Special mould for producing UHPC (Ultra High Performance Concrete) disassembly-free floor support plate

Abstract

The invention discloses a special mold for UHPC (Ultra High Performance Concrete) disassembly-free floor support plate production, and relates to the technical field of floor support plate production, the special mold comprises a mold assembly and a plurality of stabilizing piers, demolding assemblies are arranged at the positions, close to four corners, of the bottom of the mold assembly, and the mold assembly comprises a mold bottom plate. According to the special mold for producing the UHPC disassembly-free floor support plate, the two hydraulic rods are controlled to be started through the controller, so that the two positioning buttons drive the permanent magnet to rotate, the magnetic pole of the permanent magnet is changed, and when the permanent magnet rotates to be horizontal, magnetic lines of force can pass through materials with good magnetic conductivity, such as electrical soft iron and cast iron blocks; a relatively complete closed magnetic circuit is formed between the cast iron plate and the cast iron block, and magnetic lines effectively penetrate through the cast iron plate, so that strong attraction force is generated to the cast iron plate, four corners are attracted downwards at the same time, and demolding can be realized under the strong magnetic attraction effect under the condition that a mold bottom plate and a floor support plate are not damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of floor deck production, in particular to a special mould for producing UHPC non-disassembly floor decks. Background Art

[0002] UHPC is ultra-high performance concrete. The demolition-free floor deck is a floor deck that does not need to be demolished after the concrete is poured. It can participate in the structural load as part of the floor slab. Common forms include reinforced concrete composite slabs, steel truss fixed formwork floor decks, steel truss floor decks, etc. It has the advantages of convenient construction, saving construction time, and reducing waste of formwork materials. It can effectively improve the efficiency and quality of construction, reduce costs, and meet energy-saving and environmental protection requirements.

[0003] In the prior art, such as the Chinese patent publication number: CN220348658U, a mold for the production of non-disassembly steel truss floor decking is disclosed, including a base plate, on which two oppositely arranged first angle steels are provided, the first angle steels including a first abutting edge abutting against the base plate and a first retaining edge capable of enclosing mortar; two second angle steels are provided between the two first angle steels, the second angle steels including a second abutting edge abutting against the base plate and a second retaining edge capable of enclosing mortar; a cavity for forming the floor decking is formed between the two first retaining edges and the two second retaining edges; a plurality of plug welding holes are respectively opened on the first abutting edge and the second abutting edge, and the first angle steel and the second angle steel are respectively welded and fixed to the base plate through the plug welding holes.

[0004] However, in the existing technology, UHPC has a low water-cement ratio and is mixed with components such as silica fume and steel fiber. After hardening, the surface porosity is extremely low, and the mechanical bite force with the mold surface is significantly higher than that of ordinary concrete. Therefore, the molds used in the production of UHPC non-demolition floor decking are difficult to demold after the floor decking is formed. However, the traditional demolding method is to use a crowbar to pry open the mold, which will cause the mold to overturn and easily damage the formed floor decking.

[0005] Therefore, we proposed a special mold for the production of UHPC non-disassembly floor decking to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a special mold for the production of UHPC non-disassembly floor decking, so as to solve the problem that the traditional demoulding method proposed in the above background technology may cause the mold to overturn and the floor decking to be damaged.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a special mold for producing UHPC non-demolition floor decking, comprising a mold assembly and a plurality of stabilizing piers, wherein a demolding assembly is provided at the bottom of the mold assembly near the four corners, the mold assembly comprises a mold base plate, a group of positioning blocks are fixedly connected to each side of the mold base plate, and side plates are mounted between the tops of each group of positioning blocks, and a cast iron plate is fixedly connected to the bottom of the mold base plate near the four corners, and the top surfaces of the plurality of side plates and the mold base plate are coated with polytetrafluoroethylene coating and polyurethane coating, and the polytetrafluoroethylene is used to reduce the demolding resistance of concrete, and the polyurethane is used to withstand friction during concrete pouring; the demolding assembly comprises two cast iron blocks, the two cast iron blocks are symmetrically arranged, the tops of the two cast iron blocks are provided with adsorption surfaces, the inner walls of the two cast iron blocks are fixedly connected with electrical soft iron, brass is fixedly connected between the two cast iron blocks, and a permanent magnet is provided between the two electrical soft iron blocks.

[0008] Preferably, a fixing plate is fixedly connected between the two sides of the two cast iron blocks, and a rotating hole is provided on the outer surface of the two fixing plates. A protective block and a positioning button are fixedly connected at the center of both sides of the permanent magnet, and the outer surfaces of the protective block and the positioning button are rotatably connected to the inner walls of the two rotating holes respectively.

[0009] Preferably, the outer surface of the positioning button is fixedly connected to a connecting shaft, the outer surface of the connecting shaft is rotatably connected to a pull rod, and a hydraulic rod is provided between opposite ends of every two adjacent pull rods.

