A method for constructing wall columns

Abstract

The application discloses a kind of fence post construction methods, complete the pouring of post foundation in construction site, a few fixed upwards connecting steel bars are pre-poured on post foundation, then the prefabricated hollow structure post prefabricated piece is erected on foundation and is sleeved outside exposed connecting steel bars, pours a section of post-poured section in the lower cavity of post prefabricated piece again, so that post-poured section is integrally connected with post foundation by connecting steel bar, and its characterized in that, the post prefabricated piece is integrally connected by pouring concrete in the pouring connection space interlayer at the position of post cylinder body circumferential side after splicing post cylinder body in length direction, and is obtained.The application has the advantages of being capable of reducing processing difficulty, improving production and processing efficiency and better guaranteeing product shape quality requirements.

Description

Technical Field

[0001] This invention belongs to the field of wall column structures, and specifically relates to a construction method for wall columns. Background Technology

[0002] In architecture, a wall is a vertical spatial partition structure used to enclose, divide, or protect a certain area, typically surrounding a building. The most common wall structure generally consists of vertically spaced columns, a low wall connecting the columns, and railings on top of the low wall. The columns in the wall structure are generally rectangular vertical columns with outward-projecting caps at the top. The columns are usually constructed of bricks with tiles or decorative profiles on the outer surface. This type of wall column has drawbacks such as long construction time and high cost.

[0003] To address the aforementioned deficiencies, the applicant previously applied for patent CN201821257640.0, which describes a column constructed from multiple integral panels. This patent is titled "Wall Column Panel Components and Their Prefabricated Components and Wall Columns." Additionally, the applicant has also applied for patents for column structures formed by splicing multiple column segments along the height direction, such as CN201821258272.1, which discloses a segmental component of a wall column and its structure, and CN2019113967684, which discloses a wall column that facilitates construction.

[0004] Compared to the method of stacking wall bricks, the aforementioned patents simplify the structure and construction process, but still require on-site construction for splicing, and the final appearance quality of the product depends on the precision of the splicing process. Therefore, in order to further improve this defect, the applicant also applied for patent CN202223084055.4 for a wall column structure and its prefabricated hollow column. The prefabricated hollow column is a straight cylindrical rectangular body integrally cast, and its height matches the height of the wall column. Two of the four outer sides of the prefabricated hollow column have shaped surfaces set opposite to the inner and outer sides of the wall, and at least one of the other two outer sides set opposite to the left and right sides of the wall has a low wall and railing connection surface.

[0005] Therefore, the precast hollow columns disclosed in the aforementioned patent CN202223084055.4 can further reduce the on-site construction time for wall columns and better guarantee the product's appearance quality requirements, making them particularly suitable for construction sites with short on-site construction time requirements and heavy workloads. However, these precast hollow columns are hollow column structures with internal reinforcing steel bars. If the traditional formwork and subsequent casting method is used for production and processing, the long column height will result in significant operational and processing difficulties, low production efficiency, and the inability to guarantee product quality and appearance. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is: how to provide a construction method for wall columns that can improve production and processing efficiency and better guarantee the appearance quality requirements of the product.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A method for constructing perimeter wall columns involves pouring the column foundation on-site, pre-casting and fixing several upward-facing connecting steel bars on the column foundation, then placing a prefabricated hollow column component on the foundation and covering it with the exposed connecting steel bars, and then casting a post-cast section in the lower inner cavity of the column component, so that the post-cast section is fixedly connected to the column foundation by the connecting steel bars. The method is characterized in that the column component is obtained by splicing multiple column cylinders along their length, and then casting concrete in the casting connection space interlayer on the periphery of the column cylinders to fix them together.

[0009] In this way, the column is a monolithically cast, precast hollow cylindrical column. Therefore, during on-site construction, only the column foundation needs to be poured. The precast hollow column is then erected on the foundation, and the lower section is poured directly into the column's internal cavity, connecting it to the foundation. Finally, the top cover is placed on top. This method makes construction very convenient and quick, further reducing on-site construction time. It also eliminates the need for splicing the outer surface, thus better ensuring the overall quality of the column's appearance. Furthermore, the precast column components are obtained by splicing multiple cylindrical columns. This is because the height of the precast column components is usually over two meters. If directly using formwork casting, the processing is difficult and prone to insufficient surface precision. Using multiple cylindrical columns for splicing simplifies processing, provides higher surface precision, and better ensures the final quality of the column construction.

