Construction system for one-time forming construction of double-layer steel bar terrace and matched construction method

Abstract

The invention discloses a construction system for one-time forming construction of a double-layer steel bar terrace and a matched construction method. The construction system comprises a leveling machine; the multiple unit platforms are detachably spliced to form the work platform, each unit platform comprises a platform plate allowing the leveling machine to advance and a plurality of supporting legs fixed to the bottom of the platform plate, and the platform plates of the adjacent unit platforms are detachably spliced with each other. The supporting legs penetrate through the upper-layer reinforcing mesh and the lower-layer reinforcing mesh at the same time from the upper portion and are arranged on the floor cushion layer in a supported mode, and the length of the supporting legs is larger than the distance between the floor cushion layer and the upper-layer reinforcing mesh, so that it is guaranteed that the platform plate is located above the upper-layer reinforcing mesh. According to the construction system for one-time forming construction of the double-layer steel bar terrace and the matched construction method, the operation platform is arranged, so that the leveling machine can freely move and operate above the upper-layer steel bar net under the condition that lower-layer concrete is not poured, the steel bar net cannot be damaged, and the construction efficiency is improved. And one-time pouring of the double-layer steel bar terrace is achieved.

Description

TECHNICAL FIELD

[0002] The present application relates to the field of building construction, in particular to a construction system and a matching construction method for one-time forming construction of a double-layer reinforced floor. BACKGROUND

[0003] In industrial buildings, such as large workshops, warehouses, logistics centers and the like, the floor needs to bear huge static load and dynamic load (such as heavy equipment, shelves, transport vehicles, etc.). Therefore, such floors usually adopt double-layer reinforced floors, and double-layer reinforcement meshes are configured during construction to provide sufficient structural strength and prevent concrete cracking.

[0004] The construction process of the traditional double-layer reinforced floor is relatively complex. In order to prevent the upper layer of reinforcement mesh from being damaged by the leveling machine, a two-time pouring method is usually adopted: first, the lower layer of reinforcement mesh is erected on the floor cushion, the lower layer of concrete is poured and covers the lower layer of reinforcement mesh, and after the lower layer of concrete reaches a certain strength, the upper layer of reinforcement mesh is laid on the surface of the lower layer of concrete, and then the second time of concrete pouring is carried out. During the second pouring, since the lower layer of concrete has a certain strength, the leveling machine can be used to drive above the upper layer of reinforcement mesh in the pouring area to perform leveling operation on the upper layer of concrete in the pouring area. This way of constructing the double-layer reinforced floor has a long construction period, high cost, and cold joints are easily formed between the two layers of concrete poured in two times, which affects the quality of the formed floor. SUMMARY

[0005] The construction system and the matching construction method for one-time forming construction of a double-layer reinforced floor of the present application establish a physical isolation layer between the leveling machine and the upper layer of reinforcement mesh by setting a working platform, so that the leveling machine can freely move and work above the upper layer of reinforcement mesh without pouring the lower layer of concrete, and will not damage the reinforcement mesh. Therefore, one-time pouring of the double-layer reinforced floor can be realized.

[0006] A further improvement of the present application comprises: a leveling machine; a plurality of unit platforms, which are placed on the floor cushion along the construction path of the leveling machine and can be detachably spliced to form a working platform, each unit platform comprising a platform board for the leveling machine to travel and a plurality of legs fixed to the bottom of the platform board, the platform boards of adjacent unit platforms being detachably spliced to each other, the plurality of legs simultaneously penetrating the upper layer of reinforcement mesh and the lower layer of reinforcement mesh from above and being supported on the floor cushion, the length of the legs being greater than the distance between the floor cushion and the upper layer of reinforcement mesh to ensure that the platform board is located above the upper layer of reinforcement mesh.

[0007] Further improvement of the present application is that a ramp for guiding the screed to drive into the work platform is further included, the ramp is arranged adjacent to the driving-in end of the work platform, and the top end of the ramp is flush with the top end of the work platform, and the bottom end of the ramp is flush with the floor mat.

[0008] Further improvement of the present application is that a screed head is mounted on the front part of the screed, and the height of the screed head is adjustable.

[0009] Further improvement of the present application is that an adjustable leveling leg is mounted on the bottom of the screed.

[0010] The present application is a construction method of a construction system matched with a one-time forming construction of a double-layer reinforced floor, comprising the following steps: S1, a lower layer of reinforcement net and an upper layer of reinforcement net are arranged on the floor mat; S2, the floor mat comprises a pouring area and a to-be-poured area adjacent to the pouring area; S3, a plurality of unit platforms are arranged in the to-be-poured area of the floor mat along the construction path of the screed, and are spliced to form a work platform, so that the work platform penetrates through the entire to-be-poured area; S4, the screed is controlled to drive into the work platform and drive to a position adjacent to the pouring area; S5, concrete is poured in the pouring area, and the concrete is poured on the upper layer of reinforcement net, and after pouring is completed, the screed is controlled to level the concrete in the pouring area; S6, after the pouring area is leveled, a part of the to-be-poured area adjacent to the pouring area is divided into a new pouring area, and the remaining part is a new to-be-poured area, the screed is controlled to retreat to the new to-be-poured area on the work platform, and the unit platform in the new pouring area is removed; S7, steps S5 and S6 are repeated until the concrete on the entire floor mat is leveled.

