High-rise building wall concrete intelligent formwork and construction technology

Abstract

The invention discloses a high-rise building wall concrete intelligent formwork and a construction technology. The wall concrete intelligent formwork comprises a formwork support, formwork blocks, a solar photovoltaic power generation system and a control system. Formwork power transmission and communication lines pass through the formwork support square steel pipes, and safety and high efficiency are achieved; the vibrating time is controlled by adopting the pressure sensing probe, so that the vibrating quality of the wall concrete is improved, and the concrete vibrating standardization and standardization are achieved; the solar panel is used for supplying power, thereby saving energy and protecting environment; the surface of the template is coated with a nano material, so that the construction procedure of brushing a release agent is avoided; during wall concrete pouring, the whole process is controlled by a computer, and concrete pouring intellectualization is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering construction, and in particular is an intelligent concrete formwork for a wall of a tall building and a construction process. Background Art

[0002] In recent years, the labor cost of construction projects has become increasingly high, especially for concrete projects on the walls of tall buildings and structures such as concrete silos and towers. The construction process of its concrete wall includes formwork support, steel bar binding, concrete pouring, etc., all of which require a lot of labor and operating costs. When pouring and vibrating the concrete of the walls of tall buildings, it is necessary to set up high-altitude scaffolding and safety maintenance facilities, which consumes a lot of labor and material costs, and there are safety hazards for high-altitude operations of concrete pouring and vibrating personnel. When using commercial concrete for pouring and manual vibration, there are large individual differences in the operation time and vibration intensity of the operators. Therefore, after the wall concrete is formed, its pouring quality varies greatly. There are usually situations such as wall concrete leakage or excessive vibration. Such phenomena as pockmarks, honeycombs, holes, etc., are not vibrated densely, or the template is deformed, shifted, and excessively vibrated. The currently used concrete combined formwork is mainly steel formwork, and also includes new formworks such as large steel-wood formwork, plastic formwork, and aluminum alloy formwork. It has the advantages of strong versatility, easy assembly and disassembly, and many turnover times. It can be used for cast-in-place reinforced concrete structure wall construction. It can be assembled into large wall panel formwork in advance according to design requirements and hoisted into place as a whole, or it can be constructed in bulk and disassembled.

[0003] The invention with the publication number CN108166750A which is closest to the present invention proposes a template and implementation process for the construction of concrete walls without manual vibration. The purpose of concrete vibration is achieved by opening and closing the vibrators at different positions. However, the construction process of the above invention requires manual control, and there are also many disadvantages such as inaccurate control of vibration time and force, which affects the construction quality. Summary of the invention

[0004] The present invention is a high-rise building wall concrete intelligent formwork and construction process, which can automatically control the concrete vibration time and is suitable for integral sliding formwork or integral lifting formwork. The wall concrete intelligent formwork includes a formwork support, a formwork block, and a solar photovoltaic power generation system and control system.

[0005] The formwork support adopts a square steel pipe keel and is fixed by tension bolts, that is, the wall formwork block is installed and fixed by tension bolts through the square steel pipe keel. The inside of the square steel pipe keel is pre-equipped with connecting conductive and communication wires; the outside of the square steel pipe is provided with a connecting socket for connecting power wires and communication wires; the upper and lower sides of the square steel pipe are provided with installation slides, which match the slides of the solar photovoltaic panel and are used for sliding installation of the solar photovoltaic panel. The formwork exciter is fixed at the tension bolts of the outer formwork on the formwork support. When working, the formwork exciter is attached and fixed to the formwork by the tension bolts. The vibration waves generated by the formwork exciter are evenly transmitted to the freshly mixed concrete slurry in the formwork through the tension bolts and the formwork support. The concrete slurry between the inner and outer formworks is vibrated and compacted at the same time by the tension bolts.

