Steel bar planting hole positioning device and method for constructional column

Abstract

The invention discloses a positioning device and a positioning method for a bar planting hole of a constructional column in the technical field of bar planting positioning, a plurality of connecting rods and adjusting supporting rods are assembled into a frame structure in the same plane, a gradienter is further mounted on a center rod, and a foot stool is mounted at each of two ends of each adjusting supporting rod through bolts. A plurality of laser positioners are installed on a frame structure composed of the connecting rods and the adjusting supporting rods, each laser positioner coincides with one embedded steel bar positioning point, a building body on the top of a floor can be marked through the laser positioners, the position of an embedded steel bar hole of a constructional column can be calibrated and positioned all the time, laser positioning is light beam irradiation positioning, and the positioning accuracy is high. In addition, continuous irradiation positioning is achieved during drilling, and it is guaranteed that the drilling direction is accurate; and the supporting height of the frame can be adjusted through the foot stands and the adjusting rods, so that the frame composed of the connecting rods and the adjusting supporting rods can be kept horizontal, the positioning precision of the embedded steel bar holes is improved, and the construction speed and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rebar planting positioning, and in particular to a rebar planting hole positioning device and a positioning method for a structural column. Background Art

[0002] Structural columns refer to reinforced concrete structural columns that should be set in the walls of multi-story brick-concrete structures in order to enhance the integrity and stability of the building. They are connected to the ring beams of each floor to form a space frame that can resist bending and shearing. It is an effective measure to prevent the collapse of the house. Structural columns are generally set at the four corners of the exterior wall, the intersection of the horizontal wall and the exterior longitudinal wall at the staggered level, and on both sides of larger openings. Steel bars need to be implanted inside the structural column, called anchor bars, to increase its structural strength. An anchor bar should be pre-drilled in the building structure that needs to be supported, and the upper and lower ends of the anchor bar should be buried in the holes drilled in the building body. The anchor bar should be ensured to be vertical to avoid misalignment of the upper and lower ends of the anchor bar, otherwise it will cause the anchor bar support to bend in the force direction. The verticality of the anchor bar placement will directly affect the structural strength of the structural column.

[0003] At present, the holes for pre-embedded reinforcement in buildings are drilled by visual inspection or plumb line positioning. Visual inspection method: Visual inspection of the top reinforcement hole and the bottom reinforcement, with large errors, but this method is fast to construct; and because the outside of the reinforcement needs to be poured with concrete, it is impossible to check the embedded state of the internal reinforcement, which leads to the construction workers using this method more frequently in order to save time. This method has large deviations in the positioning of the reinforcement holes in the structural columns, especially the position deviation of the reinforcement holes at the top of the structural columns;

[0004] Plumb line positioning method: hang the head end of the plumb line to fit the bottom of the beam, align the gravity end of the plumb line with the planted steel bars at the bottom, move the head end of the plumb line to locate the steel bar planting hole on the top of the structural column and mark it. This method is more accurate in positioning but the process is cumbersome and the construction speed is slow. In addition, the plumb line needs to be moved away each time a hole is drilled, and then the hole is drilled. The drill hole is prone to deflection, and the plumb line and the drill tool interfere with each other. At the same time, the higher the building height, the more structural columns are needed, and the plumb line will swing more on larger floors, which makes the operation more difficult and the error greater.

[0005] Based on this, the present invention designs a reinforcement hole positioning device and positioning method for a structural column to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a device and method for positioning rebar holes for structural columns. The device can mark the building body at the top of the floor through a laser locator, and always calibrate and locate the position of the rebar holes of the structural column. Moreover, the laser positioning is a light beam irradiation positioning, which does not affect the drilling tool and has accurate positioning. The irradiation positioning is continued while drilling to ensure the accuracy of the drilling direction. Moreover, the device can adjust the support height of the frame through a tripod and an adjusting rod, so that the frame composed of the connecting rod and the adjusting support rod remains horizontal, thereby improving the positioning accuracy of the rebar holes, increasing the construction speed and accuracy, and also improving the strength of the structural column.

