An assembly and reusable traffic pole base and method of assembly thereof

Abstract

This invention relates to the field of traffic pole foundation technology, and in particular to an assemblable and reusable traffic pole foundation and its assembly method. The invention includes two sets of first cross-pre-tensioning assemblies, each corresponding to a specific foundation main module and disposed between two columns within that module; two sets of second cross-pre-tensioning assemblies, disposed on the left and right sides between two foundation main modules; and a column base mounting assembly disposed between two horizontal plates and the pole column bases for detachably mounting the pole column bases onto the two horizontal plates. The purpose of this device is to solve the problem that existing modular pole foundations cannot withstand external impacts through internal pre-tensioning.

Description

Technical Field

[0001] This invention relates to the field of traffic pole foundation technology, and in particular to an assemblable and reusable traffic pole foundation and its assembly method. Background Technology

[0002] Traffic sign pole structures primarily bear wind loads. In coastal areas and other regions with high wind loads, some foundations are extremely large to meet the stability and safety requirements of traffic sign pole foundations. While large-volume foundations offer sufficient safety, their economic efficiency and rationality are questionable. Currently available multi-module combined splicing pole foundations, although economical, present the following problems in use: 1. Existing modular splicing pole foundations lack internal cross-pre-tightening structures, making the connection nodes between modules prone to loosening and displacement when facing strong winds in coastal areas. The overall structure has insufficient resistance to lateral displacement and overturning, making it difficult to withstand the alternating impact and lateral thrust brought by strong wind loads. Especially under extreme wind conditions such as typhoons and strong gusts, stress concentration is prone to occur at the splicing points of multi-module foundations. After long-term stress, problems such as module misalignment and connection failure may occur. In severe cases, it may cause traffic poles to tilt and collapse, making it impossible to ensure the stable operation of traffic pole structures.

[0003] 2. Existing modular composite foundations often employ solid modules for stability. While solid modules can improve structural stiffness to some extent, they significantly increase the module's weight. This not only increases material consumption and manufacturing costs during prefabrication but also greatly increases the contact area between the foundation and wind loads. This results in significantly increased wind resistance under strong winds, further exacerbating the impact of wind loads on the foundation structure. Especially under extreme wind conditions such as coastal typhoons and strong gusts, the larger wind contact area subjects the foundation to greater lateral thrust and alternating wind loads. This not only increases the stress on foundation connection nodes, significantly increasing the probability of node loosening and displacement but also further weakens the foundation's overall resistance to lateral displacement and overturning. This makes the foundation structure more prone to stress concentration, module misalignment, and even poses safety hazards such as tilting and collapse of traffic poles. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide an assemblable and reusable traffic pole foundation and its assembly method, thereby resolving the issue that existing modular splicing pole foundations cannot withstand external impacts through internal pre-tightening.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An assemblable and reusable traffic pole foundation includes a foundation base plate installed in a horizontal foundation, a pair of foundation main modules arranged in a mirror-symmetrical manner along the front and rear directions and detachably installed on the front and rear sides of the foundation base plate, and pole column feet installed above the foundation main modules and detachably connected to the foundation main modules. Each basic main module includes a pair of detachable columns located on the left and right ends of the corresponding sides of the foundation plate, two transition steel plates fixed to the bottom of the corresponding columns and detachably connected to the foundation plate, and a horizontal plate fixed between the upper ends of the two columns. It also includes two sets of first cross pretensioning components that correspond one-to-one with each basic main body module and are respectively set between two columns in the corresponding basic main body module; two sets of second cross pretensioning components that are respectively set on the left and right sides between two basic main body modules; and a column base mounting component set between two horizontal plates and the column base of the member and used to detachably install the column base of the member on the two horizontal plates. Each group of first cross pre-tightening components includes two first upper pre-embedded anchor bars that are pre-embedded and fixed on the upper end of the two side columns near the middle section of the corresponding horizontal plate, corresponding to each column; two first node ear plates that are welded to the lower end of the two side columns near the horizontal plate, corresponding to each column; two first tie rods that are pre-embedded and intersected with each first upper pre-embedded anchor bar and whose upper ends are detachably hooked onto the corresponding first upper pre-embedded anchor bars; and two first turnbuckles that are pre-embedded and intersected with each first tie rod and whose upper ends are detachably hooked to the lower end of the corresponding first tie rod. The lower end of each of the first turnbuckles is detachably hooked to the first node ear plate coaxial with the extension line of the corresponding first tie rod. The lower end of each of the first upper pre-embedded anchor bars is embedded in the corresponding column. The upper end of each of the first upper pre-embedded anchor bars is embedded in the horizontal plate. The lower end of each of the first node ear plates is welded to the corresponding transition steel plate. Each group of the second cross pretensioning components is respectively set between the corresponding columns on the same side of the two basic main modules. Each group of the second cross pretensioning components includes two second upper pre-embedded anchor bars that correspond one-to-one with each column and are respectively embedded on the upper end of the corresponding column near the opposite side column; two second node ear plates that correspond one-to-one with each column and are respectively welded to the lower end of the corresponding column near the outer wall of the other column; two second tie rods that correspond one-to-one with each second upper pre-embedded anchor bars and are cross-arranged with each other, and whose upper ends are respectively detachably hooked onto the corresponding second upper pre-embedded anchor bars; and two second turnbuckles that correspond one-to-one with each second tie rod and whose upper ends are detachably hooked to the lower end of the corresponding side second tie rod. The lower end of each of the second turnbuckles is detachably hooked to the second node ear plate coaxial with the extension line of the corresponding second tie rod. The lower end of each of the second upper pre-embedded anchor bars is embedded inside the corresponding column. The upper end of each of the second upper pre-embedded anchor bars is embedded inside the horizontal plate. The lower end of each of the second node ear plates is welded to the corresponding transition steel plate.

