Technical method for box girder curing using centrifugal intelligent atomization sliding shed

Abstract

The present invention discloses a technical method for curing box girders using a centrifugal intelligent atomization sliding shed, comprising the following steps: Step A: transporting the sliding curing shed to the box girder and covering it with a fully enclosed shed curtain, so that the box girder is completely enclosed within the sliding curing shed; Step B: installing a plasma centrifugal atomization device on the sliding curing shed, such that the fluid nozzle of the plasma centrifugal atomization device faces the box girder; Step C: connecting and debugging a controller to the plasma centrifugal atomization device; Step D: starting the plasma centrifugal atomization device and using the controller to control the temperature and humidity within the sliding curing shed to perform curing. This technical method is practical and feasible, can achieve a concrete humidity of over 90%, and is highly practical, operable, and safe, greatly ensuring the normal growth of concrete strength.

Description

Technical Field

[0001] The present invention relates to the technical field of box girder curing, and more specifically to a technical method for curing box girder using a centrifugal intelligent atomization sliding shed. Background Art

[0002] Box girder maintenance inspection is a crucial control process in bridge inspection and a crucial guarantee for overall road quality. Bridge maintenance is a crucial step in construction. Therefore, achieving high-quality shaping and curing of precast bridge components while maximizing water retention while meeting economic and environmental targets presents a new challenge. Currently, bridges are typically maintained by covering them with straw mats. However, this method is inconvenient to move on-site and is prone to damage during handling. Furthermore, this curing process suffers from rapid water evaporation, slow box girder strength growth, low efficiency, high workload, and high labor costs. Furthermore, the high water consumption during construction falls short of water conservation requirements. Box girder concrete loses water rapidly during hardening, causing shrinkage. If not maintained promptly, cracks will inevitably form. Therefore, maintaining adequate moisture is crucial for reducing concrete cracks and ensuring durability. However, some structural areas, such as the box girder web, are difficult to maintain moisture through sprinkling. In order to improve the rationality and intelligence of box girder maintenance technology, it is necessary to develop a box girder curing system to moisturize the concrete components in all directions, so as to improve the strength of concrete, eliminate micro cracks in concrete components and speed up the progress of the project. Summary of the Invention

[0003] To this end, the technical problem to be solved by the present invention is to provide a technical method for box girder curing using a centrifugal intelligent atomization sliding shed, so as to solve the problems of large water consumption and poor moisturizing effect of existing box girder curing methods.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The technical method for curing box beams using a centrifugal intelligent atomization sliding shed includes the following steps:

[0006] Step A: transport the sliding curing scaffold to the box beam and cover the sliding curing scaffold with a fully enclosed scaffolding curtain so that the box beam is completely enclosed in the sliding curing scaffold;

[0007] Step B: Installing a plasma centrifugal atomization device on the sliding curing scaffolding, such that the fluid nozzle of the plasma centrifugal atomization device faces the box beam;

[0008] Step C: Connect the controller to the plasma centrifugal atomization equipment and debug;

[0009] Step D: Start the plasma centrifugal atomization equipment and use the controller to control the temperature and humidity in the sliding curing shed to perform curing.

[0010] The above-mentioned technical method for box girder curing using centrifugal intelligent atomization sliding shed is as follows: the sliding curing shed comprises a support column, an upper support rod, a middle support rod, a lower support rod, a support plate, a first fork frame, a support sleeve, a second fork frame, a connecting rod, a lifting rod, a lifting wheel, a lifting pulley, a jacking mechanism and a first limiting mechanism, wherein a total of 5 support columns are provided, and each group of support columns is commonly connected to an upper support column, the upper support column is fixed with a middle support rod and the lower support rod, and the lower support rod is symmetrically fixed with two support plates. Adjacent two groups of support columns are connected to the first fork frame by the bracket sliding sleeve, the middle support rod is rotatably connected to the second fork frame, the adjacent two second fork frames are rotatably connected by the connecting rod, the middle support rod is slidably connected to the lifting rod, the upper and lower ends of the lifting rod are respectively equipped with lifting wheels and lifting pulleys, the connecting rod is connected to the jacking mechanism, when the second fork frame is expanded, the jacking mechanism will drive the lifting rod to rise, and the middle support rod is connected to the first limiting mechanism for limiting the resetting of the lifting rod.

[0011] The above-mentioned technical method for curing box beams using a centrifugal intelligent atomization sliding shed comprises a lifting mechanism including a lifting rope, a lifting connection block, a lifting guide wheel, a lifting slide bar, a lifting tension spring and a trapezoidal rod, wherein one end of the lifting rope is connected to the connecting rod, the lower support rod is rotatably connected to the lifting guide wheel via the lifting connection block, and the support plate is also rotatably connected to the lifting guide wheel, the lifting rope passes through the upper part of the same side, the lower support rod is slidably connected to the lifting slide bar, the other end of the lifting rope passes through the lifting guide wheel on the same side and is connected to the lifting slide bar on the opposite side, the lifting slide bar is connected to the support plate by a lifting tension spring, and the lifting slide bar is fixedly connected to the trapezoidal rod. During the process of unfolding the sliding shed, the lifting mechanism drives the lifting top wheel to extend upward, and when manually covering the scaffolding curtain on the upward support rod, the scaffolding curtain slides on the lifting top wheel, converting the sliding friction between the scaffolding curtain and the upper support rod into rolling friction, thereby saving workers' physical strength and reducing the wear of the scaffolding curtain. The connecting rod drives the lifting slide block to slide on the lower support rod through the lifting rope, so that the trapezoidal rod can be released from the lifting pulley, and the lifting push rod is pushed upward through the lifting pulley to facilitate the lifting push wheel to extend from the upper support rod.

[0012] The above-mentioned technical method for curing box girders using a centrifugal intelligent atomization sliding shed comprises a first limiting mechanism comprising a lifting limit frame, a lifting limit rod, and a lifting spring. The lifting limit rod is slidably connected to the middle support via the lifting limit frame, and the lifting limit rod is sleeved with a lifting spring. The lifting limit rod restrains the lifting mandrel from resetting downward, allowing the lifting wheel to remain extended. The restriction on the lifting mandrel can be manually removed by pulling the main pull rod, avoiding the difficulty of workers directly removing the restriction due to the high position of the middle support rod. This not only improves work efficiency but also reduces safety hazards.

[0013] The lifting limit frame is rotatably connected to the limited guide wheel, and the reset rope passes around the reset lower guide wheel, the reset upper guide wheel and the limit guide wheel, and the other end of the reset rope is connected to the lifting limit rod away from the lifting top rod.

[0014] The above-mentioned technical method of using a centrifugal intelligent atomization sliding shed for box girder curing, the sliding curing shed also includes a pushing mechanism for pushing the shed cloth to both sides, the pushing mechanism cooperates with the jacking mechanism, the pushing mechanism includes a pushing guide rod, a pushing spring, a pushing push rod and a push rod stopper, the lower support rod is slidably connected to the pushing push rod, the pushing push rod is fixedly connected to the pushing guide rod for sliding connection with the lifting slide rod, the pushing guide rod is fixedly connected to the pushing guide rod, the pushing guide rod is provided with a pushing spring, and the pull rope connecting block is connected to a second limiting mechanism for limiting the pushing guide rod.

[0015] The second rope passes around the reset lower guide wheel, the pushing small guide wheel and the pushing large guide wheel, and the end of the second rope away from the rope connecting block is connected to the other pushing limit rod. In the process of manually pulling the main pull rod, the first pull rope and the second pull rope are used to drive the extension limit rod to cancel the limit on the lifting slide rod. The sliding process of the lifting slide rod is to push the spring to store force, so that the worker can push the guide rod to slide outward while retracting the lifting top wheel, so that the shed cloth can be pushed and unfolded to both sides. While manually pulling the main pull rod, the shed cloth has been unfolded in the left and right directions. At this time, the worker is assisted by pushing the guide rod to unfold the shed cloth in the front and back directions, reducing the worker's physical labor.

[0016] The above-mentioned technical method for curing box beams using a centrifugal intelligent atomization sliding shed includes a lifting mechanism for adjusting the height of the sliding curing shed, which is connected to the lower support rod. The lifting mechanism includes a lifting guide plate, a lifting guide rod, a lifting limit rod, a lifting guide frame, and an electric push rod. The support plate on the middle lower support rod is fixedly connected to the lifting guide plate, which is slidably connected to the lifting guide rod. The lifting guide plate is provided with a lifting limit rod. The lifting guide rod is slidably connected to the lifting guide frame. The support plates are each provided with a slideway for facilitating the insertion of the lifting guide frame. The lifting guide rod is fixedly connected to the outermost support plate. An electric push rod is installed on the support column and is connected to the upper lower support rod. The electric push rod adjusts the height of the middle support rod through the lifting guide plate and the lifting guide rod, thereby facilitating adjustment according to the height of the box beam and facilitating workers to set up the shed cloth.

