Water diversion and lightning protection integrated stepped roof and installation method thereof

Abstract

According to the water diversion and lightning protection integrated stepped roof and the installation method thereof, the water drainage, lightning triggering and lightning receiving integrated design of a special-shaped pitched roof is achieved, and the situation that the visual effect of a building is damaged due to the exposed form is reduced. The building comprises a building main body and a plurality of roof units, wherein the plurality of roof units are arranged above the building main body in a staggered manner; the roof unit comprises a roof frame, and the roof frame is obliquely arranged on the upper surface of the building body. The drainage units are correspondingly arranged on the outer edges of the corresponding roof frames and used for draining rainwater; one end of the lightning protection unit is connected with the roof frame, the other end of the lightning protection unit is connected with the building main body, and the lightning protection unit is used for conducting lightning and receiving lightning; the rock plate unit is fixedly connected with the upper surface of the roof frame and is used for decorating an outer wall of a building; and the drainage unit and the lightning protection unit are arranged below the rock plate unit. The roof structure is applied to the technical field of roof structures.

Description

Technical Field

[0001] This invention relates to the technical field of roof structures, and in particular to a water-diverting and lightning-protecting integrated stepped roof and its installation method. Background Technology

[0002] Currently, steel structure pitched roofs commonly use open-type eaves gutter drainage systems, with exposed drainage risers, resulting in significant visual defects and affecting the aesthetics of the building facade. The eaves often employ open gutter designs, which easily accumulate fallen leaves, debris, bird nests, and other foreign objects, increasing the risk of blockages and making cleaning and maintenance difficult. In terms of lightning protection design, the conventional practice is to install exposed lightning conductors, whose exposed form disrupts the overall visual appeal of the building.

[0003] As the years of use increase, the sealing strips at the eaves are prone to aging and failure, and the connecting screws are prone to loosening or improper fixing, making this area a weak point in waterproofing and posing a significant risk of leakage later on. More importantly, the connection nodes between metal roofing panels are prone to loosening and lack of compaction due to environmental factors and over time, leading to a decline in the reliability of electrical connections. Under these conditions, a lightning strike may cause localized high voltage, endangering building safety and the normal operation of equipment. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an integrated design for drainage and lightning protection of irregular sloping roofs, reducing the damage to the visual effect of the building caused by exposed form, and an integrated water diversion and lightning protection stepped roof and its installation method.

[0005] The technical solution adopted in this invention is as follows: This invention includes a main building and several roof units, which are staggered and arranged above the main building; each roof unit includes a roof frame, which is inclinedly arranged on the upper surface of the main building; a drainage unit, which is correspondingly arranged on the outer edge of the corresponding roof frame for draining rainwater; a lightning protection unit, one end of which is connected to the roof frame and the other end of which is connected to the main building for attracting and receiving lightning; and a slab unit, which is fixedly connected to the upper surface of the roof frame for decorating the exterior wall of the building; both the drainage unit and the lightning protection unit are arranged below the slab unit, and a perforated plate for guiding rainwater is arranged between two adjacent slab units.

[0006] Furthermore, the drainage unit includes two water inlet channels and a downpipe. Each water inlet channel is correspondingly located at the edge of the roof frame. The ends of the two water inlet channels are connected. The downpipe is located at the junction of the two water inlet channels and is embedded in the vertical curtain wall facade structure of the building body.

[0007] Furthermore, the water intake channel is in the shape of a rectangular steel trough.

[0008] Furthermore, the lightning protection unit includes a lightning arrester and a lightning attractor. The lightning arrester is fixedly connected to the vertical curtain wall facade structure of the main building. A lightning arrester protrusion block of the same height as the rock slab unit is formed on the upper part of the lightning arrester. One end of the lightning attractor is fixedly connected to the lightning arrester, and the other end of the lightning attractor is fixedly connected to the roof frame.

[0009] Furthermore, the lightning arrester is made of stainless steel flat bar.

[0010] Furthermore, the slab unit includes several mounting brackets for the roof frame, several mounting components that are fixedly connected to the corresponding mounting brackets, a metal keel that is detachably connected between two mounting components, and a slab component bonded to the upper part of the mounting component. A clearance groove for rainwater to flow out is formed between two adjacent slab components.