[0007] The present invention is implemented as follows: a structural column anchor hole positioning device and positioning method and positioning method,

[0008] The positioning device includes: a center rod, a connecting rod, an adjustment support rod, a tripod, a laser locator and a level;

[0009] The central rod, the connecting rod and the adjusting strut are all straight rods, and a plurality of the connecting rods, a plurality of adjusting struts and a central rod are assembled in the same plane to form a crisscross frame structure;

[0010] A positioning tube is fixedly arranged at the center point of the center rod, and the positioning tube is a straight tube with two ends opened. The two ends of the positioning tube vertically penetrate the upper and lower sides of the center rod, and the axis of the positioning tube is perpendicular to the plane where the center rod is located;

[0011] The central rod can be detachably installed on the midpoint connecting line of the two middle adjustment struts;

[0012] A level is also installed on the central rod;

[0013] The tripod is a sheet-shaped bracket, on which an adjustment rod is vertically installed through a thread so as to be able to be raised and lowered, and a supporting foot is arranged at the lower end of the adjustment rod;

[0014] A tripod is detachably mounted on both ends of each adjusting support rod via bolts.

[0015] A plurality of the laser locators are mounted on a frame structure composed of connecting rods and adjusting struts by bolts, and the laser locators are arranged vertically;

[0016] The positioning method includes the following steps: 1. Clean the ground where the reinforcement is to be planted, mark the position where the reinforcement is to be planted on the ground, connect any two relative reinforcement points, and the intersection of the two such lines is the center point of the structural column;

[0017] Step 2: Observe downward through the positioning tube to make sure that the midline point of the ground and the upper and lower ends of the positioning tube are in the same straight line, and then start to place the device. Use the tripod to level the frame consisting of the center rod, connecting rod and adjusting rod;

[0018] Step 3: Adjust the height of the support rod by lifting the adjustment rod until the level is in a horizontal state, and install the laser locator at a suitable position on the adjustment support rod or the connecting rod to ensure that the laser locator is directly above the rebar marking point on the ground;

[0019] Step 4: Turn on the laser locator, and the light beam emitted by the laser locator is marked on the top of the building to achieve the purpose of accurate marking.

[0020] Furthermore, the central rod, the connecting rod and the adjusting support rod are all long stainless steel flat plates;

[0021] The central rod, the connecting rod and the adjusting support rod are evenly provided with a plurality of locking holes, and the axes of the plurality of locking holes on a single central rod, the connecting rod or the adjusting support rod are on the same straight line; the locking holes are through holes;

[0022] The locking hole is a waist-shaped hole.

[0023] Furthermore, the length of the positioning tube is between 1-3 cm, and the aperture of the positioning tube is between 0.2-0.6 cm.

[0024] Furthermore, the tripod is an L-shaped integral stainless steel angle bracket, and two connecting holes are provided on the bottom plate of the tripod. The connecting holes on the tripod are locked with any two adjacent locking holes by bolts;

[0025] A positioning piece is arranged on the outside of the tripod, and the positioning piece has two pieces, and the two positioning pieces are parallel to the bottom plate of the tripod, and a circular hole is opened on the positioning piece;

[0026] The adjusting rod is a threaded rod, and the adjusting rod is locked in the circular hole of the positioning plate by a nut;

[0027] The supporting foot is a rubber buffer pad, and the supporting foot is fixed to the lower end of the adjusting rod.

[0028] Furthermore, the laser locator is a laser lamp, and the laser locator can be detachably installed in any locking hole by means of bolts, and the positioning light beam emitted by the laser locator is vertically upward.

[0029] Furthermore, the level is a circular level bubble, and the level is locked in any locking hole by means of bolts.

[0030] The beneficial effects of the present invention are as follows: 1. The present invention can perform linkage positioning on the upper and lower ends of the structural column reinforcement. The present device ensures that the embedded holes at the upper and lower ends of the reinforcement in the building structure are kept in the same straight line. The positioning of the present device is performed by positioning the building floor at the bottom and continuously positioning the reinforcement hole at the top. The laser locator generates a light beam, and the positioning is accurate and convenient.

