CN114809066B - Annular positioning device and positioning method for large-diameter steel column foundation bolt installation - Google Patents

Abstract

The invention discloses a large-diameter steel column foundation bolt mounting annular positioning device, and belongs to the field of building foundations; comprises a positioning ring and a plurality of supporting frames; the positioning ring is provided with a plurality of through holes for the anchor bolts to pass through; the plurality of supporting frames are uniformly distributed around the axis of the positioning ring; the support frame comprises a cross rod and support rods fixedly connected to both ends of the cross rod; the transverse rod supports the positioning ring, and the lower end of the supporting rod is fixedly connected with the ground, so that the supporting frame is erected on the ground. The foundation bolt installing and positioning method comprises the steps of firstly, manufacturing a base; secondly, placing foundation bolts; positioning foundation bolts; binding the reinforcing steel bars; pouring concrete; and step six, disassembling the positioning device. The problem that the foundation bolts are displaced or toppled when concrete pouring is reduced is solved, and the foundation bolts can be accurately fixed on the steel column.

Description

Annular positioning device and positioning method for large-diameter steel column foundation bolt installation

Technical Field

The invention relates to the field of building foundations, in particular to a large-diameter steel column foundation bolt installation annular positioning device and a positioning method.

Background

Steel columns are industrial products, and are columns made of steel. Is used for large and medium-sized industrial plants, large-span public buildings, high-rise houses and the like.

The steel column is installed by fixing the foundation bolts buried in the foundation in advance, the foundation bolts need to be wound into a circular structure in the burying process, the size of the circular structure formed by the foundation bolts is also required, but in practice, concrete pouring can be carried out after the foundation bolts are installed, the concrete is thick, so that the concrete impacts the foundation bolts in the flowing process, the foundation bolts are easy to displace, and the accuracy of the foundation bolt installation is affected.

Disclosure of Invention

In a first aspect, the present application provides a large diameter steel column foundation bolt installs annular positioner, adopts following technical scheme:

an annular positioning device for mounting large-diameter steel column foundation bolts comprises a positioning ring and a plurality of supporting frames;

the positioning ring is provided with a plurality of through holes for the anchor bolts to pass through, and the through holes are uniformly distributed around the axis of the positioning ring;

the diameter of a circular structure formed by the circle centers of the through holes is the same as that of a circular structure formed by the embedded positions of the foundation bolts;

the plurality of supporting frames are uniformly distributed around the axis of the positioning ring; the support frame comprises a cross rod and support rods fixedly connected to both ends of the cross rod;

the transverse rod supports the positioning ring, and the lower end of the supporting rod is fixedly connected with the ground, so that the supporting frame is erected on the ground.

Through the technical scheme, the anchor bolts can penetrate through the through holes in the positioning rings, so that the positioning rings can be sleeved on all the anchor bolts together, a plurality of anchor bolts can form a complete circular structure, the annular structure formed by the anchor bolts is convenient to cooperate with the steel column, the probability of moving the anchor bolts can be reduced when concrete is poured by the positioning rings, the anchor bolts are better aligned with the steel column, and the steel column is convenient to install; the support frame can support the holding ring, makes the holding ring be located rag bolt's middle part position department, makes the holding ring can be better carry out spacingly to rag bolt.

Optionally, an auxiliary ring is arranged above the positioning ring, the size of the auxiliary ring is the same as that of the positioning ring, and the axes of the auxiliary ring and the positioning ring are coincident;

the auxiliary ring is provided with round holes which are arranged in one-to-one correspondence with the through holes.

Through adopting above-mentioned technical scheme, the auxiliary ring is located the top of holding ring, carries out spacingly to rag bolt jointly, carries out spacingly to rag bolt through two points, when reducing rag bolt to receive concrete impact to produce the removal, can also reduce rag bolt and produce crooked probability to rag bolt's straightness is better, can make the steel column installation after can not produce the slope.

