Steel structure truss steel plate laminated slab pouring platform and construction method
Through the collaborative design of modular construction platform supports and monitoring components, the risks of deformation and collapse during the pouring of steel composite slabs were resolved, enabling an efficient and safe pouring process and improving construction efficiency and quality control.
Patent Information
- Application Number
- CN202510962323.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2025-11-11
AI Technical Summary
In steel structure engineering, precast composite slabs are prone to deformation and collapse during casting. Traditional support methods affect construction efficiency and cost, and lack effective quality control measures.
Modular construction platform supports, tie mechanisms, and monitoring components are used to form a stable structure through plug-in connections. Tie bars are set according to the three-point stress principle, and laser emitters, temperature and displacement sensors are used for real-time monitoring and control to ensure the quality of pouring.
It achieves an efficient and safe pouring process, reduces the risk of deformation and collapse, improves construction efficiency and quality control accuracy, and reduces rework rate and cost.
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Figure CN120925657A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of composite floor slab casting construction technology, specifically to a steel structure truss steel plate composite slab casting platform and construction method. Background Technology
[0002] In steel structure engineering, precast composite slabs are widely used because they can save construction time and reduce formwork. Among them, steel truss profiled steel sheet composite slabs and steel truss planar steel sheet composite slabs are the most commonly used. However, when the concrete composite layer of the composite slab is poured, the truss steel plate alone bears the loads such as its own weight, manual initial troweling and pumping impact, which can easily cause large deformations. Especially in large span areas, the traditional method of erecting a scaffold support at the bottom has problems such as small construction space, affecting cross-construction, and inability to erect scaffolds at cantilevered parts. Pouring without support faces the risk of excessive deformation or even collapse.
[0003] When pouring concrete, construction workers stand on the truss steel plate to work, which can easily lead to deformation of the reinforcing bars due to being stepped on, damage to welding and binding joints, resulting in weld detachment and a reduction in the thickness of the protective layer of the lower reinforcing bars, affecting the quality and rigidity of the floor slab. At the same time, the thickness control of pumped pouring relies on experience, which has a large error. Furthermore, there is a lack of means to inspect the welding quality of the reinforcing bars and steel plates before pouring and to monitor the deformation during the pouring process, which can easily lead to rework later and increase decoration costs.
[0004] Traditional scaffolding support methods also have problems with construction efficiency and cost: during concentrated pouring, scaffolding needs to be erected from the bottom to the top or wait for the bottom to harden, which seriously affects the flow of construction and the construction period. The amount of scaffolding used is large, requiring a large number of scaffolders, which is costly and takes up space, interfering with the construction of other floors. Therefore, it is necessary to develop construction platforms that are easy to assemble and disassemble and can be erected on the same floor, as well as quality control and monitoring methods. Summary of the Invention
[0005] Based on this, the purpose of the present invention is to provide a steel structure truss steel plate composite slab casting platform and construction method to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a steel structure truss steel plate composite slab casting platform, comprising:
[0007] The construction platform support is composed of support crossbars, support longitudinal bars, support vertical bars and support diagonal bars that are interlocked together. Two telescopic support crossbars and two support longitudinal bars are interlocked to form a rectangular planar frame. The support vertical bars are inserted at the four corners of the frame and supported on the bottom pads. The support diagonal bars reinforce the four corners of the frame, together forming a stable structure that is 30 cm higher than the floor slab.
[0008] The steel beam has a truss plate fixed inside, and the top of the truss plate is fixed with woven truss bars that are fixedly connected to the connector.
[0009] In the construction platform support, two telescopic support horizontal bars and two support vertical bars are connected end to end by four sets of T-joint connectors. The tops of the four support vertical bars are respectively connected to the four sets of T-joint connectors. Each set of support vertical bars has a support diagonal bar inserted obliquely through the bottom connector on the outside. The tops of the support diagonal bars are respectively connected to the support horizontal bars and support vertical bars through oblique connectors.
[0010] The bottom connector has a bottom pad fixed to the bottom. The construction platform support is installed on the top of a steel beam with four sets of steel columns at the bottom, and concrete positioning blocks that match the bottom pad are fixed at the four corners of the top of the steel beam.
