0049] For example, the width of the hot air welding connection is 40 mm, 50 mm, 60 mm, and 70 mm. The specific size of the width of the hot air welding connection can be set according to actual use requirements and is not limited here.

[0050] Reference Figure 1 and Figure 2As shown, in one embodiment, one end of the roof panel 20 facing the gutter structure 10 is flush with the inner wall 12. Exemplarily, one end of the roof panel 20 facing the gutter structure 10 (i.e., the left end of the roof panel 20) is planar. Since the right end of the roof panel 20 is inclined upward relative to the left end, the end of the roof panel 20 facing the gutter structure 10 is flush with the inner wall 12. It can be understood that the upper edge of the left end of the roof panel 20 is flush with the inner wall 12. The end surface of the roof panel 20 facing the gutter structure 10 is flush with the extension plane of the inner wall 12, which can prevent the roof panel 20 from extending into the gutter groove of the gutter structure 10 and avoid the water flow in the gutter groove from infiltrating when it gathers under the roof panel 20. Moreover, the end surface of the roof panel 20 facing the gutter structure 10 is flush with the inner wall 12, which can further improve the overall aesthetics of the gutter structure 10 and the end of the roof panel.

[0051] Reference Figure 1 and Figure 2 As shown, in one embodiment, the roof structure also includes a first purlin 40, which is located on the lower side of the roof panel 20, the first purlin 40 is close to the gutter structure 10, the fixing wall 14 is located between the first purlin 40 and the inner surface of the roof panel 20, and the first screw M1 passes through the roof panel 20, the fixing wall 14 and is fixedly connected to the first purlin 40.

[0052] Reference Figure 2 As shown, exemplarily, the first purlin 40 includes a first main body 41 and a first bending portion 42 and a second bending portion 43 located at both ends of the first main body 41. The first main body 41 can be fixedly connected to the main structural steel column by screws or bolts. The first bending portion 42 is located at the top of the first main body 41, and the fixed wall 14 overlaps the outer end surface of the first bending portion 42. The roof panel 20 is located on the upper side end surface of the fixed wall 14, that is, the fixed wall 14 is clamped between the roof panel 20 and the first bending portion 42. The first screw M1 passes through the roof panel 20, the fixed wall 14 and the first bending portion 42, and fixes the roof panel 20, the fixed wall 14 and the first purlin 40. Therefore, the fixed wall 14, the first purlin 40 and the roof panel 20 of the gutter structure are connected and fixed by the first screw M1, which facilitates the installation and disassembly of the roof panel 20 and the gutter structure 10.

[0053] Exemplarily, the first screw M1 may include a rivet, a self-tapping screw, a non-self-tapping screw, or other components that can play a role in fixing and connecting. Exemplarily, the first screw M1 may be a self-tapping screw for easy connection.

[0054] Exemplarily, the first screws M1 include multiple groups, each group includes one or more first screws M1, for example, in the embodiment of the present disclosure, one group includes three first screws M1. The multiple groups of first screws are arranged along the extension direction of the gutter structure 10 to fix the roof panel 20 and the fixed wall 14 of the gutter structure 10, which can further improve the stability and reliability of the connection of the roof panel 20 and improve the wind resistance of the roof panel 20.

[0055] Reference Figure 2 As shown, in one embodiment, the waterproof covering sheet 30 covers the first screw M1. With such a configuration, a sealed space is formed between the waterproof covering sheet 30 and the outer surface of the roof panel 20, and the first screw M1 is entirely located in the sealed space to prevent liquid from flowing to the first screw M1. The waterproof covering sheet 30 can protect the first screw M1 from corrosion, thereby further preventing water from seeping into the position of the first screw M1, and further improving the waterproof performance of the roof panel.

[0056] Exemplarily, the number of the first screws M1 is three, and the first screws M1 are fixed at intervals along the extending direction of the fixing wall 14 , and the waterproof covering sheet 30 can cover all three first screws M1 .