[0010] Furthermore, the column body includes an outer cylinder, the outer surface of which forms the outer surface of the column, and an inner cylinder located inside the outer cylinder and spaced apart from it. The inner cylinder and the outer cylinder are connected by connecting ribs and fixed together. The space between the inner cylinder and the outer cylinder forms a casting connection space.

[0011] In this way, multiple column bodies can be prefabricated, aligned vertically, and then joined together. Concrete is then poured into the connection space to bind them together, forming a single prefabricated column. This process is simpler than directly casting a single, integral prefabricated column, and the surface quality of the column is more guaranteed. The aforementioned column body structure has connection spaces on all four sides, facilitating the subsequent installation of vertical reinforcement and stirrups, thus ensuring the overall quality of the final product.

[0012] Furthermore, the inner and outer cylinders are set at the same height at both ends, making them easier to process.

[0013] Furthermore, both the outer and inner cylinders have rectangular cross-sections. Rectangular columns are used more widely.

[0014] Furthermore, at least one end of the outer surface of the outer cylinder has a recessed step. This allows the recessed step to conceal the joint tolerances during assembly, ensuring the quality of the column's shape.

[0015] Furthermore, the height of the column body should be 20-40 cm. If it is too high, it will easily lead to a decrease in the quality of the shape; if it is too low, it will result in too many column bodies needing to be spliced ​​when processing the prefabricated column components, thus increasing the difficulty of splicing and processing.

[0016] Furthermore, each end of each side of the inner cylinder extends outward in the same direction to connect to the outer cylinder and form the connecting rib.

[0017] This not only increases the structural strength, but also creates a space between the two connecting ribs at the corner and the outer cylinder for installing vertical reinforcing bars, facilitating their installation and positioning.

[0018] Furthermore, a notch for installing transverse stirrups is provided at the upper end of the connecting rib.

[0019] This not only facilitates the installation and positioning of the transverse stirrups, but also allows the interlayer concrete to be poured through the gaps in the connection space, enabling all the pouring connection spaces to be connected as a whole, thus improving the post-pouring connection effect and the overall integrity of the final structure.

[0020] Furthermore, the column body is processed using a column body processing and pressing mold, which includes a bottom mold for forming the lower surface of the wall column body; an outer mold with an overall (rectangular) frame structure for forming the circumferential outer surface of the wall column body is provided above the bottom mold, and an outer mold lifting mechanism is also installed on the outside of the outer mold; an inner mold for forming the wall column body and connecting ribs is also provided inside the outer mold, and the upper or lower end of the inner mold is fixedly connected to the outer mold by a horizontally set connecting plate; a top mold for forming the upper surface of the wall column body is also provided above the inner mold, and the upper end of the top mold is installed on the mounting frame by a top mold lifting and pressing device.

[0021] In this way, when producing the column cylinder, the outer mold and inner mold are lowered together and placed on the bottom mold. Then, concrete is poured into the inner cavity of the outer mold, and the top mold is pressed down to compact the concrete and form the wall column cylinder. Compared with the traditional method of casting after setting up the formwork, this method of casting and pressing with a fixed mold can better shorten the product hardening time, improve product processing efficiency, increase product structural strength, and facilitate the processing of wall column cylinders with complex internal cavity structures.

[0022] Furthermore, the bottom mold includes a drive belt and a support base plate located below the upper surface layer of the drive belt.

[0023] In this way, the drive belt remains stationary during processing, acting as the bottom mold. Its material elasticity ensures a tight seal between the bottom and outer molds. After processing, the outer and top molds move upwards, and the product is demolded onto the belt. The belt drive then pulls the product out of the processing station. This allows for more efficient assembly line production and improves overall production efficiency.

[0024] Furthermore, a raised step is provided at the upper inner end of the outer mold.

[0025] This facilitates the processing of the wall post cylinders, which form a concave step at the top, making it easier to conceal the joint tolerances during assembly and ensuring the quality of the post's shape.

[0026] Furthermore, the upper end of the outer mold extends beyond the upper end of the inner mold by a certain distance. This facilitates the top mold being pressed into the outer cavity before contacting the upper end of the inner mold, resulting in a better pressure casting effect.

[0027] Furthermore, the outer mold lifting mechanism includes transverse support arms symmetrically fixed on both sides of the outer surface of the outer mold, and a telescopic cylinder for the outer mold is connected and installed below the transverse support arms, with the telescopic cylinder for the outer mold fixed relative to the ground.

