Indoor skiing hall cold storage board deformation joint structure and construction method thereof
By using a dual insulation design of thermal insulation cotton and water-repellent rock wool at the expansion joints of the cold storage panels in the indoor ski resort, and by setting up a condensate drainage device, the problems of poor insulation effect and condensate infiltration in traditional construction are solved, achieving good insulation performance and structural adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN CONSTRUCTION ENGINEERING GROUP CO LTD
- Filing Date
- 2023-12-05
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional indoor ski resort cold storage panels have poor insulation at expansion joints, which easily leads to condensation seeping in, causing structural damage and reduced insulation, resulting in high maintenance costs.
The system employs a dual insulation design combining thermal insulation cotton and water-repellent rock wool, and is equipped with a condensate drainage device. It utilizes spherical connectors and connecting plates to adapt to structural deformation, and combines self-adhesive asphalt waterproof membrane and vapor barrier to prevent cold bridging and water vapor intrusion.
It achieves good thermal insulation effect, reduces cold bridge effect, extends the durability of thermal insulation material, reduces maintenance costs, adapts to structural deformation requirements, and is suitable for the construction of expansion joints in wall panels and ceilings.
Smart Images
Figure CN117488979B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of building construction, and in particular to a construction method for expansion joints in cold storage panels for indoor ski resorts, which is especially applicable to the construction of expansion joints in wall panels and ceilings. Background Technology
[0002] As living standards improve, people's pursuit of recreational activities is also constantly increasing, and winter sports have become increasingly popular in recent years. Natural outdoor ski resorts, limited by their geographical climate, can only be built in cold northern regions, while artificial outdoor ski resorts generally only operate for about 2-3 months in winter. With the growing enthusiasm for winter sports, both natural and artificial outdoor ski resorts can no longer meet the needs of a large number of enthusiasts. Therefore, large-scale indoor ski resorts are gradually being built in urban commercial complexes, cultural and tourism cities, and independent venues with huge consumption potential.
[0003] The thermal insulation system of the entire venue is an important part of the construction of indoor ski resorts. In order to provide consumers with a better ice and snow sports experience, the design length of the ski slopes in the venue is generally long, reaching hundreds of meters. Therefore, indoor ski resorts are generally buildings with extra-long floor plan dimensions. Structural expansion joints are usually set to disconnect the structure of the extra-long building to avoid structural damage or impact on the building's functionality due to temperature stress, uneven foundation settlement, etc. Other building structures at the expansion joint, including cold storage panels, also need to adapt to the displacement and deformation on both sides, while ensuring the functionality of the disconnected building structure.
[0004] Traditional construction methods involve injecting polyurethane foam into the expansion joints. However, over time, tiny cracks appear at these joints, and the insulation effect weakens. The exchange of hot and cold air causes condensation to seep into the cold storage panels, exacerbating damage and reducing energy-saving insulation. Therefore, designing a construction method for the expansion joints of indoor ski resort cold storage panels that meets these requirements is a pressing issue. Summary of the Invention
[0005] Based on the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a construction method for expansion joints of cold storage panels in indoor ski resorts, which is easy to construct, can adapt to the needs of structural deformation, has good thermal insulation effect, avoids cold bridges, and reduces later maintenance costs.
[0006] To achieve the above objectives, the present invention employs the following technical measures:
[0007] The present invention relates to an expansion joint structure for cold storage panels in an indoor ski resort. The expansion joint is filled with insulation cotton between the cold storage panels on both sides. A first edge-sealing plate connects the cold storage panels on both sides of the expansion joint above the insulation cotton. A water-repellent rock wool layer, laid along the entire length of the expansion joint and positioned above it, is placed on top of the first edge-sealing plate. The water-repellent rock wool is located on the outer side of the ski resort. The outer perimeter of the water-repellent rock wool is fully covered with self-adhesive asphalt waterproof membrane. A second edge-sealing plate, which wraps and fixes the water-repellent rock wool to the cold storage panels on both sides of the expansion joint, is placed above the water-repellent rock wool. A vapor barrier membrane is laid on top of the second edge-sealing plate. The insulation cotton… Below, there is a bellows panel that connects to the cold storage panels on both sides of the expansion joint. Galvanized corner fittings are installed on the lower external corners of the cold storage panels on both sides of the expansion joint. The two ends of the bellows panel are respectively connected and fixed to two galvanized corner fittings. Spherical connectors are fixed on the galvanized corner fittings and are symmetrically arranged on both sides of the expansion joint. The spherical connectors have cavities with their openings facing parallel to the bottom surface of the cold storage panels. A connecting plate is snapped between the cavities of the two spherical connectors. A condensate drainage device is provided below the connecting plate to drain the collected condensate into the ski resort's drainage system. The condensate drainage device is located inside the ski resort.
