A frame-supported daylighting roof assembly connection system and construction method

Abstract

The application discloses a frame support type daylighting roof assembly connection system and a construction method, which splits the original bracket structure into support bases, middle connecting pieces, keels, transverse keel lap joints and the like unit forms, can be processed and welded in a factory, can be hoisted and installed during construction, realizes assembly installation, improves work efficiency, reduces labor cost and construction time, and can accurately adjust the height of each bracket and accurately control the inclination angle of the daylighting roof at different positions according to different modeling requirements, so as to meet various complex modeling requirements, especially for the arc-shaped daylighting roof, the size can be accurately controlled, and the modeling deviation can be avoided. In addition, the middle section of the bracket is cut off, the annular waterproof structure is arranged between the middle connecting piece and the support base, the assembly construction requirement of the daylighting roof is met, and efficient waterproof and anti-seepage on the circular pipe are realized.

Description

Technical Field

[0001] This invention belongs to the field of building curtain wall technology, and in particular relates to a prefabricated connection system and construction method for frame-supported skylights. Background Technology

[0002] Framed skylights are widely used in various large public buildings due to their large span and high transparency. However, since skylights are located at the top of buildings and are subjected to complex effects of wind loads, snow loads, and temperature stresses over a long period of time, the reliability of their structural connections is crucial.

[0003] Currently, the mainstream construction method in the industry is still on-site welding. For example, see... Figure 4 The main keel and corbel, as well as the main keel and secondary keel, are all connected by welding. This method has the following significant drawbacks: First, the construction environment is complex, and the welding quality during high-altitude operations is difficult to meet laboratory standards, which can easily lead to structural brittleness and cracking. Second, thermal deformation leads to poor construction precision. For the complex free-form surfaces pursued in modern architecture, the welded fixed nodes have almost no adjustment margin, resulting in misalignment and uneven stress on the final installed glass panels. Third, waterproofing at penetration points often relies solely on sealant, which is prone to cracking and leakage under the combined effects of ultraviolet radiation and structural displacement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a prefabricated connection system and construction method for frame-supported skylights, so as to solve the technical problems of low prefabrication degree, insufficient construction efficiency, difficulty in accurately controlling the size of curved skylights and poor waterproofing effect of corbels in existing frame-supported skylights.

[0005] To solve the above problems, the technical solution of the present invention is as follows: The present invention provides a prefabricated connection system for a frame-supported skylight, comprising: Support base, fixed to the external building's main steel structure; An intermediate connector, the first end of which is connected to the support base; A ring-shaped waterproof structure is sandwiched between the intermediate connector and the support base, and the ring-shaped waterproof component is configured such that its outer edge extends out of the upper end face of the support base; The keel is connected to the second end of the intermediate connector via a height adjustment component; wherein the height adjustment component is configured to adjust and fix the relative height between the keel and the intermediate connector; A transverse keel overlap base is disposed on the keel. The transverse keel overlap base is configured to sleeve or nest an outer keel unit, and the transverse relative position between the transverse keel overlap base and the outer keel unit is adjusted and fixed by a transverse adjustment component.

[0006] The frame-supported prefabricated connection system for skylights of the present invention includes an annular waterproof structure comprising two stacked waterproof partitions and a waterproof material layer disposed between the two waterproof partitions.

[0007] The prefabricated connection system for frame-supported skylights of the present invention includes a stainless steel waterproof partition and a TPO waterproof membrane as the waterproof material layer.

[0008] The frame-supported prefabricated connection system for skylights of the present invention includes a height adjustment component comprising a first fastening structure and a first adjustment member and a second adjustment member nested together; the first adjustment member is disposed at the second end of the intermediate connector, and the second adjustment member is disposed at the end of the keel facing the intermediate connector; the first fastening structure is configured to limit the relative position of the first adjustment member and the second adjustment member. Wherein, the first adjusting member is configured to be fitted onto the second adjusting member, or the second adjusting member is configured to be fitted onto the first adjusting member.