[0031] 2. This device adds a positioning tube, which not only locates the embedded steel bar, but also associates and matches the embedded steel bar with the center point of the structural column, ensuring that the embedded steel bar hole is around the center point of the structural column, so that the subsequent embedded steel bar is evenly distributed, and the positioning tube at the center point and the position of the embedded steel bar are located at the same time, making the structural column more accurate and stable after pouring;

[0032] 3. This device is also equipped with a tripod, on which the adjustment rod can be raised and lowered. A spirit level is also installed to monitor the levelness of the center rod in real time, thereby ensuring the levelness of the frame structure formed by the connecting rod and the adjustment strut, and ensuring the levelness of the entire device. A higher-precision positioning platform is provided for the calibration of the rebar holes, further improving the accuracy of the rebar holes, ensuring the installation accuracy of the rebar, and thereby improving the support stability and strength of the structural column. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0034] Figure 1 It is a schematic top view of the structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the tripod structure of the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1-center rod, 11-connecting rod, 12-adjusting support rod, 13-locking hole, 2-trip stand, 21-positioning plate, 22-adjusting rod, 23-supporting foot, 24-connecting hole, 3-laser locator, 31-positioning tube, 4-level meter. DETAILED DESCRIPTION

[0038] See also Figures 1 to 2 As shown, the present invention provides a positioning device and positioning method for anchor bolt holes of a structural column. In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings in the specification and specific implementation methods.

[0039] In a specific embodiment of the technical solution of the present invention:

[0040] It includes a center rod 1, a connecting rod 11, an adjustment support rod 12, a tripod 2, a laser locator 3 and a level 4;

[0041] The central rod 1, the connecting rod 11 and the adjusting strut 12 are all straight rods. One central rod 1, multiple connecting rods 11 and multiple adjusting struts 12 are assembled in the same plane to form a crisscross frame structure. The locking holes 13 on the connecting rod 11 and the adjusting strut 12 overlap, and bolts are inserted and locked by nuts to form an overall plane frame structure.

[0042] The center rod 1, the connecting rod 11 and the adjusting support rod 12 are all long stainless steel plates;

[0043] A plurality of locking holes 13 are evenly formed on the central rod 1, the connecting rod 11 and the adjusting support rod 12, and the locking holes 13 are waist-shaped holes.

[0044] The axes of the multiple locking holes 13 on the single center rod 1, the connecting rod 11 or the adjusting support rod 12 are on the same straight line; the locking holes 13 are through holes, and the locking holes 13 penetrate the upper and lower sides of the center rod 1, the connecting rod 11 or the adjusting support rod 12;

[0045] A positioning tube 31 is fixed on the center point of the center rod 1. The center point of the center rod 1 is the axial symmetric point on its plane. In the frame structure composed of the center rod 1, the connecting rod 11 and the adjusting strut 12, the positioning tube 31 needs to be at the center point of multiple laser locators 3 of the entire frame. This setting is adjusted during actual construction.

[0046] The device is easy to position, and the locking hole 13 is a waist-shaped hole, which can be adjusted in a small amount to ensure the installation position of the laser locator 3 and achieve the effect of precise positioning.

[0047] The positioning tube 31 is a straight tube with openings at both ends. Both ends of the positioning tube 31 vertically penetrate the upper and lower sides of the center rod 1, and the axis of the positioning tube 31 is perpendicular to the plane where the center rod 1 is located; the length of the positioning tube 31 is between 1-3 cm, and the aperture of the positioning tube 31 is between 0.2-0.6 cm.

[0048] A positioning tube 31 of such a size allows the line of sight to remain straight when passing through it, thereby maintaining accuracy in positioning the center point of the structural column. During actual construction, a mobile laser pen can be used to illuminate the positioning tube 31. A laser locator 3 can also be directly installed on the top of the positioning tube 31 to illuminate it vertically downward. It is necessary to ensure that the positioning tube 31 is vertical.

[0049] The two ends of the center rod 1 are locked between the two adjustment struts 12 by bolts, and the center rod 1 is installed on the midpoint line of the two middle adjustment struts 12. If there are only two adjustment struts 12, then the two ends of the center rod 1 are respectively locked on the midpoint locking holes 13 of the two adjustment struts 12. It is necessary to ensure that the center rod 1 is on the midpoint line of the adjustment struts 12 that are parallel to each other.

