Three-slope roof concrete pouring and slope surface trowelling construction method

Abstract

The invention discloses a three-slope roof concrete pouring and slope surface trowelling construction method, and relates to the technical field of concrete pouring, the three-slope roof concrete pouring and slope surface trowelling construction method comprises a supporting column, supports are arranged on the left side and the right side of the supporting column, two rotating pipes are arranged at the positions, close to the top and the bottom, of the edge of the outer side of the supporting column in a sleeving mode, and connecting plates are fixedly connected to one sides of the rotating pipes; one side of each connecting plate is fixedly connected to the edge of the outer side of the adjacent support, fixing rings are arranged at the top and the bottom of each rotating pipe, the fixing rings are fixedly connected to the edge of the outer side of the supporting column, and two swing plates are arranged at the top of each support. Gliding during concrete pouring can be effectively prevented, an operator can stand on the wood board to work, and construction convenience and construction safety are guaranteed; after concrete pouring is completed, the wood plate can slide up and down, the concrete surface is flattened, the flatness of the concrete surface is effectively guaranteed, construction is convenient, and the construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring technology, specifically a method for pouring concrete and smoothing the slope of a three-sloped roof. Background Technology

[0002] In building design, for the sake of the building's aesthetic appearance, roofs are often designed with a three-sloped surface. During construction, the concrete, due to its fluidity, flows downwards during pouring, resulting in uneven concrete thickness and an uneven surface, which affects the quality of the concrete pouring. The construction of three-sloped concrete also presents challenges for workers' positioning, making the construction difficult and posing numerous safety hazards.

[0003] Therefore, a method for pouring and smoothing concrete on a three-sloped roof was invented to solve the problems of uneven concrete surface and uneven concrete thickness during the pouring of concrete on a three-sloped roof. This method uses small-diameter steel pipes welded into a movable support frame. The length of the support legs is consistent with the thickness of the concrete slab. After the reinforcement binding is inspected and accepted, the support frame is moved to the concrete pouring area, with the slope of the support frame matching the roof slope. Before pouring, formwork is laid at the bottom of the support frame, and then concrete is poured between the formwork on the slope and compacted. Formwork is then laid on the support frame, and concrete pouring continues. After the concrete pouring in the entire support area is completed, the support frame and formwork are moved to other areas to continue pouring concrete. This method ensures the safety of the concrete pouring process.

[0004] When constructing a sloping roof, the slope should have a certain gradient with the horizontal plane. During concrete pouring, due to its fluidity, the concrete will flow downwards, resulting in uneven concrete thickness and a rough surface, affecting the quality of the concrete pouring. Traditional sloping concrete pouring often uses baffles in sections to reduce concrete slippage, but this cannot completely prevent slippage, and the surface smoothness does not meet requirements. Therefore, a three-slope roof concrete pouring and slope smoothing method has been invented to solve the problems of sloping concrete pouring construction. This method adopts...

[0005] It is simple, easy to operate, and can solve the problems of concrete slippage during pouring on slopes and difficulties in operation on three slopes, while meeting the requirements for surface flatness. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the purpose of this invention is to provide a method for concrete pouring and slope smoothing of a three-sloped roof.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a three-sided slope roof concrete pouring method, comprising a support column, with brackets on both the left and right sides of the support column, and two rotating tubes fitted near the top and bottom of the outer edge of the support column, each rotating tube having a connecting plate fixedly connected to one side, and the connecting plate having one side fixedly connected to the outer edge of the adjacent bracket, each rotating tube having a fixing ring at the top and bottom, the fixing ring being fixedly connected to the outer edge of the support column, each bracket having two swing plates at the top, each swing plate having a hinge on one side, the swing plates being movably connected to the top of the bracket via the hinges, and magnets fixedly connected to the corresponding sides of two adjacent swing plates, the two adjacent magnets being fitted together.

[0008] Preferably, the bracket has sliding grooves on both the left and right sides of its inner cavity, and a wooden board is provided in each inner cavity. Slider blocks are fixedly connected to both the left and right sides of the wooden board, and the sliders are movably connected to the inner cavities of adjacent sliding grooves. Several protruding plates are fixedly connected to the front side of each wooden board.

