Steel structure roof expansion joint node

Abstract

The utility model discloses a steel structure roof expansion joint node which comprises at least two main purlins, an expansion gap is arranged between the opposite ends of the main purlins, a ceiling plate is arranged on the main purlins, secondary purlins are installed on the ceiling plate, and a continuous heat preservation layer covers the secondary purlins and the expansion gap. Roof panels are arranged at the positions, corresponding to the upper portions of the main purlines, of the heat preservation layer, an upper cover plate is arranged between the opposite ends of the roof panels, the opposite ends of the roof panels obliquely extend upwards, the tail ends of the roof panels are provided with hooking parts, and the upper ends of the hooking parts are matched with hooking bases of limiting plates in an inserted mode. The upper end face of the Z-shaped large support is fixedly connected with the upper cover plate, the lower end face of the Z-shaped large support is fixedly connected with the heat preservation layer, an inner cover plate is arranged between the opposite ends of the main purlines, and the end of the inner cover plate is inserted between the ceiling plate and the main purlines. The utility model has the advantages of convenient and reliable connection, strong structural stability, good waterproof effect, good thermal insulation performance and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel structure building especially to a steel structure roof expansion joint node. BACKGROUND

[0002] Expansion joint is mainly used for complex and large single building, mainly to avoid the thermal expansion and cold shrink of material caused by temperature change leading to component cracking, the main body steel structure is easy to be disconnected by independent structure system, and the metal roof needs to consider the whole waterproof and thermal insulation system except the component disconnection, especially the metal roof with complex structure layer, the expansion joint position is often the weak link of roof waterproof and thermal insulation, and the node of expansion joint position is particularly important for the whole roof waterproof and thermal insulation. SUMMARY

[0003] The utility model discloses a steel structure roof expansion joint node to solve the prior art problems.

[0004] The utility model discloses a steel structure roof expansion joint node, including at least two main purlins, be equipped with expansion joint gap between the opposite end of main purlin, be equipped with the suspended ceiling plate on the main purlin, install the secondary purlin on the suspended ceiling plate, the installation direction of secondary purlin is perpendicular with main purlin, and the continuous thermal insulation layer is covered on the secondary purlin and expansion joint gap upper surface, be equipped with the roof panel on the thermal insulation layer upper position corresponding main purlin, be equipped with the cover plate between the roof panel opposite end, the cover plate is inverted U type, and the horizontal flanging that cooperates with the roof panel is taken with the opening end, the top center is taken at least two inverted V type convex, and the hooking portion is taken to the inclined upward extension of the roof panel opposite end and the end, and the hooking portion upper end is inserted with the hook seat of the limiting plate and cooperates, and the limiting plate is fixedly connected with the thermal insulation layer through Z type small support, Z type big support is equipped in the inner side of Z type small support, and Z type big support upper end surface is fixedly connected with the cover plate, lower end surface and thermal insulation layer fixed connection, be equipped with the inner cover plate between the opposite end of main purlin, and the inner cover plate end part is inserted between the suspended ceiling plate and main purlin, and the inner cover plate center takes at least one V type convex.

[0005] The utility model discloses a steel structure roof expansion joint node, through the special structure and the connecting mode design of the roof panel opposite end, guarantee that the roof panel can freely slide expansion, avoid the roof leakage hidden danger at the same time, avoid the influence of possible leakage phenomenon to the thermal insulation layer, guarantee the thermal insulation effect, and convenient for on -the -spot installation. Meanwhile, through the structural design of the cover plate and the inner cover plate, under the action of temperature stress, can resist the deformation of temperature stress through the elastic deformation of itself, and can play the role of shunting roof rainwater, improve the waterproof effect of roof. In conclusion, the steel structure roof expansion joint node of the utility model has the advantages of convenient and reliable connection, strong structural stability, good waterproof effect, good thermal insulation performance and the like.

[0006] As a further improvement of the utility model, the Z-shaped large support is connected with the upper cover plate through self-tapping nails, and a length-through waterproof adhesive tape is arranged at the connecting position, the connecting position is located outside the hooking part, the connecting is convenient, and the waterproof effect is good, even if the connecting position leaks rainwater, the rainwater will be discharged outward to the upper part along the inclination of the opposite end of the roof panel.

