Profiled steel sheet connecting structure of double-curved-surface reinforced concrete roof

Abstract

The utility model discloses a profiled steel sheet connecting structure of a double-curved-surface reinforced concrete roof in the technical field of building construction, which is characterized in that a profiled steel sheet is cut open and turned down to form an anchoring plate, and the anchoring plate is tightly attached to the top surface of a curved beam to form a larger connecting area, so that the connecting surface of the profiled steel sheet and the curved beam is increased, and the connecting strength between the profiled steel sheet and the curved beam is enhanced; the anchoring plate and the profiled steel sheet are welded into a whole through the studs, the integrity of the structure is improved, the studs and welding points of the studs and the curved beam are all located above the profiled steel sheet, all the components can be poured into concrete, the studs are effectively prevented from making contact with air, the corrosion probability is reduced, and the service life is prolonged; the side coaming and the upper coaming are added, the anchoring plate and the profiled steel sheet are welded to form the complete isolation plate, the profiled steel sheet is isolated into the inner side and the outer side, effective sealing is achieved, meanwhile, the strength can be improved, and the structural safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a profiled steel sheet connection structure for a hyperboloid steel-concrete roof. Background Technology

[0002] In some large public buildings, to express the architecture and its inherent meaning, a beautiful shape and a uniquely structured landmark are required. Often, the roof is made curved. Some buildings, for aesthetic purposes, feature hyperboloid roofs. Hyperboloid roofs are typically supported by single-curved steel beams, with corrugated profiled steel sheets laid on top of these single-curved beams. The crests and troughs of the profiled steel sheets adapt to the curved surface of the steel beams. The profiled steel sheets are tilted to support the other side of the curved surface, creating a hyperboloid shape within the space. The profiled steel sheets serve as the base formwork for the upper concrete, and concrete is then laid on top of the profiled steel sheets, forming the hyperboloid shape.

[0003] The load on the corrugated steel sheet is transferred through the following path: both the permanent and dynamic loads of the roof are transferred to the corrugated steel sheet. The corrugated steel sheet then transfers the roof load to the secondary steel beams, which in turn transfer it to the main beams, and finally to the steel columns, thereby achieving the purpose of providing stable support for the building.

[0004] This structure presents several technical challenges: 1. Because the profiled steel sheet is inclined longitudinally and curved laterally, the contact area between the profiled steel sheet and the top surface of the curved beam is small. In particular, the contact range between the curved beam and the profiled steel sheet is only 5-10mm wide, which does not meet the requirement of 5% of the contact area of ​​the curved beam. Furthermore, the profiled steel sheet and the curved beam are supported at an incline, resulting in a line contact between the curved beam and the profiled steel sheet. This causes a large triangular gap to form at the support point between the curved beam and the profiled steel sheet, making it impossible for the profiled steel sheet to transfer the roof load to the steel beam. The load can only be borne by the strength of the profiled steel sheet itself, resulting in insufficient load-bearing capacity.

[0005] 2. When corrugated steel sheets need to be connected to steel beams, shear studs are used to anchor and weld them to the steel beams. However, because the corrugated steel sheets are inclined and placed on the curved steel beams, the shear studs need to penetrate the corrugated steel sheets before being welded to the steel beams. At this time, the weld points of the steel beams and shear studs are exposed in the gap between the corrugated steel sheets and the steel beams. The weld points and shear studs are in contact with the air, which can easily lead to rust in humid areas. This will affect the overall connection strength of the corrugated steel sheets. The connection area between the corrugated steel sheets and the steel beams is already very small. Once the shear studs and weld points rust or crack, there is a risk that the corrugated steel sheets will detach from the steel beams, creating a safety hazard.

[0006] 3. When installing and welding this type of profiled steel sheet on steel beams, the construction is generally carried out on the roof and beam. Personnel cannot work in the building space below the profiled steel sheet. If it is necessary to seal or grout the inner side of the profiled steel sheet, scaffolding or aerial work platform needs to be rebuilt. The operation is cumbersome, the construction progress is slow, and the connection effect is not good.

