A cast-in-place floor steel bar and concrete height control construction method

Abstract

The application discloses a cast-in-place floor steel bar and concrete height control construction method, and belongs to the field of building engineering. The cast-in-place floor steel bar and concrete height control construction method comprises a supporting seat, a plurality of accommodating grooves are formed in the supporting seat, a supporting plate for supporting a steel bar is arranged in the supporting seat, the supporting plate is in sliding fit with the inner side wall of the accommodating groove, an adjusting assembly for adjusting the position of the supporting plate is arranged on the supporting seat, and a reinforcing assembly for improving the stability of the steel bar is arranged on the supporting seat. The cast-in-place floor steel bar and concrete height control construction method has the effect of conveniently controlling the thickness of a floor and the spacing of steel bars.

Description

Technical Field

[0001] This application relates to the field of building engineering, and in particular to a construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs. Background Technology

[0002] In building construction, cast-in-place reinforced concrete structural slabs are widely used. Controlling the thickness of the slab has long been a difficult problem for construction workers. Inadequate slab thickness can cause a series of problems such as floor cracks, increased structural weight, and insufficient structural bearing capacity, affecting the quality and efficiency of subsequent construction.

[0003] As buildings become more integrated and have more and more functions, the thickness of the structural slabs in different functional areas of a single floor varies. Previous methods for controlling the thickness of floor slabs are difficult to meet the actual measurement requirements of cast-in-place reinforced concrete structural slabs, which seriously affects the construction efficiency of cast-in-place concrete structural slabs. Summary of the Invention

[0004] To facilitate the control of floor slab thickness and rebar spacing, this application provides a construction method for controlling the height of rebar and concrete in cast-in-place floor slabs.

[0005] This application provides a construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs, which adopts the following technical solution:

[0006] A construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs includes the following steps:

[0007] S1. Floor reinforcement layout and marking: Before construction, according to the floor reinforcement information in the design drawings, the reinforcement is laid out and marked on the formwork to locate the reinforcement in advance and ensure the positional relationship of the reinforcement.

[0008] S2. Based on the reinforcement layout and marking on the template, select the reinforcement type in the design drawings to lay and tie the lower reinforcement, and carry out relevant inspection and acceptance.

[0009] S3. After the lower reinforcement is laid, install the integrated reinforcement support frame. The frame is set according to the specified spacing. The reinforcement support frame is set at the intersection of the longitudinal and transverse reinforcement.

[0010] S4. After the lower reinforcement is laid and the support frame is installed and fixed, the upper reinforcement is laid, and after the laying is completed, the reinforcement is tied and fixed.

[0011] S5. Calculate the elevation of the bottom formwork of the slab based on the floor elevation, slab thickness and formwork thickness. The construction worker measures the flatness of the bottom of each slab according to the elevation and adjusts the height of the top support of the formwork support to make the flatness of the bottom formwork of the slab meet the error requirements.

[0012] S6. Concrete pouring: The thickness of the concrete pouring is controlled according to the height of the steel reinforcement support frame adjusted according to the designed floor slab thickness, so as to improve the quality of concrete thickness control during the concrete pouring process.

[0013] S7. After the floor concrete is poured and before the concrete has initially set, the quality inspector will recheck the elevation and flatness of the bottom formwork of each slab. If there is any error, the formwork will be adjusted again. After the bottom formwork is adjusted, the mason will use an aluminum alloy scraper to level the surface according to the horizontal bar at the top of the device and perform detailed finishing.

[0014] S8. After leveling and finishing the surface, arrange for workers to cover it with a film to prevent the concrete from cracking.

[0015] By adopting the above technical solution, the adjustable flexibility of the rebar support frame can meet the requirements of different slab thicknesses, effectively adapting to the combination of different slab thicknesses and different specifications of rebars in existing projects. Through the adjustable upper elevation control rod and lower protective layer control, the protective layer thickness of main bars of different specifications can be controlled, and the flatness of the floor slab and internal rebars can be controlled more precisely. The rebar support frame can effectively replace the stirrups and elevation control measures, realizing integrated control of multiple functions such as upper and lower rebar protective layer thickness, floor slab thickness, floor slab flatness, and slab elevation, simplifying the control procedure. The materials used in the integrated support frame are all commonly used materials on the construction site, and even waste materials are processed to realize the recycling of construction waste on the construction site. Due to the many procedures and inspections in the floor slab construction process, it is difficult to avoid the trampling and damage of the completed rebars by workers and managers. The device in this technology can improve the overall stability of the floor slab rebars, effectively control the damage of construction loads to the rebars, thereby reducing the reinforcement and rework in the process and greatly improving labor efficiency.

