Large-gradient antique roof structure and construction method thereof

Abstract

The invention provides a large-gradient antique roof structure and a construction method thereof, and relates to the field of roof structures.The large-gradient antique roof structure comprises a concrete roof panel, a plurality of anchor bars are pre-buried in the concrete roof panel, and a heat preservation layer, a cement mortar leveling layer, two waterproof layers and an isolation layer are sequentially laid on the concrete roof panel in the upward direction; a reinforcing mesh is arranged on the isolation layer and welded to anchor bars, reinforcing bars are welded to the anchor bars, close to the cornice, of the anchor bars, fine aggregate concrete is poured on the isolation layer to form a nail holding layer, the anchor bars extend into the nail holding layer by a certain length, a plurality of counter battens are installed above the nail holding layer, and a plurality of roof battens are installed on the counter battens. Block tiles are installed on the roof battens, the block tiles at the cornice are further connected to the roof battens and the reinforcing ribs through pressing pieces, the block tiles are prevented from floating upwards under the action of wind suction force through meshing of the lap joint points, prestress of the reinforcing ribs and the anchor ribs is transmitted to the block tiles, and the firmness of the block tiles is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of roofing structures, in particular to a large slope pseudo-traditional roof structure and a construction method thereof. BACKGROUND

[0002] The large slope pseudo-traditional roof is a roof form with traditional architectural style, which is usually applied in pseudo-traditional buildings, landscape gardens and cultural buildings. Its feature is that the roof slope is relatively steep, generally above 45 degrees, which can effectively drain water and exhibit visual aesthetics of flying eaves, raised corners and clear levels. The large slope pseudo-traditional roof not only inherits the artistic essence of ancient buildings, but also embodies the innovation and integration of modern architectural technology.

[0003] High slope roofs (such as 45°-65°) are prone to strong wind suction (negative pressure) in the leeward area, especially under oblique wind (45° wind direction), the wind suction of the roof corner and eave can be increased by more than 200%, which can cause the tiles to be "sucked" up or fall off. The steep slope roof is prone to wind vibration and fatigue effect, and repeated alternating stress can weaken the connection strength of the tiles and the fixing parts, which can easily cause loosening or fracture after long-term use. The eave is the area where wind pressure is most concentrated, and the risk of wind lifting is high. Therefore, the tiles at the eave are prone to loosening or falling off due to various external forces.

[0004] Therefore, it is necessary to provide a new large slope pseudo-traditional roof structure and a construction method thereof to solve the above technical problems. SUMMARY

[0005] To solve the above technical problems, the present application provides a large slope pseudo-traditional roof structure and a construction method thereof.

[0006] The large slope pseudo-traditional roof structure provided by the present application comprises a concrete roof panel, a plurality of anchor bars are pre-buried in the concrete roof panel, a thermal insulation layer, a cement mortar leveling layer, two waterproof layers and an isolation layer are sequentially laid on the concrete roof panel in the upward direction, a steel mesh is arranged on the isolation layer, the steel mesh is welded with the anchor bars, a reinforcing bar is welded on the anchor bars near the eave among the plurality of anchor bars, fine aggregate concrete is poured on the isolation layer to form a nail-holding layer, the anchor bars extend into the nail-holding layer by a certain length, a plurality of water-following strips are installed above the nail-holding layer, a plurality of tile hanging strips are installed on the plurality of water-following strips, a tile is installed on the tile hanging strip, and the tile at the eave is further connected to the tile hanging strip and the reinforcing bar through a pressing piece. The pressing component includes a snap-on plate, a connecting plate, a tension plate, a first fastener, and a second fastener. The snap-on plate has an L-shaped structure, which includes a long arm and a short arm. The end of the long arm of the snap-on plate is bent upward at a 90-degree angle. The long arm of the snap-on plate is placed at the bottom of the tile strip. The end of the short arm of the snap-on plate is fixedly connected to the connecting plate. One end of the tension plate is fixed to the connecting plate. The first fastener and the second fastener are sleeved on the tension plate. The end of the first fastener can be locked in the tile groove at the edge of the tile. The first fastener is used to pull down the tile. The end of the second fastener can be locked on the reinforcing rib. The second fastener is used to pull up the reinforcing rib.

[0007] Preferably, the first fastener and the second fastener have the same structure. The first fastener includes a buckle plate and a sleeve plate. The buckle plate and the sleeve plate are fixedly connected and are perpendicular to each other at 90 degrees. The end of the buckle plate away from the sleeve plate is bent at 90 degrees toward the sleeve plate. The center of the sleeve plate is recessed toward the end away from the buckle plate. Two insertion holes for the tension plate to pass through are provided in the recess of the sleeve plate.