[0007] Based on this, this utility model designs a profiled steel sheet connection structure for a hyperboloid steel-concrete roof to solve the above problems. Utility Model Content

[0008] The purpose of this utility model is to provide a profiled steel sheet connection structure for a hyperboloid reinforced concrete roof. This structure allows the profiled steel sheet to be cut open and folded down to form an anchor plate. The anchor plate is then tightly fitted to the top surface of the curved beam to create a larger connection area, increasing the connection surface between the profiled steel sheet and the curved beam, thus increasing the connection strength. Furthermore, the studs and weld points to the curved beam are all located above the profiled steel sheet, allowing these components to be entirely encased in concrete. This effectively prevents the studs from contacting air, reducing the chance of corrosion and increasing service life. Moreover, the profiled steel sheet and the curved beam are welded together using the same stud to form an integral structure, increasing the overall structural integrity and improving structural safety.

[0009] This utility model is achieved as follows: a profiled steel sheet connection structure for a hyperboloid steel-concrete roof.

[0010] The building structure includes: profiled steel sheet, curved beam and column, wherein the column is a pile foundation column, the curved beam is a bent I-beam, and the curved beam is fixedly welded to the top of the column; multiple connectors are arranged in a rectangular array on the profiled steel sheet, and the trough surface of the profiled steel sheet is fixedly welded to the top of the curved beam through the connectors, and the profiled steel sheet is inclined.

[0011] The connectors include: anchor plates, studs, side panels, and top panels;

[0012] The anchor plate is a flat plate, and the lower edge of the anchor plate is integrally connected to the profiled steel plate. The profiled steel plate is open at the support frame of the curved beam. The bottom of the anchor plate is tightly fitted to the top of the curved beam. A side sealing plate is provided on each of the left and right sides of the anchor plate. The anchor plate and the side sealing plate are connected as an integral structure.

[0013] A top sealing plate is also provided on the upper side of the anchor plate. The anchor plate, two side sealing plates and one top sealing plate form a closed groove for the top opening. The two side sealing plates are respectively sealed and fitted to the left and right sides of the opening of the profiled steel sheet. The top sealing plate is covered and fitted to the upper side of the opening of the profiled steel sheet. The opening of the profiled steel sheet is closed and isolated by the anchor plate, side sealing plates and top sealing plate.

[0014] The anchor plate is equipped with multiple studs, and the anchor plate and the curved beam are welded together to form an integral load-bearing structure via the studs; the studs are located within a closed groove at the top of the anchor plate.

[0015] The side panel is a right-angled triangular flat plate, and the upper panel is a square flat plate. The upper panel is connected and fixed to one right-angled side of the side panel. The two side panels and the upper panel form a U-shaped groove structure, and the two side panels are symmetrically arranged on the left and right sides of the upper panel. A support plate is also provided at the bottom of the upper panel. The upper panel and the support plate form an L-shaped plate.

[0016] The side panels on both sides are fitted to the inner side of the side sealing plate, and the exposed portions of the upper panel and the top sealing plate on the inner side of the building are tightly fitted; the support plate is tightly fitted to the flange at the top of the curved beam.

[0017] Furthermore, the two side sealing plates and one top sealing plate are welded to the top of the profiled steel sheet;

[0018] The gap between the anchor plate and the profiled steel sheet is sealed by welding the side sealing plate and the top sealing plate.

[0019] Furthermore, the length of the stud is less than the height difference between the crest and trough surfaces of the profiled steel sheet;

[0020] The studs penetrate the anchor plate and are welded to the curved beam for fixation; the bottom surface of the anchor plate is welded to the top plane of the curved beam flange for fixation.

[0021] The studs are shear studs.

[0022] Furthermore, the side panels, top panels, and support plates are all fireproof rubber sheets, and the side panels, top panels, and support plates are sealed and attached to the inner side of the enclosed groove formed by the side sealing panels and top sealing panels using adhesive.

[0023] The beneficial effects of this utility model are: 1. This utility model cuts the profiled steel sheet to form an anchor plate. The anchor plate is completely attached to the curved beam, with a large contact area and a more solid connection. This allows the profiled steel sheet to transfer a larger load to the curved beam, and the curved beam to support the profiled steel sheet, thereby transferring the load to the building columns. This meets the structural bearing capacity requirements, improves the overall structural safety, and avoids the overloading of the profiled steel sheet.