[0011] Further improvement of the present application is that the construction system further comprises a ramp, the top end of the ramp is flush with the top end of the work platform, and the bottom end of the ramp is flush with the floor mat; before step S3 is performed, the ramp is provided and is arranged adjacent to the driving-in end of the work platform; when step S3 is performed, the screed drives into the work platform through the ramp.

[0012] A further improvement of the present invention is that: a leveling head is installed at the front of the leveling machine, and the height of the leveling head is adjustable; when the leveling machine is driven to a position adjacent to the pouring area, the leveling head is suspended above the pouring area; before the leveling machine levels the concrete in the pouring area, the height of the leveling head is adjusted so that its height is consistent with the elevation of the concrete surface.

[0013] This invention discloses a construction system and supporting construction method for one-time forming of double-layer reinforced concrete flooring. By setting up a working platform, a physical isolation layer is established between the leveling machine and the upper layer of reinforcing mesh, allowing the leveling machine to move and operate freely above the upper layer of reinforcing mesh without damaging the reinforcing mesh before the lower layer of concrete is poured. Therefore, one-time casting of double-layer reinforced concrete flooring can be achieved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the construction process of the present invention; Figure 2 This is a top view diagram of the construction process of this invention; Figure 3 This is a schematic diagram of the unit platform structure of the present invention; Figure 4 This is a schematic diagram of the ramp structure of the present invention; The components include: 1. Unit platform; 11. Platform slab; 12. Outriggers; 2. Ramp; 3. Ground subbase; 31. Pouring area; 32. Area to be poured; 4. Double-layer reinforcement; 41. Upper reinforcement mesh; 42. Lower reinforcement mesh; 5. Leveling machine; 51. Wheels; 52. Leveling legs; 53. Rotating platform; 54. Driver's seat; 55. Telescopic boom; 56. Airborne laser receiver; 57. Push-pull rod; 58. Leveling head; 6. Laser emitter; 7. Handheld laser receiver; 8. Leveling rod. Detailed Implementation

[0015] like Figures 1-4 As shown, a construction system for one-time forming of double-layer reinforced concrete flooring includes: a leveling machine 5; multiple unit platforms 1, which are placed on the flooring sub-base 3 along the construction path of the leveling machine 5 and can be detachably spliced ​​together to form a working platform. Each unit platform 1 includes a platform plate 11 for the leveling machine 5 to travel on and several support legs 12 fixed to the bottom of the platform plate 11. The platform plates 11 of adjacent unit platforms 1 can be detachably spliced ​​together. The several support legs 12 pass through the upper layer steel mesh 41 and the lower layer steel mesh 42 from above, i.e., double-layer steel 4, and are supported on the flooring sub-base 3. The length of the support legs 12 is greater than the distance between the flooring sub-base 3 and the upper layer steel mesh 41 to ensure that the platform plate 11 is located above the upper layer steel mesh 41.

[0016] In this embodiment, as Figure 3As shown, each unit platform has four legs 12 fixed at its bottom. The spacing between the legs 12 is carefully calculated to ensure that the legs 12 can pass smoothly through the double-layer steel bars 4.

[0017] like Figures 1-4 As shown, it also includes a ramp 2 for guiding the leveling machine 5 into the working platform. The ramp 2 is set adjacent to the entry end of the working platform, and the top of the ramp 2 is flush with the top of the working platform, and the bottom of the ramp 2 is flush with the floor slab 3.

[0018] like Figures 1-2 As shown, a leveling head 58 is installed at the front of the leveling machine 5, and the height of the leveling head 58 is adjustable. When the leveling machine 5 travels to a position adjacent to the pouring area 31, the leveling head 58 is suspended above the pouring area 31. Before the leveling machine 5 levels the concrete in the pouring area 31, the height of the leveling head 5 is adjusted so that its height is consistent with the elevation of the concrete surface.

[0019] Preferably, in this embodiment, the leveling head 58 is height-adjustable via a push-pull rod 57.

[0020] Preferably, in this embodiment, the leveling head 58 integrates a vibrating plate, a spiral conveyor plate, and a scraper, which can simultaneously complete the functions of vibration, material spreading, and leveling.