[0009] The prefabricated connection system for frame-supported skylights of the present invention includes a first adjusting member being a corbel base and a second adjusting member being a keel base, wherein the corbel base is configured to be fitted onto the keel base; The cow leg base is provided with a plurality of first positioning waist holes extending along the height direction, and the keel base is provided with a plurality of first insertion holes corresponding to the first positioning waist holes. The first fastening structure is a first fastening bolt corresponding to the first positioning waist hole and the first insertion hole.

[0010] The prefabricated connection system for frame-supported skylights of the present invention has a first weld-free bolt serration on the outer wall of the bracket base corresponding to the first positioning waist hole and the first fastening bolt.

[0011] The prefabricated connection system for frame-supported skylights of the present invention has an integrated screw at the first end of the intermediate connector and a threaded hole corresponding to the integrated screw on the support base.

[0012] The prefabricated connection system for frame-supported skylights of the present invention includes a horizontal adjustment component comprising a plurality of second positioning waist holes extending laterally on the horizontal keel overlapping base, and second fastening bolts corresponding one-to-one with the second positioning waist holes.

[0013] The prefabricated connection system for frame-supported skylights of the present invention has a second weld-free bolt serration on the outer wall of the transverse keel overlapping base, corresponding to the second positioning waist hole and the second fastening bolt.

[0014] A construction method of the present invention is used to assemble a prefabricated connection system for a frame-supported skylight as described in any one of the above claims, wherein the keel is provided with a transverse keel overlapping base and a second fastening structure. Includes the following steps: Step S1: During the main structure construction phase, fix the support base to the external building main steel structure; Step S2: In the external assembly stage, connect the first end of the intermediate connector to the support base, and clamp the annular waterproof structure between the intermediate connector and the support base; Step S3: Hoist the pre-installed unit skylight frame into place. The unit skylight frame includes the keel and the height adjustment component. Step S4: Connect the keel to the second end of the intermediate connector through the height adjustment component, and adjust and fix the height of the keel through the height adjustment component; Step S5: Connect the keel of the adjacent frame-supported skylight assembly connection system to the horizontal keel overlap base, adjust the horizontal position, and lock and fix it by the second fastening structure.

[0015] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art: One embodiment of the present invention breaks down the original corbel structure into unit forms such as a support base, intermediate connectors, keel, and horizontal keel overlapping base. This allows for factory fabrication and welding, followed by hoisting installation during construction, achieving prefabricated installation, improving work efficiency, and reducing labor costs and construction time. Furthermore, the height adjustment component allows for precise adjustment of the height of each corbel according to different shape requirements, accurately controlling the tilt angle at different positions of the skylight to meet various complex shape needs. Especially for curved skylights, it enables precise dimensional control, preventing shape deviations. Additionally, this embodiment, by cutting the middle section of the corbel and using an annular waterproof structure between the intermediate connector and the support base, not only meets the prefabricated construction requirements of the skylight but also achieves efficient waterproofing and seepage prevention on the circular pipe.

[0016] In one embodiment of the present invention, the design of the horizontal keel overlapping base and the horizontal adjustment component enables precise docking and connection of adjacent keel units, further improving assembly efficiency and accuracy. Attached Figure Description

[0017] Figure 1 This is an exploded view of the prefabricated connection system for a frame-supported skylight according to Embodiment 1 of the present invention; Figure 2 This is a cross-sectional view of the prefabricated connection system for a frame-supported skylight according to Embodiment 1 of the present invention; Figure 3 This is an overall schematic diagram of the prefabricated connection system for a frame-supported skylight according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of a frame-supported skylight using existing technology.

[0018] Explanation of reference numerals in the attached drawings: 1. Keel; 2. Second weld-free bolt serration; 3. Horizontal keel overlapping base; 4. Second fastening bolt; 5. Keel base; 6. Bracket base; 7. First weld-free bolt serration; 8. First fastening bolt; 9. Waterproof partition; 10. Waterproof material layer; 11. Intermediate connector; 12. Integrated screw; 13. Support base. Detailed Implementation

[0019] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a prefabricated connection system and construction method for a frame-supported skylight proposed in this invention. The advantages and features of this invention will become clearer from the following description and claims.