[0024] 2. This device adds side sealing plates and top sealing plates, connecting the entire anchor plate into an integral structure, forming a unified load-bearing structure. The anchor plate, profiled steel sheet, and curved beam are all firmly welded together with studs, and a single weld point can weld the three components together, achieving a strong connection and providing shear resistance. The flat laying of the anchor plate makes it easier to install studs, making construction more convenient. At the same time, the anchor plate is completely fitted to the curved beam, and the studs and the connection weld points of the three are all above the profiled steel sheet. After construction, they are poured inside the concrete, and the studs and weld points are no longer exposed to the air. The overall structure is not prone to corrosion, effectively improving the structural connection life and connection strength.

[0025] 3. This device also includes side and top panels. These flat rubber sheets are lightweight and easy to install. During the cutting process, the side and top panels can be attached to the side and top sealing panels, effectively sealing them and preventing them from contacting air. During construction, no scaffolding is required. Before welding, the panels are simply attached to the inside of the designed welding path. No further construction is needed. Once the side and top sealing panels are welded to the profiled steel sheet, the construction is complete. The sealing effect is excellent, and the entire connection structure is doubly sealed, effectively reducing the occurrence of corrosion at the structural connection points. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the external structure of the hyperbolic roof of this utility model;

[0028] Figure 2 This is a schematic diagram of the installation structure of the single-curved steel beam and the profiled steel sheet of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the profiled steel sheet and the curved beam of this utility model;

[0030] Figure 4 This is a schematic diagram of the connector of this utility model on a profiled steel sheet;

[0031] Figure 5 This is a schematic diagram of a single connector structure of this utility model;

[0032] Figure 6 This is a cross-sectional view of the side of the connector of this utility model;

[0033] Figure 7 This is a side view of the side panel enclosure of the present invention on the side sealing plate;

[0034] Figure 8 This is a schematic diagram of the mating structure of the side panel and the top panel of this utility model;

[0035] Figure 9 This is a schematic diagram of the existing building structure in which the anchored protruding profiled steel sheet is welded to the curved beam.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1-Anchor plate, 11-Side sealing plate, 12-Top sealing plate, 13-Stud, 2-Side enclosure plate, 21-Upper enclosure plate, 22-Support plate, 3-Corrugated steel sheet, 31-Curved beam, 32-Column. Detailed Implementation

[0038] Please see Figures 1 to 9 As shown, this utility model provides a profiled steel sheet connection structure for a hyperboloid steel-concrete roof. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific embodiments.

[0039] In a specific embodiment of the technical solution of this utility model:

[0040] The building structure includes: profiled steel sheet 3, curved beam 31, and column 32. Column 32 is a pile foundation column, and curved beam 31 is a bent I-beam. Curved beam 31 is fixedly welded to the top of column 32. Multiple connectors are arranged in a rectangular array on profiled steel sheet 3. The trough surface of profiled steel sheet 3 is fixedly welded to the top of curved beam 31 through connectors. Profiled steel sheet 3 is inclined and curved. The inclination direction is along the longitudinal line of the crest and trough of profiled steel sheet 3. That is, the same crest or trough is higher at one end and lower at the other end, which makes it easy for the curved surface of profiled steel sheet 3 to fit with curved beam 31.

[0041] The connectors include: anchor plate 1, studs 13, side panels 2, and top panel 21;

[0042] Anchor plate 1 is a flat plate. The lower edge of anchor plate 1 is integrally connected to profiled steel plate 3. The profiled steel plate 3 is open at the support frame of curved beam 31. The bottom of anchor plate 1 is tightly attached to the top of curved beam 31. Anchor plate 1 is a portion of profiled steel plate 3 cut at the recess. Anchor plate 1 and profiled steel plate 3 are not completely cut off. The left and right sides are cut off, the top side near the high position is cut off, and the low side remains connected. A side sealing plate 11 is set on each of the left and right sides of anchor plate 1. Anchor plate 1 and side sealing plate 11 are connected as an integral structure.

[0043] A top sealing plate 12 is also provided on the upper side of the anchor plate 1. The anchor plate 1, two side sealing plates 11 and one top sealing plate 12 form a closed groove for the top opening. The two side sealing plates 11 are respectively sealed and fitted to the left and right sides of the opening of the profiled steel plate 3. The top sealing plate 12 is covered and fitted to the upper side of the opening of the profiled steel plate 3. The opening of the profiled steel plate 3 is closed and isolated by the anchor plate 1, the side sealing plates 11 and the top sealing plate 12.