[0017] The above-mentioned technical method of using a centrifugal intelligent atomization sliding shed for box girder curing, the sliding curing shed also includes a moving mechanism that facilitates the movement of the support column, the moving mechanism includes a roller frame, a moving wheel, a limiting ring, a limiting block, a limiting pressure rod and a limiting rocker arm, the support column is rotatably connected to the roller frame, the roller frame is rotatably connected to the moving wheel, the roller frame is slidably connected to the limiting ring, the limiting block is fixed on the limiting ring, the roller frame is slidably connected to the limiting pressure rod, and the roller frame is rotatably connected to the limiting rocker arm.

[0018] The above-mentioned technical method for curing box beams using a centrifugal intelligent atomizing sliding shed, the sliding curing shed also includes an atomizing mechanism for moisturizing the box beam, the atomizing mechanism includes a placement plate, a placement slider, a rack, a gear, a placement shaft, a placement clamping rod, a clamping rod handle, a placement limit rod and a plasma centrifugal atomizer, two placement sliders are slidably connected to the placement plate, a rack is fixed on the placement slider, a gear is rotatably connected to the placement plate, the gear is simultaneously engaged with the rack, a placement shaft is rotatably connected to the placement slider, a placement clamping rod and a clamping rod handle are fixed on the placement shaft, a placement limit rod is installed on the placement plate, a plasma centrifugal atomizer in the prior art is installed at the lower end of the placement plate, and the plasma centrifugal atomizer is connected to the intelligent electric controller device in the prior art. The cooperation of the placement clamping rod and the second fork frame facilitates the rapid installation of the plasma centrifugal atomizer by workers, and by connecting with the intelligent electric controller, intelligent moisturizing and curing treatment can be achieved, thereby improving work efficiency.

[0019] The technical solution of the present invention achieves the following beneficial technical effects:

[0020] The present invention forms a complete box girder curing system through an optimized combination of a centrifugal intelligent atomizer, a sliding shed, an intelligent detection controller and a sliding shed fixing device. The intelligent detection controller, with the help of the plasma centrifugal atomization system function, converts the specific electrical energy generated by the circuit system into ultrasonic shock wave energy through a rotating plate, and atomizes water-soluble substances into extremely small particles through the propagation of a water wave shock membrane. This allows the concrete components to be moisturized in all directions, completely improves the strength of the concrete, ensures temperature and humidity, eliminates micro cracks in the concrete components, promotes strength growth, and accelerates the progress of the project. Practice has proved that this process is feasible, and the humidity of the concrete can reach more than 90%. It has great practicality, operability, and safety, greatly guarantees the normal growth of the concrete strength, prevents quality accidents, and has the advantages of saving costs, energy saving, environmental protection, and accelerating the progress of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a process flow of a technical method for curing box beams using a centrifugal intelligent atomization sliding shed in an embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the installation of the steel bar shed and diagonal bracing in the embodiment of the present invention;

[0023] Figure 3 Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 In the embodiment of the present invention, F 风 Calculation diagram of ;

[0025] Figures 5a to 5hThis is a diagram showing the sequence of device installation in an embodiment of the present invention;

[0026] Figure 6 Effect diagram of the sliding shed in the embodiment of the present invention;

[0027] Figure 7 In the embodiment of the present invention, the fully enclosed scaffolding curtain covers the enclosed formed beam diagram on the scaffolding of the health shed;

[0028] Figure 8 A real picture of the control panel of the atomization device in an embodiment of the present invention;

[0029] Figure 9 Actual picture of box girder strength detection in an embodiment of the present invention;

[0030] Figure 10 Concrete strength test report (rebound method) in the embodiment of the present invention;

[0031] Figure 11 Actual photos of the sliding health-preserving scaffolding assembled in place in an embodiment of the present invention;

[0032] Figure 12 Actual photos of the intelligent controller in the embodiment of the present invention;

[0033] Figure 13 A perspective view of a health-preserving shed according to an embodiment of the present invention;

[0034] Figure 14 The embodiment of the present invention is a movable and retractable health shed tarpaulin;

[0035] Figure 15 Schematic diagram of the overall structure of the sliding health-preserving shed in an embodiment of the present invention;

[0036] Figure 16 Schematic diagram of the position of the connecting rods of the sliding health-preserving scaffolding in an embodiment of the present invention;

[0037] Figure 17 Schematic diagram of the position of the lifting limit rod of the sliding health-preserving shed in an embodiment of the present invention;

[0038] Figure 18 Schematic diagram of the placement of the clamping rods of the sliding health-preserving scaffolding in an embodiment of the present invention;

[0039] Figure 19 Schematic diagram of the position of the lifting guide wheel of the sliding health-preserving shed in an embodiment of the present invention;

[0040] Figure 20 A schematic diagram of the trapezoidal rod structure of the sliding health-preserving scaffolding in an embodiment of the present invention;

[0041] Figure 21 Schematic diagram of the position of the extension guide rod of the sliding health-preserving scaffolding in an embodiment of the present invention;

[0042] Figure 22 Schematic diagram of the main pull rod position of the sliding health-preserving shed in an embodiment of the present invention;

[0043] Figure 23 Schematic diagram of the position of the extension limit rod of the sliding health-preserving shed in an embodiment of the present invention;

[0044] Figure 24 Schematic diagram of the position of the large guide wheel for extending the sliding health-preserving scaffolding in an embodiment of the present invention;

[0045] Figure 25 A schematic diagram of the lifting guide frame structure of the sliding curing scaffolding according to an embodiment of the present invention;

[0046] Figure 26 A schematic diagram of the connection relationship of the restraining rings of the sliding curing scaffolding in an embodiment of the present invention;

[0047] Figure 27 A schematic diagram of the placement of the clamping rod structure of the sliding health-preserving scaffolding in an embodiment of the present invention;

[0048] Figure 28 Schematic diagram of the placement axis position of the sliding health-preserving scaffolding in an embodiment of the present invention.

[0049] The reference numerals in the figure are as follows: 1-support column; 101-upper support rod; 102-middle support rod; 103-lower support rod; 1031-support plate; 104-first fork-shaped frame; 105-bracket sliding sleeve; 106-second fork-shaped frame; 2-connecting rod; 201-lifting rope; 202-lifting connecting block; 203-lifting guide wheel; 204-lifting slide rod; 2041-lifting tension spring; 205-trapezoidal rod; 20 6-lifting rod; 207-lifting top wheel; 208-lifting pulley; 3-lifting limit frame; 301-lifting limit rod; 302-lifting spring; 4-lifting sleeve; 401-main pull rod; 402-main spring; 403-main pull rope; 404-pull rope connecting block; 405-reset pull rope; 406-reset lower guide wheel; 407-reset upper guide wheel; 408-limit guide wheel; 5-pushing guide rod; 501- Push spring; 502-Push rod; 5021-Push rod stopper; 503-First pull rope; 504-Push limit frame; 505-Push upper guide wheel; 506-Push limit rod; 507-Limit spring; 508-Second pull rope; 509-Push small guide wheel; 510-Push large guide wheel; 6-Lifting guide plate; 601-Lifting guide rod; 602-Lifting limit rod; 603-Lifting guide frame; 604- Limiting slot; 605-electric push rod; 7-roller frame; 701-moving wheel; 702-limiting ring; 7021-limiting block; 703-limiting pressure rod; 704-limiting rocker; 8-placement plate; 801-placement slider; 802-rack; 803-gear; 804-placement shaft; 805-placement clamping rod; 806-clamping rod handle; 807-placement limiting rod; 808-plasma centrifugal atomizer. DETAILED DESCRIPTION

[0050] This example demonstrates the technical method of curing box girders using a centrifugal intelligent atomization sliding shed, as described in the present invention. In May 2021, a centrifugal intelligent atomization sliding shed was used to cure finished concrete products at the bridge and culvert box girder prefabrication yard of the second division of the general contracting project for the construction of the Bayan Obo to Ming'an Town (Gunhuduge) section of National Highway 335 in Damao Banner, Baotou City.

