Prefabricated wall for water conservancy building construction and manufacturing method thereof

Abstract

The invention discloses a prefabricated wall for water conservancy building construction and a manufacturing method thereof.According to the technical scheme, the prefabricated wall for water conservancy building construction is characterized in that the prefabricated wall comprises a prefabricated frame and a wall part assembled in the prefabricated frame, the prefabricated frame comprises a frame body and a panel, an air exchange channel is formed in the frame body, and the panel is arranged in the frame body; an air exchange channel is formed in the panel, an air inlet communicated with the air exchange channel is formed in one side of the frame body, an air outlet communicated with the air exchange channel is formed in the panel, a first baffle is hinged to the air outlet, and an auxiliary air opening is formed in the position, opposite to the first baffle, of the frame body. The prefabricated wall body for water conservancy building construction is composed of the prefabricated frame and the wall body part assembled in the prefabricated frame, can be suitable for being used in offices and the like in water conservancy buildings, and has the effects of being capable of being rapidly used, achieving fresh air and being capable of insulating sound.

Description

Technical Field

[0001] This invention relates to the field of precast wall technology, and in particular to a precast wall for hydraulic engineering construction and its manufacturing method. Background Technology

[0002] Office buildings in water conservancy construction are auxiliary buildings of water conservancy facilities. They are often built directly next to water conservancy projects, and their environment is noisy and has a lot of water vapor.

[0003] Referring to the existing Chinese patent CN108316542B, which discloses a bamboo-like structural steel pipe for manufacturing building structural frames, the steel pipe comprises a cylindrical tubular body with X-shaped cross-sections evenly spaced within the tubular body's cavity. The distance between the center points of two tube wall supports is 3-6 times the diameter of the tubular body, and sealing end caps are fitted at both ends of the tubular body. This bamboo-like structural steel pipe is not only lightweight, high-strength, and bend-resistant, but also easy to manufacture and can be mass-produced. In areas where bamboo is not produced, it can replace bamboo poles in the manufacture of building structural frames. This invention also provides a precast wall panel containing the aforementioned bamboo-like structural steel pipe.

[0004] For example, Chinese patent CN115467447A discloses a prefabricated wall, including an inner panel; an outer panel connected to the inner panel; inner and outer keels connected to the inner panel and the outer keel connected to the outer panel; wherein a gap is formed between the inner and outer keels, and the gap is filled with a vacuum insulation component. This is achieved by connecting the inner keel to the inner panel and the outer keel to the outer panel, with a gap formed between them, and filling the gap with a vacuum insulation component, such as a vacuum insulation board, which is an ultra-thin, high-efficiency thermal insulation material.

[0005] The aforementioned patent has some advantages, but also some disadvantages, such as the inability to achieve fresh air and noise reduction effects. Therefore, a prefabricated wall structure for hydraulic engineering construction and its manufacturing method were designed. Summary of the Invention

[0006] In view of the problems mentioned in the background art, the purpose of this invention is to provide a precast wall for hydraulic engineering construction and its manufacturing method, so as to solve the problems mentioned in the background art.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0008] A precast wall for hydraulic engineering construction includes a precast frame and a wall section assembled in the precast frame. The precast frame includes a frame body and a panel. A ventilation channel is provided in the frame body. An air inlet communicating with the ventilation channel is provided on one side of the frame body. An air outlet communicating with the ventilation channel is provided on the panel. A first baffle is hinged to the air outlet. An auxiliary air outlet is provided on the frame body opposite to the first baffle. A second baffle is hinged to the auxiliary air outlet. A blower is provided in the ventilation channel. A linkage control mechanism for controlling the opening and closing of the first and second baffles is also provided in the ventilation channel. Torsion springs are respectively provided on the outside of the hinge shafts of the first and second baffles.

[0009] By adopting the above technical solution, the prefabricated wall for hydraulic construction of the present invention is composed of a prefabricated frame and a wall part assembled in the prefabricated frame. It can be used in offices and other facilities in hydraulic construction, and has the effects of quick use, fresh air supply and sound insulation. When in use, the prefabricated wall can take in air through the air inlet and accelerate the air flow using a blower. When the air force reaches a certain level, the second baffle can be closed and the first baffle can be opened by the linkage control mechanism to achieve air exchange. By pre-setting the air exchange structure in the prefabricated wall, the assembly speed of the building can be improved.

