Polycarbonate hollow plate connecting structure of building roof lighting system and construction method

Abstract

The invention discloses a polycarbonate hollow plate connecting structure of a building roof lighting system and a construction method, and relates to the technical field of building construction.The connecting structure comprises main keels fixed to a ridge and a gutter of a roof, secondary keels transversely connected between the adjacent main keels and polycarbonate hollow plates installed between the adjacent secondary keels; the polycarbonate hollow plate is a hollow plate with flying wings on two sides; the secondary keel is an integrated pouring keel with the cross section being of an inverted-T-shaped structure; sealing rubber strips penetrate through the flying wings of the polycarbonate hollow plate and are lapped on the two sides of the inverted-T-shaped structure, a buckle cover is fixed to the top of the inverted-T-shaped structure through bolts, and the flying wings of the polycarbonate hollow plate are pressed in the buckle cover; the ends, not provided with the flying wings, of the polycarbonate hollow plates are provided with sealing rubber strips for sealing and fixed to the two sides of the ridge through n-shaped connecting pieces, and the two sides of the ridge are further provided with waterproof suites and ridge buckling covers. The technical problems that in the prior art, the construction technology is tedious, and roof rain leakage is likely to be caused are solved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a polycarbonate hollow plate connection structure and a construction method for a building roof lighting system. Background Art

[0002] Glass is usually used for building roof lighting, but glass is heavy and fragile, which makes installation inconvenient and prone to safety hazards. Polycarbonate hollow boards have the characteristics of light weight and high strength while having sufficient light transmittance. In building roof lighting, polycarbonate hollow boards are replacing glass as a new material for building roof lighting and are being used more and more widely.

[0003] Polycarbonate hollow panels generally adopt a U-shaped connection method. Aluminum alloy buckle strips with waterproof strips are used as upper buckle covers for fixation at the joints between the panels. The gaps are sealed with sealants. The construction process is relatively complicated, and the sealants are greatly affected by construction environmental factors. Improper construction and damage and cracking can easily cause roof leaks, thereby damaging the overall waterproof performance of the roof system. Summary of the invention

[0004] In order to solve the above technical problems existing in the prior art, the embodiment of the present invention provides a polycarbonate hollow plate connection structure and construction method for a building roof lighting system. The technical solution is as follows:

[0005] On the one hand, an embodiment of the present invention provides a polycarbonate hollow panel connection structure for a building roof lighting system, comprising: a main keel fixed at the ridge and gutter of the roof, a secondary keel transversely connected between adjacent main keels, and a polycarbonate hollow panel installed between adjacent secondary keels; wherein the polycarbonate hollow panel is a hollow panel with wings on both sides; the secondary keel is an integrated cast keel with a convex U-shaped structure in cross section; a sealing strip is inserted into the wings of the polycarbonate hollow panel and placed on both sides of the convex U-shaped structure, a keel buckle cover is fixed to the top of the convex U-shaped structure by buckle cover bolts, and the wings of the polycarbonate hollow panel are pressed inside the keel buckle cover; the end of the polycarbonate hollow panel without wings is sealed with a sealing strip, and fixed to both sides of the ridge by an I-shaped connecting piece, and a waterproof kit and a ridge buckle cover are also provided on both sides of the ridge.

[0006] Furthermore, the main keel is supported on the steel beams at the ridge and gutter of the roof through square tube columns.

[0007] Furthermore, an L-shaped support is arranged on the side of the main keel, and both ends of the secondary keel are fixed on the L-shaped support; a purlin support is also arranged on the steel beam of the roof, and the bottom of the secondary keel is fixed to the top of the purlin support by bolts.

[0008] Furthermore, the purlin support includes a circular tube base and a steel plate fixed to the top of the circular tube base; and an oblong hole is arranged on the steel plate.

[0009] Furthermore, a slot is provided on the shoulder of the convex structure of the secondary keel, and a sealing strip is provided inside the slot.

[0010] On the other hand, a construction method for a polycarbonate hollow plate connection structure of a building roof lighting system is provided, comprising: measuring and laying out the roof to determine the installation positions of the main keel and the purlin support; installing the purlin support on the steel beam of the roof, and installing the main keel at the ridge and gutter of the roof; installing an L-shaped support on the side of the main keel; two opposite L-shaped supports on adjacent main keels are in the same straight line with the middle purlin support; fixing the two ends of the secondary keel to the two opposite L-shaped supports on the adjacent keels, supporting the middle part of the secondary keel on the purlin support, and fixing it by bolts; inserting sealing strips through the two side wings of the polycarbonate hollow plate and placing them on both sides of the convex structure of the secondary keel, and then fixing the keel buckle cover on the top of the convex structure; setting sealing strips at the ends of the polycarbonate hollow plate where no wings are set to seal, and fixing them to both sides of the ridge through an I-shaped connecting piece; setting waterproof kits on both sides of the ridge for sealing, and connecting them through the ridge buckle cover.