[0020] Example 1 See Figures 1 to 3 In one embodiment, a frame-supported skylight assembly connection system includes a support base 13, an intermediate connector 11, an annular waterproof structure, a keel 1, and a transverse keel overlapping base 3.

[0021] The support base 13 is fixed to the external building's main steel structure, serving as the fundamental support point for the entire connection system. This support can be achieved through welding or other methods, which are not limited here. The design of the support base 13 ensures that the entire skylight system can be stably installed on the building's main structure, bearing the load from the superstructure. The intermediate connector 11 is configured such that its first end is connected to the support base 13, and its second end is connected to the upper keel 1 via a height adjustment component. The height adjustment component adjusts and fixes the relative height between the keel 1 and the intermediate connector 11, allowing the entire skylight system to be adjusted in height according to actual needs, adapting to different architectural design requirements.

[0022] The annular waterproof structure is sandwiched between the intermediate connector 11 and the support base 13, and the annular waterproof component is configured such that its outer edge extends out of the upper end face of the support base 13.

[0023] Furthermore, the horizontal keel overlap base 3 is disposed on the keel 1. The horizontal keel overlap base 3 is configured to sleeve or nest the external keel unit, and the horizontal relative position between the horizontal keel overlap base 3 and the external keel unit is adjusted and fixed by the horizontal adjustment component.

[0024] This embodiment breaks down the original corbel structure into units such as the support base 13, intermediate connector 11, keel 1, and horizontal keel overlapping base 3. This allows for factory fabrication and welding, followed by hoisting installation during construction, achieving prefabricated installation, improving work efficiency, and reducing labor costs and construction time. Furthermore, the height adjustment component allows for precise adjustment of the height of each corbel according to different design requirements, accurately controlling the tilt angle at different positions of the skylight to meet various complex design needs. Especially for curved skylights, it enables precise dimensional control, preventing design deviations. Additionally, by cutting the middle section of the corbel and using a ring-shaped waterproof structure between the intermediate connector 11 and the support base 13, this embodiment not only meets the prefabricated construction requirements of the skylight but also achieves efficient waterproofing and seepage prevention on the circular pipe.

[0025] Furthermore, in one embodiment of the present invention, the design of the horizontal keel overlapping base 3 and the horizontal adjustment component enables precise docking and connection of adjacent keel units, further improving assembly efficiency and precision.

[0026] The specific structure of the prefabricated connection system for the frame-supported skylight in this embodiment will be further described below: In this embodiment, in order to achieve the assembly connection between the intermediate connector 11 and the support base 13, the first end of the intermediate connector 11 may be provided with an integrated screw 12, and the support base 13 is provided with a threaded hole corresponding to the integrated screw 12. The connection between the two is achieved by tightening the screw.

[0027] In this embodiment, the aforementioned annular waterproof structure includes two stacked waterproof partitions 9 and a waterproof material layer 10 disposed between the two waterproof partitions 9. Both the waterproof partitions 9 and the waterproof material layer 10 are sleeved on the aforementioned integrated screw 12 and clamped between the intermediate connector 11 and the support base 13.

[0028] Specifically, the waterproof partition 9 can be a stainless steel waterproof partition with a thickness of 2mm, and the waterproof material layer 10 can be a TPO waterproof membrane.

[0029] In a frame-supported skylight system, the main steel structure connecting bracket is a crucial node that penetrates the roof waterproofing layer and connects the main steel structure to the upper skylight system. Because this node needs to penetrate the roof, it naturally forms a potential channel for rainwater infiltration, making it one of the weakest links in the skylight waterproofing system.