[0006] More preferably, each of the horizontal plates is provided with a number of vertical anchor bolts arranged at intervals along the circumference, and the upper and lower ends of each of the vertical anchor bolts are respectively set through the upper and lower sides of the corresponding horizontal plate. Each column base mounting assembly includes an anchor plate installed below two horizontal plates, a pad welded to the lower end of the column base, multiple lower mounting holes corresponding to each vertical anchor bolt and extending through the anchor plate along the thickness direction, multiple upper mounting holes corresponding to each vertical anchor bolt and extending through the pad along the thickness direction, multiple upper anchor nuts corresponding to each vertical anchor bolt and threadedly connected to the upper end of the corresponding vertical anchor bolt, and multiple lower anchor nuts corresponding to each vertical anchor bolt and threadedly connected to the lower end of the corresponding vertical anchor bolt.

[0007] More preferably, each of the columns is provided with vertical reinforcing bars extending along its length, and each of the columns is provided with a number of transverse stirrups that are tied and fixed to the outside of the vertical reinforcing bars at intervals along its length. Each of the horizontal plates is provided with transverse reinforcing bars extending along its length, and each of the horizontal plates is provided with a number of vertical stirrups that are tied and fixed to the outside of the transverse reinforcing bars at intervals along its length.

[0008] More preferably, bolt groups are embedded in the foundation base plate at each transition steel plate location; Each bolt group includes four anchor bolts that correspond one-to-one with the four corners of the corresponding transition steel plate and protrude from the transition steel plate at their upper ends. The lower ends of each anchor bolt are embedded in the foundation base plate, and the upper ends of each anchor bolt are threaded with anchor connection nuts.

[0009] More preferably, each of the anchor bolts is threaded with a leveling nut, and each of the leveling nuts is located below the corresponding transition steel plate.

[0010] More preferably, each of the anchor bolts is an anchor plate type anchor bolt.

[0011] An assembly method for an assemblable and reusable traffic pole foundation according to any one of claims 1 to 6 includes the following steps: S1, hoisting the foundation base plate into the excavated foundation and installing leveling nuts on each anchor bolt on the foundation base plate; S2. Hoist the two foundation main modules and position the reserved holes at the four corners of the transition steel plate to the corresponding anchor bolts of the foundation base plate. Then slowly lower them so that the lower side of each transition steel plate abuts against the upper end of the corresponding leveling nut. Then connect the foundation base plate and the foundation main module into a whole by installing the anchor connecting nut on the upper end of the anchor bolt. S3. Adjust the height of the two foundation main modules by adjusting the leveling nuts so that the top plate of the foundation main module is level. Then, use early strength mortar to fill the gap between the leveling nuts between the transition steel plate and the foundation bottom plate, and then tighten the anchor connecting nuts. S4. Hook and connect the upper end of each first tie rod to the corresponding first pre-embedded anchor bar, hook and assemble the lower end of the first tie rod with the upper end of the first turnbuckle, and then hook and connect the lower end of the first turnbuckle to the first node ear plate at the lower end of the column located on the opposite side of the upper end connection end of the corresponding first tie rod. Complete the assembly of all the first cross pre-tightening components between the two columns inside the two sets of foundation main modules, rotate and tighten the first turnbuckle to realize the cross tie pre-tightening between the two columns of the same foundation main module. S5. Hook the upper end of the second tie rod onto the corresponding second pre-embedded anchor bar, connect the lower end of the second tie rod to the upper end of the second turnbuckle, hook the lower end of the second turnbuckle onto the second node ear plate on the corresponding side column of the upper end connection of the second tie rod, and then complete the cross tie and overall pre-tightening constraint between the same side columns of the two sets of foundation main modules by adjusting the extension stroke of the second turnbuckle. S6. Place the anchor plate on the outside of the vertical anchor bolt below the horizontal plate, so that the vertical anchor bolt passes through the lower mounting hole of the anchor plate. Install and tighten the lower anchor nut. Place the pad at the bottom of the column foot above the horizontal plate, so that the upper end of the vertical anchor bolt passes through the upper mounting hole of the pad. Install the upper anchor nut on the upper end of the vertical anchor bolt to complete the detachable and fixed installation of the column foot and the two horizontal plates.