[0011] The work platform component is a platform plate welded from aluminum alloy plate and steel pipe. It is fixed to the center of the construction platform support by pins for construction personnel to operate. The platform plate and the construction platform support are fixed by connecting blocks.
[0012] The tying mechanism includes a tie rod, tie bar, adjusting bolt, and connector. The two ends of the tie rod can slide on the crossbar of the support. The tie bar is slidably connected to the tie rod via a special fastener and can be extended or retracted by adjusting bolt. The lower end is welded to the truss steel bar via connector to provide upward tension to the truss steel bar.
[0013] The two ends of the tie rod are slidably connected to the crossbar of the support through the first sliding cylinder, which can adjust the position of the tie rod on the construction platform support. The top of the tie bar is fixed with a second sliding cylinder that is slidably connected to the tie rod, which is used to adjust the position of the tie bar on the tie rod.
[0014] The monitoring components include a laser emitter mounted on the support column, which can project the pouring height planar mesh, a temperature sensor set on the connector, a displacement sensor fixed on the tie bar, and an industrial camera fixed at the bottom center of the platform plate. Each component transmits data to the mobile phone software via wireless signal to realize the monitoring and control of the pouring process.
[0015] The laser emitter is installed on the support vertical rod at a certain height above the top surface of the floor slab. This height is adjusted according to the preset pouring thickness. The laser emitter projects a pouring height plane grid horizontally into the floor slab plane to assist construction personnel in controlling the concrete pouring thickness. The temperature sensor is an instantaneous temperature sensor, which is attached to the upper surface of the connector at the lower end of the tie bar with a high-temperature resistant adhesive. It transmits temperature data to a mobile phone software via wireless signal. The displacement sensor is installed on the tie bar and also transmits displacement data to the mobile phone software via wireless signal. The industrial camera is set at the center of the bottom of the platform plate and is fixed by bolts or welding. Its lens faces downward to capture images of the truss reinforcement and steel plate below. The welding condition of the truss reinforcement and steel plate before pouring is detected by visual recognition.
[0016] A construction method for casting composite steel plate truss slabs in steel structure includes two methods: local single-layer single-span casting and multi-layer multi-span concentrated casting.
[0017] Partial single-layer single-span casting includes the following steps:
[0018] Step 1: Before pouring the composite slab, determine the number of construction platforms according to the pouring area and transport all components to the vicinity of the pouring area;
[0019] Step 2: Complete the assembly of the required construction platform support in one go. Determine the size of the construction platform support according to the span of the pouring. Erect it along the long side of the truss steel plate. Use concrete positioning blocks to position it on the steel beam. Then, splice the support horizontal bars, support vertical bars, support diagonal bars, and tie rods in sequence. Place the entire construction platform support on the concrete positioning blocks, install various sensors, and erect the platform plate.
[0020] Step 3: According to the principle of tie-in at the three points of stress of the composite plate, after determining the position of the tie rod, install the tie bar, adjusting bolt, and connector. Weld the lower end of the connector to the truss steel bar of the composite plate. Rotate the adjusting bolt to tighten the tie bar and make the truss steel plate produce a certain anti-arch. During the process, fine-tune the tie bar according to the displacement sensor data.
[0021] Step 4: Start pouring. Construction workers stand on the platform to spread the concrete and perform initial smoothing. After pouring is completed and the concrete reaches its strength, the construction platform supports are dismantled and cleaned up. Curing is carried out in a timely manner based on temperature sensor data.
[0022] Multi-layer, multi-span centralized casting includes the following steps:
[0023] Step 1: Before pouring, determine the number of construction platform supports needed for one work group according to the flow rhythm, and transport all components to the vicinity of the pouring area;
[0024] Step 2: Complete the assembly of the construction platform support for two work teams in one go, place them in different work areas, determine the size of the construction platform support according to the span of pouring, erect it along the long side of the truss steel plate, use concrete positioning blocks to position it on the steel beam, and splice the support horizontal bars, support vertical bars, support diagonal bars, and tie rods in sequence. Place the entire construction platform support on the concrete positioning blocks, install various sensors, and erect the platform plate.