[0030] In existing technologies, some solutions employ a method of mounting a straight-plate onto the corbel and welding it completely to the contact surface to achieve waterproofing. However, this welding sealing method is prone to fatigue cracking of the weld seam under long-term temperature changes and structural deformation. Once the seal fails, rainwater can seep downwards along the corbel, and the on-site welding quality is difficult to guarantee, making repairs challenging. Furthermore, many existing skylight solutions achieve waterproofing through sealant between panels, but in actual projects, skylights commonly suffer from the problem of "nine out of ten skylights leaking." A single sealant layer lacks secondary drainage function; when the sealant ages or the construction quality is poor, rainwater seeps into the room through the sealant seams. Skylight leaks are largely caused by unreasonable structural joints, which are "inherent and almost impossible to repair."

[0031] To address the problems of the existing technology, this embodiment incorporates a ring-shaped waterproof structure on the integrated screw section between the support base and the intermediate connector 11. When rainwater seeps downwards along the integrated screw 12, it inevitably passes through the multi-layered sandwich structure composed of waterproof partition 9, TPO waterproof membrane, and waterproof partition 9, thereby establishing a physical barrier in the leakage channel.

[0032] Furthermore, this embodiment employs a stainless steel waterproof partition, providing structural support and the first rigid sealing interface. Its function is to withstand the clamping force during assembly, forming a stable sealing base surface, while also possessing excellent corrosion resistance and durability. TPO waterproof membrane is a thermoplastic polyolefin waterproof material, combining the weather resistance of ethylene propylene rubber with the weldability of polypropylene. It boasts an impact resistance of 0.5 kg·m without water leakage, high tensile strength, and resistance to acid, alkali, and salt corrosion. Under the clamping of two rigid waterproof partitions 9, the TPO membrane undergoes compression deformation, fully filling the tiny gaps between the waterproof partitions 9 and the screw, forming a dense, flexible sealing layer. The composite of the TPO waterproof membrane and the waterproof partitions 9 combines the flexibility and waterproofness of TPO with the strength and durability of the waterproof partitions 9, providing more reliable waterproof protection in various extreme environments.

[0033] Furthermore, the two waterproof partitions 9 are pressed together by the assembly force at the top of the integrated screw 12, compressing the TPO waterproof membrane sandwiched in between to form a "multi-layer clamping" sealing structure. This compression sealing method has the following advantages compared to welding or simple adhesive sealing: ① The sealing force can be precisely controlled by the tightening torque of the screw; ② It is a detachable connection, which is convenient for later maintenance and replacement; ③ It is not affected by the on-site welding quality and environmental conditions, and the quality is reliable and controllable.

[0034] In this embodiment, the height adjustment assembly includes a first fastening structure and a first adjusting member and a second adjusting member that are nested together. The first adjusting member is disposed at the second end of the intermediate connecting member 11, and the second adjusting member is disposed at the end of the keel 1 facing the intermediate connecting member 11. The first fastening structure is configured to limit the relative position of the first adjusting member and the second adjusting member. The first adjusting member is configured to be nested onto the second adjusting member, or the second adjusting member is configured to be nested onto the first adjusting member.

[0035] In this height adjustment assembly, the first adjusting component is a bracket base 6, and the second adjusting component is a keel base 5. The bracket base 6 is configured to fit onto the keel base 5. The bracket base 6 has several first positioning slots extending along the height direction, and the keel base 5 has several first insertion holes corresponding to the first positioning slots. The first fastening structure is a first fastening bolt 8 corresponding to the first positioning slots and the first insertion holes. By adjusting the position of the first fastening bolt 8 in the first positioning slots, the height of the keel 1 can be precisely controlled. The outer wall of the bracket base 6 has first weld-free bolt serrations 7 corresponding to the first positioning slots and the first fastening bolts 8. This design enhances the stability and strength of the connection, achieving a reliable connection without welding.

[0036] In this embodiment, the horizontal keel overlapping base 3 is disposed on the keel 1 and configured to sleeve or nest the external keel unit. The horizontal relative position between the horizontal keel overlapping base 3 and the external keel unit is adjusted and fixed by a horizontal adjustment component. The horizontal adjustment component includes a plurality of second positioning waist holes extending horizontally on the horizontal keel overlapping base 3, and second fastening bolts 4 corresponding to the second positioning waist holes one by one. The outer side wall of the horizontal keel overlapping base 3 is provided with second weld-free bolt serrations 2 corresponding to the second positioning waist holes and the second fastening bolts 4. This design allows the position of the horizontal keel to be finely adjusted in the horizontal direction, ensuring the precise installation and alignment of the entire skylight system.