[0010] Preferably, the outer surface of each side panel is fixedly connected to a plurality of supporting oblique blocks, the position of each supporting oblique block corresponds to the position of each positioning block, both ends of each side panel are fixedly connected to mounting blocks, a reinforcing triangular plate is fixedly connected between each mounting block and the corresponding side panel, and every two adjacent mounting blocks are fixedly installed by fastening bolts.

[0011] Preferably, the outer surfaces of the two side panels are fixedly connected to a plurality of support rods, a positioning slot is provided on the top of each stabilizing pier, the outer surface of each support rod is slidably connected to the inner wall of each positioning slot, the bottom of the mold base plate is fixedly connected to cast iron plates near the four corners, each of the cast iron plates corresponds to each group of cast iron blocks, and the bottom of the mold base plate is fixedly connected to a reinforcement pad near each cast iron plate.

[0012] Preferably, the outer surface of each of the stabilizing piers is fixedly connected to a bearing base plate, and a mounting plate is fixedly connected between each two of the bearing base plates. A strain gauge sensor is arranged in the middle of the bottom of the mold base plate, and a controller is arranged on the top of one of the mounting plates.

[0013] Preferably, the top of each of the supporting base plates is fixedly connected to a support assembly, and the support assembly includes two first movable connecting parts, and the opposite sides of the two first movable connecting parts are rotatably connected to a group of movable rods, and two second movable connecting parts are fixedly connected between the two groups of movable rods. A hydraulic cylinder is arranged between the two second movable connecting parts, and the bottom of the first movable connecting part located below is fixedly connected to a base, and each of the support assemblies is arranged under the corresponding reinforcement pad.

[0014] Preferably, a floor deck assembly is provided on the top of the mold bottom plate, and the floor deck assembly includes a plurality of trusses, and a fiber cement flat plate is cast between the plurality of trusses, and the truss includes two lower chord steel bars, and a plurality of web steel bars are welded to the tops of the two lower chord steel bars, and an upper chord steel bar is welded between the tops of the plurality of web steel bars, and a plurality of metal connectors are fixedly connected between the outer surfaces of the two lower chord steel bars, and support vertical bars are welded to both ends of the upper chord steel bars, and support transverse bars are welded to one end of the two support vertical bars.

[0015] Preferably, a curing assembly is fixedly connected to the bottom of the mold base plate, and the curing assembly includes an insulation plate and a water pump. Two drainage pipes are provided inside the insulation plate, and a plurality of heat conduction pipes are fixedly connected between the outer surfaces of the two drainage pipes, and the drainage pipes and the heat conduction pipes are made of metal copper.

[0016] Preferably, a water suction pipe is fixedly connected between the output end of the water pump and one end of one of the drainage pipes, the input end of the water pump is fixedly connected to a delivery pipe, a heating coil is provided at one end of the delivery pipe, one end of the heating coil is fixedly connected to a connecting pipe, one end of the other drainage pipe is fixedly connected to a water inlet pipe, one end of the connecting pipe and one end of the water inlet pipe are fixedly connected to a water tank, and the water tank and water pump are respectively fixedly mounted on the top of two mounting plates.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When in use, support the side of the floor decking plate, and control all hydraulic cylinders to extend simultaneously, so that multiple support components descend at the same time. The controller controls and starts the two hydraulic rods, so that the two positioning buttons drive the permanent magnet to rotate, and the magnetic poles of the permanent magnet change. When the permanent magnet rotates to the horizontal position, the magnetic lines of force can pass through materials with good magnetic conductivity such as electrical soft iron and cast iron blocks, forming a relatively complete closed magnetic circuit between the cast iron plate and the cast iron block. The magnetic lines of force effectively pass through the cast iron plate, thereby generating a strong attraction to the cast iron plate, and the four corners are simultaneously adsorbed downward. Under the strong magnetic attraction, demoulding can be achieved without damaging the mold base and floor decking plate. However, when the permanent magnet is vertical, due to the very poor magnetic conductivity of brass, its attraction to the cast iron plate is very weak, and the cast iron plate cannot be adsorbed.

[0019] 2. During use, the controller controls the four hydraulic cylinders to start simultaneously, thereby driving the four support components to rise and fall simultaneously. By sliding the support rods into the card slots, multiple stable piers support the formed floor decking to facilitate the demoulding of the mold base. In addition, the four side panels are spliced ​​and installed with the mold base, and the two are fixed together with fastening bolts. The reinforced triangular plates can prevent the contact corners of the side panels from being deformed due to excessive pressure. The bottom center of the mold base is monitored by a strain gauge sensor. The bottom center of the mold base is where concentrated pressure is applied. When deformation of the mold base is detected, the poured UHPC needs to be dispersed to the side.

