Waterproof structure for connecting steel structure roof and block wall

Abstract

The utility model discloses a waterproof structure of steel structure roof and block wall connection, including block wall and the steel structure roof section that is connected to one side of block wall, one side of steel structure roof section is equipped with waterproof roll material, the upper end of waterproof roll material is bent to one side of block wall and is in abutment with the outer wall of block wall, the upper portion of block wall and waterproof roll material contact point is installed to the water board, and the lower end of water board is located in the lower portion of block wall and waterproof roll material contact point, and the inboard of water board is equipped with air cushion and rubber pad in proper order, the inside of air cushion is equipped with sealed air cavity, and after air cushion installation, the air in air cavity is in compression state, the utility model discloses a sealing adhesive is coated in the connecting place of block wall and waterproof roll material, realizes one -time sealing, and through rubber pad and air cushion, the displacement of block wall and water board because of temperature, vibration is absorbed, reduces the vibration transmission under dynamic load, guarantees the stability of water board and block wall long -term connection.

Description

Technical Field

[0001] This utility model belongs to the field of roof waterproofing, and specifically relates to a waterproof structure for connecting a steel structure roof with a block wall. Background Technology

[0002] Steel structure roofs are widely used in industrial plants, warehouses, and some civil buildings due to their advantages such as light weight, large span, and convenient construction. The connection between the steel structure roof and the block wall (mostly concrete block wall) is a critical point for waterproofing. This part must simultaneously bear the load transfer from the roof, the effects of temperature deformation, and the intrusion of external rainwater. If the waterproofing measures fail, rainwater leakage can easily occur, leading to dampness inside the wall, corrosion of steel structural components, and even affecting the structural safety and functionality of the building. Therefore, extremely high requirements are placed on the reliability of the waterproofing structure at the connection point.

[0003] Currently, the industry commonly uses a "waterproof membrane fixing + joint sealing" technical solution for waterproofing the connection between steel structure roofs and block walls. First, the waterproof membrane (such as SBS modified bitumen waterproof membrane, EPDM rubber waterproof membrane, etc.) is directly fixed to the inner wall of the parapet wall at the top of the block wall by welding or bolting. Then, the joints between the waterproof membrane and the roof steel plate, and between the waterproof membrane and the parapet wall are sealed. The sealing methods are mainly divided into two categories: one is to directly cover the joint with a single layer of waterproof membrane and compact it, and the other is to fill the joint with sealant (such as silicone sealant, polyurethane sealant) to seal the joint, thereby forming a waterproof barrier.

[0004] However, existing technical solutions have many technical shortcomings in practical applications and are difficult to meet the requirements for long-term reliable waterproofing. The specific problems are as follows: First, the linear expansion coefficients of the masonry wall and the steel structure roof profiles differ, resulting in significant differences in deformation and stress during temperature changes (such as high temperatures in summer and low temperatures in winter). Existing technologies using rigid connection methods such as welding and bolting cannot effectively address this deformation difference. This leads to forced tension between the waterproof membrane and the parapet wall / roof steel plate, subjecting the sealant at the joints to repeated tensile-compressive stress. This makes the sealant highly susceptible to cracking and detachment, creating leakage channels.

[0005] Secondly, sealants are affected by environmental factors (UV radiation, rainwater immersion, temperature fluctuations), gradually aging, hardening, and shrinking, leading to a continuous decline in sealing performance. Simultaneously, in current construction processes, errors such as misalignment of the waterproof membrane fixing position and insufficient sealant application are difficult to completely avoid, further reducing the reliability of the waterproof structure. All of these factors can easily cause leaks at joints in a short period. Repairing leaks requires removing the original waterproof membrane, cleaning the aged sealant, and redoing the process, which not only affects the normal use of the building but also requires significant manpower and material costs, resulting in high long-term maintenance expenses. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a waterproof structure for the connection between steel structure roof and masonry wall, so as to solve the problem that the existing waterproof structure for the connection between steel structure roof and masonry wall is unable to coordinate the differences in material deformation and has insufficient sealing reliability, making it difficult to meet the long-term waterproofing needs of buildings.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A waterproof structure connecting a steel structure roof to a block wall includes a block wall and a steel structure roof profile connected to one side of the block wall. A waterproof membrane is provided on one side of the steel structure roof profile. The steel structure roof profile and the waterproof membrane are connected to the block wall through connectors. The upper end of the waterproof membrane is bent toward the block wall and abuts against the outer wall of the block wall. A sealant is applied at the joint between the waterproof membrane and the block wall. A flashing is provided on one side of the block wall. The flashing is installed at the upper part of the contact point between the block wall and the waterproof membrane. The lower end of the flashing is located at the lower part of the contact point between the block wall and the waterproof membrane. An air cushion and a rubber pad are arranged in sequence on the inner side of the flashing. The flashing, air cushion and rubber pad are connected to the block wall through connectors. The air cushion has a sealed air cavity inside, and the air in the air cavity is in a compressed state after the air cushion is installed.