[0057] Figure 4 A schematic cross-sectional view of a roof panel of a roof structure according to an embodiment of the present disclosure; Figure 5 It is a schematic cross-sectional view of the overlapping direction of the roof panels of the roof structure of the embodiment of the present disclosure; Figure 6 It is an enlarged schematic diagram of the overlapping positions of the roof panels of the roof structure of the embodiment of the present disclosure. Figure 6 Can be Figure 5 A partial structural enlargement diagram. Figures 4 to 6 As shown, in one embodiment, in the extension direction of the gutter structure 10, the roof panel 20 includes a first end 21 and a second end 22 that are relatively arranged, the first end 21 includes a first regional portion 211 and a second regional portion 212, the second regional portion 212 protrudes relative to the first regional portion 211, the second end 22 includes a third regional portion 221 and a fourth regional portion 222, the third regional portion 221 protrudes relative to the fourth regional portion 222, the third regional portion 221 matches the first regional portion 212, and the second regional portion 212 matches the fourth regional portion 222.

[0058] Reference Figure 4 As shown, illustratively, the second region portion 212 protrudes relative to the first region portion 211, and a step surface is formed between the second region portion 212 and the first region portion 211. The third region portion 221 protrudes relative to the fourth region portion 222, and a step surface is formed between the third region portion 221 and the fourth region portion 222. After the first end portion 21 and the second end portion 22 are butted, the second region portion 211 and the third region portion 221 are overlapped.

[0059] It should be noted that the third region portion 221 matches the first region portion 212, and the second region portion 212 matches the fourth region portion 222. It can be understood that when the second region portion 211 and the third region portion 221 are overlapped and connected, the relative surfaces are parallel. For example, the third region portion 221 can be attached to the side of the first region portion 211, and a sealing material sealing arrangement can be set between the third region portion 221 and the first region portion 211. The second region portion 212 can be attached to the side of the fourth region portion 222, and a sealing material sealing arrangement can be set between the second region portion 212 and the fourth region portion 222. The upper surface of the second region portion 212 is parallel to the lower surface of the third region portion 221.

[0060] Reference Figure 5 and Figure 6 As shown, exemplarily, in the extension direction of the gutter structure 10, two adjacent roof panels 20 are respectively the first roof panel 20a and the second roof panel 20b, the first end 21 of the first roof panel 20a and the second end 22 of the second roof panel 20b are arranged opposite to each other, the third area portion 221 and the second area portion 212 are overlapped and connected, and the first screw M1 passes through the corresponding third area portion 221 and the second area portion 212 and is fixedly connected to the first purlin 40.

[0061] In the roof structure of the embodiment of the present disclosure, the first end 21 of the first roof panel 20a is arranged opposite to the second end 22 of the second roof panel 20b, and the third area portion 221 is overlapped and connected with the second area portion 212. The installation of the roof panel is simple, which effectively reduces the installation difficulty and improves the construction efficiency. The first screw M1 penetrates the corresponding third area portion 221 and the second area portion 212 and is fixedly connected with the first purlin 40. With such an arrangement, the first screw M1 can penetrate the metal sheet layers on both sides of the roof panel at the same time, thereby increasing the connection strength, improving the wind-resistant performance of the roof panel, and ensuring the stability of the roof structure.

[0062] Reference Figure 5 and Figure 6 As shown, in one embodiment, the first area portion 211 and the third area portion 221 are located outside relative to the second area portion 212 and the fourth area portion 222, the outer surface of the third area portion 221 forms a recessed area relative to the outer surface of the roof panel 20, the upper end head of the first screw M1 is located in the recessed area, and the height of the upper end head of the first screw M1 is less than the depth of the recessed area. With such a configuration, the first screw M1 is formed in the recessed area, and the upper end head of the first screw M1 does not need to be directly exposed outdoors, which reduces the cold bridge and thermal bridge effects of the first screw M1 and avoids the appearance of condensed water at the upper end head position of the first screw M1.

[0063] Reference Figure 5 and Figure 6As shown, exemplarily, the roof structure further includes a waterproof covering strip, which is arranged on the outer surface of the roof panel, the first screw M1 is arranged along the extension direction of the gutter structure, and the waterproof covering strip covers the first screw M1 along the extension direction of the gutter structure. The waterproof covering strip includes a thermoplastic polyolefin material, the roof panel includes a first waterproof layer, the first waterproof layer includes a thermoplastic polyolefin material, and the two side edges of the waterproof covering strip are sealed and connected to the first waterproof layer by hot air welding. With such a configuration, the waterproof covering strip can enclose the first screw M1 in a closed space to prevent liquid from flowing to the first screw M1, and can further prevent water seepage at the position of the first screw M1, thereby further improving the waterproof performance of the roof structure.