[0020] 3. During use, the upper chord, web, and lower chord steel bars are welded into a truss and arranged on the mold base. The UHPC is then evenly poured. The water pump is activated to pump water from the water tank and heat it, maintaining the UHPC within a suitable hydration temperature range. Hot water circulates within the drainage and heat pipes. Through heat conduction between the drainage and heat pipes and the mold base, the heat is evenly transferred to the mold base surface and then to the UHPC above. This reduces the temperature difference between the inside and outside of the UHPC and reduces the risk of temperature stress cracking. Furthermore, hydration of the UHPC releases water, and the increased surface temperature of the heated mold base slightly increases the evaporation rate of the water at the bottom of the UHPC. However, due to the density of the UHPC and its close fit with the mold base, the evaporated water vapor creates a localized moist environment between the bottom of the UHPC and the mold base, reducing water loss from the bottom. Furthermore, the stable temperature environment slows the overall water loss rate, aiding moisture retention and effectively maintaining the UHPC. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first-perspective stereoscopic image of a special mold for producing a UHPC non-disassembly floor deck according to the present invention;

[0022] Figure 2This is a second perspective view of a special mold for producing a UHPC non-disassembly floor deck according to the present invention;

[0023] Figure 3 This is a partial three-dimensional diagram of a mold assembly of a special mold for producing UHPC non-disassembly floor decking according to the present invention;

[0024] Figure 4 This is a perspective view of the structure of the floor deck assembly of a special mold for producing UHPC non-disassembly floor decks according to the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 This is a third-perspective perspective view of a special mold for producing a UHPC non-disassembly floor deck according to the present invention;

[0027] Figure 7 This is a perspective view of the partial structure of the curing component of a special mold for producing UHPC non-disassembly floor decking according to the present invention;

[0028] Figure 8 This is a schematic diagram of the operating structure of a demoulding component of a special mold for producing UHPC non-demolition floor decking according to the present invention;

[0029] Figure 9 This is a perspective view of the partial structure of the demoulding component of a special mold for producing UHPC non-demolition floor decking according to the present invention;

[0030] Figure 10 This is a three-dimensional diagram of the support component part of a special mold for producing UHPC non-disassembly floor decking according to the present invention.

[0031] In the picture:

[0032] 1. Floor deck assembly; 101. Upper chord reinforcement; 102. Lower chord reinforcement; 103. Web reinforcement; 104. Metal connector; 105. Support vertical reinforcement; 106. Support horizontal reinforcement; 107. Fiber cement slab; 2. Mold assembly; 201. Mold base plate; 202. Positioning block; 203. Side plate; 204. Support oblique block; 205. Support rod; 206. Cast iron plate; 207. Reinforcement pad; 208. Reinforcement triangle plate; 209. Mounting block; 3. Demolding assembly; 301. Cast iron block; 302. Electrical soft iron; 303. Fixing plate; 304. Rotary hole; 305. Permanent magnet; 306. Brass; 307. Protective block; 3 08. Adsorption surface; 309. Positioning button; 310. Connecting shaft; 311. Pull rod; 312. Hydraulic rod; 4. Support assembly; 401. Hydraulic cylinder; 402. Base; 403. First movable connection; 404. Movable rod; 405. Second movable connection; 5. Maintenance assembly; 501. Insulation plate; 502. Heat pipe; 503. Drainage pipe; 504. Water tank; 505. Water inlet pipe; 506. Water pump; 507. Suction pipe; 508. Delivery pipe; 509. Heating coil; 510. Connecting pipe; 6. Stabilizing pier; 61. Card slot; 7. Load-bearing base plate; 8. Mounting plate; 9. Strain gauge sensor; 10. Controller. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Example 1: Reference Figures 1-10As shown, the present invention provides a technical solution: a special mold for the production of UHPC non-demolition floor decking, including a mold assembly 2 and a plurality of stabilizing piers 6, the bottom of the mold assembly 2 is provided with a demoulding assembly 3 near the four corners, the mold assembly 2 includes a mold base 201, each side of the mold base 201 is fixedly connected to a group of positioning blocks 202, the tops of each group of positioning blocks 202 are clamped and installed with side plates 203, the bottom of the mold base 201 is fixedly connected to a cast iron plate 206 near the four corners, the top surfaces of the plurality of side plates 203 and the mold base 201 are coated with polytetrafluoroethylene coating and polyurethane coating, and the polytetrafluoroethylene is used to reduce the demoulding resistance of the concrete, and the polyurethane is used to withstand Friction during concrete pouring; The demoulding component 3 includes two cast iron blocks 301, the two cast iron blocks 301 are symmetrically arranged, the tops of the two cast iron blocks 301 are provided with adsorption surfaces 308, the inner walls of the two cast iron blocks 301 are fixedly connected with electrical soft iron 302, the two cast iron blocks 301 are fixedly connected with brass 306, the two electrical soft irons 302 are provided with permanent magnets 305, the two sides of the two cast iron blocks 301 are fixedly connected with fixed plates 303, the outer surfaces of the two fixed plates 303 are provided with rotating holes 304, and the centers of the two sides of the permanent magnet 305 are respectively fixedly connected with protective blocks 307 and positioning buttons 309, and the outer surfaces of the protective blocks 307 and the positioning buttons 309 are fixedly connected. They are respectively rotatably connected to the inner walls of the two rotating holes 304, the outer surface of the positioning button 309 is fixedly connected to the connecting shaft 310, the outer surface of the connecting shaft 310 is rotatably connected to the pull rod 311, and a hydraulic rod 312 is set between the opposite ends of each two adjacent pull rods 311. The top of each supporting base plate 7 is fixedly connected to the support assembly 4, and the support assembly 4 includes two first movable connecting members 403, and the opposite sides of the two first movable connecting members 403 are rotatably connected to a group of movable rods 404. Two second movable connecting members 405 are fixedly connected between the two groups of movable rods 404. A hydraulic cylinder 401 is set between the two second movable connecting members 405, and the first movable connecting member 403 is located below. 3 is fixedly connected to the bottom of the base 402, each support assembly 4 is arranged under the corresponding reinforcement pad 207, and the top of the mold bottom plate 201 is provided with a floor deck assembly 1, which includes a plurality of trusses, and a fiber cement flat plate 107 is cast between the plurality of trusses. The truss includes two lower chord steel bars 102, and the tops of the two lower chord steel bars 102 are welded with a plurality of web steel bars 103, and the tops of the plurality of web steel bars 103 are welded with an upper chord steel bar 101. A plurality of metal connectors 104 are fixedly connected between the outer surfaces of the two lower chord steel bars 102, and support vertical bars 105 are welded at both ends of the upper chord steel bar 101, and support transverse bars 106 are welded at one end of the two support vertical bars 105.

