Prefabricated column with anti-settling performance

Abstract

The utility model relates to the technical field of building structure engineering, and discloses an anti-settling prefabricated column which comprises a prefabricated column body and an anti-settling top block, the anti-settling top block is arranged at the top end of the prefabricated column body, the height of the anti-settling top block is smaller than the length of the prefabricated column body, and the plane sectional area of the anti-settling top block is larger than that of the prefabricated column body. The center point of the anti-sinking top block is located on the center extension line of the prefabricated column body. The effect of improving the anti-settling performance of the prefabricated column is achieved.

Description

Technical Field

[0001] This application relates to the field of building structural engineering technology, and in particular to a precast column with anti-settlement properties. Background Technology

[0002] In the field of civil engineering, precast columns are extremely important foundation components, and their development is of great significance to the construction industry. With the continuous progress of society, the number of large and high-rise buildings is constantly increasing, and people are paying more and more attention to the safety and stability of buildings. As a key component supporting the weight of a building, the performance of precast columns directly affects the overall quality and service life of the building. Good precast columns can ensure that buildings remain stable even in complex environments, reduce construction accidents caused by foundation problems, and promote the construction industry towards a safer and more reliable direction. In many projects such as urban construction and industrial plant construction, the proper application of precast columns is an important factor in ensuring the smooth progress of the project.

[0003] Chinese Patent No. CN222412959U discloses a precast pile with a support structure, including a precast pile body, a connecting rod, a steel sleeve, a support vertical rod, a rib plate, a rib plate connecting base, and an installation sleeve. The lower end of the precast pile body is buried underground, a steel sleeve is set in the middle, and an installation sleeve is set at the upper end. The lower end of the installation sleeve is cast together with the upper end of the precast pile body, and a connecting rod is set on the top surface. The lower end of the connecting rod is connected to the installation sleeve, and the upper end is installed with the support vertical rod. The inner side of the steel sleeve is cast together with the middle of the precast pile body, and a rib plate connecting base is set on the outer side. One end of the rib plate is connected to the rib plate connecting base, and the other end is connected to the support vertical rod.

[0004] The aforementioned precast pile structure has significant defects when dealing with soft foundations. Due to the high compressibility and low bearing capacity of soft soil layers, foundation settlement will cause an imbalance in stress transmission between the precast pile body and the surrounding soil. The rigid support structure composed of steel sleeves and ribs alone is difficult to effectively disperse the horizontal shear force and vertical displacement generated by foundation settlement, which can easily lead to the overall displacement or tilting of the precast pile, resulting in damage to the superstructure and posing a serious safety hazard. Utility Model Content

[0005] To improve the settlement resistance of precast columns, this application provides a precast column with settlement resistance.

[0006] The precast column with anti-settlement performance provided in this application adopts the following technical solution:

[0007] A precast column with anti-settlement performance includes a precast column body and an anti-settlement top block. The anti-settlement top block is disposed at the top of the precast column body. The height of the anti-settlement top block is less than the length of the precast column body. The cross-sectional area of ​​the anti-settlement top block is greater than the cross-sectional area of ​​the precast column body. The center point of the anti-settlement top block is located on the center extension line of the precast column body.

[0008] By adopting the above technical solution, the anti-settlement cap block located at the top of the precast column body, because its height is less than the length of the precast column body, makes the overall structure more stable and reasonable, reducing the risk of instability caused by excessively high anti-settlement cap blocks. Furthermore, because its cross-sectional area is larger than that of the precast column body, it increases the contact area with the foundation, strengthens the compression of the foundation, and better resists settlement. At the same time, the center point of the anti-settlement cap block is located on the extended center line of the precast column body, ensuring uniform stress on the precast column structure during piling, further improving its anti-settlement performance. Under the nail-shaped precast column structure, the anti-settlement cap block compresses the nearby foundation, weakening shallow ground settlement, effectively dispersing the horizontal shear force and vertical displacement caused by foundation settlement, reducing the risk of overall displacement or tilting of the precast column, improving the precast column's load-bearing capacity for the superstructure, and enhancing its anti-settlement performance.

[0009] Optionally, the precast column body and the anti-settlement top block are separately provided. The top of the precast column body is provided with a positioning groove, and the bottom of the anti-settlement top block is provided with a positioning cylinder. The positioning cylinder is inserted into the positioning groove and is engaged with the positioning groove. A fixing component is also provided between the positioning cylinder and the inner wall of the positioning groove.

