Roof structure comprising deformation joint

Abstract

The utility model discloses a roof structure comprising a deformation joint, and belongs to the technical field of building deformation joints. The waterproof structure solves the problems that the waterproof effect of a deformation joint on an existing roof is poor, and the waterproof effect of a waterproof layer laid on the outer side wall of a parapet wall is damaged by water left along the parapet wall. The waterproof structure comprises a deformation joint, a first roof panel, a second roof panel, a first waterproof structure assembly, a first protruding piece, a second protruding piece and a steel structure cover, wherein the first protruding piece is arranged on the outer wall of a first parapet wall; a second protruding piece is arranged on the outer wall of the second parapet wall; the steel structure cover covers the upper portion of the first waterproof structure assembly, the first waterproof structure assembly is covered with the steel structure cover, the first end of the steel structure cover extends out of the outer side of the first protruding piece, and the second end of the steel structure cover is arranged on the second protruding piece. According to the structure, the waterproof effect of the deformation joint is improved, the deformation joint is not left along the side wall of the parapet wall, and the waterproof effect of a waterproof layer on the side wall of the parapet wall is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of building deformation joints, in particular to a roof structure comprising deformation joints. Background Art

[0002] When the length of a building is long, expansion joints should be designed to solve the problem of structural stress damage caused by uneven deformation of the concrete structure due to its excessive length.

[0003] The structure of the existing roof expansion joint is: a high parapet and a low parapet are set on the roof panels on both sides of the expansion joint, one end of the cantilevered eaves is set on the high parapet, and the other end extends horizontally to the low parapet and extends out of the low parapet. This arrangement has the following shortcomings:

[0004] 1. Water flows into the expansion joint from the gap between the cantilevered eaves and the low parapet, causing water leakage in the expansion joint.

[0005] 2. Water flows along the outer wall of the high parapet and / or the outer wall of the low parapet into the roof waterproof layer laid on the outer wall of the parapet, destroying the waterproof effect of the roof waterproof layer. Utility Model Content

[0006] In view of the above analysis, the utility model aims to provide a roof structure including an expansion joint, so as to solve the problems that the expansion joint on the existing roof has a poor waterproof effect and the water left along the parapet destroys the waterproof effect of the roof waterproof layer laid on the outer wall of the parapet.

[0007] The purpose of this utility model is mainly achieved through the following technical solutions:

[0008] The utility model provides a roof structure including a deformation joint, including a deformation joint, a first roof panel, a second roof panel, a first waterproof structure component, a first protruding piece, a second protruding piece and a steel structure cover;

[0009] The first roof panel and the second roof panel are arranged on both sides of the deformation joint;

[0010] The first waterproof structure assembly includes a first parapet, a second parapet and a horizontal cover plate, wherein the first parapet is higher than the second parapet;

[0011] The first parapet is arranged on the first roof panel;

[0012] The second parapet is arranged on the second roof panel;

[0013] The horizontal cover plate is used to cover the deformation joint, and the first end of the horizontal cover plate is arranged on the first parapet wall, and the second end extends out of the second parapet wall;

[0014] A first protruding member is disposed on the outer wall of the first parapet;

[0015] A second protruding member is provided on the outer wall of the second parapet;

[0016] The steel structure cover covers the first waterproof structure component, and the first end of the steel structure cover extends out of the outside of the first protruding piece, and the second end is arranged on the second protruding piece.

[0017] Further, a framework is included;

[0018] The frame is arranged between the steel structure cover and the first waterproof structure assembly.

[0019] Further, the frame includes a first frame unit and a second frame unit connected to the first frame unit.

[0020] Furthermore, it also includes a shielding member;

[0021] The shielding member covers the lower end opening of the deformation joint.

[0022] Further, the side where the first parapet is located is set as the right side of the deformation joint, and the side where the second parapet is located is set as the left side of the deformation joint;

[0023] The steel structure cover comprises a first steel plate layer, a second steel plate layer and a third steel plate layer which are arranged in sequence;

[0024] The first steel plate layer covers the right side of the first waterproof structure component;

[0025] The second steel plate layer covers the top of the horizontal cover plate;

[0026] The third steel plate layer covers the left side of the first waterproof structure component.

[0027] Furthermore, the second steel plate layer is inclined toward the second parapet wall, with an inclination gradient of 3%-10%.

[0028] Further, the steel structure cover also includes an eagle beak;

[0029] The eagle beak is arranged on the third steel plate layer.

