Positive roof structure

Abstract

The utility model discloses an upright roof structure, which belongs to the technical field of roof engineering and sequentially comprises a structural layer, a slope making layer, a thermal insulation layer, a leveling layer, a waterproof layer, an isolating layer and a protective layer from bottom to top, the protective layer uses a lightning protection ring network as a warehouse dividing seam to divide each construction warehouse area and pour fine aggregate concrete, and each warehouse area is independently provided with a reinforcing mesh. The reinforcing mesh is fixed with the mesh control device; and steel bars in the structural layer are fixed with the steel bar control device. The roof lightning protection looped network and the protection layer are arranged in a fusion mode and serve as bin dividing seams, all procedures are alternately and fused, independent procedure work is reduced, the construction efficiency is improved, and the utilization rate of the roof is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of roofing engineering, and particularly relates to an inverted roofing structure. Background Art

[0002] During the construction of the existing roofing project, the steps are cumbersome, the construction period is long, and the cracking of the fine stone concrete surface layer of the roof is a difficult point in construction management, which affects the appearance quality, has potential hidden dangers of surface layer cracking and leakage, and increases the maintenance cost.

[0003] When pouring the beam and slab concrete, during the pouring process, due to the large number of upper reinforcement bars in the beam, it is easy to collapse. Moreover, the conventional construction is to install the lightning protection network in the later stage, which prolongs the construction period. Therefore, there is an urgent need to improve the roofing structure to make the construction convenient, of good quality and low cost. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an inverted roofing structure, which is convenient for construction and has a relatively low cost.

[0005] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0006] An inverted roofing structure, which successively includes a structural layer, a slope-forming layer, a thermal insulation layer, a leveling layer, a waterproof layer, an isolation layer and a protective layer from bottom to top. The protective layer uses a lightning protection ring network as a construction joint to divide each construction area and pour fine stone concrete. The steel bar mesh sheets are independently arranged in each area and are fixed to the mesh control device; the steel bars in the structural layer are fixed to the steel bar control device.

[0007] The further improvement of the technical solution of the utility model lies in that: the lightning protection ring network includes flat steel connected in a grid manner and elastic rubber arranged on both sides of the flat steel. The vertical and horizontal intersection parts of the lightning protection ring network are diamond-shaped welded flats with arcs, and elastic rubber is arranged on both sides of the diamond-shaped welded flats.

[0008] The further improvement of the technical solution of the utility model lies in that: the steel bar control device includes trays arranged up and down and connected by steel bars. Through holes are arranged on the trays. Crossed horizontal steel bars and vertical steel bars are arranged between the upper and lower trays, and the horizontal steel bars and the vertical steel bars are fixed through the through holes and the trays by binding wires.

[0009] The further improvement of the technical solution of the utility model lies in that: the trays are in a slightly arc shape, and the upper and lower trays are symmetrically arranged.

[0010] The further improvement of the technical solution of the utility model lies in that: the mesh control device includes a base and a tray supported and connected above the base by a support rod. The tray includes upper and lower plates, and the steel bar mesh sheet is fixed between the upper and lower plates.

[0011] A further improvement of the technical solution of the present utility model lies in that: the upper and lower plates are connected by steel bars, and both the upper and lower plates are provided with concave and convex points.

[0012] A further improvement of the technical solution of the present utility model lies in that: the steel bar control devices and the mesh control devices are arranged in a plum blossom shape on different layers of the roof, and the distance between each steel bar control device or mesh control device is 800 - 1000 mm.

[0013] A further improvement of the technical solution of the present utility model lies in that: the insulation board in the insulation layer is a long panel with tooth grooves provided on the bottom surface, the cross-section of the tooth grooves is several connected trapezoids, and the tooth grooves of the insulation board are bonded to the concrete.

[0014] A further improvement of the technical solution of the present utility model lies in that: the flat steel of the lightning protection ring network uses 40*4 mm galvanized flat steel, the elastic rubber includes elastic EPDM, the thickness of the elastic rubber on both sides of the flat steel of the lightning protection ring network is 8 - 12 mm, and the thickness of the elastic rubber on both sides of the diamond-shaped welded flat is 20 mm.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model is:

[0016] The tooth groove design at the bottom of the insulation board of the roof structure of this application improves the bonding strength between the insulation board and the structural layer. The roof insulation and the structural board can be constructed synchronously, effectively shortening the construction period and reducing the influence of cross-operation. The insulation board avoids water evaporation and has a certain moisturizing effect, which is beneficial to the maintenance of concrete.

[0017] The lightning protection ring network of the roof of this application is integrated with the protective layer and also serves as a dividing joint. Each process is interspersed and integrated, reducing separate process work, improving construction efficiency, and improving the utilization rate of the roof.