[0010] Preferably, the linkage control mechanism includes a support shaft, a first baffle, a second baffle, a drive impeller, a drive connecting rod, a traction rope, and a movable pulley. The support shaft is rotatably connected in the ventilation channel. The first and second baffles are respectively fixed outside the support shaft. The drive impeller is fixed outside the support shaft. One end of the drive connecting rod is hinged to the first baffle, and the other end of the drive connecting rod is hinged to the first baffle. One end of the traction rope is fixed to the second baffle. The movable pulley is rotatably connected in the ventilation channel, and the other end of the traction rope passes around the movable pulley and is fixed to the second baffle. A torsion spring is installed outside the support shaft.

[0011] By adopting the above technical solution, when the blower blows air into the air exchange channel, it drives the impeller to rotate, thereby driving the support shaft to rotate. When the support shaft rotates, it can drive the first baffle and the second baffle to rotate. When the first baffle rotates, it can drive the drive linkage to swing. When the drive linkage swings, it can push the first baffle to rotate and open. When the second baffle rotates, it can be pulled by the traction rope.

[0012] Preferably, the wall portion includes a first ceramic plate, a first sound-absorbing plate, a sound-insulating plate, a second sound-absorbing plate, and a second ceramic plate. The first sound-absorbing plate is disposed on the lower surface of the first ceramic plate, the sound-insulating plate is disposed on the lower surface of the first sound-absorbing plate, the second sound-absorbing plate is disposed on the lower surface of the sound-insulating plate, and the second ceramic plate is disposed on the lower surface of the second sound-absorbing plate.

[0013] A plurality of first sound-absorbing holes are uniformly arranged on the first ceramic plate, and a first sound-absorbing cavity is opened on the outer surface of the first sound-absorbing plate and communicates with the first sound-absorbing holes. A first sound-absorbing thin plate is embedded inside the first sound-absorbing cavity.

[0014] The second ceramic plate is uniformly provided with a number of second sound-absorbing holes, and the outer surface of the second sound-absorbing plate is provided with a second sound-absorbing cavity that communicates with the second sound-absorbing holes. The second sound-absorbing cavity is embedded with a second sound-absorbing thin plate.

[0015] By adopting the above technical solution, and by setting a first sound-absorbing plate, a second sound-absorbing plate, a first sound-absorbing hole, and a second sound-absorbing hole, sound absorption treatment can be carried out on the outer sides of the first ceramic plate and the second ceramic plate simultaneously, thereby improving the sound absorption performance of the board. Moreover, the front and back do not need to be considered during installation, avoiding installation errors. The first and second sound-absorbing thin plates, under the alternating action of sound pressure, cause bending vibration of the first and second sound-absorbing thin plates, resulting in friction between the first and second sound-absorbing thin plates and the inner walls of the first and second sound-absorbing cavities. The friction loss caused internally converts the kinetic energy of the vibration into heat energy, thereby attenuating the sound energy and thus performing sound absorption treatment. The sound insulation plate can further isolate noise, thereby improving the sound insulation capability of the board.

[0016] Preferably, a first temperature sensor and a second temperature sensor are provided on both sides of the frame, and a controller is provided in the frame. The control input terminal of the controller is electrically connected to the first temperature sensor and the second temperature sensor, and the control output terminal of the controller is electrically connected to the blower.

[0017] By adopting the above technical solution, the temperature on both sides of the frame can be monitored using the first temperature sensor and the second temperature sensor, and the blower can be turned on and off by the controller.

[0018] Preferably, the sound insulation board is a sound-absorbing cotton board, and the sound insulation board is a double-layer structure.

[0019] By adopting the above technical solutions, the sound insulation effect can be increased.

[0020] Preferably, the first silencing hole and the second silencing hole have the same structure and are set as circular, square, rectangular or diamond-shaped holes.

[0021] By adopting the above technical solutions, noise reduction can be easily achieved.

[0022] Preferably, the first sound-absorbing sheet and the second sound-absorbing sheet have the same structure and are both made of plastic.

