Steel roof with reserved deformation space

Abstract

The utility model discloses a steel roof with a reserved deformation space, the steel roof comprises a first composite steel plate, a second composite steel plate and a flexible prefabricated member, the first composite steel plate is lapped on the second composite steel plate, the first composite steel plate is close to a ridge, and the second composite steel plate is close to an eave; the flexible prefabricated member comprises a first connecting part, a second connecting part and a convex part; the first connecting part is connected with the first composite steel plate; the second connecting part is connected with the second composite steel plate; and the lug boss is arranged between the first connecting part and the second connecting part. The steel roof is high in sealing performance, deformation space is reserved, and the problem that connection is not firm due to deformation of the steel plates is solved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a steel roof with a reserved deformation space. Background Art

[0002] In recent years, many buildings such as factories and stadiums have adopted steel roofs. The width of the roof is uncertain, and the length of the steel plate used to lay the roof is fixed, so multiple steel plates are needed for splicing. The steel plates are usually laid from low to high, and the upper steel plates overlap the lower steel plates to prevent water leakage by draining water down the water.

[0003] The steel plates are connected by overlapping in the water flow direction. Because they cannot be completely sealed, or because the steel plates are partially deformed due to thermal expansion and contraction, the plates do not fit well together, which leads to air leakage. For example, in rainy days, backflow or suction caused by negative wind pressure can cause water leakage. In addition, people entering the roof can cause deformation of the roof steel plates, which can also cause water leakage.

[0004] Therefore, a technical solution is currently needed to solve the problem of loose connection of steel plate roof. Utility Model Content

[0005] In view of this, the utility model proposes a steel roof with a reserved deformation space. The steel roof has strong sealing performance and a reserved deformation space to avoid the problem of loose connection caused by deformation of the steel plate.

[0006] The utility model provides the following technical solutions:

[0007] A steel roof comprises a first composite steel plate, a second composite steel plate, and a flexible prefabricated member, wherein the first composite steel plate is overlapped on the second composite steel plate, and the first composite steel plate is close to the ridge, and the second composite steel plate is close to the eaves; the flexible prefabricated member comprises a first connecting portion, a second connecting portion, and a protruding portion; the first connecting portion is connected to the first composite steel plate; the second connecting portion is connected to the second composite steel plate; and the protruding portion is arranged between the first connecting portion and the second connecting portion.

[0008] The utility model provides the following non-conventional optional methods:

[0009] The raised portion includes a first part and a second part connected to each other, wherein the first part is close to the ridge and the second part is close to the eaves; the connection between the two is the highest point of the raised portion.

[0010] The first portion is a first curved portion, and the second portion is a second curved portion, wherein a curvature radius of the first curved portion is greater than a curvature radius of the second curved portion.

[0011] The first portion is a straight portion, the second portion is a curved portion, and an acute angle is formed between the straight portion and the roof surface on a side close to the eaves.

[0012] The first portion is a curved portion, and the second portion is a straight portion; and the straight portion forms a right angle or an obtuse angle with the roof surface on the side close to the eaves.

[0013] The first part is a first straight portion, and the second part is a second straight portion; wherein the first straight portion forms an acute angle with the roof near the eaves; and the second straight portion forms a right angle or an obtuse angle with the roof near the eaves.

[0014] The first composite steel plate includes a first steel plate and a first flexible layer arranged on a first surface of the first steel plate; the second composite steel plate includes a second steel plate and a second flexible layer arranged on a first surface of the second steel plate; the first connecting portion and the second connecting portion are respectively connected to the first flexible layer and the second flexible layer.

[0015] The overlap width between the second composite steel plate and the first composite steel plate is 200-250 mm.

[0016] The longitudinal width of the first connecting portion and the second connecting portion is at least 60 mm.

[0017] The height of the highest point of the protrusion is not higher than the height of the highest point of the first connection part.

[0018] According to the technical solution of the utility model, the steel roof of the utility model includes a flexible prefabricated part, whose elongation is higher than that of the steel plate, and the convex part thereof reserves a deformation space for the deformation of the composite steel plate, which can prevent the flexible prefabricated part from being punctured when the steel plate is deformed, while ensuring the flow of water. In addition, the flexible prefabricated part makes the entire steel roof form a whole, and the sealing performance is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] For the purpose of illustration and not limitation, the present invention will now be described according to its embodiments, in particular with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a schematic diagram of a steel roof according to an implementation mode of the present utility model.

[0021] Figure 2 for Figure 1 The longitudinal section of the steel roof is obtained by cutting it at the section position A and observing it along the direction shown by the observation direction P.

[0022] Figure 3 It is a partial schematic diagram of a flexible preform according to an embodiment of the utility model.