[0008] Preferably, the first edge trimming plate is folded in the middle part of the expansion joint, and the first edge trimming plate is connected to the top surface of the cold storage panel by flat-head nails. The connection point of the flat-head nails is fully covered with butyl tape to prevent moisture from seeping into the cold storage panel.
[0009] Furthermore, the second edge trimming plate surrounds the outer periphery of the water-repellent rock wool and presses and fixes the water-repellent rock wool to the cold storage panels on both sides of the expansion joint. The second edge trimming plate has expansion and contraction allowance at the expansion joint. The two sides of the second edge trimming plate are nailed into the top surface of the cold storage panels on both sides of the expansion joint with flat-head nails for fixation. Butyl tape is fully applied to the nail holes.
[0010] Furthermore, the condensate drainage device includes a decorative cover plate with a built-in water collection function located below the connecting plate. Waterproof sealant is applied to the lower part of the joint of each decorative cover plate along the longitudinal direction of the expansion joint. The joints of the decorative cover plates are staggered from the joints of the cold storage panels. A water collection trough with a built-in drainage function is provided on the lower side of the decorative cover plate, and a drain pipe is provided on the lower side of the decorative cover plate for discharging the collected condensate into the drainage system inside the ski resort.
[0011] Preferably, the self-adhesive bitumen waterproof membrane includes a first layer of self-adhesive bitumen waterproof membrane located between the bottom surface of the water-repellent rock wool and the top of the first edge-sealing board, and a second layer of self-adhesive bitumen waterproof membrane laid on the side and top surfaces of the water-repellent rock wool. The first layer of self-adhesive bitumen waterproof membrane has overlap lengths at both ends and is folded and laid in the middle area of the expansion joint to allow for expansion and contraction. The second layer of self-adhesive bitumen waterproof membrane has expansion and contraction allowances in the middle area of the expansion joint and overlaps with the first layer of self-adhesive bitumen waterproof membrane to fully cover the water-repellent rock wool.
[0012] Furthermore, the accordion plate is serrated, and the condensate generated directly above the accordion plate is blocked by the serrated central groove portion when it passes through the accordion plate.
[0013] Preferably, the two ends of the connecting plate are spherical, which can be smoothly pushed into the cavity of the spherical connector, and the spheres at both ends of the connecting plate are movably connected to the cavity of the spherical connector.
[0014] Furthermore, the vapor barrier membrane includes a first vapor barrier membrane and a second vapor barrier membrane. The first vapor barrier membrane and the second vapor barrier membrane have expansion allowance at the expansion joint, and their sides are fixed to the cold storage panel with self-tapping screws.
[0015] Accordingly, the present invention also provides a construction method for the expansion joint structure of cold storage panels in indoor ski resorts, the steps of which are as follows:
[0016] S1. Positioning and layout: First, construct the cold storage panels on both sides of the expansion joint and fix the cold storage panels firmly.
[0017] S2. After the cold storage panels on both sides of the expansion joint are fixed, use flat-head nails to fix the galvanized corner pieces at the lower external corners of the cold storage panels. At the same time as fixing the galvanized corner pieces, press the bellows board under the flat-head nails to fix it.
[0018] S3. Fit the protruding part of the ball connector tightly with the two legs of the galvanized corner piece and secure it firmly with self-tapping screws;
[0019] S4. Install the connecting plate, and push the spheres at both ends of the connecting plate into the cavity of the spherical connector; the connecting plate and the cold storage panel have the same length along the longitudinal direction of the expansion joint.
[0020] S5. Install the decorative cover plate and nail it to the connecting plate with flathead nails. Place the water collection trough side of the decorative cover plate at a lower position and stagger the joints of the decorative cover plate from the joints of the cold storage plate.
[0021] S6. Apply waterproof sealant to the joints of each decorative cover panel along the longitudinal direction.