[0012] The present invention has the following beneficial effects: 1. This invention uses cross-bracing rods and turnbuckles to form a two-way pre-tightening tie structure, which can provide two-way constraints on the internal columns of a single foundation module and between two foundation modules, effectively improving the overall integrity and synergistic load-bearing capacity of the structure. It can effectively resist alternating wind loads and lateral impact forces such as strong winds and typhoons in coastal areas, avoid loosening, misalignment and displacement of module splicing nodes, and significantly improve the lateral displacement and overturning resistance of traffic pole foundations, solving the problems of weak wind resistance and easy failure of traditional spliced ​​foundations; 2. This invention adopts a frame structure with columns and horizontal plates, which effectively reduces the windward area and wind resistance load compared to traditional solid large-block foundations, thereby reducing the continuous effect of wind load on the foundation from the source. 3. This invention utilizes the convenient adjustment advantage of turnbuckles, allowing operators to steplessly adjust the preload tension according to the actual site conditions during assembly.

[0013] 4. In this invention, the foundation plate, foundation main module, column base, first tie rod, and second tie rod are all designed to be detachable using bolts, anchors, turnbuckles, and hook rings. This makes assembly convenient, construction efficiency high, and eliminates the need for large-scale on-site pouring. Furthermore, the modules can be quickly disassembled, separated, and transported according to traffic modifications or relocation requirements. Each module is structurally undamaged and can be reused, significantly reducing construction costs. Attached Figure Description

[0014] Figure 1 This is an overall axonometric view of the present invention; Figure 2 This is a magnified view of part A of the present invention; Figure 3 This is a magnified view of part B of the present invention; Figure 4 This is a magnified view of part C of the present invention; Figure 5 This is an isolated axonometric view of a single basic main body module according to the present invention; Figure 6 This is a cross-sectional view of the isolated internal structure of a single basic main module according to the present invention; Figure 7 This is an isolated exploded view of a column base mounting assembly according to the present invention.