[0030] Furthermore, it also includes a drip corner protection structure;

[0031] The drip corner guard structure includes a first drip corner guard and a second drip corner guard;

[0032] The first drip corner guard is arranged on the first protruding member;

[0033] The second drip guard is arranged on the second protruding piece.

[0034] Further, it also includes a thermal insulation structure;

[0035] The heat preservation structure comprises a first heat preservation unit and a second heat preservation unit;

[0036] The first thermal insulation unit is arranged between the first parapet and the second parapet;

[0037] The second heat-insulating unit is arranged between the second parapet and the horizontal cover plate.

[0038] Further, a protective structure is included;

[0039] The protective structure includes a first protective layer and a second protective layer;

[0040] The first protective layer is arranged between the bottom surface of the first protruding member and the first roof panel, and is laid on the outer wall surface of the first parapet;

[0041] The second protective layer is arranged between the bottom surface of the second protruding piece and the second roof panel, and is laid on the outer wall surface of the second parapet.

[0042] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0043] 1. The utility model is provided with a steel structure cover, which covers the upper part of the first waterproof structure component. On the one hand, the steel structure cover covers the gap hole between the horizontal cover plate and the second parapet wall to prevent water from entering the deformation joint through the gap hole, thereby improving the waterproof effect of the deformation joint; on the other hand, the steel structure cover guides water to the first protrusion and the second protrusion, and then the water drips from the first protrusion and the second protrusion to the roof waterproof layer of the roof panel, thereby preventing water from flowing along the outer wall of the first parapet wall and the outer wall of the second parapet wall into the roof waterproof layer laid on the side wall of the parapet wall, without damaging the waterproof effect of the roof waterproof layer laid on the outer wall of the first parapet wall and the outer wall of the second parapet wall, thereby improving the service life and waterproof effect of the roof waterproof layer laid on the side wall of the parapet wall.

[0044] 2. The utility model further ensures that water directly drips onto the roof waterproof layer on the roof panel along the first drip corner guard and the second drip corner guard by arranging the first drip corner guard on the first protruding member and the second drip corner guard on the second protruding member, and does not enter the roof waterproof layer laid on the outer wall of the parapet along the outer wall of the first parapet and the outer wall of the second parapet.

[0045] 3. The second steel plate layer in the steel structure cover of the utility model is inclined toward the second parapet wall, so as to guide the water on the second steel plate layer to the second protrusion, and the water drips along the second protrusion to the roof waterproof layer of the roof panel, thereby preventing water from being retained on the second steel plate layer.

[0046] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0048] Figure 1 This is a structural schematic diagram of a roof structure including a deformation joint of the utility model;

[0049] Figure 2 for Figure 1 A schematic structural diagram of the first waterproof structural component;

[0050] Figure 3 for Figure 1 Schematic diagram of the structure of the steel structure cover;

[0051] Figure 4 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0052] Reference numerals:

[0053] 10-deformation joint, 20-first roof panel, 30-second roof panel, 40-first waterproof structure component, 50-first protruding member, 60-second protruding member, 70-steel structure cover, 80-frame, 90-insulation structure, 110-shielding member;

[0054] 401-first parapet, 402-second parapet, 403-horizontal cover plate;

[0055] 701-first steel plate layer, 702-second steel plate layer, 703-third steel plate layer, 704-eagle beak;

[0056] 7031-first step portion, 7032-second step portion, 7033-third step portion;

[0057] 801-first frame unit, 802-second frame unit;

[0058] 8011-first main beam, 8012-second main beam, 8013-third main beam, 8014-fourth main beam, 8015-fifth main beam, 8016-secondary beam;

[0059] 8021-first vertical support member, 8022-second vertical support member, 8023-third vertical support member;

[0060] 901-first heat preservation unit, 902-second heat preservation unit;

[0061] 1001-first protective layer, 1002-second protective layer;

[0062] 1101 - first cover plate, 1102 - first connecting piece, 1103 - second connecting piece, 1104 - third connecting piece;

[0063] 1201-first aesthetic layer, 1202-second aesthetic layer;

[0064] 1301-first water drop corner guard, 1302-second water drop corner guard. DETAILED DESCRIPTION