[0011] Furthermore, the roof frame includes an installation frame fixedly connected to the main building for adjusting the tilt and height, a profiled steel sheet laid on top of the installation frame, an insulation layer bonded to the profiled steel sheet, and a waterproof membrane disposed on the upper surface of the insulation layer. The upper surface of the waterproof membrane is covered with a waterproof membrane, and one side of the waterproof membrane is fixedly connected to the drainage unit.

[0012] Furthermore, the installation method includes the following steps:

[0013] S1. Lay the roof frame and adjust the height and tilt angle of each roof frame;

[0014] S2. Install the drainage unit, and weld the water channel to the outer wall of the roof frame;

[0015] S3. Install the rock slab units, the vertical curtain wall facade structure and glass of the main building, and embed the downpipes into the shaped cavity of the vertical curtain wall facade structure of the main building and connect them to the water inlet channel.

[0016] S4. Install lightning protection units, with lightning arresters set at the connection between the rock slab unit and the vertical keel of the building structure to construct a conformal lightning conductor network. The two ends of the lightning arrester are connected to the lightning arrester and the roof frame, respectively.

[0017] S5. Lay a waterproof board on top of the roof frame insulation layer, and then lay waterproof membrane on the waterproof board to complete the integrated roof installation.

[0018] S6. Repeat steps S1-S5 until the staggered installation of the entire roof unit is completed.

[0019] Furthermore, in step S3, the curtain wall facade structure of the main building conducts electrical current downwards, and lightning conductors are used as lightning protection down conductors in non-steel structure locations. The grounding resistance of a single lightning conductor is no greater than 10Ω, and the grounding resistance of the entire lightning protection conductive path is no greater than 1 ohm.

[0020] The beneficial effects of this invention are as follows: Since the drainage unit and lightning protection unit are set inside the rock slab unit, the drainage unit forms a drainage ditch system on the back side of the rock slab, which guides the surface rainwater into the drainage channel. Each drainage unit is hydraulically connected through a downpipe system. The downpipe is embedded in the shaped cavity of the vertical curtain wall facade structure of the main building, so that the drainage functional components are visually concealed and the drainage riser system is completely embedded in the shaped cavity of the building facade, with an exposure interface elimination rate of ≥95%.

[0021] Based on the zoning of drainage units, 50×4mm lightning rods are laid along the boundary seams of each drainage unit to construct a conformal lightning conductor network. Electrical connection across units is achieved through 25×4mm lightning conductors. The visual intrusion scale of the crack-resistant unit, the rock slab unit, and the vertical curtain wall facade structure of the main building is ≤3mm (below the human eye recognition threshold). Attached Figure Description

[0022] Figure 1 This is a first structural schematic diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the second structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the roof frame structure of the present invention;

[0025] Figure 4 This is a top view of the roof unit of the present invention;

[0026] Figure 5 yes Figure 4 A magnified view of part A in the middle;

[0027] Figure 6 This is a schematic diagram of the drainage unit of the present invention;

[0028] Figure 7 This is a schematic diagram of the third structure of the present invention;

[0029] Figure 8 yes Figure 7 A magnified view of part B in the middle section;

[0030] Figure 9 yes Figure 7 A magnified view of part C in the middle;

[0031] Figure 10 This is a schematic diagram of the perforated plate of the present invention.

[0032] In the diagram: 1. Main building structure; 2. Roof unit; 21. Roof frame; 211. Mounting frame; 212. Corrugated steel sheet; 213. Insulation layer; 214. Waterproofing membrane; 22. Drainage unit; 221. Water channel; 222. Downpipe; 23. Lightning protection unit; 231. Lightning conductor; 232. Lightning attractor; 233. Lightning conductor extension block; 24. Slab unit; 241. Mounting bracket; 242. Mounting component; 243. Metal keel; 244. Slab component; 245. Clearance groove; 3. Perforated plate. Detailed Implementation