[0035] In this embodiment, when in use, UHPC is evenly poured inside the mold formed by the side panels 203 and the mold bottom plate 201, so that the truss and the UHPC are solidified into one. By supporting the side edges of the floor deck, the side panels 203 and the UHPC are adhered to each other, and then all the hydraulic cylinders 401 are extended at the same time by the controller 10, so that the multiple support components 4 are lowered at the same time, so that the tops thereof are separated from the reinforcement pads 207. Then, the floor deck and the mold bottom plate 201 are in a suspended state. At this time, the two hydraulic rods 312 are started by the controller 10, so that the two hydraulic rods 312 are contracted at the same time. The contracted hydraulic rods 312 drive the two pull rods 311 to retract toward the middle, thereby pulling the two connecting shafts 310, and then driving the two positioning buttons 309 to rotate. When the positioning button 309 rotates, it drives the permanent magnet 305 to rotate, and the magnetic poles of the permanent magnet 305 are generated. When the permanent magnet 305 rotates to the horizontal position, the magnetic lines of force can pass through the electrical soft iron 302, the cast iron block 301 and other materials with good magnetic conductivity, forming a relatively complete closed magnetic circuit between the cast iron plate 206 and the cast iron block 301. The magnetic lines of force effectively pass through the cast iron plate 206, thereby generating a strong attraction to the cast iron plate 206, and the four corners are simultaneously adsorbed downward. Under the strong magnetic attraction, demoulding can be achieved without damaging the mold bottom plate 201 and the floor deck. However, when the permanent magnet 305 is vertical, due to the very poor magnetic conductivity of the brass 306, the distribution of the magnetic lines of force of the permanent magnet 305 is not conducive to forming an efficient closed magnetic circuit between the cast iron block 301, the electrical soft iron 302 and the cast iron plate 206. At this time, the magnetic lines of force passing through the cast iron plate 206 are relatively few, so the attraction to the cast iron plate 206 is very weak, and therefore the cast iron plate 206 cannot be adsorbed.