[0010] By adopting the above technical solution, the precast column body and the anti-settlement top block are set separately, so that the precast column body and the anti-settlement top block can be manufactured and transported separately, reducing transportation difficulty and cost. At the same time, through the insertion and cooperation of positioning grooves and positioning cylinders and the setting of fasteners, the two are stably connected, which facilitates rapid on-site assembly and effectively improves the assembly efficiency of precast columns.

[0011] Optionally, a movable opening is provided on the side wall near its bottom end of the positioning cylinder. The fixing member includes a metal sheet and a fixing protrusion provided on the metal sheet. The top end of the metal sheet is connected to the top wall of the movable opening, and its bottom end is bent towards the inside of the positioning cylinder. The fixing protrusion is provided on the side wall of the metal sheet facing the positioning groove, and an insertion groove is provided on the inner side wall of the positioning groove. The insertion groove and the fixing protrusion are inserted into each other. A pressing member is provided inside the positioning cylinder to push the bottom end of the metal sheet towards the insertion groove, so that the fixing protrusion is inserted into the insertion groove.

[0012] By adopting the above technical solution, during the assembly of precast columns, the positioning cylinder is inserted into the positioning groove, and then the bottom end of the metal plate is pushed towards the insertion groove inside the positioning cylinder using a pressing component, so that the fixing protrusion is inserted into the insertion groove, achieving a stable connection between the precast column body and the anti-settlement block. This connection method is not only convenient and quick, but also enhances the connection strength between the precast column body and the anti-settlement block, effectively improving the anti-settlement performance of the precast column.

[0013] Optionally, the pressing component is a fixing rod that is inserted into both the through hole and the positioning cylinder. The anti-sinking block has a through hole that runs vertically through it. The fixing rod and the through hole of the anti-sinking block are interference-fitted. When the top wall of the fixing rod is flush with the top surface of the anti-sinking block, the side wall of the fixing rod pushes the fixing protrusion into the insertion groove.

[0014] By adopting the above technical solution, after the anti-settlement top block is connected to the precast column body, the fixing rod is inserted into the anti-settlement top block from the through hole by external force until the fixing rod is inserted into the through hole and positioning cylinder of the anti-settlement top block. When the top wall of the fixing rod is flush with the top surface of the anti-settlement top block, the side wall of the fixing rod pushes the fixing protrusion into the insertion groove, so as to achieve a more stable connection between the anti-settlement top block and the precast column body and enhance the integrity of the two.

[0015] Optionally, the positioning cylinder is polygonal, and each side wall of the positioning cylinder has a movable opening. Each movable opening has a set of fixing members. The insertion slots on the inner side wall of the positioning groove correspond one-to-one with the fixing protrusions.

[0016] By adopting the above technical solution, the polygonal positioning cylinder and multiple sets of corresponding movable openings, fasteners and insertion slots enable the precast column body and the anti-sinking top block to be fixed in multiple directions, further enhancing the stability of the connection between the two.

[0017] Optionally, the bottom of the anti-sinking block is fitted with a protective frame that matches the cross-sectional area of ​​the precast column body. The height of the protective frame is greater than the height of the positioning cylinder. The top of the precast column body is inserted into the protective frame and is engaged with it.

[0018] By adopting the above technical solution, the protective frame enables the precast column body and the anti-settlement block to be connected before the positioning cylinder is inserted into the positioning groove. This reduces the possibility of deformation of the positioning cylinder due to accidental contact, thereby improving the accuracy of the subsequent connection between the fixing protrusion and the insertion groove, enhancing the stability of the connection between the precast column body and the anti-settlement block, and further improving the overall anti-settlement performance of the precast column.

[0019] Optionally, the pressing component includes a threaded part and a tensioning part that are coaxially rotatably connected. The cross-sectional area of ​​the threaded part is larger than that of the tensioning part, and the height of the threaded part matches the height of the through hole. The inner sidewall of the through hole is provided with threads. The threaded part is rotatably connected to the through hole through the threads, and the tensioning part is inserted into the inner cavity of the positioning cylinder.

[0020] By adopting the above technical solution, the rotation is achieved by the threaded connection between the threaded part and the through hole, which drives the tensioning part to move in the positioning cylinder, thereby stably pushing the bottom end of the metal sheet towards the insertion groove, so that the fixing protrusion is accurately inserted into the insertion groove, completing the firm connection between the precast column body and the anti-settlement block, improving the reliability and stability of the connection between the two, and helping to improve the overall anti-settlement performance of the precast column.

[0021] Optionally, a concealed handle is provided at the top of the threaded portion.

