Waterproof drainage structure of accessible roof deformation joint

Abstract

A waterproof drainage structure of an accessible roof deformation joint is characterized in that the deformation joint is located between a first structure base body and a second structure base body, and the waterproof drainage structure comprises a deformation joint cover plate arranged above the deformation joint, and a cavity is formed between the deformation joint cover plate and the deformation joint; the structural drainage ditch is arranged on the second structural base body, and a concave space is formed between the structural drainage ditch and the second structural base body; the prefabricated cover plate is arranged above the structural drainage ditch; the concave-convex metal supporting plate is arranged above the deformation joint in a crossing mode and located in a cavity between the deformation joint and the deformation joint cover plate, and the concave-convex metal supporting plate inclines towards the structural drainage ditch to form a certain gradient. One end of the water passing pipe is communicated with the structural drainage ditch, and the other end of the water passing pipe is communicated with the cavity, so that rainwater in the cavity is drained into the structural drainage ditch. The hidden danger of rainwater leakage of the deformation joint of the accessible roof is solved, meanwhile, the requirement of an activity place of people on the accessible roof can be met, and great practical value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a waterproof and drainage structure for a deformation joint of a walkable roof. Background Technique

[0002] In order to cope with structural deformations caused by factors such as temperature changes, earthquakes, and uneven settlements, and to protect buildings from damage, it is usually necessary to set deformation joints on buildings to adapt to the structural deformations. However, when the deformation joints are exposed to the outside of the building, such as on the roof or outdoor ground, in order to prevent rainwater from leaking into the room through the deformation joints, waterproof measures need to be taken.

[0003] Currently, the commonly used waterproof structure for the deformation joints of walkable roofs is to set water retaining flanges on both sides of the deformation joints to block the surface rainwater on the roof from flowing through the deformation joints, thereby preventing the surface rainwater on the roof from leaking into the deformation joints; at the same time, a waterproof cover plate is set on the upper part of the deformation joint flange to prevent rainwater from entering the deformation joints.

[0004] However, because the water retaining flanges on both sides of the deformation joints in the commonly used structure need to be higher than the surface layer of the walkable roof, it will bring inconvenience to the personnel activities on the roof, and the components protruding from the roof are easy to trip up the moving personnel and cause injuries, there are potential safety hazards and cannot meet the requirements of the personnel activity places; the joints between the waterproof cover plates on the upper part of the flanges are easy to deform and crack due to temperature changes, resulting in leakage at the joint parts, causing water accumulation in the deformation joints, and further causing water leakage hazards. Therefore, it is an urgent problem to design a waterproof and drainage structure for the deformation joints of walkable roofs that overcomes the above defects. Content of the Utility Model

[0005] Based on the foregoing technical problems, the purpose of the utility model is to provide a waterproof and drainage structure for a deformation joint of a walkable roof, which can effectively solve the hidden danger of rainwater leakage of the deformation joint of the walkable roof, and at the same time can meet the requirements of the personnel activity places on the walkable roof.

[0006] In order to achieve the above purpose, the utility model provides a waterproof and drainage structure for a deformation joint of a walkable roof. The deformation joint is located between a first structural matrix and a second structural matrix, and includes: a deformation joint cover plate, which is arranged above the deformation joint and forms a cavity with the deformation joint; a structural drainage ditch, which is arranged on the second structural matrix and forms a concave space with the second structural matrix; a precast cover plate, which is arranged above the structural drainage ditch; a concave-convex metal support plate, which is horizontally arranged above the deformation joint and is located in the cavity between the deformation joint and the deformation joint cover plate, and the concave-convex metal support plate inclines towards the structural drainage ditch to form a certain slope; a water pipe, one end of which communicates with the structural drainage ditch, and the other end communicates with the cavity to drain the rainwater in the cavity into the structural drainage ditch.

[0007] Preferably, a first support is provided above the first structural base body, and a second support is provided above the second structural base body. The deformation joint cover plate is arranged across the first support and the second support to cover the deformation joint; a third support is further provided on the second structural base body, and the precast cover plate is arranged across the second support and the third support to cover the structural drainage ditch.