[0008] Preferably, the reinforcing bar includes a steel bar and an L-shaped fastener, with one end of the steel bar welded to the anchor bar and the other end of the steel bar welded to the L-shaped fastener.

[0009] Preferably, the length of the anchor bar extending into the nail-holding layer reaches 25mm.

[0010] Preferably, the end of the anchor bar placed in the concrete roof slab is bent at 90°, the anchor bar is Φ10mm, and the spacing between multiple anchor bars is 900mm×900mm.

[0011] Preferably, the insulation layer is a 100mm thick extruded polystyrene board, the cement mortar leveling layer is 20mm thick, the waterproof layer is a 3mm thick SBS modified bitumen waterproof membrane, the isolation layer is a polyethylene film, the spacing between the reinforcing bars in the steel mesh is 100×100mm, the thickness of the nail-holding layer is 30mm, and the fine aggregate concrete is C20 fine aggregate concrete.

[0012] Preferably, multiple copper nails with gaskets penetrate the two layers of SBS modified bitumen waterproof membrane, and the two layers of SBS modified bitumen waterproof membrane are fixed to the leveling layer by the multiple copper nails, and the nail heads are coated with waterproof coating.

[0013] Preferably, the insulation layer is provided with a plurality of barbed anchors, which penetrate the leveling layer to fix the insulation board, and the spacing between the anchor points is ≤1200mm.

[0014] A construction method for a steeply sloped antique-style roof structure, based on the aforementioned steeply sloped antique-style roof structure, includes the following steps: S1: Concrete roof slabs are cast using reinforced concrete, and multiple anchor bars are inserted into the uncured concrete roof slabs. S2: Lay an insulation layer on the concrete roof slab; S3: Lay a cement mortar leveling layer on the insulation layer; S4: Lay two layers of waterproofing on the leveling layer; S5: Lay an isolation layer on the waterproof layer, weld the steel mesh to the anchor bars, weld reinforcing bars to the anchor bars near the eaves, and pour fine stone concrete on the isolation layer to form a nail-holding layer. S6: Install multiple water-retaining strips on the nail-holding layer; S7: Install multiple batten strips onto multiple runner strips, and install tile strips onto the batten strips; S8: Use pressing clips to reinforce the tiles at the eaves; The method of reinforcing the eaves tiles with pressing parts includes the following steps: S901: Place the long arm of the fastener plate at the bottom of the batten strip; S902: The first fastener is fitted onto the tension plate, and the end of the first fastener is locked in the tile groove at the edge of the tile; S903: After the tension plate passes around the first fastener, bend it downwards. After bending it at a certain angle, put the second fastener on the tension plate and continue to bend the tension plate downwards. When the tension plate is bent to 180 degrees, move the second fastener upwards so that one end of the second fastener is locked on the reinforcing rib. Then bend the tension plate that passes around the second fastener upwards by 180 degrees.

[0015] Preferably, the use of reinforced concrete pouring includes the following steps: S801. Concrete shall be poured in sections along the slope, with each section ≤6m in length. S802. Use a vibrator to vibrate evenly. S803, cover with plastic film and straw mat for moisture retention and maintenance, maintenance period ≥7 days.

[0016] Compared with related technologies, the steep slope antique-style roof structure and its construction method provided by this invention have the following beneficial effects: 1. This invention reinforces the eaves tiles with pressing components, effectively improving the stability of the ridge tiles. When using the pressing components, the interlocking plate applies an upward pulling force to the batten, the first fastener applies a downward force to the tile, and the second fastener applies an upward force to the reinforcing rib. Essentially, the forces applied by the second fastener to the reinforcing rib and the upward force applied by the interlocking plate to the batten are all used to press the tile, thereby strengthening its stability. A mechanical interlock is formed between the various overlapping points, preventing the tile from floating under wind suction. The prestress of the reinforcing bars and anchor bars is transferred to the tile, forming a "self-balancing force system". The downward pull (tile) and the upward pull (reinforcing bar) form a shear force counteraction on the tension plate, reducing the risk of fatigue failure of the connectors. The bidirectional tension structure formed by the snap fastener, tension plate and double fasteners effectively disperses and resists the moment of tile sliding, improving the overall stability. The tension plate forms a 180° tension ring through two bends. With the help of the first fastener and the second fastener, the tile is firmly fixed to the ridge area through the tension of the tension plate, effectively resisting external forces.