[0022] By adopting the above technical solution, it is convenient for operators to rotate the threaded part of the pressing part, so that the threaded part can smoothly rotate and connect with the through hole through the thread, thereby realizing the fixing of the fixing protrusion into the insertion groove, completing the fixing operation of the precast column body and the anti-sinking block. At the same time, the setting of the concealed handle also helps.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The anti-settlement capping block located at the top of the precast column, because its height is less than the length of the precast column, makes the overall structure more stable and reasonable, reducing the risk of instability caused by excessive height of the anti-settlement capping block; and because its cross-sectional area is larger than that of the precast column, it can increase the contact area with the foundation, strengthen the compression of the foundation, and better resist settlement. At the same time, the center point of the anti-settlement capping block is located on the extension line of the center of the precast column, so that the precast column structure is subjected to uniform stress during piling, further improving the anti-settlement performance. Under the structure of the nail-shaped precast column, the anti-settlement capping block compresses the nearby foundation, weakens the settlement of shallow strata, effectively disperses the horizontal shear force and vertical displacement caused by foundation settlement, reduces the risk of overall displacement or tilting of the precast column, improves the bearing capacity of the precast column for the superstructure, and enhances the anti-settlement performance;

[0025] 2. The precast column body and the anti-settlement top block are set separately, so that the precast column body and the anti-settlement top block can be manufactured and transported separately, reducing transportation difficulty and cost. At the same time, through the plug-in cooperation of positioning groove and positioning cylinder and the setting of fasteners, the two are stably connected, which facilitates rapid on-site assembly and effectively improves the assembly efficiency of precast columns.

[0026] 3. When assembling the precast column, insert the positioning cylinder into the positioning slot, and then use the pressing component to push the bottom end of the metal plate towards the insertion slot inside the positioning cylinder, so that the fixing protrusion is inserted into the insertion slot, realizing a stable connection between the precast column body and the anti-settlement block. This connection method is not only convenient and quick, but also enhances the connection strength between the precast column body and the anti-settlement block, effectively improving the anti-settlement performance of the precast column. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0028] Figure 2 This is a cross-sectional view illustrating the connection between the precast column body and the anti-sinking top block in Embodiment 1 of this application.

[0029] Figure 3 This is a schematic diagram illustrating the positional relationship between the anti-sinking block, the positioning cylinder, and the metal sheet in Embodiment 1 of this application.

[0030] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application.

[0031] Figure 5 This is a cross-sectional view illustrating the connection between the precast column body and the anti-sinking top block in Embodiment 2 of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Precast column body; 11. Positioning groove; 111. Insertion groove; 2. Anti-sinking block; 21. Through hole; 3. Protective frame; 4. Positioning cylinder; 41. Movable opening; 5. Fastener; 51. Metal sheet; 52. Fixing protrusion; 6. Pressing part; 61. Fixing rod; 62. Threaded part; 63. Tensioning part; 7. Concealed handle. Detailed Implementation

[0034] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0035] This application discloses a precast column with anti-settlement properties.

[0036] Example 1

[0037] Reference Figure 1 A precast column with anti-settlement performance includes a precast column body 1 and an anti-settlement top block 2. The precast column body 1 and the anti-settlement top block 2 are manufactured and transported separately and delivered to the construction site for assembly and use.

[0038] Reference Figure 1The precast column body 1 is the main supporting part of the entire precast column. It is made of reinforced concrete and has high strength and stability. The shape of the precast column body 1 is generally cylindrical or square. This embodiment takes a square shape as an example. The internal steel bars can enhance the compressive and bending resistance of the precast column body 1.

[0039] Reference Figure 1 The assembled anti-settlement block 2 is located at the top of the precast column body 1. The anti-settlement block 2 is also square-shaped and made of high-strength concrete. The cross-sectional area of ​​the anti-settlement block 2 is larger than that of the precast column body 1, meaning it can contact a larger area of ​​the foundation, thus better distributing pressure. The height of the anti-settlement block 2 is less than the length of the precast column body 1, and the center point of the anti-settlement block 2 is located on the extended center line of the precast column body 1, ensuring the stability of the entire precast column's center of gravity.

[0040] Reference Figure 1 and Figure 2 The bottom of the anti-settlement block 2 is cast and fixed with a protective frame 3 in accordance with the cross-sectional area of ​​the precast column body 1. The top of the precast column body 1 is inserted into the protective frame 3 and is inserted and matched with the protective frame 3 to achieve the initial docking of the precast column body 1 and the anti-settlement block 2.

