CN111719607A - A method and device for precise positioning and vertical adjustment of a steel pipe column - Google Patents

Abstract

The invention relates to a method and device for precise positioning and vertical adjustment of a steel pipe column, comprising a base, a vertical column, an upper and lower horizontal support, and an upper and lower vertical support. Jacks are installed on the three mounting seats, movable limit steel plates are installed at the front end of the three mounting seats, a bubble level is installed on both sides of the upper platform, and hydraulic adjustable supports are installed at the lower part of the four columns. The lower part of the adjustable support is connected with the base. Use a bubble level to observe the level of the steel bracket, and then use a hydraulic adjustable support to quickly and accurately level the steel bracket; there is a movable limit steel plate to more accurately limit the steel column to the design coordinate center, reducing the The difficulty of fine-tuning the jack in the later stage is solved; the precast concrete base is placed on the ground on both sides of the pile hole to provide a stable working plane for the fixing of the steel support, and the base and the vertical steel support can be reused. The installation of the steel pipe column is quicker and more precise.

Description

A method and device for precise positioning and vertical adjustment of a steel pipe column

technical field

The invention relates to the technical field of building construction, in particular to a method and device for precise positioning and vertical adjustment of a steel pipe column.

Background technique

The biggest difficulty of the reverse method one-pillar-one-column process is how to accurately insert the steel pipe column before the initial setting of the core concrete (about 4 hours) to complete the installation. The current technology is to use the vertical adjustment guide frame to locate the steel pipe column, and use the jack installed on the vertical adjustment guide frame to fine-tune the verticality of the steel pipe column. It is relatively large, so that the center of the steel pipe column is not accurate enough when it is hoisted down, and the inclination is large, which increases the difficulty of using the jack in the later stage.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a method and device for precise positioning and vertical adjustment of a steel pipe column, which can make the vertical adjustment of the steel pipe column faster and more accurate when hoisting and lowering the pipe.

In order to realize the above-mentioned precise positioning and vertical adjustment method of the steel pipe column, the method adopted in the present invention is as follows:

1). Drill a pile hole in the soil body, and place a base on the ground after the hole of the pile hole is flat. The base is prefabricated with concrete. For the embedded parts connected to the lower part of the bracket, there is a middle hole in the middle of the base for the steel pipe column to pass through. There are 4 hydraulic adjustable supports at the bottom of the platform and the vertical steel support column, which are used to fine-tune the level of the support, and observe the level of the vertical steel support through the bubble leveling of the two bubble levels provided on the upper platform of the support;

2). Each platform of the vertical steel bracket is provided with 3 jacks and 3 movable limit steel plates. The 3 movable limit steel plates are respectively arranged below the 3 jacks, and the inner end of the 3 movable limit steel plates The size of the enclosed circle is adapted to the outer diameter of the steel pipe column, and the jack and movable limit steel plate are used for the centering adjustment of the steel pipe column and the fixing of the steel pipe column;

3). The vertical control system uses the inclinometer tube to measure the verticality of the steel pipe column. Before the steel pipe column is hoisted, the inclinometer tube is fixed on the outer surface of the steel pipe column with a hoop, and a vertical induction probe is installed in the inclinometer tube to ensure that it is compatible with the steel pipe column. The axis of the steel pipe column is parallel; if the movable limit steel plate blocks the inclinometer pipe, a gap is opened on the movable limit steel plate corresponding to the position of the inclinometer pipe;

4). When the steel pipe column is hoisted, the steel pipe column will slowly descend through the precise positioning position between the three movable limit steel plates. After the steel pipe column is inserted into the specified elevation, there is still about 1 meter left to start the preliminary coordinate and verticality correction. , and adjust the direction of the steel pipe column according to the pre-welded corbels on the steel pipe column, and finally insert it to the specified elevation, and use the jack to perform fine-tuning and precise positioning to complete the hoisting of the steel pipe column in the entire reverse working area;

5). Pour the supporting pile material into the pile hole, so that the poured supporting pile material is buried in the lower part of the steel pipe column; and when it is necessary to pour the filler into the inner cavity of the steel pipe column, pour the filler into the inner cavity of the steel pipe column, and then put the filling material into the inner cavity of the steel pipe column. Filling is poured between the outer wall and the hole wall of the pile hole; in the process of filling the filling, the verticality of the steel pipe column is detected by the inclinometer pipe. vertical;

6). Remove the vertical steel bracket and complete the construction of the steel pipe column.