[0016] A preferred embodiment of a rebar support frame includes a support base with a plurality of receiving grooves. A support plate for supporting rebar is disposed within the support base. The support plate slides against the inner sidewall of the receiving groove. An adjustment component for adjusting the position of the support plate is disposed on the support base. A reinforcement component for improving the stability of the rebar is disposed on the support base.

[0017] By adopting the above technical solution, when binding the reinforcing bars, the operator places the support base at each designated position and places the reinforcing bars sequentially into the receiving slots on the support base. As the reinforcing bars enter the receiving slots, they are confined within the support base. At the same time, the reinforcement components improve the stability of the reinforcing bars within the support base, preventing positional displacement. Before the reinforcing bars enter the receiving slots, the operator can adjust the position of the support plate by adjusting the components, thereby adjusting the height of the reinforcing bars to control the thickness of the poured concrete slab. When the number of reinforcing bar layers changes, the number of receiving slots on the support base can be adjusted to control the number of reinforcing bar layers that the support base can support. After the reinforcing bars are placed, they are tied with steel wire. By setting up the support base, support plate, and adjusting the receiving slots on the support base, the swaying of the reinforcing bars can be limited and the breaking of the binding steel wire can be prevented. At the same time, the height of the reinforcing bar layers can be controlled by controlling the height of the support base, and the adjustment components can adjust the position of the support plate, thereby adjusting the position of the reinforcing bars and achieving control of the protective layer thickness of main reinforcing bars of different specifications.

[0018] Preferably, the adjustment assembly includes a first lead screw, a first sliding groove is formed on the inner sidewall of the receiving groove, the receiving groove is connected to the first sliding groove, the support plate passes through the first sliding groove, the first lead screw is rotatably connected to the inner sidewall of the first sliding groove, the first lead screw passes through the support plate, the first lead screw is threadedly engaged with the support plate, and a first driving assembly for driving the first lead screw to rotate is provided on the support base.

[0019] By adopting the above technical solution, the first drive assembly drives the first lead screw to rotate, and the rotation of the first lead screw causes the support plate to move in the first slide groove. The position of the reinforcing bar and the spacing between the upper and lower reinforcing bars can change according to the change of the position of the support plate.

[0020] Preferably, the first drive assembly includes a crown gear and a first spur gear. The crown gear is fixedly sleeved on the first lead screw. A first drive shaft passes through the support base and is rotatably connected to the support base. The first spur gear is fixedly sleeved on the first drive shaft and meshes with the crown gear. A first bevel gear is fixedly sleeved on the first drive shaft. A second drive shaft passes through the support base and is fixedly sleeved on the second drive shaft, meshing with the first bevel gear. The second drive shaft extends out of the support base.

[0021] By adopting the above technical solution, the operator rotates the second drive shaft, which causes the second bevel gear to rotate, which in turn causes the first bevel gear to rotate, which in turn causes the first drive shaft to rotate, which in turn causes the first spur gear to rotate, which in turn causes the crown gear to rotate, which in turn causes the first lead screw to rotate, and the rotation of the first lead screw causes the support plate to move.

[0022] Preferably, the reinforcement component includes a limiting rod capable of abutting against the reinforcing bar. The limiting rod is slidably disposed on the support plate. The support plate has a second sliding groove for sliding cooperation with the limiting rod. A first return spring is fixedly connected to the limiting rod. The end of the first return spring away from the limiting rod is fixedly connected to the inner sidewall of the second sliding groove. The ends of the limiting rod near adjacent limiting rods are provided with inclined surfaces. The limiting rod is made of rubber. The support plate is provided with a second driving component for controlling the movement of the limiting rod.

[0023] By adopting the above technical solution, after the reinforcing bar is placed on the support plate, the second drive assembly drives the limiting rod to move towards the reinforcing bar. The limiting rod moves and abuts against the reinforcing bar. The inclined surface on the limiting rod can help the reinforcing bar not be blocked when it enters the support plate. The reinforcing bar can push the limiting rod to compress the first return spring through the inclined surface on the limiting rod. After reaching the designated position, the first return spring pushes the limiting rod to abut against the reinforcing bar. The rubber material of the limiting rod can increase the friction between the limiting rod and the reinforcing bar. At the same time, it can also play a good stabilizing role when the distance between the reinforcing bar and the limiting rod is small.

[0024] Preferably, the second driving assembly includes a push rod that slides through the support plate and can abut against the limiting rod. The sidewalls of the push rod and the limiting rod that are close to each other are provided with inclined surfaces. A first slider slides through the support plate. The support plate has a third groove for sliding cooperation with the first slider. A second return spring is fixedly connected to the first slider. The end of the second return spring away from the first slider is fixedly connected to the inner sidewall of the third groove. A first rack and a second rack are fixedly connected to the sidewalls of the first slider and the push rod that are close to each other, respectively. A second spur gear is rotatably mounted inside the support plate, and both the first rack and the second rack mesh with the second spur gear.