[0050] After the frame structure composed of the connecting rod 11 and the adjusting strut 12 is formed, the positioning tube 31 can be adjusted in advance to its center point; the center rod 1, the connecting rod 11 and the adjusting strut 12 are all placed horizontally, and the flat plate structure needs to be set horizontally, and the locking hole 13 is opened vertically.

[0051] A spirit level 4 is also installed on the center rod 1; the spirit level 4 is a circular level bubble, which is locked in any locking hole 13 by bolts and can be easily disassembled. Therefore, the spirit level 4 can also be installed on the connecting rod 11 or the adjusting strut 12 to ensure that the frame composed of the entire center rod 1, the connecting rod 11 and the adjusting strut 12 remains level as a whole.

[0052] The tripod 2 is a sheet-shaped bracket, on which an adjustment rod 22 is vertically installed so as to be able to be raised and lowered through a thread, and a support foot 23 is arranged at the lower end of the adjustment rod 22;

[0053] Each of the two ends of the adjusting strut 12 is detachably mounted with a tripod 2 by bolts. The structure of the connecting rod 11 is the same as that of the adjusting strut 12. The tripod 2 can be mounted on each connecting rod 11 or on the locking holes 13 at both ends of the adjusting strut 12. Figure 1 As shown, only one tripod 2 is installed at both ends of each adjustment support rod 12 to achieve stable support;

[0054] The tripod 2 is an L-shaped integral stainless steel angle bracket, and two connecting holes 24 are provided on the bottom plate of the tripod 2. The connecting holes 24 on the tripod 2 are locked with any two adjacent locking holes 13 by bolts;

[0055] A positioning piece 21 is provided on the outside of the tripod 2. The positioning piece 21 has two pieces. The two positioning pieces 21 are parallel to the bottom plate of the tripod 2. A circular hole is provided on the positioning piece 21.

[0056] The adjusting rod 22 is a threaded rod, and the adjusting rod 22 is locked in the circular hole of the positioning plate 21 by a nut;

[0057] The support foot 23 is a rubber buffer pad, and the support foot 23 is fixed to the lower end of the adjustment rod 22;

[0058] A tripod 2 may be installed at each of the four corners of the adjustment support rod 12 to achieve the purpose of stable support.

[0059] Multiple laser locators 3 are installed on the frame structure composed of the connecting rod 11 and the adjusting strut 12 by bolts, and the laser locators 3 are arranged vertically. The laser locator 3 is a laser lamp that generates a laser beam. The laser locator 3 can be detachably installed in any locking hole 13 by bolts, and the positioning beam emitted by the laser locator 3 is vertically upward.

[0060] The method comprises the following steps: 1. cleaning the ground where reinforcement is required, marking the position where reinforcement is required on the ground, connecting any two relative reinforcement points, and the intersection point of the two such connecting lines is the center point of the structural column;

[0061] Step 2, look down through the positioning tube 31 to make sure that the midline point of the ground and the upper and lower ends of the positioning tube 31 are in the same straight line, start to place the device, and use the tripod 2 to place the frame consisting of the center rod 1, the connecting rod 11 and the adjustment rod 12 flat;

[0062] Step 3, adjust the height of the support rod 12 by lifting and lowering the adjustment rod 22 until the level meter 4 is in a horizontal state, install the laser locator 3 in the locking hole 13 at a suitable position on the adjustment support rod 12 or the connecting rod 11, and ensure that the laser locator 3 is directly above the rebar marking point on the ground;

[0063] Step 4: Turn on the laser locator 3. The light beam emitted by the laser locator 3 is marked on the top of the building, so as to achieve the purpose of accurate marking, and the drilling operation can be conveniently performed on the marked point.