[0025] Step 3: According to the principle of tie-in at the three points of stress of the composite plate, after determining the position of the tie rod, install the tie bar, adjusting bolt, and connector. Weld the lower end of the connector to the truss steel bar of the composite plate. Rotate the adjusting bolt to tighten the tie bar and make the truss steel plate produce a certain anti-arch. During the process, fine-tune the tie bar according to the displacement sensor data.
[0026] Step 4: The Nth area begins pouring. Construction workers operate from the platform. After the Nth+th area is poured, the N+th area is poured in succession. After the N+th area is poured and the concrete in the Nth area reaches the required strength, the construction platform of the Nth area is dismantled and moved to the N+th area. The construction platform of the N+th area is then dismantled and moved to the N+th area for reuse until all floors are poured. After cleaning and recycling, each area is cured in a timely manner based on the temperature sensor data after pouring.
[0027] In summary, the present invention has the following main advantages: The present invention uses a modularly connected construction platform support to form a stable structure, erected on the steel beams of the same floor, eliminating the need for scaffolding from the bottom layer. This solves the problems of limited construction space, interference with cross-construction, and inability to erect scaffolding at cantilevered sections, inherent in traditional scaffolding. The tie mechanism is set according to the three-point stress principle, and by adjusting the tension of the tie bars with bolts, the truss steel plates generate a pre-set anti-arch, effectively offsetting load deformation during pouring and avoiding the risk of collapse due to unsupported pouring. In the monitoring components, a laser emitter assists in controlling the concrete pouring thickness, temperature and displacement sensors monitor curing temperature and structural deformation in real time, and an industrial camera pre-inspects welding quality. All data is wirelessly transmitted to a mobile phone, achieving full-process quality control and reducing rework caused by human experience errors. The construction method supports local single-layer single-span and multi-layer multi-span concentrated pouring. The platform is reusable, improving construction efficiency and saving time and costs. Simultaneously, it avoids problems such as steel bar deformation and node damage caused by construction personnel directly stepping on the truss steel plates, ensuring the quality and rigidity of the floor slab. Attached Figure Description
[0028] Figure 1 This is a three-dimensional structural diagram of the construction platform support after installation of the present invention;
[0029] Figure 2 This is a schematic diagram of the overall structure of the construction platform support of the present invention;
[0030] Figure 3 This is an enlarged view of the tie-up mechanism of the present invention;
[0031] Figure 4 This is a schematic diagram of the construction platform support structure from another perspective.
[0032] Figure 5 For the present invention Figure 4 Enlarged view of point A.
[0033] In the diagram: 1. Construction platform support; 101. Support crossbar; 102. Support longitudinal bar; 103. Support vertical bar; 104. Support diagonal bar; 105. T-junction connector; 106. Diagonal connector; 107. Bottom connector; 108. Bottom gasket; 109. Concrete positioning block; 2. Tie-in mechanism; 201. Tie rod; 202. First slide cylinder; 203. Tie bar; 204. Second slide cylinder; 205. Adjusting bolt; 206. Connector; 3. Platform plate; 4. Connecting block; 5. Steel beam; 6. Truss steel plate; 7. Steel column; 8. Laser emitter. Detailed Implementation
[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0035] The embodiments of the present invention will now be described.
[0036] Example
[0037] like Figure 1-5 As shown, the pouring platform and construction method provided in this embodiment achieve efficient and safe pouring of steel structure truss steel plate composite slabs through the coordinated design of modular supports, tie mechanisms and monitoring components. The specific structure is as follows;
[0038] Construction platform support 1
[0039] Composition structure: It is composed of support crossbar 101, support longitudinal bar 102, support vertical bar 103 and support diagonal bar 104, which are connected by tee connector 105, diagonal connector 106 and other components.
[0040] Two retractable support crossbars 101 and two support longitudinal bars 102 are inserted end to end to form a rectangular planar frame. Support vertical bars 103 are inserted at the four corners. The bottom is fixed with bottom pads 108 through bottom connectors 107 and supported on concrete positioning blocks 109 on top of steel beam 5.