[0022] S7. Fill the middle of the expansion joint between the cold storage panels with thermal insulation cotton and seal it tightly;
[0023] S8. The first edge trim is installed on the top surface of the cold storage panels on both sides of the expansion joint. The first edge trim is connected to the cold storage panel with flat-head nails. Butyl tape is fully applied where the flat-head nails are inserted.
[0024] S9. Lay the first layer of self-adhesive asphalt waterproof membrane on top of the first edge trim, leaving an overlap length at both ends. Fold the membrane in the middle of the expansion joint, leaving room for expansion.
[0025] S10. Lay water-repellent rock wool on the first layer of self-adhesive bitumen waterproof membrane;
[0026] S11. A second layer of self-adhesive bitumen waterproof membrane is laid on top of the water-repellent rock wool. Similarly, expansion allowance is left in the middle area of the expansion joint. It overlaps with the first layer of self-adhesive bitumen waterproof membrane below the water-repellent rock wool, and the water-repellent rock wool is fully wrapped.
[0027] S12. Install the second edge trimming plate. The second edge trimming plate is pressed and compacted with the water-repellent rock wool. Its two sides are attached to the top surface of the cold storage panel and connected with flat-head nails. Butyl tape is fully applied to the places where it contacts the flat-head nails.
[0028] S13. Lay the first and second vapor barrier membranes to prevent external moisture from entering the expansion joint. Both vapor barrier membranes have expansion allowance in the middle area of the expansion joint, and their sides are fixed to the cold storage panel with self-tapping screws.
[0029] Based on the above, the beneficial effects of the expansion joint structure and construction method of the indoor ski resort cold storage panel of the present invention are as follows:
[0030] 1. By using double insulation of filling with thermal insulation cotton and covering with water-repellent rock wool at the expansion joint, the same effect as cold storage panels can be achieved, reducing or even avoiding the thermal bridging effect at the expansion joint.
[0031] 2. Integrated prevention and drainage: It is equipped with a condensate drainage device. As the usage time increases, the insulation material at the expansion joint may age and reduce the insulation effect. This invention takes this into account in advance and designs a condensate collection tank to divert the condensate to the drainage system inside the ski area, ensuring the durability of the cold storage panel insulation.
[0032] 3. The cold storage panels are completely separated at the expansion joints, with the same width as the structural joints. The insulation, waterproofing, and decorative materials at the expansion joints are all designed with expansion and contraction allowances so that they can deform together with the structural expansion and contraction. This prevents the structural deformation from tearing the outer covering material at the expansion joints, thereby reducing functionality and usability.
[0033] 4. The expansion joint structure of the cold storage panel of the present invention is applicable to both vertical wall panels and inclined ceilings, with a wide range of applications and easy corner finishing.
[0034] 5. The construction method of the cold storage panel expansion joint structure of the present invention has simple steps, is easy to learn, allows for multiple points to be operated at the same time, and the sealing of the upper and lower sides of the expansion joint can also be carried out at the same time, thus shortening the construction period. Attached Figure Description
[0035] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0036] Figure 1 This is a cross-sectional schematic diagram of the expansion joint structure of the indoor ski resort cold storage panel roof according to the present invention.
[0037] Figure 2 This is a cross-sectional schematic diagram of the expansion joint structure of the indoor ski resort cold storage panel wall panel of the present invention.
[0038] Figure 3 This is a detailed schematic diagram of the expansion joint structure of the cold storage panel in the indoor ski resort of the present invention on the outside of the ski resort.
[0039] Figure 4 This is a detailed schematic diagram of the expansion joint structure of the indoor ski resort cold storage panel roof of the present invention on the inner side of the ski resort.
[0040] Figure 5 This is a detailed schematic diagram of the connection between the connecting plate and the spherical connector in the expansion joint structure of the indoor ski resort cold storage panel of the present invention.
[0041] Among them: 1-first layer vapor barrier membrane, 2-second layer vapor barrier membrane, 3-second edge trimming board, 4-second layer self-adhesive bitumen waterproof membrane, 5-water-repellent rock wool, 6-first layer self-adhesive bitumen waterproof membrane, 7-first edge trimming board, 8-flat head nail, 9-butyl tape, 10-adhesive, 11-insulation cotton, 12-gusset plate, 13-cold storage panel, 14-decorative cover plate, 15-galvanized corner fitting, 16-self-tapping screw, 17-spherical connector, 18-connecting plate, 19-downpipe. Detailed Implementation
[0042] Below, in conjunction with Figures 1 to 5 This invention provides a detailed description of the expansion joint structure and construction method of the indoor ski resort cold storage panel.
