Construction method of upright lock edge waterproof heat preservation arc-shaped steel structure roof

Abstract

This application discloses a construction method for a standing seam waterproof and heat-insulating curved steel structure roof. The method involves laying a base plate on a steel grid frame; installing a support frame on the base plate surface; installing several longitudinal square tubes on the support frame; providing through grooves on the upper surface of the longitudinal square tubes that communicate with their interiors; laying moisture-proof cotton and heat-insulating cotton between adjacent longitudinal square tubes to form a moisture-proof and heat-insulating layer; laying a waterproof membrane on the surface of the moisture-proof and heat-insulating layer; and then fixing the waterproof membrane with several fasteners. The waterproof membrane and the moisture-proof and heat-insulating layer are embedded together within the longitudinal square tubes. The roof panel is fastened to the upper embedded parts of several fasteners in two adjacent longitudinal columns on both sides; then the seams between the fasteners and the roof panel are seamed; and finally, a decorative panel is laid on the roof panel, with the gap between the decorative panel and the keel forming a heat insulation layer. This application improves the waterproof, heat-insulating, heat-insulating, and moisture-proof effects of the steel grid roof and reduces the installation difficulty of multi-layered structures.

Description

Technical Field

[0001] This application relates to the field of steel structure roofs, and in particular to a construction method for a standing seam waterproof and heat-insulating curved steel structure roof. Background Technology

[0002] With the rapid development of the construction industry, construction technologies are constantly evolving, no longer limited to traditional methods. Steel space frame roofing, as a key technology in building construction, is an important component of modern construction. It is increasingly widely used in buildings with unique aesthetic designs, and its advantages are particularly evident. Compared to frame-shear wall structures, steel space frame roofing technology allows for more open interior spaces, more diverse and aesthetically pleasing designs, and greater architectural diversity. Large spans and column-free interiors can create single-bay structures to meet specific functional needs, eliminating the need for suspended ceilings and increasing the net height of the space. Furthermore, steel space frame roofing has a short construction cycle, significantly reducing the overall construction period.

[0003] However, in practice, a series of construction challenges often arise, such as: how to ensure that the waterproofing, insulation, heat insulation, and moisture-proofing of the steel space frame roof meet the design and post-use requirements; existing construction techniques and worker operations are prone to leakage and poor insulation of the steel space frame roof; the installation of multiple layers of materials is difficult to achieve the expected functional requirements; and the lack of a good fixing method for intermediate layers results in a lack of a good connection and load-bearing system, as well as damage to the material's sealing. Quality and safety issues caused by a series of non-standard construction techniques have always been a difficult point in the construction of steel space frame roofs, and therefore there is still room for improvement. Summary of the Invention

[0004] In order to improve the waterproof, heat insulation, heat insulation and moisture-proof effects of steel grid roofs and reduce the installation difficulty of multi-layered structures, this application provides a construction method for a standing seam waterproof and heat-insulating curved steel structure roof.

[0005] This application provides a construction method for a standing seam waterproof and thermally insulated curved steel structure roof, which adopts the following technical solution:

[0006] A construction method for a standing seam waterproof and thermally insulated curved steel structure roof includes the following steps:

[0007] S1: Base plate installation: Lay the base plate on the steel space frame, and the base plate covers the surface of the steel space frame;

[0008] S2: Installation of moisture-proof cotton and thermal insulation cotton: Install a support frame on the surface of the base plate, and install several longitudinal square tubes on the support frame. The longitudinal square tubes are distributed at intervals along the curvature of the base plate. The upper surface of the longitudinal square tubes is provided with through grooves that communicate with the interior of the longitudinal square tubes. Moisture-proof cotton and thermal insulation cotton are laid between adjacent longitudinal square tubes. The moisture-proof cotton and thermal insulation layer are stacked to form a moisture-proof and thermal insulation layer. The moisture-proof and thermal insulation layer covers the support frame, and the two sides of the moisture-proof and thermal insulation layer are respectively snapped into the through grooves of the adjacent square tubes.