[0018] This application uses steel bar control devices and mesh control devices. At the same time, the steel bars in each dividing bin are independently arranged and not connected to other bin areas, reducing the constraint of the steel bar mesh on the concrete shrinkage and causing concrete cracking. They are placed before the concrete initial setting to avoid being stepped on and displaced during the construction of the steel bar mesh. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the insulation board of the present utility model;

[0020] Figure 2 It is a schematic diagram of the steel bar control device of the present utility model;

[0021] Figure 3 It is a schematic diagram of the support plate in the steel bar control device;

[0022] Figure 4 It is a schematic diagram of the lightning protection ring network;

[0023] Figure 5 It is a schematic diagram of flat steel and elastic rubber in the lightning protection ring network;

[0024] Figure 6 It is a schematic diagram of a diamond-shaped welded flat in the lightning protection ring network;

[0025] Figure 7 It is a schematic diagram of the mesh control device of the present utility model;

[0026] Among them, 1, transverse steel bars, 2, longitudinal steel bars, 3, binding wire, 4, supporting plate, 5, flat steel, 6, elastic rubber, 7, steel bar mesh, 8, tray, 9, base. Specific implementation manner

[0027] The following further describes the present utility model in detail with reference to embodiments:

[0028] The positive roof structure successively includes a structural layer, a slope-forming layer, a thermal insulation layer, a leveling layer, a waterproof layer, an isolation layer and a protective layer from bottom to top. The protective layer uses a lightning protection ring network as a construction joint to divide each construction area and pour fine stone concrete. Steel bar meshes are independently arranged in each area, and the steel bar meshes are fixed to the mesh control device; the steel bars in the structural layer are fixed to the steel bar control device.

[0029] Construction process flow of the positive roof structure: (structural slope-forming) Roof structural slab construction → Roof thermal insulation construction synchronized with the structural slab → Leveling layer, exhaust duct (pipe) construction → Waterproof layer construction → Isolation layer construction → Optimization of zoning → Roof lightning protection ring network construction → Lightning protection ring network serving as a construction joint → Binding of steel bar meshes in the block → Pouring by the skip-joint method → Finishing with the original mortar → Sprinkling water for curing.

[0030] The concrete of the structural beam and slab is poured simultaneously. First, the concrete of the beam is poured in layers into a stepped shape and advanced forward. When reaching the bottom elevation of the slab, it is then poured together with the concrete of the slab. As the step continuously extends, the pouring of the slab also continuously advances. To prevent cracks in the slab, first use an inserted vibrator for vibration and then use a flat vibrator for vibration until the surface shows slurry. Then, level the concrete surface with a wooden rake. Before initial setting, press and smooth it once with a wooden float. Before final setting, lay the thermal insulation board. When laying the thermal insulation board, knead and press it to ensure firm bonding with the concrete, and lay adjacent boards with staggered joints.

[0031] When laying the thermal insulation board, since the concrete has not completely solidified, to ensure that the thermal insulation board does not sink and can be firmly bonded to the concrete, use the contact surface between the thermal insulation board of the present application and the concrete as well as the steel bar control device.

[0032] The structure of the thermal insulation board is as Figure 1 shown. The thermal insulation board in the thermal insulation layer is a long panel with tooth grooves provided on the bottom surface. The cross-section of the tooth grooves is several connected trapezoids. The tooth grooves of the thermal insulation board are bonded to the concrete to ensure the surface density of the concrete.

[0033] The steel bar control device is as follows Figure 2 , 3 As shown, the steel bar control device includes upper and lower supporting plates 4 arranged vertically and connected by steel bars. Through holes are provided on the supporting plates 4. Transverse steel bars 1 and longitudinal steel bars 2 are arranged in a cross shape between the upper and lower supporting plates 4. The transverse steel bars and longitudinal steel bars are fixed by binding wires 3 passing through the through holes and the supporting plates 4. The upper and lower supporting plates 4 are in a slightly arc shape and are symmetrically arranged. Specifically, the supporting plates 4 can be made of slightly arc-shaped plates and are provided with through holes, and concrete can fill the gaps to increase the bonding strength.

[0034] By adopting this method, the bonding strength between the insulation board and the structural layer is high. During the setting process of the concrete, it is bonded to the insulation board, that is, full bonding is achieved. At the same time, the insulation board is provided with a tooth groove type on the side close to the concrete surface, which increases the bonding area and further improves the bonding force between the concrete and the insulation board. Its bonding strength exceeds the tensile strength of the insulation board itself.