[0037] In the two adjustment components mentioned above, the first weld-free bolt sawtooth 7 and the second weld-free bolt sawtooth 2, through their geometric engagement with the corresponding fastening bolts, upgrade the shear resistance logic from "friction type" to "pressure-bearing engagement type," greatly improving the stability of the node under dynamic loads. This avoids the slippage risk that exists in traditional elongated hole friction connections in existing curtain wall nodes under long-term wind vibration.

[0038] During installation, the support base 13 is first fixed to the main steel structure during the main construction phase. Then, during the external assembly phase, the integrated screw 12 of the intermediate connector 11 is connected to the support base 13 via threads, while a ring-shaped waterproof structure is placed. Next, the keel base 5 is connected to the height-adjustable bracket base 6 via a plug-in connection. The height of the keel 1 is adjusted using the first fastening bolt 8 to meet different curved surface requirements. Finally, the other side keel 1 is hoisted and overlapped above the transverse keel overlapping base 3. The length position is adjusted using the adjustable base, and then the two skylight keel units are reliably connected using the second fastening screw.

[0039] This prefabricated frame-supported skylight connection system achieves precise vertical and horizontal adjustment of the skylight through the design of height and lateral adjustment components, meeting the precision requirements of skylight installation for different building forms. Meanwhile, the ring-shaped waterproof structure ensures the system's waterproof performance, and the application of weld-free bolts with serrated edges improves installation efficiency and connection reliability.

[0040] Example 2 This embodiment provides a construction method for assembling the prefabricated connection system of the frame-supported skylight in Embodiment 1 above, including the following steps: Step S1: During the main structure construction phase, the support base 13 is fixed to the external building main steel structure. In this phase, the support base 13, as the basic support point of the entire connection system, is firmly fixed to the building main steel structure, providing a stable foundation for subsequent installation.

[0041] Step S2: In the external assembly stage, the first end of the intermediate connector 11 is connected to the support base 13, and the annular waterproof structure is clamped between the intermediate connector 11 and the support base 13. The intermediate connector 11 is connected to the threaded hole on the support base 13 through the integrated screw 12 at its first end, and the annular waterproof structure is clamped between the two, with its outer edge extending out of the upper end face of the support base 13, forming an effective waterproof barrier.

[0042] Step S3: Hoist the pre-assembled unit skylight frame into place. The unit skylight frame includes the keel 1 and the height adjustment assembly. This step involves hoisting the pre-assembled skylight unit into place as a whole, preparing for subsequent precise adjustments.

[0043] Step S4: Connect the keel 1 to the second end of the intermediate connector 11 via the height adjustment assembly, and adjust and fix the height of the keel 1 using the height adjustment assembly. In this step, the keel base 5 is connected to the height-adjustable bracket base 6 via a plug-in connection, and then the height of the keel 1 is adjusted using the first fastening bolt 8 to adapt to different curved surface requirements.

[0044] Step S5: Overlap the adjacent frame-supported prefabricated skylight connection system keel 1 onto the horizontal keel overlapping base 3, adjust the horizontal position, and lock and fix it through the second fastening structure. In this step, the other side keel 1 is overlapped above the horizontal keel overlapping base 3 by hoisting, the length position is adjusted by the adjustable base, and then the two skylight keel units are reliably connected by the second fastening structure.

[0045] This construction method achieves precise positioning and installation of the skylight system through a step-by-step installation process. Precise vertical adjustment is possible via the height adjustment components, while precise horizontal adjustment is possible via the horizontal keel overlapping base 3 and the second fastening structure, meeting the precision requirements of skylight installation for different building types. Simultaneously, the ring-shaped waterproof structure design ensures the system's waterproof performance, and the application of the first weld-free bolt sawtooth 7 and the second weld-free bolt sawtooth 2 improves installation efficiency and connection reliability.