[0011] Furthermore, the main keel is installed at the ridge and gutter of the roof, including: supporting the main keel on the steel beams at the ridge and gutter of the roof through square tube columns; wherein the main keel and the square tube columns are fixed by welding, and the square tube columns are fixed to the steel beams at the ridge and gutter of the roof by welding.

[0012] Furthermore, fixing a buckle cover on the top of the convex-shaped structure includes: fixing the keel buckle cover to the top of the convex-shaped structure by buckle cover bolts.

[0013] Furthermore, the method further comprises: using sealant to seal the studs of the buckle cover bolts and the overlap between the ridge buckle cover and the polycarbonate hollow plate.

[0014] The present invention provides a polycarbonate hollow plate connection structure and a construction method for a building roof lighting system. Compared with the traditional construction method, the construction steps are optimized, the process is simple, the risk of roof leakage is reduced, and the technical problems of the prior art that the construction process is complicated and easily causes roof leakage are alleviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of a polycarbonate hollow plate connection structure of a building roof lighting system provided by an embodiment of the present invention;

[0017] Figure 2 A cross-sectional view of a polycarbonate hollow plate overlapped between secondary keels provided in an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of the connection structure between a polycarbonate hollow plate and a secondary keel provided in an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of the side connection of a polycarbonate hollow plate without wing provided in an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of main keel installation provided by an embodiment of the present invention;

[0021] Figure 6 A schematic diagram of the structure of a purlin support provided in an embodiment of the present invention;

[0022] Figure 7 A flow chart of a construction method of a polycarbonate hollow plate connection structure of a building roof lighting system provided by an embodiment of the present invention.

[0023] In the figure: 1. main keel, 2. secondary keel, 3. polycarbonate hollow board, 4. flying wing, 5. sealing strip, 6. buckle cover bolt, 7. keel buckle cover, 8. I-shaped connecting piece, 9. waterproof kit, 10. ridge buckle cover, 11. square tube column, 12. L-shaped support, 13. purlin support, 14. round tube base, 15. steel plate, 16. oblong hole, 17. nylon gasket, 18. slot. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is described below in conjunction with the accompanying drawings.

[0025] In the embodiments of the present invention, words such as "exemplarily" and "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "example" in the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "example" is intended to present the concept in a specific way. In addition, in the embodiments of the present invention, the meaning expressed by "and / or" can be both, or it can be either of the two.

[0026] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0027] Embodiment 1

[0028] Figure 1 Schematic diagram of a polycarbonate hollow plate connection structure of a building roof lighting system provided by an embodiment of the present invention. Figure 1 As shown, it includes: a main keel 1 fixed at the ridge and gutter of the roof, a secondary keel 2 transversely connected between adjacent main keels 1, and a polycarbonate hollow plate 3 installed between adjacent secondary keels 2.

[0029] Figure 2 1 is a cross-sectional view of a polycarbonate hollow plate overlapped between secondary keels provided according to an embodiment of the present invention. Figure 2 As shown, the polycarbonate hollow plate 3 is a hollow plate with wings 4 on both sides; the secondary keel 2 is an integrated cast keel with a convex U-shaped structure in cross section.

[0030] Figure 3 Schematic diagram of the connection structure between a polycarbonate hollow plate and a secondary keel provided according to an embodiment of the present invention. Figure 3 As shown, the sealing strip 5 is inserted into the wing 4 of the polycarbonate hollow plate 3 and is placed on both sides of the convex structure. The top of the convex structure is fixed with a keel buckle cover 7 by buckle cover bolts 6, and the wing 4 of the polycarbonate hollow plate 3 is pressed inside the keel buckle cover 7.

[0031] Preferably, if Figure 3 As shown, the column head of the cover bolt 6 is also sealed with a sealant 17. Optionally, the sealant 17 includes a silicone structural weatherproof sealant.

[0032] Figure 4 Schematic diagram of the side connection of a polycarbonate hollow plate without wing provided by an embodiment of the present invention. Figure 4 As shown, the ends of the polycarbonate hollow board 3 without the wings 4 are sealed with sealing strips 5 and fixed to both sides of the ridge through a cross-shaped connecting piece 8. Waterproof kits 9 and ridge buckle covers 10 are also provided on both sides of the ridge.