[0044] Two side sealing plates 11 and one top sealing plate 12 are welded to the top of the profiled steel sheet 3;

[0045] The gap between the anchor plate 1 and the profiled steel sheet 3 is sealed by welding the side sealing plate 11 and the top sealing plate 12. This ensures a seamless connection between the anchor plate 1 and the profiled steel sheet 3, ensuring complete isolation and forming both the interior and exterior sides of the building.

[0046] Multiple studs 13 are provided on the anchor plate 1. The anchor plate 1 and the curved beam 31 are welded together to form an integral load-bearing structure through the studs 13. The studs 13 are located in the closed groove at the top of the anchor plate 1 and are shear studs.

[0047] The length of the stud 13 is less than the height difference between the crest surface and the trough surface of the profiled steel sheet 3. The profiled steel sheet 3 is a crest surface that is raised, and the adjacent one is a trough surface that is recessed downward. The crest surface and the trough surface are connected in parallel to form a complete profiled steel sheet 3, ensuring that the top of the stud 13 does not protrude upward above the profiled steel sheet 3, thus avoiding the situation where the stud 13 is exposed after the concrete is poured.

[0048] The stud 13 penetrates the anchor plate 1 and is welded to the curved beam 31 for fixation; the bottom surface of the anchor plate 1 is welded to the top plane of the flange of the curved beam 31 for fixation.

[0049] The side panel 2 is a right-angled triangular flat plate, and the upper panel 21 is a square flat plate. The upper panel 21 is connected and fixed to one right-angled side of the side panel 2. The two side panels 2 and the upper panel 21 form a U-shaped groove structure, and the two side panels 2 are symmetrically arranged on the left and right sides of the upper panel 21. The bottom of the upper panel 21 is also provided with a support plate 22. The upper panel 21 and the support plate 22 form an L-shaped plate.

[0050] The side panels 2 on both sides are attached to the inner side of the building of the side sealing plate 11, and the upper panel 21 and the exposed part of the top sealing plate 12 on the inner side of the building are tightly attached; the support plate 22 is tightly attached to the flange of the top of the curved beam 31.

[0051] The side panel 2, the upper panel 21, and the support plate 22 are all fireproof rubber sheets. The side sealing plate 11 and the top sealing plate 12 form a barrier. The side panel 2, the upper panel 21, and the support plate 22 are sealed and attached to the inner side of the closed groove formed by the side sealing plate 11 and the top sealing plate 12 with adhesive. This ensures that the inner parts of the side sealing plate 11 and the top sealing plate 12 exposed to the air are covered and sealed by the side panel 2 and the upper panel 21, preventing the side sealing plate 11 and the top sealing plate 12 from contacting the air. The inner side of the anchor plate 1 is tightly fitted and sealed with the curved beam 3, and it does not come into contact with the air after welding.

[0052] It should be noted that:

[0053] 1. The corrugated steel sheet 3 has a wavy, uneven surface, allowing it to be bent along the direction of the folds, thus forming a shape similar to the designed curved surface for support and forming the bottom formwork for concrete pouring. Only by bending the corrugated steel sheet 3 in this way can this architectural curved surface effect be achieved. The non-folded direction of the corrugated steel sheet 3 cannot be bent; it can only be supported in a straight line. This results in an angle between the top of the curved beam 31 and the corrugated steel sheet 3, such as... Figure 9 As shown, in the existing structure, the profiled steel sheet 3 is laid flat and inclined on the curved beam 31, with a very small contact area between them. Support is only provided at the corners of the curved beam 31, resulting in ineffective load transfer. This leads to a wedge-shaped gap with a triangular cross-section between the profiled steel sheet 3 and the building, causing insufficient support from the profiled steel sheet 3. The structure relies entirely on welding with studs 13, resulting in low structural strength. This device is completely different. Instead, the joints of the profiled steel sheet 3 are cut open along the left, right, and top directions to form anchor plates 1. These anchor plates 1 are then pressed down to form a flat plate that fits against the curved beam 31. Figure 6 As shown, the studs 13 on the top of the anchor plate 1 pass through the profiled steel plate 3 and are welded firmly to the curved beam 31, forming a connecting component that integrates the three parts into one, thus forming an overall structure.