[0009] Preferably, the bottom of the support has through holes near the left and right sides, and a cylinder is installed through the inner cavity of each through hole. An L-shaped rod is fixedly connected to the bottom of each cylinder on both sides. The end of the L-shaped rod away from the cylinder is fixedly connected to the bottom of the support. A push plate is fixedly connected to the top of each cylinder, and the push plate is located at the bottom of the adjacent wooden board.

[0010] Preferably, two limiting plates are fixedly connected to the inner cavity of the bracket near the rear side. Several connecting columns are provided on the rear side of the bracket and the limiting plates. A spherical groove is opened at the top of the connecting column, and a movable ball is movably connected in the spherical groove. A fixed column is fixedly connected to the front side of the movable ball. The front end of the fixed column is fixedly connected to the rear side of the adjacent bracket and limiting plate. A threaded hole is opened at the bottom of the connecting column, and a threaded rod is threadedly connected in the threaded hole. A washer is fixedly connected to the bottom end of the threaded rod.

[0011] A method for smoothing the slope surface of a three-sloped roof concrete pouring project includes the following steps:

[0012] S1: Slope pretreatment: Leveling operation is carried out on the three-sided sloping roof surface to be poured concrete to ensure that the slope meets the design requirements.

[0013] S2: Frame fabrication: Based on the slope and geometric dimensions of the three-sided pitched roof, a steel frame that can rotate along the longitudinal axis is fabricated. The steel frame is made of welded steel pipes, and the steel pipes are firmly connected. The legs of the steel frame are equipped with a length adjustment structure so that the height of the legs can be consistent with the thickness of the concrete pouring.

[0014] S3: Plank preparation: Prepare several planks, each plank being 500mm wide and 50-100mm longer than the steel frame. The planks should have a preset thickness and load-bearing capacity, and have a smooth surface without any protrusions.

[0015] S4: Support positioning: Move the steel frame to the area to be poured concrete, adjust the angle between the two steel pipe supports by the rotating device on the steel frame so that the slope of the steel frame is consistent with the slope of the roof, and adjust the length of the legs by the length adjustment structure of the legs so that the length of the legs is consistent with the thickness of the concrete.

[0016] S5: Wooden plank laying: Lay a wooden plank at the bottom of the steel frame and adjust the level of the plank to meet the requirements of concrete pouring;

[0017] S6: Concrete pouring: Pour concrete between the slope and the laid wooden planks and vibrate it to make it compact. After the pouring of this area is completed, continue to lay the next wooden plank on the steel frame and repeat the pouring and vibration operation.

[0018] S7: Slope smoothing: During the concrete pouring process, the laid wooden boards are slid up and down along the slope to smooth the concrete surface.

[0019] S8: Sequential construction and scaffold removal: Complete the concrete pouring of the entire slope in sequence according to steps S5-S7. When the concrete fluidity decreases to the point where it no longer slides down, remove the steel frame and wooden planks.

[0020] Preferably, during concrete pouring in S6, workers stand on the laid wooden planks to perform pouring and vibration operations. In S6, the vibration operation uses a vibrator to compact the concrete to ensure that there are no air bubbles inside the concrete.

[0021] Preferably, in step S7, when the wooden board slides up and down to smooth the concrete surface, pressure is simultaneously applied to the wooden board to compact the concrete surface.

[0022] Preferably, after the slope in S1 is leveled, it needs to be inspected and accepted before proceeding to the support fabrication process in S2.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention forms a relatively sealed area through a support and wooden board, which can effectively prevent the concrete from sliding down during pouring. Workers can stand on the wooden board to work, ensuring convenient and safe construction.

[0025] After the concrete is poured, the wooden board can slide up and down to smooth the concrete surface, effectively ensuring the flatness of the concrete surface, making construction convenient and improving construction efficiency.

[0026] A threaded rod is added to the lower part of the connecting column. The extension length of the threaded rod is adjusted according to the thickness of the concrete lifting layer, so that the support can be widely adapted.

[0027] The two brackets can rotate in the middle. The angle of the brackets can be adjusted according to the included angle of the two sloping roofs to make them match. The brackets are widely applicable and highly versatile. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is an exploded view of the present invention;

[0030] Figure 3 This is a schematic diagram of the support column structure of the component of the present invention;

[0031] Figure 4 This is a schematic diagram of the support structure of the component of the present invention;

[0032] Figure 5 This is a schematic diagram of the magnet structure of the component of the present invention;

[0033] Figure 6 This is an exploded view of the connecting column of the component of the present invention;

[0034] Figure 7 This is a schematic diagram of the wooden board structure of the component of the present invention.