[0021] like Figures 1-2 As shown, in this embodiment, the leveling machine 5 is a laser leveling machine, and also includes: The traveling mechanism includes: wheels 51 and leveling legs 52 for leveling the machine body. During operation, the leveling legs 52 extend and support the machine body on the steel stool 1, so that the wheels 51 are suspended in the air, ensuring the stability of the machine body. The actuator includes a leveling head 58 controlled by a rotating platform 53, a telescopic arm 55, and a push-pull rod 57. The leveling head 58 integrates a vibrating plate, a spiral conveyor, and a scraper, enabling it to complete multiple processes simultaneously. Control system: includes an onboard laser receiver 56 for receiving signals from the laser emitter 6; The driver's seat 54 is provided for the driver to operate the leveling machine 5; Better, such as Figure 3 , Figure 4 As shown, both the unit platform 1 and the ramp 2 are welded from structural steel. In this embodiment, the support legs 12 of the unit platform 1 are made of angle steel, which can be sourced locally according to the specific construction requirements of the ground, resulting in low production costs.

[0022] Preferably, in another embodiment, the length of the support legs 12 and the spacing between the support legs 12 are adjustable to flexibly adapt to different ground heights and steel mesh with different gaps.

[0023] like Figures 1-4 As shown, a construction system and construction method for one-time forming of double-layer reinforced concrete flooring includes the following steps: S1. Lay a lower layer steel mesh 42 and an upper layer steel mesh 41 on the ground subbase 3; S2, the subfloor 3 includes a pouring area 31 and a pouring area 32 adjacent to the pouring area; S3. Arrange multiple unit platforms 1 along the construction path of the leveling machine 5 in the area 32 to be poured of the floor subbase 3, and splice them together to form a working platform, so that the working platform runs through the entire area 32 to be poured. S4. Control the leveling machine 5 to drive it into the working platform and move it to the position adjacent to the pouring area 31; S5. Pour concrete in the pouring area 31, and the concrete covers the upper steel mesh 41. After pouring, operate the leveling machine 5 to level the concrete in the pouring area 31. S6. After the pouring area 31 is leveled, the part of the area to be poured 32 that is close to the pouring area 31 is divided into a new pouring area 31, and the rest is a new area to be poured 32. The leveling machine 5 is operated to move backward on the working platform to the new area to be poured 32, and the unit platform in the new pouring area 31 is removed. S7. Repeat steps S5 and S6 until the concrete on the entire subfloor 3 is leveled.

[0024] Preferably, the construction system further includes a ramp 2, the top of which is flush with the top of the working platform, and the bottom of which is flush with the floor slab 3; before performing step S3, the ramp 2 is provided and placed adjacent to the entry end of the working platform; when performing step S3, the leveling machine 5 drives into the working platform via the ramp 2.

[0025] Preferably, in this embodiment, after the leveling machine 5 is driven to a position adjacent to the pouring area 31, the following steps are also included: S31. After the leveling machine 5 moves to a position close to the pouring area 31, it lowers its four leveling legs 52. The bottom of the leveling legs 52 is firmly supported on the platform plate 11, so that the wheels 51 of the leveling machine are completely suspended in the air. At this time, the entire weight of the leveling machine 5 is borne by the working platform, and its leveling head 58 is suspended above the upper steel mesh 41, which meets the working conditions. S32. Based on the benchmark points set on site, the surveyors use a level and leveling rod 8 to determine the design elevation of the ground. A laser transmitter 6 is set up, and an operator stands at the benchmark point using a handheld laser receiver 7. By observing the signal of the handheld receiver 7, the height and angle of the laser transmitter 6 are finely adjusted until the rotating laser reference plane emitted by it completely coincides with the design elevation. After the leveling machine 5 is in place, the handheld laser receiver 7 can be used to perform consistency calibration on its airborne laser receiver 56 to ensure that the signal reception is correct. Preferably, in this embodiment, the leveling machine 5 also includes an automatic control system, which specifically includes the following steps when the leveling machine 5 performs leveling work: S41. Start the automatic control system of the floor leveling machine 5, and the onboard laser receiver 56 on its top continuously receives the signal from the laser transmitter 6. S42. The control system compares the received signal with the preset elevation, calculates the height deviation in real time, and automatically issues commands: S43. Maintain the overall level of the fuselage by controlling the micro-movement of the leveling outrigger 52; S44. By controlling the extension and retraction of the push-pull rod 57, the vertical working height of the leveling head 58 can be precisely adjusted; S45. The operator controls the forward, backward and turning of the leveling head by manipulating the rotating platform 53 and the telescopic arm 55.

[0026] The present invention has the following beneficial effects: 1. No construction cold joints, excellent integrity: Traditional two-stage pouring processes inevitably result in a weak bonding surface (construction cold joint) between the two layers of concrete. This invention, with its one-time continuous pouring, fundamentally eliminates the formation of cold joints, creating a complete integral structure and greatly improving the floor's load-bearing capacity, crack resistance, and durability.