[0054] 2. In this wedge-shaped gap, the space is insufficient and the height is too large, making it too difficult to build the formwork. As a result, concrete cannot be poured to support it. In the end, only a pad can be inserted at the bottom of the profiled steel plate 3. The space is too narrow and the top space is too low, making it impossible to wear a welding mask and weld. This device does not require operation inside the profiled steel plate 3, i.e. at the bottom. Instead, it can directly use adhesive to attach the side panel 2 and the top panel 21. The operation is simple, the construction is convenient, and the construction difficulty is low. Attaching the side panel 2 and the top panel 21 is only for further rust prevention and sealing effect. It has a good effect and effectively seals and protects the side sealing plate 11 and the top sealing plate 12.

[0055] 3. Figure 9As can be seen from the existing structure, the lower end of the stud 13 penetrates the profiled steel plate 3 and is exposed to the outside, making it prone to corrosion. However, in this device, the stud 13 is welded inside the anchor plate 1 and simultaneously welded together with the top of the curved beam 31 to form a whole. The stud 13 body is above the profiled steel plate 3 and is finally poured and embedded in concrete to prevent contact with air. This makes the stud 13 of this device less prone to corrosion, and the structural strength and durability are better.

[0056] During installation, the basic support components such as the curved beam 31 and the column 32 are first installed. Then, the profiled steel sheet 3 is taken out. The length of the profiled steel sheet 3 needs to meet the design requirements. Alternatively, a smaller profiled steel sheet 3 can be selected according to the actual hoisting requirements. Multiple profiled steel sheets 3 can be spliced ​​together to form a complete roof support slab. The connection and support points between the profiled steel sheet 3 and the curved beam 31 are cut. The left and right sides and the inclined upper side of the components that need to be supported and connected are cut open. The lower side of the anchor plate 1 maintains the overall structure connected to the profiled steel sheet 3. Then, it is pressed down and bent to form the anchor plate 1. The bottom of the anchor plate 1 is attached to the flange plate at the top of the curved beam 31.

[0057] Then remove the stud 13, and weld the stud 13, anchor plate 1 and profiled steel plate 3 into a whole, ensuring that the weld penetrates the profiled steel plate 3 and welds to the curved beam 31, ensuring that there is no gap or void at the connection between the profiled steel plate 3 and the curved beam 31, and that the entire anchor plate 1 and profiled steel plate 3 are firmly welded together.

[0058] Then, take out two side sealing plates 11 and two side enclosure plates 2. Press down the anchor plate 1, and its left and right sides form a broken triangular hole with the profiled steel plate 3. Layout and measure on both sides of the anchor plate 1 to determine the size of the hole. Then cut a larger area of ​​side sealing plate 11 to ensure that the side sealing plate 11 covers the gap between the left and right sides of the anchor plate 1 and the profiled steel plate 3. Glue the side enclosure plate 2 onto the curved beam 31 in the building's interior space of the hole, and simultaneously glue the side enclosure plate 2 to the building's interior side of the side sealing plate 11 to ensure a firm bond. Then place the side with the glued side enclosure plate 2 facing the interior side. Then bend the side sealing plate 1 and attach it to the profiled steel plate 3 to ensure that the hole between the profiled steel plate 3 and the anchor plate 1 is completely covered. Then weld the side enclosure plate 2 to the profiled steel plate 3 and the anchor plate 1 to form a sealed and complete structure.

[0059] Similarly, the side sealing plates 11 on both the left and right sides are welded to the side panels 2 in the same way. At the same time, the bottom and top edges of the side panels 2 need to be tightly and securely fitted to the profiled steel sheet 3 and the curved beam 31. The installation method of the top sealing plate 12 is the same as that of the side sealing plates 11. The top sealing plate 12 is also pushed into the interior side after the upper panel 21 is pasted on the interior side. Finally, the top sealing plate 12 is welded and sealed to the profiled steel sheet 3 and the anchor plate 1. This completely welds the opening between the anchor plate 1 and the profiled steel sheet 3, so that the side sealing plates 11, top sealing plates 12 and anchor plates 1 form a downward-facing, completely closed groove.

[0060] Later, a longer spray painting device can be used indoors to spray a release liner or release paint onto the interior side of the side panel 2. Finally, concrete needs to be poured on top of the profiled steel sheet 3, and the concrete should be shaped to form a curved roof surface.