[0015] Explanation of reference numerals in the attached figures: 1. Foundation base plate; 2. Foundation main module; 21. Column; 22. Transition steel plate; 23. Horizontal plate; 3. Column base; 4. First cross pre-tightening assembly; 41. First upper embedded anchor bar; 42. First node ear plate; 43. First tie rod; 44. First turnbuckle; 5. Second cross pre-tightening assembly; 51. Second upper embedded anchor bar; 52. Second node ear plate; 53. Second tie rod; 54. Second turnbuckle; 6. Column base installation assembly; 61. Anchor plate; 62. Pad plate; 63. Lower mounting hole; 64. Upper mounting hole; 65. Upper anchor nut; 66. Lower anchor nut; 7. Vertical anchor bolt; 8. Vertical reinforcing steel bar; 9. Horizontal stirrup; 10. Horizontal reinforcing steel bar; 11. Vertical stirrup; 12. Anchor bolt; 13. Anchor connecting nut; 14. Leveling nut. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the assemblable and reusable traffic pole foundation of this embodiment includes a foundation base plate 1 installed in a horizontal foundation, a pair of foundation main modules 2 arranged in a mirror symmetrical manner along the front and rear directions and respectively detachably installed on the front and rear sides of the foundation base plate 1, and pole column feet 3 installed above the two foundation main modules 2 and respectively detachably connected to the two foundation main modules 2. Each basic main module 2 includes a pair of columns 21 that are detachably installed on the left and right ends of the corresponding sides of the foundation plate 1, two transition steel plates 22 that are fixed to the bottom of the corresponding columns 21 and detachably connected to the foundation plate 1, and a horizontal plate 23 fixed between the upper ends of the two columns 21. It also includes two sets of first cross pretensioning components 4, which correspond one-to-one with each basic main body module 2 and are respectively set between two columns 21 in the corresponding basic main body module 2; two sets of second cross pretensioning components 5, which are respectively set on the left and right sides between the two basic main body modules 2; and column base mounting components 6, which are set between the two horizontal plates and the rod column base 3 and are used to detachably install the rod column base 3 on the two horizontal plates. Each group of first cross pre-tightening components 4 includes two first upper pre-embedded anchor bars 41, which are pre-embedded and fixed on the upper end of the two side columns 21 near the middle section of the corresponding horizontal plate 23, corresponding to each column 21; two first node ear plates 42, which are welded to the lower end of the two side columns 21 near the horizontal plate 23, corresponding to each column 21; two first tie rods 43, which are pre-embedded and intersected with each first upper pre-embedded anchor bar 41 and whose upper ends are detachably hooked onto the corresponding first upper pre-embedded anchor bar 41; and two first turnbuckles 44, which are pre-embedded and connected to each first tie rod 43 and whose upper ends are detachably hooked onto the lower end of the corresponding first tie rod 43. The lower ends of each first turnbuckle 44 are detachably hooked to the first node ear plate 42 coaxial with the extension line of the corresponding first tie rod 43. The lower ends of each first upper embedded anchor bar 41 are embedded inside the corresponding column 21. The upper ends of each first upper embedded anchor bar 41 are embedded inside the horizontal plate 23. The lower ends of each first node ear plate 42 are welded to the corresponding transition steel plate 22. Each set of second cross pretensioning components 5 is respectively set between the corresponding columns 21 on the same side of the two basic main modules 2. Each set of second cross pretensioning components 5 includes two second upper pre-embedded anchor bars 51 that are embedded in the upper end of the corresponding column 21 near the opposite side column 21, two second node ear plates 52 that are welded to the lower end of the corresponding side column 21 near the outer wall of the other side column 21, two second tie rods 53 that are detachably hooked to the corresponding second upper pre-embedded anchor bars 51 and are cross-arranged with each other, and the upper ends of each tie rod 53 are detachably hooked to the corresponding second upper pre-embedded anchor bars 51, and two second turnbuckles 54 that are detachably hooked to the lower end of the corresponding side second tie rod 53. The lower ends of each second turnbuckle 54 are detachably hooked to the second node ear plate 52 coaxial with the extension line of the corresponding second tie rod 53. The lower ends of each second upper embedded anchor bar 51 are embedded inside the corresponding column 21. The upper ends of each second upper embedded anchor bar 51 are embedded inside the horizontal plate 23. The lower ends of each second node ear plate 52 are welded to the corresponding transition steel plate 22.

[0017] Among them, (1) each column 21 is inclined at 20° towards the center of the foundation plate 1; (2) the column 21 of the foundation main module 2 and the transition steel plate 22 are connected by through-hole plug welding of the longitudinal reinforcement in the column 2 and the transition plate 22; (3) the transition steel plate 22 is welded to the first node ear plate 42 and the second node ear plate 52 by double-sided fillet welds; (4) the foundation plate 1 is equipped with double-layer bidirectional reinforcing steel bars; (5) the base plate below the transition steel plate 22 is thickened; (6) Each of the first tie rods 43 and the second tie rods 53 is made of Q345 steel by cold bending; (7) Each of the first turnbuckles 44 and the second turnbuckles 54 are double U-shaped turnbuckles with a specification of not less than M24; (8) Each of the first tie rods 43 and the second tie rods 53 is fixed with an American or domestic shackle with a rated lifting capacity of not less than 4.75 tons at the upper end, and is detachably hooked and connected to the corresponding first upper pre-embedded anchor bar 41 or the second upper pre-embedded anchor bar 51 through the shackle.

[0018] This embodiment effectively addresses the technical pain points of existing modular spliced ​​foundations, such as weak wind resistance, unstable connections, and non-reusability, through the aforementioned structural design. The column 21 is tilted 20° towards the center of the foundation base plate 1, significantly improving the overall overturning resistance of the foundation and adapting to the lateral thrust under strong coastal wind loads. The column 21 and transition steel plate 22 are connected by perforated plug welding, which greatly enhances the connection strength compared to ordinary welding, preventing column base connection failure. The transition steel plate 22 is welded to the first and second node ear plates using double-sided fillet welds, ensuring uniform stress distribution at the welds and preventing cracking at the weld joints, further guaranteeing the connection stability of the cross-pre-tightening components. The foundation base plate 1 is equipped with double-layer bidirectional reinforcing bars, and the base plate below the transition steel plate 22 is thickened, enhancing the load-bearing capacity and deformation resistance of the foundation base plate and preventing cracking caused by uneven foundation stress. The first and second tie rods are made of Q345 steel through cold bending, which has high strength and good toughness, and is suitable for the force requirements of cross preload. The turnbuckle adopts a double U-shaped structure with a specification of not less than M24, which is easy to adjust and has sufficient preload force, and can flexibly adapt to the preload requirements of different wind load scenarios. The upper end of the tie rod is equipped with a shackle with a rated lifting capacity of not less than 4.75 tons, which not only realizes the detachable connection with the pre-embedded anchor bar, but also improves the load-bearing safety of the connection and prevents the tie rod from falling off. At the same time, all components are detachable, enabling reuse, reducing project costs, and conforming to the concept of green construction.