[0025] By adopting the above technical solution, when the operator places the steel bar on the support plate, the steel bar contacts the first slider and moves it. The movement of the first slider causes the first rack to move, the movement of the first rack causes the second spur gear to rotate, the rotation of the second spur gear causes the second rack to move, the movement of the second rack causes the push rod to move, and the movement of the push rod causes its upper inclined surface to contact the limiting rod and push the limiting rod to move. The limiting rod thus restricts the steel bar to the support plate.

[0026] Preferably, a connecting plate is slidably disposed on the support base, and a clamping seat is disposed on the side wall of the connecting plate near the support plate. Both the side walls of the clamping seat and the support plate that are close to each other are provided with arc surfaces. A first slot for inserting and cooperating with the push rod is provided on the clamping seat. A first locking block is slidably disposed on the inner side wall of the first slot. A locking groove for engaging with the first locking block is provided on the push rod. An inclined surface is provided on the side wall of the first locking block near the push rod. A third return spring is fixedly connected to the first locking block. The end of the third return spring away from the first locking block is fixedly connected to the inner side wall of the first slot.

[0027] By adopting the above technical solution, after the steel bar is placed on the support plate, the operator slides the connecting plate. The movement of the connecting plate causes the clamping seat to move towards the steel bar. When the clamping seat contacts the support plate, the push rod is inserted into the first slot. At the same time, the push rod pushes the first locking block. When the clamping seat stops moving, the first locking block moves under the action of the third return spring and engages with the slot.

[0028] Preferably, a second locking block is provided on the clamping seat, and a plurality of second slots for interlocking with the second locking block are provided on the inner sidewall of the receiving groove. A second slider is slidably provided in the clamping seat, and a fourth sliding groove for sliding cooperation of the second slider is provided in the clamping seat and the connecting plate. The second slider passes into the connecting plate, and the second locking block passes into the fourth sliding groove. The second slider can abut against the second locking block. The sidewalls of the second slider and the second locking block that are close to each other are provided with inclined surfaces. A fourth return spring is fixedly connected to the second slider, and the end of the fourth return spring away from the second slider is fixedly connected to the inner sidewall of the fourth sliding groove.

[0029] By adopting the above technical solution, when the clamping seat moves towards the reinforcing bar, the second slider abuts against the reinforcing bar. The second slider moves simultaneously. When the clamping seat contacts the support plate, the second slider moves and compresses the fourth return spring. Under the action of the inclined plane, the second slider pushes the second locking block to move. The second locking block moves and inserts into the second slot, so that the clamping seat is restricted to the support seat. The clamping seat and the support plate simultaneously complete the locking of the reinforcing bar.

[0030] Preferably, the support base is provided with a plug rod for connecting adjacent support bases, and the support base is provided with a connecting groove for connecting the plug rods on adjacent support bases.

[0031] By adopting the above technical solution, when multiple layers of steel reinforcement are required and the receiving groove on the support base cannot meet the requirements, the operator can connect multiple support bases together using plug-in rods and connecting grooves.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. By adjusting the upper elevation control rod and the lower protective layer control, the protective layer thickness of main reinforcement bars of different specifications can be controlled, and the flatness of the floor slab and internal reinforcement bars can be controlled more precisely. The reinforcement support frame can effectively replace the stirrups and elevation control measures and accessories, and realize the integrated control of multiple functions such as upper and lower reinforcement protective layer thickness, floor slab thickness, floor slab flatness, and slab elevation, simplifying the control procedure;

[0034] 2. By setting up support bases, support plates, and adjusting the receiving grooves on the support bases, the swaying of the reinforcing bars can be limited and the breakage of the binding wires can be prevented. At the same time, the height of the reinforcing bar layer can be controlled by controlling the height of the support bases, and the position of the support plate can be adjusted by adjusting the components, thereby adjusting the position of the reinforcing bars and realizing the control of the protective layer thickness of main reinforcing bars of different specifications.

[0035] 3. By setting plug-in rods and connecting slots, when multiple layers of steel reinforcement are required and the receiving slots on the support base cannot meet the requirements, operators can connect multiple support bases together using plug-in rods and connecting slots. Attached Figure Description

[0036] Figure 1 This is a structural schematic diagram of a steel bar support frame according to an embodiment of this application.

[0037] Figure 2 This is a structural schematic diagram of the reinforcement component according to an embodiment of this application.

[0038] Figure 3 This is a schematic diagram of the clamping seat according to an embodiment of this application.

[0039] Figure 4 This is a schematic diagram of the structure of the first lead screw according to an embodiment of this application.

[0040] Figure 5 yes Figure 4 A schematic diagram of the structure at point A in the middle.