[0009] S3: Laying waterproof membrane: Lay waterproof membrane on the surface of moisture-proof and heat-insulating layer, and then fix the waterproof membrane with several fasteners. Several fasteners are distributed along the length of the longitudinal square tube. The lower end of the fastener is inserted vertically downward through the through groove and embedded in the longitudinal square tube. The waterproof membrane and the moisture-proof and heat-insulating layer are embedded together in the longitudinal square tube.

[0010] S4: Roof panel installation and edge locking: The roof panel is pressed on site. The roof panel adopts 360° rolled edge. The two sides of the roof panel are respectively fastened to the upper embedded part of several fasteners in two adjacent columns. Then the edge locking is performed on the seam between the fasteners and the roof panel.

[0011] S5: Decorative panel installation: Install several keels on the roof panel, with several keels corresponding to several longitudinal rows of fasteners. The keels are set on the corresponding longitudinal rows of fasteners, and then decorative panels are laid on the several keels. The gap between the decorative panels and the keels forms a heat insulation layer.

[0012] By adopting the above technical solution, the moisture-proof cotton and thermal insulation cotton form a moisture-proof and thermal insulation layer, which is then covered with a layer of waterproof membrane to improve the overall waterproof performance of the materials. This effectively overcomes problems such as poor thermal insulation and sound insulation of steel structures. By utilizing the grooves of the longitudinal square tubes, connection points are provided for the moisture-proof and thermal insulation layer. The waterproof membrane and the moisture-proof and thermal insulation layer are embedded together in the longitudinal square tubes using fasteners, thereby fixing the multi-layer materials and reducing the installation difficulty of multi-layer bonding. In addition, the roof panels are fixed by snapping and locking the upper part of the fasteners, without the need for drilling, which helps to improve the waterproof capacity of the roof structure and construction efficiency. Furthermore, decorative panels are installed on the roof panels to enhance the aesthetics of the overall shape of the curved roof. Due to the setting of the keel, there is a certain space between the roof panels and the decorative panels, which can further form a heat insulation layer, which helps to reduce the temperature difference between indoors and outdoors.

[0013] Preferably, in step S2, the moisture-proof cotton and the heat-insulating cotton are separated by a PE film.

[0014] By adopting the above technical solution, the PE film has moisture resistance and low moisture permeability, which is beneficial to improving the moisture resistance of multilayer materials.

[0015] Preferably, in step S2, the edges of the moisture-proof cotton and the thermal insulation cotton are bound together.

[0016] By adopting the above technical solution, the moisture-proof cotton and the thermal insulation cotton are connected in advance by using a bookbinding method to form a whole and constitute a moisture-proof and thermal insulation layer, so as to facilitate the connection and installation steps and improve the ease of installation of the moisture-proof and thermal insulation layer.

[0017] Preferably, after completing the waterproof membrane construction in step S3, sound-absorbing cotton is laid on the surface of the waterproof membrane and the sound-absorbing cotton is inserted between adjacent longitudinal square tubes. Then, the roof panel installation step in step S4 is carried out, with the sound-absorbing cotton located in the gap between the roof panel and the support frame.

[0018] By adopting the above technical solution, the sound-absorbing cotton plays a role in absorbing noise, thereby reducing noise. The sound-absorbing cotton is confined in the gap between the roof panel and the support frame and separated by longitudinal square tubes. No other fixing method is required, which is conducive to the installation of sound-absorbing materials and improves the installation efficiency of sound-absorbing cotton.

[0019] Preferably, the sound-absorbing cotton is polyester fiber sound-absorbing cotton, and in the roof panel installation step of S4, the bottom surface of the roof panel is pressed against the surface of the polyester fiber sound-absorbing cotton.

[0020] By adopting the above technical solution, polyester fiber sound-absorbing cotton has high elasticity. When compressed, the polyester fiber sound-absorbing cotton can provide support for the roof panel, thus making it convenient for construction workers to walk on the roof panel and to carry out operations such as edge locking.