The present invention adopts the device for the precise positioning and vertical adjustment of the steel pipe column, which includes a base, four uprights enclosing a quadrangle, and an upper horizontal support, an upper vertical support, a lower horizontal support and a lower vertical support connecting the four vertical supports. The support and the upper vertical support form the upper platform, the lower horizontal support and the lower vertical support form the lower platform, the upper horizontal support and the upper vertical support are staggered and form an upper through hole for the steel pipe column to pass through in the middle, and the lower horizontal support and the lower vertical support The vertical supports are staggered to form a lower through hole for the steel pipe column to pass through. The upper through hole and the lower through hole of the steel pipe column are facing each other. , jacks are installed on the three mounting seats, the telescopic direction of the jacks is facing the steel pipe column, the front ends of the three mounting seats are provided with movable limit steel plates, and the front edges of the three movable limit steel plates on the same platform The diameter of the circle is matched with the outer diameter of the steel pipe column, the length of the movable limit steel plate is less than one-third of the circumference of the steel pipe column, and there are 1 air bubbles on both sides of the upper through hole on the upper platform. For the spirit level, a hydraulic adjustable support is installed at the lower part of the four uprights, and the lower part of the hydraulic adjustable support is connected with the base.

Further, the upper platform includes a circular table panel fixed on the upper horizontal bracket and the upper vertical bracket, the lower platform includes a circular table panel fixed on the lower horizontal bracket and the lower vertical bracket, and the three installations The seat and three jacks are mounted on the round and round table tops.

The movable limit steel plate includes a transverse steel plate and a longitudinal steel plate that are integrally fabricated and form right angles to each other. The outer corner of the connection between the transverse steel plate and the longitudinal steel plate is movably connected to the mounting seat through hinges, and the lower part of the front end of the mounting seat is provided with a vertical limit position. When the baffle is used, the transverse steel plate and the longitudinal steel plate are turned down around the hinge, the longitudinal steel plate touches the top limit baffle and is blocked, the transverse steel plate points horizontally to the steel pipe column, and the steel pipe column is formed between the three transverse steel plates on the same platform. The appropriate bore diameter provides precise downtube for the steel column; when not in use, the transverse and longitudinal steel plates are turned up around the hinge.

Further, the front end of the transverse steel plate is set as a concave arc surface.

Further, the base is formed by movably splicing two prefabricated half-side blocks of concrete.

Further, diagonal braces are arranged between the upper platform and the lower platform.

Further, the bubble level is arranged on the upper upper platform at the intersection of the horizontal bar and the vertical bar.

Further, the embedded parts are bolts or square steel pipes. When the embedded parts are bolts, the lower part of the hydraulic adjustable support is connected with the embedded parts through the screw holes provided. When the embedded part is a square steel pipe, the lower part of the hydraulic adjustable support is inserted into the square steel pipe.

Another structural form of the movable limit steel plate of the present invention: the movable limit steel plate includes an adjustable limit steel plate, the adjustable limit steel plate includes a plurality of positioning holes arranged on the mounting seat, and the adjustable limit steel plate passes through screws. Fixed on the mount. The distance between the limit steel plates can be adjusted according to the outer diameter of the steel pipe column.