[0041] Figure 6 This is a schematic diagram of the structure of the first drive shaft according to an embodiment of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Support base; 11. Receiving groove; 12. Support plate; 13. First lead screw; 14. Crown gear; 15. First spur gear; 16. First drive shaft; 161. First bevel gear; 162. Second bevel gear; 163. Third bevel gear; 17. Second drive shaft; 18. Insert rod; 181. Connecting groove; 2. Reinforcing assembly; 21. Limiting rod; 22. First return spring; 23. Push rod; 24. First slider; 241. Second return spring; 25. First rack; 26. Second rack; 27. Second spur gear; 3. Connecting plate; 31. Clamping base; 311. First slot; 32. First locking block; 321. Locking groove; 33. Third return spring; 34. Second locking block; 341. Second slot; 35. Second slider; 351. Fourth return spring. Detailed Implementation

[0044] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0045] This application discloses a construction method for controlling the height of reinforcing steel bars and concrete in cast-in-place floor slabs, as well as a reinforcing steel support frame.

[0046] A construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs includes the following steps:

[0047] S1. Floor reinforcement layout and marking: Before construction, according to the floor reinforcement information in the design drawings, the reinforcement is laid out and marked on the formwork to locate the reinforcement in advance and ensure the positional relationship of the reinforcement.

[0048] S2. Based on the reinforcement layout and marking on the template, select the reinforcement type in the design drawings to lay and tie the lower reinforcement, and carry out relevant inspection and acceptance.

[0049] S3. After the lower reinforcement is laid, install the integrated reinforcement support frame. The frame is set according to the specified spacing. The reinforcement support frame is set at the intersection of the longitudinal and transverse reinforcement.

[0050] S4. After the lower reinforcement is laid and the support frame is installed and fixed, the upper reinforcement is laid, and after the laying is completed, the reinforcement is tied and fixed.

[0051] S5. Calculate the elevation of the bottom formwork of the slab based on the floor elevation, slab thickness and formwork thickness. The construction worker measures the flatness of the bottom of each slab according to the elevation and adjusts the height of the top support of the formwork support to make the flatness of the bottom formwork of the slab meet the error requirements.

[0052] S6. Concrete pouring: The thickness of the concrete pouring is controlled according to the height of the steel reinforcement support frame adjusted according to the designed floor slab thickness, so as to improve the quality of concrete thickness control during the concrete pouring process.

[0053] S7. After the floor concrete is poured and before the concrete has initially set, the quality inspector will recheck the elevation and flatness of the bottom formwork of each slab. If there is any error, the formwork will be adjusted again. After the bottom formwork is adjusted, the mason will use an aluminum alloy scraper to level the surface according to the horizontal bar at the top of the device and perform detailed finishing.

[0054] S8. After leveling and finishing the surface, arrange for workers to cover it with a film to prevent the concrete from cracking.

[0055] A steel reinforcement support frame, as shown in the reference Figure 1 , including support base 1.

[0056] Reference Figure 1 The support base 1 is vertically arranged. Four receiving slots 11 are formed at the top of the support base 1 along its height direction, spaced apart around the perimeter of the support base 1. Several receiving slots 11 are also formed at the bottom of the support base 1. The receiving slots 11 at the top and bottom of the support base 1 are symmetrically arranged along their axis. Several insertion rods 18 are provided on the top surface of the support base 1, spaced apart around the perimeter of the support base 1. Several connecting slots 181 are formed on the bottom surface of the support base 1, allowing the insertion rods 18 to be inserted into and engaged with the connecting slots 181 on adjacent support bases 1. Each insertion rod 18 corresponds one-to-one with a connecting slot 181.

[0057] Reference Figure 1 When binding the reinforcing bars, the operator places the support base 1 in each designated position and places the reinforcing bars into the receiving groove 11 on the support base 1 in sequence. As the reinforcing bars enter the receiving groove 11, the reinforcing bars are confined within the support base 1. When multiple layers of reinforcing bars need to be added and the receiving groove 11 on the support base 1 cannot meet the requirements, the operator can connect multiple support bases 1 together through the plug rod 18 and the connecting groove 181.

[0058] Reference Figure 1 as well as Figure 2 The support base 1 is provided with a plurality of support plates 12, and the plurality of support plates 12 correspond one-to-one with a plurality of receiving grooves 11. The support plates 12 are provided with arc surfaces, and the arc surfaces of the support plates 12 located in the top receiving groove 11 of the support base 1 and the support plates 12 located in the bottom receiving groove 11 of the support base 1 are in the same direction.