[0041] Reference Figure 2 and Figure 3 A positioning cylinder 4 is cast and fixed at the bottom of the anti-sinking block 2. The positioning cylinder 4 can be circular or square; in this embodiment, a square cylinder is used as an example. The positioning cylinder 4 is made of metal and has high strength and toughness. The positioning cylinder 4 is located within the enclosure of the protective frame 3, and the height of the positioning cylinder 4 is lower than the height of the protective frame 3. A positioning groove 11 is provided at the top of the precast column body 1. The positioning cylinder 4 and the positioning groove 11 are inserted and matched to achieve a second positioning of the anti-sinking block 2. A fixing member 5 is provided between the positioning cylinder 4 and the inner wall of the positioning groove 11.

[0042] Reference Figure 2 and Figure 3 The fixing component 5 includes a metal sheet 51 and a fixing protrusion 52. Each side wall of the positioning cylinder 4 near its bottom has a movable opening 41, and the fixing component 5 is provided at each movable opening 41. The metal sheet 51 is made of the same material as the positioning cylinder 4, and its top end is integrally formed on the top wall of the movable opening 41, while its bottom end is bent inwards towards the positioning cylinder 4 in its natural state. The fixing protrusion 52 is welded to the side wall of the metal sheet 51 facing the positioning groove 11. A insertion groove 111 is provided on the inner side wall of the positioning groove 11 corresponding to each fixing protrusion 52. The insertion groove 111 corresponds one-to-one with the fixing protrusion 52 and is inserted into it. When the fixing protrusion 52 is inserted into the insertion groove 111, the positioning cylinder 4 and the positioning groove 11 are firmly connected together, thereby achieving a stable connection between the precast column body 1 and the anti-sinking block 2.

[0043] Reference Figure 2 The positioning cylinder 4 is provided with a pressing member 6 for pushing the bottom end of the metal sheet 51 toward the insertion groove 111. In this embodiment, the pressing member 6 is a fixing rod 61 that is inserted into the through hole 21 and the positioning cylinder 4. The anti-sinking block 2 is fitted with the fixing rod 61 and has a through hole 21 that runs vertically through it. The fixing rod 61 and the through hole 21 of the anti-sinking block 2 are interference-fitted.

[0044] Reference Figure 2 When the top wall of the fixing rod 61 is hammered until it is flush with the top surface of the anti-settlement block 2, the side wall of the fixing rod 61 pushes the fixing protrusion 52 into the insertion groove 111. This method of pressing down the fixing rod 61 makes the interference connection between the fixing rod 61, the anti-settlement block 2, and the positioning cylinder 4 simple and convenient, and can quickly and effectively achieve the fixed connection between the anti-settlement block 2 and the precast column body 1.

[0045] The implementation principle of a precast column with anti-settlement performance according to an embodiment of this application is as follows: The precast column body 1 and the anti-settlement top block 2, which are manufactured separately, are assembled. During the assembly process, the protective frame 3 of the anti-settlement top block 2 is first aligned with the top of the precast column body 1 and inserted, allowing the positioning cylinder 4 to be accurately inserted into the positioning groove 11 for initial positioning. Subsequently, the fixing rod 61 is inserted into the through hole 21, and the top wall of the fixing rod 61 is hammered until it is flush with the top surface of the anti-settlement top block 2. At this time, the side wall of the fixing rod 61 pushes the fixing protrusion 52 into the insertion groove 111, forming a firm mechanical lock, thus achieving a reliable connection between the anti-settlement top block 2 and the precast column body 1.

[0046] This structural design utilizes the large cross-sectional area of ​​the anti-settlement cap 2 in contact with the foundation, effectively dispersing the pressure generated by the superstructure load and significantly reducing the stress on the foundation per unit area. This effectively reduces the possibility of displacement of the precast column due to natural foundation settlement. At the same time, the squeezing effect of the anti-settlement cap 2 on the surrounding foundation can effectively compact the shallow strata, further weakening the impact of settlement and significantly improving the load-bearing capacity and stability of the precast column for the superstructure.

[0047] Example 2

[0048] Reference Figure 4 and Figure 5The difference between this embodiment and Embodiment 1 lies in the structure of the pressing member 6. In this embodiment, the pressing member 6 includes a threaded portion 62 and a tensioning portion 63. The threaded portion 62 is located above the tensioning portion 63, is cylindrical, and is coaxially rotatably connected to the tensioning portion 63. A concealed handle 7 is also fixedly provided at the top of the threaded portion 62. The cross-sectional area of ​​the threaded portion 62 is larger than that of the tensioning portion 63, and the through hole 21 is circularly arranged to match the threaded portion 62. The height of the threaded portion 62 matches the height of the through hole 21, and the inner sidewall of the through hole 21 is threaded. The threaded portion 62 is rotatably connected to the through hole 21 through the thread, while the tensioning portion 63 is inserted into the inner cavity of the positioning cylinder 4.