[0023] in:

[0024] 10. Steel roof; 1. First composite steel plate; 2. Second composite steel plate; 3. Flexible prefabricated part; 31. First connection part; 311. First weld; 32. Second connection part; 321. Second weld; 33. Raised part; 331. First curved part; 332. Second curved part; 11. First steel plate; 12. First flexible layer; 21. Second steel plate; 22. Second flexible layer; P. Observation direction; A. Section position; M. Highest point of the first connection part; N. Highest point of the raised part; E. Lowest point of the first connection part; F. Highest point of the second connection part; L. Lowest point of the second connection part. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive.

[0026] Figure 1 Schematic diagram of a steel roof in an embodiment of the utility model. In the embodiment of the utility model, the steel roof 10 includes a first composite steel plate 1, a second composite steel plate 2, and a flexible prefabricated member 3. The first composite steel plate 1 is overlapped on the second composite steel plate 2, and the first composite steel plate 1 is close to the ridge; the ridge is located at the highest point of the steel roof 10, that is, at Figure 1 The left side of the plane where the steel roof 10 is located; the second composite steel plate 2 is close to the eaves, and the eaves are located at the lowest point of the steel roof 10, that is, located Figure 1 The flexible prefabricated member 3 includes a first connection portion 31, a second connection portion 32 and a protrusion 33; the first connection portion 31 is connected to the first composite steel plate 1; the second connection portion 32 is connected to the second composite steel plate 2; and the protrusion 33 is arranged between the first connection portion 31 and the second connection portion 32. The steel roof 10 forms an angle of 15° to 35° with the ground.

[0027] The raised portion 33 includes a first part and a second part connected to each other, the first part is close to the ridge, and the second part is close to the eaves; the connection between the two is the highest point N of the raised portion. The height of the highest point N of the raised portion is not higher than the height of the highest point M of the first connection portion, wherein the highest point M of the first connection portion is also the highest point of the flexible preform 3. The above-mentioned "highest point" and "height" are relative to the ground (according to Figure 2The vertical distance from the highest point N of the protrusion to the surface of the composite steel plate is usually 3-4 mm; the composite steel plate may be the first composite steel plate 1 or the second composite steel plate 2. For example, Figure 2 In the figure, the vertical distance to the surface of the composite steel plate is the vertical distance from the highest point N of the raised portion to the surface of the second composite steel plate 2. Therefore, the raised portion 33 not only reserves deformation space for the deformation of the composite steel plate, but also facilitates the flow of precipitation, thereby helping to avoid water accumulation on the roof.

[0028] In the embodiment of the present invention, the first portion may be a first curved portion 331, and the second portion may be a second curved portion 332, wherein the first curved portion 331 is close to the ridge, and the second curved portion 332 is close to the eaves; the curvature radius of the first curved portion 331 is greater than the curvature radius of the second curved portion 332, see Figure 1 The cross section is made at the cross-sectional position A described in the figure and observed along the direction indicated by the observation direction P. Figure 2 .

[0029] In an embodiment of the present invention, the first portion may be a straight portion, the second portion may be a curved portion, and an acute angle is formed between the straight portion and the roof surface on the side close to the eaves.

[0030] In an embodiment of the present invention, the first portion may be a curved portion, and the second portion may be a straight portion, and the straight portion forms a right angle or an obtuse angle with the roof surface on the side close to the eaves.

[0031] In an embodiment of the utility model, the first part may also be a first straight portion, and the second part may also be a second straight portion, wherein the first straight portion forms an acute angle with the roof near the eaves, and the second straight portion forms a right angle or an obtuse angle with the roof near the eaves.

[0032] The above embodiments can achieve the effect of reserving deformation space for the composite steel plate by the protrusion 33, and at the same time facilitate precipitation to flow down, which helps to avoid water accumulation on the roof, and further more effectively avoid roof leakage.

[0033] The first composite steel plate 1 includes a first steel plate 11 and a first flexible layer 12 disposed on a first surface of the first steel plate 11; the second composite steel plate 2 includes a second steel plate 21 and a second flexible layer 22 disposed on a first surface of the second steel plate 21. The second surface of the first composite steel plate 1 away from the first flexible layer 12 is usually overlapped above the second flexible layer 22 of the second composite steel plate 2, and the overlap width of the first composite steel plate 1 and the second composite steel plate 2 is 200 to 250 mm.

[0034] The first flexible layer 12 and the second flexible layer 22 are located on the same side of adjacent composite steel plates. The second surface of the first composite steel plate 1 and the second surface of the second composite steel plate 2 may be optionally provided with a flexible layer. The flexible layer, such as the first flexible layer 12 or the second flexible layer 22, may be a polymer waterproofing roll layer, such as a thermoplastic polyolefin (TPO) waterproofing roll; the thickness of the flexible layer, such as the first flexible layer 12 or the second flexible layer 22, may be 0.8 to 2 mm, such as 1.2 to 1.8 mm.