[0036] Example 2: Figures 1-10As shown, the outer surface of each side panel 203 is fixedly connected to a plurality of supporting oblique blocks 204, and the position of each supporting oblique block 204 corresponds to the position of each positioning block 202. Both ends of each side panel 203 are fixedly connected to a mounting block 209, and a reinforcing triangular plate 208 is fixedly connected between each mounting block 209 and the corresponding side panel 203. Every two adjacent mounting blocks 209 are fixedly installed by fastening bolts, wherein the outer surfaces of the two side panels 203 are fixedly connected to a plurality of supporting rods 205, and the top of each stabilizing pier 6 is provided with a card slot 61, and each supporting The outer surface of the support rod 205 is slidably connected to the inner wall of each card slot 61, and the bottom of the mold base plate 201 is fixedly connected to a cast iron plate 206 near the four corners. Each cast iron plate 206 corresponds to each group of cast iron blocks 301. The bottom of the mold base plate 201 is fixedly connected to a reinforcement pad 207 near each cast iron plate 206. The outer surface of each stabilizing pier 6 is fixedly connected to a bearing base plate 7. A mounting plate 8 is fixedly connected between each two bearing base plates 7. A strain gauge sensor 9 is set in the middle of the bottom of the mold base plate 201, and one of the mounting plates 8 is fixedly connected to the bottom of the mold base plate 201. A controller 10 is provided on the top, and the top of each supporting base plate 7 is fixedly connected to a support assembly 4, which includes two first movable connecting members 403, and a group of movable rods 404 are rotatably connected to the opposite sides of the two first movable connecting members 403. Two second movable connecting members 405 are fixedly connected between the two groups of movable rods 404. A hydraulic cylinder 401 is provided between the two second movable connecting members 405. The bottom of the first movable connecting member 403 below is fixedly connected to the base 402. Each support assembly 4 is provided below the corresponding reinforcement pad 207. The mold A floor deck assembly 1 is provided on the top of the base plate 201. The floor deck assembly 1 includes multiple trusses, and a fiber cement flat plate 107 is cast between the multiple trusses. The truss includes two lower chord steel bars 102. The tops of the two lower chord steel bars 102 are welded with multiple web steel bars 103. The tops of the multiple web steel bars 103 are welded with upper chord steel bars 101. Multiple metal connectors 104 are fixedly connected between the outer surfaces of the two lower chord steel bars 102. Support vertical bars 105 are welded at both ends of the upper chord steel bars 101, and support transverse bars 106 are welded at one end of the two support vertical bars 105.

[0037] In this embodiment, when in use, the support assembly 4 is in an upwardly raised state, supporting the bottom of the mold base plate 201. The heights of the support assemblies 4 at the four corners are the same, so that the state of the mold base plate 201 remains balanced. After the UHPC is formed, the four hydraulic cylinders 401 are started simultaneously by the controller 10, thereby driving the four hydraulic cylinders 401 to extend simultaneously. During the extension, the distance between the two second movable connecting members 405 will increase, and the two sets of movable rods 404 located above and below will rotate simultaneously. Then, the distance between the two first movable connecting members 403 will shorten, that is, the first movable connecting member 403 located above will drop downward, thereby releasing the support for the reinforcement pad 207. At this time, by sliding the support rod 205 into the inner part of the locking groove 61, the multiple stabilizing piers 6 support the formed floor deck, so as to facilitate the demoulding of the mold base plate 201. In addition, the installation between the four side panels 203 and the mold base plate 201 The method is to fit the four side panels 203 into the grooves of the plurality of positioning blocks 202, with the long side panels 203 being mounted on the longer side of the mold base plate 201 and the short side panels 203 being mounted on the shorter side of the mold base plate 201. The position of each supporting oblique block 204 corresponds to the position above the positioning block 202, which can prevent the side panels 203 from tilting outwards due to excessive pressure during UHPC pouring. By pressing the two mounting blocks 209 together and fixing them together with fastening bolts, the reinforcing triangular plates 208 can effectively support the side panels 203 and the mounting blocks 209, thereby strengthening the connection between the two reinforcing triangular plates 208, thereby preventing the side panels 203 from being deformed due to excessive pressure at the contact corners. The bottom center of the mold base plate 201 is monitored by the strain gauge sensor 9. The bottom center of the mold base plate 201 is where concentrated pressure is applied. When deformation of the mold base plate 201 is detected, the poured UHPC needs to be dispersed to the side.

[0038] Example 3: Figures 1-10As shown, a floor deck assembly 1 is provided on the top of the mold base plate 201, and the floor deck assembly 1 includes a plurality of trusses, and a fiber cement flat plate 107 is cast between the plurality of trusses, and the truss includes two lower chord steel bars 102, and a plurality of web steel bars 103 are welded to the tops of the two lower chord steel bars 102, and an upper chord steel bar 101 is welded between the tops of the plurality of web steel bars 103, and a plurality of metal connectors 104 are fixedly connected between the outer surfaces of the two lower chord steel bars 102, and support vertical bars 105 are welded to both ends of the upper chord steel bars 101, and support transverse bars 106 are welded to one end of the two support vertical bars 105, and the outer surface of each stabilizing pier 6 is fixedly connected to a bearing base plate 7, and a mounting plate 8 is fixedly connected between each two bearing base plates 7. A strain gauge sensor 9 is provided at the middle of the bottom of the mold base plate 201, and a controller 10 is provided on the top of one of the mounting plates 8. The bottom of the plate 201 is fixedly connected with a maintenance component 5, which includes an insulation plate 501 and a water pump 506. Two drainage pipes 503 are provided inside the insulation plate 501. A plurality of heat conduction pipes 502 are fixedly connected between the outer surfaces of the two drainage pipes 503, and the drainage pipes 503 and the heat conduction pipes 502 are made of metal copper. A water pumping pipe 507 is fixedly connected between the output end of the water pump 506 and one end of one of the drainage pipes 503. The input end of the water pump 506 is fixedly connected to a delivery pipe 508. A heating coil 509 is provided at one end of the delivery pipe 508. One end of the heating coil 509 is fixedly connected to a connecting pipe 510. One end of the other drainage pipe 503 is fixedly connected to a water inlet pipe 505. A water tank 504 is fixedly connected between one end of the connecting pipe 510 and one end of the water inlet pipe 505. The water tank 504 and the water pump 506 are respectively fixedly mounted on the tops of the two mounting plates 8.