[0059] Reference Figure 1 as well as Figure 2A reinforcing component 2, including a limiting rod 21, is provided on the support plate 12. The limiting rod 21 slides through the support plate 12, and two limiting rods 21 are provided on a single support plate 12, symmetrically arranged along the axis of the support plate 12. A second sliding groove is formed on the support plate 12 along its width direction, and the limiting rod 21 slides against the inner wall of the second sliding groove. A first return spring 22 is fixedly connected to the bottom surface of the limiting rod 21, and the end of the first return spring 22 away from the limiting rod 21 slides against the inner wall of the second sliding groove. The sidewalls of the limiting rod 21 and another limiting rod 21 located on the same support plate 12 that are close to each other are provided with inclined surfaces. The limiting rod 21 is made of rubber.

[0060] Reference Figure 1 as well as Figure 2 The inclined surface on the limiting rod 21 helps the reinforcing bar to enter the support plate 12 without being blocked. The reinforcing bar can push the limiting rod 21 to compress the first return spring 22 through the inclined surface on the limiting rod 21. After reaching the designated position, the first return spring 22 pushes the limiting rod 21 to abut against the reinforcing bar. The rubber material of the limiting rod 21 can increase the friction between the limiting rod 21 and the reinforcing bar. At the same time, it can also play a good stabilizing role when the distance between the reinforcing bar and the limiting rod 21 is small.

[0061] Reference Figure 1 as well as Figure 2 A second driving assembly, including a push rod 23, is provided on the support plate 12. The push rod 23 passes through the support plate 12 and is slidably connected to the support plate 12. Two push rods 23 are slidably arranged within a single support plate 12, and the two push rods 23 are symmetrically arranged along the axis of the support plate 12. One end of the push rod 23 extends out of the support plate 12, and the end of the push rod 23 outside the support plate 12 abuts against a limiting rod 21. The side wall of the push rod 23 near the limiting rod 21 is provided with an inclined surface, and the push rod 23 corresponds one-to-one with the limiting rod 21.

[0062] Reference Figure 1 as well as Figure 2 After the reinforcing bar is placed on the support plate 12, the second drive assembly drives the limiting rod 21 to move toward the reinforcing bar. The limiting rod 21 moves and abuts against the reinforcing bar. The inclined surface on the limiting rod 21 helps the reinforcing bar to enter the support plate 12 without being blocked. The reinforcing bar can push the limiting rod 21 to compress the first return spring 22 through the inclined surface on the limiting rod 21. After reaching the designated position, the first return spring 22 pushes the limiting rod 21 to abut against the reinforcing bar. The rubber material of the limiting rod 21 can increase the friction between the limiting rod 21 and the reinforcing bar. At the same time, when the distance between the reinforcing bar and the limiting rod 21 is small, it can also play a good stabilizing role.

[0063] Reference Figure 1 as well as Figure 2A first slider 24 is vertically inserted into the support plate 12. A third groove is formed along the height of the support plate 12, and the support plate 12 slides against the inner wall of the third groove. The end of the push rod 23 away from the limiting rod 21 passes into the third groove. A first rack 25 is fixedly connected to the side wall of the first slider 24 near the adjacent push rod 23. Two second spur gears 27 are rotatably installed inside the support plate 12, and the two second spur gears 27 mesh with the two first racks 25 respectively. A second rack 26 is fixedly connected to the side wall of the push rod 23 near the adjacent push rod 23, and the second rack 26 also meshes with the second spur gears 27. The second rack 26 and the second spur gears 27 correspond one-to-one. A second return spring 241 is fixedly connected to the first slider 24, and the end of the second return spring 241 away from the first slider 24 is fixedly connected to the inner wall of the third groove.

[0064] Reference Figure 1 as well as Figure 2 When the operator places the steel bar on the support plate 12, the steel bar contacts the first slider 24 and moves it. The movement of the first slider 24 causes the first rack 25 to move. The movement of the first rack 25 causes the second spur gear 27 to rotate. The rotation of the second spur gear 27 causes the second rack 26 to move. The movement of the second rack 26 causes the push rod 23 to move. The movement of the push rod 23 causes its upper inclined surface to contact the limiting rod 21 and push the limiting rod 21 to move. The limiting rod 21 thus restricts the steel bar to the support plate 12.

[0065] Reference Figure 1 as well as Figure 3 The support base 1 is provided with two connecting plates 3, which are spaced apart along the height direction of the support base 1 and are slidably connected to the support base 1. The connecting plates 3 are horizontally arranged, and a number of clamping seats 31 are fixedly connected to the bottom surface of the connecting plates 3. The number of clamping seats 31 are spaced apart around the axis of the connecting plates 3, and the clamping seats 31 correspond one-to-one with the support plates 12.

[0066] Reference Figure 1 as well as Figure 3 The clamping seat 31 has an arc surface on the side wall near the support plate 12. A first slot 311 is provided on the end of the clamping seat 31 near the support plate 12. The limiting rod 21 on the support plate 12 corresponding to the clamping seat 31 is inserted into the first slot 311. The limiting rod 21 and the first slot 311 correspond one-to-one.