Optionally, the lower extreme of rag bolt still is equipped with the base, and the base includes bottom plate and a plurality of floor, and on rag bolt's lower extreme fixed connection bottom plate, the floor was fixed on the bottom plate while the floor was also fixed on rag bolt, a plurality of ribs were around rag bolt evenly distributed.

Through adopting above-mentioned technical scheme, the area of contact between rag bolt and the ground can be increased to the base to rag bolt can be better the queuing on ground.

Optionally, the foundation bolt is further provided with a thread protection component, and the thread comprises a sleeve and a protection cloth connected with the sleeve;

the sleeve is in threaded fit with the anchor bolt, the sleeve is attached to the upper surface of the positioning ring, and the protective cloth is wound around the part of the anchor bolt above the positioning ring;

one end of the protection cloth is connected with the sleeve, the other end of the protection cloth is fixedly connected with the fixing sleeve, and the fixing sleeve is sleeved at the upper end of the foundation bolt.

Through adopting above-mentioned technical scheme, protection cloth can protect rag's screw thread, reduces the damage that the in-process of pouring concrete caused to the screw thread, and protection cloth twines on rag through sheathed tube rotation, can make the better winding of protection cloth on rag, and the other one end of protection cloth is fixed in rag's upper end by fixed cover, need not fix protection cloth's both ends, can improve the efficiency of work, can also reduce the loose probability of protection cloth.

Optionally, the protective cloth is wound on the sleeve.

Through adopting above-mentioned technical scheme, the protection cloth twines on receiving the reel, makes things convenient for the use of screw thread protection subassembly more, and can make the protection cloth rotate along with the sleeve pipe, makes things convenient for the protection cloth to twine on rag bolt more.

Optionally, the sleeve is further sleeved with a winding drum, a circle of convex edge is integrally formed on the outer wall of the sleeve, the upper end of the winding drum is abutted to the lower surface of the convex edge, the lower end of the winding drum is provided with a fixing ring which is in threaded connection with the sleeve, and the fixing ring is abutted to the lower end of the winding drum.

Through adopting above-mentioned technical scheme, after the protection cloth is expanded from the receipts reel, and the protection cloth still can be by the concrete of sputtering a lot on the surface, so the protection cloth can not reuse immediately, so through the receipts reel that can dismantle, the protection cloth of being convenient for the replacement new, the quick reuse of the protection subassembly of being convenient for.

Optionally, the upper end of the sleeve is fixedly connected with a plugboard, and the lower end of the fixed sleeve is provided with a slot for the plugboard to insert;

the end of the plugboard, which is far away from the sleeve, is fixedly connected with an elastic bulge, and a containing groove into which the elastic bulge can be clamped is formed in the slot;

threads are also arranged in the fixing sleeve, and the fixing sleeve is in threaded connection with the upper end of the foundation.

Through adopting above-mentioned technical scheme, sleeve pipe and fixed cover link together, can make both use together, if fixed cover and sleeve pipe mutually independent, agree to lead to fixed cover pulling protection cloth to expand in advance, influence the use of protection cloth.

In a second aspect, the present application provides an anchor bolt installation positioning method, which adopts the following technical scheme:

an anchor bolt installation and positioning method belongs to implementation of a large-diameter steel column anchor bolt installation annular positioning device, and comprises the following steps:

step one: manufacturing a base; firstly, welding a fixed plate and a rib plate at the lower end of an anchor bolt to finish the manufacture of a base;

step two: placing foundation bolts; surrounding the foundation bolts with the base in an annular shape, and uniformly distributing the foundation bolts;

step three: positioning of foundation bolts; the anchor bolt is annularly positioned through the positioning ring and the auxiliary ring, and threads of the anchor bolt are protected by using the thread protection assembly;

step four: binding reinforcing steel bars; binding double-layer double-row steel bars, wherein the base is positioned between the double-layer steel bars;

step five: pouring concrete; until the concrete submerges the locating ring to stop;

step six: disassembling the positioning device; curing the concrete, and disassembling the auxiliary ring and the center frame after the concrete is solidified.