[0035] The following are the labels in the diagram: 1. Support column; 2. Bracket; 3. Swing plate; 4. Limiting plate; 5. Cylinder; 6. L-shaped rod; 7. Push plate; 8. Rotating tube; 9. Connecting plate; 10. Fixing ring; 11. Hinge; 12. Magnet; 13. Moving ball; 14. Fixing column; 15. Connecting column; 16. Threaded rod; 17. Washer; 18. Wooden board; 19. Slider; 20. Protruding plate; 21. Through hole; 22. Slide groove.

[0036] Example 1:

[0037] A concrete pouring method for a three-sided slope roof includes a support column 1. Supports 2 are provided on both the left and right sides of the support column 1. Two rotating tubes 8 are fitted onto the outer edges of the support column 1 near the top and bottom. A connecting plate 9 is fixedly connected to one side of each rotating tube 8. One side of the connecting plate 9 is fixedly connected to the outer edge of the adjacent support 2. Fixing rings 10 are provided at the top and bottom of each rotating tube 8 and are fixedly connected to the outer edge of the support column 1. Two swing plates 3 are provided at the top of each support 2. A hinge 11 is provided on one side of each swing plate 3. The swing plates 3 are movably connected to the top of the support 2 via the hinge 11. Magnets 12 are fixedly connected to the corresponding sides of two adjacent swing plates 3. The two adjacent magnets 12 are fitted together. Slide grooves 22 are provided on both the left and right sides of the inner cavity of the support 2. Wooden boards 18 are provided in the inner cavity of the support 2. Slider blocks 19 are fixedly connected to both the left and right sides of the wooden boards 18. The sliders 19 are movably connected to the inner cavity of the adjacent slide grooves 22. Several protruding plates 20 are fixedly connected to the front side of each wooden board 18.

[0038] The bottom of the bracket 2 has through holes 21 near the left and right sides. A cylinder 5 is installed through the cavity of each through hole 21. An L-shaped rod 6 is fixedly connected to the bottom of each cylinder 5 on both sides. The end of the L-shaped rod 6 away from the cylinder 5 is fixedly connected to the bottom of the bracket 2. A push plate 7 is fixedly connected to the top of each cylinder 5. The push plate 7 is located at the bottom of the adjacent wooden board 18. Two limiting plates 4 are fixedly connected to the rear side of the cavity of the bracket 2. Several connecting posts 15 are provided on the rear side of the bracket 2 and the limiting plates 4. A spherical groove is opened at the top of each connecting post 15. A movable ball 13 is movably connected in the spherical groove. A fixed post 14 is fixedly connected to the front side of each movable ball 13. The front end of the fixed post 14 is fixedly connected to the rear side of the adjacent bracket 2 and the limiting plate 4. A threaded hole is opened at the bottom of each connecting post 15. A threaded rod 16 is threadedly connected in the threaded hole. A washer 17 is fixedly connected to the bottom of each threaded rod 16.

[0039] A method for smoothing the slope surface of a three-sloped roof concrete pouring project includes the following steps:

[0040] S1: Slope pretreatment: Leveling operation is carried out on the three-sided sloping roof surface to be poured concrete to ensure that the slope meets the design requirements.

[0041] S2: Frame 2 fabrication: Based on the slope and geometric dimensions of the three-sided pitched roof, a steel frame that can rotate along the longitudinal axis is fabricated. The steel frame is made of welded steel pipes, and the steel pipes are firmly connected. The legs of the steel frame are equipped with a length adjustment structure so that the height of the legs can be consistent with the thickness of the concrete pouring.

[0042] S3: Preparation of plank 18: Prepare several planks 18. The width of plank 18 is 500mm. The length of plank 18 is 50-100mm larger than the width of the steel frame. Plank 18 has a preset thickness and load-bearing capacity and a smooth surface without protrusions.

[0043] S4: Positioning of support 2: Move the steel frame to the area to be poured concrete, adjust the included angle between the two steel pipe supports 2 by the rotating device on the steel frame so that the slope of the steel frame is consistent with the slope of the roof, and adjust the length of the support legs by the length adjustment structure of the support legs so that the length of the support legs is consistent with the thickness of the concrete.