[0039] In this embodiment, when in use, the upper chord steel bars 101, the web steel bars 103, and the lower chord steel bars 102 are welded into a truss, and the trusses are evenly arranged on the mold bottom plate 201, and then the UHPC is evenly poured, so that the truss and the fiber cement flat plate 107 are fixed into a whole, thereby improving the firmness of the floor deck. Among them, the support vertical bars 105 and the support horizontal bars 106 play a supporting and fixing role, and the metal connector 104 can strengthen the connection between the truss and the fiber cement flat plate 107. By starting the water pump 506 to increase the pressure, the water in the water tank 504 is pumped out, and the water flows through the connecting pipe 510 to the heating coil 509. At this time, the heating coil 509 is energized to increase the temperature of the water flow. Its function is to maintain the UHPC in a temperature range suitable for hydration, especially to avoid freezing in low temperature environments, and accelerate the early strength development. The heated water will pass through the delivery pipe 508 and then be pumped out from the water pipe 507 under the pressure of the water pump 506. Hot water is transported to the curing network formed by the drainage pipes 503 and the heat conducting pipes 502. Both of these pipes are made of copper. Hot water circulates within these pipes and is evenly transferred to the surface of the mold base 201 through heat conduction between the pipes 503 and 502 and the mold base 201. The heat is then transferred to the UHPC above, thereby reducing the temperature difference between the inside and outside of the UHPC and lowering the risk of temperature stress cracking. Furthermore, hydration of the UHPC releases water. When the mold base 201 is heated, the surface temperature rises, slightly increasing the evaporation rate of the water at the bottom of the UHPC. However, due to the density of the UHPC and its close fit with the mold base 201, the evaporated water vapor creates a localized moist environment between the bottom of the UHPC and the mold base 201, reducing water loss from the bottom. Furthermore, the stable temperature environment slows the overall water loss rate, aiding moisture retention and effectively curing the UHPC.