[0008] Preferably, the water pipe is arranged inside the second support, and the height of one end of the cavity communicated with the water pipe is lower than the inclined low point of the concave-convex metal support plate.

[0009] Preferably, a first finishing material is provided on the deformation joint cover plate, and the connection between the deformation joint cover plate and the first finishing material is bonded with a second waterproof glue; a second finishing material is provided on the precast cover plate, and the connection between the precast cover plate and the second finishing material is bonded with a third waterproof glue.

[0010] Preferably, the deformation joint cover plate and the precast cover plate are respectively provided with an inclined slope to drain the rainwater on the tops of the deformation joint cover plate and the precast cover plate.

[0011] Preferably, the concave-convex metal support plate is a structure in which grooves and protrusions are arranged alternately and continuously, and the grooves of the concave-convex metal support plate are filled with a first waterproof glue.

[0012] Preferably, an additional waterproof coiled material is further provided on the upper surface of the concave-convex metal support plate.

[0013] Preferably, a first drain pipe is further provided at the bottom of the structural drainage ditch. The first drain pipe penetrates through the inside of the second structural base body, one end of which is connected to the structural drainage ditch, and the other end is connected to the outside of the building structure to drain the rainwater in the structural drainage ditch.

[0014] Preferably, the waterproof and drainage structure of the accessible roof deformation joint further includes: a removable waterstop and a roof waterproof coiled material located between the concave-convex metal support plate and the deformation joint, and a buried waterstop located in the middle part of the deformation joint.

[0015] Wherein, the roof waterproof coiled material is located below the removable waterstop, and the removable waterstop and the roof waterproof coiled material are arranged across the deformation joint. One ends of the two are pressed on the upper surface of the first structural base body by a first metal pressing plate, and the other ends of the two are pressed on the upper surface of the second structural base body by a second metal pressing plate; both ends of the buried waterstop are respectively embedded in the first structural base body and the second structural base body, and it penetrates through the middle part of the deformation joint.

[0016] Preferably, when the roofing waterproof coiled material crosses the deformation joint from the first structural matrix to the second structural matrix, it has an arc-shaped structure in the deformation joint, and the arc-shaped structure is filled with a first waterproof ointment.

[0017] Preferably, a first flexible non-combustible material is stuffed between the roofing waterproof coiled material and the embedded waterstop.

[0018] Preferably, a second flexible non-combustible material is stuffed below the embedded waterstop, and a second waterproof ointment is filled below the second flexible non-combustible material.

[0019] Preferably, a metal drainage ditch and a second drain pipe are further arranged below the deformation joint;

[0020] Wherein, the second drain pipe is located at the bottom of the metal drainage ditch, one end of which is communicated with the metal drainage ditch, and the other end is connected to the outside of the building structure to drain the rainwater in the metal drainage ditch through the second drain pipe.

[0021] In summary, compared with the prior art, the waterproof and drainage structure of the deformation joint of the accessible roof of the present utility model can effectively solve the leakage hidden danger of the deformation joint of the accessible roof while meeting the requirements of the accessible roof for the personnel activity place by setting a multi-level waterproof and drainage structure in a progressive manner, greatly improving the waterproof performance of the deformation joint, and having great practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the present utility model;

[0023] In the figure:

[0024] 1. First structural matrix; 2. Second structural matrix; 3. Deformation joint; 4. Embedded waterstop; 5. Removable waterstop; 6. Roofing waterproof coiled material; 7. Additional waterproof coiled material; 8. First screw; 9. Second screw; 10. First metal pressing plate; 11. Second metal pressing plate; 12. First nut; 13. Second nut; 14. Concave-convex metal support plate; 15. First waterproof glue; 16. Deformation joint cover plate; 17. First waterproof ointment; 18. Second waterproof ointment; 19. First flexible non-combustible material; 20. Second flexible non-combustible material; 21. Structural drainage ditch; 22. Metal drainage ditch; 23. First expansion anchor bolt; 24. Second expansion anchor bolt; 25. Prefabricated cover plate; 26. First support; 27. Second support; 28. Third support; 29. First drain pipe; 30. Insulation layer; 31. Concrete casting layer; 32. Waterproof mortar; 33. Second drain pipe; 34. First finishing material; 35. Second finishing material; 36. Second waterproof glue; 37. Third waterproof glue; 38. Cross-pipe. DETAILED DESCRIPTION OF THE INVENTION