Through adopting above-mentioned technical scheme, the base can make the stable place of rag bolt subaerial, then carries out spacingly to rag bolt through holding ring and auxiliary ring, makes the shape that a plurality of rag bolts constitute can not produce the deformation, and screw thread protection subassembly can protect rag bolt's screw thread to make rag bolt can keep vertical state pre-buried in concrete, reduce concrete placement and lead to rag bolt to produce displacement or the probability of slope, thereby make things convenient for the installation of steel column.

Optionally, in the third step, before the positioning ring is installed, the supporting frames are installed first, and the plurality of supporting frames are uniformly distributed around the axis of the positioning ring;

when the support frames are installed, two support rods belonging to the same support frame are symmetrically installed on the inner side and the outer side of the positioning ring, then the cross rod is installed, and finally the positioning ring is prevented from being arranged on the cross rod, so that the installation of the positioning ring is completed;

the center frame is installed, the center of the center frame is overlapped with the axis of the positioning ring, the end part of the center frame is overlapped on the upper surface of the positioning ring, the auxiliary ring is positioned right above the positioning ring, and the auxiliary ring is attached to the upper surface of the center frame.

Through adopting above-mentioned technical scheme, the support frame can support the holding ring, makes the holding ring can be located rag bolt's middle part position department, is convenient for spacing rag bolt, and the center frame is convenient to the support of auxiliary ring, makes auxiliary ring can not laminate together with the holding ring, and the center of center frame and the centre of a circle coincidence that rag bolt constitutes simultaneously also are convenient for fix a position holding ring, auxiliary ring, reduce holding ring, auxiliary ring and produce the problem of skew.

Optionally, in the third step, before the positioning ring is installed and the auxiliary ring is installed, the protection cloth needs to be wound on the anchor bolt, so as to protect the threads of the anchor bolt:

the protection sleeve and the fixing sleeve are sleeved on the foundation bolt together, the sleeve and the protection sleeve are rotated, the sleeve is rotated, the sleeve moves downwards, the protection cloth is wound on the sleeve, the end part of the protection cloth is fixedly connected with the fixing sleeve, the fixing sleeve is fixed, and the protection cloth is wound on the foundation bolt along with the rotation of the sleeve.

Through adopting above-mentioned technical scheme, the winding of convenient control protection cloth is on the screw thread, and still need not fix the both ends of protection cloth respectively, can improve the efficiency of construction to screw thread protection work, can also improve the effect of protection.

In view of the above-mentioned, it is desirable,

1. the positioning ring is positioned in the middle of the foundation bolt, the positioning ring limits the shape formed by a plurality of foundation bolts, so that the shape of the circular ring can be maintained, and the auxiliary ring is positioned right above the positioning ring and limits the foundation bolts, so that the auxiliary ring is matched with the positioning ring to enable the foundation bolts to be buried in concrete in a vertical state, the probability of inclination caused by the impact of the foundation bolts by the concrete is reduced, and the installation of the steel column is facilitated;

2. the sleeve in the thread protection assembly is in threaded fit with the anchor bolt, the protection cloth is wound on the sleeve, the other end of the protection cloth is connected with a fixing sleeve, the fixing sleeve is in threaded connection above the anchor bolt, and the sleeve rotates to enable the protection cloth to be wound on the anchor bolt, so that the protection cloth protects threads of the anchor bolt;

3. step one, manufacturing a base; secondly, placing foundation bolts; positioning foundation bolts; binding the reinforcing steel bars; pouring concrete; step six, curing the concrete and disassembling the auxiliary ring; finish the accurate installation to rag bolt, the fixed mounting of steel column of being convenient for.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a positioning device in an embodiment.

Fig. 2 is a positional relationship diagram of the positioning ring and the auxiliary ring in the embodiment.

FIG. 3 is a schematic view highlighting an anchor bolt in an embodiment.