[0040] The method of use and working principle of this device are as follows: when in use, the upper chord steel bars 101, the web steel bars 103, and the lower chord steel bars 102 are welded into a truss, and the trusses are evenly arranged on the mold bottom plate 201, and then UHPC is evenly poured, so that the truss and the fiber cement flat plate 107 are fixed into a whole, thereby improving the firmness of the floor deck. Among them, the support vertical bars 105 and the support horizontal bars 106 play a supporting and fixing role, and the metal connector 104 can strengthen the connection between the truss and the fiber cement flat plate 107. By starting the water pump 506 to increase the pressure, the water inside the water tank 504 is pumped out, and the water flows through the connecting pipe 510 to the heating coil 509. At this time, the heating coil 509 is energized to enable it to heat the water flow. Its function is to maintain UHPC in a temperature range suitable for hydration, especially in low temperature environments to avoid freezing and accelerate early strength development. The heated water will pass through the delivery pipe 508 and then be transported from the water pump 507 to the maintenance network formed by the drainage pipe 503 and the heat pipe 502 under the pressure of the water pump 506. The drainage pipe 503 and the heat pipe 502 are both water pipes made of metal copper. Hot water circulates inside the drainage pipe 503 and the heat pipe 502. Through heat conduction between the drainage pipe 503 and the heat pipe 502 and the mold bottom plate 201, the heat is evenly transferred to the surface of the mold bottom plate 201 and then transferred to the UHPC above. Moreover, the hydration of UHPC will release water, and after the mold bottom plate 201 is heated, the surface temperature The rise slightly increases the evaporation rate of water at the bottom of the UHPC. However, due to the density of the UHPC itself and its fit with the mold base 201, the evaporated water vapor will form a local moist environment between the bottom of the UHPC and the mold base 201, reducing water loss at the bottom. At the same time, a stable temperature environment can slow down the overall water loss rate, assist in moisturizing, and have an effective maintenance effect on the UHPC. When in use, the support assembly 4 is in an upwardly raised state, supporting the bottom of the mold base 201. The support assemblies 4 at the four corners are of the same height, so that the state of the mold base 201 remains balanced. After the UHPC is formed, the four hydraulic cylinders 401 are started simultaneously by the controller 10, thereby driving the four hydraulic cylinders 401 to extend simultaneously. During the extension, the two The distance between the two second movable connecting members 405 will increase, and the two sets of movable rods 404 located above and below will rotate at the same time. Then, the distance between the two first movable connecting members 403 will shorten, that is, the first movable connecting member 403 located above will drop downward, thereby releasing the support for the reinforcement pad 207. At this time, by sliding the support rod 205 into the inner part of the positioning slot 61, the support of the formed floor deck is achieved by the multiple stabilizing piers 6. In addition, the installation method between the four side panels 203 and the mold base 201 is to engage the four side panels 203 in the grooves of the multiple positioning blocks 202, and the long side panels 203 are installed on the longer side of the mold base 201, and the short side panels 203 are installed on the shorter side of the mold base 201.The position of each supporting oblique block 204 corresponds to the upper part of the positioning block 202, which can prevent the side plate 203 from tilting outwards due to excessive pressure during UHPC pouring. By pressing the two mounting blocks 209 together and fixing them together with fastening bolts, the reinforcing triangular plate 208 can effectively support the side plate 203 and the mounting blocks 209, thereby strengthening the connection between the two reinforcing triangular plates 208. The bottom center of the mold bottom plate 201 is monitored by the strain gauge sensor 9. The bottom center of the mold bottom plate 201 is the place where concentrated pressure is applied. When the mold bottom plate is monitored, the bottom center of the mold bottom plate 201 is the place where concentrated pressure is applied. When deformation occurs on 201, the poured UHPC needs to be dispersed to the side. When in use, the UHPC is evenly poured inside the mold formed by the side panels 203 and the mold bottom plate 201, so that the truss and the UHPC are solidified into one. By supporting the side of the floor deck, the side panels 203 and the UHPC are adhered to each other, and then the controller 10 extends all the hydraulic cylinders 401 at the same time, so that the multiple support components 4 are lowered at the same time, so that the tops are separated from the reinforcement pads 207. Then, the floor deck and the mold bottom plate 201 are in a suspended state. At this time, the controller 1 0 controls and activates the two hydraulic rods 312, causing them to retract simultaneously. The retracted hydraulic rods 312 drive the two pull rods 311 to retract toward the center, thereby pulling the two connecting shafts 310, and then driving the two positioning buttons 309 to rotate. When the positioning buttons 309 rotate, they drive the permanent magnet 305 to rotate, and the magnetic poles of the permanent magnet 305 change. When the permanent magnet 305 rotates to the horizontal, the magnetic lines of force can pass through the electrical soft iron 302, the cast iron block 301 and other materials with good magnetic conductivity, forming a relatively complete closed space between the cast iron plate 206 and the cast iron block 301. The magnetic lines of force effectively pass through the cast iron plate 206, generating a strong attraction to the plate 206. The four corners simultaneously draw downward, allowing demolding under the strong magnetic attraction. However, when the permanent magnet 305 is vertical, due to the very poor magnetic conductivity of the brass 306, the magnetic lines of force of the permanent magnet 305 are not conducive to forming an efficient closed magnetic circuit between the cast iron block 301, the electrical soft iron 302, and the cast iron plate 206. At this time, the magnetic lines of force rarely pass through the cast iron plate 206, resulting in a weak attraction to the cast iron plate 206, and thus the cast iron plate 206 cannot be adsorbed.

[0041] The wiring diagram of the hydraulic rod 312, hydraulic cylinder 406, water pump 506, heating coil 509, strain gauge sensor 9 and controller 10 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring layout of the hydraulic rod 312, hydraulic cylinder 406, water pump 506, heating coil 509, strain gauge sensor 9 and controller 10 will not be explained in detail.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special mold for producing UHPC non-demolition floor decking, comprising a mold assembly (2) and a plurality of stabilizing piers (6), wherein the bottom of the mold assembly (2) is provided with a demoulding assembly (3) near each of the four corners, and is characterized in that: The mold assembly (2) comprises a mold base plate (201), each side of the mold base plate (201) is fixedly connected to a group of positioning blocks (202), the tops of each group of positioning blocks (202) are clamped and installed with side plates (203), the bottom of the mold base plate (201) near the four corners is fixedly connected to a cast iron plate (206), the top surfaces of the plurality of side plates (203) and the mold base plate (201) are coated with polytetrafluoroethylene coating and polyurethane coating, and the polytetrafluoroethylene is used to reduce the demoulding resistance of concrete, and the polyurethane is used to withstand the friction during concrete pouring; The demoulding assembly (3) comprises two cast iron blocks (301), the two cast iron blocks (301) are symmetrically arranged, the tops of the two cast iron blocks (301) are each provided with an adsorption surface (308), the inner walls of the two cast iron blocks (301) are each fixedly connected with electrical soft iron (302), brass (306) is fixedly connected between the two cast iron blocks (301), and a permanent magnet (305) is provided between the two electrical soft iron (302).