[0019] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, several vertical anchor bolts 7 are embedded in the horizontal plate 23 at intervals along the circumference, and the upper and lower ends of each vertical anchor bolt 7 are respectively set through the upper and lower sides of the corresponding horizontal plate 23. Each column base mounting assembly 6 includes an anchor plate 61 installed below two horizontal plates 23, a pad 62 welded to the lower end of the column base 3, multiple lower mounting holes 63 corresponding to each vertical anchor bolt 7 and extending through the anchor plate 61 along the thickness direction, multiple upper mounting holes 64 corresponding to each vertical anchor bolt 7 and extending through the pad 62 along the thickness direction, multiple upper anchor nuts 65 corresponding to each vertical anchor bolt 7 and threadedly connected to the upper end of the corresponding vertical anchor bolt 7, and multiple lower anchor nuts 66 corresponding to each vertical anchor bolt 7 and threadedly connected to the lower end of the corresponding vertical anchor bolt 7.

[0020] Among them, the edge distance of each vertical anchor bolt 7 is not less than 120mm, and the anchor plate 61 adopts the form of hollow steel plate, which can save steel consumption.

[0021] This embodiment achieves a detachable and secure connection between the column base 3 and the foundation module 2 through the cooperation of the vertical anchor bolt 7 and the column base installation component 6, adapting to the installation, maintenance, and replacement needs of traffic poles. The edge distance of the vertical anchor bolt 7 is not less than 120mm, which can avoid stress concentration when the anchor bolt is under force, prevent cracking of the horizontal plate 23, and ensure connection stability. The anchor plate 61 adopts a hollow steel plate form, which can save steel as much as possible and reduce manufacturing costs while ensuring the load-bearing strength of the anchor plate and meeting the locking and fixing requirements. At the same time, it reduces the weight of the anchor plate 61, making it easier to hoist and assemble on site, thus balancing economy and practicality. The upper and lower double anchors are locked with nuts to prevent the nuts from loosening under repeated strong wind loads, further improving the installation stability of the column base and preventing the traffic pole from tilting or falling off.

[0022] According to claim 2, the assemblable and reusable traffic pole foundation of this embodiment is provided with vertical reinforcing bars 8 extending along its length in each column 21, and a plurality of transverse stirrups 9 tied and fixed to the outside of the vertical reinforcing bars 8 are arranged at intervals along its length in each column 21. Each horizontal plate 23 is provided with transverse reinforcing bars 10 extending along its length, and each horizontal plate 23 is provided with several vertical stirrups 11 arranged at intervals along its length and tied to the outside of the transverse reinforcing bars 10.

[0023] The vertical reinforcing bars 8 and horizontal stirrups 9 within the column 21 are tied together to form a complete framework, effectively improving the column's shear and bending resistance, resisting lateral impact from strong wind loads, and preventing bending and breakage. The horizontal reinforcing bars 10 and vertical stirrups 11 within the horizontal slab 23 work together to enhance the slab's load-bearing capacity and deformation resistance, ensuring the slab can stably bear the vertical loads from the column bases while simultaneously transferring wind loads to the columns, achieving uniform load distribution. This reinforcing steel framework, compatible with the prefabricated structures of the columns and horizontal slabs, further enhances the overall structural strength and durability of the foundation module, extends the foundation's service life, and adapts to the harsh service environment of coastal areas with high salt spray and strong winds.

[0024] like Figure 1 and Figure 4 As shown, bolt groups are embedded in the foundation base plate 1 at each corresponding transition steel plate 22; Each bolt group includes four anchor bolts 12 that correspond one-to-one with the four corners of the corresponding transition steel plate 22 and protrude from the upper end of the transition steel plate 22. The lower end of each anchor bolt 12 is embedded in the foundation base plate 1, and the upper end of each anchor bolt 12 is threadedly connected with an anchor connection nut 13.