[0028] This makes it easier to control the lifting and lowering of the outer and inner molds.

[0029] Furthermore, a vibration device is also provided on the outer surface of the outer mold.

[0030] This allows for vibration during pouring, achieving a compacting effect.

[0031] Furthermore, the top mold lifting and pressing device includes a top mold telescopic cylinder installed and connected to the upper end of the top mold, and the upper end of the top mold telescopic cylinder is fixed on a gantry frame that serves as an installation bracket.

[0032] This makes it easy to control the lifting and lowering of the top mold.

[0033] Furthermore, the inner mold includes a first mold core with a large rectangular cross-section located in the middle, four second mold cores located on the outer periphery of the first mold core with the same and aligned long side length as the first mold core, and four third mold cores located on the outer periphery of the four corners of the first mold core with the same and aligned short side length as the second mold core. The connecting plate connects the adjacent first mold core, second mold core, third mold core and outer inner side.

[0034] This process allows for the fabrication of a wall post cylinder with an outer cylinder, an inner cylinder forming a grid pattern, and connecting ribs. Specifically, the inner cylinder structure of the wall post cylinder is formed in the space between the first and second mold cores; the connecting ribs of the inner cylinder are formed in the space between the second and third mold cores; and the outer cylinder structure is formed between the second and third mold cores and the inner side of the outer mold. This wall post cylinder structure facilitates the fabrication of prefabricated post structures. During implementation, the connecting plate is a relatively thin (2-5 mm) metal plate, ensuring connection strength while minimizing impact on the product's shape.

[0035] Furthermore, a downward-facing arc-shaped protrusion is provided on the lower surface of the top mold corresponding to the position between the second and third mold cores. This facilitates the formation of a transverse stirrup installation notch on the upper surface of the connecting rib in the manufactured wall column cylinder.

[0036] When using the aforementioned column cylinder processing and pressing mold to produce column cylinders, the drive belt serving as the bottom mold is first paused. The outer and inner molds are lowered together and placed on the upper surface of the belt and supported on the support base plate. Then, precast concrete of a fixed mass is poured into the inner cavity of the outer mold. The vibration device is then started to vibrate for a period of time. Next, the top mold is controlled to press down to compact the concrete and form the wall column cylinder. Then, the top mold and outer mold are controlled to move upward together with the inner mold to complete demolding. The remaining product remains on the belt, and the belt is started to carry the product out of the processing station. This cycle is repeated to achieve intermittent continuous processing. Therefore, it can greatly improve the processing efficiency and quality of column cylinders.

[0037] Furthermore, the precast column component includes multiple column cylinders as described above, which are spliced ​​together along their length. Concrete is poured into the casting connection space of the column cylinders to fix the column cylinders together as a whole.

[0038] These prefabricated column components are easier to process, have higher production efficiency, and better appearance quality.

[0039] Furthermore, in the precast column component, vertical reinforcement bars are cast and fixed at the four corners of the casting connection space, and a horizontally rectangular reinforcement bar is also set and cast and fixed at the horizontal stirrup installation notch of the connecting rib of each column body.

[0040] This can better improve the structural strength of the precast column components.

[0041] Alternatively, the stirrups can be standard stirrups for rectangular frame structures, which are easy to manufacture.

[0042] As an alternative, the stirrups consist of four connecting bars joined in pairs at 90-degree angles. Each connecting bar has a bent hook end at both ends for connection and fixation to the vertical bars. An elastic section is provided in the middle of the connecting bar. When the elastic section is not under stress, the length of the connecting bar is less than the minimum connection distance between the two vertical bars on one side (the minimum connection distance is the distance between the outer sides of the two connecting ribs on one side of the inner cylinder plus the sum of the diameters of the two vertical bars). With this stirrup structure, during construction, after the connection of a single column cylinder is completed, the four connecting bars can be directly hooked onto the vertical bars to form the stirrups, eliminating the need for top-level installation, thus making installation more convenient and faster. More importantly, after the stirrup structure is installed, each vertical bar will be subjected to the same tensile force in the connection direction of the two connecting bars. This will cause the vertical bars to be pulled tightly against the angle between the two connecting ribs at the outer end of the inner cylinder corner. Through the force exerted by the vertical bars, the connected column cylinder can be completely aligned with the lower column cylinder, thus achieving an automatic alignment installation effect. At the same time, the provided pre-tightening force ensures that the concrete poured in the connection space will not deform due to vibration or other reasons, ensuring the appearance quality after pouring. Therefore, it not only improves the installation efficiency of a single column cylinder, but also better guarantees its installation quality, preventing grout leakage when pouring concrete in the connection space, and ultimately resulting in a column precast component with better appearance quality.