[0043] like Figure 1-5As shown, the expansion joint structure of the indoor ski resort cold storage panel of the present invention includes cold storage panels 13 located on both sides of the expansion joint. The middle of the cold storage panels 13 on both sides of the expansion joint is filled with thermal insulation cotton 11. The upper part of the thermal insulation cotton 11 is provided with a first edge plate 7 that connects the cold storage panels on both sides of the expansion joint. The middle part of the first edge plate 7 on the upper side of the expansion joint is folded and can change with the expansion and contraction of the structure. The first edge plate 7 is connected to the top surface of the cold storage panel 13 by a flat-head nail 8. The connection point of the flat-head nail 8 is fully covered with butyl tape 9 to prevent moisture from seeping into the cold storage panel 13 and reducing its thermal insulation effect. The upper part of the first edge panel 7 is covered with 200mm thick water-repellent rock wool 5. The water-repellent rock wool 5 (located on the outside of the ski area) is laid along the entire length of the expansion joint and is located above the expansion joint. The outer perimeter of the water-repellent rock wool 5 is fully covered with self-adhesive bitumen waterproof membrane. The self-adhesive bitumen waterproof membrane includes a first layer of self-adhesive bitumen waterproof membrane 6 located between the bottom surface of the water-repellent rock wool 5 and the top of the first edge panel 7, and a second layer of self-adhesive bitumen waterproof membrane 4 laid on the side and top surfaces of the water-repellent rock wool 5. The two ends of the first layer of self-adhesive bitumen waterproof membrane 6 are left with an overlap length, and it is folded and laid in the middle area of the expansion joint to leave a shrinkage allowance. The second layer of self-adhesive bitumen waterproof membrane 4 leaves a shrinkage allowance in the middle area of the expansion joint and overlaps with the first layer of self-adhesive bitumen waterproof membrane 6 to fully cover the water-repellent rock wool 5. Self-adhesive bitumen waterproof membrane is used to prevent water droplets condensed from the hot air above the ceiling from penetrating the water-repellent rock wool 5. The self-adhesive bitumen waterproof membrane has expansion and contraction allowance in the expansion joint area to prevent the membrane from cracking when the structure expands and contracts.
[0044] Above the water-repellent rock wool 5, a second edge trimming plate 3 is provided, which wraps around and fixes the water-repellent rock wool 5 to the cold storage panels 13 on both sides of the expansion joint. The second edge trimming plate 3 surrounds the outer periphery of the water-repellent rock wool 5 and presses and compacts the water-repellent rock wool 5 to fix it to the cold storage panels 13 on both sides of the expansion joint. The second edge trimming plate 3 has a contraction allowance at the expansion joint. The two sides of the second edge trimming plate 3 are fixed by nailing flat-head nails 8 into the top surface of the cold storage panels 13 on both sides of the expansion joint, and the nail holes are fully coated with butyl tape 9. A second vapor barrier membrane 2 is laid on top of the second edge trimming plate 3. A reinforced first vapor barrier membrane 1 (aluminum foil vapor barrier membrane) is also provided on top of the second vapor barrier membrane 2. The first vapor barrier membrane 1 and the second vapor barrier membrane 2 have a contraction allowance at the expansion joint. Their sides are fixed by nailing self-tapping screws 8 into the cold storage panels 13, and the ends are glued with adhesive 10.
[0045] Below the insulation cotton 11 filling the space between the two cold storage panels 13, there is a self-waterproof gusset plate 12 that connects to the cold storage panels 13 on both sides of the expansion joint. The gusset plate 12 is serrated, and condensation generated directly above the gusset plate 12 is blocked by the serrated central groove when it passes through the gusset plate 12. The serrated shape of the gusset plate 12 also allows it to change with the expansion and contraction of the structure without breaking. Galvanized corner fittings 15 are provided on the lower external corners of the cold storage panels on both sides of the expansion joint, and the two ends of the gusset plate 12 are respectively connected and fixed to two galvanized corner fittings 15. These galvanized corner fittings 15 are connected to the cold storage panels 13 by flathead nails 8.