[0033] Figure 5Schematic diagram of main keel installation according to an embodiment of the present invention. Figure 5 As shown, in an optional implementation provided by an embodiment of the present invention, the main keel 1 is supported on the steel beams at the ridge and gutter of the roof through square tube columns 11.

[0034] like Figure 5 As shown, an L-shaped support 12 is provided on the side of the main keel 1 , and both ends of the secondary keel 2 are fixed on the L-shaped support 12 .

[0035] like Figure 1 As shown, a purlin bracket 13 is also arranged on the steel beam of the roof, and the bottom of the secondary keel 2 is fixed to the top of the purlin bracket 13 by bolts.

[0036] Figure 6 is a structural schematic diagram of a purlin support provided according to an embodiment of the present invention. Figure 6 As shown, the purlin bracket 13 includes a round tube base 14 and a steel plate 15 fixed to the top of the round tube base 14; an oblong hole 16 is provided on the steel plate 15. The oblong hole 16 is convenient for adjusting the error when the secondary keel 2 is installed on the purlin bracket 13.

[0037] In an optional implementation provided by an embodiment of the present invention, the purlin support 13 is composed of a Φ114mm×5mm round tube base 14+210mm×210mm×6mm steel plate 15, with a spacing of 1.2m.

[0038] In an optional implementation provided by the embodiment of the present invention, a nylon gasket 17 is further provided on the upper surface of the steel plate 15 .

[0039] like Figure 3 As shown, a slot 18 is arranged on the shoulder of the convex structure of the secondary keel 2 , and a sealing strip 5 is arranged inside the slot 18 .

[0040] Embodiment 2

[0041] Figure 7 1 is a flow chart of a construction method of a polycarbonate hollow plate connection structure of a building roof lighting system provided by an embodiment of the present invention. Figure 7 As shown, the method specifically comprises the following steps:

[0042] Step S702, measuring and laying out the roof to determine the installation positions of the main keel and purlin support.

[0043] Specifically, the axis and elevation of the roof steel beam are re-measured according to the provided building axis, elevation, axis reference point, and elevation level point. The axis and elevation are measured to the top of the roof steel beam, and the position of the supporting purlin is marked, with the error controlled within 1.5mm.

[0044] Use total station, level and tape measure to lay out the center line of keel and purlin, determine the position of keel and purlin. Re-measure the structural elevation of steel beam at purlin, and feed the re-measured data to the manufacturer to adjust the length of purlin, so as to solve the installation error of steel structure, ensure the drainage slope of roof meets the design requirements after installation, and eliminate the quality problem of local depression and protrusion of roof.

[0045] Step S704, installing purlin supports on the steel beams of the roof, and installing main keels at the ridge and gutter of the roof.

[0046] Specifically, first install the purlin support according to the layout position. The purlin support is fixed on the roof steel beam by surrounding welding with corner welds all around. The weld foot height is 5mm. After installation, re-measure the purlin support elevation and control the error within 2mm. The installation of purlin support should ensure that the spacing meets the requirements of the drawings and meets the requirements of force and aesthetics.

[0047] Then install nylon gaskets on the purlin support steel plates to prevent the purlin support from direct contact with the aluminum profile keel and chemical reaction, which would affect the installation of the roof structure.

[0048] Specifically, the main keel is a steel keel, which is supported on the steel beams at the ridge and gutter of the roof through square tube columns; wherein the main keel and the square tube columns are fixed by welding, and the square tube columns are fixed to the steel beams at the ridge and gutter of the roof by welding.

[0049] Specifically, during installation, the center lines of the main keel and the square tube column should be aligned. Fillet welds should be used all around the main keel, square tube column and steel beam, with a weld foot height of 5mm.

[0050] The elevation and center line of the main keel installation affect the roof drainage slope. During installation, a through line is pulled to keep the keel straight. After installation, a level is used to measure and control the elevation and center line of the main keel, and the error is controlled within 2mm.

[0051] Step S706, installing L-shaped supports on the sides of the main purlins; two opposite L-shaped supports on adjacent main purlins are in the same straight line with the middle purlin support.

[0052] Specifically, an L-shaped steel bracket is installed on the side of the main keel to support the secondary keel. The L-shaped brackets are spaced 1.2m apart. The two L-shaped brackets and the round tube purlin bracket form a straight line with the slope of the roof drainage slope. The L-shaped bracket and the main keel are welded around with fillet welds, and the height of the weld leg is 5mm. During installation, the positioning and elevation of the L-shaped bracket should be focused on, and the error should be controlled within 2mm. An oblong hole is set on the bracket to facilitate the adjustment of the error when the secondary keel is installed on the purlin bracket.