[0064] It should be noted that:

[0065] 1. This device does not require plumb bob positioning or naked eye positioning, but uses a laser locator 3 for calibration. The overall frame of this device serves as a positioning platform, and the entire platform can be adjusted to ensure that the support platform is accurately positioned and level. When laser positioning is performed on the rebar holes on the top of the building structure, this device is set up on the floor when drilling, and the device and the drilling tool do not interfere with each other. 2. This device can locate the rebars of a variety of different structural columns, which can be structural columns with 4 rebars, or structural columns with 6 or 8 rebars. After positioning, the laser locator 3 can be installed on the plane frame of the connecting rod 11 and the adjusting support rod 12. It is easy to operate, easy to position, and flexible in construction.

[0066] During the specific operation of the present invention, the structural column is positioned on the floor through the design plan and drawings, and the accurate position of the structural column inside the building structure is determined on the base plate through common measuring devices, which can be but not limited to tape measures or laser positioning instruments, and then the number of embedded steel bars and the distribution position of the embedded steel bars in the structural column are determined.

[0067] Clean the base plate and mark the position of the rebar on the floor. You can mark the rebar with chalk or other marking pens. Connect the marked points of any two opposite rebars, and the intersection point is the center point of the structural column.

[0068] Then assemble and adjust the device so that the number and assembly angle of the connecting rods 11 and the adjusting struts 12 are adapted to the shape and size of the structural column. Generally, there are two connecting rods 11 and two adjusting struts 12, which are perpendicular to each other to form a tic-tac-toe shape. The actual size and shape of the connecting rods 11 and the adjusting struts 12 are the same, but the functions they play are different. The difference is that the two ends of the adjusting struts 12 need to be installed with tripods 2.

[0069] The positioning tube 31 is fixed on the center rod 1 at its center point, and the level 4 can be installed one on the center rod 1, the connecting rod 11 and the adjusting support rod 12 to ensure that the entire frame remains level. For conventional engineering construction, only one level 4 needs to be installed on the center rod 1.

[0070] When positioning the entire frame, first locate the center point of the structural column. When the line of sight passes through the positioning tube 31 from top to bottom and the intersection center point of the structural column can be seen, it can be considered that the positioning tube 31 and the center point of the structural column are vertically overlapped. A laser locator 3 can also be used to illuminate vertically downward along the positioning tube 31 to ensure its accurate position.

[0071] Then adjust the height of the adjusting rod 22 to keep the bubble of the level 4 in the center to ensure that the entire frame remains horizontal. And the entire frame structure is stably erected.

[0072] Then locate the position of laser locator 3. Because the entire device is erected on the base plate, the difference between the positioning point of laser locator 3 and the bottom rebar is very small. The bottom of laser locator 3 almost fits the bottom of the building, and there will be no error. Align the bottom of laser locator 3 with the previously measured point of the rebar on the base plate, and the laser beam at the top of the laser locator 3 is directed to the top of the building structure to achieve the purpose of positioning the upper end of the rebar on the top of the building. The laser irradiation positioning remains vertical and does not require additional markings. There is no physical object at the positioning point, and the positioning mark will not disappear as drilling continues, ensuring continuous positioning.

[0073] Then install a laser locator 3 at each anchor point of the rebar, and lock it after fine-tuning it accurately to ensure the accuracy of the laser locator 3. That is, the effect of locating the embedded hole of the upper end of the rebar in the building is achieved. Then drill the anchor hole on the top of the building first, and after completion, remove the device and drill the marked anchor hole on the bottom plate of the building.

[0074] At this time, the upper and lower ends of the anchor hole are kept in the same straight line, and the positioning is accurate. It can be adjusted according to the different anchor positions and quantities of the structural columns of each construction building, and is flexible to use.

[0075] The basic structure of the structural columns in the entire building is the same. The device can be adjusted once and reused until the construction of the entire building is completed. The operation and construction are simple. After the first adjustment is completed, the subsequent positioning of the rebar holes of the same structural columns only requires measuring the rebar positioning points of the building floor, and then checking the positioning tube 31 to position it with the center of the structural column, and turning on the laser locator 3. The operation is simple.