The beneficial effects of the present invention are as follows: 1. A hydraulic adjustable support and a bubble level are provided, the level of the steel support is observed through the bubble level, and then the hydraulic adjustable support is used for leveling, which can be convenient, fast and accurate. The steel bracket is used for leveling; 2. On the basis of the jack, there is also a movable limit steel plate, which can more accurately limit the steel pipe column to the design coordinate center, which greatly reduces the difficulty of fine-tuning the jack in the later stage; 3. A prefabricated concrete base is placed on the ground on the side to provide a stable working plane for the fixing of the steel support. The base and the vertical steel support can be reused. The invention makes the installation of the steel pipe column more rapid and accurate, and solves the biggest technical problem of the construction of one pile and one column in the reverse method.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the top view structure schematic diagram of concrete base of the present invention;

Fig. 3 is a top-view structural schematic diagram of an embodiment of the present invention;

4 is a schematic structural diagram of a movable limit steel plate according to an embodiment of FIG. 3;

FIG. 5 is a top-view structural schematic diagram of another embodiment of the present invention;

Fig. 6 is an enlarged view of part A of Fig. 1;

FIG. 7 is a schematic structural diagram of another embodiment of the movable limit steel plate in FIG. 5 .

Detailed ways

Please refer to Figures 1-7, the present invention is about the precise positioning and vertical adjustment method of the steel pipe column:

1). Drill a pile hole 1 in the soil, and place a base 8 on the ground after the hole of the pile hole 1 is leveled. The base 8 is prefabricated with concrete. An embedded part 80 connected to the lower part of the vertical steel bracket is embedded in advance, and a middle hole corresponding to the pile hole 1 for the steel pipe column 5 to pass through is left in the middle of the base 8; the embedded part 80 can be a bolt or a square shape. Steel Pipe. When the embedded part 80 is a bolt, the lower part of the hydraulically adjustable support 7 is connected with the embedded part 80 through a screw hole provided therewith using a nut. When the embedded part 80 is a square steel pipe, the lower part of the hydraulically adjustable support 7 is inserted into the square steel pipe. The base 8 is formed by splicing two prefabricated concrete half-side blocks movably. The vertical steel support with a height of 3 meters is used. The vertical steel support is divided into two platforms: the upper platform 2 and the lower platform 3. There are 4 hydraulic adjustable supports at the bottom of the vertical steel support column for fine-tuning the level of the support. And observe the level of the vertical steel bracket through the bubble leveling of the two bubble levels 9 provided on the upper platform 2 of the bracket;

2). Each platform of the vertical steel bracket is provided with 3 jacks 4 and 3 movable limit steel plates 6. The 3 movable limit steel plates 6 are respectively arranged below the 3 jacks 4, and the 3 movable limit steel plates The size of the circle enclosed by the inner end of the steel pipe 6 is adapted to the outer diameter of the steel pipe column 5, and the jack 4 and the movable limit steel plate 6 are used for the centering adjustment of the steel pipe column 5 and the fixing of the steel pipe column 5;

3). The vertical control system uses the inclinometer pipe 12 to measure the verticality of the steel pipe column 5. Before the steel pipe column 5 is hoisted, the inclinometer pipe 12 is fixed on the outer surface of the steel pipe column 5 with the hoop 14. The vertical induction probe is used to ensure that it is parallel to the axis of the steel pipe column 5; if the movable limit steel plate 6 blocks the inclinometer tube 12, a gap is opened on the movable limit steel plate 6 corresponding to the position of the inclinometer tube 12, as shown in Figure 2 ;

4). When the steel pipe column 5 is hoisted, the steel pipe column 5 will go down slowly through the precise positioning position between the three movable limit steel plates 6. After the steel pipe column 5 is inserted into the specified elevation, there is still about 1 meter left to start the preliminary coordinates. and verticality correction, and adjust the direction of the steel pipe column 5 according to the pre-welded corbel on the steel pipe column 5, and finally insert it to the specified elevation, use the jack 4 to perform fine adjustment and precise positioning to complete the lifting of the steel pipe column 5 in the entire counteraction area;