[0044] S5: Laying a wooden plank 18: Lay a wooden plank 18 at the lower end of the steel frame and adjust the level of the wooden plank 18 to meet the requirements for concrete pouring.

[0045] S6: Concrete pouring: Pour concrete between the slope and the laid wooden plank 18 and vibrate it to make it compact. After the pouring of this area is completed, continue to lay the next wooden plank 18 on the steel frame and repeat the pouring and vibration operation.

[0046] S7: Slope smoothing: During the concrete pouring process, the laid wooden planks 18 are slid up and down along the slope to smooth the concrete surface.

[0047] S8: Sequential construction and removal of support 2: Complete the concrete pouring of the entire slope in sequence according to the operations of steps S5-S7. When the concrete fluidity decreases to the point where it no longer slides down, remove the steel frame and wooden planks 18.

[0048] During concrete pouring in S6, workers stand on the laid wooden planks 18 to perform pouring and vibration operations. In S6, the vibration operation uses a vibrator to compact the concrete to ensure that there are no air bubbles inside the concrete. In S7, when the wooden planks 18 slide up and down to smooth the concrete surface, pressure is applied to the wooden planks 18 simultaneously to compact the concrete surface. After the slope is leveled in S1, it needs to be inspected. Only after the inspection is passed can the support 2 fabrication process in S2 proceed.

[0049] Example 2: Construction of Concrete Pouring and Slope Leveling for a Three-Story, Three-Sloped Roof of a Residential Building I. Project Background and Parameters

[0050] This embodiment focuses on a three-story residential roof (three-sloped structure) designed for non-accessible use. Specific parameters are as follows:

[0051] Slope parameters: The slopes of the two side slopes are 25° and 30° respectively, the slope of the front slope is 28°, the three slopes intersect at the roof ridge line, the slope length is 15m and the width of a single slope is 8m;

[0052] Concrete parameters: Design strength grade C25, impermeability grade P6 (to prevent roof leakage), pouring thickness 120mm;

[0053] Construction environment: normal temperature (25±3℃), no rainfall, wind force ≤3 (meeting the meteorological requirements for open-air concrete pouring).

[0054] II. Selection and Optimization of Core Components (Based on Actual Construction Standards)

[0055] Based on the original invention structure, and considering the ease of construction and cost control in civil buildings, the key aspects are...

[0056] Component selection is detailed (Table 1):

[0057]

[0058] III. Detailed Construction Steps (Based on Actual Operation Scenario)

[0059] S1: Slope pretreatment (enhancing base course quality control)

[0060] 1. Base cleaning: First, use a wire brush to remove residual mortar and dust from the surface of the roof base (precast reinforced concrete slab), then rinse with a high-pressure water gun, and after drying, check for cracks in the base (cracks wider than 0.3mm should be repaired with epoxy resin grouting).

[0061] 2. Slope leveling: Use a 2m straightedge and cement leveling mortar (strength M15) to level the slope, controlling the flatness error of the slope to ≤3mm / 2m; after leveling, sprinkle water to moisten the base layer (wetting depth ≥5mm, to avoid the base layer absorbing water and causing the concrete to lose water and crack).

[0062] 3. Acceptance standards: The supervision unit shall use a slope meter to verify the slope of the slope (25°, 30°, 28° error ≤ 1°), and use a 2m straightedge to check the flatness. Only after the acceptance is qualified and the "Slope Base Acceptance Record" is signed can the next process be carried out.

[0063] S2: Scaffold fabrication (compliant with construction standards)

[0064] 1. Steel frame fabrication: Fabricate 3 sets of supports according to the roof dimensions (each set covers 5m of slope length). Steel pipe welding adopts carbon dioxide gas shielded welding, and the weld leg height is ≥6mm. After welding, remove the welding slag and apply anti-rust paint (one coat of red lead primer and one coat of topcoat).

[0065] 2. Rotation device debugging: Install the rotating tube (Φ108×4mm) on the support column (Φ89×5mm steel pipe), fully weld the rotating tube to the connecting plate (10mm thick steel plate), and debug the rotation flexibility (rotation resistance ≤50N). Finally, install the fixing ring (Φ108×6mm, with stop bolt) to lock the angle.