[0053] Step S708, fixing the two ends of the secondary keel to two opposite L-shaped supports on the adjacent keels, supporting the middle part of the secondary keel on the purlin support, and fixing them with bolts.

[0054] Specifically, the secondary keel is an aluminum profile keel. During installation, first insert the sealing strip and stainless steel bolts into the reserved slot of the secondary keel, then install the secondary keel on the L-shaped supports at both ends, and support the middle part of the secondary keel on the round tube purlin support. Finally, use the stainless steel bolts in the slot to temporarily fix the secondary keel to the L-shaped supports and round tube purlin supports. Use a level to accurately calibrate and then tighten the bolts.

[0055] The sealing strips in the card slot are arranged throughout the length, and the hollow board is laid on top to ensure that the node is a sealed cavity after the hollow board is installed to avoid the hidden danger of rain leakage.

[0056] In the method provided by the embodiment of the present invention, after the primary and secondary keels are accepted, the welds are first cleaned and polished, and the rusted areas of the primary and secondary keels are polished, and then the primer, mid-coat and topcoat are applied. When applying, the thickness and surface quality of the coating should be controlled to prevent dripping.

[0057] Step S710, insert sealing strips into the wings on both sides of the polycarbonate hollow board and place them on both sides of the convex structure of the secondary keel, and then fix the keel buckle cover on the top of the convex structure.

[0058] Specifically, before installation, remove debris from the installation surface of the aluminum profile keel and check whether the wings on both sides of the hollow plate are damaged, broken, deformed, etc.

[0059] First, the protective film around the polycarbonate hollow board is peeled off to prevent the protective film on the polycarbonate sheet from not being well combined with the sealing strip, affecting the waterproof effect. Then the installation of the polycarbonate board is tested and the polycarbonate board is temporarily fixed on the keel to check whether the size is qualified. After the inspection is qualified, it is officially fixed.

[0060] Specifically, the keel buckle cover is fixed to the top of the convex structure by buckle cover bolts.

[0061] The buckle cover installation is divided into the buckle cover fixing installation of the wing hollow plate and the buckle cover sealing installation at the ridge.

[0062] To install the fixed buckle cover of the wing hollow panel, first insert the sealing strip on the wing, and then use bolts to fix the buckle cover to the aluminum profile keel. The buckle cover tightly presses the wings on both sides of the hollow panel, and the bolt studs are sealed with silicone structural weather-resistant sealant.

[0063] Step S712, sealing strips are provided at the ends of the polycarbonate hollow board where no wings are provided, and the ends are fixed to both sides of the roof ridge via an "X"-shaped connecting piece.

[0064] Step S714, setting waterproof kits on both sides of the ridge for sealing, and connecting them through the ridge buckle cover.

[0065] Optionally, the method provided by the embodiment of the present invention further comprises: using sealant to seal the studs of the buckle cover bolts and the overlap between the ridge buckle cover and the polycarbonate hollow board.

[0066] Specifically, the sealing buckle cover installation at the ridge first uses a sealing strip to seal the end of the hollow board, and then connects the ends of the hollow boards on both sides of the ridge with a "X"-shaped connecting piece. Finally, the aluminum alloy plate is used to seal the 400mm range on both sides of the ridge. The aluminum alloy plate is installed with a waterproof kit on both sides of the ridge for sealing and waterproofing. The buckle cover connection is overlapped by 20mm, and the overlapped staggered seams are sealed with silicone structural weather-resistant sealant.

[0067] From the above description, it can be seen that the embodiment of the present invention provides a polycarbonate hollow plate connection structure and construction method for a building roof lighting system, using a polycarbonate hollow plate with flying wings, and after installing the keel buckle cover, a closed system is formed at the node. Even if the node closed system fails, water will not leak due to the blocking of the flying wings. Compared with the prior art, the present invention has the following technical effects:

[0068] 1Economic benefits:

[0069] The canopy roof system of this project uses polycarbonate flying wing hollow board. Compared with the traditional construction method, it optimizes the construction steps, simplifies the process, and reduces the risk of roof leakage. This project has a total of about 60,000 square meters of hollow boards. The construction of every 1,000 square meters of hollow boards saves 5 labors, shortening the installation period by 12 days in total. Based on the labor cost of 200 yuan / day, the cost is saved by 720,000 yuan, which has good economic benefits.