[0049] The implementation principle of Example 2 is as follows: The concealed handle 7, through the threaded engagement of the threaded portion 62 and the through hole 21, achieves precise control of the pressing component 6. The operation of rotating the threaded portion 62 is more labor-saving and stable. This design of the pressing component 6 also effectively fixes the anti-settlement block 2 to the precast column body 1, improving the anti-settlement performance of the precast column. Furthermore, it offers advantages in terms of operational convenience and aesthetics, providing more options for the installation and use of precast columns, and further improving and perfecting existing technologies.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precast column with anti-settlement properties, characterized in that, It includes a precast column body (1) and an anti-settlement top block (2). The anti-settlement top block (2) is set at the top of the precast column body (1). The height of the anti-settlement top block (2) is less than the length of the precast column body (1). The cross-sectional area of ​​the anti-settlement top block (2) is greater than the cross-sectional area of ​​the precast column body (1). The center point of the anti-settlement top block (2) is located on the center extension line of the precast column body (1).

2. A precast column with anti-settlement properties according to claim 1, characterized in that, The precast column body (1) and the anti-settlement top block (2) are separately arranged. The top of the precast column body (1) is provided with a positioning groove (11), and the bottom of the anti-settlement top block (2) is provided with a positioning cylinder (4). The positioning cylinder (4) is inserted into the positioning groove (11) and is engaged with the positioning groove (11). A fixing member (5) is also provided between the positioning cylinder (4) and the inner side wall of the positioning groove (11).

3. A precast column with anti-settlement performance according to claim 2, characterized in that, The positioning cylinder (4) has a movable opening (41) on its side wall near its bottom end. The fixing member (5) includes a metal sheet (51) and a fixing protrusion (52) on the metal sheet (51). The top end of the metal sheet (51) is connected to the top wall of the movable opening (41), and its bottom end is bent towards the inside of the positioning cylinder (4). The fixing protrusion (52) is set on the side wall of the metal sheet (51) facing the positioning groove (11), and an insertion groove (111) is opened on the inner side wall of the positioning groove (11). The insertion groove (111) and the fixing protrusion (52) are inserted into each other. A pressing member (6) is provided inside the positioning cylinder (4) to push the bottom end of the metal sheet (51) towards the insertion groove (111), so that the fixing protrusion (52) is inserted into the insertion groove (111).

4. A precast column with anti-settlement performance according to claim 3, characterized in that, The pressing member (6) is a fixing rod (61) that is inserted into the through hole (21) and the positioning cylinder (4). The fixing rod (61) is fitted with a through hole (21) that runs vertically through the anti-sinking block (2). The fixing rod (61) and the through hole (21) of the anti-sinking block (2) are interference fit. When the top wall of the fixing rod (61) is flush with the top surface of the anti-sinking block (2), the side wall of the fixing rod (61) pushes the fixing protrusion (52) into the insertion groove (111).

5. A precast column with anti-settlement performance according to claim 3, characterized in that, The positioning cylinder (4) is polygonal in shape. The movable opening (41) is provided on each side wall of the positioning cylinder (4). The fixing member (5) is provided in a set for each movable opening (41). The insertion groove (111) on the inner side wall of the positioning groove (11) corresponds one-to-one with the fixing protrusion (52).

6. A precast column with anti-settlement properties according to claim 2, characterized in that, The bottom of the anti-sinking top block (2) is fitted with a protective frame (3) that is in line with the cross-sectional area of ​​the precast column body (1). The height of the protective frame (3) is greater than the height of the positioning cylinder (4). The top of the precast column body (1) is inserted into the protective frame (3) and is inserted into the protective frame (3).

7. A precast column with anti-settlement performance according to claim 3, characterized in that, The pressing component (6) includes a threaded part (62) and a tensioning part (63) that are coaxially rotatably connected. The cross-sectional area of ​​the threaded part (62) is larger than that of the tensioning part (63), and the height of the threaded part (62) matches the height of the through hole (21). The inner sidewall of the through hole (21) is provided with threads. The threaded part (62) is rotatably connected to the through hole (21) through the threads. The tensioning part (63) is inserted into the cavity of the positioning cylinder (4).

8. A precast column with anti-settlement properties according to claim 7, characterized in that, The top of the threaded portion (62) is provided with a concealed handle (7).

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