[0041] The diagonal braces 104 are inserted at the four corners of the frame and fixed to the horizontal and vertical members by diagonal connectors 106, forming a stable structure 30cm above the floor slab, with an overall load-bearing capacity ≥5kN / m. 2 ;
[0042] Operating platform components
[0043] Platform plate 3: It is made of aluminum alloy plate and steel pipe welded together. It is fixed in the center of the construction platform support 1 by connecting plug 4. The surface is treated with anti-slip treatment for construction personnel to stand and operate. The size is adapted to the internal space of the frame. Platform plate 3 can be selected in different sizes according to the different extension lengths of the construction platform support 1.
[0044] Connecting Mechanism 2
[0045] Tie rod 201: Both ends are slidably connected to the support crossbar 101 via the first sliding cylinder 202, and the position can be adjusted along the crossbar;
[0046] Tie bar 203: The top is slidably connected to the tie rod 201 via the second sliding cylinder 204, the middle is provided with an adjusting bolt 205, and the lower end is welded to the truss steel bar via a connector 206. The upper tension can be provided by the expansion and contraction of the bolt.
[0047] Function: Arranged according to the three-point stress principle of composite slab, after tensioning, it will cause the truss steel plate 6 to produce a pre-set anti-camber of 2-3mm to offset the deformation during casting;
[0048] Monitoring components
[0049] Laser emitter 8: Installed on the vertical rod 103 of the support, the height from the top surface of the floor slab is adjusted according to the preset pouring thickness, and horizontally projects a grid-shaped laser plane to help control the concrete pouring thickness error ≤5mm;
[0050] Sensor group: The temperature sensor is attached to the connector 206 to monitor the concrete curing temperature, and the displacement sensor is fixed to the tie bar 203 to monitor the deformation of the truss steel plate in real time.
[0051] Industrial camera: fixed at the bottom center of platform plate 3, with the lens facing downwards to film the welding nodes of the truss steel bars and truss steel plates, and to detect the welding quality through visual recognition;
[0052] Data transmission: All monitoring data is transmitted to a mobile app via wireless signal to enable remote monitoring and early warning.
[0053] A construction method for casting composite steel plate truss slabs, including a partial single-layer, single-span casting process:
[0054] Construction preparation
[0055] Determine the number of platforms based on the pouring area, transport the support components, platform plates, tie mechanisms, etc. to the site, and check the connection quality between the truss steel plate 6 and the steel beam 5.
[0056] Platform construction
[0057] Adjust the length of the crossbar 101 of the support according to the span of the pouring, assemble the rectangular frame through the tee connector 105, insert the vertical bar 103 and the diagonal bar 104 of the support to form the construction platform support 1, place the entire support on the concrete positioning block 109 of the steel beam 5, install the laser emitter 8, sensor and industrial camera, and fix the platform plate 3 through the connecting plug 4.
[0058] Installation of tie system
[0059] Slide the tie rod 201 to the third point position. After the tie bar 203 is positioned by the second sliding cylinder 204, weld the connector 206 to the truss steel bar. Rotate the adjusting bolt 205 to tension the tie bar 203, so that the truss steel plate 6 produces a preset anti-arch. Fine-tune it to the design value according to the displacement sensor data.
[0060] Pouring and curing
[0061] Construction workers stand on platform 3 to spread the concrete, controlling the pouring thickness according to the laser grid. After initial smoothing, the concrete is initially set. The curing temperature is monitored by temperature sensors and maintained at 5-35℃. Once the design strength reaches ≥75%, the platform is removed and moved to the next area.
[0062] Multi-layer and multi-span centralized pouring process
[0063] Flow section division
[0064] The construction area is divided into N, N+1, N+2... based on the number of floors and spans. The number of platforms required for each work team is usually 2-3 sets.
[0065] Multi-platform simultaneous setup
[0066] The construction platform support 1 for two work teams was assembled at one time and placed in Zone N and Zone N+1 respectively, and the monitoring components were installed and the platform was erected simultaneously.
[0067] Tie and pour
[0068] The same single-layer process is used to install the tie system. Zone N is poured first, and then Zone N+1 is poured after completion. The platform is used to improve efficiency.
