A waterproofing construction for a roof structure joint

Abstract

The utility model relates to roof waterproof technology field, concretely is a kind of roof structure seam's waterproof structure, including roof one and roof two, roof two is close to the side top of roof one and is fixedly arranged with ridge body, roof one is close to the fixed setting of ridge body side and is arranged with overhanging plate, ridge body is located below overhanging plate and the right side of ridge body is flush with the right side of overhanging plate, and the bottom between the top of ridge body and overhanging plate is equipped with expansion joint, and expansion joint is filled with sealing layer, and the top of overhanging plate is equipped with water intercepting groove along front-back direction, in the structure, by the overhanging plate and ridge body respectively arranged on roof one and roof two, rainwater on the two sides of structure seam is effectively blocked, rainwater is avoided to infiltrate structure seam, and waterproof effect is improved.

Description

Technical Field

[0001] This application relates to the field of roof waterproofing, specifically a waterproofing structure for roof structural joints. Background Technology

[0002] Roof structural joints are artificial gaps in buildings designed to accommodate structural deformation and prevent cracking or damage. They are usually located between different structural units (such as the main building and the podium, or the junction of the roof and the wall). Their core function is to release the negative impacts of temperature stress, settlement differences, and seismic deformation on the structure. To prevent rainwater from entering the interior of the roof and walls through the structural joints, waterproofing treatment is required for the roof structural joints.

[0003] Currently, waterproofing at structural joints involves filling the joints with water-stopping materials, typically waterstop strips and waterproof tapes. However, these materials gradually deteriorate over time, allowing rainwater to easily seep in along the joints. Regular replacement and maintenance are necessary, a cumbersome process. Furthermore, some structural joints have height differences between the roof structural units on either side, making it difficult to achieve sufficient fit between the waterstop material and the roof structural units (due to the height difference, the fit height between the waterstop material and the roof structure is much smaller than the roof structure's height). These factors result in a short effective lifespan for the waterstop material filling the structural joints, leading to poor waterproofing performance. Utility Model Content

[0004] In view of the problem of poor waterproofing effect in the existing technology, this utility model provides a waterproof structure for roof structural joints.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] This utility model provides a waterproof structure for a roof structural joint, including a roof surface one and a roof surface two located on both sides of the structural joint, wherein the height of roof surface one is greater than the height of roof surface two, characterized in that:

[0007] A sill is fixedly installed on the top of the side of Roof 2 closest to Roof 1. A cantilever slab is fixedly installed on the side of Roof 1 closest to the sill. The sill is located below the cantilever slab, and the right side of the sill is flush with the right side of the cantilever slab. An expansion joint is provided between the top of the sill and the bottom of the cantilever slab, and the expansion joint is filled with a sealing layer, which is polyurethane sealant. A water interception groove is provided on the top of the cantilever slab along the front-to-back direction. The top of the sill is provided with a slope. The height of the sill's top surface closest to Roof 1 is greater than the height of the side furthest from Roof 1. The height difference between the top surface of the cantilever slab and the top surface of Roof 2 is h. The height of the cantilever slab above the sill is h1. The height of the expansion joint is h2. The width of the sill is w. The width of the water interception groove is w1. Where h ≥ 500 mm, 100 ≤ h1 ≤ 150 mm, 50 ≤ h2 ≤ 100 mm, w ≥ 200 mm, and w1 ≥ 100 mm.