[0017] 2. The anchor bar extends 25mm into the nail-holding layer. This 25mm extension ensures an integral connection between the anchor bar and the nail-holding layer, enhancing the overall integrity of the roof structure. The ends of the anchor bars placed in the concrete roof slab are bent at 90° to avoid concentrated stress at a single point, improving load-bearing capacity. The extruded polystyrene board can effectively withstand construction loads and the weight of the upper leveling layer and waterproof layer, and is not easily deformed or cracked. The isolation layer is a polyethylene film, which is corrosion-resistant and does not react with the waterproof layer, making the material less prone to aging. The polyethylene film has good waterproof and moisture-proof effects. The steel mesh can evenly distribute stress, significantly reducing the risk of cracking in the nail-holding layer and reinforcing it. Attached Figure Description

[0018] Figure 1 A schematic diagram of the steep slope antique-style roof structure provided by the present invention; Figure 2 for Figure 1 The diagram shows the structure of the pressing component connecting to the tile. Figure 1 ; Figure 3 for Figure 1 The diagram shows the structure of the pressing component connecting to the tile. Figure 2 ; Figure 4 for Figure 2 The diagram shows the structure when the pressing component is connected to the reinforcing rib.

[0019] The following are the labeling elements in the diagram: 1. Concrete roof slab; 2. Anchor bar; 3. Insulation layer; 4. Cement mortar leveling layer; 5. Waterproof layer; 6. Isolation layer; 7. Steel mesh; 8. Copper nail; 9. Nail-holding layer; 10. Water-guiding strip; 11. Batten strip; 12. Overlapping plate; 13. Connecting plate; 14. Tension plate; 15. Tile channel; 16. Clasp; 17. Sleeve; 18. Insert hole; 19. Steel strip; 20. L-shaped bracket; 21. Tile. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figures 1-4 ,in, Figure 1 A schematic diagram of the steep slope antique-style roof structure provided by the present invention; Figure 2 for Figure 1 The diagram shows the structure of the pressing component connecting to the tile. Figure 1 ; Figure 3 for Figure 1 The diagram shows the structure of the pressing component connecting to the tile. Figure 2 ; Figure 4 for Figure 2 The diagram shows the structure when the pressing component is connected to the reinforcing rib.