[0069] Platform turnover
[0070] After the concrete in zone N reaches its strength, the platform is removed to zone N+2. After zone N+1 is completed, it is removed to zone N+3. This cycle continues until all floors are poured.
[0071] The tie mechanism 2 offsets the pouring load by pre-setting an anti-arch, and combined with the triangular stabilizing structure of the support, the maximum deformation of the truss steel plate 6 is controlled within L / 500 (L is the span), avoiding the risk of collapse. The modular plug-in support has a disassembly and assembly time of ≤30 minutes / set. Multi-layer and multi-span pouring is carried out in a flow operation through platform turnover, saving 40% of the construction period and reducing labor costs by 30% compared with traditional scaffolding support. The laser emitter 8 precisely controls the pouring thickness, the sensor monitors deformation and temperature in real time, and the industrial camera pre-inspects the welding quality, reducing the rework rate in all aspects and improving the accuracy of floor slab construction.
[0072] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.
Claims
1. A steel structure truss steel plate composite slab casting platform, characterized in that, include: The construction platform support (1) is composed of support crossbars (101), support longitudinal bars (102), support vertical bars (103) and support diagonal bars (104) that are interlocked. Two telescopic support crossbars (101) and two support longitudinal bars (102) are interlocked to form a rectangular planar frame. The support vertical bars (103) are inserted at the four corners of the frame and supported on the bottom pads (108). The support diagonal bars (104) reinforce the four corners of the frame, together forming a stable structure that is 30 cm higher than the floor slab. The work platform component is a platform plate (3) welded from aluminum alloy plate and steel pipe. It is fixed in the center of the construction platform support (1) by a pin for construction personnel to operate. The platform plate (3) and the construction platform support (1) are connected and fixed by a connecting block (4). The tying mechanism (2) includes a tying rod (201), a tying bar (203), an adjusting bolt (205), and a connector (206). The two ends of the tying rod (201) can slide on the crossbar (101) of the support. The tying bar (203) is slidably connected to the tying rod (201) via a special fastener and can extend and retract via the adjusting bolt (205). The lower end is welded to the truss reinforcement via the connector (206) to provide upward tension for the truss reinforcement. The monitoring components include a laser emitter (8) mounted on the support column (103), a plane mesh for projecting the pouring height, a temperature sensor set on the connector (206), a displacement sensor fixed on the tie bar (203), and an industrial camera fixed at the bottom center of the platform plate (3). Each component transmits data to the mobile phone software via wireless signal to realize the monitoring and control of the pouring process.
2. The steel structure truss steel plate composite slab casting platform according to claim 1, characterized in that: In the construction platform support (1), two telescopic support horizontal bars (101) and two support vertical bars (102) are connected end to end by four sets of tee connectors (105). The tops of the four support vertical bars (103) are respectively connected to the four sets of tee connectors (105). Each set of support vertical bars (102) has a support diagonal bar (104) obliquely inserted on the outside through the bottom connector (107). The tops of the support diagonal bars (104) are respectively connected to the support horizontal bars (101) and the support vertical bars (102) through oblique connectors (106).
3. The steel structure truss steel plate composite slab casting platform according to claim 2, characterized in that: The bottom connector (107) has a bottom pad (108) fixed at the bottom. The construction platform bracket (1) is installed on the top of the steel beam (5) with four sets of steel columns (7) at the bottom. Concrete positioning blocks (109) that cooperate with the bottom pad (108) are fixed at the four corners of the top of the steel beam (5).
4. The steel structure truss steel plate composite slab casting platform according to claim 3, characterized in that: The steel beam (5) has a truss steel plate (6) fixed inside, and the top of the truss steel plate (6) is fixed with woven truss steel bars that are fixedly connected to the connector (206).
5. The steel structure truss steel plate composite slab casting platform according to claim 4, characterized in that: The two ends of the tie rod (201) are slidably connected to the first slide cylinder (202) and the support crossbar (101), which can adjust the position of the tie rod (201) on the construction platform support (1). The top of the tie bar (203) is fixed with a second slide cylinder (204) that is slidably connected to the tie rod (201), which is used to adjust the position of the tie bar (203) on the tie rod (201).