[0023] By adopting the above technical solution, the plastic sheet has strong toughness and water resistance, ensuring that the first and second sound-absorbing sheets will not be damaged during vibration, thus guaranteeing good sound absorption performance.

[0024] Preferably, one side port of both the first sound-absorbing cavity and the second sound-absorbing cavity is configured as a horn-shaped structure.

[0025] By adopting the above technical solutions, the sound absorption effect can be increased.

[0026] Preferably, both the first sound-absorbing panel and the second sound-absorbing panel are made of wood.

[0027] By adopting the above technical solutions, the structural weight is reduced and structural bonding is facilitated.

[0028] Preferably, the first ceramic plate, the first sound-absorbing plate, the sound-insulating plate, the second sound-absorbing plate, and the second ceramic plate are fixedly connected by an adhesive layer, wherein the adhesive layer is a water-soluble environmentally friendly adhesive layer.

[0029] By adopting the above technical solution, the boards can be easily bonded together, and the bonding effect is good.

[0030] Preferably, the overall thickness of the first ceramic plate, the first sound-absorbing plate, the sound insulation plate, the second sound-absorbing plate, and the second ceramic plate is set to 2-8 cm.

[0031] The present invention also discloses a method for manufacturing precast walls in water conservancy construction, comprising the following steps: producing a precast frame and a wall part respectively, and then embedding and fixing the wall part into the precast frame to obtain a precast wall.

[0032] In summary, the present invention has the following main beneficial effects:

[0033] The prefabricated wall structure for hydraulic engineering construction of this invention consists of a prefabricated frame and wall sections assembled within the prefabricated frame. It is suitable for use in offices and other applications within hydraulic engineering buildings, offering advantages such as rapid deployment, fresh air intake, and sound insulation. During use, the prefabricated wall structure allows air to enter through the air inlet, and a blower accelerates the airflow. When the airflow reaches a certain level, a linkage control mechanism closes the second baffle and opens the first baffle, achieving air exchange. By pre-setting the air exchange structure within the prefabricated wall structure, the assembly speed of the building can be improved. Furthermore, by incorporating a first sound-absorbing plate, a second sound-absorbing plate, a first sound-absorbing hole, and a second sound-absorbing hole, this invention can effectively absorb sound from the first ceramic plate. The invention simultaneously applies sound-absorbing treatment to the outer sides of the first and second ceramic plates, thereby improving the sound absorption performance of the material. Furthermore, installation does not require consideration of the front or back, avoiding installation errors. The invention utilizes a first and second sound-absorbing thin plate, which, under alternating sound pressure, causes bending vibrations in the first and second sound-absorbing thin plates. This generates friction between the first and second sound-absorbing thin plates and the inner walls of the first and second sound-absorbing cavities. The resulting frictional loss converts the kinetic energy of the vibration into heat energy, attenuating the sound energy and thus achieving sound absorption. Finally, the invention incorporates a sound-insulating plate, further isolating noise and improving the sound insulation capability of the material. Attached Figure Description

[0034] Figure 1 This is one of the structural schematic diagrams of the present invention;

[0035] Figure 2 This is the second structural schematic diagram of the present invention;

[0036] Figure 3 This is the third structural schematic diagram of the present invention;

[0037] Figure 4 This is the fourth structural schematic diagram of the present invention;

[0038] Figure 5 This is the fifth structural schematic diagram of the present invention;

[0039] Figure 6 This is the sixth structural schematic diagram of the present invention;

[0040] Figure 7 This is a structural cross-sectional view of the present invention;

[0041] Figure 8 This is the present invention. Figure 7 Enlarged view of point A in the middle;

[0042] Figure 9 This is the present invention. Figure 7 Enlarged view of section B in the middle.