[0067] Reference Figure 3A first locking block 32 is slidably disposed within the clamping base 31, and the first locking block 32 is slidably connected to the inner sidewall of the first slot 311. A third return spring 33 is fixedly connected to the first locking block 32, and the end of the third return spring 33 away from the first locking block 32 is fixedly connected to the inner sidewall of the first slot 311. The sidewall of the first locking block 32 away from the third return spring 33 is provided with an inclined surface. A slot 321 is provided on the push rod 23, and the first locking block 32 can engage with the slot 321 on the push rod 23.

[0068] Reference Figure 3 as well as Figure 4 Two second locking blocks 34 are provided on a single clamping base 31, and the two second locking blocks 34 are symmetrically arranged along the axis of the clamping base 31. A plurality of second slots 341 are provided on the inner side wall of the receiving groove 11, and the plurality of second slots 341 are spaced apart along the height direction of the support base 1, and the second locking blocks 34 are inserted into the second slots 341.

[0069] Reference Figure 3 A second slider 35 is slidably inserted into the clamping base 31. A fourth groove is formed along the height of the clamping base 31, and the second slider 35 slides in cooperation with the inner wall of the fourth groove. A fourth return spring 351 is fixedly connected to the top surface of the second slider 35, and the end of the fourth return spring 351 away from the second slider 35 is fixedly connected to the inner wall of the fourth groove. The ends of the two second locking blocks 34 that are close to each other are inserted into the fourth groove. The ends of the second locking blocks 34 located in the fourth groove are provided with inclined surfaces. Inclined surfaces are formed on the side walls of the second slider 35 near the two second locking blocks 34, and the second slider 35 abuts against the second locking blocks 34.

[0070] Reference Figure 2 , Figure 3 as well as Figure 4 After the reinforcing bar is placed on the support plate 12, the operator slides the connecting plate 3. The movement of the connecting plate 3 causes the clamping seat 31 to move towards the reinforcing bar. When the clamping seat 31 contacts the support plate 12, the push rod 23 is inserted into the first slot 311. At the same time, the push rod 23 pushes the first locking block 32. When the clamping seat 31 stops moving, the first locking block 32 moves under the action of the third return spring 33 and engages with the slot 321.

[0071] When the clamping seat 31 moves toward the reinforcing bar, the second slider 35 abuts against the reinforcing bar. The second slider 35 moves simultaneously. When the clamping seat 31 contacts the support plate 12, the second slider 35 moves and compresses the fourth return spring 351. Under the action of the inclined plane, the second slider 35 pushes the second locking block 34 to move. The second locking block 34 moves and inserts into the second slot 341, so that the clamping seat 31 is restricted to the support seat 1. The clamping seat 31 and the support plate 12 simultaneously complete the locking of the reinforcing bar.

[0072] Reference Figure 4An adjustment assembly, including a first lead screw 13, is provided on the support base 1. A first sliding groove is formed on the inner sidewall of the receiving groove 11 along the height direction of the support base 1, and the first lead screw 13 is rotatably connected to the inner sidewall of the first sliding groove. A support plate 12 is inserted into the first sliding groove, and the end of the support plate 12 located in the first sliding groove is sleeved on the first lead screw 13, with the support plate 12 and the first lead screw 13 being threadedly engaged.

[0073] Reference Figure 5 A first drive assembly is provided on the support base 1, which includes a crown gear 14 and a first spur gear 15. The crown gear 14 is fixedly sleeved on the ends of two lead screws that are close to each other, and the crown gear 14 corresponds one-to-one with the first lead screw 13. Four first drive shafts 16 are horizontally inserted inside the support base 1, and the four first drive shafts 16 are spaced apart in the circumferential direction around the axis of the support base 1. The first drive shafts 16 are rotatably connected to the support base 1. The first spur gear 15 is fixedly sleeved on the end of the first drive shaft 16 that is close to the crown gear 14, and the first spur gear 15 meshes with the crown gear 14, and the first spur gear 15 corresponds one-to-one with the crown gear 14.

[0074] Reference Figure 5 as well as Figure 6 A second drive shaft 17 is horizontally inserted inside the support base 1, and the second drive shaft 17 is rotatably connected to the support base 1. A first bevel gear 161 is fixedly sleeved on the first drive shaft 16 near the second drive shaft 17, and a second bevel gear 162 is sleeved on the second drive shaft 17. The first bevel gear 161 and the second bevel gear 162 mesh with each other. Two third bevel gears 163 are fixedly sleeved on the second first drive shaft 16 arranged circumferentially around the axis of the support base 1. The third bevel gears 163 on the second first drive shaft 16 mesh with the first bevel gear 161 on the first first drive shaft 16. Two third bevel gears 163 are also fixedly sleeved on the third first drive shaft 16. The third bevel gears 163 on the third first drive shaft 16 mesh with the third bevel gear 163 on the second first drive shaft 16. A third bevel gear 163 is fixedly sleeved on the fourth first drive shaft 16. The third bevel gear 163 fixedly sleeved on the fourth first drive shaft 16 meshes with another third bevel gear 163 on the third first drive shaft 16.