[0051] 1. Application example of using centrifugal intelligent atomization sliding shed for box girder curing

[0052] 1. Introduction to engineering test projects

[0053] In order to improve the rationality and intelligence of the box girder maintenance process and optimize the maintenance process, this embodiment combines the characteristics of the actual box girder prefabrication project, such as the large amount of construction tasks, and according to the characteristics of the on-site construction environment, studies and analyzes the application of the optimized combination of "centrifugal intelligent atomization sliding shed" in box girder maintenance. This technology combines a centrifugal intelligent atomizer with a sliding shed and an intelligent detector. This technology forms a complete box girder maintenance system through the optimized combination of a centrifugal intelligent atomizer, a sliding shed, an intelligent detection controller and a sliding shed fixing device. The intelligent detection controller uses the plasma centrifugal atomization system function to convert the specific electrical energy generated by the circuit system into ultrasonic shock wave energy through a rotating plate, and atomizes water-soluble substances into extremely small particles through the propagation of a water wave shock membrane. This allows the concrete components to be moisturized in all directions, completely improves the strength of the concrete, ensures temperature and humidity, eliminates micro cracks in the concrete components, promotes strength growth, and accelerates the progress of the project. Practice has proved that this process is feasible and can reduce the humidity of concrete to more than 90%. It is very practical, operational and safe, greatly ensuring the normal growth of concrete strength and preventing quality accidents. It also has the advantages of saving costs, energy conservation and environmental protection, and accelerating project progress.

[0054] 2. Technical Features

[0055] (1) Combined installation of sliding curing shed, plasma centrifugal atomization system and fully enclosed shed curtain.

[0056] (2) Atomization maintenance The all-round plasma centrifugal atomization system and the controller automatically detect and operate, which can retain water and moisture, and significantly increase the strength. Only one person is required to complete the construction operation and maintenance, which is easy to operate and efficient.

[0057] (3) The sliding curing shed, plasma centrifugal atomization system, and fully enclosed scaffolding curtain are installed in an optimized combination. The electric controller controls the plasma centrifugal atomization system. With the help of the plasma centrifugal atomization system, all-round atomization curing of prefabricated beams and slabs is carried out, eliminating blind spots in curing and improving work efficiency. Continuous atomization curing of concrete components has a good hydration reaction, eliminating micro cracks in the concrete structure and promoting strength growth.

[0058] (4) The sliding box girder curing shed fixing device is convenient and quick, and is suitable for fixing the curing shed under strong wind conditions in the north. The curing shed is installed and reinforced one section at a time, avoiding the disadvantage of fixing the curing shed after the overall layout is completed, thereby increasing the lateral wind pressure of the curing shed and making it difficult to fix.

[0059] 3 Scope of application

[0060] This technology is suitable for the maintenance of large-area exposed box girder concrete surfaces that have been cast, such as 20-meter box girders, 25-meter box girders, prefabricated cover plates and small concrete components.

[0061] 4 Process Principle

[0062] This technology mainly involves the optimized combination and installation of a sliding curing shed, a plasma centrifugal atomization system, and a fully enclosed scaffolding curtain. The electric controller controls the plasma centrifugal atomization system, which is used to perform all-round atomization curing of prefabricated beams and slabs, eliminating blind spots in curing and improving work efficiency. The atomization curing ensures a good continuous hydration reaction, eliminates microcracks, and promotes the strength growth of concrete components.

[0063] 5. Process flow and operation points

[0064] 5.1 Process flow chart

[0065] The process flow chart in this embodiment is as follows Figure 1 shown.

[0066] 5.2 Operation points:

[0067] 5.2.1. Equipment Installation

[0068] 5.2.1.1 Equipment installation analysis and demonstration:

[0069] To prevent the curing shed from shifting or even overturning during the curing process, this embodiment uses 40cm×40cm×4m square steel as a push rod to support and reinforce the curing shed to ensure normal box girder curing. Taking a 20-meter box girder as an example: 5 groups of curing sheds are used for each cycle, each group consisting of two small sections spliced ​​together, requiring a total of 10 sections. Each single curing shed group has 24 columns, 1.8 meters wide, 2 meters high (columns), and 11 meters long. A group of push rods is set every other column, requiring a total of 120 diagonal braces. Considering the convenience, economy, and reliability of construction, the diagonal braces are made of 40cm×40cm×4m galvanized square steel. To increase the support area, the two ends of the square steel are formed into a 60° bevel. A 10mm diameter round steel bar is welded to one end of the curing shed to form a locking hole at the top of the scaffolding column. The other end is connected to the hardened ground of the site and squeezed tightly with a wooden wedge.

[0070] From an economic perspective, square steel weighs 3.305 kg per meter. Total square steel consumption: 120 x 2.301 x 3.305 = 912.5 kg. At 6,000 yuan per ton, the total is 6,000 x 0.9125 = 5,475 yuan. Φ10 steel bars: 0.616 kg per meter, for a total weight of 120 x 0.15 x 0.616 = 11 kg. 11 kg x 5,000 yuan per ton ÷ 1,000 = 55 yuan. With a processing fee of 50 yuan per piece, the total is 50 x 120 = 6,000 yuan, for a total of 5,475 + 55 + 6,000 = 11,530 yuan. From the economic analysis of the whole year: the single investment in the fixed device of the mobile box girder curing shed is 11,530 yuan, which can be used many times. Based on 150 box girders per year, it can be used for at least 3 years. After three years, the residual value of the equipment can be sold at the scrap iron price of 2,000 yuan / ton and can be recovered at 0.9125×2,000=1,825 yuan. The average amortization per box girder is (11,530-1,825)÷450=21.5 yuan / piece. Each cycle process can be completed within one day with 2 workers, that is, the labor cost is 2×200=400 yuan, and the average labor cost for each beam is 400÷5=80 yuan, totaling: 80+21.5=101.5 yuan / piece. Ordinary wire rope fixation requires at least 4 workers per day, that is, 4×200=800 yuan / day, and the total labor cost for each box beam is: 800÷5=160 yuan. According to the annual construction progress, the ordinary reinforcement method costs more than this reinforcement method (160-101.5)×150=8775 yuan / year, and the cost over three years is: 8775×3=26325 yuan.

[0071] 5.2.1.2 Wind resistance analysis and stability demonstration:

[0072] Anti-overturning stability check, wind pressure value reference:

[0073] (1) Load calculation

[0074] a. Self-weight of the frame: The self-weight of each linear meter is calculated as 300kg, that is, G = 2.94kN / m.

[0075] b. Wind load: According to the Code for Building Structure Loads, basic wind pressure: ω0 = 0.6 kN / m 2 ;

[0076] Wind pressure height variation coefficient: uz = 1.0;

[0077] Wind load shape coefficient: us = 1.0;

[0078] Standard value of wind load: ω k =μs*μz*ω0=0.6×1.0×1.0=0.6kN / m 2 .

[0079] c. Supporting force of the bracing pole: the spacing between the bracing poles is 2m;

[0080] According to the vertical force balance F support = G / 2 ÷ COS30° ÷ 2 = 0.85kN / m;

[0081] d. Sandbag deadweight: The deadweight of each linear meter is 150kg, i.e. 1.47kN / m.

[0082] (2) Anti-overturning check calculation

[0083] Stability coefficient K = 3.0; take 1m width as calculation unit and 2m height;

[0084] Take the maximum side windward area: AK = 1 × 2 = 2m 2 ; Then: F = WK × AK = 0.6 × 2 = 1.2 kN;

[0085] According to the calculation diagram, take the distance from the most unfavorable position A, and the overturning moment: M 风 =1.2×2 / 2=1.2kN·m;

[0086] Resistance to overturning moment: M 抗 =2.94×1+0.85×s in30°×2+1.47×2=6.73kN·m;

[0087] K=M 抗 / M 风 =6.73 / 1.2=5.6>3; then the anti-overturning requirements are met.

[0088] (3) Anti-slip check

[0089] Anti-slip coefficient K = 1.0; the friction coefficient between the sandbag and the ground is 0.3 and is arranged in two directions; 1m width is taken as the calculation unit, F 风 =1.2kN; horizontal component of the support rod: F· =0.85×s in30° =0.425kN; anti-slip force F 抗 =0.425+2×0.3×1.47; K=F 抗 / F 风 =1.307 / 1.2=1.1>1; anti-slip meets the requirements.