5). Pour the supporting pile material into the pile hole 1, so that the poured supporting pile material is buried in the lower part of the steel pipe column 5; Then, the filler is filled between the outer wall of the steel pipe column 5 and the hole wall of the pile hole 1; during the filling process, the verticality of the steel pipe column 5 is detected by the inclinometer tube 10. If the steel pipe column 5 is inclined, each jack 4 is used to Adjust the verticality of the steel pipe column 5 so that the steel pipe column 5 is vertical;

6). Remove the vertical steel bracket and complete the construction of the steel pipe column 5.

As shown in FIGS. 1-5 , the device for using the method for accurately positioning the vertical adjustment of the steel pipe column of the present invention includes a base 8 , four uprights 10 enclosing a quadrangle, and an upper horizontal bracket 22 and an upper vertical bracket 23 connecting the four uprights 10 . , The lower horizontal bracket and the lower vertical bracket, the upper horizontal bracket 22 and the upper vertical bracket 23 constitute the upper platform 2, the lower horizontal bracket and the lower vertical bracket constitute the lower platform 3, and the upper horizontal bracket 22 and the upper vertical bracket 23 are staggered and enclosed in the middle. The upper through hole for the steel pipe column 5 to pass through, the lower horizontal support and the lower vertical support are staggered to form the lower through hole for the steel pipe column 5 to pass through, the upper through hole and the lower through hole of the steel pipe column are opposite, the upper platform 2 and the lower layer The platform 3 is respectively provided with three mounting seats 20 and 30 that are evenly distributed at an angle of 120 degrees. The three mounting seats 20 and 30 are all mounted with a jack 4. The extension direction of the jack 4 is facing the steel pipe column 5. The front end of each mounting seat 20 is provided with a movable limit steel plate 6, and the circular diameter enclosed by the front edges of the three movable limit steel plates 6 on the same platform matches the outer diameter of the steel pipe column 5. The movable limit steel plate 6 The length of the steel pipe column 5 is less than one third of the circumference of the circumference of the steel pipe column 5. A bubble level 9 is provided on both sides of the upper through hole on the upper platform 2, and a hydraulic adjustable support 7 is installed at the lower part of the four columns 10. The lower part of the adjusting support 7 is connected with the base 8 .

As shown in Figure 1, Figure 3, Figure 5 and Figure 7, in one embodiment of the present invention, the upper platform 2 includes a circular table panel 24 fixed on the upper horizontal support 22 and the upper vertical support 23, and the lower platform 3 includes a The circular table top 25 on the lower horizontal support and the lower vertical support, the three mounting bases 20 and 30 and the three jacks 4 are all mounted on the circular table top 24 and the circular table top 25 . The length of the movable limit steel plate 6 is close to one third of the circumference of the steel pipe column 5 , and the length of the three movable limit steel plates 6 is close to the surrounding steel pipe column 5 .

As shown in FIGS. 4 and 5 , in another embodiment of the present invention, one mounting seat 20, 30 is directly mounted on the upper horizontal support 22 and the lower horizontal support, and the two mounting seats 20, 30 are welded to the upper horizontal support by triangular plates 22 and the upper vertical support 23, the length of the movable limit steel plate 6 is 30mm-60mm. Such as 40mm, 50mm.