FIG. 4 is a cross-sectional view showing the structure of the sleeve in the embodiment.

Fig. 5 is an enlarged view of a portion a in fig. 2.

Reference numerals illustrate:

1. a positioning ring; 11. a through hole; 2. an auxiliary ring; 21. a round hole; 22. a relief groove; 3. an anchor bolt; 31. a fixing plate; 32. rib plates; 4. a support frame; 41. a cross bar; 42. a support rod; 43. a center frame; 5. a thread protection assembly; 51. a sleeve; 511. a rib; 512. a fixing ring; 513. a slot; 514. a receiving groove; 52. a fixed sleeve; 521. a cross plate; 522. an arc-shaped plate; 523. a plug board; 524. an elastic protrusion; 53. winding up a winding drum; 54. a guide plate; 541. a slit hole; 6. and (5) protecting cloth.

Detailed Description

Example 1

The embodiment particularly discloses a large-diameter steel column foundation bolt mounting annular positioning device, which comprises a positioning ring 1 and an auxiliary ring 2 which are arranged in parallel up and down with reference to FIG. 1; the locating ring 1 and the auxiliary ring 2 cooperate to limit a plurality of rag bolts 3, so that the rag bolts 3 form an annular structure, the two points of the locating ring 1 and the auxiliary ring 2 are used for locating, the rag bolts 3 can be better kept in a vertical state, the problem that the rag bolts 3 incline due to the fact that the rag bolts 3 are impacted easily in casting concrete is reduced, the rag bolts 3 are buried in the concrete vertically, and the steel column is convenient to fix and install.

Referring to fig. 1 and 2, a through hole 11 is formed in the positioning ring 1, a round hole 21 is formed in the auxiliary ring 2, and the through holes 11 and the round holes 21 are arranged in a one-to-one correspondence manner; the through holes 11 and the round holes 21 are used for allowing the anchor bolts 3 to pass through, so that the positioning ring 1 and the auxiliary ring 2 are sleeved on the anchor bolts 3, and the positioning ring 1 and the auxiliary ring 2 are convenient to limit the anchor bolts 3.

Referring to fig. 1, a plurality of support frames 4 are arranged below the positioning ring 1, the support frames 4 are uniformly distributed around the axis of the positioning ring 1, the support frames 4 are used for supporting the positioning ring 1, the positioning ring 1 can be positioned in the middle of the anchor bolt 3, and the positioning ring 1 is convenient for limiting the anchor bolt 3.

Referring to fig. 1, the support frame 4 includes a cross bar 41 and support bars 42 fixedly connected to both ends of the cross bar 41, respectively, and the length direction of the cross bar 41 is the same as the radius direction of the positioning ring 1; the cross bar 41 is attached to the lower surface of the positioning ring 1, and the support bar 42 supports the cross bar 41, so that the cross bar 41 can support the positioning ring 1.

Referring to fig. 1, a center frame 43 is further arranged between the positioning ring 1 and the auxiliary ring 2, the center frame 43 is formed by welding four i-beams together, and the four i-beams are in a cross-shaped structure; the tip overlap joint of center rest 43 is in the upper surface of holding ring 1, and auxiliary ring 2 is located the upper surface of center rest 43 to make center rest 43 can support auxiliary ring 2, make auxiliary ring 2 can not laminate together with holding ring 1, be convenient for auxiliary ring 2 and holding ring 1 carry out spacingly to rag bolt 3 at different heights.

Referring to fig. 3, the lower extreme fixedly connected with fixed plate 31 of rag bolt 3, rag bolt 3 perpendicular to fixed plate 31's surface, still fixedly connected with a plurality of floor 32 on the fixed plate 31, the floor 32 is also fixedly connected on rag bolt 3's lateral wall simultaneously, a plurality of floor 32 are all with the distribution around rag bolt 3's axis, fixed plate 31 and a plurality of floor 32 constitute the base, the base can make rag bolt 3 stand up subaerial to make things convenient for rag bolt 3 initial placement, reduce rag bolt 3 and produce the probability of empting before spacing with holding ring 1, auxiliary ring 2 in place.