[0090] 5.2.1.2 Equipment installation sequence

[0091] Forming beams → Assemble the sliding curing scaffolding → Assemble the plasma centrifugal atomization equipment → Assemble the controller → Check the whole process → Power on and debug → Accept the whole process → Put into use.

[0092] When installing the equipment, leave enough space between the sliding scaffolding and the maintenance equipment and the beams. The scaffolding cloth is fixed to the overall sliding scaffolding and installed firmly. The atomization equipment and automatic control system are debugged and operate well.

[0093] 5.2.1.3 Atomization Curing Technology Process

[0094] Start → first formed beam → first sliding scaffolding assembled → second formed beam in place → second sliding scaffolding assembled → first two pieces mist curing → temperature and humidity and concrete strength testing under the same conditions → curing acceptance → hoisting → N pieces of beam construction mist curing qualified → hoisting → end.

[0095] 5.2.2 Equipment Installation Precautions

[0096] (1) Safety precautions must be taken throughout the entire installation process, and unrelated personnel are strictly prohibited from approaching the work area.

[0097] (2) Before installation, you must be familiar with the installation steps, predict potential safety hazards during the installation process, and take measures to prevent them from occurring.

[0098] (3) Prepare the installation tools and equipment, and check whether the relevant power sources are connected.

[0099] (4) The equipment must be leveled and adjusted carefully, as its horizontal state will directly affect the use and life of the equipment.

[0100] (5) The leakage protector and circuits must be installed correctly and ensure their safe operation.

[0101] (6) Before using the equipment, check whether the equipment is in place and keep records. Place cones and safety signs 1 meter in front and behind the work area.

[0102] (7) During operation, the sliding curing shed is always kept stable to prevent shaking. To prevent micro-deformation caused by its own weight, it is necessary to configure safety ropes and sandbags to fix them at fixed points. The counterweight is a sandbag, which is set on the windward side and the crossbeam is adjusted to increase the weight to ensure the maximum thrust at wind speeds of 8-10.

[0103] 5.2.3. Equipment maintenance

[0104] Before the equipment is put into operation, a comprehensive inspection of the equipment condition should be carried out, mainly in the following aspects:

[0105] (1) Whether the emergency stop button (any one of the three) is pressed and whether the C control power switch is in the off state;

[0106] (2) Whether the connections of each line are normal;

[0107] (3) Whether there is leakage;

[0108] (4) Check whether the bolts and nuts are loose;

[0109] (5) During the operation of the equipment, pay attention to check whether the wires are overheating;

[0110] (6) During the operation of the equipment, it is strictly forbidden to collide with the electrical parts and a certain distance must be maintained;

[0111] (7) The sandbags should be checked regularly every 1-2 months. If there is sand leakage or wear on the wire rope, they should be replaced in time.

[0112] (8) Check all functions of all equipment weekly.

[0113] 5.2.4 On-site testing

[0114] (1) Health preservation

[0115] Forming beams → Assembling and fixing the sliding curing scaffolding → Plasma centrifugal atomization equipment in place → Controller in place → Overall inspection to see if everything is correct → Power on and debug → Overall acceptance → Put into use.

[0116] Assemble the sliding curing scaffolding on the forming beam to form a whole; the interval length of each scaffolding is usually about 1 meter, and the fully enclosed scaffolding curtain covers the enclosed forming beam on the curing scaffolding. Install the plasma centrifugal atomization equipment on the scissors support at the top of the curing scaffolding. The atomization equipment and the automatic control system are debugged and run well. When the curing period is reached, the strength is tested, the beam is moved, and the next piece of curing is carried out.

[0117] (2) Detection intensity

[0118] The equipment installation sequence is as shown in the figure above: leave enough space between the sliding scaffolding and maintenance equipment and the beams, the scaffolding cloth is fixed to the overall sliding scaffolding and installed firmly, the atomization equipment and automatic control system are debugged and operate well; the box beam strength is measured to be 50.3MPa.

[0119] 6 Materials

[0120] The material composition is shown in the following table:

[0121] Material name Specification Quantity and unit weighted sandbag 50cm*50cm*80cm 350 Cable wire 10mm 10 30m buckle 100 Anchor screws 120*20 200

[0122] 7Machinery and Equipment

[0123] The main equipment is shown in the following table:

[0124] Device Name Quantity and unit Sliding health shed 5 sets Plasma centrifugal atomization system 5 sets Smart remote control device 5 sets Fully enclosed scaffolding screen 5 sets

[0125] 8.2 Security Measures

[0126] 8.2.1 Implementation standards

[0127] Implement the "Technical Specifications for Safety in Highway Engineering Construction" JTG F90-2015.

[0128] 8.2.2 Safety management organizational measures

[0129] (1) Equipment operators must be trained before operating the equipment and have a full understanding of the equipment performance.

[0130] (2) Operators should conduct safety pre-operation planning before starting the operation, and test personnel should conduct hypothetical analysis of the dangers that may occur during the operation and prepare corresponding countermeasures.

[0131] (3) To ensure the safety of the testing operation, a full-time safety officer is assigned to the testing site. He / she will provide safety education and technical briefing to the workers on the testing site and will be responsible for the safety work on the testing site.

[0132] (4) During the inspection operation, measures should be taken to prevent wind gusts to reduce the horizontal thrust of the wind, shorten the placement time of sandbags as much as possible, save water to the maximum extent, record the temperature and humidity of the inspection equipment, and close the curtain in time after the operation is completed to ensure good temperature and humidity in the space.

[0133] 9. Quality Control

[0134] 9.1 As this technology is an auxiliary supporting facility and needs to be continuously reviewed and improved, the following quality requirements should be observed during installation and use; in order to improve progress and ensure safety, and to achieve zero safety, materials and equipment that meet national standards should be used.

[0135] 9.2 The welding of support rods and tie rods shall comply with the provisions of the "Regulations on Steel Bar Welding and Acceptance". The welds in the connection process must be full, and welders must be certified to ensure no leakage and quality assurance.

[0136] 9.3 Quality control standards and specifications

[0137] (1) Quality control shall comply with the Highway Engineering Quality Inspection and Assessment Standard JTG F80 / 1-2017.

[0138] (2) Control standards and specifications shall be implemented in accordance with the "Procedure for On-site Inspection and Testing of Highway Roadbed and Pavement" JTG 3450-2019, the "Technical Specifications for Construction of Highway Cement Concrete Pavement" JTG / T F30-2014, the "Technical Specifications for Highway Bridge and Culvert Construction" JTG / T 3650-2020, and the "Technical Guidelines for Standardization of Expressway Construction" Volume 4, Bridge Engineering.

[0139] 2. Improvement of sliding health scaffolding

[0140] Although the sliding curing scaffolding used in this embodiment can be used to erect a scaffolding curtain (referred to as a scaffolding curtain for short), the high height of the telescopic scaffolding and the heavy construction scaffolding curtain result in significant friction when manually pulling the scaffolding curtain onto the telescopic scaffolding, making erection very laborious and inefficient. Furthermore, telescopic scaffolding generally has a steel frame structure, and pulling the scaffolding curtain directly onto the steel frame causes significant wear and tear on the scaffolding curtain, reducing its service life. Therefore, this embodiment further improves the structure of the sliding curing scaffolding.

[0141] like Figures 15 to 17 As shown, it includes a support column 1, an upper support rod 101, a middle support rod 102, a lower support rod 103, a support plate 1031, a first fork-shaped frame 104, a bracket slide 105, a second fork-shaped frame 106, a connecting rod 2, a lifting top rod 206, a lifting top wheel 207, a lifting pulley 208, a lifting mechanism and a first limiting mechanism. The support column 1 is provided with 5 groups, each group has two, and the support columns 1 of the same group are connected to an upper support rod 101. The middle part of the upper support rod 101 is fixedly connected to the upper support rod 101. There is a middle support rod 102, the lower ends of the upper support rod 101 and the middle support rod 102 are fixedly connected to the lower support rod 103, and two support plates 1031 are symmetrically fixed on both sides of the lower support rod 103. A first fork-shaped frame 104 is connected between two adjacent groups of support columns 1. The first fork-shaped frame 104 is X-shaped, and the upper side of the first fork-shaped frame 104 is rotatably connected to the support column 1, and the lower side of the first fork-shaped frame 104 is rotatably connected to the bracket sleeve 105, and the bracket sleeve 105 is slidably connected to the support column 1. The support column 1, the upper support rod 101, the middle support rod 102, the lower support rod 103, the support plate 1031, the first fork frame 104 and the bracket sliding sleeve 105 are combined into the main structure of the telescopic scaffolding. The middle support rod 102 is rotatably connected to the second fork frame 106. The second fork frames 106 on the three middle support rods 102 are also X-shaped. The second fork frames 106 on the two outermost support rods 102 are V-shaped. The two adjacent second fork frames 106 are connected by two The connecting rod 2 is rotatably connected, and a lifting push rod 206 is slidably connected to the middle support rod 102. The upper end of the lifting push rod 206 is symmetrically rotatably connected to two lifting push wheels 207, and the lower end of the lifting push rod 206 is rotatably connected to a lifting pulley 208. A jacking mechanism is connected to the connecting rod 2. When the second fork frame 106 is unfolded, the jacking mechanism will drive the lifting push rod 206 to rise upward. The middle support rod 102 is connected to a first limiting mechanism for limiting the reset of the lifting push rod 206.