[0046] Additionally, a spherical connector 17 is fixed to the galvanized corner fitting 15, with two spherical connectors 17 symmetrically arranged on both sides of the expansion joint. Each spherical connector 17 has a cavity with its opening parallel to the bottom surface of the cold storage panel 13. A metal connecting plate 18 is engaged between the cavities of the two spherical connectors 17, with the cavity in the middle of the spherical connector 17 precisely holding one end of the connecting plate 18. The two ends of the connecting plate 18 are spherical, allowing it to smoothly slide into the cavities of the spherical connectors 17. The spherical ends of the connecting plate 18 are movably connected within the cavities of the spherical connectors 17. The spherical ends of the connecting plate 18 have room to move within the cavities of the spherical connectors 17, accommodating the expansion and contraction deformation at the expansion joint.
[0047] A condensate drainage device is provided below the connecting plate 18 to discharge the collected condensate into the ski resort's drainage system. This device is located inside the ski resort. The condensate drainage device includes a decorative cover plate 14 with a built-in water collection function located below the connecting plate 18. Waterproof sealant is applied to the lower part of the joint of each decorative cover plate 14 along the longitudinal direction of the expansion joint. The joints of the decorative cover plates 14 are staggered from the joints of the cold storage panels. A water collection trough with a drainage function is provided on the lower side of the decorative cover plate 14. A downpipe 19 (PVC drain pipe) is provided on the lower side of the decorative cover plate 14 (at both ends of the expansion joint) to discharge the collected condensate into the ski resort's internal drainage system. The cold storage panels 13 on both sides of the expansion joint are discontinuous along the line, and the entire expansion joint is the weakest connection surface. As the usage time increases, the insulation effect inevitably weakens here, and a small amount of condensation is generated by the exchange of hot and cold air. The present invention adds a condensation drainage device below the connecting plate 18 at the expansion joint. The condensation at the ceiling expansion joint eventually flows into the inner drainage system of the ski resort through the downpipe 19; the condensation at the wall panel expansion joint flows directly into the drainage ditches on both sides of the ski resort through the groove (water collection trough) of the decorative cover plate 14.
[0048] A first edge trim 7 is installed on the outer surface of the cold storage panel 13 attached to the upper side of the expansion joint. The first edge trim 7 connects the cold storage panels on both sides of the expansion joint and serves as a support plate for the insulation layer above the expansion joint. This first edge trim 7 is folded in half at the middle of the expansion joint to allow for expansion and contraction, accommodating structural changes. On top of the first edge trim 7, a layer of water-repellent rock wool 5 wrapped with self-adhesive bitumen waterproof membrane is stacked. This water-repellent rock wool 5 is densely wrapped with water-repellent fiberglass cloth on all six sides. The waterproof membrane covering the water-repellent rock wool 5 is folded in half at the middle of the expansion joint to allow for expansion and contraction. A second edge trim 3 is used to press and compact the water-repellent rock wool 5. The two sides of the second edge trim 3 are fixed into the cold storage panel 13 with flat-head nails 8, and the nail holes are fully coated with butyl tape 9 to prevent moisture intrusion. This second edge trim 3 also has an expansion and contraction allowance at the middle of the expansion joint.
[0049] The vapor barrier of this invention primarily prevents water vapor from entering the expansion joint and thus reducing the insulation effect. Below the insulation cotton 11 filling the middle of the expansion joint is a waterproof gusset plate 12. The main material of the bent portion of this gusset plate 12 is nitrile rubber, which has high water resistance and wear resistance, and the perimeter is edged with stainless steel. Most of the condensate generated directly above the gusset plate 12 is blocked by the serrated central groove when it passes through the gusset plate 12. The gusset plate 12 has a flexibility allowance in the bending design of the expansion joint area. It is nailed into the cold storage panels 13 on both sides using flathead nails 8. Galvanized corner brackets 15 are also nailed into the cold storage panels 13 along with the gusset plate 12. The other leg of the galvanized corner bracket 15 is also fixed with flathead nails 8. Adjacent to the galvanized corner bracket 15 is a spherical connector 17. The two protruding ends of the spherical connector 17 are tightly attached to the two legs of the galvanized corner bracket 15 and securely fixed with self-tapping screws 16. The spherical connector 17 is an open spherical component with a uniform wall thickness and hollowed out. The inner diameter of the spherical connector 17 is slightly larger than the outer diameter of the spheres at the ends of the connecting plate 18, allowing the spheres at both ends of the connecting plate 18 to be smoothly pushed into the interior of the spherical connector 17. The connecting plate 18 has the same length dimension as the single piece of cold storage panel along the longitudinal direction of the expansion joint. The spherical connector 17 is a long strip component with the same length as the single connecting plate along the longitudinal direction of the expansion joint, so that the ends of both ends of the connecting plate 18 can be fully inserted into the cavity of the spherical connector 17. The spherical connector 17 is fixed to the cold storage panel 13 at fixed intervals along the longitudinal direction of the expansion joint using self-tapping screws 16. After the connecting plate 18 at the expansion joint is fully pushed into the cavities of the spherical connector 17 on both sides of the cold storage panel, thin plates are welded to the ends of the spherical connector 17 at both ends of the expansion joint to prevent the connecting plate 18 from sliding out of the cavity. The sphere at the end of the connecting plate 18 has room to move up, down, left, and right within the cavity of the spherical connector 17.