[0006] The inner side of the template block adopts nano coating, so that the concrete in the template and the inner wall of the template are bonded smoothly, demoulding is convenient, and it is suitable for the construction of plain concrete. A bolt hole is arranged in the middle of the template block, and the pressure sensor can be screwed into the bolt hole through the bolt hole. The purpose of arranging the pressure sensor on the inner side of the middle of the template block is to detect the density of the concrete in the template through the pressure sensor. The pressure sensor probe is in full contact with the fresh concrete inside the template block, and the compaction degree of the concrete is determined according to the pressure value of the fresh concrete on the pressure sensor, and transmitted to the control system, and the concrete vibration time is automatically controlled by the control system.

[0007] The solar photovoltaic panel is a 2mm flexible solar photovoltaic panel. The back panel is made of polymer material and has weather resistance and waterproof function. Ethylene vinyl acetate film is used to bond the silicon wafer and the back panel to ensure the stability and sealing of the components. The glass cover protects the silicon wafer and other internal components from the influence of the external environment and provides structural support for the photovoltaic panel. The frame is used to fix the various components of the photovoltaic panel to enhance stability and durability. The upper and lower ends of the frame are provided with solar photovoltaic panel slide rib grooves for sliding installation in the square steel pipe slide of the template support. The conductive adhesive strip connects the silicon wafer to conduct the electric energy to the output port of the battery panel. The encapsulation glue is used to close the overall structure of the photovoltaic panel and protect the internal components from the influence of the external environment. The junction box contains the connector of the battery panel, which is used to guide the electric energy to the external device. The battery pack, charging controller, power electronic converter, etc. of the photovoltaic power generation system are arranged at the end of the template support. The template exciter is connected to the rechargeable power supply using the wires in the square steel pipe of the template support. The control system computer host is connected to the pressure sensor and the template exciter through wires.

[0008] An intelligent concrete formwork and construction process for the wall of a high-rise building, a technical solution to solve its technical problems, including the design of formwork brackets, formwork blocks and the implementation process of solar photovoltaic panel combination. The formwork is designed according to the characteristics of the project, the template plane layout, the specifications, quantity and arrangement size of the vertical and horizontal keels are determined, and the strength, rigidity and stability of the wall formwork blocks and formwork bracket supports are verified. An assembly operation platform is set up at the assembly site, and the assembly is carried out according to the template design drawing. Each template rib hole of two adjacent plates must be clamped with a U-shaped clamp. After the wall reinforcement is tied, the water and electricity pipelines and embedded parts are installed, the steel bar protective layer pad is tied, and the pre-assembled one side of the template is in place according to the position line, and then the tie rod or diagonal brace is installed, and the template is fixed with through-wall tension bolts. Clean the debris in the wall, then install the template on the other side, adjust the diagonal brace to make the template vertical, and tighten the through-wall tension bolts. After the template is installed, check whether the fasteners and tension bolts are tightened, and whether the template joints and bottom are tight. Finally, screw in the concrete pressure sensor through the bolt hole in the middle of the template block. The spacing should be clearly specified when designing the template. Finally, install the solar photovoltaic panel on the sunny side and connect the line through the wire and wire jack. The specific implementation steps are as follows: A. Lay out the lines at the concrete wall construction site according to the design requirements; B. Install the template support according to the specifications, quantity, and arrangement size of the designed square steel pipe keel; C. Install the template block and fix the template block with through-wall tension bolts; D. Fix the concrete template exciter at the tension bolts; E. Install the pressure sensor at the bolt hole of the template pressure sensor to measure the density of the concrete. The spacing is determined when designing the template; F. Install the solar photovoltaic panel at the square steel pipe slide; G. Use the wire jack on the outside of the square steel pipe for line connection.

[0009] Further, step B includes arranging the wiring in the square steel pipe in advance and providing a wire jack on the outside of the square steel pipe;

[0010] Further, step D includes connecting the template exciter wire to the wire jack on the square steel pipe;

[0011] Furthermore, step E includes connecting the pressure sensor to the computer control system via a wire, and when the pressure value of the fresh concrete reaches a certain value and lasts for a certain period of time, the corresponding template vibrator automatically stops vibrating.