Referring to fig. 3 and 4, the anchor bolt 3 is further provided with a thread protection assembly 5, the thread protection assembly 5 comprises a sleeve 51 and a fixing sleeve 52, the sleeve 51 is wound with a protection cloth 6, the sleeve 51 is in threaded fit with the anchor bolt 3, and the fixing sleeve 52 is in threaded connection with the upper end of the anchor bolt 3; the loose end fixed connection of protection cloth 6 is on fixed cover 52, sleeve pipe 51 rotates on rag bolt 3 and descends until the in-process of laminating on holding ring 1, protection cloth 6 expands, and twine on rag bolt 3 along with the rotation of sleeve pipe 51, thereby accomplish the winding of protection cloth 6, protection cloth 6 covers the screw thread that rag bolt 3 is located holding ring 1 top part, can avoid pouring concrete in-process, mix clay construction to rag bolt 3, avoid causing the jam to the screw thread, after pouring concrete, dismantle down the protection cloth, just can directly use, need not clear up the screw thread of rag bolt 3, work efficiency has been improved, can also reduce the probability that the screw thread of rag bolt 3 receives the damage.

Referring to fig. 3 and 4, the sleeve 51 is further provided with a winding drum 53, the winding drum 53 is used for winding the protective cloth 6, a circle of convex rib 511 is fixedly connected to the sleeve 51, the winding drum 53 is sleeved on the sleeve 51, the upper end of the winding drum 53 is abutted to the convex rib 511, the lower end of the sleeve 51 is in threaded connection with a fixing ring 512, the fixing ring 512 is attached to the lower end of the winding drum 53, the fixing ring 512 is matched with the convex rib 511 to clamp and fix the winding drum 53, so that the winding drum 53 can be detachably mounted on the sleeve 51, the winding drum 53 is convenient to replace, and the protective cloth 6 cannot be directly used because the surface of the protective cloth 6 is adhered with concrete after the protective cloth 6 is used, and cleaning or disposable use is required, but the sleeve 51 and the fixing sleeve 52 can be repeatedly used, so that the winding drum 53 can be detached, the protective cloth 6 can be replaced conveniently, and the sleeve 51 and the fixing sleeve 52 can be reused conveniently.

Referring to fig. 4, a guide plate 54 is further provided on the sleeve 51, a long hole 541 which is the same as the guide plate 54 in length direction is provided on the guide plate 54, the end portion of the protection cloth 6 passes through the guide plate 54 and the fixing sleeve 52 to be fixedly connected with the guide plate 54, the guide plate 54 can guide the extension of the protection cloth 6, when the protection cloth 6 is wound on the anchor bolt 3 along with the rotation of the sleeve 51, the protection cloth 6 is wound on the anchor bolt 3 more smoothly, the generation of wrinkles is reduced, and therefore the protection cloth 6 can better protect the anchor bolt 3.

Referring to fig. 5, the fixing sleeve 52 is symmetrically cut off the connecting part, so that the fixing sleeve 52 is in a narrow strip shape, the fixing sleeve 52 is formed into a door shape formed by two vertical arc plates 522 of one transverse plate 521, two symmetrical yielding grooves 22 are formed in the inner wall of the round hole 21, and the yielding grooves 22 can be used for the two arc plates 522 on the fixing sleeve 52 to pass through, so that the auxiliary ring 2 can be sleeved on the anchor bolt 3 and limit the anchor bolt 3.