[0050] A decorative cover plate 14 with a water collection function is provided below the connecting plate 18. This decorative cover plate 14 covers the expansion joint and is screwed into the connecting plate 18. The decorative cover plate 14 is set along the slope direction of the cold storage plate 13. At the lower position, the cross-section of the cover plate changes to form a water absorption groove to drain condensate. The expansion joint is usually narrow, and both the decorative cover plate 14 and the connecting plate 18 are lightweight thin plates. The spherical connector 17 supporting the connecting plate 18 is fixedly connected to the cold storage plate 13 at a fixed distance in the longitudinal direction. Therefore, the lower side of the expansion joint of this structure has good stability. A downpipe 19 is provided near the outer walls at both ends of the expansion joint. This downpipe 19 discharges the collected condensate to the drainage ditches on the ground floor at both ends, and flows into the drainage system inside the ski resort. When constructing the expansion joint of the exterior wall panel, this downpipe is not required, and the water absorption groove is not required on one side of the decorative cover plate 14. Both sides of the decorative cover plate 14 are symmetrically folded inward. At this time, the shape of the decorative cover plate is similar to a water-stop steel plate. Condensate flows directly into the ground drainage ditch near the wall through the groove of the decorative cover plate 14.
[0051] The expansion joint structure of the cold storage panel in the indoor ski resort of the present invention solves the problems of poor insulation effect, easy formation of thermal bridges, and poor durability of the cold storage panel at the expansion joint between the wall and the ceiling of the indoor ski resort using traditional construction methods.
[0052] Accordingly, the present invention also provides a construction method for the expansion joint structure of an indoor ski resort as described above, the construction method comprising:
[0053] 1. Positioning and layout: First, construct the cold storage panels 13 on both sides of the expansion joint and fix the cold storage panels firmly.
[0054] 2. After the cold storage panels 13 on both sides of the expansion joint are fixed, use flat-head nails 8 to fix the galvanized corner pieces 15 at the lower external corner of the cold storage panels 13. At the same time as fixing the galvanized corner pieces 15, press the bellows panel 12 into the flat-head nails 8 for fixation.
[0055] 3. Fit the protruding part of the ball connector 17 tightly with the two limbs of the galvanized corner piece 15, and secure it firmly with self-tapping screws 16.
[0056] 4. Install the connecting plate 18, and push the spheres at both ends of the connecting plate 18 into the cavity of the spherical connector 17. The connecting plate 18 and the cold storage panel 13 have the same length along the longitudinal direction of the expansion joint.
[0057] 5. Install the decorative cover plate 14. Use flathead nails 8 to nail the decorative cover plate 14 to the connecting plate 18. Note that the direction of the decorative cover plate 14 should not be wrong. The water collection trough side of the decorative cover plate 14 should be placed at a lower position. The seam of the decorative cover plate 14 should be staggered from the seam of the cold storage plate 13.
[0058] 6. Apply waterproof sealant to the joints of each longitudinally arranged decorative cover plate 14.
[0059] 7. Fill the middle position of the expansion joint between the cold storage panels 13 with thermal insulation cotton 11 and seal it tightly.
[0060] 8. The first edge trim 7 is installed on the upper side of the expansion joint, attached to the top surface of the cold storage panels on both sides. The first edge trim 7 is connected to the cold storage panel 13 using flat-head nails 8. Butyl tape 9 is fully applied where the flat-head nails 8 penetrate.