[0008] Furthermore, the rubber pad has several positioning holes on one side, and the air cushion has several positioning posts corresponding to the positioning holes on one side. The air cushion and the rubber pad are detachably connected, and the positioning posts and positioning holes are interference-fitted.

[0009] Furthermore, the flashing has an upper water guide plate that bends toward the side of the block wall, and the upper end of the upper water guide plate is in contact with the block wall; the flashing has a lower water guide plate that extends toward the side away from the block wall.

[0010] Furthermore, the flashing is provided with a retaining plate at its upper end and also includes a sealing strip. One side of the sealing strip is provided with a groove that cooperates with the retaining plate, and one end of the sealing strip abuts against the surface of the masonry wall.

[0011] Furthermore, the sealing strip has a hollow cavity inside, and after the sealing strip is installed, the hollow cavity is in a compressed state to compensate for the deformation of the flashing and masonry wall caused by thermal expansion and contraction.

[0012] Furthermore, it also includes a splicing seal for splicing flashing. The splicing seal is shaped to resemble the outline of the flashing. Each side of the splicing seal has a connecting groove. After applying sealant to one end of the flashing or in the connecting groove, the flashing is inserted into the connecting groove. The two sides of the splicing seal have several grooves.

[0013] Furthermore, one end of the splicing seal is integrally formed with a snap-fit ​​connector, which is installed in a snap-fit ​​groove.

[0014] The beneficial effects of this utility model are: (1) This utility model achieves a one-time seal by applying sealant at the connection between the block wall and the waterproof membrane, and sets a flashing with rubber pads and air cushions on the outside of the connection to absorb the displacement of the block wall and the flashing caused by temperature and vibration, reduce the vibration transmission under dynamic load, and ensure the stability of the long-term connection between the flashing and the block wall.

[0015] (2) The air cushion and the rubber pad are designed to be detachable, and the positioning pin and the positioning hole are interference fit. When the rubber pad or the air cushion is damaged, there is no need to replace the whole part. It can be replaced and maintained separately, which reduces maintenance costs and workload.

[0016] (3) The upper water guide plate prevents rainwater from flowing to the connection between the waterproof membrane and the block wall, while the lower water guide plate guides the rainwater outward, preventing rainwater from accumulating at the connection between the waterproof membrane and the steel structure roof profile, thus reducing the risk of leakage.

[0017] (4) The flashing and the block wall are sealed by a sealing strip with a hollow cavity, which provides double protection to block the rainwater infiltration path. The hollow cavity of the sealing strip is in a compressed state after installation, which can compensate for the thermal expansion and contraction deformation of the flashing and the block wall, and ensure the sealing effect of the sealing strip.

[0018] (5) The splicing seal not only ensures the sealing of multiple flashing splices, but the grooves on it also help to adapt to the expansion and contraction deformation of the flashing caused by temperature changes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the installation of a waterproof structure connecting a steel structure roof and a block wall according to this utility model.

[0020] Figure 2 This is a schematic diagram of the flashing assembly.

[0021] Figure 3This is a schematic diagram of the flashing structure.

[0022] Figure 4 This is a partial schematic diagram of the sealing strip.

[0023] Figure 5 This is a partial schematic diagram of the spliced ​​sealing components.

[0024] Figure 6 It is an exploded diagram of a rubber pad and an air cushion.

[0025] In the diagram, 1. Block wall; 2. Steel structure roof profile; 3. Waterproof membrane; 4. Connector; 5. Rubber pad; 51. Positioning hole; 6. Air cushion; 61. Air cavity; 62. Positioning post; 7. Flashing; 71. Upper water guide plate; 72. Lower water guide plate; 73. Clamping plate; 8. Sealing strip; 81. Clamping groove; 82. Hollow cavity; 9. Splicing seal; 91. Connecting groove; 92. Clamping joint; 93. Groove. Detailed Implementation