[0065] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0066] Example

[0067] A specific embodiment of the utility model discloses a roof structure including a deformation joint, such as Figure 1 and Figure 2 As shown, it includes a deformation joint 10, a first roof panel 20, a second roof panel 30, a first waterproof structure assembly 40, a first protruding piece 50, a second protruding piece 60 and a steel structure cover 70; the first roof panel 20 and the second roof panel 30 are arranged on both sides of the deformation joint 10; the first waterproof structure assembly 40 includes a first parapet 401, a second parapet 402 and a horizontal cover plate 403; the first parapet 401 is arranged on the first roof panel 20; the second parapet 402 is arranged on the second roof panel 30; the first parapet 40 1 is higher than the second parapet 402; the horizontal cover plate 403 is used to cover the deformation joint 10, and the first end of the horizontal cover plate 403 is arranged on the first parapet 401, and the second end extends out of the second parapet 402; the first protruding piece 50 is arranged on the outer wall of the first parapet 401; the second protruding piece 60 is arranged on the outer wall of the second parapet 402; the steel structure cover 70 covers the first waterproof structure assembly 40, and the first end of the steel structure cover 70 extends out of the outside of the first protruding piece 50, and the second end is arranged on the second protruding piece 60.

[0068] In this embodiment, the first parapet 401 and the second parapet 402 are arranged opposite to each other, the length direction of the first parapet 401 is the same as the length direction of the deformation joint 10, and the length direction of the second parapet 402 is the same as the length direction of the deformation joint 10.

[0069] In this embodiment, the steel structure cover 70 covers the upper part of the first waterproof structure assembly 40, and the steel structure cover 70 covers the gap hole between the horizontal cover plate 403 and the second parapet 402 to prevent water from entering the deformation joint 10 through the gap hole, thereby further preventing water leakage from the deformation joint.

[0070] In this embodiment, on the one hand, by providing the first protruding piece 50, the lower end of the steel structure cover 70 covers the upper surface of the first protruding piece 50 and protrudes from the outside of the first protruding piece 50, so that the water on the first parapet side of the first waterproof structure assembly 40 flows down along the steel structure cover 70 and drips from the first protruding piece 50 to the roof waterproof layer of the first roof panel 20, and does not enter the roof waterproof layer along the outer wall of the first parapet, thereby avoiding damage to the waterproof effect of the roof waterproof layer. On the other hand, by providing the second protruding piece 60, the lower end of the steel structure cover 70 on the second parapet side is fixed, the stability of the steel structure cover 70 is improved, and the water left on the horizontal cover plate 403 flows down along the steel structure cover 70 and drips from the second protruding piece 60 to the roof waterproof layer of the second roof panel 30, and does not enter the roof waterproof layer along the side wall of the second parapet, thereby avoiding damage to the waterproof effect of the roof waterproof layer.

[0071] Further, considering the fixation of the steel structure cover 70, the roof structure including the deformation joint in this embodiment further includes a frame 80; the frame 80 is arranged between the steel structure cover 70 and the first waterproof structure assembly 40, wherein the frame 80 includes a first frame unit 801 and a second frame unit 802 connected to the first frame unit 801, such as Figure 1 shown.

[0072] In this embodiment, if Figure 1As shown, the first frame unit 801 includes a first main beam 8011, a second main beam 8012, a third main beam 8013, a fourth main beam 8014, a fifth main beam 8015 and a secondary beam 8016, and the second frame unit 802 includes a first vertical support member 8021, a second vertical support member 8022 and a third vertical support member 8023; the first main beam 8011 is arranged on the outer side wall of the first parapet 401 and is arranged above the first protruding member 50; the horizontal plane where the second main beam 8012 is located is higher than the horizontal cover plate 403; the horizontal plane where the third main beam 8013 is located is higher than the horizontal cover plate 404; 03; the fourth main beam 8014 is arranged on the side wall of the second end of the horizontal cover plate 403; the fifth main beam 8015 is arranged on the side wall of the first protruding member 50; the second main beam 8012 and the third main beam 8013 are connected through the secondary beam 8016; the lower end of the first vertical support member 8021 is connected to the first main beam 8011, and the upper end is connected to the second main beam 8012; the lower end of the second vertical support member 8022 is connected to the horizontal cover plate 403, and the upper end is connected to the secondary beam 8016; the lower end of the third vertical support member 8023 is connected to the fourth main beam 8014, and the upper end is connected to the third main beam 8013.

[0073] It should be noted that the length direction of the deformation joint 10 is set as the first direction.

[0074] A plurality of secondary beams 8016 are arranged side by side along the first direction. The plurality of secondary beams 8016 are parallel to each other, and a length direction of the secondary beams 8016 is perpendicular to the first direction.