[0025] The bolt assembly uses four anchor bolts positioned at the four corners of the transition steel plate 22, ensuring even stress distribution between the transition steel plate and the foundation base plate, preventing loosening or damage caused by excessive stress at a single point. The anchor bolts, in conjunction with anchor nuts, enable a detachable connection between the foundation main module and the foundation base plate, facilitating disassembly, relocation, and reuse of the foundation. Furthermore, the four-corner bolt fixing method precisely positions the foundation main module, preventing module misalignment and ensuring overall foundation installation accuracy. This lays the foundation for subsequent assembly of the cross-pre-tightening components and the overall stability of the foundation.

[0026] According to claim 4, in this embodiment of the assemblable and reusable traffic pole foundation, each anchor bolt 12 is threadedly connected with a leveling nut 14, and each leveling nut 14 is respectively located below the corresponding transition steel plate 22.

[0027] The leveling nut 14 allows for flexible adjustment of the installation height and levelness of the foundation module 2, adapting to flatness errors during foundation construction and ensuring that the horizontal plate 23 remains level. This prevents uneven load distribution and imbalance of forces on the cross-pre-tightening components caused by module tilting. The leveling nut can be adjusted individually at its corresponding position, making adjustment convenient and precise without the need for additional leveling mechanisms, simplifying the construction process and improving construction efficiency.

[0028] like Figure 4 As shown, each anchor bolt 12 is an anchor plate type anchor bolt.

[0029] Among them, the pre-embedded anchor bolts are anchor plate type anchor bolts, and the embedment depth is not less than 10 times the bolt diameter.

[0030] This significantly enhances the connection strength and pull-out resistance between the anchor bolts and the foundation plate 1, preventing the anchor bolts from being pulled out under strong wind loads.

[0031] Example 2 This embodiment provides an assembly method for the assemblable and reusable traffic pole foundation described in Embodiment 1. The foundation main module 2, the cross tie rod structure, and the foundation base plate 1 are all prefabricated in the factory and formed into an integral structure on site through hoisting operations. Specifically, the steps include: S1. In the excavated foundation, the foundation plate 1 is hoisted and placed into the foundation, and leveling nuts 14 are installed on each anchor bolt 12 on the foundation plate 1. S2. Hoist the two foundation main modules 2, and position the reserved holes at the four corners of the transition steel plate 22 to the corresponding anchor bolts 12 of the foundation base plate 1. Then slowly lower them so that the lower side of each transition steel plate 22 abuts against the upper end of the corresponding leveling nut 14. Then connect the foundation base plate 1 and the foundation main module 2 into a whole by threading the anchor connecting nut 13 on the upper end of the anchor bolt 12. S3. Adjust the height of the two foundation main modules 2 by adjusting the leveling nut 14 so that the top plate of the foundation main module 2 is kept horizontal. Then, use early strength mortar to fill the gap between the leveling nut 14 between the transition steel plate 22 and the foundation bottom plate 1, and then tighten the anchor connecting nut 13. S4. Hook and connect the upper ends of each first tie rod 43 to the corresponding first pre-embedded anchor bar 41. Hook and assemble the lower ends of the first tie rod 43 with the upper ends of the first turnbuckle 44. Then, align and hook the lower ends of the first turnbuckle 44 to the first node ear plate 42 at the lower end of the column 21 located on the opposite side of the upper end connection end of the corresponding first tie rod 43. Complete the assembly of all the first cross pre-tightening components 4 between the two columns 21 inside the two sets of foundation main modules 2. Rotate and tighten the first turnbuckle 44 to realize the cross-tightening of the two columns 21 of the same foundation main module 2. S5. Hook the upper end of the second tie rod 53 onto the corresponding second upper embedded anchor bar 51. Connect the lower end of the second tie rod 53 to the upper end of the second turnbuckle 54. Hook the lower end of the second turnbuckle 54 onto the second node ear plate 52 on the corresponding side column 21 of the upper end connection of the second tie rod 53. Then, by adjusting the extension stroke of the second turnbuckle 54, complete the cross tie and overall pre-tightening constraint between the two sets of foundation main modules 2 on the same side columns 21. S6. Place the anchor plate 61 on the outside of the vertical anchor bolt 7 below the horizontal plate 23, so that the vertical anchor bolt 7 passes through the lower mounting hole 63 of the anchor plate 61. Install and lock the lower anchor nut 66. Place the pad 62 at the bottom of the column foot 3 above the horizontal plate 23, so that the upper end of the vertical anchor bolt 7 passes through the upper mounting hole 64 of the pad 62. Install the upper anchor nut 65 on the upper end of the vertical anchor bolt 7 to complete the detachable and fixed installation of the column foot 3 and the two horizontal plates 23.