[0025] The following will further elaborate on the present utility model by specifically describing a preferred embodiment in detail with reference to the accompanying drawings. Figure 1 It should be noted that the accompanying drawings are in a very simplified form and use non-precise scales. They are only used to conveniently and clearly assist in explaining the purpose of the implementation mode of the present utility model, rather than being used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical substantial significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0026] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific implementation modes and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0027] As shown in the figure, in a building structure, there is a deformation joint 3 in the middle part between the first structural base 1 and the second structural base 2. To prevent water leakage at the deformation joint 3, the present utility model provides a waterproof and drainage structure for a walkable roof deformation joint, including: a deformation joint cover plate 16, which is arranged above the deformation joint 3 and forms a cavity between it and the deformation joint 3; a structural drainage ditch 21, which is arranged on the second structural base 2 and forms a concave space between it and the second structural base 2; a precast cover plate 25, which is arranged above the structural drainage ditch 21; a concave-convex metal support plate 14, which is horizontally arranged above the deformation joint 3 and is located in the cavity between it and the deformation joint cover plate 16. Both sides of the concave-convex metal support plate 14 are respectively fixed to the first structural base 1 and the second structural base 2 by anchor bolts, and are inclined towards the structural drainage ditch 21 to form a certain slope; a water pipe 38, one end of which communicates with the structural drainage ditch 21 and the other end communicates with the cavity to drain the rainwater in the cavity into the structural drainage ditch 21.

[0028] As Figure 1 shown, above the first structural base 1, there is a first support 26, and above the second structural base 2, there is a second support 27. The deformation joint cover plate 16 is horizontally arranged across the first support 26 and the second support 27 to cover the deformation joint 3, and is respectively fixedly connected to the first support 26 and the second support 27 by anchor bolts. Therefore, a cavity is formed between the deformation joint cover plate 16 and the deformation joint 3.

[0029] Among them, a first support 26 is arranged above the first structural base 1, a second support 27 is arranged above the second structural base 2, and the deformation joint cover plate 16 is horizontally arranged across the first support 26 and the second support 27 to cover the deformation joint 3, and is respectively fixedly connected to the first support 26 and the second support 27 by anchor bolts. Therefore, a cavity is formed between the deformation joint cover plate 16 and the deformation joint 3.

[0030] Among them, a third support 28 is further provided on the second structural base body 2. The precast cover plate 25 is arranged across the second support 27 and the third support 28 to cover the structural drainage ditch 21, and is fixedly connected to the second support 27 and the third support 28 respectively by mortar bonding.

[0031] Among them, the water pipe 38 is arranged inside the second support 27, and both ends communicate with the structural drainage ditch 21 and the cavity respectively. At the same time, the height of one end of the water pipe 38 communicating with the cavity is lower than the inclined low point of the concave-convex metal support plate 14.

[0032] Furthermore, in order to reduce the infiltration of rainwater at the joints between the expansion joint cover plate 16 and the first support 26 and the second support 27, a first facing material 34 is provided on the expansion joint cover plate 16, and the connection between the expansion joint cover plate 16 and the first facing material 34 is bonded with a second waterproof glue 36.

[0033] Furthermore, in order to reduce the infiltration of rainwater at the joints between the precast cover plate 25 and the second support 27 and the third support 28, a second facing material 35 is provided on the precast cover plate 25, and the connection between the precast cover plate 25 and the second facing material 35 is bonded with a third waterproof glue 37.