[0007] As a further improvement of the utility model, the hooking part comprises a first horizontal edge, a first upward vertical edge and a first hooking inclined edge connected in sequence, the first upward vertical edge is attached to the facade of the limiting plate, and the first hooking inclined edge is inserted into the hook seat at the upper end of the limiting plate, so that the structure is simple, and the connecting is convenient.

[0008] As a further improvement of the utility model, the hooking part comprises a second horizontal edge, a second upward vertical edge, a lower inclined front extending edge and a second hooking inclined edge connected in sequence, the upward vertical edge is attached to the facade of the limiting plate, and the lower inclined front extending edge and the second hooking inclined edge are sleeved on the hook seat at the upper end of the limiting plate, so that the connecting is convenient and reliable.

[0009] As a further improvement of the utility model, the facade upper side of the Z-shaped small support is welded and fixed with the limiting plate, and the lower end surface is connected with the thermal insulation layer through self-tapping nails, so that the connecting is convenient and reliable.

[0010] As a further improvement of the utility model, the suspended ceiling plate and the roof panel are both corrugated plates, so that the self-weight is light, the strength is high, and the anti-deformation ability is strong. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic view of the steel structure roof expansion joint node of the utility model.

[0012] Figure 2 It is a schematic view of the steel structure roof expansion joint node of the utility model. Figure 1 It is an enlarged view of the middle K.

[0013] 1, main purlin, 2, expansion joint gap, 3, suspended ceiling plate, 4, secondary purlin, 5, thermal insulation layer, 6, roof panel, 7, upper cover plate, 8, inverted V-shaped convex, 9, hooking part, 10, limiting plate, 11, Z-shaped small support, 12, Z-shaped large support, 13, inner cover plate, 14, self-tapping nail, 15, length-through waterproof adhesive tape, 16, V-shaped convex. DETAILED DESCRIPTION

[0014] For example, Figures 1-2The illustrated steel structure roof expansion joint node comprises at least two main purlins 1, a expansion joint gap 2 is arranged between opposite ends of the main purlins 1, a suspended ceiling plate 3 is arranged on the main purlins 1, a secondary purlin 4 is installed on the suspended ceiling plate 3, the installation direction of the secondary purlin 4 is perpendicular to the main purlin 1, a continuous thermal insulation layer 5 is arranged on the secondary purlin 4 and the expansion joint gap 2, a roof panel 6 is arranged on the thermal insulation layer 5 corresponding to the position above the main purlin 1, an upper cover plate 7 is arranged between opposite ends of the roof panel 6, the upper cover plate 7 is in the shape of an inverted U, the opening end is provided with a horizontal flange matched with the roof panel 6, the top center is provided with at least two inverted V-shaped protrusions 8, the opposite ends of the roof panel 6 are inclined upward and are provided with hooking parts 9 at the tail ends, the upper end of the hooking part 9 is inserted and matched with the hook seat of the limiting plate 10 (i.e. the hook-shaped bent part at the top of the limiting plate 10), the limiting plate 10 is fixedly connected with the thermal insulation layer 5 through a Z-shaped small support 11, the inner side of the Z-shaped small support 11 is provided with a Z-shaped large support 12, the upper end surface of the Z-shaped large support 12 is fixedly connected with the upper cover plate 7, and the lower end surface is fixedly connected with the thermal insulation layer 5, an inner cover plate 13 is arranged between the opposite ends of the main purlin 1, the end part of the inner cover plate 13 is inserted between the suspended ceiling plate 3 and the main purlin 1, and the center of the inner cover plate 13 is provided with at least one V-shaped protrusion 16. The suspended ceiling plate 3 and the roof panel 6 are both corrugated plates, which are light in weight, high in strength and strong in anti-deformation capacity.

[0015] Specifically, the Z-shaped large support 12 is connected with the upper cover plate 7 through self-tapping nails 14, and the connection position is provided with 15, the connection position is located outside the hooking part 9, the connection is convenient, and the waterproof effect is good, even if rainwater seeps at the connection position, it will also be discharged outward along the inclined upward part of the opposite ends of the roof panel 6. The vertical upper side of the Z-shaped small support 11 is fixedly welded with the limiting plate 10, and the lower end surface is connected with the thermal insulation layer 5 through self-tapping nails 14, which is convenient and reliable.