[0075] The length direction of the first main beam 8011 is parallel to the first direction, and is arranged along the first direction. Considering the weight reduction and durability of the first main beam 8011, the first main beam 8011 is a first steel pipe with a rectangular cross-section.

[0076] The length direction of the second main beam 8012 is parallel to the first direction, and is arranged along the first direction. Considering the weight reduction and durability of the second main beam 8012, the second main beam 8012 is a second steel pipe with a rectangular cross-section.

[0077] The length direction of the third main beam 8013 is parallel to the first direction, and is arranged along the first direction. Considering the weight reduction and durability of the third main beam 8013, the third main beam 8013 is a third steel pipe with a rectangular cross-section.

[0078] The length direction of the fourth main beam 8014 is parallel to the first direction, and is arranged along the first direction. Considering the weight reduction and durability of the fourth main beam 8014, the fourth main beam 8014 is a fourth steel pipe with a rectangular cross-section.

[0079] The length direction of the fifth main beam 8015 is parallel to the first direction, and is arranged along the first direction. Considering the weight reduction and durability of the fifth main beam 8015, the fifth main beam 8015 is a fifth steel tube with a rectangular cross-section.

[0080] A plurality of first vertical support members 8021 are arranged side by side along the first direction, the plurality of first vertical support members 8021 are arranged parallel to each other, and the length direction of the first vertical support members 8021 is perpendicular to the first direction, and the plurality of first vertical support members 8021 have the same length.

[0081] A plurality of second vertical support members 8022 are arranged side by side along the first direction, the plurality of second vertical support members 8022 are arranged parallel to each other, and the length direction of the second vertical support members 8022 is the same as the first direction. Preferably, the second vertical support members 8022 are arranged along the first direction.

[0082] A plurality of third vertical support members 8023 are arranged side by side along the first direction, the plurality of third vertical support members 8023 are arranged parallel to each other, and the length direction of the third vertical support members 8023 is perpendicular to the first direction, and the plurality of third vertical support members 8023 have the same length.

[0083] Further, considering that the steel structure cover 70 completely covers the upper part of the first waterproof structure assembly 40, as shown in FIG. Figure 1 and Figure 3 As shown, the steel structure cover 70 includes a first steel plate layer 701, a second steel plate layer 702 and a third steel plate layer 703 arranged in sequence, wherein the first steel plate layer 701, the second steel plate layer 702 and the third steel plate layer 703 are sealed and connected, and each steel plate layer covers the outer surface of the first waterproof structure component 40.

[0084] In this embodiment, the length direction of the deformation joint 10 is set to the first direction, the side where the first parapet 401 is located is the right side of the deformation joint 10, and the side where the second parapet 402 is located is the left side of the deformation joint 10; the steel structure cover 70 includes a first steel plate layer 701, a second steel plate layer 702 and a third steel plate layer 703 arranged in sequence; the first steel plate layer 701 covers the right side of the first waterproof structure component 40; the second steel plate layer 702 covers the top of the horizontal cover plate 403; the third steel plate layer 703 covers the left side of the first waterproof structure component 40.

[0085] It should be noted that the first steel plate layer 701 covers the right side of the first waterproof structure component 40, specifically: the first steel plate layer 701 covers the outer surface of the first protruding member 50, the outer wall surface of the first parapet 401 and the side wall surface of the first end of the horizontal cover plate 403 along the first direction. The third steel plate layer 703 covers the left side of the first waterproof structure component 40, specifically: the third steel plate layer 703 covers the side wall surface of the second end of the horizontal cover plate 403, the gap hole and the outer surface of the second protruding member 60 along the first direction, wherein the gap hole refers to the gap hole between the bottom surface of the horizontal cover plate 403 and the upper surface of the second parapet 402.

[0086] It should be noted that, considering the fixing stability of the first steel plate layer 701, the first steel plate layer 701 is fixedly connected to the first main beam 8011, and the first steel plate layer 701 is also fixedly connected to the first vertical support member 8021, and the fixed connection is a threaded connection.

[0087] It should be noted that, considering the fixing stability of the second steel plate layer 702, the second steel plate layer 702 is fixedly connected to the secondary beam 8016, wherein the fixed connection is a threaded connection.

[0088] It should be noted that, considering the fixing stability of the third steel plate layer 703, the third steel plate layer 703 is fixedly connected to the fourth main beam 8014, and the third steel plate layer 703 is also fixedly connected to the fifth main beam, wherein the fixed connection is a threaded connection.