[0021] Preferably, the lower surface of the keel is provided with a first groove, which extends along the length of the keel; after completing the locking edge step of the roof panel and the fastener in S4, a locking edge structure is formed at the connection between the roof panel and the fastener; in the keel installation step in S5, the first groove on the lower surface of the keel is engaged and fixed with the locking edge structure.

[0022] By adopting the above technical solution, the locking structure formed after the locking steps of the roof panel and the fastener is used to fix the first slot of the keel, which is beneficial to improve the installation efficiency of the keel. At the same time, the keel can improve the structural strength of the decorative panel.

[0023] Preferably, the upper end face of the keel is provided with a second slot, and the two sides of the decorative panel are respectively provided with a snap-fit ​​part, and the snap-fit ​​parts on both sides of the decorative panel are respectively snap-fitted and fixed with the second slots of the two adjacent keels.

[0024] By adopting the above technical solution, the snap-fit ​​part of the decorative panel is snapped into the second slot of the keel, reducing the need for bolts and other locking structures, which helps to improve the installation efficiency and integrity of the decorative panel.

[0025] Preferably, after completing the S5 trim panel installation step, sealant is filled into the second slot.

[0026] By adopting the above technical solution, the sealant can seal the connection between the decorative panel and the keel, reducing the probability of water seepage and improving the connection stability between the decorative panel and the keel.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By setting longitudinal square tubes on the support frame, connection points are provided for the moisture-proof and heat-insulating layer. The waterproof membrane and the moisture-proof and heat-insulating layer are embedded together in the longitudinal square tubes with fasteners, thereby fixing the multi-layer materials and reducing the installation difficulty of multi-layer bonding. In addition, the moisture-proof cotton, heat-insulating cotton and waterproof membrane form a multi-layer material to improve the overall waterproof, moisture-proof and heat-insulating performance of the materials. In addition, decorative panels are installed on the roof panel to improve the overall aesthetics of the curved roof. Due to the setting of the keel, there is a certain space between the roof panel and the decorative panel, which can further form a heat insulation layer, which helps to reduce the temperature difference between indoors and outdoors.

[0029] 2. By laying polyester fiber sound-absorbing cotton on the surface of the waterproof membrane, and pressing the bottom of the roof panel against the surface of the polyester fiber sound-absorbing cotton during the roof panel installation process, the polyester fiber sound-absorbing cotton has high elasticity and sound absorption effect, which can reduce noise. Moreover, the pressed polyester fiber sound-absorbing cotton can provide support for the roof panel, making it easier for construction workers to walk on the roof panel and to perform edge locking and other operations.

[0030] 3. The decorative panels and roof panels are connected by keel, and the keel and decorative panels are quickly assembled by using a snap-fit ​​method. Attached Figure Description

[0031] Figure 1 This is a sectional view of the roof structure in a construction method for a standing, lock-edge, waterproof, and heat-insulating curved steel structure roof according to an embodiment of this application.

[0032] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0033] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Support frame; 3. Keel; 31. Second slot; 32. First slot; 4. Sound-absorbing cotton; 5. Decorative panel; 51. Connecting part; 6. Roof panel; 61. Buckle part; 7. Longitudinal square tube; 71. Through groove; 8. Multi-layer material; 81. Moisture-proof and heat-insulating layer; 811. Moisture-proof cotton; 812. Heat-insulating cotton; 82. Waterproof membrane; 9. Buckle; 91. Upper embedded part; 92. Lower embedded part; 10. Sealant; 11. Limiting strip. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0035] This application discloses a construction method for a standing seam waterproof and heat-insulating curved steel structure roof. (Refer to...) Figure 1 and Figure 2 This includes the following steps:

[0036] S1: Installation of Base Plate 1: In this embodiment, the roof adopts an arc-shaped steel grid structure, with conventional main and secondary purlins as the roof support structure. The base plate 1, a perforated profiled base plate, is hoisted onto the roof in unit form using a crane. The base plate 1 is pre-laid on the main and secondary purlins of the arc-shaped steel grid, and then the connections between base plates 1 are made, with the joints secured using sealant 10. Self-tapping screws are then used to connect the base plate 1 to the purlins, ultimately covering the surface of the steel grid. After installation, an acceptance inspection is conducted, and only after passing the inspection can the next step of construction proceed.