[0070] 2 Social Benefits:

[0071] In the lighting of building roofs, polycarbonate hollow boards are replacing glass as a new material for building roof lighting, and their application is becoming more and more widespread. The application of this technology in Xiongan Station ensures the quality of roof installation, completes the roof installation ahead of schedule, and smoothly delivers it for use, ensuring that the project is smoothly opened to traffic on schedule. It provides an effective method for the construction of similar polycarbonate hollow boards, provides a guarantee for the smooth and safe completion of the project, and has good social benefits.

[0072] 3Energy-saving and environmental protection benefits:

[0073] Polycarbonate sun panels are thermoplastic resins that are colorless, transparent, odorless, granular and non-toxic. They have a lower thermal conductivity than ordinary glass and other plastics, and their heat insulation effect is 7%-25% higher than that of equivalent glass. The heat insulation of PC panels is up to 49%, which greatly reduces heat loss. When used in buildings with heating equipment, they have good energy-saving and environmental protection benefits.

[0074] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A polycarbonate hollow plate connection structure for a building roof lighting system, characterized in that: include: Main keels fixed at the ridge and gutter of the roof, secondary keels horizontally connected between adjacent main keels, and polycarbonate hollow panels installed between adjacent secondary keels; wherein, The polycarbonate hollow plate is a hollow plate with wings on both sides; the secondary keel is an integrated cast keel with a convex U-shaped cross section; The flying wings of the polycarbonate hollow plate are penetrated with sealing strips and placed on both sides of the convex structure. The top of the convex structure is fixed with a keel buckle cover by buckle cover bolts, and the flying wings of the polycarbonate hollow plate are pressed inside the keel buckle cover; The ends of the polycarbonate hollow board without wings are sealed with sealing strips and fixed to both sides of the ridge through I-shaped connecting pieces. Waterproof kits and ridge buckle covers are also provided on both sides of the ridge.

2. The polycarbonate hollow plate connection structure of the building roof lighting system according to claim 1, characterized in that: The main keel is supported on the steel beams at the ridge and gutter of the roof through square tube columns.

3. The polycarbonate hollow plate connection structure of the building roof lighting system according to claim 1, characterized in that: An L-shaped support is provided on the side of the main keel, and both ends of the secondary keel are fixed on the L-shaped support; Purlin supports are also arranged on the steel beams of the roof, and the bottom of the secondary keel is fixed to the top of the purlin support by bolts.

4. The polycarbonate hollow plate connection structure of the building roof lighting system according to claim 3, characterized in that: The purlin support comprises a circular tube base and a steel plate fixed on the top of the circular tube base; an oblong hole is arranged on the steel plate.

5. The polycarbonate hollow plate connection structure of the building roof lighting system according to claim 1, characterized in that: A slot is arranged on the shoulder of the convex structure of the secondary keel, and a sealing strip is arranged inside the slot.

6. A construction method for a polycarbonate hollow plate connection structure of a building roof lighting system according to any one of claims 1 to 5, characterized in that: include: Measure and lay out the roof to determine the installation positions of the main keel and purlin support; Installing the purlin brackets on the steel beams of the roof, and installing the main keels at the ridge and gutter of the roof; An L-shaped support is installed on the side of the main keel; two opposite L-shaped supports on adjacent main keels are in the same straight line with the middle purlin support; Fixing the two ends of the secondary keel to two opposite L-shaped brackets on the adjacent keels, supporting the middle part of the secondary keel on the purlin bracket, and fixing them with bolts; Insert sealing strips on the wings on both sides of the polycarbonate hollow board and place them on both sides of the convex structure of the secondary keel, and then fix the keel buckle cover on the top of the convex structure; The ends of the polycarbonate hollow board without wings are sealed with sealing strips, and fixed to both sides of the ridge through an "X"-shaped connecting piece; Waterproof kits are arranged on both sides of the ridge for sealing and are connected through ridge buckle covers.

7. The method according to claim 6, characterized in that: Installing the main keel at the ridge and gutter of the roof includes: The main keel is supported on the steel beams at the ridge and gutter of the roof through square tube columns; wherein the main keel and the square tube columns are fixed by welding, and the square tube columns are fixed to the steel beams at the ridge and gutter of the roof by welding.

8. The method according to claim 6, characterized in that: Fixing a buckle cover on the top of the convex-shaped structure includes: fixing the keel buckle cover on the top of the convex-shaped structure by buckle cover bolts.

9. The method according to claim 8, characterized in that: The method further comprises: using sealant to seal the studs of the buckle cover bolts and the overlap between the ridge buckle cover and the polycarbonate hollow plate.

Images