[0034] Furthermore, in order to avoid water accumulation on the surfaces of the expansion joint cover plate 16 and the precast cover plate 25, the expansion joint cover plate 16 and the precast cover plate 25 are respectively provided with a 2% inclined slope to directly drain rainwater to other positions.

[0035] Specifically, in this embodiment, the first support 26, the second support 27 and the third support 28 are cast in situ with concrete; and the first facing material 34 and the second facing material 35 are made of the same material as the surface layer of the roof floor.

[0036] Furthermore, the concave-convex metal support plate 14 is a structure in which grooves and protrusions are arranged alternately and continuously, and the grooves of the concave-convex metal support plate 14 are filled with a first waterproof glue 15 to ensure that rainwater can smoothly drain into the water pipe 38 along the inclined slope of the concave-convex metal support plate 14 without accumulating in the grooves of the concave-convex metal support plate 14. It can be understood that when typhoons, earthquakes and other situations occur, slight deformations will occur between the first structural base body 1 and the second structural base body 2 and the expansion joint 3, and the concave-convex metal support plate 14 can adapt to the relative dislocation deformation between the first structural base body 1 and the second structural base body 2.

[0037] Furthermore, an additional waterproof coiled material 7 is further provided on the upper surface of the concave-convex metal support plate 14 to further prevent rainwater from continuing to infiltrate into the expansion joint 3.

[0038] Furthermore, a plurality of the water pipes 38 are longitudinally arranged, and the outer walls of each of the water pipes 38 are covered with the cast-in-place concrete of the second support 27. In this embodiment, the diameter of each of the water pipes 38 is 20 mm to 40 mm, preferably 30 mm, and the distance between every two of the water pipes 38 is 800 mm to 1200 mm, preferably 1000 mm.

[0039] Furthermore, a waterproof mortar 32 is also arranged between the water pipe 38 and the second structural matrix 2. While playing a role in preventing rainwater from seeping down, the waterproof mortar 32 has a certain slope in the direction of the structural drainage ditch 21 to provide a supporting effect for the water pipe 38.

[0040] Furthermore, a first drain pipe 29 is also arranged at the bottom of the structural drainage ditch 21. The first drain pipe 29 penetrates through the interior of the second structural matrix 2, one end of which is connected to the structural drainage ditch 21, and the other end is connected to the outside of the building structure to drain the rainwater in the structural drainage ditch 21. Specifically, in this embodiment, the ditch body of the structural drainage ditch 21 is cast in place with reinforced concrete to form a concrete monolithic layer 31. A heat preservation layer 30 is arranged outside the concrete monolithic layer 31, and the heat preservation layer 30 is located between the concrete monolithic layer 31 and the second structural matrix 2. The first drain pipe 29 sequentially penetrates through the concrete monolithic layer 31, the heat preservation layer 30 and the second structural matrix 2 to drain the rainwater flowing into the structural drainage ditch 21 to the outside of the building structure.

[0041] Furthermore, the waterproof and drainage structure of the accessible roof deformation joint further includes a removable water stop 5, a roofing waterproofing membrane 6 and a buried water stop 4 arranged on the deformation joint 3. Both the removable water stop 5 and the roofing waterproofing membrane 6 are located between the concave-convex metal support plate 14 and the deformation joint 3, and the roofing waterproofing membrane 6 is located below the removable water stop 5. The buried water stop 4 is arranged in the middle part of the deformation joint 3.

[0042] Specifically, the removable water stop 5 and the roofing waterproofing membrane 6 are arranged across the deformation joint 3. One ends of the two are pressed on the upper surface of the first structural matrix 1 by a first metal pressing plate 10 and fastened by a first screw 8 and a first nut 12. The other ends of the two are pressed on the upper surface of the second structural matrix 2 by a second metal pressing plate 11 and fastened by a second screw 9 and a second nut 13.

[0043] Furthermore, when the roofing waterproof coiled material 6 spans from the first structural matrix 1 across the deformation joint 3 to the second structural matrix 2, it has an arc-shaped structure in the deformation joint 3 to adapt to the staggered deformation between the first structural matrix 1 and the second structural matrix 2; and the arc-shaped structure (i.e., the part between the removable water stop belt 5 and the roofing waterproof coiled material 6 within the deformation joint 3) is filled with a first waterproof ointment 17, which further enhances the water stop effect.