[0026] The following will be combined with the appendix Figures 1-6 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] like Figure 1 As shown, a waterproof structure connecting a steel structure roof and a block wall includes a block wall 1 and a steel structure roof profile 2 connected to one side of the block wall 1. A waterproof membrane 3 is provided on one side of the steel structure roof profile 2. The steel structure roof profile 2 and the waterproof membrane 3 are connected to the block wall 1 through a connector 4. The upper end of the waterproof membrane 3 is bent toward the block wall 1 and abuts against the outer wall of the block wall 1. Sealant is applied at the connection between the waterproof membrane 3 and the block wall 1 to achieve a one-time seal at the connection. like Figure 1As shown, a flashing 7 is provided on one side of the block wall 1. The flashing 7 is installed at the upper part of the contact point between the block wall 1 and the waterproof membrane 3, and the lower end of the flashing 7 is located at the lower part of the contact point between the block wall 1 and the waterproof membrane 3. An air cushion 6 and a rubber pad 5 are sequentially provided on the inner side of the flashing 7. The flashing 7, air cushion 6, and rubber pad 5 are connected to the block wall 1 through a connector 4. In this embodiment, the connector 4 is a cement nail or a nail gun. In other embodiments, the connector 4 can also be an expansion bolt. The rubber pad 5 is used to absorb the displacement of the block wall 1 and the flashing 7 caused by temperature, vibration, etc., to disperse the concentrated stress at the connection point, and to reduce the vibration transmission under dynamic loads such as wind vibration and earthquakes. Figure 6 As shown, the air cushion 6 has a sealed air cavity 61 inside, and after the air cushion 6 is installed, the air in the air cavity 61 is in a compressed state; the air cushion 6 adapts to the deformation of the rubber pad 5 by changing the volume of the cavity, ensuring that the rubber pad 5 keeps in contact with the block wall 1 and applies a certain amount of pressure; the air cushion 6 and the rubber pad 5 work together to ensure the stability of the connection between the flashing 7 and the block wall 1.

[0029] like Figure 6 As shown, the rubber pad 5 has several positioning holes 51 on one side, and the air cushion 6 has several positioning posts 62 corresponding to the positioning holes 51 on one side. The air cushion 6 and the rubber pad 5 are detachably connected, which facilitates separate maintenance after the rubber pad 5 or the air cushion 6 is damaged. The positioning posts 62 and the positioning holes 51 are interference-fitted to ensure the stability of the connection between the air cushion 6 and the rubber pad 5.

[0030] like Figure 3 As shown, the flashing 7 has an upper water-guiding inclined plate 71 that bends towards the side of the block wall 1, and the upper end of the upper water-guiding inclined plate 71 contacts the side of the block wall 1. This not only guides the rainwater but also seals the flashing 7 against the block wall 1, preventing rainwater from flowing to the connection between the waterproof membrane 3 and the block wall 1, thus preventing moisture from corroding the steel structure roof profile 2 and the end of the waterproof membrane 3. The flashing 7 has a lower water-guiding inclined plate 72 that extends away from the side of the block wall 1. The lower water-guiding inclined plate 72 guides the rainwater outward, preventing rainwater from accumulating at the connection between the waterproof membrane 3 and the steel structure roof profile 2.

[0031] like Figures 2-4 As shown, the flashing 7 has a retaining plate 73 at its upper end and also includes a sealing strip 8. The sealing strip 8 has a groove 81 on one side that cooperates with the retaining plate 73. One end of the sealing strip 8 abuts against the wall surface of the block wall 1. The sealing strip 8 is used to perform a secondary seal between the flashing 7 and the block wall 1, further ensuring the waterproof effect at the connection between the steel structure roof and the block wall 1.

[0032] like Figure 4As shown, the sealing strip 8 has a hollow cavity 82 inside. After the sealing strip 8 is installed, the hollow cavity 82 is in a compressed state, which is used to compensate for the deformation of the flashing 7 and the block wall 1 caused by thermal expansion and contraction, thus ensuring the sealing effect of the sealing strip 8.

[0033] like Figure 2 , Figure 5 As shown, it also includes a splicing seal 9 for splicing the flashing 7. The splicing seal 9 is shaped to resemble the outline of the flashing 7. Each side of the splicing seal 9 is provided with a connecting groove 91. After applying sealant to one end of the flashing 7 or inside the connecting groove 91, the flashing 7 is inserted into the connecting groove 91. The two sides of the splicing seal 9 are provided with several grooves 93. The splicing seal 9 not only ensures the sealing performance of multiple flashing 7 after splicing, but also compensates for the expansion and contraction deformation of the flashing 7 caused by temperature.

[0034] like Figure 5 As shown, one end of the splicing seal 9 is integrally formed with a snap-fit ​​connector 92, which is installed in the snap-fit ​​groove 81 to ensure the stability of the connection between the flashing plate 7, the sealing strip 8 and the splicing seal 9.

[0035] Before waterproofing the connection between the steel structure roof and the block wall 1, clean the surface of the block wall 1 to be connected and the surface of the steel structure roof profile 2 to ensure that there is no dust, oil stains, or protruding debris, and ensure that the contact surface is flat and dry to avoid affecting the subsequent sealing and connection stability.