[0066] S3: Wooden board preparation (pre-treatment)

[0067] 1. Wood board cutting: Cut plywood to a length of 8.8m, and grind the edges of the board with a sander after cutting (to avoid burrs scratching the concrete surface);

[0068] 2. Waterproofing treatment: Apply 20mm wide butyl waterproof tape to the joints of the wooden boards (to prevent cement slurry leakage during pouring), and evenly apply one coat of water-based release agent to the surface (coat thickness 0.1mm, use after drying for 2 hours).

[0069] S4: Bracket Positioning (Precisely Adapts to Slopes)

[0070] 1. Frame handling and placement: Use a tower crane (model QTZ63) to lift the frame to the roof and place it at 5m intervals (3 sets of frames cover 15m slope) to avoid the frame directly pressing on the steel bars;

[0071] 2. Angle and height adjustment:

[0072] Adjust the angle between the two brackets: For 25° and 30° slopes, adjust the angle between the brackets to 125° (180°-25°-30°), check with an angle gauge, and then lock the fixing ring;

[0073] Adjusting the length of the outriggers: Pull out the inner sleeve to 120mm (consistent with the thickness of the concrete), insert the positioning pin, and use a level to calibrate the top surface of the support to be level (error ≤ 2mm);

[0074] Leveling the base: If there are gaps at the bottom of the support, fill them with M15 cement mortar (5-20mm thick) to ensure that the legs are evenly stressed.

[0075] S5: Laying wooden planks (ensuring operational safety)

[0076] 1. Sliding track inspection: Clean the debris in the bracket slide groove (22), apply a small amount of lubricating oil (lithium-based grease) to ensure that the slider (19) slides smoothly;

[0077] 2. Wood panel installation: Two workers work together to insert the wood panels by aligning the sliders on both sides with the grooves and adjusting the level of the wood panels (check with a level, error ≤2mm). Align the joints of the wood panels with the direction of the roof ridge line to avoid horizontal misalignment.

[0078] S6: Concrete pouring (controlling construction quality)

[0079] 1. Concrete transportation and placement: C25 concrete is transported to the roof using a concrete pump (model HBT60). The end of the placement pipe is connected to a flexible hose, and the concrete is placed from the ridge line to the lower end of the slope (to avoid the concrete from accumulating and sliding).

[0080] 2. Worker protection: Workers stand on the laid wooden planks and wear safety belts (the safety belts are hung on the Φ16mm steel safety rings embedded in the roof). The working range for each person is ≤2m.

[0081] 13. Vibration operation: Use ZN-50 type immersion vibrator, vibration spacing ≤300mm, vibration depth to the base surface (avoid missed vibration), vibration time for each point 15-20s (until no air bubbles overflow from the concrete surface);

[0082] 4. Layered pouring: Due to the concrete thickness of 120mm, it should be poured in one layer (if the thickness is greater than 150mm, multiple layers are required), and the pouring speed should be controlled at 10m / s. 2 / h, to avoid prolonged stress on the stent.

[0083] S7: Slope smoothing (improving surface quality)

[0084] 1. Leveling machine: 30 minutes after the concrete is poured (before the surface has initially set), start the cylinder to drive the wooden board to slide up and down along the slope;

[0085] 2. Sliding parameters: The cylinder working pressure is adjusted to 0.3MPa, the sliding speed is 0.5m / min, and the pause is 5s after each slide (to ensure concrete compaction), for a total of 3 slides;

[0086] 3. Flatness inspection: Arrange for a dedicated person to use a 2m straightedge to check the flatness of the concrete surface in real time. If the local error is >3mm, use a wooden trowel to smooth and adjust it to ensure that the surface flatness is ≤3mm / 2m.

[0087] S8: Stent Removal and Post-Stage Maintenance (Ensuring Structural Performance)

[0088] 1. Removal timing: 4 hours after the concrete is poured (at room temperature, when the concrete has initially set and its fluidity has decreased to the point where there is no sign of slippage), use a crane to gently lift the support (lifting speed ≤ 0.2m / s, to avoid collision with the edges and corners of the concrete);

[0089] 2. Defect Repair: After the support is removed, if there are defects (≤5mm) at the concrete corners, repair them with cement mortar (C25 concrete + glue) and cover them with plastic film after repair.