[0035] Figure 3 It is a partial schematic diagram of the flexible preform 3 of the embodiment of the utility model. The first connection part 31 and the second connection part 32 of the flexible preform 3 are connected to the first flexible layer 12 and the second flexible layer 22 by welding, such as hot air welding, to form a first weld 311 and a second weld 321, respectively. The first connection part 31 and the second connection part 32 are parallel to the plane where the roof is located. The longitudinal width of the first connection part 31, that is, the distance from the highest point M of the first connection part to the lowest point E of the first connection part, is at least 60 mm. The longitudinal width of the second connection part 32, that is, the distance from the highest point F of the second connection part to the lowest point L of the second connection part, is at least 60 mm. The lowest point L of the second connection part is also the lowest point of the flexible preform 3. The first weld 311 and the second weld 321 are the parts where the flexible preform 3 is actually melted together with the flexible layer by welding to form an effective connection, and their longitudinal width is at least 15 mm. The term "longitudinal" refers to the longitudinal width of the first connection part 31. Figure 1 The direction parallel to the cross-sectional position A under the viewing angle. The longitudinal width of the flexible preform 3 is adjusted according to the longitudinal width of the composite steel plate used for the roof. The larger the longitudinal width of the composite steel plate, the greater the stress and deformation it generates, and the larger the longitudinal width of the flexible preform 3 needs to be set. The flexible preform 3 can be a waterproof roll material, which has the same or different material as the first flexible layer 12 and the second flexible layer 22. The thickness of the flexible preform 3 can be 1.5 to 2 mm; the longitudinal width, that is, the distance from point M to point L, is greater than or equal to 180 mm, such as 180-500 mm, such as 200-300 mm.

[0036] According to the technical solution of the utility model implementation, the steel roof of the utility model includes a flexible prefabricated part 3, whose elongation is higher than that of the steel plate, and the protrusion 33 therein reserves a deformation space for the deformation of the composite steel plate, which can prevent the flexible prefabricated part 3 from being punctured when the steel plate is deformed, while ensuring the flow of water. In addition, the flexible prefabricated part 3 is integrated with the flexible layer by welding, such as hot air welding, so that the entire steel roof has a strong sealing performance.

[0037] The above specific implementations do not constitute a limitation on the protection scope of the present utility model. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A steel roof, characterized in that: It comprises a first composite steel plate, a second composite steel plate, and a flexible prefabricated part, wherein: The first composite steel plate is overlapped on the second composite steel plate, and the first composite steel plate is close to the ridge, and the second composite steel plate is close to the eaves; The flexible preform comprises a first connecting portion, a second connecting portion and a protruding portion; The first connecting portion is connected to the first composite steel plate; The second connecting portion is connected to the second composite steel plate; And the protrusion is arranged between the first connection part and the second connection part.

2. The steel roof according to claim 1, characterized in that: The raised portion includes a first part and a second part connected to each other, wherein the first part is close to the ridge and the second part is close to the eaves; the connection between the two is the highest point of the raised portion.

3. The steel roof according to claim 2, characterized in that: The first portion is a first curved portion, and the second portion is a second curved portion, wherein: A curvature radius of the first curved portion is greater than a curvature radius of the second curved portion.

4. The steel roof according to claim 2, characterized in that: The first portion is a straight portion, the second portion is a curved portion, and an acute angle is formed between the straight portion and the roof surface on a side close to the eaves.

5. The steel roof according to claim 2, characterized in that: The first portion is a curved portion, and the second portion is a straight portion; and the straight portion forms a right angle or an obtuse angle with the roof surface on the side close to the eaves.

6. The steel roof according to claim 2, characterized in that: The first portion is a first straight portion, and the second portion is a second straight portion; The first straight line portion forms an acute angle with the roof surface on the side close to the eaves; The second straight line portion forms a right angle or an obtuse angle with the roof surface on the side close to the eaves.

7. The steel roof according to any one of claims 1 to 6, characterized in that: The first composite steel plate comprises a first steel plate and a first flexible layer disposed on a first surface of the first steel plate; The second composite steel plate comprises a second steel plate and a second flexible layer disposed on a first surface of the second steel plate; The first connection portion and the second connection portion are connected to the first flexible layer and the second flexible layer, respectively.

8. The steel roof according to claim 1, characterized in that: The overlap width between the second composite steel plate and the first composite steel plate is 200-250 mm.

9. The steel roof according to claim 1, characterized in that: The longitudinal width of the first connecting portion and the second connecting portion is at least 60 mm.

10. The steel roof according to claim 2, characterized in that: The height of the highest point of the protrusion is not higher than the height of the highest point of the first connection part.

Images