[0033] like Figures 1 to 10 As shown, in this embodiment, the present invention includes a building body 1 and several roof units 2, which are staggered above the building body 1. Each roof unit 2 includes a roof frame 21, which is inclinedly arranged on the upper surface of the building body 1; a drainage unit 22, which is correspondingly arranged on the outer edge of the corresponding roof frame 21 for draining rainwater; a lightning protection unit 23, one end of which is connected to the roof frame 21 and the other end of which is connected to the building body 1 for attracting and receiving lightning; and a slab unit 24, which is fixedly connected to the upper surface of the roof frame 21 for decorating the exterior wall of the building. The drainage unit 22 and the lightning protection unit 23 are both arranged below the slab unit 24, and a perforated plate 3 for guiding rainwater is arranged between two adjacent slab units 24.

[0034] Specifically, each roof unit 2 has a different height, and multiple roof units 2 fall from top to bottom according to the slope parameters of the pitched roof, so that the rainwater falling into the roof frame 21 is transported to the outside of the building layer by layer along the drainage channel and the downpipe 222 under its own weight.

[0035] Drainage unit 22 and lightning protection unit 23 are installed inside the rock slab unit 24. The drainage unit 22 forms a drainage ditch system on the back side of the rock slab, which guides the surface rainwater into the drainage channel. Each drainage unit 22 is hydraulically connected through the downpipe 222 system. The downpipe 222 is embedded in the shape cavity of the vertical curtain wall facade structure of the main building 1, so that the drainage functional components are visually concealed and the drainage riser system is completely embedded in the shape cavity of the building facade, with an exposure interface elimination rate of ≥95%.

[0036] Based on the partitioning of drainage unit 22, 50×4mm lightning rods 231 are laid along the boundary seam of each drainage unit 22 to construct a conformal lightning conductor network. Electrical connection across units is achieved through 25×4mm lightning rods 232. The visual intrusion scale of the crack prevention unit, the rock slab unit 24, and the vertical curtain wall facade structure of the main building 1 is ≤3mm, which is lower than the human eye recognition threshold.

[0037] In this embodiment, the drainage unit 22 includes two water inlet channels 221 and a downpipe 222. Each water inlet channel 221 is correspondingly disposed on the corresponding edge of the roof frame 21. The ends of the two water inlet channels 221 are connected. The downpipe 222 is disposed at the junction of the two water inlet channels 221. The downpipe 222 is embedded in the vertical curtain wall facade structure of the building body 1.

[0038] Specifically, the water inlet trough 221 is an open-top stainless steel water trough, and the downpipe 222 is a rectangular steel pipe. The outlet end of the downpipe 222 is connected to the water inlet trough 221 of another drainage unit 22, which is used to discharge rainwater layer by layer until the rainwater flows out to the main body of the building 1.

[0039] In this embodiment, the water inlet trough 221 is in the shape of a rectangular steel trough.

[0040] In this embodiment, the lightning protection unit 23 includes a lightning arrester 231 and a lightning attractor 232. The lightning arrester 231 is fixedly connected to the vertical curtain wall facade structure of the main building 1. A lightning arrester extension block 233 of the same height as the rock slab unit 24 is formed on the upper part of the lightning arrester 231. One end of the lightning attractor 232 is fixedly connected to the lightning arrester 231, and the other end of the lightning attractor 232 is fixedly connected to the roof frame 21.

[0041] Specifically, the lightning rod extension block 233 is a hot-dip galvanized flat steel connecting grate profile with a cross-section of not less than 5*20mm, and the lightning rod 232 is a 25*4mm vertical stainless steel flat steel. The lower end of the lightning rod 232 is welded and fixed to the vertical curtain wall facade structure of the main building 1. After welding, it is coated with epoxy zinc-rich primer and acrylic polyurethane topcoat for anti-corrosion treatment.

[0042] In this embodiment, the lightning arrester 232 is a stainless steel flat bar.