[0037] S2: Installation of moisture-proof cotton 811 and insulation cotton 812: A support frame 2 is installed on the surface of the base plate 1, and the support frame 2 is fixed to the base plate 1 with rivets. Several longitudinal square tubes 7 are installed on the support frame 2, and the longitudinal square tubes 7 are spaced apart along the curvature direction of the base plate 1. The longitudinal square tubes 7 are fixed to the support frame 2 with bolts. A through groove 71 communicating with the internal cavity of the longitudinal square tube 7 is opened on the upper surface of the longitudinal square tube 7. The length direction of the through groove 71 is consistent with the length direction of the square tube.

[0038] Then, moisture-proof cotton 811 and insulation cotton 812 are laid between adjacent longitudinal square tubes 7. The moisture-proof cotton 811 and insulation cotton 812 are stacked to form a moisture-proof and insulation layer 81. The moisture-proof and insulation layer 81 covers the support frame 2. The two sides of the moisture-proof and insulation layer 81 are respectively snapped into the through grooves 71 of the adjacent longitudinal square tubes 7. Specifically, the side edge of the moisture-proof and insulation layer 81 passes through the through grooves 71 and extends into the internal cavity of the square tube, thereby temporarily fixing the moisture-proof and insulation layer 81 between two adjacent longitudinal square tubes 7.

[0039] In this embodiment, the moisture-proof cotton 811 is glass wool, and the thermal insulation cotton 812 is double-sided aluminum foil fiberglass insulation cotton 812. The moisture-proof cotton 811 is located in the lower layer, and the thermal insulation cotton 812 is located in the upper layer, with a PE film separating the moisture-proof cotton 811 and the thermal insulation cotton 812. The edges of the moisture-proof cotton 811 and the thermal insulation cotton 812 are stapled together to form a moisture-proof and thermal insulation layer 81 for connection and installation.

[0040] S3: Laying the waterproof membrane 82: The waterproof membrane 82 is laid on the surface of the moisture-proof and heat-insulating layer 81. The waterproof membrane 82 covers the surface of the heat-insulating cotton 812, and the side of the waterproof membrane 82 passes through the through groove 71 and enters the internal cavity of the longitudinal square tube 7. The waterproof membrane 82, the heat-insulating cotton 812, and the moisture-proof cotton 811 constitute a multi-layer material 8. Then, the waterproof membrane 82 is fixed with several fasteners 9, which are distributed along the length of the longitudinal square tube 7.

[0041] In this embodiment, the fastener 9 is composed of two T-shaped brackets arranged in opposite directions. The horizontal surfaces of the two T-shaped brackets are aligned and fixed to each other, and the vertical parts of the two T-shaped brackets extend in a direction away from each other. The ends of the vertical parts of the T-shaped brackets are provided with locking heads. The locking head of the upper T-shaped bracket serves as the upper insertion part of the fastener 9, and the locking head of the lower T-shaped bracket serves as the lower insertion part 92 of the fastener 9.

[0042] When fixing the waterproof membrane 82 and the moisture-proof insulation layer 81, the lower end of the fastener 9 is inserted vertically downward through the through groove 71 and embedded into the internal cavity of the longitudinal square tube 7. At the same time, the multi-layer material 8 consisting of the waterproof membrane 82 and the moisture-proof insulation layer 81 is embedded into the longitudinal square tube 7. The fastener 9 presses against the waterproof membrane 82. While fixing the waterproof membrane 82 and the moisture-proof insulation layer 81, the tightness between the longitudinal square tube 7 and the multi-layer material 8 is also improved, which helps to reduce water seepage.