[0022] In the specific implementation process, a large-slope antique-style roof structure includes a concrete roof panel 1, with multiple anchor bars 2 pre-embedded in the concrete roof panel 1. The concrete roof panel 1 is laid with an insulation layer 3, a cement mortar leveling layer 4, two waterproof layers 5 and an isolation layer 6 in sequence along the upward direction. A steel mesh 7 is set on the isolation layer 6. The steel mesh 7 is welded to the anchor bars 2. Among the multiple anchor bars 2, the anchor bars 2 near the eaves are welded with reinforcing bars. Fine stone concrete is poured on the isolation layer 6 to form a nail-holding layer 9. The anchor bars 2 extend into the nail-holding layer 9 for a certain length. Multiple water-following strips 10 are installed above the nail-holding layer 9. Multiple tile strips 11 are installed on the multiple water-following strips 10. Tiles 21 are installed on the tile strips 11. The tiles 21 at the eaves are also connected to the tile strips 11 and the reinforcing bars by pressing parts. The pressing components include a snap-on plate 12, a connecting plate 13, a tension plate 14, a first fastener, and a second fastener. The snap-on plate 12 has an L-shaped structure, which includes a long arm and a short arm. The end of the long arm of the snap-on plate 12 is bent upward at a 90-degree angle. The long arm of the snap-on plate 12 is placed at the bottom of the batten strip 11. The end of the short arm of the snap-on plate 12 is fixedly connected to the connecting plate 13. One end of the tension plate 14 is fixed to the connecting plate 13. The first fastener and the second fastener are fitted on the tension plate 14. The end of the first fastener can be locked in the tile groove 15 at the edge of the tile 21. The first fastener is used to pull down the tile 21. The end of the second fastener can be locked on the reinforcing rib. The second fastener is used to pull up the reinforcing rib. The first fastener has the same structure as the second fastener. The first fastener includes a fastener plate 16 and a sleeve plate 17. The fastener plate 16 and the sleeve plate 17 are fixedly connected and are perpendicular to each other at a 90-degree angle. The end of the fastener plate 16 away from the sleeve plate 17 is bent at a 90-degree angle toward the sleeve plate 17. The center of the sleeve plate 17 is recessed toward the end away from the fastener plate 16. Two insertion holes 18 for the tension plate 14 to pass through are provided in the recess of the sleeve plate 17. The reinforcing bar includes a steel bar 19 and an L-shaped fastener frame 20. One end of the steel bar 19 is welded to the anchor bar 2, and the other end of the steel bar 19 is welded to the L-shaped fastener frame 20. This invention reinforces the tile 21 at the eaves by pressing it, effectively improving the firmness of the tile 21 at the ridge. When using the pressing part, the fastener plate 12 applies an upward force to the tile strip 11. The first fastener applies a downward force to the tile 21, and the second fastener applies an upward force to the reinforcing rib. This is equivalent to the force applied by the second fastener to the reinforcing rib and the upward force applied by the latch plate 12 to the batten strip 11, all of which are used to press the tile 21, thereby strengthening the stability of the tile 21. Mechanical interlocking is formed between each joint point to prevent the tile 21 from floating under the action of wind suction. The prestress of the reinforcing rib and the anchor bar 2 is transferred to the tile 21 to form a "self-balancing force system". The downward pull (tile 21) and the upward pull (reinforcing rib) form a shear force counteracting force on the tension plate 14, reducing the risk of fatigue failure of the connector. The "two-way tension system" formed by the latch plate 12, tension plate 14 and double fasteners effectively disperses and resists the moment of tile sliding, improving the overall stability. The anchor bar 2 extends 25mm into the nail-holding layer 9. This 25mm extension ensures an integral connection between the anchor bar 2 and the nail-holding layer 9, enhancing the overall integrity of the roof structure. The end of the anchor bar 2 placed in the concrete roof slab 1 is bent at 90°. The anchor bar 2 is Φ10mm, and the spacing between multiple anchor bars 2 is 900mm×900mm. This 900×900mm spacing balances structural stability and economy in steep roof slopes, avoiding local stress concentration. The insulation layer 3 is a 100mm thick extruded polystyrene board. The thermal conductivity of extruded polystyrene board (XPS) is ≤0.030W / (m·K). The 100mm thickness effectively blocks heat exchange between the inside and outside of the roof, reducing building energy consumption. The XPS board has a compressive strength ≥250kPa, capable of withstanding construction loads and the weight of the upper leveling layer and waterproof layer 5, and is not prone to deformation or cracking. The thickness of the cement mortar leveling layer 4 is 2... The 0mm thick cement mortar leveling layer 4 effectively corrects unevenness of the base layer, providing a uniform base surface for the subsequent waterproof layer 5. The waterproof layer 5 is a 3mm thick SBS modified bitumen waterproof membrane. The SBS membrane has excellent tensile strength (≥800MPa) and elongation (≥40%), adapts to base deformation (such as temperature changes and structural settlement), and prevents cracking. The isolation layer 6 is a polyethylene film. The polyethylene film is corrosion-resistant and does not react with the waterproof layer 5, making the material less prone to aging. The steel mesh 7 has a steel bar spacing of 100×100mm. The 100×100mm spacing of the steel mesh 7 can evenly distribute stress, significantly reducing the risk of cracking of the nail holding layer 9 and reinforcing the nail holding layer 9. The thickness of the nail holding layer 9 is 30mm. The fine stone concrete is C20 fine stone concrete. Fine stone concrete has good fluidity and can be quickly poured and cured, shortening the construction period. Multiple copper nails 8 with gaskets penetrate the two layers of SBS modified bitumen waterproof membrane. The two layers of SBS modified bitumen waterproof membrane are fixed to the leveling layer by the multiple copper nails 8. The nail heads of the copper nails 8 are coated with waterproof paint. The multiple copper nails 8 ensure a firm mechanical connection between the waterproof membrane and the leveling layer, preventing the membrane from shifting or falling off due to wind or external forces. Multiple barbed anchors are provided on the insulation layer 3. These barbed anchors penetrate the leveling layer to fix the insulation board. The spacing between anchor points is ≤1200mm. The barbed structure increases the mechanical interlocking force between the anchors and the insulation board, effectively preventing the insulation board from slipping or falling off due to wind pressure or vibration. In addition, the barbs can disperse the anchoring force, avoid single-point force concentration, and significantly improve the pull-out bearing capacity of the anchors. A construction method for a steeply sloped antique-style roof structure, based on the aforementioned steeply sloped antique-style roof structure, includes the following steps: S1: Concrete roof slab 1 is cast using reinforced concrete, and multiple anchor bars 2 are inserted into the uncured concrete roof slab 1. S2: Lay the insulation layer 3 on the concrete roof slab 1; S3: Lay a 1:2.5 cement mortar leveling layer 4 on the insulation layer 3; S4: Lay two layers of waterproofing on the leveling layer; S5: Lay an isolation layer 6 on the waterproof layer 5. To improve the firmness, apply glue between the waterproof layer 5 and the isolation layer 6. Weld the steel mesh 7 to the anchor bar 2. Weld reinforcing bars to the anchor bar 2 near the eaves. Pour fine stone concrete on the isolation layer 6 to form a nail-holding layer 9. S6: Install multiple water-following strips 10 onto the nail-holding layer 9; S7: Install multiple batten strips 11 onto multiple water-following strips 10, and install tile 21 onto the batten strips 11 using fastening nails; S8: Use pressing parts to reinforce the tile 21 at the eaves; The reinforcement of the eaves tile 21 using pressing fittings includes the following steps: S901: Place the long arm of the latch plate 12 at the bottom of the batten strip 11; S902: The first fastener is fitted onto the tension plate 14, and the end of the first fastener is locked in the tile groove 15 at the edge of the tile 21; S903: After the tension plate 14 passes around the first fastener, it is bent downwards. After bending at a certain angle (30-160 degrees), the second fastener is put on the tension plate 14. The tension plate 14 continues to bend downwards. When the tension plate 14 is bent to 180 degrees, the second fastener is moved upwards so that one end of the second fastener is locked on the reinforcing rib. Then the tension plate 14 that passes around the second fastener is bent upwards by 180 degrees. The tension plate 14 forms a 180° tension ring through two bends. The first fastener (fixing the tile groove 15) and the second fastener (fixing the reinforcing rib) achieve "two-way locking". This structure firmly fixes the tile 21 to the ridge area through the tensioning effect of the tension plate 14, effectively resisting external forces. The process of pouring reinforced concrete includes the following steps: S801. Concrete is poured in sections along the slope direction, with each section ≤ 6m in length. When pouring concrete on a steep roof, the concrete is prone to slide down the slope due to its own weight. By limiting the length of each section to within 6m, the unrestrained flow of concrete can be effectively blocked, preventing local collapse or uneven slab thickness. S802. Using a vibrator for uniform compaction and segmented operation reduces the scope of a single pouring, making it easier for operators to concentrate on compaction and leveling. S803, cover with plastic film and straw mat for moisture retention and curing, with a curing period of ≥7 days. Moisture retention and curing allow the cement hydration reaction to proceed fully, which to a certain extent improves the compressive strength.