[0075] Reference Figure 4 , Figure 5 as well as Figure 6The operator rotates the second drive shaft 17, which causes the second bevel gear 162 to rotate. The rotation of the second bevel gear 162 causes the first bevel gear 161 to rotate. The rotation of the first bevel gear 161 causes the first drive shaft 16 to rotate. The rotation of the first drive shaft 16 causes the first spur gear 15 to rotate. The rotation of the first spur gear 15 causes the crown gear 14 to rotate. The rotation of the crown gear 14 causes the first lead screw 13 to rotate. The rotation of the first bevel gear 161 simultaneously causes the third bevel gear 163 to rotate. The rotation of the third bevel gear 163 causes the first drive shaft 16 adjacent to the first bevel gear 161 to rotate simultaneously. After the first drive shaft 16 rotates, the third bevel gear 163 causes the third bevel gear 163 on the adjacent first drive shaft 16 to rotate. Multiple first drive shafts 16 rotate simultaneously, and multiple first lead screws 13 rotate, causing multiple support plates 12 to move simultaneously.

[0076] The implementation principle of the construction method for controlling the height of reinforcing bars and concrete in cast-in-place floor slabs according to this application embodiment is as follows: The adjustable flexibility of the reinforcing bar support frame meets the requirements of different slab thicknesses, effectively adapting to the combination of different slab thicknesses and various specifications of reinforcing bars in existing projects. Through adjustable upper elevation control rods and lower protective layer control, the protective layer thickness of main reinforcing bars of different specifications can be controlled, allowing for more precise control of the flatness of the floor slab and internal reinforcing bars. The reinforcing bar support frame can effectively replace trestles and elevation control measures, achieving integrated control of multiple functions such as upper and lower reinforcing bar protective layer thickness, floor slab thickness, floor slab flatness, and slab surface elevation, simplifying the control procedure. The materials used in the integrated support frame are all commonly used materials on the construction site, and even waste materials are processed to achieve waste recycling and utilization on the construction site. Due to the numerous procedures and inspections during floor slab construction, it is difficult to avoid workers and managers trampling and damaging the already tied reinforcing bars. The device in this technology can significantly improve the overall stability of the floor slab reinforcing bars, effectively control the damage to the reinforcing bars caused by construction loads, thereby reducing reinforcement and rework during the process and greatly improving labor efficiency.