6. The steel structure truss steel plate composite slab casting platform according to claim 1, characterized in that: The laser emitter (8) is installed on the support vertical rod (103) at a certain height from the top surface of the floor slab. This height is adjusted according to the preset pouring thickness. The laser emitter (8) projects the pouring height plane grid horizontally into the floor slab plane to assist construction personnel in controlling the concrete pouring thickness. The temperature sensor is an instant temperature plate, which is attached to the upper surface of the connector (206) at the lower end of the tie bar with high temperature resistant adhesive. The temperature data is sent to the mobile phone software via wireless signal. The displacement sensor is installed on the tie bar (203) and also sends the displacement data to the mobile phone software via wireless signal. The industrial camera is set at the center of the bottom of the platform plate (3) and is fixed by bolts or welding. Its lens faces downward and is used to photograph the truss reinforcement and steel plate below. The welding status of the truss reinforcement and steel plate before pouring is detected by visual recognition.
7. A method for casting composite steel plate slabs in a steel structure truss, characterized in that... Construction using the steel structure truss steel plate composite slab casting platform as described in any one of claims 1-6 includes two methods: partial single-layer single-span casting and multi-layer multi-span concentrated casting. Partial single-layer single-span casting includes the following steps: Step 1: Before pouring the composite slab, determine the number of construction platforms according to the pouring area and transport all components to the vicinity of the pouring area; Step 2: Complete the assembly of the required construction platform support (1) in one go. Determine the size of the construction platform support (1) according to the span of the pouring. Erect it along the long side of the truss steel plate (6). Position it on the steel beam (5) with concrete positioning blocks (109). Sequentially splice the support crossbar (101), support vertical bar (103), support diagonal bar (104), and tie rod (201). Place the construction platform support (1) as a whole on the concrete positioning block (109), install various sensors, and erect the platform plate (3). Step 3: According to the principle of tie at the three points of the stress of the composite plate, after determining the position of the tie rod (201), install the tie bar (203), adjusting bolt (205), and connector (206). Weld the lower end of the connector (206) to the truss steel bar of the composite plate. Rotate the adjusting bolt (205) to make the tie bar (203) tensioned and make the truss steel plate (6) produce a certain anti-arch. During the process, fine adjust the tie bar (203) according to the displacement sensor data. Step 4: Start pouring. The construction workers stand on the platform board (3) to spread the concrete and smooth it out. After the concrete reaches the required strength, the construction platform support (1) is removed and cleaned up. The concrete is then cured in a timely manner according to the temperature sensor data.
8. The construction method for casting composite steel plate truss slabs according to claim 7, characterized in that: Multi-layer, multi-span centralized casting includes the following steps: Step 1: Before pouring, determine the number of construction platform supports (1) required for a team according to the flow rhythm, and transport all components to the vicinity of the pouring area; Step 2: Complete the assembly of the construction platform support (1) for two work groups at one time, place them in different work areas, determine the size of the construction platform support (1) according to the span of pouring, erect it along the long side of the truss steel plate (6), use concrete positioning blocks (109) to position it on the steel beam (5), and splice the support crossbar (101), support vertical bar (103), support diagonal bar (104), and tie rod (201) in sequence. Place the construction platform support (1) as a whole on the concrete positioning block (109), install various sensors, and erect the platform plate (3). Step 3: According to the principle of tie at the three points of the stress of the composite plate, after determining the position of the tie rod (201), install the tie bar (203), adjusting bolt (205), and connector (206). Weld the lower end of the connector (206) to the truss steel bar of the composite plate. Rotate the adjusting bolt (205) to make the tie bar (203) tensioned and make the truss steel plate (6) produce a certain anti-arch. During the process, fine adjust the tie bar (203) according to the displacement sensor data. Step 4: The Nth area begins to be poured. The construction workers stand on the platform board (3) to operate. After the pouring is completed, the N+1th area is poured in succession. After the N+1th area is poured and the concrete in the Nth area reaches the strength, the construction platform of the Nth area is dismantled to the N+2 area and the construction platform of the N+1 area is dismantled to the N+3 area for reuse until all floors are poured. After cleaning and recycling, each area is cured in time according to the temperature sensor data after the pouring is completed.
Citation Information
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