[0023] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A steep-dome-like building surface structure, characterized by, The utility model provides a concrete roof panel (1), a plurality of anchor bars (2) are embedded in the concrete roof panel (1), the concrete roof panel (1) is sequentially laid with insulation layer (3), cement mortar leveling layer (4), two waterproof layers (5) and isolation layer (6) along the upward direction, the isolation layer (6) is provided with reinforcing mesh (7), reinforcing mesh (7) is welded with anchor bar (2), the anchor bar (2) of a plurality of anchor bars (2) near the eaves is welded with reinforcing bar, pours the fine stone concrete on the isolation layer (6) and forms the nail holding layer (9), anchor bar (2) reaches a certain length in the nail holding layer (9), a plurality of water following strips (10) are installed above the nail holding layer (9), a plurality of batten (11) are installed on a plurality of water following strips (10), and block tile (21) is installed on batten (11), and block tile (21) at the eaves is also connected on batten (11) and reinforcing bar through pressing piece; The pressing piece includes a buckle plate (12), a connecting plate (13), a tension plate (14), a first buckle and a second buckle, the buckle plate (12) is L-shaped, including a long arm and a short arm, the end of the long arm of the buckle plate (12) is bent upward by 90 degrees, the long arm of the buckle plate (12) is placed at the bottom of the batten (11), the end of the short arm of the buckle plate (12) is fixedly connected with the connecting plate (13), one end of the tension plate (14) is fixed on the connecting plate (13), the first buckle and the second buckle are sleeved on the tension plate (14), the end of the first buckle can be clamped in the tile groove (15) at the edge of the block tile (21), the first buckle is used to pull down the block tile (21), the end of the second buckle can be clamped on the reinforcing bar, and the second buckle is used to pull up the reinforcing bar.