[0043] Reference numerals: 1. First ceramic plate; 2. First sound-absorbing plate; 3. Sound insulation plate; 4. Second sound-absorbing plate; 5. Second ceramic plate; 6. First silencing hole; 7. First sound-absorbing cavity; 8. First sound-absorbing thin plate; 9. Second silencing hole; 10. Second sound-absorbing cavity; 11. Second sound-absorbing thin plate; 12. Frame; 13. Panel; 14. Air exchange channel; 15. Air inlet; 16. Air outlet; 17. First baffle; 18. Auxiliary air outlet; 19. Second baffle; 20. Support shaft; 21. First baffle plate; 22. Second baffle plate; 23. Drive impeller; 24. Drive connecting rod; 25. Traction rope; 26. Movable pulley; 27. Blower. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Example 1

[0046] refer to Figure 1-9 A precast wall for hydraulic engineering construction includes a precast frame and a wall section assembled in the precast frame. The precast frame includes a frame body 12 and a panel 13. A ventilation channel 14 is provided in the frame body 12. An air inlet 15 communicating with the ventilation channel 14 is provided on one side of the frame body 12. An air outlet 16 communicating with the ventilation channel 14 is provided on the panel 13. A first baffle 17 is hinged to the air outlet 16. An auxiliary air outlet 18 is provided on the frame body 12 opposite to the first baffle 17. A second baffle 19 is hinged to the auxiliary air outlet 18. A blower 27 is provided in the ventilation channel 14. A linkage control mechanism for controlling the opening or closing of the first baffle 17 and the second baffle 19 is also provided in the ventilation channel 14. Torsion springs are respectively provided on the outside of the hinge shafts of the first baffle 17 and the second baffle 19. The prefabricated wall for hydraulic construction of the present invention consists of a prefabricated frame and a wall section assembled in the prefabricated frame. It is applicable to offices and other uses in hydraulic construction and has the effects of quick use, fresh air supply, and sound insulation. When in use, the prefabricated wall can take in air through the air inlet 15 and accelerate the airflow using the blower 27. When the airflow reaches a certain level, the second baffle 19 can be closed and the first baffle 17 can be opened by the linkage control mechanism to achieve air exchange. By pre-setting the air exchange structure in the prefabricated wall, the assembly speed of the building can be improved.

[0047] refer to Figure 1-9The linkage control mechanism includes a support shaft 20, a first baffle 21, a second baffle 22, a drive impeller 23, a drive connecting rod 24, a traction rope 25, and a movable pulley 26. The support shaft 20 is rotatably connected in the ventilation channel 14. The first baffle 21 and the second baffle 22 are respectively fixed outside the support shaft 20. The drive impeller 23 is fixed outside the support shaft 20. One end of the drive connecting rod 24 is hinged to the first baffle 21, and the other end of the drive connecting rod 24 is hinged to the first baffle 17. One end of the traction rope 25 is fixed to the second baffle 22. The movable pulley 26 is rotatably connected in the ventilation channel 14, and the other end of the traction rope 25 passes around the movable pulley 26 and is fixed to the second baffle 19. A torsion spring is installed outside the support shaft 20. When the blower 27 blows air into the air exchange duct, it drives the impeller 23 to rotate, thereby driving the support shaft 20 to rotate. When the support shaft 20 rotates, it drives the first baffle 21 and the second baffle 22 to rotate. When the first baffle 21 rotates, it drives the drive linkage 24 to swing. When the drive linkage 24 swings, it pushes the first baffle 17 to rotate and open. When the second baffle 22 rotates, it can be pulled by the traction rope 25. A first temperature sensor and a second temperature sensor are installed on both sides of the frame 12. A controller is installed in the frame 12. The control input terminal of the controller is electrically connected to the first and second temperature sensors, and the control output terminal of the controller is electrically connected to the blower 27. By adopting the above technical solution, the temperature on both sides of the frame 12 can be monitored using the first and second temperature sensors, and the blower 27 can be controlled to start and stop via the controller.