[0027] 2. High precision and excellent flatness: The entire process relies on the automated construction of the laser floor leveling machine, which fully utilizes its inherent high-precision control capabilities to ensure the ultra-high flatness of the floor, fully meeting the needs of modern industrial plants and warehouses with stringent flatness requirements.

[0028] 3. Process consolidation and process simplification: The multiple intermittent processes in traditional construction, such as "bottom layer pouring, curing, laying upper layer reinforcement, and surface layer pouring and leveling," are combined into a single "one-time continuous molding" process. The construction process becomes simpler and clearer, reducing overlapping operations and lowering the difficulty of on-site construction organization and management.

[0029] 4. Significantly shortened construction period: Eliminating the curing time of intermediate layers can improve overall construction efficiency by more than 50%, greatly shortening the critical construction period and laying the foundation for the early completion of the overall project schedule.

[0030] 5. Cost Savings: By eliminating all steps in a single pouring process, the required labor force is significantly reduced. The material and labor costs for formwork are eliminated, while the operating costs of concrete pumping and vibrating equipment are also reduced. Although the manufacturing cost of the steel benches is increased, they are reusable devices, resulting in extremely low per-use costs after cost amortization. Overall, this invention can significantly reduce the overall project cost.

[0031] 6. Wide applicability: By simply adjusting the dimensions of the steel bench (height, leg spacing), this process can be flexibly applied to various double-layer reinforced concrete floor projects with different design thicknesses and different rebar spacings, making it highly applicable.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction system for one-time molding of double-layer reinforced concrete flooring, characterized in that, The construction system comprises: a screed machine; a plurality of unit platforms, which are arranged on the floor mat along a construction path of the screed machine and are detachably connected to form a working platform, each of the unit platforms comprises a platform plate for the screed machine to travel on and a plurality of legs fixed to the bottom of the platform plate, the platform plates of adjacent unit platforms are detachably connected to each other, and the plurality of legs simultaneously pass through the upper reinforcement mesh and the lower reinforcement mesh from above and are supported on the floor mat, the length of the legs is greater than the distance between the floor mat and the upper reinforcement mesh to ensure that the platform plate is above the upper reinforcement mesh.

2. The construction system for one-step construction of a double-layer reinforced floor slab according to claim 1, wherein The construction system further comprises a ramp for guiding the screed machine to enter the working platform, the ramp is arranged adjacent to the entry end of the working platform, and the top end of the ramp is flush with the top end of the working platform, and the bottom end of the ramp is flush with the floor mat.

3. The construction system for one-step construction of a double-layer reinforced floor according to claim 1, wherein The front of the screed machine is provided with a leveling head, and the height of the leveling head is adjustable.

4. The construction system for one-step construction of a double-layer reinforced floor according to claim 1, wherein The bottom of the screed machine is provided with an adjustable leveling leg.

5. A construction method matched with the construction system of the one-step forming construction of the double-layer reinforced floor according to any one of claims 1 to 4, characterized in that, The construction system comprises the following steps: S1, arranging a lower reinforcement mesh and an upper reinforcement mesh on the floor mat; S2, the floor mat comprises a pouring area and a to-be-poured area adjacent to the pouring area; S3, arranging a plurality of unit platforms on the to-be-poured area of the floor mat along a construction path of the screed machine and connecting them to form a working platform, so that the working platform extends through the entire to-be-poured area; S4, controlling the screed machine to enter the working platform and travel to a position adjacent to the pouring area; S5, pouring concrete in the pouring area, the concrete is poured on the upper reinforcement mesh, and after the pouring is completed, the screed machine is controlled to level the concrete in the pouring area; S6, after the pouring area is leveled, a part of the to-be-poured area adjacent to the pouring area is divided into a new pouring area, and the remaining part is a new to-be-poured area, the screed machine is controlled to retreat to the new to-be-poured area on the working platform, and the unit platforms in the new pouring area are removed; S7, repeating steps S5 and S6 until the concrete on the entire floor mat is leveled.

6. The construction method of the construction system for the one-time forming construction of the double-layer reinforced floor according to claim 5, characterized in that, The construction system further comprises a ramp, the top end of the ramp is flush with the top end of the working platform, and the bottom end of the ramp is flush with the floor mat; before step S3 is performed, the ramp is provided and arranged adjacent to the entry end of the working platform; when step S3 is performed, the screed machine enters the working platform through the ramp.

7. The construction method of the construction system for the one-time forming construction of the double-layer reinforced floor according to claim 5, characterized in that: The front of the screed machine is provided with a leveling head, and the height of the leveling head is adjustable; when the screed machine travels to a position adjacent to the pouring area, the leveling head is suspended above the pouring area; before the screed machine levels the concrete in the pouring area, the height of the leveling head is adjusted to be consistent with the elevation of the concrete surface.

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