[0043] In this embodiment, the slab unit 24 includes several mounting brackets 241 that are fixedly connected to the roof frame 21, several mounting members 242 that are fixedly connected to the corresponding mounting brackets 241, a metal keel 243 that is detachably connected between two mounting members 242, and slab members 244 that are bonded to the upper part of the mounting members 242. A clearance groove 245 for rainwater to flow out is formed between two adjacent slab members 244.

[0044] Specifically, the mounting component is an aluminum alloy frame, and the middle part of the mounting component is connected to the metal keel by screws. The rock slab component is fixed to the mounting component by structural adhesive, and the size of the structural adhesive is 6x12mm.

[0045] In this embodiment, the roof frame 21 includes an installation frame 211 fixedly connected to the building body 1 for adjusting the tilt and height, a profiled steel sheet 212 laid on top of the installation frame 211, an insulation layer 213 bonded to the profiled steel sheet 212, and a waterproof membrane 214 disposed on the upper surface of the insulation layer 213. A waterproof membrane 215 is laid on the upper surface of the waterproof membrane 214, and one side of the waterproof membrane 214 is fixedly connected to the drainage unit 22.

[0046] Specifically, the thickness of the rock slab is selected as 12mm, the installation frame 211 is selected as 100x80x4mm steel square tube, the lightweight roof is selected as 0.8mm thick YX38 type galvanized profiled steel, and the insulation layer 213 can be selected as composite laminated foam glass insulation board with thermal conductivity of 0.043W / MK, density <120kg / m3, compressive strength ≥0.6MPa, and thermal shock resistance of 10 times. The thickness of the insulation layer 213 is preferably 120mm.

[0047] Waterproof membrane 214 is made of galvanized sheet and is used to prevent rainwater from dripping directly into the waterproof layer. Waterproof membrane 215 can be made of 4mm thick SBS modified bitumen waterproof membrane 215 rock chip protection + 2.0mm thick sprayed polyurea AB two-component waterproof system including primer and weather-resistant topcoat.

[0048] In this embodiment, the installation method includes the following steps:

[0049] S1. Lay the roof frame 21 and adjust the height and tilt angle of each roof frame 21;

[0050] S2. Install drainage unit 22, and weld water channel 221 to the outer wall of roof frame 21;

[0051] S3, Install the rock slab unit 24, the vertical curtain wall facade structure and glass of the main building 1, and the downpipe 222 is embedded in the shaped cavity of the vertical curtain wall facade structure of the main building 1 and connected to the water inlet trough 221.

[0052] S4. Install lightning protection unit 23, and lightning conductor 231 is set at the connection between rock slab unit 24 and vertical keel of building body 1 to construct a conformal lightning conductor network. The two ends of lightning conductor 232 are connected to lightning conductor 231 and roof frame 21 respectively.

[0053] S5. Lay a waterproof board 214 above the insulation layer 213 of the roof frame 21, and lay a waterproof membrane 215 on the waterproof board 214 to complete the integrated roof installation.

[0054] S6. Repeat steps S1-S5 until the staggered installation of the entire roof unit 2 is completed.

[0055] In this embodiment, in step S3, the curtain wall facade structure of the main building conducts electrical current downwards, and the lightning conductor 232 is used as the lightning protection down conductor in the non-steel structure position. The grounding resistance of a single lightning conductor 232 is not greater than 10Ω, and the grounding resistance of the entire lightning protection conductive path is not greater than 1 ohm.

[0056] Although the embodiments of the present invention are described with reference to actual solutions, they do not constitute a limitation on the meaning of the present invention. Modifications to the embodiments and combinations with other solutions based on this specification will be obvious to those skilled in the art.

Claims

1. A water diversion and lightning protection integrated stepped roof, comprising a building main body (1) and a plurality of roof units (2), characterized in that: A plurality of said roof units (2) are arranged above the building body (1); Said roof unit (2) comprises A roof frame (21) is arranged on the upper surface of the building body (1); A drainage unit (22) is arranged on the outer edge of the corresponding roof frame (21) to drain rainwater; A lightning protection unit (23) is connected to one end of the roof frame (21), and the other end is connected to the building body (1) to attract lightning and flash; A rock plate unit (24) is fixedly connected to the upper surface of the roof frame (21) to decorate the building exterior wall; Said drainage unit (22) and said lightning protection unit (23) are arranged below the rock plate unit (24), and a perforated plate (3) for guiding rainwater is arranged between two adjacent rock plate units (24).