[0008] The staff adjusted the thickness of the cantilever slab based on the height difference between roof one and roof two. Figure 1 As shown, when the height difference between Roof 1 and Roof 2 is greater than or equal to 500mm, the cantilever slab is fixedly installed on the right side of Roof 1, and the thickness of the cantilever slab is the same on both sides. At this time, sufficient space is reserved below the cantilever slab to install a sill, such as... Figure 2 As shown, when the height difference between Roof 1 and Roof 2 is less than 500mm, the cantilever slab is fixedly installed on the top of Roof 1. The thickness of the left side of the cantilever slab is greater than the thickness of the right side, so that the distance between the top of the cantilever slab and the top surface of Roof 2 at the lower level is greater than or equal to 500mm. This ensures that sufficient height is reserved for the sill on Roof 2, guaranteeing that the sill effectively blocks rainwater from Roof 2. By setting the height of the cantilever slab on one side above the sill and the height of the expansion joint, sufficient strength of the cantilever slab is ensured, and a sufficiently high expansion joint prevents collisions during settlement. By setting the width of the sill to be greater than... The 200mm thickness provides sufficient thickness for the embankment to block rainwater and prevent its penetration. The width of the intercepting channel allows for the full collection and diversion of rainwater from the cantilever slab, achieving effective drainage. The embankment's top surface is sloped, allowing rainwater to flow away from the structural joint when it falls on the top surface, preventing seepage. Polyurethane sealant is used to fill the expansion joint, ensuring effective sealing as the joint's height changes.

[0009] The advantages of adopting the above technical solution are:

[0010] This utility model includes a roof 1 and a roof 2. A sill is fixedly installed on the top of the side of roof 2 closest to roof 1. A cantilever slab is fixedly installed on the side of roof 1 closest to the sill. The sill is located below the cantilever slab, and the right side of the sill is flush with the right side of the cantilever slab. An expansion joint is provided between the top of the sill and the bottom of the cantilever slab, and the expansion joint is filled with a sealing layer. A water interception groove is provided on the top of the cantilever slab along the front-to-back direction. In this structure, by setting the cantilever slab and the sill on roof 1 and roof 2 respectively, rainwater on the top and sides of the structural joint is effectively and stably blocked, preventing rainwater from seeping into the structural joint. Moreover, the sealing layer has sufficient fit width with the cantilever slab and the sill, improving the waterproof effect. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the structure of this utility model is shown;

[0013] Figure 2 A partial structural schematic diagram of this utility model is shown;

[0014] Figure 3 A partial structural schematic diagram of the present invention is shown.

[0015] Among them: 1. Roof 1; 100. Structural joint; 2. Roof 2; 3. Sill; 4. Cantilever slab; 401. Water interception channel; 5. Sealing layer. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] like Figure 1-3As shown in the figure, this utility model embodiment discloses a waterproof structure for a roof structural joint, including a roof first 1 and a roof second 2 located on both sides of the structural joint 100. The height of roof first 1 is greater than the height of roof second 2. A retaining body 3 is fixedly installed on the top of the side of roof second 2 closest to roof first 1. A cantilever slab 4 is fixedly installed on the side of roof first 1 closest to retaining body 3. Retaining body 3 is located below cantilever slab 4 and the right side of retaining body 3 is flush with the right side of cantilever slab 4. An expansion joint is provided between the top of retaining body 3 and the bottom of cantilever slab 4. The expansion joint is filled with a sealing layer 5. A water intercepting groove 401 is provided on the top of cantilever slab 4 along the front-to-back direction.

[0018] In at least one embodiment, the height difference between the top surface of the cantilever slab 4 and the top surface of the roof 2 is h, where h ≥ 500 mm. Workers adjust the thickness of the cantilever slab 4 according to the height difference between roof 1 and roof 2. Figure 1 As shown, when the height difference between roof 1 and roof 2 is greater than or equal to 500mm, the cantilever slab 4 is fixedly installed on the right side of roof 1, and the thickness of the left and right sides of the cantilever slab 4 is the same. At this time, sufficient space is reserved below the cantilever slab 4 to install a sill 3, such as... Figure 2 As shown, when the height difference between roof 1 and roof 2 is less than 500mm, the cantilever slab 4 is fixedly installed on the top of roof 1. The thickness of the left side of the cantilever slab 4 is greater than the thickness of the right side, so that the distance between the top of the cantilever slab 4 and the top surface of the lower roof 2 is greater than or equal to 500mm, so that sufficient height is reserved for the sill 3 on roof 2, ensuring that the sill 3 effectively blocks the rainwater from roof 2.

[0019] In at least one embodiment, the height of the cantilever slab 4 above the embankment 3 is h1, 100≤h1≤150mm, and the height of the expansion joint is h2, 50≤h2≤100mm. By setting the height of the cantilever slab 4 above the embankment 3 and the height of the expansion joint, the cantilever slab 4 is guaranteed to have sufficient strength, and the expansion joint of sufficient height avoids collisions during settlement.