[0044] Furthermore, both ends of the embedded water stop belt 4 are respectively pre-embedded in the first structural matrix 1 and the second structural matrix 2, and its middle part penetrating through the deformation joint 3 is arranged.

[0045] It can be understood that the removable water stop belt 5 is the first line of defense for the deformation joint 3. When rainwater seeps down through the gaps of the concave-convex metal support plate 14, the removable water stop belt 5 can prevent the rainwater from continuing to seep down; the roofing waterproof coiled material 6 is the second line of defense for the deformation joint 3. When rainwater continues to seep down from the removable water stop belt 5, the roofing waterproof coiled material 6 continues to prevent the rainwater from seeping down; the embedded water stop belt 4 is the third line of defense for the deformation joint 3. When rainwater continues to seep down from the roofing waterproof coiled material 6, the embedded water stop belt 4 continues to prevent the rainwater from seeping down.

[0046] Furthermore, a first flexible non-combustible material 19 is stuffed between the roofing waterproof coiled material 6 and the embedded water stop belt 4; a second flexible non-combustible material 20 is stuffed below the embedded water stop belt 4, and the lower end port of the deformation joint 3 is sealed with a second waterproof ointment 18 below the second flexible non-combustible material 20, further preventing water leakage in the deformation joint 3.

[0047] Furthermore, a metal drainage ditch 22 and a second drain pipe 33 are also arranged below the deformation joint 3; both sides of the metal drainage ditch 22 are respectively fixed on the first structural matrix 1 and the second structural matrix 2 by a first expansion anchor bolt 23 and a second expansion anchor bolt 24. When rainwater seeps down from the deformation joint 3, it will flow into the metal drainage ditch 22; the second drain pipe 33 is located at the bottom of the metal drainage ditch 22, one end of which is communicated with the metal drainage ditch 22, and the other end is connected to the outside of the building structure to discharge the rainwater in the metal drainage ditch 22 through the second drain pipe 33.

[0048] Among them, to adapt to the staggered deformation between the first structural matrix 1 and the second structural matrix 2, the first expansion anchor bolt 23, and / or the second expansion anchor bolt 24, is fixed to the metal drainage ditch 22 in a kidney-shaped hole manner.

[0049] In this embodiment, a waterproof and drainage structure for a walkable roof expansion joint of the utility model has the following specific waterproof process: After the rain falls, it first accumulates on the surface of the expansion joint cover plate 16. However, due to the certain inclined slope on the surface of the expansion joint cover plate 16, most of the rainwater is drained to other places, and a small part of the rainwater seeps into the cavity below the expansion joint cover plate 16 through the surface gap of the expansion joint cover plate 16, and the rainwater is discharged into the structural drainage ditch 21 through the water pipe 38, and then discharged through the first drain pipe 29. If the rainwater continues to seep into the expansion joint 3 through the surface gap of the concave-convex metal support plate 14 at this time, it will pass through the removable water stop belt 5, the roof waterproof coiled material 6 and the embedded water stop belt 4 in sequence to stop the water and prevent the rainwater from seeping further. However, if the rainfall is too large to stop the water at this time, the rainwater will continue to seep into the metal drainage ditch 22 and be discharged through the second drain pipe 33.

[0050] In summary, the waterproof and drainage structure for a walkable roof expansion joint provided by the utility model effectively excludes the surface rainwater and seepage water flowing through the roof expansion joint through a series of progressive multi-level waterproof and drainage measures. It can not only effectively solve the leakage hidden danger of the walkable roof expansion joint, greatly improve the waterproof performance of the expansion joint, but also meet the requirements of the personnel activity place on the walkable roof.

[0051] Although the content of the utility model has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the utility model. After those skilled in the art read the above content, various modifications and substitutions of the utility model will be obvious. Therefore, the protection scope of the utility model should be defined by the appended claims.