[0061] 9. Lay the first layer of self-adhesive asphalt waterproof membrane 6 on top of the first edge trim 7, leaving an overlap length at both ends. Fold the membrane in the middle of the expansion joint and leave room for expansion.
[0062] 10. Lay a 200mm high layer of water-repellent rock wool 5 on the first layer of self-adhesive bitumen waterproof membrane 6. Each layer of rock wool is covered with dense water-repellent fiberglass cloth on all six sides. The density of the rock wool is 135kg / m³. 3 The thickness of a single rock wool block is about 50mm. The thickness of this water-repellent rock wool 5 is 150-200mm. Usually, there are 3-4 layers of rock wool. When laying the upper layer of rock wool, the joints between the upper layer and the lower layer of rock wool are staggered to ensure the insulation effect.
[0063] 11. A second layer of self-adhesive bitumen waterproof membrane 4 is laid on top of the above-mentioned water-repellent rock wool 5. Similarly, a margin for expansion is left in the middle area of the expansion joint. It overlaps with the first layer of self-adhesive bitumen waterproof membrane 6 below the water-repellent rock wool, and fully wraps the water-repellent rock wool 5.
[0064] 12. Install the second edge trim 3. Press and compact the above-mentioned water-repellent rock wool 5 with the second edge trim 3. Its two sides are attached to the top surface of the cold storage panel 13 and connected with flat-head nails 8. The places where it contacts the flat-head nails are fully covered with butyl tape 9.
[0065] 13. Lay the first layer of vapor barrier 1 and the second layer of vapor barrier 2 to prevent external moisture from entering the expansion joint. Both layers of vapor barrier have expansion allowance in the middle area of the expansion joint, and are fixed on both sides with self-tapping screws 8 into the cold storage panel 13.
[0066] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any transformations or substitutions that can be understood by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of the present invention.
Claims
1. A structure for an expansion joint in a cold storage panel of an indoor ski resort, wherein the cold storage panels on both sides of the expansion joint are fully filled with insulation cotton, characterized in that, The upper part of the insulation cotton is provided with a first edge-sealing plate that connects the cold storage panels on both sides of the expansion joint. The upper part of the first edge-sealing plate is covered with water-repellent rock wool that is laid along the entire length of the expansion joint and located above the expansion joint. The water-repellent rock wool is located outside the ski area. The outer perimeter of the water-repellent rock wool is fully covered with self-adhesive asphalt waterproof membrane. A second edge-sealing plate is provided above the water-repellent rock wool to wrap and fix it to the cold storage plate on both sides of the expansion joint. A vapor barrier membrane is laid on top of the second edge-sealing plate. Below the insulation cotton is a bellows board that connects to the cold storage panels on both sides of the expansion joint. Galvanized corner fittings are installed on the lower external corners of the cold storage panels on both sides of the expansion joint. The two ends of the bellows board are respectively connected and fixed to two galvanized corner fittings. The galvanized corner fitting is fixed with spherical connectors symmetrically arranged on both sides of the expansion joint. The spherical connectors have cavities with their openings facing parallel to the bottom surface of the cold storage panel. A connecting plate is snapped between the cavities of the two spherical connectors. A condensate drainage device is provided below the connecting plate to drain the collected condensate into the drainage system of the ski resort. The condensate drainage device is located inside the ski resort. The first edge trim is folded in the middle part of the expansion joint. The first edge trim is connected to the top surface of the cold storage panel by flat-head nails. The connection point of the flat-head nails is fully covered with butyl tape to prevent moisture from seeping into the cold storage panel. The second edge trimming board surrounds the outer periphery of the water-repellent rock wool and presses and compacts the water-repellent rock wool to fix it to the cold storage panels on both sides of the expansion joint. The second edge trimming board has expansion and contraction allowance at the expansion joint. The two sides of the second edge trimming board are nailed into the top surface of the cold storage panels on both sides of the expansion joint with flat-head nails for fixation. Butyl tape is fully applied to the nail holes. The condensate drainage device includes a decorative cover plate with a built-in water collection function located below the connecting plate. Waterproof sealant is injected at the bottom of the joint of each decorative cover plate along the longitudinal direction of the expansion joint. The joints of the decorative cover plate are staggered from the joints between the cold storage plate and the cold storage plate. The lower side of the decorative cover plate is provided with a water collection trough with a drainage function, and the lower side of the decorative cover plate is provided with a drain pipe for discharging the collected condensate into the drainage system inside the ski resort. The self-adhesive bitumen waterproof membrane includes a first layer of self-adhesive bitumen waterproof membrane located between the bottom surface of the water-repellent rock wool and the top of the first edge-sealing board, and a second layer of self-adhesive bitumen waterproof membrane laid on the side and top surfaces of the water-repellent rock wool. The first layer of self-adhesive bitumen waterproof membrane has overlap lengths at both ends and is folded and laid in the middle area of the expansion joint to allow for expansion and contraction. The second layer of self-adhesive bitumen waterproof membrane has expansion and contraction allowances in the middle area of the expansion joint and overlaps with the first layer of self-adhesive bitumen waterproof membrane to fully cover the water-repellent rock wool.