[0076] The top and bottom referred to in this device are in the direction of the top and bottom of the building. The orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0077] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A structural column anchor hole positioning device and positioning method and positioning method, characterized in that: The positioning device comprises: a central rod (1), a connecting rod (11), an adjustment support rod (12), a tripod (2), a laser positioner (3) and a level (4); The central rod (1), the connecting rod (11) and the adjusting strut (12) are all straight rods, and a plurality of the connecting rods (11), a plurality of the adjusting struts (12) and a central rod (1) are assembled in the same plane to form a crisscross frame structure; A positioning tube (31) is fixedly arranged at the center point of the center rod (1), and the positioning tube (31) is a straight tube with two ends open. The two ends of the positioning tube (31) vertically penetrate the upper and lower sides of the center rod (1), and the axis of the positioning tube (31) is perpendicular to the plane where the center rod (1) is located; The central rod (1) can be detachably mounted on a line connecting the midpoints of the two middle adjustment struts (12); A level (4) is also installed on the central rod (1); The tripod (2) is a sheet-shaped bracket, an adjusting rod (22) is vertically mounted on the tripod (2) via a thread and can be raised and lowered, and a supporting foot (23) is arranged at the lower end of the adjusting rod (22); A tripod (2) is detachably mounted on both ends of each of the adjustment struts (12) via bolts. A plurality of the laser locators (3) are mounted on a frame structure composed of a connecting rod (11) and an adjusting support rod (12) by means of bolts, and the laser locators (3) are arranged vertically; The positioning method includes the following steps: Step 1: Clean the ground where the reinforcement is needed, mark the location where the reinforcement is needed, connect any two relative reinforcement points, and the intersection of the two such lines is the center point of the structural column; Step 2, observe downward through the positioning tube (31), make sure that the midline point of the ground and the upper and lower ends of the positioning tube (31) are in the same straight line, start to place the device, and use the tripod (2) to place the frame composed of the center rod (1), the connecting rod (11) and the adjustment support rod (12) flat; Step 3, adjusting the height of the support rod (12) by raising and lowering the adjustment rod (22) until the level (4) is in a horizontal state, installing the laser locator (3) at a suitable position on the adjustment support rod (12) or the connecting rod (11), and ensuring that the laser locator (3) is directly above the rebar planting mark point on the ground; Step 4, turning on the laser locator (3), the light beam emitted by the laser locator (3) marks the top of the building, and accurately marks the opening at the top of the rebar.

2. The device and method for positioning the anchor hole of a structural column according to claim 1, characterized in that: The central rod (1), the connecting rod (11) and the adjusting support rod (12) are all long stainless steel flat plates; The central rod (1), the connecting rod (11) and the adjusting support rod (12) are evenly provided with a plurality of locking holes (13); the axes of the plurality of locking holes (13) on a single central rod (1), the connecting rod (11) or the adjusting support rod (12) are on the same straight line; the locking holes (13) are through holes; The locking hole (13) is a waist-shaped hole.

3. The device and method for positioning the anchor hole of a structural column according to claim 1, characterized in that: The length of the positioning tube (31) is between 1 and 3 cm, and the aperture of the positioning tube (31) is between 0.2 and 0.6 cm.

4. The device and method for positioning the anchor hole of a structural column according to claim 2, characterized in that: The tripod (2) is an L-shaped integral stainless steel angle bracket, and two connecting holes (24) are provided on the bottom plate of the tripod (2). The connecting holes (24) on the tripod (2) are locked with any two adjacent locking holes (13) by means of bolts; A positioning piece (21) is arranged on the outer side of the tripod (2), and the positioning piece (21) has two pieces. The two positioning pieces (21) are parallel to the bottom plate of the tripod (2), and a round hole is provided on the positioning piece (21); the adjusting rod (22) is a threaded rod, and the adjusting rod (22) is locked in the round hole of the positioning piece (21) by a nut; the supporting foot (23) is a rubber buffer pad, and the supporting foot (23) is fixed to the lower end of the adjusting rod (22).

5. The device and method for positioning the anchor hole of a structural column according to claim 2, characterized in that: The laser locator (3) is a laser lamp. The laser locator (3) is detachably installed in any locking hole (13) by means of bolts. The positioning light beam emitted by the laser locator (3) is directed vertically upward.

6. The device and method for positioning the anchor hole of a structural column according to claim 2, characterized in that: The level (4) is a circular level bubble, and the level (4) is locked in any locking hole (13) by means of bolts.

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