[0043] Furthermore, the elastic segment is formed by a 360-degree curved winding portion.

[0044] It is easier to process and prepare, and the amount of elasticity generated can be easily controlled by adjusting the size of its winding diameter.

[0045] Specifically, the precast column is prepared by the following steps: 1. Obtain multiple column cylinders, place one column cylinder vertically on a casting base plate, and vertically insert four vertical ribs of the same length as the precast column into the casting connection spaces at the four corners of the column cylinder; 2. Arrange four connecting ribs in the horizontal stirrup installation notches at the upper ends of the connecting ribs on the four sides of the column cylinder, and stretch and hook them onto the corresponding vertical ribs to form the stirrup structure of this layer; 3. Insert the next column cylinder directly onto the four vertical ribs, repeat step 2 to connect the stirrup structure of this layer, and make the column cylinders of this layer automatically aligned by the force of the stirrups and vertical ribs; 4. Repeat step 3 until all the column cylinders of the precast column are installed, inject concrete into the casting connection space to complete the casting, and fix all the column cylinders into one piece to obtain the precast column.

[0046] Therefore, this method makes it easier and faster to prepare the prefabricated column components and better ensures the overall quality.

[0047] The present invention also discloses a wall post, comprising a post body obtained from the above-mentioned post prefabricated components, a top cover provided at the upper end of the post body, a post foundation cast below the ground surface at the lower end of the post body, and a lower post-cast section cast at the lower part of the inner cavity of the post body, the lower post-cast section and the post foundation being cast and connected as one unit.

[0048] In this way, the column is a monolithically cast, precast hollow cylindrical column. Therefore, during on-site construction, only the foundation needs to be poured. The precast hollow column is then erected on the foundation, and the lower section is poured directly into the column's internal cavity, connecting it integrally with the foundation. Finally, the top cover is placed on top. This solution makes construction very convenient and quick, further reducing on-site construction time. Furthermore, the absence of splicing the outer surface during construction better ensures the overall quality of the column's appearance.

[0049] In summary, the present invention has the advantages of reducing processing difficulty, improving production efficiency, and better ensuring the product's appearance quality requirements. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the column cylinder used in this invention.

[0051] Figure 2 for Figure 1 Top view.

[0052] Figure 3 for Figure 1 AA sectional view.

[0053] Figure 4 This is a schematic diagram of the prefabricated column used in this invention.

[0054] Figure 5 for Figure 4 The top view shows the concrete poured within the connection space, but this view does not show the concrete.

[0055] Figure 6 for Figure 5 A schematic diagram of the structure of a single connecting rib.

[0056] Figure 7 This is a top view of a prefabricated column component that can be implemented in another way.

[0057] Figure 8 This is a cross-sectional view of the wall pillars produced by the present invention.

[0058] Figure 9 This is a schematic diagram of the structure of the column cylinder processing and pressing mold used in this invention.

[0059] Figure 10 for Figure 9 Cross-sectional views of the outer and inner molds separately. Detailed Implementation

[0060] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0061] In specific implementation: A method for constructing wall columns involves pouring the column foundation at the construction site, pre-casting and fixing several upward connecting steel bars on the column foundation, then placing the prefabricated hollow column components on the foundation and covering the exposed connecting steel bars, and then casting a post-cast section in the lower inner cavity of the column prefabricated component, so that the post-cast section is fixedly connected to the column foundation through the connecting steel bars. The characteristic is that the column prefabricated component is obtained by splicing multiple column cylinders along the length direction, and then casting concrete in the casting connection space interlayer at the periphery of the column cylinder to fix them together.

[0062] In this way, the column is a monolithically cast, precast hollow cylindrical column. Therefore, during on-site construction, only the column foundation needs to be poured. The precast hollow column is then erected on the foundation, and the lower section is poured directly into the column's internal cavity, connecting it to the foundation. Finally, the top cover is placed on top. This method makes construction very convenient and quick, further reducing on-site construction time. It also eliminates the need for splicing the outer surface, thus better ensuring the overall quality of the column's appearance. Furthermore, the precast column components are obtained by splicing multiple cylindrical columns. This is because the height of the precast column components is usually over two meters. If directly using formwork casting, the processing is difficult and prone to insufficient surface precision. Using multiple cylindrical columns for splicing simplifies processing, provides higher surface precision, and better ensures the final quality of the column construction.