[0043] After the waterproof membrane 82 is installed, sound-absorbing cotton 4 is laid on the surface of the waterproof membrane 82. The sound-absorbing cotton 4 is made of polyester fiber. A piece of sound-absorbing cotton 4 is placed between every two longitudinal square tubes 7. The sound-absorbing cotton 4 is clipped between adjacent longitudinal square tubes 7 so that the multi-layer material 8 is tightly attached to the side wall of the longitudinal square tube 7.

[0044] S4: Roof Panel 6 Installation and Edge Sealing: The aluminum-magnesium-manganese alloy roof panel 6 is pressed on-site. The roof panel 6 is installed upright on both sides and features 360° rolled edges to form snap-fit ​​parts 61. These snap-fit ​​parts 61 on both sides of the roof panel 6 are respectively fastened to the upper embedded parts of several snap-fit ​​pieces 9 in two adjacent longitudinal rows. The bottom surface of the roof panel 6 is pressed tightly against the surface of the polyester fiber sound-absorbing cotton 4, thereby confining the sound-absorbing cotton 4 in the gap between the roof panel 6 and the support frame 2. The polyester fiber sound-absorbing cotton 4 has high elasticity; when compressed, it provides support for the roof panel 6, facilitating movement of construction personnel on the roof panel 6. Then, the seams between the snap-fit ​​pieces 9 and the roof panel 6 are sealed.

[0045] In this embodiment, the same fastener 9 needs to connect the fastening parts 61 of two roof panels 6. Therefore, the fastening method is adopted. First, the fastening part 61 of one roof panel 6 is fastened to the upper embedded part of the fastener 9. Then, the fastening part 61 of the other roof panel 6 is fastened to the fastening part 61 of the previous roof panel 6. Then, the edge locking construction is carried out to form an edge locking structure.

[0046] S5: Installation of decorative panel 5: Install several keels 3 on the roof panel 6. The several keels 3 correspond to several longitudinal rows of fasteners 9. The keels 3 are set on the corresponding longitudinal rows of fasteners 9. Then, the decorative panel 5 is laid on the several keels 3. The gap between the decorative panel 5 and the keel 3 forms a heat insulation layer.

[0047] In this embodiment, a first slot 32 is provided on the lower surface of the keel 3, extending along the length of the keel 3. A second slot 31 is provided on the upper surface of the keel 3, extending along the length of the keel 3. The first slot 32 on the lower surface of the keel 3 is engaged and fixed with the locking edge structure.

[0048] On-site pressing of decorative panel 5, which is an aluminum plate, involves bending both sides of the decorative panel 5 downwards first, and then bending them towards each other, so that the two sides of the decorative panel 5 form inwardly hooked snap-fit ​​parts 51 respectively.