[0016] In specific implementation, the structure of the hooking part 9 and the insertion and matching of the upper end of the hooking part 9 with the hook seat of the limiting plate 10 have various implementation manners. For example, as shown in the figure, Figure 2 In this embodiment, the hooking part 9 of the roof panel 6 on the left side comprises a first horizontal edge, a first upwardly turned vertical edge and a first hook-shaped inclined edge connected in sequence, the first upwardly turned vertical edge is attached to the vertical surface of the limiting plate 10, and the first hook-shaped inclined edge is inserted into the hook seat at the upper end of the limiting plate 10, which has a simple structure and is convenient to connect; the hooking part 9 of the roof panel 6 on the left side comprises a second horizontal edge, a second upwardly turned vertical edge, a downwardly inclined forwardly extending edge and a second hook-shaped inclined edge connected in sequence, the upwardly turned vertical edge is attached to the vertical surface of the limiting plate 10, and the downwardly inclined forwardly extending edge and the second hook-shaped inclined edge are sleeved on the hook seat at the upper end of the limiting plate 10, which is convenient to connect and has high reliability.

[0017] The steel structure roof expansion joint node of the embodiment is designed through the special structure and connecting mode of the opposite ends of the roof panel 6, so that the roof panel 6 can freely slide and expand, while avoiding the hidden danger of roof leakage and the influence of the possible leakage phenomenon on the thermal insulation layer 5, ensuring the thermal insulation effect and being convenient for on-site installation. Meanwhile, through the structural design of the upper cover plate 7 and the inner cover plate 13, under the action of temperature stress, the deformation caused by the temperature stress can be resisted through the elastic deformation of the upper cover plate 7 and the inner cover plate 13, and the upper cover plate 7 and the inner cover plate 13 can also play the role of shunting roof rainwater, improving the waterproof effect of the roof.

[0018] The utility model is not limited to the above embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art can make some replacement and deformation to some technical features according to the disclosed technical content without creative labor, and these replacement and deformation are all within the protection scope of the utility model.

Claims

1. A steel structure roof expansion joint node, comprising at least two main purlins, with an expansion gap provided between opposite ends of the main purlins, characterized in that: A ceiling panel is provided on the main purlin, and a secondary purlin is installed on the ceiling panel. The secondary purlin is installed in a direction perpendicular to the main purlin. A continuous insulation layer is covered on the secondary purlin and the expansion joint. A roof panel is provided on the insulation layer at a position corresponding to the position above the main purlin. An upper cover plate is provided between the opposite ends of the roof panel. The upper cover plate is in an inverted U shape, and the open end has a horizontal flange that matches the roof panel. The top center has at least two inverted V-shaped protrusions. The opposite ends of the roof panel are inclined It extends upward and has a hook portion at the end, the upper end of the hook portion is plugged into the hook seat of the limit plate, the limit plate is fixedly connected to the insulation layer through a Z-shaped small bracket, a Z-shaped large bracket is provided on the inner side of the Z-shaped small bracket, the upper end face of the Z-shaped large bracket is fixedly connected to the upper cover plate, and the lower end face is fixedly connected to the insulation layer, an inner cover plate is provided between the opposite ends of the main purlin, the end of the inner cover plate is inserted between the ceiling plate and the main purlin, and the center of the inner cover plate has at least one V-shaped protrusion.

2. The steel structure roof expansion joint node according to claim 1, characterized in that: The Z-shaped large bracket is connected to the upper cover plate by self-tapping screws, and a full-length water-stop tape is provided at the connection position, and the connection position is located outside the hook portion.

3. The steel structure roof expansion joint node according to claim 1, characterized in that: The hooking portion includes a first horizontal edge, a first upward-turned vertical edge and a first back-hook oblique edge connected in sequence, the first upward-turned vertical edge is in contact with the vertical surface of the limiting plate, and the first back-hook oblique edge is inserted into the hook seat at the upper end of the limiting plate.

4. The steel structure roof expansion joint node according to claim 1, characterized in that: The hooking portion includes a second horizontal edge, a second upward vertical edge, a downward oblique forward edge and a second back hook oblique edge connected in sequence, the upward vertical edge is attached to the vertical surface of the limiting plate, and the downward oblique forward edge and the second back hook oblique edge are sleeved on the hook seat at the upper end of the limiting plate.

5. The steel structure roof expansion joint node according to claim 1, characterized in that: The upper side of the vertical surface of the Z-shaped small bracket is welded and fixed to the limiting plate, and the lower end surface is connected to the insulation layer through self-tapping screws.

6. The steel structure roof expansion joint node according to any one of claims 1 to 5, characterized in that: The ceiling panels and roof panels are both made of corrugated boards.

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