[0063] Furthermore, the column cylinder, see... Figure 1-3 It includes an outer cylinder 1, the outer surface of which is used to form the outer surface of the column. It also includes an inner cylinder 2 located inside the outer cylinder 1 and spaced apart. The inner cylinder 2 and the outer cylinder are fixed together by connecting ribs 3. The space between the inner cylinder 2 and the outer cylinder 1 forms a casting connection space 4.

[0064] In this way, multiple column bodies can be prefabricated, aligned vertically, and then joined together. Concrete is then poured into the connection space to bind them together, forming a single prefabricated column. This process is simpler than directly casting a single, integral prefabricated column, and the surface quality of the column is more guaranteed. The aforementioned column body structure has connection spaces on all four sides, facilitating the subsequent installation of vertical reinforcement and stirrups, thus ensuring the overall quality of the final product.

[0065] The inner cylinder 2 and the outer cylinder 1 are set at the same height at both ends, making them easier to process.

[0066] Both the outer and inner cylinders have rectangular cross-sections. Rectangular columns are more widely used.

[0067] The outer cylinder 1 has at least one end with a recessed step 5 on its outer surface. This recessed step allows for the concealment of joint tolerances during assembly, ensuring the quality of the column's shape.

[0068] The height of the column body is 20-40 cm. If it is too high, it will easily lead to a decrease in the appearance quality; if it is too low, it will result in too many column bodies needing to be spliced ​​when processing the prefabricated column components, thus increasing the difficulty of splicing and processing.

[0069] In this embodiment, each end of the inner cylinder 2 extends outward in the same direction to connect to the outer cylinder and form the connecting rib 3.

[0070] This not only increases the structural strength, but also creates a space between the two connecting ribs at the corner and the outer cylinder for installing vertical reinforcing bars, facilitating their installation and positioning.

[0071] Among them, the upper end of the connecting rib 3 is provided with a horizontal stirrup installation notch 6.

[0072] This not only facilitates the installation and positioning of the transverse stirrups, but also allows the interlayer concrete to be poured through the gaps in the connection space, enabling all the pouring connection spaces to be connected as a whole, thus improving the post-pouring connection effect and the overall integrity of the final structure.

[0073] In specific implementation, the column cylinder is manufactured using a column cylinder processing and pressing mold. See [link to relevant documentation] for the column cylinder processing and pressing mold. Figures 9-10 The system includes a bottom mold for forming the lower surface of the wall post cylinder; an outer mold 21 with an overall (rectangular) frame structure for forming the circumferential outer surface of the wall post cylinder is provided above the bottom mold, and an outer mold lifting mechanism is also installed on the outside of the outer mold 21; an inner mold 22 for forming the wall post cylinder and connecting ribs is also provided inside the outer mold, and the upper or lower end of the inner mold is fixedly connected to the outer mold 21 by a horizontally provided connecting plate 23; a top mold 24 for forming the upper surface of the wall post cylinder is also provided above the inner mold 22, and the upper end of the top mold is installed on the mounting frame 25 by a top mold lifting and pressing device.

[0074] In this way, when producing the column cylinder, the outer mold and inner mold are lowered together and placed on the bottom mold. Then, concrete is poured into the inner cavity of the outer mold, and the top mold is pressed down to compact the concrete and form the wall column cylinder. Compared with the traditional method of casting after setting up the formwork, this method of casting and pressing with a fixed mold can better shorten the product hardening time, improve product processing efficiency, increase product structural strength, and facilitate the processing of wall column cylinders with complex internal cavity structures.

[0075] The bottom mold includes a drive belt 26 and a support base plate 27 located below the upper surface layer of the drive belt 26.

[0076] In this way, the drive belt remains stationary during processing, acting as the bottom mold. Its material elasticity ensures a tight seal between the bottom and outer molds. After processing, the outer and top molds move upwards, and the product is demolded onto the belt. The belt drive then pulls the product out of the processing station. This allows for more efficient assembly line production and improves overall production efficiency.