[0090] 3. Maintenance measures: Cover the entire roof with geotextile and water it for 7 days (water it 3 times a day to keep the geotextile moist). During the maintenance period, people are prohibited from stepping on it.

[0091] IV. Precautions for actual construction

[0092] 1. Weather response: If it rains, stop pouring immediately, cover the poured area with a rainproof cloth, and check the concrete surface for sand after the rain. If sand is found, it needs to be removed and re-poured. When the temperature is high (≥35℃), set up a sunshade on the roof and add a retarder (0.2%) to the concrete to extend the initial setting time.

[0093] 2. Stability check of the support: Check the settlement of the support legs once every 5m of slope poured (measured with a level; if the settlement is greater than 5mm, the length of the support legs needs to be adjusted).

[0094] 3. Synchronization control of the wooden plank: The cylinders on both sides are controlled by the same solenoid directional valve to ensure that the two ends of the wooden plank rise and fall synchronously, so as to avoid the wooden plank tilting and causing steps to appear on the concrete surface.

[0095] Working principle: Level the slope of the concrete to be poured to ensure it meets design and specification requirements and passes inspection; based on the slope and geometric dimensions of the three-sloped roof, fabricate a support 2 that rotates along the longitudinal axis, ensuring its height matches the concrete pouring height; prepare several wooden planks 18, each approximately 500mm wide and 50-100mm longer than the width of the support 2, with sufficient thickness and load-bearing capacity; place the support 2 on the concrete slope, leveling it to match the slope of the slope; adjust the threaded rods 16 inside the connecting columns 15 on the support 2. The length of the connecting column 15 and the threaded rod 16 is adjusted to match the thickness of the concrete. A wooden board 18 is laid at the lower end of the support 2 and its level is adjusted to meet the requirements of concrete pouring. The concrete pouring operator stands on the wooden board 18 to pour concrete between the slope and the wooden board 18 and vibrate it to compact it. After pouring, another wooden board 18 is laid, and then the concrete pouring continues. The cylinder 5 is activated, and the cylinder 5 drives the wooden board 18 to slide up and down. The wooden board 18 is used to smooth the concrete surface and compact the wooden board 18. The slope concrete pouring is completed in this way. When the fluidity of the concrete is reduced to the point where the concrete no longer slides down, the support 2 and the wooden board 18 are removed.

[0096] When the wooden board 18 needs to be removed, the swing plate 3 is flipped. The swing plate 3 is flipped by the hinge 11, and the magnets 12 between the swing plates 3 move away from each other, exposing the slide groove 22. The operator puts the sliders 19 on both sides of the wooden board 18 into the slide groove 22 in sequence, placing the wooden board 18 inside the support 2. The cylinder 5 can drive the wooden board 18 to move. When the angle of the support 2 needs to be adjusted, the support 2 is rotated. The support 2 drives the rotating tube 8 to rotate through the connecting plate 9. The rotating tube 8 can rotate on the surface of the support column 1. The movable ball 13 and the fixed column 14 are set to ensure that the connecting column 15 and the threaded rod 16 are always in a vertical state, which facilitates the support of the support 2. The convex plate 20 is set to increase the friction of the operator standing on the wooden board 18, ensuring the personal safety of the operator.

Claims

1. A concrete pouring method for a three-sloped roof, comprising supporting columns (1), characterized in that: The support column (1) is provided with brackets (2) on both the left and right sides. Two rotating tubes (8) are fitted on the outer edge of the support column (1) near the top and bottom. A connecting plate (9) is fixedly connected to one side of each rotating tube (8). One side of the connecting plate (9) is fixedly connected to the outer edge of the adjacent bracket (2). A fixing ring (10) is provided at the top and bottom of each rotating tube (8). The fixing ring (10) is fixedly connected to the outer edge of the support column (1). Two swing plates (3) are provided at the top of each bracket (2). A hinge (11) is provided on one side of each swing plate (3). The swing plate (3) is movably connected to the top of the bracket (2) through the hinge (11). A magnet (12) is fixedly connected to the corresponding side of each of the two adjacent swing plates (3). The two adjacent magnets (12) are set to fit together.