[0064] Reference Figure 1 and Figure 2 As shown, in one embodiment, the roof structure further includes a main structural steel column 50, the bottom wall 11 is located above the main structural steel column 50, a thermal insulation material 60 is arranged between the bottom wall 11 and the main structural steel column 50, and a thermal insulation material 60 is arranged between the inner wall 12 and the first purlin 40. Exemplarily, the thermal insulation material 60 is thermal insulation cotton.

[0065] Reference Figure 1 As shown, exemplarily, the outer surface of the main structural steel column 50 is provided with ribs, the first main body 41 of the first purlin 40 can be fixedly connected to the main structural steel column 50 by screws or bolts, and the first bent portion 42 is located at the top of the first main body 41 and is fixedly connected to the roof panel 20 by screws. A gap is formed between the bottom wall 11 and the main structural steel column 50, and a gap is formed between the first purlin 40 and the inner wall 12. The thermal insulation material 60 is filled in the gap formed by the bottom wall 11 and the main structural steel column 50 and the gap formed by the first purlin 40 and the inner wall 12, so that the cold bridge and thermal bridge effects of the main structural steel column 50, the first purlin 40 and the gutter structure 10 can be avoided, the thermal insulation performance of the roof structure is improved, and it is beneficial to energy saving and consumption reduction of the building.

[0066] Reference Figure 1As shown, in one embodiment, the roof structure further includes a main structural steel column 50 and a parapet 70. The bottom wall 11 is located above the main structural steel column 50. The parapet 70 includes a wall outer panel 71 and a parapet back panel 72. The wall outer panel 71 is located outside the main structural steel column 50 and a preset gap is set between the wall outer panel 71 and the main structural steel column 50. The upper end of the wall outer panel 71 is higher than the upper end of the outer wall 13, and a second purlin 80 is set between the wall outer panel 71 and the outer wall 13. The parapet back panel 72 is located on the side of the outer wall 13 facing the gutter groove, and the lower part of the parapet back panel 72 is stacked with the upper part of the outer wall 13 and connected to the second purlin 80 by a second screw M2. With such an arrangement, the outer side wall 13 of the gutter structure 10 and the parapet back plate 72 are stacked, and the second screws M2 pass through the outer side wall 13 and the parapet back plate 72 to be connected and fixed to the second purlin 80, so that the installation and disassembly of the gutter structure 10 are convenient.

[0067] Exemplarily, the upper end of the outer wall 13 is higher than the upper end of the inner wall 12, and the upper end of the outer wall higher than the inner wall 12 is connected and fixed to the parapet backboard 72 and the second purlin 80 by the second screw M2, so as to prevent the water in the gutter groove from corroding the second screw M2.

[0068] Reference Figure 1 As shown, in one embodiment, the inner side of the wall outer panel 71 is provided with a heat-insulating material 60, and the second purlin 80 is filled with the heat-insulating material 60. Exemplarily, the heat-insulating material can be heat-insulating cotton. Such a setting can avoid the cold bridge and heat bridge effect of the wall outer panel 71 and the second purlin 80, which is beneficial to improving the heat-insulating performance of the parapet of the roof structure, and is beneficial to energy saving and consumption reduction of the building.

[0069] Reference Figure 1 As shown, in one embodiment, the roof structure further includes a sealing plug 90, which is used to cover the exposed end of the second screw M2. This arrangement can further improve the waterproof performance of the connection position between the parapet backboard 72 and the outer wall 13, and can also protect the second screw M2 and prevent the second screw M2 from corrosion, thereby further preventing water seepage at the position of the second screw M2, and further improving the waterproof performance of the roof panel.

[0070] Reference Figure 1 As shown, in one embodiment, the parapet 70 further includes a parapet cap 73, which is buckled on the upper ends of the wall outer plate 71 and the parapet back plate 72. Exemplarily, the parapet cap 73 is covered on the top of the parapet to seal the top of the parapet 70. The parapet cap includes a cap body and buckling parts located on both sides of the cap body, and the buckling parts are respectively attached to the parapet outer plate 71 and the parapet back plate 72 and fixedly connected by screws.

[0071] As a second aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a building, comprising the roof structure of any disclosed embodiment of the present disclosure.

[0072] The roof structure of the above-mentioned embodiment and other components of the building can adopt various technical solutions known to ordinary technicians in this field now and in the future, and will not be described in detail here.