[0046] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A prefabricated connection system for frame-supported skylights, characterized in that, include: Support base, fixed to the external building's main steel structure; An intermediate connector, the first end of which is connected to the support base; A ring-shaped waterproof structure is sandwiched between the intermediate connector and the support base, and the ring-shaped waterproof component is configured such that its outer edge extends out of the upper end face of the support base; The keel is connected to the second end of the intermediate connector via a height adjustment component; wherein the height adjustment component is configured to adjust and fix the relative height between the keel and the intermediate connector; A transverse keel overlap base is disposed on the keel. The transverse keel overlap base is configured to sleeve or nest an outer keel unit, and the transverse relative position between the transverse keel overlap base and the outer keel unit is adjusted and fixed by a transverse adjustment component.

2. The prefabricated connection system for frame-supported skylights as described in claim 1, characterized in that, The ring-shaped waterproof structure includes two stacked waterproof partitions and a waterproof material layer disposed between the two waterproof partitions.

3. The prefabricated connection system for frame-supported skylights as described in claim 1, characterized in that, The waterproof partition is a stainless steel waterproof partition, and the waterproof material layer is a TPO waterproof membrane.

4. The prefabricated connection system for frame-supported skylights as described in claim 1, characterized in that, The height adjustment assembly includes a first fastening structure and a first adjustment member and a second adjustment member that are nested together; the first adjustment member is disposed at the second end of the intermediate connector, and the second adjustment member is disposed at the end of the keel facing the intermediate connector; the first fastening structure is configured to limit the relative position of the first adjustment member and the second adjustment member. Wherein, the first adjusting member is configured to be fitted onto the second adjusting member, or the second adjusting member is configured to be fitted onto the first adjusting member.

5. The prefabricated connection system for frame-supported skylights as described in claim 4, characterized in that, The first adjusting component is a cow-leg base, and the second adjusting component is a keel base, wherein the cow-leg base is configured to be fitted onto the keel base; The cow leg base is provided with a plurality of first positioning waist holes extending along the height direction, and the keel base is provided with a plurality of first insertion holes corresponding to the first positioning waist holes. The first fastening structure is a first fastening bolt corresponding to the first positioning waist hole and the first insertion hole.

6. The prefabricated connection system for frame-supported skylights as described in claim 5, characterized in that, The outer wall of the bracket base is provided with a first weld-free bolt serration corresponding to the first positioning waist hole and the first fastening bolt.

7. The prefabricated connection system for frame-supported skylights as described in claim 1, characterized in that, The first end of the intermediate connector is provided with an integrated screw, and the support base is provided with a threaded hole corresponding to the integrated screw.

8. The prefabricated connection system for frame-supported skylights as described in claim 1, characterized in that, The lateral adjustment assembly includes a plurality of second positioning waist holes extending laterally on the lateral keel overlapping base, and second fastening bolts corresponding one-to-one with the second positioning waist holes.

9. The prefabricated connection system for frame-supported skylights as described in claim 8, characterized in that, The outer wall of the transverse keel lap base is provided with a second weld-free bolt serration corresponding to the second positioning waist hole and the second fastening bolt.

10. A construction method, characterized in that, For assembling the prefabricated connection system of the frame-supported skylight as described in any one of claims 1 to 9, wherein the keel is provided with a transverse keel overlapping base and a second fastening structure. Includes the following steps: Step S1: During the main structure construction phase, fix the support base to the external building main steel structure; Step S2: In the external assembly stage, connect the first end of the intermediate connector to the support base, and clamp the annular waterproof structure between the intermediate connector and the support base; Step S3: Hoist the pre-installed unit skylight frame into place. The unit skylight frame includes the keel and the height adjustment component. Step S4: Connect the keel to the second end of the intermediate connector through the height adjustment component, and adjust and fix the height of the keel through the height adjustment component; Step S5: Connect the keel of the adjacent frame-supported skylight assembly connection system to the horizontal keel overlap base, adjust the horizontal position, and lock and fix it by the second fastening structure.

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