[0012] The beneficial effects of the present invention are that the template power transmission and communication lines pass through the square steel pipes of the template support, which is safe and efficient; in the process of high-rise building wall concrete construction, a large amount of concrete vibration costs are saved and the vibration efficiency is improved. When working at high altitudes, the huge safety hazards of manual vibration are avoided. The wall concrete intelligent template of the present invention transmits the exciting force of the template vibrator to the inner and outer templates of the wall evenly through the tension bolts. The pressure sensing probe is used to control the vibration time, which improves the quality of wall concrete vibration and achieves the normalization and standardization of concrete vibration; the solar panels are used to provide electricity, which is suitable for remote areas without electricity supply, and is energy-saving and environmentally friendly; the inner surface of the template block is nano-coated to avoid the construction process of applying a release agent. The entire process of wall concrete pouring is controlled by a computer to realize intelligent concrete pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A diagram of a combination of intelligent concrete formwork for a high-rise building wall; Figure 2 This is a partial diagram of a smart concrete formwork for a high-rise building wall; Figure 3 This is a diagram of a single formwork block of intelligent formwork for concrete walls of tall buildings. 1. Formwork support; 1-1. Tension bolts; 1-2. Wire jack; 2. Formwork block; 2-1. Inner formwork block; 2-2. Nano coating; 2-3. Formwork rib hole; 2-4. Pressure sensor bolt hole; 3. Solar photovoltaic panel; 3-1. Solar photovoltaic panel slideway; 4. Formwork exciter; 5. Control system; 6. Connecting wire. DETAILED DESCRIPTION

[0014] Example 1

[0015] An intelligent concrete formwork and construction process for the wall of a tall building. Taking the construction of a high-rise shear wall structure as an example, the wall formwork is assembled on site. The specific implementation steps are as follows:

[0016] A. Lay out the lines at the concrete wall construction site according to the design requirements; B. Install the formwork support (1) according to the design. The formwork support (1) uses double 50×100mm steel pipes. The configuration of the steel pipes takes into account the distribution of the concrete side pressure in the vertical direction. The first back rib is set 300mm from the top of the floor slab, and then a steel pipe back rib is set every 600mm upwards. A back rib needs to be set at the template closing position; C. Install the formwork block (2) and fix the formwork block (2) with through-wall tension bolts (1-1). The through-wall tension bolts (1-1) use Φ16 bolts with a spacing of 600mm and a φ25PVC sleeve on the outer sleeve; D. Fix the formwork exciter (4) at the tension bolts with a spacing of 1.5m. The concrete formwork exciter (4) uses a 1.5KW high-frequency vibrator, which is connected to the control system (5) through the wire jack (1-2) on the square steel pipe; E. A pressure sensor probe is screwed into the bolt hole (2-4) of the template pressure sensor with a spacing of 1.5m, and is used to measure the density of concrete. The pressure sensor is connected to the computer control system (5) through a connecting wire (6); F. A solar photovoltaic panel (3) is installed at the solar photovoltaic panel slideway (3-1). The solar photovoltaic panel (3) is set on the sunny side and is connected to the battery group, charging controller, and power electronic converter of the power generation system through a connecting wire (6); G. The line connection is made using the wire jack (1-2) on the outer side of the square steel pipe; H. The lateral pressure value of the concrete at the sensor probe is set according to the effective pressure head of the concrete pouring height and is pre-input into the computer control system (5); I. Concrete is poured. After the lateral pressure value of the concrete at the sensor probe reaches a certain value and lasts for a certain time, the corresponding template exciter (4) automatically stops vibrating.

[0017] Example 2

[0018] An intelligent formwork and construction process for the wall concrete of a high-rise building. Taking the construction of a high-rise silo wall as an example, this embodiment adopts a construction process for overall lifting of the wall concrete formwork according to the requirements of the concrete vibration process. Before the construction of the concrete wall, a scaffolding for overall lifting of the wall concrete is pre-installed, and the scaffolding lifting system is connected to a computer control system. The specific implementation steps are as follows:

[0019] A. Lay out the lines at the construction site of the silo concrete wall according to the design requirements; B. Install the wall concrete integral lifting scaffolding system according to the design; C. Install the template block (2) and fix the template block (2) with the through-wall tension bolts (1-1). The through-wall tension bolts (1-1) are Φ16 bolts with a spacing of 600mm and a φ25PVC sleeve on the outer sleeve; D. Fix the template exciter (4) at the tension bolts (1-1) with a spacing of 1.5m. The template exciter (4) is a 1.5KW high-frequency vibrator, which is connected to the control system (5) through the wire jack (1-2) on the square steel pipe; E. Screw in and install the pressure sensor probe at the template pressure sensor bolt hole (2-4) with a spacing of 1.5m to measure the concrete density; F. Install the template exciter (4) at the solar photovoltaic panel slideway ( 3-1) is provided with a solar photovoltaic panel (3), which is arranged on the sunny side and is connected to a battery pack, a charging controller and a power electronic converter of a power generation system through a connecting wire (6); G. The wire jack (1-2) on the outer side of a square steel pipe is used for line connection; H. The lateral pressure value of the concrete at the sensor probe is set according to the effective pressure head at the concrete pouring height and is input into a computer control system (5) in advance; I. After the wall formwork of the concrete integral lifting scaffolding system is installed, the wall concrete is poured. When the lateral pressure value of the concrete at the sensor probe reaches a certain value and lasts for a certain period of time, the corresponding formwork exciter (4) automatically stops vibrating; J. The lifting of the wall concrete integral lifting scaffolding system is completed, and preparations are made for pouring the next unit wall concrete.

Claims

1. A high-rise building wall concrete intelligent formwork and construction process, characterized in that: The wall concrete intelligent formwork includes a formwork support, a formwork block, a solar photovoltaic power generation system and a control system. The wall concrete intelligent formwork transmits the excitation force of the formwork vibrator to the inner and outer wall formworks evenly through tension bolts; a pressure sensing probe is used to control the vibration time; a solar panel is used to provide electricity; and a nano coating is used on the inner surface of the formwork block.

2. The intelligent formwork and construction process for high-rise building wall concrete according to claim 1 is characterized in that: The formwork support adopts a square steel pipe keel and is fixed by tension bolts; the inside of the square steel pipe keel is pre-arranged with connecting conductive and communication wires; a connecting jack is arranged on the outside of the square steel pipe; installation slides are arranged on the upper and lower sides of the outside of the square steel pipe, and match the slides of the solar photovoltaic panel; the formwork exciter is fixed at the tension bolts of the outer formwork on the formwork support, and the vibration waves generated by the formwork exciter are evenly transmitted to the freshly mixed concrete slurry in the formwork through the tension bolts and the formwork support, and the concrete slurry between the inner and outer formworks is vibrated and compacted at the same time through the tension bolts.

3. According to the intelligent formwork and construction process for concrete walls of high-rise buildings described in claim 1, a nano-coating is used on the inner side of the formwork block, a bolt hole is set in the middle of the formwork block, and a pressure sensor is spirally inserted into the screw hole through the bolt hole; a pressure sensor is set on the inner side of the formwork block, and the pressure sensor probe is in full contact with the fresh concrete inside the formwork block, and the compaction degree of the concrete is determined according to the pressure value of the concrete, and the concrete vibration time is automatically controlled.

4. The intelligent formwork and construction process for high-rise building wall concrete according to claim 1 is characterized in that: The specific implementation steps are as follows: A. Lay out the lines at the concrete wall construction site according to the design requirements; B. Install the formwork support according to the designed specifications, quantity and arrangement size of the square steel pipe keel; C. Install the formwork blocks and fix them with through-wall tension bolts; D. Fix the concrete vibrator at the tension bolts; E. Install pressure sensors at the bolt holes of the formwork pressure sensors to measure the density of concrete. The spacing between them is determined during the formwork design. F. Install solar photovoltaic panels on the square steel pipe slide; G. Use the wire socket on the outside of the square steel pipe to connect the lines.

5. Step B includes arranging the circuit in the square steel pipe in advance and setting the wire jack on the outside of the square steel pipe; step D includes connecting the wire of the vibrator to the wire jack on the square steel pipe, and step E includes connecting the pressure sensor to the computer control system through the wire. When the concrete pressure value reaches a certain value and lasts for a certain time, the corresponding vibrator automatically stops vibrating.

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