Claims

1. A waterproof and drainage structure for a deformation joint on a walkable roof, the deformation joint being located between a first structural base and a second structural base, characterized in that, Comprising: A deformation joint cover plate is arranged above the deformation joint, and a cavity is formed between the deformation joint cover plate and the deformation joint; A structural drainage ditch is arranged on the second structural base body, and a concave space is formed between the structural drainage ditch and the second structural base body; A precast cover plate is arranged above the structural drainage ditch; A concavo-convex metal support plate is arranged across the deformation joint above the deformation joint, located in the cavity between the deformation joint and the deformation joint cover plate, and the concavo-convex metal support plate inclines towards the structural drainage ditch to form a certain slope; A water pipe is connected at one end to the structural drainage ditch and at the other end to the cavity to drain the rainwater in the cavity into the structural drainage ditch.

2. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 1, characterized in that, A first support is arranged above the first structural base body, and a second support is arranged above the second structural base body. The deformation joint cover plate is arranged across the first support and the second support to cover the deformation joint; A third support is further arranged on the second structural base body. The precast cover plate is arranged across the second support and the third support to cover the structural drainage ditch.

3. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 2, characterized in that, The water pipe is arranged inside the second support, and the height of the end of the water pipe connected to the cavity is lower than the low point of the inclination of the concavo-convex metal support plate.

4. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 1, characterized in that A first finishing material is arranged on the deformation joint cover plate, and the connection between the deformation joint cover plate and the first finishing material is bonded with a second waterproof glue; A second finishing material is arranged on the precast cover plate, and the connection between the precast cover plate and the second finishing material is bonded with a third waterproof glue.

5. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 4, characterized in that, The deformation joint cover plate and the precast cover plate are respectively provided with an inclined slope to drain the rainwater on the tops of the deformation joint cover plate and the precast cover plate.

6. The waterproof and drainage structure of the expansion joint on the accessible roof as described in claim 1, characterized in that, The concavo-convex metal support plate is a structure in which grooves and protrusions are arranged continuously in an alternating manner, and the grooves of the concavo-convex metal support plate are filled with a first waterproof glue; An additional waterproof coiled material is further arranged on the upper surface of the concavo-convex metal support plate.

7. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 1, characterized in that, A first drain pipe is further arranged at the bottom of the structural drainage ditch. The first drain pipe penetrates through the inside of the second structural base body, is connected to the structural drainage ditch at one end, and is connected to the outside of the building structure at the other end to drain the rainwater in the structural drainage ditch.

8. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 1, characterized in that, Further comprising: a removable waterstop and a roofing waterproof coiled material located between the concavo-convex metal support plate and the deformation joint, and a buried waterstop located in the middle part of the deformation joint; The roofing waterproof coiled material is located below the removable waterstop, and the removable waterstop and the roofing waterproof coiled material are arranged across the deformation joint. One ends of the two are pressed on the upper surface of the first structural base body by a first metal pressing plate, and the other ends of the two are pressed on the upper surface of the second structural base body by a second metal pressing plate; Both ends of the buried waterstop are respectively embedded in the first structural base body and the second structural base body, and it penetrates through the middle part of the deformation joint.

9. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 8, characterized in that, When the roofing waterproof coiled material spans from the first structural base body across the deformation joint to the second structural base body, it is in an arc-shaped structure in the deformation joint, and the arc-shaped structure is filled with a first waterproof ointment; A first flexible non-combustible material is stuffed between the roofing waterproof coiled material and the buried waterstop; A second flexible non-combustible material is stuffed below the embedded waterstop, and a second waterproof ointment is filled below the second flexible non-combustible material.

10. The waterproof and drainage structure of the expansion joint on the accessible roof according to claim 9, characterized in that, A metal drainage ditch and a second drain pipe are further arranged below the deformation joint; The second drain pipe is located at the bottom of the metal drainage ditch, one end of which is communicated with the metal drainage ditch, and the other end is connected to the outside of the building structure to discharge the rainwater in the metal drainage ditch through the second drain pipe.

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