2. The integrated water-diversion and lightning-protection stepped roof according to claim 1, characterized in that: Said drainage unit (22) comprises two water guide grooves (221) and a downspout (222), each said water guide groove (221) is arranged on the corresponding edge of the roof frame (21), the ends of the two water guide grooves (221) are connected, and the downspout (222) is arranged at the intersection of the two water guide grooves (221), and the downspout (222) is embedded in the vertical curtain wall facade structure of the building body (1).

3. The water-diverting and lightning-protection integrated stepped roof according to claim 2, characterized in that: Said water guide groove (221) is in the shape of a rectangular steel groove.

4. The integrated water-diversion and lightning-protection stepped roof according to claim 1, characterized in that: Said lightning protection unit (23) comprises a lightning arrester (231) and a lightning conductor (232), the lightning arrester (231) is fixedly connected to the vertical curtain wall facade structure of the building body (1), the upper part of the lightning arrester (231) forms a lightning arrester extension block (233) with the same height as the rock plate unit (24), one end of the lightning conductor (232) is fixedly connected to the lightning arrester (231), and the other end of the lightning conductor (232) is fixedly connected to the roof frame (21).

5. The integrated water-diversion and lightning-protection stepped roof according to claim 4, characterized in that: Said lightning conductor (232) is a stainless steel flat steel.

6. The integrated water-diversion and lightning-protection stepped roof according to claim 1, characterized in that: Said rock plate unit (24) comprises a plurality of mounting racks (241) of the roof frame (21), a plurality of mounting pieces (242) fixedly connected to the corresponding mounting racks (241), a metal furring (243) detachably connected between two said mounting pieces (242), and a rock plate piece (244) adhered to the upper part of the mounting piece (242), and a gap (245) is formed between two adjacent rock plate pieces (244) for rainwater to flow out.

7. The integrated water-diversion and lightning-protection stepped roof according to claim 1, characterized in that: The roof frame (21) comprises a mounting framework (211) fixedly connected with the building body (1) for adjusting inclination and height, a profiled steel sheet (212) laid above the mounting framework (211), a thermal insulation layer (213) bonded to the profiled steel sheet (212), and a waterproof board (214) arranged on the upper surface of the thermal insulation layer (213), wherein the upper surface of the waterproof board (214) is laid with a waterproof coiled material (215), and one side of the waterproof board (214) is fixedly connected with the drainage unit (22).

8. The installation method of the integrated water diversion and lightning protection stepped roof according to any one of claims 1-7, characterized in that, The installation method comprises the following steps: S1, laying the roof frame (21) and adjusting the height and inclination angle of each roof frame (21); S2, installing the drainage unit (22), and welding and fixing the water guide groove (221) to the outer side wall of the roof frame (21); S3, installing the rock plate unit (24), the vertical curtain wall facade structure of the building body (1) and the glass, embedding the downspout (222) in the modeling cavity of the vertical curtain wall facade structure of the building body (1) and connecting the water guide groove (221); S4, installing the lightning protection unit (23), arranging the lightning receptor (231) at the connection between the rock plate unit (24) and the vertical keel of the building body (1), constructing a profiled lightning receptor network, and connecting the two ends of the lightning receptor (232) to the lightning receptor (231) and the roof frame (21) respectively; S5, laying the waterproof board (214) above the thermal insulation layer (213) of the roof frame (21), and laying the waterproof coiled material (215) on the waterproof board (214), thereby completing the integrated installation of the roof; S6, repeating steps S1-S5 until the staggered installation of the entire roof unit (2) is completed.

9. The method of mounting of claim 8, wherein: In step S3, the curtain wall facade structure of the building body conducts electricity downward, the non-steel structure position uses the lightning receptor (232) as a lightning down lead, the single lightning receptor (232) has an earth resistance not greater than 10Ω, and the entire lightning protection conductive path has an earth resistance not greater than 1 ohm.

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