[0089] In this embodiment, in order to solve the drainage problem on the top of the steel structure cover 70, the second steel plate layer 702 is inclined toward the second parapet 402, and the inclination slope is 3%-10%, wherein the inclination slope is preferably 5%.

[0090] In this embodiment, the cross section of the third steel plate layer 703 is a step-shaped cross section. Figure 1 As shown, from bottom to top are the first step portion 7031, the second step portion 7032 and the third step portion 7033. The first step portion 7031 is arranged at the lower part of the fifth main beam 8015, the second step portion 7032 is arranged between the fifth main beam 8015 and the fourth main beam 8014, and the third step portion 7033 is arranged between the fourth main beam 8014 and the second steel plate layer 702. That is, compared with the third step portion 7033, the second step portion 7032 is concave toward the second parapet 402 side of the first waterproof structure assembly 40.

[0091] It should be noted that, because the second steel plate layer 702 is inclined toward the second parapet 402, all the water on the top of the steel structure cover 70 flows down from the second parapet 402. In order to relieve the drainage pressure of the second protruding member 60 fixed on the second parapet 402, the hawk beak 704 is provided. Figure 3As shown, the eagle beak 704 is arranged on the third steel plate layer 703, that is, the eagle beak 704 is arranged between the bottom surface of the horizontal cover plate 403 and the top surface of the second parapet 402, and is located on the outside of the second parapet. Preferably, the eagle beak 704 is arranged at the lower end of the third step portion 7033.

[0092] Further, considering the drainage of the first protruding member 50 and the second protruding member 60, the roof structure including the deformation joint of the present embodiment further includes a drip corner structure, and the drip corner structure includes a first drip corner 1301 and a second drip corner 1302, such as Figure 2 As shown; the first drip corner guard 1301 is arranged on the first protruding member 50; the second drip corner guard 1302 is arranged on the second protruding member 60.

[0093] Furthermore, considering that cold air may enter the interior of the building along the deformation joint 10 and affect the temperature inside the building, the roof structure including the deformation joint in this embodiment is further provided with an insulation structure 90, such as Figure 1 As shown, the insulation structure includes a first insulation unit 901 and a second insulation unit 902 ; the first insulation unit 901 is arranged between the first parapet 401 and the second parapet 402 ; the second insulation unit 902 is arranged between the second parapet 402 and the horizontal cover plate 403 .

[0094] Furthermore, considering that water flows along the outer surface of the first protruding member 50 on the outer wall of the first parapet 401 and then flows into the roof waterproof layer, and considering that water flows along the outer surface of the second protruding member 60 on the outer wall of the second parapet 402 and then flows into the roof waterproof layer, thereby destroying the waterproof effect of the roof waterproof layer, the roof structure including the deformation joint of this embodiment is further provided with a protective structure, such as Figure 1 As shown, the protection structure includes a first protection layer 1001 and a second protection layer 1002 .

[0095] like Figure 1 As shown, the first protective layer 1001 is arranged between the bottom surface of the first protrusion 50 and the upper surface of the first roof panel 20, and is laid on the outer wall surface of the first parapet 401 to prevent water diverted from the first protrusion 50 from flowing into the roof waterproofing layer through the outer wall surface of the first parapet 401.

[0096] like Figure 1 As shown, the second protective layer 1002 is arranged between the bottom surface of the second protrusion 60 and the upper surface of the second roof panel 30, and is laid on the outer wall surface of the second parapet 402 to prevent water diverted from the second protrusion 60 from flowing into the roof waterproofing layer through the outer wall surface of the second parapet 402.

[0097] In this embodiment, considering the aesthetics of the outer surface of the protective structure, the roof structure including the deformation joint of this embodiment is also provided with an aesthetic structure, such as Figure 1As shown, the aesthetic structure includes a first aesthetic layer 1201 and a second aesthetic layer 1202 . The first aesthetic layer 1201 is laid on the outer surface of the first protective layer 1001 , and the second aesthetic layer is laid on the outer surface of the second protective layer 1002 .