Referring to fig. 4, the lower ends of the arc plates 522 are fixedly connected with a pin plate 523, the lower ends of the pin plates 523 are integrally formed with elastic protrusions 524, the upper ends of the sleeves 51 are provided with annular slots 513, the axes of the slots 513 are coincident with the axes of the sleeves 51, the bottoms of the slots 513 are also provided with accommodating grooves 514, and the elastic protrusions 524 can be clamped into the accommodating grooves 514; the fixing sleeve 52 is connected with the sleeve 51, and the slot 513 is annular, so that the rotation of the sleeve 51 is not affected after the fixing sleeve 52 is connected with the anchor bolt 3 in a threaded manner, and the sleeve 51 can continue to rotate. The elastic protrusion 524 and the accommodating groove 514 cooperate to prevent the fixing sleeve 52 and the sleeve 51 from being easily separated after being inserted together, but the sleeve 51 is not influenced to be separated from the fixing sleeve 52.

The specific use process of the embodiment is as follows: the foundation bolts 3 are surrounded into an annular structure, and the diameter of the annular structure formed by the foundation bolts 3 is the same as the diameter of the installation position on the steel column; then the support frame 4 is installed, the positioning ring 1 is sleeved and installed, the anchor bolts 3 pass through the through holes 11 on the positioning ring 1, the positioning ring 1 limits the anchor bolts 3, the shape formed by the anchor bolts 3 cannot be deformed, then the thread protection assembly 5 is installed, the protection cloth 6 winds and wraps the threads of the part of the anchor bolts 3 on the positioning ring 1, the concrete is prevented from being constructed at the threads in the concrete pouring process, and the subsequent use of the anchor bolts 3 cannot be influenced; and the center frame 43 is installed, the auxiliary ring 2 is installed finally, the auxiliary ring 2 is matched with the positioning ring 1 to position and limit the foundation bolt 3, and the foundation bolt 3 cannot incline due to the flowing impact of concrete in the concrete pouring process.

Example two

The method for installing and positioning the foundation bolt 3 comprises the following steps:

step one: manufacturing a base; the fixing plate 31 is welded at the lower end of the anchor bolt 3, then the rib plates 32 are welded on the fixing plate 31 and the anchor bolt 3 at the same time, and the rib plates 32 are uniformly distributed around the anchor bolt 3, so that the manufacturing of the base is completed.

Step two: placing foundation bolts 3; the plurality of anchor bolts 3 are placed around the structure in a circular structure, and the diameter of the circular structure in the shape formed by the plurality of anchor bolts 3 is the same as the diameter of the annular structure formed by the installation positions on the steel column.

Step three: positioning of foundation bolts 3; the positioning device is arranged on the foundation bolt 3 to position the foundation bolt 3;

the use of the positioning device comprises the following steps:

(1) uniformly placing a plurality of supporting frames 4 around the axis of the annular structure formed by the foundation bolts 3;

(2) placing the positioning ring 1 on the support frame 4, and welding the positioning ring 1 and the support frame 4 together;

(3) the thread of the foundation bolt 3 is protected by using a thread protection component 5;

(4) hoisting the center frame 43, wherein the center of the center frame 43 is overlapped with the center of the positioning ring 1, and the end part of the center frame 43 is overlapped on the positioning ring 1;

(5) finally, the auxiliary positioning ring 1 is installed on the foundation bolt 3, and the auxiliary positioning ring 1 is lapped on the center frame 43;

step four: binding reinforcing steel bars; binding double-row double-layer steel bars is carried out, and the foundation bolts 3 are positioned between the double-layer steel bars, so that the foundation bolts 3 can be further fixed;

step five: pouring concrete; pouring the well stirred concrete until the concrete floods the positioning ring 1;

step six: disassembling the positioning device; curing of the concrete is performed first, and after the curing of the concrete is completed, the auxiliary ring 2, the center frame 43 and the screw thread protection assembly 5 are detached.

Through the above steps, the positioning and mounting of the foundation bolt 3 can be completed, the foundation bolt 3 can be in a shape required by a surrounding city, the foundation bolt 3 can be positioned through the positioning device, the circular structure of the surrounding city of the foundation bolt 3 can not be changed, the foundation bolt 3 can be limited through the two points of the positioning ring 1 and the auxiliary ring 2, the verticality of the foundation bolt 3 can be limited, the foundation bolt 3 can be impacted by concrete flowing in the process of pouring concrete, the positioning device can reduce the probability that the foundation bolt 3 moves and inclines, the stable mounting of the foundation bolt 3 is ensured, and the fixed mounting of a steel column is facilitated.