2. The indoor ski slope cold store panel deformation joint construction of claim 1, characterized in that, The accordion plate is serrated, and the condensate generated directly above the accordion plate is blocked by the serrated central groove when it passes through the accordion plate.
3. The indoor ski slope cold store panel deformation joint construction of claim 1, wherein, The two ends of the connecting plate are spherical, which can be smoothly pushed into the cavity of the spherical connector. The spheres at both ends of the connecting plate are movably connected to the cavity of the spherical connector.
4. The expansion joint structure of the cold storage panel in the indoor ski resort according to claim 1, characterized in that, The vapor barrier membrane includes a first vapor barrier membrane and a second vapor barrier membrane. The first vapor barrier membrane and the second vapor barrier membrane have expansion allowance at the expansion joint, and their sides are fixed to the cold storage panel with self-tapping screws.
5. A method of construction of a cold store panel deformation joint arrangement for an indoor ski slope according to any one of claims 1 to 4, characterised in that, The steps are as follows: S1. Positioning and layout: First, construct the cold storage panels on both sides of the expansion joint and fix the cold storage panels firmly. S2. After the cold storage panels on both sides of the expansion joint are fixed, use flat-head nails to fix the galvanized corner pieces at the lower external corners of the cold storage panels. At the same time as fixing the galvanized corner pieces, press the bellows board under the flat-head nails to fix it. S3. Fit the protruding part of the ball connector tightly with the two legs of the galvanized corner piece and secure it firmly with self-tapping screws; S4. Install the connecting plate, and push the spheres at both ends of the connecting plate into the cavity of the spherical connector; the connecting plate and the cold storage panel have the same length along the longitudinal direction of the expansion joint. S5. Install the decorative cover plate and nail it to the connecting plate with flathead nails. Place the water collection trough side of the decorative cover plate at a lower position and stagger the joints of the decorative cover plate from the joints of the cold storage plate. S6. Apply waterproof sealant to the joints of each decorative cover panel along the longitudinal direction. S7. Fill the middle of the expansion joint between the cold storage panels with thermal insulation cotton and seal it tightly; S8. The first edge trim is installed on the top surface of the cold storage panels on both sides of the expansion joint. The first edge trim is connected to the cold storage panel with flat-head nails. Butyl tape is fully applied where the flat-head nails are inserted. S9. Lay the first layer of self-adhesive asphalt waterproof membrane on top of the first edge trim, leaving an overlap length at both ends. Fold the membrane in the middle of the expansion joint, leaving room for expansion. S10. Lay water-repellent rock wool on the first layer of self-adhesive bitumen waterproof membrane; S11. A second layer of self-adhesive bitumen waterproof membrane is laid on top of the water-repellent rock wool. Similarly, expansion allowance is left in the middle area of the expansion joint. It overlaps with the first layer of self-adhesive bitumen waterproof membrane below the water-repellent rock wool, and the water-repellent rock wool is fully wrapped. S12. Install the second edge trimming plate. The second edge trimming plate is pressed and compacted with the water-repellent rock wool. Its two sides are attached to the top surface of the cold storage panel and connected with flat-head nails. Butyl tape is fully applied to the places where it contacts the flat-head nails. S13. Lay the first and second vapor barrier membranes to prevent external moisture from entering the expansion joint. Both vapor barrier membranes have expansion allowance in the middle area of the expansion joint, and their sides are fixed to the cold storage panel with self-tapping screws.