[0032] The above description is merely a specific embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A prefabricable and reusable traffic pole foundation, characterized in that: It includes a foundation plate (1) installed in a horizontal foundation, a pair of foundation main modules (2) arranged in a mirror symmetrical manner along the front and rear directions and respectively detachably installed on the front and rear sides of the foundation plate (1), and rod column feet (3) installed above the two foundation main modules (2) and respectively detachably connected to the two foundation main modules (2). Each basic main module (2) includes a pair of columns (21) that are detachably installed on the left and right ends of the corresponding sides of the foundation plate (1), two transition steel plates (22) that are fixed to the bottom of the corresponding columns (21) and detachably connected to the foundation plate (1), and a horizontal plate (23) that is fixed between the upper ends of the two columns (21). It also includes two sets of first cross pretensioning components (4) that correspond one-to-one with each basic main body module (2) and are respectively set between two columns (21) in the corresponding basic main body module (2), two sets of second cross pretensioning components (5) that are respectively set on the left and right sides between the two basic main body modules (2), and a column foot mounting component (6) that is set between the two horizontal plates and the rod column foot (3) and is used to detachably install the rod column foot (3) on the two horizontal plates. Each group of first cross pre-tightening components (4) includes two first upper pre-embedded anchor bars (41) that are pre-embedded and fixed on the upper end of the two side columns (21) near the middle section of the corresponding horizontal plate (23), two first node ear plates (42) that are pre-embedded and fixed on the lower end of the two side columns (21) near the horizontal plate (23), two first tie rods (43) that are pre-embedded and fixed on the upper end of the corresponding first upper pre-embedded anchor bars (41) and are intersected, and whose upper ends are detachably hooked onto the corresponding first upper pre-embedded anchor bars (41), and two first turnbuckles (44) that are pre-embedded and fixed on the upper end of the corresponding first tie rods (43) and whose upper ends are detachably hooked onto the lower end of the corresponding side first tie rods (43). The lower end of each of the first turnbuckles (44) is detachably hooked to the first node ear plate (42) coaxial with the extension line of the corresponding first tie rod (43), the lower end of each of the first upper pre-embedded anchor bars (41) is embedded in the corresponding column (21), the upper end of each of the first upper pre-embedded anchor bars (41) is embedded in the horizontal plate (23), and the lower end of each of the first node ear plates (42) is welded to the corresponding transition steel plate (22). Each group of the second cross pretensioning components (5) is respectively located between the corresponding columns (21) on the same side of the two basic main modules (2). Each group of the second cross pretensioning components (5) includes two second upper pre-embedded anchor bars (51) that are embedded in the upper end of the corresponding column (21) near the side of the opposite column (21) respectively, two second node ear plates (52) that are welded to the lower end of the corresponding column (21) near the outer wall of the other column (21) respectively, two second tie rods (53) that are corresponding to each second upper pre-embedded anchor bar (51) and are cross-arranged with each other, and whose upper ends are detachably hooked onto the corresponding second upper pre-embedded anchor bar (51) respectively, and two second turnbuckles (54) that are corresponding to each second tie rod (53) and whose upper ends are detachably hooked onto the lower end of the corresponding side second tie rod (53) respectively. The lower end of each of the second turnbuckles (54) is detachably hooked to the second node ear plate (52) coaxial with the extension line of the corresponding second tie rod (53). The lower end of each of the second upper pre-embedded anchor bars (51) is embedded in the corresponding column (21). The upper end of each of the second upper pre-embedded anchor bars (51) is embedded in the horizontal plate (23). The lower end of each of the second node ear plates (52) is welded to the corresponding transition steel plate (22).

2. The assemblable and reusable traffic pole foundation according to claim 1, characterized in that: Several vertical anchor bolts (7) are embedded in the horizontal cross plate (23) at intervals along the circumference. The upper and lower ends of each vertical anchor bolt (7) are respectively set through the upper and lower sides of the corresponding horizontal cross plate (23); Each column base mounting assembly (6) includes an anchor plate (61) installed below two horizontal plates (23), a pad plate (62) welded to the lower end of the column base (3), multiple lower mounting holes (63) corresponding to each vertical anchor bolt (7) and extending through the anchor plate (61) along the thickness direction, multiple upper mounting holes (64) corresponding to each vertical anchor bolt (7) and extending through the pad plate (62) along the thickness direction, multiple upper anchor nuts (65) corresponding to each vertical anchor bolt (7) and threadedly connected to the upper end of the corresponding vertical anchor bolt (7), and multiple lower anchor nuts (66) corresponding to each vertical anchor bolt (7) and threadedly connected to the lower end of the corresponding vertical anchor bolt (7).