[0098] Furthermore, considering that the deformation joint inside the building affects the beauty of the house, the roof structure including the deformation joint in this embodiment is further provided with a shielding member 110, such as Figure 1 and Figure 4 As shown, the shielding member 110 covers the deformation joint inside the building, and the shielding member 110 includes a first cover plate 1101, a first connecting member 1102, a second connecting member 1103 and a third connecting member 1104. The first connecting member 1102 is arranged on the first side of the deformation joint 10 and is fixedly connected to the first roof panel 20, the second connecting member 1103 is arranged on the second side of the deformation joint 10 and is fixedly connected to the second roof panel 30, the first connecting member 1102 and the second connecting member 1103 are arranged opposite to each other, the first end of the third connecting member 1104 is connected to the first connecting member 1102, the second end of the third connecting member 1104 is connected to the first connecting member 1102, and the first cover plate 1101 covers the deformation joint 10 and is fixedly connected to the third connecting member 1104.

[0099] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A roof structure including a deformation joint, characterized in that: It comprises a deformation joint (10), a first roof panel (20), a second roof panel (30), a first waterproof structure component (40), a first protruding piece (50), a second protruding piece (60) and a steel structure cover (70); The first roof panel (20) and the second roof panel (30) are arranged on both sides of the deformation joint (10); The first waterproof structure assembly (40) comprises a first parapet (401), a second parapet (402) and a horizontal cover plate (403), wherein the first parapet (401) is higher than the second parapet (402); The first parapet (401) is arranged on the first roof panel (20); The second parapet wall (402) is arranged on the second roof panel (30); The horizontal cover plate (403) is used to cover the deformation joint (10), and the first end of the horizontal cover plate (403) is arranged on the first parapet (401), and the second end extends out of the outside of the second parapet (402); The first protruding member (50) is arranged on the outer wall of the first parapet (401); The second protruding member (60) is arranged on the outer wall of the second parapet (402); The steel structure cover (70) covers the first waterproof structure assembly (40), and the first end of the steel structure cover (70) extends out of the outside of the first protruding piece (50), and the second end is arranged on the second protruding piece (60).

2. The roof structure comprising a deformation joint according to claim 1, characterized in that: Also comprising a frame (80); The frame (80) is arranged between the steel structure cover (70) and the first waterproof structure assembly (40).

3. The roof structure comprising a deformation joint according to claim 2, characterized in that: The frame (80) includes a first frame unit (801) and a second frame unit (802) connected to the first frame unit (801).

4. The roof structure comprising a deformation joint according to claim 1, characterized in that: Also includes a shielding member (110); The shielding member (110) covers the lower end opening of the deformation joint (10).

5. The roof structure comprising a deformation joint according to claim 1, characterized in that: The side where the first parapet (401) is located is set as the right side of the deformation joint (10), and the side where the second parapet (402) is located is set as the left side of the deformation joint (10); The steel structure cover (70) comprises a first steel plate layer (701), a second steel plate layer (702) and a third steel plate layer (703) which are arranged in sequence; The first steel plate layer (701) covers the right side of the first waterproof structural component (40); The second steel plate layer (702) covers the horizontal cover plate (403); The third steel plate layer (703) covers the left side of the first waterproof structural component (40).

6. The roof structure comprising a deformation joint according to claim 5, characterized in that: The second steel plate layer (702) is inclined toward the second parapet (402) with a slope of 3%-10%.

7. The roof structure comprising a deformation joint according to claim 5, characterized in that: The steel structure cover (70) further includes a beak (704); The eagle beak (704) is arranged on the third steel plate layer (703).

8. The roof structure comprising a deformation joint according to claim 1, characterized in that: It also includes drip corner protection structure; The drip corner protection structure comprises a first drip corner protection (1301) and a second drip corner protection (1302); The first drip corner guard (1301) is arranged on the first protruding piece (50); The second drip guard (1302) is arranged on the second protruding piece (60).

9. The roof structure comprising a deformation joint according to claim 1, characterized in that: Also includes a thermal insulation structure (90); The heat preservation structure (90) comprises a first heat preservation unit (901) and a second heat preservation unit (902); The first heat preservation unit (901) is arranged between the first parapet (401) and the second parapet (402); The second heat-insulating unit (902) is arranged between the second parapet (402) and the horizontal cover plate (403).

10. The roof structure comprising a deformation joint according to claim 1, characterized in that: It also includes protective structures; The protection structure comprises a first protection layer (1001) and a second protection layer (1002); The first protective layer (1001) is arranged between the bottom surface of the first protruding piece (50) and the upper surface of the first roof panel (20), and is laid on the outer wall surface of the first parapet (401); The second protective layer (1002) is arranged between the bottom surface of the second protruding piece (60) and the upper surface of the second roof panel (30), and is laid on the outer wall surface of the second parapet (402).

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