[0049] A set of decorative panels 5 are set between adjacent keels 3. When installing the decorative panels 5, the snap-fit ​​parts 51 on both sides of the decorative panels 5 are snap-fitted and fixed to the second snap-fit ​​grooves 31 of the two adjacent keels 3 respectively. Then, sealant 10 is injected into the second snap-fit ​​grooves 31, and a limiting strip 11 is inserted between the two snap-fit ​​parts 51 in the second snap-fit ​​grooves 31. The limiting strip 11 blocks the second snap-fit ​​grooves 31 and also stabilizes the snap-fit ​​parts 51 of the decorative panels 5 in the second snap-fit ​​grooves 31. This helps to improve the stability and sealing between the decorative panels 5 and the keels 3. In addition, the limiting strip 11 covers the surface of the sealant 10, which avoids the probability of the sealant 10 being exposed and helps to improve the problem of sealant 10 aging.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction method for a standing seam waterproof and heat-insulating curved steel structure roof, characterized in that: Includes the following steps: S1: Installation of base plate (1): The base plate (1) is laid on the steel space frame, and the base plate (1) covers the surface of the steel space frame; S2: Installation of moisture-proof cotton (811) and insulation cotton (812): Install a support frame (2) on the surface of the base plate (1), install several longitudinal square tubes (7) on the support frame (2), the several longitudinal square tubes (7) are distributed at intervals along the arc direction of the base plate (1), the upper surface of the longitudinal square tubes (7) is provided with a through groove (71) that communicates with the interior of the longitudinal square tubes (7), and moisture-proof cotton (811) and insulation cotton (812) are laid between adjacent longitudinal square tubes (7), the moisture-proof cotton (811) and insulation cotton (812) are stacked and form a moisture-proof and insulation layer (81), the moisture-proof and insulation layer (81) covers the support frame (2), and the two sides of the moisture-proof and insulation layer (81) are respectively snapped into the through groove (71) of the adjacent longitudinal square tubes (7); S3: Laying waterproof membrane (82): Lay waterproof membrane (82) on the surface of moisture-proof insulation layer (81), and then fix waterproof membrane (82) with several fasteners (9). Several fasteners (9) are distributed along the length of longitudinal square tube (7). The lower end of the fastener (9) is embedded (92) vertically downward through the through groove (71) and embedded in the longitudinal square tube (7), and the waterproof membrane (82) and the moisture-proof insulation layer (81) are embedded together in the longitudinal square tube (7). S4: Roof panel (6) installation and edge locking: The roof panel (6) is pressed on site. The roof panel (6) adopts 360° rolled edge. The two sides of the roof panel (6) are respectively fastened to the upper embedded part of several fasteners (9) in two adjacent columns. Then the edge locking is performed on the seam between the fasteners (9) and the roof panel (6). S5: Installation of decorative panel (5): Install several keels (3) on the roof panel (6), with several keels (3) corresponding to several longitudinal rows of fasteners (9). The keels (3) are set on the corresponding longitudinal rows of fasteners (9). Then, the decorative panel (5) is laid on the several keels (3). The gap between the decorative panel (5) and the keel (3) forms a heat insulation layer.

2. The construction method for a standing seam waterproof and heat-insulating curved steel structure roof according to claim 1, characterized in that: In S2, the moisture-proof cotton (811) and the heat-insulating cotton (812) are separated by a PE film.

3. The construction method for a standing seam waterproof and heat-insulating curved steel structure roof according to claim 1, characterized in that: In S2, the edges of the moisture-proof cotton (811) and the thermal insulation cotton (812) are bound together.

4. The construction method for a standing seam waterproof and heat-insulating curved steel structure roof according to claim 1, characterized in that: After completing the construction of the waterproof membrane (82) in S3, sound-absorbing cotton (4) is laid on the surface of the waterproof membrane (82). The sound-absorbing cotton (4) is placed between adjacent longitudinal square tubes (7). Then, the roof panel (6) installation step in S4 is carried out. The sound-absorbing cotton (4) is located in the gap between the roof panel (6) and the support frame (2).

5. The construction method for a standing seam waterproof and heat-insulating curved steel structure roof according to claim 4, characterized in that: The sound-absorbing cotton (4) is polyester fiber sound-absorbing cotton (4). In the roof panel (6) installation step of S4, the bottom surface of the roof panel (6) is pressed against the surface of the polyester fiber sound-absorbing cotton (4).

6. The construction method for a standing seam waterproof and heat-insulating curved steel structure roof according to claim 1, characterized in that: The lower surface of the keel (3) is provided with a first slot (32), which extends along the length of the keel (3). After the locking edge step of the roof panel (6) and the fastener (9) in S4 is completed, the connection between the roof panel (6) and the fastener (9) forms a locking edge structure. In the keel (3) installation step in S5, the first slot (32) on the lower surface of the keel (3) is engaged and fixed with the locking edge structure.

7. The construction method for a standing seam waterproof and heat-insulating curved steel structure roof according to claim 6, characterized in that: The upper end face of the keel (3) is provided with a second slot (31), and the two sides of the decorative panel (5) are respectively provided with a snap-fit ​​part (51). The snap-fit ​​parts (51) on both sides of the decorative panel (5) are respectively snap-fitted and fixed with the second slot (31) of the two adjacent keels (3).

8. The construction method for a standing seam waterproof and heat-insulating curved steel structure roof according to claim 7, characterized in that: After completing the installation steps of the S5 trim panel (5), fill the second slot (31) with sealant (10).

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