3. The assemblable and reusable traffic pole foundation according to claim 2, characterized in that: Each of the columns (21) is provided with vertical reinforcing bars (8) extending along its length direction, and each of the columns (21) is provided with a number of horizontal stirrups (9) that are tied and fixed to the outside of the vertical reinforcing bars (8) at intervals along its length direction. Each of the horizontal plates (23) is provided with transverse reinforcing bars (10) extending along its length direction, and each of the horizontal plates (23) is provided with a number of vertical stirrups (11) arranged at intervals along its length direction and tied to the outside of the transverse reinforcing bars (10).

4. The assemblable and reusable traffic pole foundation according to claim 3, characterized in that: Bolt sets are embedded in the foundation base plate (1) at each corresponding transition steel plate (22); Each bolt group includes four anchor bolts (12) that correspond one-to-one with the four corners of the corresponding transition steel plate (22) and protrude from the upper end of the transition steel plate (22). The lower end of each anchor bolt (12) is embedded in the foundation base plate (1), and the upper end of each anchor bolt (12) is threaded with an anchor connection nut (13).

5. The assemblable and reusable traffic pole foundation according to claim 4, characterized in that: Each of the anchor bolts (12) is threaded with a leveling nut (14), and each of the leveling nuts (14) is located below the corresponding transition steel plate (22).

6. The assemblable and reusable traffic pole foundation according to claim 4, characterized in that: Each of the anchor bolts (12) is an anchor plate type anchor bolt.

7. The assembly method for an assemblable and reusable traffic pole foundation according to any one of claims 1 to 6, characterized in that, Includes the following steps: S1. In the excavated foundation, the foundation plate (1) is hoisted and placed into the foundation, and leveling nuts (14) are installed on each anchor bolt (12) on the foundation plate (1). S2. Hoist the two foundation main modules (2), position the reserved holes at the four corners of the transition steel plate (22) to the corresponding anchor bolts (12) of the foundation base plate (1), and then slowly lower them so that the lower side of each transition steel plate (22) abuts against the upper end of the corresponding leveling nut (14). Then connect the foundation base plate (1) and the foundation main module (2) into a whole by installing the anchor connecting nut (13) on the upper end of the anchor bolt (12). S3. Adjust the height of the two foundation main modules (2) by adjusting the leveling nut (14) so ​​that the top plate of the foundation main module (2) remains horizontal. Then, use early strength mortar to fill the gap between the leveling nut (14) between the transition steel plate (22) and the foundation bottom plate (1), and then tighten the anchor connecting nut (13). S4. Hook and connect the upper ends of each first tie rod (43) to the corresponding first pre-embedded anchor bar (41), hook and assemble the lower end of the first tie rod (43) with the upper end of the first turnbuckle (44), and then hook and connect the lower end of the first turnbuckle (44) to the first node ear plate (42) at the lower end of the column (21) located opposite the upper end of the corresponding first tie rod (43), and complete the assembly of all the first cross pre-tightening components (4) between the two columns (21) inside the two sets of foundation main modules (2), rotate and tighten the first turnbuckle (44) to realize the cross tie pre-tightening between the two columns (21) of the same foundation main module (2); S5. Hook the upper end of the second tie rod (53) onto the corresponding second pre-embedded anchor bar (51), connect the lower end of the second tie rod (53) to the upper end of the second turnbuckle (54), hook the lower end of the second turnbuckle (54) onto the second node ear plate (52) on the corresponding side column (21) of the upper end connection of the second tie rod (53), and then adjust the extension stroke of the second turnbuckle (54) to complete the cross tie and overall pre-tightening constraint between the same side column (21) of the two sets of foundation main modules (2) in the front and rear; S6. Place the anchor plate (61) on the outside of the vertical anchor bolt (7) below the horizontal plate (23), so that the vertical anchor bolt (7) passes through the lower mounting hole (63) of the anchor plate (61), assemble the lower anchor nut (66) and lock it, align the pad (62) at the bottom of the column foot (3) above the horizontal plate (23), so that the upper end of the vertical anchor bolt (7) passes through the upper mounting hole (64) of the pad (62), assemble the upper anchor nut (65) at the upper end of the vertical anchor bolt (7), and complete the detachable fixed installation of the column foot (3) and the horizontal plates (23) on both sides.

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