2. The concrete pouring method for a three-sloped roof according to claim 1, characterized in that: The bracket (2) has sliding grooves (22) on both the left and right sides of its inner cavity. The bracket (2) has wooden boards (18) on both sides of its inner cavity. Slider blocks (19) are fixedly connected to both sides of the wooden boards (18). The sliders (19) are movably connected to the inner cavities of adjacent sliding grooves (22). Several protruding plates (20) are fixedly connected to the front side of the wooden boards (18).

3. The concrete pouring method for a three-sloped roof according to claim 2, characterized in that: The support (2) has through holes (21) at the bottom near the left and right sides. A cylinder (5) is installed through the inner cavity of each through hole (21). An L-shaped rod (6) is fixedly connected to the left and right sides of the cylinder (5) near the bottom. The end of the L-shaped rod (6) away from the cylinder (5) is fixedly connected to the bottom of the support (2). A push plate (7) is fixedly connected to the top of each cylinder (5). The push plate (7) is located at the bottom of the adjacent wooden board (18).

4. The concrete pouring method for a three-sloped roof according to claim 3, characterized in that: Two limiting plates (4) are fixedly connected to the inner cavity of the bracket (2) near the rear side. Several connecting columns (15) are provided on the rear side of the bracket (2) and the limiting plate (4). A spherical groove is opened at the top of the connecting column (15). A movable ball (13) is movably connected in the spherical groove. A fixed column (14) is fixedly connected to the front side of the movable ball (13). The front end of the fixed column (14) is fixedly connected to the rear side of the adjacent bracket (2) and the limiting plate (4). A threaded hole is opened at the bottom of the connecting column (15). A threaded rod (16) is threadedly connected in the threaded hole. A washer (17) is fixedly connected to the bottom of the threaded rod (16).

5. A method for smoothing the slope surface of a three-sloped roof concrete pouring project according to any one of claims 1-4, characterized in that, Includes the following steps: S1: Slope pretreatment: Leveling operation is carried out on the three-sided sloping roof surface to be poured concrete to ensure that the slope meets the design requirements. S2: Frame (2) Fabrication: Based on the slope and geometric dimensions of the three-sided sloping roof, a steel frame that can rotate along the longitudinal axis is fabricated. The steel frame is made of welded steel pipes, and the steel pipes are firmly connected. The legs of the steel frame are equipped with a length adjustment structure so that the height of the legs can be consistent with the thickness of the concrete pouring. S3: Preparation of wooden boards (18): Prepare several wooden boards (18). The width of the wooden boards (18) is 500mm. The length of the wooden boards (18) is 50-100mm larger than the width of the steel frame. The wooden boards (18) have a preset thickness and load-bearing capacity and a smooth surface without protrusions. S4: Positioning of support (2): Move the steel frame to the area to be poured concrete, adjust the angle between the two steel pipe supports (2) by the rotating device on the steel frame so that the slope of the steel frame is consistent with the slope of the roof, and adjust the length of the support leg by the length adjustment structure of the support leg so that the length of the support leg is consistent with the thickness of the concrete. S5: Laying a wooden board (18): Lay a wooden board (18) at the bottom of the steel frame and adjust the level of the wooden board (18) to meet the requirements for concrete pouring; S6: Concrete pouring: Pour concrete between the slope and the laid wooden board (18) and vibrate it to make it compact. After the pouring of this area is completed, lay the next wooden board (18) on the steel frame and repeat the pouring and vibration operation. S7: Slope smoothing: During the concrete pouring process, the laid wooden boards (18) are slid up and down along the slope to smooth the concrete surface. S8: Sequential construction and support removal (2): Complete the concrete pouring of the entire slope in sequence according to the operation of steps S5-S7. When the concrete fluidity decreases to the point where it no longer slides down, remove the steel frame and wooden planks (18).

6. The slope smoothing construction method according to claim 5, characterized in that: When pouring concrete in S6, the workers stand on the laid wooden planks (18) to carry out the pouring and vibration operations. In S6, the vibration operation uses a vibrator to vibrate the concrete to a dense state to ensure that there are no air bubbles inside the concrete.

7. The slope smoothing construction method according to claim 5, characterized in that: When the wooden board (18) in S7 slides up and down to smooth the concrete surface, pressure is simultaneously applied to the wooden board (18) to compact the concrete surface.

8. The slope smoothing construction method according to claim 5, characterized in that: After the slope in S1 is leveled, it needs to be inspected and accepted. Only after the inspection is passed can the support (2) manufacturing process of S2 begin.

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