[0020] In at least one embodiment, the width of the retaining wall 3 is w, where w ≥ 200 mm. By setting the width of the retaining wall 3 to be greater than or equal to 200 mm, the retaining wall 3 has sufficient thickness to block rainwater and prevent rainwater penetration.

[0021] In at least one embodiment, the width of the intercepting trough 401 is w1, w1≥100mm. The width of the intercepting trough 401 is set to enable sufficient collection and diversion of rainwater on the cantilever slab 4, thereby achieving effective drainage of rainwater.

[0022] In at least one embodiment, the top of the embankment 3 is provided with a slope, and the height of the side of the top surface of the embankment 3 closer to the roof 1 is greater than the height of the side farther from the roof 1. By setting the top surface of the embankment 3 to be inclined, when some rainwater falls on the top surface of the embankment 3, the rainwater can flow along the inclined surface to the side away from the structural joint 100, thus preventing the rainwater from seeping in.

[0023] In at least one embodiment, the sealing layer 5 is a polyurethane sealant. By filling the expansion joint with polyurethane sealant, the polyurethane sealant with good elasticity can deform synchronously when the height of the expansion joint changes, thus ensuring effective sealing of the expansion joint.

[0024] When there is a height difference between roof 1 and roof 2 between two structural units, during waterproofing work at structural joint 100, a retaining wall 3 is fixedly installed on the side of roof 2 near structural joint 100. The retaining wall 3 blocks rainwater from flowing into structural joint 100. Then, a cantilever slab 4 is fixedly installed at the top of roof 1 near structural joint 100. Both the cantilever slab 4 and the retaining wall 3 are reinforced concrete structures to ensure their strength. The retaining wall 3 is located below the cantilever slab 4, and its right side is flush with the right side of the cantilever slab 4. This allows the cantilever slab 4 to effectively cover structural joint 100 and retaining wall 3, preventing rainwater from roof 1 from flowing down from the cantilever slab 4 and over the top of retaining wall 3 into structural joint 100. To ensure effective rainwater isolation, an expansion joint is provided between the top of the sill 3 and the bottom of the cantilever slab 4. This expansion joint prevents direct collision between the cantilever slab 4 and the sill 3 when the roof 1 and roof 2 settle with the foundation, allowing space for the displacement of the roof 1 and roof 2. A sealing layer 5 is filled at the expansion joint to seal it and prevent external rainwater from seeping into the structural joint 100, ensuring effective rainwater isolation. The top of the cantilever slab 4 is equipped with a water interception channel 401. This channel collects and guides rainwater flowing towards the sill 3, allowing it to flow out of the cantilever slab 4 in a front-to-back direction, ensuring effective rainwater drainage and improving the waterproofing effect.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A waterproof structure for a roof structural joint, comprising a roof surface one and a roof surface two located on both sides of the structural joint, wherein the height of roof surface one is greater than the height of roof surface two, characterized in that: A sill is fixedly installed on the top of the side of Roof 2 closest to Roof 1. A cantilever slab is fixedly installed on the side of Roof 1 closest to the sill. The sill is located below the cantilever slab, and the right side of the sill is flush with the right side of the cantilever slab. An expansion joint is provided between the top of the sill and the bottom of the cantilever slab, and the expansion joint is filled with a sealing layer, which is polyurethane sealant. A water interception groove is provided on the top of the cantilever slab along the front-to-back direction. The top of the sill is provided with a slope. The height of the sill's top surface closest to Roof 1 is greater than the height of the side furthest from Roof 1. The height difference between the top surface of the cantilever slab and the top surface of Roof 2 is h. The height of the cantilever slab above the sill is h1. The height of the expansion joint is h2. The width of the sill is w. The width of the water interception groove is w1. Where h ≥ 500 mm, 100 ≤ h1 ≤ 150 mm, 50 ≤ h2 ≤ 100 mm, w ≥ 200 mm, and w1 ≥ 100 mm.

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