[0077] Among them, the upper inner side of the outer mold 21 is also provided with a ring of inwardly protruding steps.

[0078] This facilitates the processing of the wall post cylinders, which form a concave step at the top, making it easier to conceal the joint tolerances during assembly and ensuring the quality of the post's shape.

[0079] The upper part of the outer mold 21 extends beyond the upper part of the inner mold 22 by a certain distance. This facilitates the top mold being pressed into the outer cavity and then contacting the upper part of the inner mold, thus achieving a better pressure casting effect.

[0080] The outer mold lifting mechanism includes horizontal support arms 28 symmetrically fixed on both sides of the outer surface of the outer mold. A telescopic cylinder 29 for the outer mold is connected and installed below the horizontal support arms 28 and is fixed relative to the ground.

[0081] This makes it easier to control the lifting and lowering of the outer and inner molds.

[0082] Among them, the outer surface of the outer mold 21 is also provided with a vibration device 30.

[0083] This allows for vibration during pouring, achieving a compacting effect.

[0084] The top mold lifting and pressing device includes a top mold telescopic cylinder 31 installed and connected to the upper end of the top mold. The upper end of the top mold telescopic cylinder 31 is fixed on a gantry frame that serves as an installation bracket 25.

[0085] This makes it easy to control the lifting and lowering of the top mold.

[0086] The inner mold 22 includes a first mold core 32 with a large rectangular cross-section located in the middle, four second mold cores 33 located on the outer periphery of the first mold core with the same and aligned long side length as the first mold core, and four third mold cores 34 located on the outer periphery of the four corners of the first mold core with the same and aligned short side length as the second mold core. The connecting plate 23 connects the adjacent first mold core, second mold core, third mold core and outer inner side.

[0087] This process allows for the fabrication of a wall post cylinder with an outer cylinder, an inner cylinder forming a grid pattern, and connecting ribs. Specifically, the inner cylinder structure of the wall post cylinder is formed in the space between the first and second mold cores; the connecting ribs of the inner cylinder are formed in the space between the second and third mold cores; and the outer cylinder structure is formed between the second and third mold cores and the inner side of the outer mold. This wall post cylinder structure facilitates the fabrication of prefabricated post structures. During implementation, the connecting plate is a relatively thin (2-5 mm) metal plate, ensuring connection strength while minimizing impact on the product's shape.

[0088] The lower surface of the top mold 24 has a downward-facing arc-shaped protrusion 35 positioned between the second and third mold cores. This facilitates the formation of a transverse stirrup installation notch on the upper surface of the connecting rib in the manufactured wall column cylinder.

[0089] When using the aforementioned column cylinder processing and pressing mold to produce column cylinders, the drive belt serving as the bottom mold is first paused. The outer and inner molds are lowered together and placed on the upper surface of the belt and supported on the support base plate. Then, precast concrete of a fixed mass is poured into the inner cavity of the outer mold. The vibration device is then started to vibrate for a period of time. Next, the top mold is controlled to press down to compact the concrete and form the wall column cylinder. Then, the top mold and outer mold are controlled to move upward together with the inner mold to complete demolding. The remaining product remains on the belt, and the belt is started to carry the product out of the processing station. This cycle is repeated to achieve intermittent continuous processing. Therefore, it can greatly improve the processing efficiency and quality of column cylinders.

[0090] In specific implementation, the prefabricated column components are described in detail below. Figure 4-5 It includes multiple of the above-mentioned column cylinders, which are spliced ​​together along their length. Concrete is poured into the casting connection space of the column cylinders to fix the column cylinders together as a whole.

[0091] These prefabricated column components are easier to process, have higher production efficiency, and better appearance quality.

[0092] Among them, in the precast column components, vertical reinforcement bars 7 are cast and fixed at the four corner positions within the casting connection space 4, and horizontally rectangular reinforcement bars 8 are also set and cast and fixed at the horizontal stirrup installation notch positions of the connecting ribs of each column body.

[0093] This can better improve the structural strength of the precast column components.