The use process of the thread protection component 5 is as follows: (1) sleeving the upper end of the anchor bolt 3 with the fixed sleeve 52 and the sleeve 51 which are connected together; (2) after the fixed sleeve 52 and the sleeve 51 are rotated, the sleeve 51 is continuously rotated after the fixed sleeve 52 is in threaded connection with the upper end of the foundation bolt 3, the sleeve 51 is separated from the fixed sleeve 52, and the sleeve 51 is rotated to move downwards; (3) the protection cloth 6 wound on the sleeve 51 is unfolded along with the rotation of the sleeve 51, and is wound on the anchor bolt 3 along with the rotation of the sleeve 51 to cover the threads of the anchor bolt 3; (4) rotating the sleeve 51 until it approaches the positioning ring 1; (5) after the concrete curing is completed, the fixing sleeve 52 is rotated, the fixing sleeve 52 is disassembled, and then the protective cloth 6 is disassembled; (6) the sleeve 51 is then removed by rotation; (7) when the screw thread protection component 5 needs to be reused, the fixed ring 512 is taken down, the winding drum 53 is disassembled, and a new winding drum 53 wound with the protection cloth 6 is replaced; (8) the end of the protective cloth 6 is led out through the strip holes 541 on the guide plate 54 and fixedly connected with the fixing sleeve 52.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (6)

1. The utility model provides a major diameter steel column rag bolt installs annular positioner which characterized in that: comprises a positioning ring (1) and a plurality of supporting frames (4);

the positioning ring (1) is provided with a plurality of through holes (11) through which foundation bolts (3) can pass, and the through holes (11) are uniformly distributed around the axis of the positioning ring (1);

the diameter of a circular structure formed by the circle centers of the through holes (11) is the same as that of a circular structure formed by the embedded positions of the foundation bolts (3);

the plurality of supporting frames (4) are uniformly distributed around the axis of the positioning ring (1); the support frame (4) comprises a cross rod (41) and support rods (42) fixedly connected to two ends of the cross rod (41);

the transverse rod (41) supports the positioning ring (1), and the lower end of the supporting rod (42) is fixedly connected to the ground, so that the supporting frame (4) is erected on the ground;

the foundation bolt (3) is also provided with a thread protection component (5), and the thread protection component (5) comprises a sleeve (51) and a protection cloth (6) connected with the sleeve (51);

the sleeve (51) is in threaded fit with the anchor bolt (3), the sleeve (51) is attached to the upper surface of the positioning ring (1), and the protective cloth (6) is wound on the part, above the positioning ring (1), of the anchor bolt (3);

one end of the protective cloth (6) is connected with the sleeve (51), the other end of the protective cloth (6) is fixedly connected with the fixing sleeve (52), and the fixing sleeve (52) is sleeved at the upper end of the foundation bolt (3);

the protective cloth (6) is wound on the sleeve (51);

the sleeve (51) is further sleeved with a winding drum (53), a circle of convex edges (511) are integrally formed on the outer wall of the sleeve (51), the upper end of the winding drum (53) is abutted against the lower surface of the convex edges (511), the lower end of the winding drum (53) is provided with a fixing ring (512) which is in threaded connection with the sleeve (51), and the fixing ring (512) is abutted against the lower end of the winding drum (53);

the fixing sleeve (52) is symmetrically cut off, so that the fixing sleeve (52) is in a narrow strip shape, and the fixing sleeve (52) is in a door shape formed by two vertical arc plates (522) of one transverse plate (521);

the lower ends of the arc plates (522) are fixedly connected with plug plates (523), elastic protrusions (524) are integrally formed at the lower ends of the plug plates (523), annular slots (513) are formed in the upper ends of the sleeves (51), the axes of the slots (513) are coincident with the axes of the sleeves (51), containing grooves (514) are formed in the bottoms of the slots (513), and the elastic protrusions (524) can be clamped into the containing grooves (514);

threads are also arranged in the fixing sleeve (52), and the fixing sleeve (52) is connected with the upper end of the foundation.