[0142] When the box girder needs to be maintained, the workers pull the support columns 1 on the left and right sides in the directions away from each other. During the pulling process, the first fork frame 104 and the second fork frame 106 will expand into an X shape. During this process, the connecting rod 2 will gradually move away from the lower support rod 103. When the connecting rod 2 gradually moves away from the lower support rod 103, the jacking mechanism will be triggered, and the jacking mechanism will drive the lifting rod 206 to move upward through the lifting pulley 208. The lifting wheel 207 is initially located in the upper support rod 101. After the lifting rod 206 moves upward, the lifting wheel 207 will extend out from the upper support rod 101, and the first limiting mechanism limits the lifting rod 206 from moving downward and resetting, thereby converting the sliding friction into rotational friction through the lifting wheel 207, which is convenient for workers to put up the shed cloth. When the shed cloth is manually put up, the restriction of the lifting rod 206 by the first limiting mechanism is cancelled, and the lifting rod 206 slides downward and resets, so that the shed cloth contacts the upper support rod 101. When the awning cloth is manually put on the upward support rod 101, the awning cloth slides on the lifting top wheel 207, and the sliding friction between the awning cloth and the upper support rod 101 is converted into rolling friction, which saves the workers' physical strength and reduces the wear of the awning cloth.

[0143] like Figures 16 to 21 As shown, the lifting mechanism includes a lifting rope 201, a lifting block 202, a lifting guide wheel 203, a lifting slide 204, a lifting spring 2041 and a trapezoidal rod 205. Each connecting rod 2 is connected to one end of two lifting ropes 201. Two lifting blocks 202 are symmetrically arranged on the center of the lower support rod 103. The lifting blocks 202 are both rotatably connected to the lifting guide wheels 203. The support plates 1031 on both sides are also symmetrically rotatably connected to the lifting guide wheels 203. The pull rope 201 passes around the lifting guide wheel 203 on the same side, and two lifting slide bars 204 are symmetrically connected to the center of the lower support rod 103. The end of the lifting rope 201 away from the lifting block 202 is connected to the lifting slide bar 204 on the opposite side. A lifting spring 2041 is connected between the lifting slide bar 204 and the support plate 1031 on the opposite side. The two lifting slide bars 204 are fixed with a trapezoidal rod 205 on the side close to each other, and the trapezoidal rod 205 is in the shape of an isosceles trapezoid.

[0144] When the connecting rod 2 moves away from the lower support rod 103, the lifting rope 201 will be pulled, and the lifting rope 201 will apply tension to the lifting slide 204 through the guidance of the lifting guide wheel 203. The lifting slide 204 will slide in the direction close to the opposite support plate 1031. At this time, the lifting tension spring 2041 will be stretched, and in this process, the two trapezoidal rods 205 will contact the lifting pulley 208 at the same time, and the lifting top rod 206 will be squeezed upwards through the lifting pulley 208. When the connecting rod 2 moves in the direction close to the lower connecting rod, the lifting rope 201 will apply tension to the lifting slide 204 through the lifting guide wheel 203. The spring 2041 will drive the lifting slide bar 204 to slide and reset. During this process, the two trapezoidal rods 205 will contact the lifting pulley 208 again and squeeze the lifting pulley 208 upward, so that the lifting push rod 206 will be pushed up again; the connecting rod 2 drives the lifting slider to slide on the lower support rod 103 through the lifting rope 201, so that the trapezoidal rod 205 can be released from the lifting pulley 208, and the lifting push rod 206 is pushed upward through the lifting pulley 208, so that the lifting push wheel 207 can be extended from the upper support rod 101.

[0145] like Figure 17 As shown, the first limiting mechanism includes a lifting limit frame 3, a lifting limit rod 301 and a lifting spring 302. The lifting limit frame 3 is fixedly connected to the middle support rod 102, and the lifting limit rod 301 is slidably connected to the lifting limit frame 3. A notch is provided on the lifting top rod 206 to facilitate the insertion of the lifting limit rod 301, and a lifting spring 302 is sleeved on the lifting limit rod 301.

[0146] After the lifting push rod 206 moves upward, the lifting limit rod 301 will be stuck in the groove on the lifting push rod 206 under the action of the lifting spring 302, thereby limiting the lifting push rod 206 from returning downward. When the restriction needs to be cancelled, the lifting limit rod 301 is pulled away from the lifting push rod 206. At this time, the lifting spring 302 is compressed. When the lifting push rod 206 returns downward, the lifting spring 302 will remain compressed.

[0147] like Figure 17 、 Figure 22 and Figure 23As shown, it also includes a release mechanism for driving the lifting limit rod 301 to cancel the restriction on the lifting top rod 206. The release mechanism is connected to the support column 1. The release mechanism includes a lifting sleeve 4, a main pull rod 401, a main spring 402, a main pull rope 403, a pull rope connecting block 404, a reset pull rope 405, a reset lower guide wheel 406, a reset upper guide wheel 407 and a limit guide wheel 408. The five support columns 1 on the front side are all slidably connected with a lifting sleeve 4. The lifting sleeve 4 is fixedly connected to the upper support rod 101. The support column 1 is connected to the upper support rod 101 through the lifting sleeve 4. The lower side of the lifting sleeve 4 is slidably connected to the main pull rod 401. The main pull rod 401 is provided with a handle for easy gripping. The lower side of the main pull rod 401 is covered with a main spring 402. The two ends of the main spring 402 are respectively Connected to the main pull rod 401 and the bottom inner of the lifting sleeve 4, one end of the main pull rope 403 is connected to the main pull rod 401, and the other end of the main pull rope 403 is connected to the rope connecting block 404. The rope connecting block 404 is connected to one end of the reset pull rope 405. The interior of the front side of the upper support rod 101 is rotatably connected to the reset lower guide wheel 406, and the reset lower guide wheel 406 is provided with three guide grooves. The interior of the upper side of the upper support rod 101 is rotatably connected to the reset upper guide wheel 407. The lifting limit frame 3 is rotatably connected to the limit guide wheel 408 through the bracket. The reset pull rope 405 passes around the reset lower guide wheel 406, the reset upper guide wheel 407 and the limit guide wheel 408, and the other end of the reset pull rope 405 is connected to the lifting limit rod 301 at one end away from the lifting top rod 206.

[0148] When the lifting rod 206 is reset, the main pull rod 401 is manually released, and the main pull rod 401 is reset upward under the action of the main spring 402. At this time, since the lifting limit rod 301 is blocked by the lifting rod 206 after it is reset downward, the lifting limit rod 301 is automatically released. The reset rope 405 will be in a relatively loose state. When the lifting limit rod 301 is again stuck in the lifting push rod 206, the reset rope 405 will return to a taut state, so that the restriction can be cancelled again; the main spring 402 can be replaced with a tension spring with smaller elasticity. At this time, even if the lifting limit rod 301 is in a state blocked by the lifting push rod 206, the tension spring can also pull the main pull rod 401 downward to reset, thereby applying tension to the main pull rope 403 and the reset rope 405, so that the main pull rope 403 and the reset rope 405 are in a taut state; the lifting limit rod 301 restricts the lifting push rod 206 from resetting downward, so that the lifting top wheel 207 can remain in an extended state, and the restriction on the lifting push rod 206 can be cancelled manually by pulling the main pull rod 401, avoiding the high position of the middle support rod 102 causing difficulty for workers to directly remove the restriction, which not only speeds up work efficiency but also reduces safety hazards.