[0073] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0074] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0075] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0076] In the present disclosure, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0077] The disclosure above provides many different embodiments or examples to implement different structures of the present disclosure. In order to simplify the present disclosure, the components and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0078] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A roof structure, characterized in that: include: The gutter structure comprises a bottom wall and an inner wall and an outer wall respectively connected to two ends of the bottom wall, wherein the upper portion of the inner wall is bent toward a side away from the gutter groove to form a fixed wall; A roof panel, located above the fixed wall, the fixed wall is fixedly connected to the inner surface of the roof panel, and one end of the roof panel facing the gutter structure does not intersect with the plane where the inner wall is located; A waterproof covering sheet extends along the extension direction of the gutter structure and extends from the outer surface of the roof panel to the inner wall surface. The waterproof covering sheet is sealed and connected to the outer surface of the roof panel and the inner wall surface respectively.

2. The roof structure according to claim 1, characterized in that: The roof panel includes a first waterproof layer located on the outer surface, the material of the first waterproof layer includes thermoplastic polyolefin, the material of the waterproof covering sheet includes thermoplastic polyolefin, the material of the gutter structure includes thermoplastic polyolefin, the waterproof covering sheet is connected to the first waterproof layer by hot air welding, and the waterproof covering sheet is connected to the inner wall by hot air welding.

3. The roof structure according to claim 2, characterized in that: The width of the hot air welding connection is greater than 40 mm.

4. The roof structure according to claim 1, characterized in that: One end of the roof panel facing the gutter structure is arranged flush with the inner wall.

5. The roof structure according to claim 1, characterized in that: The roof structure also includes a first purlin, which is located at the lower side of the roof panel and close to the gutter structure. The fixed wall is located between the first purlin and the inner surface of the roof panel, and a first screw passes through the roof panel and the fixed wall to be fixedly connected to the first purlin.

6. The roof structure according to claim 5, characterized in that: The waterproof covering sheet covers the first screw.

7. The roof structure according to claim 5 or 6, characterized in that: In the extension direction of the gutter structure, the roof panel includes a first end and a second end that are oppositely arranged, the first end includes a first area portion and a second area portion, the second area portion protrudes relative to the first area portion, the second end includes a third area portion and a fourth area portion, the third area portion protrudes relative to the fourth area portion, the third area portion matches the first area portion, and the second area portion matches the fourth area portion; In the extension direction of the gutter structure, two adjacent roof panels are respectively the first roof panel and the second roof panel, the first end of the first roof panel is arranged opposite to the second end of the second roof panel, the third area portion is overlapped with the second area portion, and the first screw passes through the corresponding third area portion and the second area portion and is fixedly connected to the first purlin.

8. The roof structure according to claim 7, characterized in that: The first area portion and the third area portion are located on the outside relative to the second area portion and the fourth area portion, the outer surface of the third area portion forms a recessed area relative to the outer surface of the roof panel, the upper end head of the first screw is located in the recessed area, and the height of the upper end head of the first screw is less than the depth of the recessed area.

9. The roof structure according to claim 5, characterized in that: It also includes a main structural steel column, the bottom wall is located above the main structural steel column, a heat-insulating material is arranged between the bottom wall and the main structural steel column, and a heat-insulating material is arranged between the inner wall and the first purlin.

10. The roof structure according to claim 1, characterized in that: The roof structure also includes a main structural steel column and a parapet, the bottom wall is located above the main structural steel column, the parapet includes a wall outer panel and a parapet back panel, the wall outer panel is located on the outer side of the main structural steel column and a preset gap is set between the wall outer panel and the main structural steel column, the upper end of the wall outer panel is higher than the upper end of the outer side wall, a second purlin is set between the wall outer panel and the outer side wall, the parapet back panel is located on the side of the outer side wall facing the gutter groove, the lower part of the parapet back panel is stacked with the upper part of the outer side wall and connected to the second purlin by a second screw.

11. The roof structure according to claim 10, characterized in that: The inner side of the wall outer panel is provided with a heat-insulating material, and the second purlin is filled with the heat-insulating material.

12. The roof structure according to claim 10, characterized in that: The roof structure also includes a sealing plug, which is used to seal the exposed end of the second screw.

13. The roof structure according to claim 10, characterized in that: It also includes a parapet cap, which is buckled on the upper ends of the wall outer plate and the parapet back plate.

14. A building, characterized in that: Comprising the roof structure according to any one of claims 1 to 13.

Images