[0061] The upper side of this device refers to the higher side of the inclined profiled steel sheet 3, and the lower side refers to the lower side of the inclined sheet. The inside and outside of this device refer to the interior of the building and the exterior of the roof. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0062] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A corrugated steel sheet connecting structure of a double-curved steel roof, characterized by, The building structure comprises a profiled steel sheet (3), a curved beam (31) and a column (32), the column (32) is a pile foundation column body, the curved beam (31) is a bent I-beam, the curved beam (31) is fixedly welded at the top of the column (32); a plurality of connecting pieces are arranged in a rectangular array on the profiled steel sheet (3), the valley plate surface of the profiled steel sheet (3) is fixedly welded on the top of the curved beam (31) through the connecting pieces, and the profiled steel sheet (3) is arranged obliquely; The connecting piece comprises an anchoring plate (1), a stud (13), a side wall plate (2) and an upper wall plate (21); The anchoring plate (1) is a flat plate, the lower side edge of the anchoring plate (1) is connected with the profiled steel sheet (3) as an integral structure, the profiled steel sheet (3) is opened at the supporting frame of the curved beam (31), the bottom of the anchoring plate (1) is tightly attached to the top of the curved beam (31), and one side sealing plate (11) is arranged on the left and right sides of the anchoring plate (1) respectively; the anchoring plate (1) and the side sealing plate (11) are connected as an integral structure; The upper side of the anchoring plate (1) is further provided with a top sealing plate (12), the anchoring plate (1), the two side sealing plates (11) and the top sealing plate (12) form a closed groove with a top opening, the two side sealing plates (11) are respectively tightly attached to the left and right sides of the opening of the profiled steel sheet (3), and the top sealing plate (12) is tightly attached to the upper side of the opening of the profiled steel sheet (3); the opening of the profiled steel sheet (3) is closed and isolated by the anchoring plate (1), the side sealing plate (11) and the top sealing plate (12); A plurality of studs (13) are arranged on the anchoring plate (1), and the anchoring plate (1) and the curved beam (31) are welded as an integral stress structure through the studs (13); the stud (13) is located in the closed groove at the top of the anchoring plate (1), The side wall plate (2) is a right-angled triangular flat plate, the upper wall plate (21) is a square flat plate, the upper wall plate (21) is connected and fixed with one side right-angled edge of the side wall plate (2), the two side wall plates (2) and the upper wall plate (21) form a U-shaped groove structure, and the two side wall plates (2) are symmetrically arranged on the left and right sides of the upper wall plate (21) and are parallel to each other, and the bottom of the upper wall plate (21) is further provided with a supporting plate (22), and the upper wall plate (21) and the supporting plate (22) form an L-shaped plate; The two side wall plates (2) are tightly arranged on the inner side of the side sealing plate (11), the upper wall plate (21) and the top sealing plate (12) are tightly attached to the exposed part of the inner side of the building, and the supporting plate (22) is tightly attached to the flange at the top of the curved beam (31).

2. The corrugated steel sheet connecting structure of a hyperboloidal steel-concrete roof according to claim 1, wherein: The two side sealing plates (11) and the top sealing plate (12) are welded on the top of the profiled steel sheet (3); The gap between the anchoring plate (1) and the profiled steel sheet (3) is sealed by welding the side sealing plate (11) and the top sealing plate (12).

3. The corrugated steel sheet connecting structure of a double-curved steel roof according to claim 1, characterized in that: The length of the stud (13) is less than the height difference between the peak plate surface and the valley plate surface of the profiled steel sheet (3); The stud (13) penetrates the anchoring plate (1) and is welded and fixed with the curved beam (31); the bottom surface of the anchoring plate (1) is welded and fixed with the top plane of the flange of the curved beam (31). The pegs (13) are shear pins.

4. The corrugated steel sheet connecting structure of a hyperboloidal steel-concrete roof according to claim 1, wherein: The side wall (2), the upper wall (21) and the supporting wall (22) are all fireproof rubber walls, and the side wall (2), the upper wall (21) and the supporting wall (22) are sealed and attached to the inner side of the closed groove building formed by the side sealing plate (11) and the top sealing plate (12) through an adhesive.

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