2. The special mold for producing UHPC non-disassembly floor deck according to claim 1 is characterized by: A fixing plate (303) is fixedly connected between the two opposite sides of the two cast iron blocks (301), and a rotation hole (304) is provided on the outer surface of each of the two fixing plates (303). A protective block (307) and a positioning button (309) are fixedly connected at the center of both sides of the permanent magnet (305), and the outer surfaces of the protective block (307) and the positioning button (309) are rotatably connected to the inner walls of the two rotation holes (304).

3. The special mold for producing UHPC non-disassembly floor decking according to claim 2 is characterized in that: The outer surface of the positioning button (309) is fixedly connected to a connecting shaft (310), and the outer surface of the connecting shaft (310) is rotatably connected to a pull rod (311). A hydraulic rod (312) is provided between the opposite ends of each two adjacent pull rods (311).

4. The special mold for producing UHPC non-disassembly floor decking according to claim 3 is characterized by: The outer surface of each side panel (203) is fixedly connected with a plurality of supporting oblique blocks (204), the position of each supporting oblique block (204) corresponds to the position of each positioning block (202), both ends of each side panel (203) are fixedly connected with mounting blocks (209), a reinforcing triangular plate (208) is fixedly connected between each mounting block (209) and the corresponding side panel (203), and each two adjacent mounting blocks (209) are fixedly installed by fastening bolts.

5. The special mold for producing UHPC non-disassembly floor decking according to claim 4 is characterized in that: The outer surfaces of the two side plates (203) are fixedly connected to a plurality of support rods (205), the top of each stabilizing pier (6) is provided with a latching slot (61), the outer surface of each support rod (205) is slidably connected to the inner wall of each latching slot (61), the bottom of the mold base plate (201) is fixedly connected to a cast iron plate (206) near the four corners, each cast iron plate (206) corresponds to each group of cast iron blocks (301), and the bottom of the mold base plate (201) is fixedly connected to a reinforcement pad (207) near each cast iron plate (206).

6. The special mold for producing UHPC non-disassembly floor decking according to claim 5 is characterized by: The outer surface of each stabilizing pier (6) is fixedly connected to a bearing base plate (7), and a mounting plate (8) is fixedly connected between each two bearing base plates (7). A strain gauge sensor (9) is provided at the middle of the bottom of the mold base plate (201), and a controller (10) is provided at the top of one of the mounting plates (8).

7. The special mold for producing UHPC non-disassembly floor decking according to claim 6, characterized in that: The top of each bearing base plate (7) is fixedly connected to a support assembly (4), and the support assembly (4) includes two first movable connecting members (403), and the opposite sides of the two first movable connecting members (403) are rotatably connected to a group of movable rods (404), and two second movable connecting members (405) are fixedly connected between the two groups of movable rods (404). A hydraulic cylinder (401) is arranged between the two second movable connecting members (405), and the bottom of the first movable connecting member (403) located below is fixedly connected to a base (402). Each support assembly (4) is arranged below the corresponding reinforcement pad (207).

8. The special mold for producing UHPC non-disassembly floor decking according to claim 7, characterized in that: A floor deck assembly (1) is provided on the top of the mold bottom plate (201), the floor deck assembly (1) includes a plurality of trusses, and a fiber cement flat plate (107) is cast between the plurality of trusses, the trusses include two lower chord steel bars (102), the tops of the two lower chord steel bars (102) are welded with a plurality of web steel bars (103), an upper chord steel bar (101) is welded between the tops of the plurality of web steel bars (103), a plurality of metal connectors (104) are fixedly connected between the outer surfaces of the two lower chord steel bars (102), support vertical bars (105) are welded at both ends of the upper chord steel bars (101), and support transverse bars (106) are welded at one end of the two support vertical bars (105).

9. The special mold for producing UHPC non-disassembly floor decking according to claim 8, characterized in that: The bottom of the mold base plate (201) is fixedly connected to a maintenance component (5), and the maintenance component (5) includes a temperature-isolating plate (501) and a water pump (506). Two drainage pipes (503) are provided inside the temperature-isolating plate (501), and a plurality of heat-conducting pipes (502) are fixedly connected between the outer surfaces of the two drainage pipes (503), and the drainage pipes (503) and the heat-conducting pipes (502) are made of metal copper.

10. The special mold for producing UHPC non-disassembly floor decking according to claim 9, characterized in that: A water pump (507) is fixedly connected between the output end of the water pump (506) and one end of one of the drainage pipes (503); a delivery pipe (508) is fixedly connected to the input end of the water pump (506); a heating coil (509) is provided at one end of the delivery pipe (508); one end of the heating coil (509) is fixedly connected to a connecting pipe (510); one end of the other drainage pipe (503) is fixedly connected to a water inlet pipe (505); one end of the connecting pipe (510) is fixedly connected to one end of the water inlet pipe (505); a water tank (504) is fixedly connected between one end of the connecting pipe (510) and one end of the water inlet pipe (505); the water tank (504) and the water pump (506) are fixedly mounted on the tops of two mounting plates (8), respectively.

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