[0048] refer to Figure 1-9A precast wall structure for hydraulic engineering construction and its manufacturing method are disclosed. The wall includes a first ceramic plate 1, a first sound-absorbing plate 2, a sound-insulating plate 3, a second sound-absorbing plate 4, and a second ceramic plate 5. To reduce structural weight and facilitate bonding, both the first sound-absorbing plate 2 and the second sound-absorbing plate 4 are made of wood. The first ceramic plate 1, the first sound-absorbing plate 2, the sound-insulating plate 3, the second sound-absorbing plate 4, and the second ceramic plate 5 are fixedly connected by an adhesive layer, which is a water-soluble environmentally friendly adhesive layer. The overall thickness of the first ceramic plate 1, the first sound-absorbing plate 2, the sound-insulating plate 3, the second sound-absorbing plate 4, and the second ceramic plate 5 is set to 2-8 cm. The first sound-absorbing plate 2 is disposed within the first ceramic plate... On the lower surface of the first sound-absorbing plate 2, a sound-insulating plate 3 is disposed on the lower surface of the first sound-absorbing plate 2, a second sound-absorbing plate 4 is disposed on the lower surface of the sound-insulating plate 3, and a second ceramic plate 5 is disposed on the lower surface of the second sound-absorbing plate 4. A plurality of first sound-absorbing holes 6 are uniformly disposed on the first ceramic plate 1, and a first sound-absorbing cavity 7 communicating with the first sound-absorbing holes 6 is opened on the outer surface of the first sound-absorbing plate 2. A first sound-absorbing thin plate 8 is embedded inside the first sound-absorbing cavity 7. A plurality of second sound-absorbing holes 9 are uniformly disposed on the second ceramic plate 5, and a second sound-absorbing cavity 10 communicating with the second sound-absorbing holes 9 is opened on the outer surface of the second sound-absorbing plate 4. A second sound-absorbing thin plate 11 is embedded inside the second sound-absorbing cavity 10.

[0049] refer to Figure 1-9 This invention, by setting a first sound-absorbing plate 2, a second sound-absorbing plate 4, a first sound-absorbing hole 6, and a second sound-absorbing hole 9, can simultaneously perform sound absorption treatment on the outer sides of the first ceramic plate 1 and the second ceramic plate 5, thereby improving the sound absorption performance of the materials. Furthermore, installation does not require consideration of the front or back, avoiding installation errors. The first sound-absorbing thin plate 8 and the second sound-absorbing thin plate 11 act as springs within the first sound-absorbing cavity 7 and the second sound-absorbing cavity 10. When noise vibrations within the first and second sound-absorbing cavities 7 and 10 act on the surfaces of the first and second sound-absorbing thin plates 8 and 11, the alternating sound pressure causes bending vibrations in the first and second sound-absorbing thin plates 8 and 11, resulting in friction between the first and second sound-absorbing thin plates 8 and 11 and the inner walls of the first and second sound-absorbing cavities 7 and 10. This internal friction loss converts the kinetic energy of the vibration into heat energy, attenuating the sound energy and thus achieving sound absorption. The sound insulation plate 3 further isolates noise, thereby improving the sound insulation capability of the materials.

[0050] refer to Figure 1-8To enhance sound insulation, the sound insulation board 3 is configured as a sound-absorbing cotton board with a double-layer structure. For ease of noise reduction, the first and second sound-absorbing holes 6 and 9 have identical structures and are circular, square, rectangular, or diamond-shaped. The first and second sound-absorbing thin plates 8 and 11 have identical structures and are both made of plastic. The plastic plates possess strong toughness and water resistance, ensuring that the first and second sound-absorbing thin plates 8 and 11 will not break during vibration, thus guaranteeing good sound absorption performance. To further enhance sound absorption, one side of each of the first and second sound-absorbing cavities 7 and 10 is configured as a flared structure. Furthermore, this embodiment also discloses a method for manufacturing prefabricated walls in hydraulic engineering construction, comprising the following steps: producing a prefabricated frame and a wall section separately, then embedding and fixing the wall section into the prefabricated frame to obtain the prefabricated wall.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast wall for hydraulic engineering construction, characterized in that: The system includes a prefabricated frame and wall sections assembled within the prefabricated frame. The prefabricated frame includes a frame body (12) and a panel (13). A ventilation duct (14) is provided in the frame body (12). An air inlet (15) communicating with the ventilation duct (14) is provided on one side of the frame body (12). An air outlet (16) communicating with the ventilation duct (14) is provided on the panel (13). A first baffle (17) is hinged to the air outlet (16). The frame (12) has an auxiliary air inlet (18) opposite to the first baffle (17), and a second baffle (19) is hinged to the auxiliary air inlet (18). A blower (27) is provided in the air exchange channel (14), and a linkage control mechanism for controlling the opening or closing of the first baffle (17) and the second baffle (19) is also provided in the air exchange channel (14). Torsion springs are respectively provided on the outside of the hinge shaft of the first baffle (17) and the second baffle (19).