[0094] In this embodiment, such as Figure 5-6As shown, the stirrup 8 is formed by four connecting bars 9 joined in pairs at a 90-degree angle. Each connecting bar 9 has a bent hook end 10 at both ends for hooking and fixing with the vertical bars. An elastic section 11 is provided in the middle of the connecting bar 9. When the elastic section 11 is not under stress, the length of the connecting bar is less than the minimum connection distance between the two vertical bars on one side (the minimum connection distance is the distance between the outer sides of the two connecting ribs on one side of the inner cylinder plus the sum of the diameters of the two vertical bars). With this stirrup structure, during construction, after the joint of a single column cylinder is completed, the four connecting bars can be directly hooked onto the vertical bars to form a stirrup, eliminating the need for top-level installation, thus making installation more convenient and faster. More importantly, after the stirrup structure is installed, each vertical bar will be subjected to the same tensile force in the connection direction of the two connecting bars. This will cause the vertical bars to be pulled tightly against the angle between the two connecting ribs at the outer end of the inner cylinder corner. Through the force exerted by the vertical bars, the connected column cylinder can be completely aligned with the lower column cylinder, thus achieving an automatic alignment installation effect. At the same time, the provided pre-tightening force ensures that the concrete poured in the connection space will not deform due to vibration or other reasons, ensuring the shape quality after pouring. Therefore, it not only improves the installation efficiency of a single column cylinder, but also better guarantees its installation quality, preventing grout leakage when pouring concrete in the connection space, and the final precast column component also has better shape quality. Furthermore, the elastic segment 11 is formed by a 360-degree curved winding part; it is more convenient to process and manufacture, and the size of its elastic force can be easily controlled by adjusting the diameter of its winding part.

[0095] Specifically, the precast column is prepared by the following steps: 1. Obtain multiple column cylinders, place one column cylinder vertically on a casting base plate, and vertically insert four vertical ribs of the same length as the precast column into the casting connection spaces at the four corners of the column cylinder; 2. Arrange four connecting ribs in the horizontal stirrup installation notches at the upper ends of the connecting ribs on the four sides of the column cylinder, and stretch and hook them onto the corresponding vertical ribs to form the stirrup structure of this layer; 3. Insert the next column cylinder directly onto the four vertical ribs, repeat step 2 to connect the stirrup structure of this layer, and make the column cylinders of this layer automatically aligned by the force of the stirrups and vertical ribs; 4. Repeat step 3 until all the column cylinders of the precast column are installed, inject concrete into the casting connection space to complete the casting, and fix all the column cylinders into one piece to obtain the precast column.

[0096] Therefore, this method makes it easier and faster to prepare the prefabricated column components and better ensures the overall quality.

[0097] In another possible implementation, the stirrup 8 is... Figure 7The standard stirrups shown are for the rectangular frame structure. They are easy to manufacture.

[0098] See Figure 8 The present invention also discloses a wall post, including a post body obtained from the above-mentioned post prefabricated parts, a top cover 12 provided at the upper end of the post body, a post foundation 13 cast below the ground surface at the lower end of the post body, and a lower post-cast section 14 cast at the lower part of the inner cavity of the post body, the lower post-cast section 14 and the post foundation 13 being cast and connected as one piece.

[0099] In this way, the column is a monolithically cast, precast hollow cylindrical column. Therefore, during on-site construction, only the foundation needs to be poured. The precast hollow column is then erected on the foundation, and the lower section is poured directly into the column's internal cavity, connecting it integrally with the foundation. Finally, the top cover is placed on top. This solution makes construction very convenient and quick, further reducing on-site construction time. Furthermore, the absence of splicing the outer surface during construction better ensures the overall quality of the column's appearance.

Claims

1. A method for constructing wall posts, comprising: pouring the foundation of the posts on the construction site; pre-casting and fixing several upward-facing connecting steel bars on the foundation; then erecting prefabricated hollow post components on the foundation and fitting them over the exposed connecting steel bars; and then casting a post-cast section in the lower inner cavity of the post-cast section, so that the post-cast section is fixedly connected to the post foundation by the connecting steel bars, characterized in that... The column prefabricated part is obtained by pouring concrete into the pouring connecting space between the column cylinders and connecting them into one body; The column cylinder comprises an outer cylinder and an inner cylinder arranged inside the outer cylinder and spaced apart, and connecting ribs are arranged between the inner cylinder and the outer cylinder to connect them into one body, and the space between the inner cylinder and the outer cylinder forms the pouring connecting space; The column cylinder is processed by using a column cylinder processing and pressing mold, and the column cylinder processing and pressing mold comprises a bottom mold for forming the lower surface of the column cylinder, an outer mold in the shape of a frame arranged above the bottom mold and used for forming the circumferential outer surface of the column cylinder, an outer mold lifting mechanism arranged outside the outer mold, an inner mold arranged inside the outer mold and used for forming the inner cylinder and the connecting ribs of the column cylinder, a connecting plate arranged horizontally and used for fixing the upper end or the lower end of the inner mold to the outer mold, and a top mold arranged above the inner mold and used for forming the upper surface of the column cylinder, wherein the upper end of the top mold is arranged on the mounting frame by using a top mold lifting and pressing device. The column prefabricated part comprises a plurality of column cylinders, and the column cylinders are connected into one body by pouring concrete into the pouring connecting space between the column cylinders. The column prefabricated part is prepared by the following steps:

1. obtaining a plurality of column cylinders, placing one column cylinder vertically on a pouring bottom plate, and inserting four vertical bars with the same length as the column prefabricated part into the pouring connecting space at the four corner positions of the column cylinder; 2. arranging four connecting bars in the transverse hoop bar mounting gap at the upper end of the connecting rib at the four edge positions of the column cylinder, and stretching and hanging the two ends of the connecting bars on the corresponding vertical bars to form the hoop bar structure of the layer; 3. inserting the next column cylinder into the four vertical bars opposite the installed column cylinder, repeating step 2 to connect the hoop bar structure of the layer, and automatically aligning the column cylinder of the layer by the stress of the hoop bar and the vertical bar; 4. repeating step 3 until all the column cylinders of the column prefabricated part are installed, pouring concrete into the pouring connecting space to complete pouring and connect all the column cylinders into one body to obtain the column prefabricated part.

2. The fence post construction method according to claim 1, wherein The two ends of the inner cylinder and the outer cylinder are arranged in the same height. The cross sections of the outer cylinder and the inner cylinder are both rectangular structures. At least one end of the outer surface of the outer cylinder has a concave step. The height of the column cylinder is 20-40 cm.

3. The fence post construction method of claim 1, wherein Each edge of the inner cylinder is connected to the outer cylinder at both ends and forms the connecting rib. The upper end of the connecting rib is provided with a transverse hoop bar mounting gap.

4. The fence post construction method of claim 1, wherein The bottom mold comprises a transmission belt and a supporting bottom plate arranged below the upper surface layer of the transmission belt. The inner side of the outer mold is provided with a concave step at the upper end. The upper end of the outer mold is higher than the upper end of the inner mold by a distance. The outer mold lifting mechanism comprises transverse supporting arms fixed symmetrically on both sides of the outer surface of the outer mold, and an outer mold telescopic cylinder connected and installed below the transverse supporting arms, which is fixed relative to the ground. The outer surface of the outer mold is further provided with a vibrating device. The top mold lifting and pressing device comprises a top mold telescopic cylinder installed and connected on the upper end of the top mold, and the upper end of the top mold telescopic cylinder is fixed on a gantry as a mounting frame.

5. The fence post construction method according to claim 4, wherein The inner mold comprises a first mold core in the middle with a larger rectangular cross section, four second mold cores on the outer side of the four corners of the first mold core with the same length as the long side of the first mold core and aligned, and four third mold cores on the outer side of the four corners of the first mold core with the same length as the short side of the second mold core and aligned, and the adjacent first mold core, second mold core, third mold core and inner side edge are connected by the connecting plate. The lower surface of the top mold is provided with a downward arc-shaped protrusion corresponding to the position between the second mold core and the third mold core.

6. The fence post construction method according to claim 4, wherein When the column cylinder is processed by the column cylinder processing and pressing mold, the driving belt as the bottom mold is first paused, the outer mold and the inner mold are placed together on the upper surface of the belt and supported on the supporting bottom plate, then the prefabricated concrete with fixed mass is poured in the inner cavity of the outer mold, then the vibrating device is started to vibrate for a period of time, then the top mold is controlled to press down to compact the concrete and press and form the enclosing wall column cylinder, then the top mold and the outer mold are controlled to move upwards together to complete demolding, the remaining product is left on the belt, and the belt is started to take out the product from the processing station; the intermittent continuous processing is realized by the cycle.

7. The fence post construction method of claim 1, wherein The stirrup is formed by four connecting bars connected in pairs at 90 degrees, each end of each connecting bar is provided with a curved hanging end for hanging and fixing with the vertical bar, and an elastic section is arranged in the middle of the connecting bar, and the length of the connecting bar in the unstressed state of the elastic section is less than the minimum connecting distance between the two vertical bars on one side.

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