[0036] Cover the side of the steel structure roof profile 2 with the waterproof membrane 3, with one end attached to the profile and the other end bent toward the block wall 1 so that the bent end of the membrane is tightly against the outer wall of the block wall 1; apply sealant evenly at the joint between the waterproof membrane 3 and the block wall 1 to form a primary seal, and check the seal after the sealant has cured to avoid any omissions.

[0037] The pre-assembled rubber pads 5 and air cushions 6 are sequentially attached to the inside of the flashing 7 to form a whole. The flashing 7 is aligned with the contact point between the block wall 1 and the waterproof membrane 3—the upper end of the flashing 7 should be higher than the contact point, and the lower end should extend below the contact point. The flashing 7, air cushions 6, and rubber pads 5 are fixed to the block wall 1 together using the connectors 4, so that the flashing 7 completely covers the upper end of the waterproof membrane 3. When fixing, it is necessary to ensure that the internal air cavity 61 of the air cushion 6 is in a compressed state after installation, and that the rubber pads 5 are tightly attached to the wall surface.

[0038] Take out the sealing strip 8, align the groove 81 on one side of it with the plate 73 on the upper end of the flashing 7, and insert it into the plate 73 to fix it; adjust the position of the sealing strip 8 so that one end of the sealing strip 8 is tightly against the wall surface of the block wall 1, and use the hollow cavity 82 inside the sealing strip 8 (which is in a compressed state after installation) to compensate for possible deformation, form a secondary seal, and further enhance the waterproof effect.

[0039] If multiple flashing panels 7 need to be spliced ​​together in the construction area, first apply sealant evenly to the splicing end of each flashing panel 7 or in the connecting groove 91 of the splicing seal 9; align the connecting groove 91 of the splicing seal 9 with the sealant-applied end of the flashing panel 7, insert the flashing panel 7 into the connecting groove 91, and ensure that the splice fits tightly; use the groove 93 structure of the splicing seal 9 to compensate for the expansion and contraction deformation of the flashing panel 7 caused by temperature changes, while ensuring the sealing of the splice.

[0040] The above content is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the scope defined by the structure of the utility model, they should all fall within the protection scope of this utility model.

Claims

1. A waterproof structure for connecting a steel structure roof to a block wall, comprising a block wall and a steel structure roof profile connected to one side of the block wall, wherein a waterproof membrane is provided on one side of the steel structure roof profile, and the steel structure roof profile and the waterproof membrane are connected to the block wall through connectors; the upper end of the waterproof membrane is bent toward the block wall and abuts against the outer wall of the block wall, and sealant is applied at the connection between the waterproof membrane and the block wall; Its features are, A flashing is provided on one side of the block wall. The flashing is installed at the upper part of the contact point between the block wall and the waterproof membrane. The lower end of the flashing is located at the lower part of the contact point between the block wall and the waterproof membrane. An air cushion and a rubber pad are arranged in sequence on the inner side of the flashing. The flashing, air cushion and rubber pad are connected to the block wall through connectors. The air cushion has a sealed air cavity inside, and the air in the air cavity is in a compressed state after the air cushion is installed.

2. The waterproof structure for connecting a steel structure roof and a masonry wall according to claim 1, characterized in that, The rubber pad has several positioning holes on one side, and the air cushion has several positioning posts corresponding to the positioning holes on one side. The air cushion and the rubber pad are detachably connected, and the positioning posts and positioning holes are interference fit.

3. A waterproof structure for connecting a steel structure roof and a masonry wall according to claim 1 or 2, characterized in that, The flashing has an upper water guide plate that bends toward the side of the block wall, and the upper end of the upper water guide plate is in contact with the block wall; the flashing has a lower water guide plate that extends toward the side away from the block wall.

4. A waterproof structure for connecting a steel structure roof and a block wall according to claim 3, characterized in that, The flashing is provided with a retaining plate at the upper end and also includes a sealing strip. One side of the sealing strip is provided with a groove that cooperates with the retaining plate, and one end of the sealing strip abuts against the surface of the masonry wall.

5. A waterproof structure for connecting a steel structure roof and a masonry wall according to claim 4, characterized in that, The sealing strip has a hollow cavity inside, and after the sealing strip is installed, the hollow cavity is in a compressed state to compensate for the deformation of the flashing and masonry wall caused by thermal expansion and contraction.

6. A waterproof structure for connecting a steel structure roof and a masonry wall according to claim 4, characterized in that, It also includes a splicing seal for splicing flashing. The splicing seal is shaped to resemble the outline of the flashing. Each side of the splicing seal has a connecting groove. After applying sealant to one end of the flashing or in the connecting groove, the flashing is inserted into the connecting groove. The two sides of the splicing seal have several grooves.

7. A waterproof structure for connecting a steel structure roof and a block wall according to claim 6, characterized in that, One end of the splicing seal has an integrally formed snap-fit ​​connector, which is installed in a snap-fit ​​groove.

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