2. The precast wall structure for hydraulic engineering construction according to claim 1, characterized in that: The linkage control mechanism includes a support shaft (20), a first baffle (21), a second baffle (22), a drive impeller (23), a drive connecting rod (24), a traction rope (25), and a movable pulley (26). The support shaft (20) is rotatably connected in the ventilation channel (14). The first baffle (21) and the second baffle (22) are respectively fixed outside the support shaft (20). The drive impeller (23) is fixed outside the support shaft (20). One end of the drive connecting rod (24) is hinged to the first baffle (21), and the other end of the drive connecting rod (24) is hinged to the first baffle (17). One end of the traction rope (25) is fixed to the second baffle (22). The movable pulley (26) is rotatably connected in the ventilation channel (14). The other end of the traction rope (25) passes around the movable pulley (26) and is fixed to the second baffle (19). A torsion spring is installed outside the support shaft (20).

3. The precast wall structure for hydraulic engineering construction according to claim 1, characterized in that: A first temperature sensor and a second temperature sensor are provided on both sides of the frame (12). A controller is provided in the frame (12). The control input terminal of the controller is electrically connected to the first temperature sensor and the second temperature sensor. The control output terminal of the controller is electrically connected to the blower (27).

4. The precast wall structure for hydraulic engineering construction according to claim 1, characterized in that: The wall section includes a first ceramic plate (1), a first sound-absorbing plate (2), a sound insulation plate (3), a second sound-absorbing plate (4), and a second ceramic plate (5). The first sound-absorbing plate (2) is disposed on the lower surface of the first ceramic plate (1), the sound insulation plate (3) is disposed on the lower surface of the first sound-absorbing plate (2), the second sound-absorbing plate (4) is disposed on the lower surface of the sound insulation plate (3), and the second ceramic plate (5) is disposed on the lower surface of the second sound-absorbing plate (4). The first ceramic plate (1) is uniformly provided with a number of first sound-absorbing holes (6), and the outer surface of the first sound-absorbing plate (2) is provided with a first sound-absorbing cavity (7) that communicates with the first sound-absorbing holes (6). The first sound-absorbing cavity (7) is embedded with a first sound-absorbing thin plate (8). The second ceramic plate (5) is uniformly provided with a number of second sound-absorbing holes (9), and the outer surface of the second sound-absorbing plate (4) is provided with a second sound-absorbing cavity (10) that communicates with the second sound-absorbing holes (9). The second sound-absorbing cavity (10) is provided with a second sound-absorbing thin plate (11) embedded inside.

5. A precast wall for hydraulic engineering construction according to claim 4, characterized in that: The sound insulation board (3) is configured as a sound-absorbing cotton board, and the sound insulation board (3) is configured as a double-layer structure; the first sound-absorbing hole (6) and the second sound-absorbing hole (9) have the same structure and are configured as circular, square, rectangular or rhomboid holes.

6. A precast wall for hydraulic engineering construction according to claim 1, characterized in that: The first sound-absorbing sheet (8) and the second sound-absorbing sheet (11) have the same structure and are both made of plastic. One side port of the first sound-absorbing cavity (7) and the second sound-absorbing cavity (10) are both made of horn. The first sound-absorbing plate (2) and the second sound-absorbing plate (4) are both made of wood.

7. A precast wall for hydraulic engineering construction according to claim 1, characterized in that: The first ceramic plate (1), the first sound-absorbing plate (2), the sound insulation plate (3), the second sound-absorbing plate (4), and the second ceramic plate (5) are fixedly connected by an adhesive layer, which is a water-soluble environmentally friendly adhesive layer.

8. A precast wall for hydraulic engineering construction according to claim 1, characterized in that: The overall thickness of the first ceramic plate (1), the first sound-absorbing plate (2), the sound insulation plate (3), the second sound-absorbing plate (4), and the second ceramic plate (5) is set to 2-8cm.

9. A method for manufacturing precast walls in hydraulic engineering construction, characterized in that: Includes the following steps: Precast frames and wall components are produced separately. The wall components are then embedded and fixed into the precast frames to obtain the precast walls.

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