[0149] In order to facilitate the expansion of the shed cloth on both sides of the sliding health-care shed, the sliding health-care shed of this embodiment also includes a pushing mechanism for pushing the shed cloth to both sides. Figure 17 、 Figure 21 and Figure 23 As shown; the pushing mechanism cooperates with the jacking mechanism, the pushing mechanism includes a pushing guide rod 5, a pushing spring 501, a pushing push rod 502 and a push rod stop 5021. There are two pushing push rods 502 symmetrically slidably connected to the center of the lower support rod 103. The pushing push rod 502 is T-shaped, and the inner ends of the pushing push rods 502 are fixedly connected with the pushing guide rod 5, and the pushing guide rod 5 is slidingly connected to the lifting slide rod 204 on the same side. The pushing guide rod 5 is fixed with the push rod stop 5021 at one end away from the pushing push rod 5, and the pushing guide rod 5 is sleeved with a pushing spring 501, and the pushing spring 501 is located between the push rod stop 5021 and the pushing push rod 502. The pull rope connecting block 404 is connected to a second limiting mechanism for limiting the pushing guide rod 5. By limiting the pushing guide rod 5, the pushing spring 501 can be compressed, so that the pushing spring 501 can push the pushing guide rod 5 out.

[0150] The push rod 502 is initially in a state of being limited by the second limiting mechanism. When the lifting rope 201 drives the lifting slide 204 away from the support plate 1031 on the same side, the lifting slide 204 will slide on the pushing guide rod 5 in the direction away from the push rod stopper 5021, thereby compressing the pushing spring 501. When a pulling force is manually applied to the main pull rope 403 and the pull rope connecting block 404 through the main pull rod 401, the pull rope connecting block 404 will drive the second limiting mechanism to cancel the limit on the push rod 502, thereby compressing the pushing spring 501. The pushing spring 501 will push the pushing rod 502 to slide outward, so that the outer end of the pushing rod 502 will prop up the awning cloth to both sides. When the push rod stopper 5021 contacts the lifting slide bar 204, the pushing rod 502 will no longer slide outward; when the lifting tension spring 2041 drives the lifting slide bar 204 to reset, the lifting slide bar 204 will drive the pushing rod 502 to slide back into the middle support rod 102 through the push rod stopper 5021. After the pushing rod 502 is reset, the second limit mechanism will limit it again.

[0151] like Figure 17 、 Figure 23 and Figure 24 As shown, the second limiting mechanism includes a first pull rope 503, a push limit frame 504, a push upper guide wheel 505, a push limit rod 506, a limit spring 507, a second pull rope 508, a push small guide wheel 509 and a push large guide wheel 510. One end of the first pull rope 503 is connected to the pull rope connecting block 404. Two push limit frames 504 are symmetrically fixed on the middle support rod 102. The two push limit frames 504 are both located on the side away from each other of the two support plates 1031. The front push limit frame 504 is rotatably connected to the push upper guide wheel 505 through the bracket, and the push limit rod 506 is slidably connected to the push limit frame 504. The upper sleeve has a limit spring 507, the first pull rope 503 passes around the reset lower guide wheel 406 and the extension upper guide wheel 505, and the other end of the first pull rope 503 is connected to the upper end of the extension limit rod 506, and the pull rope connecting block 404 is connected to one end of the second pull rope 508. The internal symmetrical rotation of the upper side of the upper support rod 101 is connected to two small extension guide wheels 509, and the internal rotation of the rear side of the upper support rod 101 is connected to the large extension guide wheel 510. The second pull rope 508 passes around the reset lower guide wheel 406, the small extension guide wheel 509 and the large extension guide wheel 510, and the end of the second pull rope 508 away from the pull rope connecting block 404 is connected to the upper end of the extension limit rod 506 on the rear side.

[0152] When manual tension is applied to the main pull rope 403 and the pull rope connecting block 404 through the main pull rod 401, the pull rope connecting block 404 will apply tension to one end of the first pull rope 503 and the second pull rope 508. The first pull rope 503 applies an upward pulling force to the front extension limit rod 506 under the guidance of the reset lower guide wheel 406 and the push upper guide wheel 505. At the same time, the second pull rope 508 applies an upward pulling force to the rear extension limit rod 506 under the guidance of the reset lower guide wheel 406, the push small guide wheel 509 and the push large guide wheel 510. The upward movement of the extension limit rod 506 will compress the limit spring 507, so that the extension limit rod 506 will cancel the limit on the extension push rod 502. When the extension push rod 502 slides outward, the extension limit rod 506 will be blocked, so that the limit spring 507 remains In the compressed state, after the pushing rod 502 slides inward and resets, the pushing limit rod 506 will reset downward under the action of the limit spring 507, and will be stuck on the front pushing rod 502 again, so as to store force for the pushing spring 501 again; in the process of manually pulling the main pull rod 401, the first pull rope 503 and the second pull rope 508 drive the pushing limit rod 506 to cancel the limit on the lifting slide 204, and the sliding process of the lifting slide 204 is the pushing spring 501 that stores force, so that the worker can push the guide rod 5 to slide outward in the process of retracting the lifting top wheel 207, so that the tarpaulin can be pushed and unfolded to both sides. While manually pulling the main pull rod 401, the tarpaulin has been unfolded in the left and right directions. At this time, the worker is assisted by the pushing guide rod 5 to unfold the tarpaulin in the front and back directions, reducing the worker's physical labor.

[0153] In addition, the sliding health-care scaffolding in this embodiment also includes a lifting mechanism for adjusting the height, the lifting mechanism is connected to the lower support rod 103, the lifting mechanism includes a lifting guide plate 6, a lifting guide rod 601, a lifting limit rod 602, a lifting guide frame 603 and an electric push rod 605, the two support plates 1031 on the middle lower support rod 103 are fixedly connected with the lifting guide plate 6, the lifting guide plate 6 is centrally symmetrically connected with two lifting guide rods 601, and two lifting limit rods 602 are provided at both ends of the lifting guide plate 6. The structure of the lifting limit rod 602 is the same as the structure of the extension limit rod 506 and the limit spring 507. The structure is similar, the lifting guide rod 601 is slidably connected to the lifting guide frame 603, and the lifting guide frame 603 is provided with two limit slots 604. The lifting limit rod 602 is clamped with the lifting guide frame 603 through the limit slots 604. Counting from left to right, the support plates 1031 on the second and fourth lower support rods 103 are provided with slides for facilitating the embedding of the lifting guide frame 603. The other end of the lifting guide rod 601 is fixedly connected to the outermost support plate 1031 in the left and right directions. Electric push rods 605 are installed on the two support columns 1 in the middle position, and the telescopic shaft of the electric push rod 605 is connected to the upper lower support rod 103.

[0154] The initial state of the lifting guide frame 603 is that it is clamped on the lifting limit rod 602. When the support column 1 is manually pulled to the left and right sides to unfold, the support plate 1031 on the outermost lower support rod 103 in the left and right directions will drive the lifting guide rod 601 to slide out of the lifting guide plate 6. The support plates 1031 on the two adjacent lower support rods 103 will first slide on the lifting guide plate 6. When the support plates 1031 begin to disengage from the lifting guide plate 6, they will contact the lifting guide frame 603 on the same side, and the lifting guide frame 603 will It slides in the notch on the support plate 1031 and is embedded in the support plate 1031. Then, as the support plate 1031 continues to move to the left and right, the lifting guide frame 603 overcomes the elastic limit of the lifting limit rod 602, thereby driving the lifting guide frame 603 to move synchronously in the direction away from the lifting guide plate 6. The support plate 1031 can fully fit with the lifting guide rod 601 through the lifting guide frame 603. The initial height of the support column 1 is relatively low. When the shed cloth is covered, the electric push rod 605 can be controlled to extend. , the electric push rod 605 drives the lifting guide plate 6 and the lifting guide rod 601 to move upward through the middle lower support rod 103, thereby driving the other four lower support rods 103 to move upward synchronously; when the worker pushes the support column 1 to reset, the outermost support plate 1031 in the left and right directions will push the lifting guide rod 601 to slide back into the lifting guide plate 6, and the support plate 1031 on the adjacent lower support rod 103 will slide onto the lifting guide plate 6. Since the lifting limit rod 602 has elastic force, when the support plate 10 When sliding onto the support guide frame 31, the lifting guide frame 603 will slide off from the support plate 1031, and then the lifting guide frame 603 will be manually pressed onto the lifting limit rod 602, so that the lifting limit rod 602 is stuck in the limit groove 604, so that the lifting guide frame 603 can cooperate with the support plate 1031 again; the electric push rod 605 adjusts the height of the center support rod 102 through the lifting guide plate 6 and the lifting guide rod 601, so that it is convenient to adjust according to the height of the box beam and it is convenient for workers to put up the shed cloth.