[0077] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs, characterized in that: Includes the following steps: S1. Floor reinforcement layout and marking: Before construction, according to the floor reinforcement information in the design drawings, the reinforcement is laid out and marked on the formwork to locate the reinforcement in advance and ensure the positional relationship of the reinforcement. S2. Based on the reinforcement layout and marking on the template, select the reinforcement type in the design drawings to lay and tie the lower reinforcement, and carry out relevant inspection and acceptance. S3. After the lower reinforcement is laid, install the integrated reinforcement support frame. The frame is set according to the specified spacing. The reinforcement support frame is set at the intersection of the longitudinal and transverse reinforcement. S4. After the lower reinforcement is laid and the support frame is installed and fixed, the upper reinforcement is laid, and after the laying is completed, the reinforcement is tied and fixed. S5. Calculate the elevation of the bottom formwork of the slab based on the floor elevation, slab thickness and formwork thickness. The construction worker measures the flatness of the bottom of each slab according to the elevation and adjusts the height of the top support of the formwork support to make the flatness of the bottom formwork of the slab meet the error requirements. S6. Concrete pouring: The thickness of the concrete pouring is controlled according to the height of the steel reinforcement support frame adjusted according to the designed floor slab thickness, so as to improve the quality of concrete thickness control during the concrete pouring process. S7. After the floor concrete is poured and before the concrete has initially set, the quality inspector will recheck the elevation and flatness of the bottom formwork of each slab. If there is any error, the formwork will be adjusted again. After the bottom formwork is adjusted, the mason will use an aluminum alloy scraper to level the surface according to the horizontal bar at the top of the device and perform detailed finishing. S8. After leveling and finishing the surface, arrange for workers to cover it with a film to prevent the concrete from cracking. The steel bar support frame includes a support base (1), the support base (1) is provided with a plurality of receiving grooves (11), the support base (1) is provided with a support plate (12) for supporting steel bars, the support plate (12) slides and cooperates with the inner side wall of the receiving groove (11), the support base (1) is provided with an adjustment component for adjusting the position of the support plate (12), and the support plate (12) is provided with a reinforcement component (2) for improving the stability of the steel bars; The adjustment assembly includes a first lead screw (13), a first sliding groove is provided on the inner side wall of the receiving groove (11), the receiving groove (11) is connected to the first sliding groove, the support plate (12) is inserted into the first sliding groove, the first lead screw (13) is rotatably connected to the inner side wall of the first sliding groove, the first lead screw (13) passes through the support plate (12), the first lead screw (13) is threadedly engaged with the support plate (12), and a first driving assembly for driving the first lead screw (13) to rotate is provided on the support base (1); The reinforcement component (2) includes a limiting rod (21) capable of abutting against the reinforcing bar. The limiting rod (21) is slidably disposed on the support plate (12). The support plate (12) is provided with a second sliding groove for sliding cooperation with the limiting rod (21). A first return spring (22) is fixedly connected to the limiting rod (21). The end of the first return spring (22) away from the limiting rod (21) is fixedly connected to the inner sidewall of the second sliding groove. The ends of the limiting rod (21) near adjacent limiting rods (21) are provided with inclined surfaces. The support plate (12) is provided with a second driving component for controlling the movement of the limiting rod (21). The second driving assembly includes a push rod (23) that slides through the support plate (12). The push rod (23) can abut against the limiting rod (21). The sidewalls of the push rod (23) and the limiting rod (21) that are close to each other are provided with inclined surfaces. A first slider (24) slides through the support plate (12). The support plate (12) has a third groove for sliding cooperation with the first slider (24). A second return spring (241) is fixedly connected to the first slider (24). The end of the second return spring (241) away from the first slider (24) is fixedly connected to the inner side wall of the third slide groove. The first slider (24) and the push rod (23) are respectively fixedly connected to the side walls close to each other with a first rack (25) and a second rack (26). A second spur gear (27) is rotatably installed in the support plate (12). The first rack (25) and the second rack (26) are both meshed with the second spur gear (27).

2. The construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs according to claim 1, characterized in that: The first drive assembly includes a crown gear (14) and a first spur gear (15). The crown gear (14) is fixedly sleeved on the first lead screw (13). A first drive shaft (16) is inserted into the support base (1). The first drive shaft (16) is rotatably connected to the support base (1). The first spur gear (15) is fixedly sleeved on the first drive shaft (16). The first spur gear (15) meshes with the crown gear (14). A first bevel gear (161) is fixedly sleeved on the first drive shaft (16). A second drive shaft (17) is inserted into the support base (1). A second bevel gear (162) meshes with the first bevel gear (161) and is fixedly sleeved on the second drive shaft (17). The second drive shaft (17) extends out of the support base (1).

3. The construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs according to claim 1, characterized in that: A connecting plate (3) is slidably disposed on the support base (1). A clamping seat (31) is disposed on the side wall of the connecting plate (3) near the support plate (12). The side walls of the clamping seat (31) and the support plate (12) that are close to each other are provided with arc surfaces. A first slot (311) for inserting and cooperating with the push rod (23) is provided on the clamping seat (311). A first locking block (32) is slidably disposed on the inner side wall of the first slot (311). A slot (321) for engaging with the first locking block (32) is provided on the push rod (23). An inclined surface is provided on the side wall of the first locking block (32) near the push rod (23). A third return spring (33) is fixedly connected to the first locking block (32). The end of the third return spring (33) away from the first locking block (32) is fixedly connected to the inner side wall of the first slot (311).

4. The construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs according to claim 3, characterized in that: The clamping seat (31) is provided with a second locking block (34). The inner sidewall of the receiving groove (11) is provided with a plurality of second slots (341) for insertion and cooperation with the second locking block (34). The clamping seat (31) is provided with a second slider (35). The clamping seat (31) and the connecting plate (3) are provided with a fourth sliding groove for sliding cooperation of the second slider (35). The second slider (35) is inserted into the connecting plate (3). The second locking block (34) is inserted into the fourth sliding groove. The second slider (35) can abut against the second locking block (34). The sidewalls of the second slider (35) and the second locking block (34) that are close to each other are provided with inclined surfaces. A fourth return spring (351) is fixedly connected to the second slider (35). The end of the fourth return spring (351) away from the second slider (35) is fixedly connected to the inner sidewall of the fourth sliding groove.

5. The construction method for controlling the height of reinforcing steel and concrete in cast-in-place floor slabs according to claim 1, characterized in that: The support base (1) is provided with a plug rod (18) for connecting adjacent support bases (1), and the support base (1) is provided with a connecting groove (181) for connecting the plug rod (18) on adjacent support bases (1).

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