2. The large diameter steel stud mounting ring positioning device of claim 1, wherein: an auxiliary ring (2) is arranged above the positioning ring (1), the size of the auxiliary ring (2) is the same as that of the positioning ring (1), and the axes of the auxiliary ring (2) and the positioning ring (1) are coincident;

the auxiliary ring (2) is provided with round holes (21), and the round holes (21) and the through holes (11) are arranged in one-to-one correspondence.

3. The large diameter steel stud mounting ring positioning device of claim 2, wherein: the lower extreme of rag bolt (3) still is equipped with the base, and the base includes bottom plate and a plurality of floor (32), and on the lower extreme fixed connection bottom plate of rag bolt (3), floor (32) were fixed on the bottom plate while floor (32) were also fixed on rag bolt (3), and a plurality of floor (32) are around rag bolt (3) evenly distributed.

4. The method for installing and positioning the foundation bolt is characterized by comprising the following steps of: an annular positioning device for installing large-diameter steel column foundation bolts according to any one of claims 1-3, wherein the method for installing and positioning the foundation bolts (3) comprises the following steps:

step one: manufacturing a base; firstly, welding a fixed plate (31) and a rib plate (32) at the lower end of an anchor bolt (3) to finish the manufacture of a base;

step two: placing foundation bolts (3); surrounding the foundation bolts (3) with the base in an annular shape, and uniformly distributing the foundation bolts (3);

step three: positioning of foundation bolts (3); the anchor bolt (3) is annularly positioned through the positioning ring (1) and the auxiliary ring (2), and threads of the anchor bolt (3) are protected by using the thread protection assembly (5);

step four: binding reinforcing steel bars; binding double-layer double-row steel bars, wherein the base is positioned between the double-layer steel bars;

step five: pouring concrete; until the concrete submerged positioning ring (1) stops;

step six: disassembling the positioning device; curing the concrete, and disassembling the auxiliary ring (2) and the center frame (43) after the concrete is solidified.

5. The method for installing and positioning the foundation bolt (3) according to claim 4, wherein: in the third step, before the positioning ring (1) is installed, the supporting frames (4) are installed first, and the supporting frames (4) are uniformly distributed around the axis of the positioning ring (1);

when the support frames (4) are installed, two support rods (42) belonging to the same support frame (4) are symmetrically installed on the inner side and the outer side of the positioning ring (1), then the cross rod (41) is installed, and finally the positioning ring (1) is placed on the cross rod (41) to complete the installation of the positioning ring (1);

the center frame (43) is installed, the center of the center frame (43) is overlapped with the axis of the locating ring (1), the end part of the center frame (43) is overlapped on the upper surface of the locating ring (1), the auxiliary ring (2) is located right above the locating ring (1), and the auxiliary ring (2) is attached to the upper surface of the center frame (43).

6. The method for installing and positioning the foundation bolt (3) according to claim 4, wherein: in the third step, before the positioning ring (1) is installed and the auxiliary ring (2) is installed, the protection cloth (6) needs to be wound on the foundation bolt (3) to protect the threads of the foundation bolt (3):

the protection sleeve and the fixing sleeve (52) are sleeved on the foundation bolt (3) together, the sleeve (51) and the protection sleeve are rotated, the sleeve (51) is rotated, the sleeve (51) moves downwards, the protection cloth (6) is wound on the sleeve (51), the end part of the protection cloth (6) is fixedly connected with the fixing sleeve (52), the fixing sleeve (52) is fixed, and then the protection cloth (6) is wound on the foundation bolt (3) along with the rotation of the sleeve (51).

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