2. The steep-roofed, house-like structure according to claim 1, wherein The first buckle and the second buckle are the same structure, the first buckle includes a buckle plate (16) and a sleeve plate (17), the buckle plate (16) and the sleeve plate (17) are fixedly connected, and the buckle plate (16) and the sleeve plate (17) are connected perpendicularly by 90 degrees, one end of the buckle plate (16) away from the sleeve plate (17) is bent by 90 degrees towards the sleeve plate (17), the center of the sleeve plate (17) is recessed away from one end of the buckle plate (16), and two insertion holes (18) for the tension plate (14) are arranged in the recessed part of the sleeve plate (17).

3. The steep-roofed, house-like structure according to claim 2, wherein The reinforcing bar includes a steel bar (19) and an L-shaped buckle frame (20), one end of the steel bar (19) is welded on the anchor bar (2), and the other end of the steel bar (19) is welded with the L-shaped buckle frame (20).

4. The steep-roofed, house-shaped structure according to claim 1, wherein The length of the anchor bar (2) into the nail holding layer (9) reaches 25 mm.

5. The steep-roofed, house-like structure according to claim 1, wherein The end of the anchor bar (2) in the concrete roof panel (1) is bent by 90 degrees, the anchor bar (2) is Φ10 mm, and the spacing of the plurality of anchor bars (2) is 900 mm*900 mm.

6. The steep-roofed, house-like structure according to claim 1, wherein The thermal insulation layer (3) is 100mm thick extruded polystyrene board, the thickness of the cement mortar leveling layer (4) is 20mm, the waterproof layer (5) is 3mm thick modified asphalt waterproof roll material, the isolation layer (6) is polyethylene film, the spacing between the steel bars in the steel bar mesh (7) is 100x100mm, the pouring thickness of the nail holding layer (9) is 30mm, and the fine stone concrete is C20 fine stone concrete pouring.

7. The steep-roofed, house-like structure according to claim 6, characterized in that A plurality of copper nails (8) with washers are penetrated through the two layers of SBS modified asphalt waterproof roll material, and the two layers of SBS modified asphalt waterproof roll material are fixed to the leveling layer through the plurality of copper nails (8), and waterproof paint is applied at the nail caps of the copper nails (8).

8. The steep-roofed, house-shaped structure according to claim 1, wherein A plurality of anchor nails with barbs are arranged on the thermal insulation layer (3), and the plurality of anchor nails with barbs penetrate through the leveling layer to fix the thermal insulation board, and the spacing between the anchor points is ≤1200mm.

9. A method for constructing a large slope pseudo-roof structure based on the large slope pseudo-roof structure according to any one of claims 1 to 8, characterized by, The method comprises the following steps: S1: using steel reinforced concrete to pour a concrete roof panel (1), and inserting a plurality of anchor bars (2) into the un-solidified concrete roof panel (1); S2: laying a thermal insulation layer (3) on the concrete roof panel (1); S3: laying a cement mortar leveling layer (4) on the thermal insulation layer (3); S4: laying two layers of waterproof layer (5) on the leveling layer; S5: laying an isolation layer (6) on the waterproof layer (5), welding a steel bar mesh (7) with the anchor bars (2), welding a reinforcing bar on the anchor bars (2) near the eaves, and pouring fine stone concrete on the isolation layer (6) to form a nail holding layer (9); S6: installing a plurality of water following strips (10) on the nail holding layer (9); S7: installing a plurality of batten strips (11) on the plurality of water following strips (10), and installing a block tile (21) on the batten strip (11); S8: using a pressing piece to reinforce the block tile (21) at the eaves; The method for reinforcing the block tile (21) at the eaves using a pressing piece comprises the following steps: S901: placing the long arm of the buckle plate (12) at the bottom of the batten strip (11); S902: the first buckle is sleeved on the tension plate (14), and the end of the first buckle is clamped in the tile groove (15) at the edge of the block tile (21); S903: after the tension plate (14) passes the first buckle, it is bent downward, and after being bent by a certain angle, the second buckle is sleeved on the tension plate (14), and the tension plate (14) is continuously bent downward, and when the tension plate (14) is bent to 180 degrees, the second buckle is moved upward, one end of the second buckle is clamped on the reinforcing bar, and the tension plate (14) passing the second buckle is bent upward by 180 degrees.

10. The construction method of a large-gradient pseudo-roof structure according to claim 9, characterized in that, The method for pouring using steel reinforced concrete comprises the following steps: S801, pouring the concrete in sections along the slope direction, and the length of each section is ≤6m; S802, using a vibrating rod to uniformly vibrate; S803, covering plastic film and straw mat for moisture curing, and the curing period is ≥7 days.

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