[0155] like Figure 26 As shown, it also includes a moving mechanism that facilitates the movement of the support column 1. The moving mechanism includes a roller frame 7, a moving wheel 701, a limiting ring 702, a limiting block 7021, a limiting pressure rod 703 and a limiting rocker bar 704. The lower end of the support column 1 is rotatably connected to the roller frame 7, and the moving wheel 701 is rotatably connected to the roller frame 7. The roller frame 7 of the two support columns 1 located in the middle is slidably connected to the limiting ring 702 in the vertical direction, and the limiting block 7021 is fixed to the limiting ring 702. The roller frame 7 is slidably connected to the limiting pressure rod 703 in the vertical direction, and the roller frame 7 is rotatably connected to the limiting rocker bar 704. The moving mechanism can be replaced by an existing universal wheel structure.

[0156] The moving wheel 701 can be used to facilitate the movement of the support column 1. When the rotation of the moving wheel 701 needs to be restricted, the limiting rocker arm 704 is swung counterclockwise downward, thereby squeezing the limiting ring 702 downward through the limiting pressure rod 703. The limiting ring 702 drives the limiting block 7021 to press tightly on the moving wheel 701, thereby restricting the rotation of the moving wheel 701. Since the force arm between the limiting pressure rod 703 and the rotation axis of the limiting rocker arm 704 is short, sufficient pressure can be provided for the limiting block 7021. When the restriction needs to be released, the side of the limiting rocker arm 704 away from the roller frame 7 can be manually rotated upward, so that the limiting block 7021 no longer presses the roller.

[0157] like Figure 18 、 Figure 27 and Figure 28 As shown, it also includes an atomizing mechanism for moisturizing the box beam, the atomizing mechanism includes a placement plate 8, a placement slider 801, a rack 802, a gear 803, a placement shaft 804, a placement clamping rod 805, a clamping rod handle 806, a placement limit rod 807 and a plasma centrifugal atomizer 808, the placement plate 8 is symmetrically connected to two placement sliders 801 in a sliding manner, the placement sliders 801 are fixed with racks 802, the placement plate 8 is rotatably connected with a gear 803, the gear 803 is simultaneously engaged with the racks 802 on both sides, the placement slider 80 1 is rotatably connected to a placement shaft 804, and a square block is fixed on the placement shaft 804. The square block can be positioned on the second fork frame 106. The upper end of the placement shaft 804 is fixed with a placement clamping rod 805, and the lower end of the placement shaft 804 on the right is fixed with a clamping rod handle 806. A placement limit rod 807 for limiting the placement slider 801 is installed on the placement plate 8, and a plasma centrifugal atomizer 808 in the prior art is installed at the lower end of the placement plate 8. The plasma centrifugal atomizer 808 is connected to the intelligent electric controller equipment in the prior art.

[0158] When the box beam is moisturized in the prior art, it is usually necessary to stand at a height to install the atomizer on the telescopic frame by screws. The installation efficiency is low, the workers have to work with their heads up for a long time, which consumes physical strength, and there are certain safety hazards. When the second fork frame 106 is unfolded, the right side placement card rod 805 is manually rotated ninety degrees by the card rod handle 806, so that the two placement card rods 805 are vertical, and then the left side placement card rod 805 is clamped on the upper side of the second fork frame 106 near the rotating shaft, so that the left side placement card rod 805 is placed on the second fork frame 106, and then the placement card rod 805 handle is rotated ninety degrees, thereby driving the right side placement card rod 805 to rotate ninety degrees, and the two placement card rods 805 are parallel, and then the two placement card rods 805 are pushed in the direction of approaching each other, so that the right side placement card rod 805 can be placed on the other side of the second fork frame 106, and through the placement limit rod 8 07 limits the placement slider 801 on the right to prevent it from falling off, and then connects the existing water pipe to the water inlet of the plasma centrifugal atomizer 808, and connects the plasma centrifugal atomizer 808 to the electric controller in the prior art, and controls the opening and closing state of the plasma centrifugal atomizer 808 through the intelligent electric controller to facilitate intelligent moisturizing treatment of the box girder; when the maintenance is completed, the two placement sliders 801 are manually pulled away from each other by overcoming the elastic force of the placement limit rod 807, and then the placement card rod 805 on the right is rotated ninety degrees through the card rod handle 806, and then the placement plate 8 can be removed from the second fork frame 106; the cooperation of the placement card rod 805 and the second fork frame 106 facilitates the workers to quickly install the plasma centrifugal atomizer 808, and by connecting with the intelligent electric controller, intelligent moisturizing maintenance treatment can be achieved, thereby improving work efficiency.

[0159] 3. Benefit Analysis

[0160] 1. Economic benefits:

[0161] This box girder centrifugal intelligent atomization sliding curing shed technology is analyzed through the maintenance cost of finished products from the general process and new process: based on a construction period of 4 months, a 20-meter box girder has a total of 128 beams.

[0162] Option 1: Straw mat health care

[0163] Labor cost: The labor cost is 1 person per day, for a total of 120 workers. The total cost is 120 days * 200 yuan / day, which is 24,000 yuan.

[0164] Material Cost: For general maintenance and repair work, straw mats for single beams are 2.5m x 2m, costing 85 yuan per mat. Based on a 7-day construction schedule, 70 mats are needed for one beam. Using 70 mats measuring 2 x 2.5m to cover 14 box beams, 128 box beams require 640 mats. The cost of these mats is 640 mats x 85 yuan, for a total of 54,400 yuan. Water consumption is 15 tons per day.

[0165] Machinery costs: Waterwheel unit cost is 12,000 yuan / month*48,000 yuan for 4 months.

[0166] Fuel cost: 200 yuan / day * 30 days is 6,000 yuan / month; then 4 months * 6,000 yuan / day is 24,000 yuan.

[0167] Total: The total cost is 150,400 yuan.

[0168] Option 2: Box beam centrifugal intelligent atomization sliding health shed health

[0169] Labor cost: 200 yuan per person per day * 24,000 yuan for 120 days.

[0170] Material cost: One-time investment in 5 health-care sheds, each costing 16,000 yuan, for a total cost of 80,000 yuan; water consumption is 3 tons / day.

[0171] Machinery costs: Agricultural vehicles and fuel costs are 5,000 yuan / month * 20,000 yuan for April.

[0172] Total: The total cost is 124,000 yuan.

[0173] The above cost analysis shows that the box girder centrifugal intelligent atomization sliding curing shed technology is reused twice, and after two turnovers based on the beam production scale of 128 box girders, the direct construction cost of the curing shed is reduced to 40,000 yuan. The total cost is reduced to 84,000 yuan, saving 66,400 yuan compared to conventional straw mat curing.

[0174] 2. Social benefits:

[0175] This box girder centrifugal intelligent atomization sliding curing shed technology reduces safety risks for inspectors and improves the efficiency of maintenance personnel, achieving a people-oriented approach. It reduces labor intensity during operation and significantly improves the effectiveness of on-site curing operations, providing insulation, water retention, and moisture retention, significantly increasing strength and simplifying construction and curing operations. It improves the overall curing effect of concrete components and is highly reliable, advanced, and practical.

Claims

1. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed is characterized in that: The steps include: Step A: transport the sliding curing scaffold to the box beam and cover the sliding curing scaffold with a fully enclosed scaffolding curtain so that the box beam is completely enclosed in the sliding curing scaffold; Step B: Installing a plasma centrifugal atomizer on the sliding curing scaffolding so that the fluid nozzle of the plasma centrifugal atomizer faces the box beam; Step C: Connect the controller to the plasma centrifugal atomizer and debug; Step D: starting the plasma centrifugal atomizer and using a controller to control the temperature and humidity in the sliding curing shed to perform curing; The sliding health-care scaffolding comprises a support column (1), an upper support rod (101), a middle support rod (102), a lower support rod (103), a support plate (1031), a first fork-shaped frame (104) and a support sleeve (105); and further comprises a second fork-shaped frame (106), a connecting rod (2), a lifting top rod (206), a lifting top wheel (207), a lifting pulley (208), a lifting mechanism and a first limiting mechanism. Each group of support columns (1) is connected to an upper support rod (101), a middle support rod (102) and a lower support rod (103) are fixedly connected to the upper support rod (101), and two support plates (1031) are symmetrically fixedly connected to the lower support rod (103). Two adjacent groups of support columns (1) are connected to the upper support rod (101). A first fork-shaped frame (104) is connected between the two forks via a bracket sliding sleeve (105), a second fork-shaped frame (106) is rotatably connected to the middle support rod (102), two adjacent second fork-shaped frames (106) are rotatably connected via a connecting rod (2), a lifting top rod (206) is slidably connected to the middle support rod (102), a lifting top wheel (207) and a lifting pulley (208) are respectively installed at the upper and lower ends of the lifting top rod (206), a jacking mechanism is connected to the connecting rod (2), and the jacking mechanism will drive the lifting top rod (206) to rise upward during the process of unfolding the second fork-shaped frame (106), and a first limiting mechanism for limiting the resetting of the lifting top rod (206) is connected to the middle support rod (102).

2. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 1 is characterized in that: The lifting mechanism includes a lifting rope (201), a lifting connection block (202), a lifting guide wheel (203), a lifting slide bar (204), a lifting tension spring (2041) and a trapezoidal rod (205). One end of the lifting rope (201) is connected to the connecting rod (2). The lower support rod (103) is rotatably connected to the lifting guide wheel (203) through the lifting connection block (202). The support plate (1031) is also rotatably connected to the lifting guide wheel (203). The lifting rope (201) is passed around from the upper side of the same side. The lower support rod (103) is slidably connected to the lifting slide bar (204). The other end of the lifting rope (201) is passed around the lifting guide wheel (203) on the same side and is connected to the lifting slide bar (204) on the opposite side. A lifting tension spring (2041) is connected between the lifting slide bar (204) and the support plate (1031). The trapezoidal rod (205) is fixed to the lifting slide bar (204).

3. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 1 is characterized in that: The first limiting mechanism comprises a lifting limiting frame (3), a lifting limiting rod (301) and a lifting spring (302); the middle support rod (102) is slidably connected to the lifting limiting rod (301) via the lifting limiting frame (3); and the lifting spring (302) is sleeved on the lifting limiting rod (301).

4. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 3 is characterized in that: The sliding health-care scaffolding further comprises a release mechanism for driving the lifting limit rod (301) to cancel the restriction on the lifting top rod (206), the release mechanism being connected to the support column (1), the release mechanism comprising a lifting sleeve (4), a main pull rod (401), a main spring (402), a main pull rope (403), a pull rope connecting block (404), a reset pull rope (405), a reset lower guide wheel (406), a reset upper guide wheel (407) and a limit guide wheel (408), a lifting sleeve (4) being slidably connected in the support column (1), the lifting sleeve (4) being fixedly connected to the upper support rod (101), a main pull rod (401) being slidably connected on the lifting sleeve (4), a main spring ( 402), one end of the main pull rope (403) is connected to the main pull rod (401), the other end of the main pull rope (403) is connected to the pull rope connecting block (404), and one end of the reset pull rope (405) is connected to the pull rope connecting block (404). The upper support rod (101) is rotatably connected to the reset lower guide wheel (406) and the reset upper guide wheel (407), and the lifting limit frame (3) is rotatably connected to the limit guide wheel (408). The reset pull rope (405) passes around the reset lower guide wheel (406), the reset upper guide wheel (407) and the limit guide wheel (408), and the other end of the reset pull rope (405) is connected to the end of the lifting limit rod (301) away from the lifting top rod (206).

5. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 4 is characterized in that: The sliding health-care shed also includes a pushing mechanism for pushing the shed cloth to both sides and expanding it. The pushing mechanism cooperates with the lifting mechanism. The pushing mechanism includes a pushing guide rod (5), a pushing spring (501), a pushing top rod (502) and a top rod stopper (5021). The lower support rod (103) is slidably connected to the pushing top rod (502). The pushing top rod (502) is fixedly connected to the pushing guide rod (5) which is slidably connected to the lifting slide rod (204). The pushing guide rod (5) is fixedly connected to the top rod stopper (5021). The pushing guide rod (5) is sleeved with a pushing spring (501). The pull rope connecting block (404) is connected to a second limiting mechanism for limiting the pushing guide rod (5).

6. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 5 is characterized in that: The second limiting mechanism includes a first pull rope (503), a push limit frame (504), a push upper guide wheel (505), a push limit rod (506), a limit spring (507), a second pull rope (508), a push small guide wheel (509) and a push large guide wheel (510), the pull rope connecting block (404) is connected to one end of the first pull rope (503), two push limit frames (504) are fixedly connected to the lower support rod (103), the push limit frame (504) is slidably connected to the push limit rod (506), the push limit rod (506) is sleeved with a limit spring (507), the push limit frame (504) is rotatably connected to the push upper guide wheel (505), the first pull rope (503) is connected to the push limit rod (506), the second pull rope (508) is connected to the push small guide wheel (509) and the second pull rope (509) is connected to the push large guide wheel (510), the second pull rope (503) is connected to the push limit rod (506), the second pull rope (508) is connected to the push limit rod (506), the second pull rope (508) is connected to the push small guide wheel (509) and the second pull rope (510) is connected to the push limit rod (506), the second pull rope (508) is connected to the push limit rod (509 ... limit rod (510), the second pull rope (508) is connected to the push limit rod (510), the second pull rope (508) is connected to the push limit rod (510), the second pull rope (508) A pull rope (503) passes around the reset lower guide wheel (406) and the extension upper guide wheel (505), and the other end of the first pull rope (503) is connected to the extension limit rod (506), one end of the second pull rope (508) is connected to the pull rope connecting block (404), the upper support rod (101) is rotatably connected to the extension small guide wheel (509), and the upper support rod (101) is rotatably connected to the extension large guide wheel (510), the second pull rope (508) passes around the reset lower guide wheel (406), the extension small guide wheel (509) and the extension large guide wheel (510), and the end of the second pull rope (508) away from the pull rope connecting block (404) is connected to another extension limit rod (506).

7. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 1 is characterized in that: The sliding health-care scaffold further comprises a lifting mechanism for adjusting the height, the lifting mechanism being connected to the lower support rod (103), the lifting mechanism comprising a lifting guide plate (6), a lifting guide rod (601), a lifting limit rod (602), a lifting guide frame (603) and an electric push rod (605), a support plate (1031) on the middle lower support rod (103) being fixedly connected to the lifting guide plate (6), and a lifting guide rod (601) being slidably connected to the lifting guide plate (6). A lifting limit rod (602) is provided on the lifting guide plate (6), a lifting guide frame (603) is slidably connected to the lifting guide rod (601), and a slideway is provided on the support plate (1031) to facilitate the embedding of the lifting guide frame (603). The lifting guide rod (601) is fixedly connected to the outermost support plate (1031), and an electric push rod (605) is installed on the support column (1), and the electric push rod (605) is connected to the upper lower support rod (103).

8. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 1 is characterized in that: The sliding health-care shed further comprises a moving mechanism for facilitating the movement of the support column (1), the moving mechanism comprising a roller frame (7), a moving wheel (701), a limiting ring (702), a limiting block (7021), a limiting pressure rod (703) and a limiting swing rod (704), wherein the support column (1) is rotatably connected to the roller frame (7), the moving wheel (701) is rotatably connected to the roller frame (7), the roller frame (7) is slidably connected to the limiting ring (702), the limiting block (7021) is fixedly connected to the limiting ring (702), the roller frame (7) is slidably connected to the limiting pressure rod (703), and the roller frame (7) is rotatably connected to the limiting swing rod (704).

9. The technical method for curing box beams using a centrifugal intelligent atomization sliding shed according to claim 1 is characterized in that: The sliding health-care scaffold further comprises an atomizing mechanism for moisturizing the box beam, the atomizing mechanism comprising a placement plate (8), a placement slider (801), a rack (802), a gear (803), a placement shaft (804), a placement clamping rod (805), a clamping rod handle (806), a placement limit rod (807) and a plasma centrifugal atomizer (808), two placement sliders (801) are slidably connected to the placement plate (8), a rack (802) is fixed to the placement slider (801), and the placement The plate (8) is rotatably connected to a gear (803), which is simultaneously engaged with a rack (802). The placement slider (801) is rotatably connected to a placement shaft (804), and a placement clamping rod (805) and a clamping rod handle (806) are fixed to the placement shaft (804). A placement limit rod (807) is installed on the placement plate (8). A plasma centrifugal atomizer (808) is installed at the lower end of the placement plate (8), and the plasma centrifugal atomizer (808) is connected to an intelligent electric controller.

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