[0035] For the grid design of the lightning protection ring network of the protective layer of the roof structure, the lightning protection ring network is used as the construction joint to divide each construction area and pour fine aggregate concrete. Reinforcement mesh sheets are independently arranged in each area, and the reinforcement mesh sheets are fixed to the mesh control device; as Figure 4 shown, designed according to the zoning requirements, the lightning protection ring network is made of galvanized flat steel, and the size can be selected as 40*4mm. Elastic rubber is pasted on both sides of the flat steel, as Figure 5 shown, EPDM can be selected, and the thickness of the elastic material can be selected as 10mm. The vertical and horizontal intersection parts of the lightning protection ring network are diamond-shaped welded flats with arcs, as Figure 6 shown, elastic rubber is arranged on both sides of the diamond-shaped welded flat, and the material can be selected as EPDM. The thickness of the elastic rubber on both sides of the diamond-shaped welded flat can be selected as 20mm.

[0036] The design of the lightning protection ring network in this application does not affect the temperature deformation of the concrete protective layer, and can also eliminate the influence of different temperature deformations between the lightning protection flat steel and the concrete protective layer.

[0037] To prevent the steel bars from sinking and for positioning preparation, the reinforcement mesh sheets are placed in the protective layer later, and the steel bar protective layer control device is optimized. The finished reinforcement mesh sheets are pressed in before the initial setting, 10mm away from the concrete surface. The reinforcement mesh sheets are tied or welded in advance according to the optimized zoning dimensions. The reinforcement mesh sheets are independently arranged in each area and are not connected to the other areas.

[0038] To prevent the steel bars from sinking, the mesh control device is used to fix the reinforcement mesh sheets. As Figure 7 shown, the mesh control device includes a base 9 and a tray 8 supported and connected above the base by a support rod. The tray includes upper and lower plates, and the reinforcement mesh sheet 7 is fixed between the upper and lower plates. Concave and convex points are provided on the upper and lower plates, which is beneficial to its connection with the concrete.

[0039] The steel bar control devices and the mesh control devices are arranged in a plum blossom shape on different layers of the roof, and the spacing between each steel bar control device or mesh control device is 800 - 1000 mm. The construction method for other layers of the roof structure is the conventional method.

Claims

1. A positive roof structure, which comprises a structural layer, a slope layer, an insulation layer, a leveling layer, a waterproof layer, an isolation layer and a protective layer from bottom to top, characterized in that: The protective layer uses lightning protection ring nets as partitions to divide the construction areas and pour fine stone concrete. Each area is independently arranged with steel meshes, which are fixed to the mesh control devices; the steel bars in the structural layer are fixed to the steel control devices.

2. The upright roof structure according to claim 1, characterized in that: The lightning protection ring net comprises flat steels (5) connected in a grid manner and elastic rubbers (6) arranged on both sides of the flat steels (5); the vertical and horizontal intersections of the lightning protection ring net are arc-shaped diamond-shaped welded flats, and elastic rubbers are arranged on both sides of the diamond-shaped welded flats.

3. The upright roof structure according to claim 1, characterized in that: The steel bar control device comprises upper and lower supporting plates (4) connected by steel bars, the supporting plates (4) being provided with through holes, and cross-shaped transverse steel bars (1) and longitudinal steel bars (2) being provided between the upper and lower supporting plates, and the transverse steel bars (1) and longitudinal steel bars (2) are fixed through the through holes and the supporting plates (4) by means of binding wires (3).

4. The upright roof structure according to claim 3, characterized in that: The support plate (4) is slightly arc-shaped, and the upper and lower support plates (4) are symmetrically arranged.

5. The upright roof structure according to claim 1, characterized in that: The mesh control device comprises a base (9), and a tray (8) arranged above the base (9) and connected by support rods, wherein the tray (8) comprises an upper and lower plate, and the steel mesh (7) is fixed between the upper and lower plates.

6. The upright roof structure according to claim 5, characterized in that: The upper and lower plates are connected by steel bars, and both the upper and lower plates are provided with concave and convex points.

7. A positive roof structure according to any one of claims 3 to 6, characterized in that: The steel bar control devices and mesh control devices are arranged in a plum blossom shape at different layers of the roof, and the spacing between each steel bar control device or mesh control device is 800-1000mm.

8. The upright roof structure according to claim 1, characterized in that: The insulation board in the insulation layer is a long panel with teeth grooves on the bottom surface. The cross section of the teeth grooves is a plurality of connected trapezoids. The teeth grooves of the insulation board are bonded to concrete.

9. The upright roof structure according to claim 2, characterized in that: The flat steel (5) of the lightning protection ring net is made of 40*4mm galvanized flat steel, and the elastic rubber (6) includes elastic EPDM. The thickness of the elastic rubber on both sides of the flat steel of the lightning protection ring net is 8-12mm, and the thickness of the elastic rubber on both sides of the diamond welded flat steel is 20mm.

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