As shown in FIG. 6 and FIG. 7 , the movable limit steel plate 6 of the present invention includes a transverse steel plate 61 and a longitudinal steel plate 62 that are integrally fabricated and form a right angle with each other. Vertical limit baffles 21 and 31 are provided at the front ends of the mounting seats 20 and 30, and the lower parts of the front ends of the mounting seats 20 and 30. When in use, the transverse steel plate 61 and the longitudinal steel plate 62 are turned down around the hinge 60, and the longitudinal steel plate 62 The top limit baffles 21 and 31 are blocked, the horizontal steel plate 61 points horizontally to the steel pipe column 5, and the three transverse steel plates 61 on the same platform form an aperture suitable for the steel pipe column 5 to supply the steel pipe column 5 with precise down pipe; do not use , the transverse steel plate 61 and the longitudinal steel plate 62 are turned upward around the hinge 60 . The front end of the transverse steel plate 61 is set as a concave arc surface 63 . A diagonal brace 11 is arranged between the upper platform 2 and the lower platform 3 . The bubble level 9 is provided on the upper platform 2 at the intersection of the horizontal bar 22 and the vertical bar 23 . As shown in the embodiment of FIG. 3 , two bubble levels 9 are respectively arranged on the upper part of the intersecting part of the horizontal bar 22 and the vertical bar 23 and a triangular plate. As shown in the embodiment of FIG. 3 , two bubble levels 9 are respectively arranged on the circular table plate 24 .

In yet another embodiment of the present invention, the movable limit steel plate 6 includes an adjustable limit steel plate, the adjustable limit steel plate includes a plurality of positioning holes arranged on the mounting seats 20 and 30, and the adjustable limit steel plate is fixedly installed on the mounting seat 20 and 30 by screws. Mounting seats 20 and 30 above. The distance between the limit steel plates can be adjusted according to the outer diameter of the steel pipe column.

The above embodiments are only to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. On the premise of not departing from the design spirit of the present invention, various modifications and variations of the technical solutions of the present invention made by ordinary engineers and technicians in the art Improvements should all fall within the protection scope determined by the claims of the present invention.

Claims (10)

1. A method for accurately positioning and adjusting verticality of a steel pipe column comprises the following steps:

1) drilling a pile hole (1) in a soil body, placing a base (8) on the ground with a smooth hole opening of the pile hole (1), prefabricating the base (8) by adopting concrete, arranging a double-layer bidirectional steel bar (13) in the base (8), embedding an embedded part (80) connected with the lower part of a verticality adjusting steel support in the base (8), and reserving a middle hole corresponding to the pile hole (1) and allowing a steel pipe column (5) to penetrate through in the middle of the base (8); the method is characterized in that a vertical adjustment steel support with the height of 3 meters is adopted, the vertical adjustment steel support is divided into an upper platform (2) and a lower platform (3), 4 hydraulic adjustable supports are arranged at the bottom of an upright post of the vertical adjustment steel support and used for finely adjusting the level of the supports, and the level condition of the vertical adjustment steel support is observed and adjusted through the bubble leveling of 2 bubble levels (9) arranged on the upper platform (2) of the support;

2) each platform of the vertical steel adjusting support is simultaneously provided with 3 jacks (4) and 3 movable limiting steel plates (6), the 3 movable limiting steel plates (6) are respectively arranged below the 3 jacks (4), the circumferential size enclosed by the inner ends of the 3 movable limiting steel plates (6) is matched with the outer diameter size of the steel pipe column (5), and the jacks (4) and the movable limiting steel plates (6) are used for centering adjustment of the axis of the steel pipe column (5) and fixing of the steel pipe column (5);

3) the vertical control system adopts an inclinometer (12) to measure the verticality of the steel pipe column (5), before the steel pipe column (5) is hoisted, the inclinometer (12) is fixedly arranged on the outer side surface of the steel pipe column (5) by adopting a hoop (14), a vertical induction probe is arranged in the inclinometer (12) and used for ensuring that the inclinometer (12) is parallel to the axis of the steel pipe column (5), if the inclinometer (12) is blocked by a movable limiting steel plate (6), and a notch is formed in the movable limiting steel plate (6) corresponding to the position of the inclinometer (12);

4) when the steel pipe column (5) is hoisted, the steel pipe column (5) is slowly lowered through the accurate positioning positions among the 3 movable limiting steel plates (6), preliminary coordinate and verticality correction is started when the steel pipe column (5) is inserted into a specified elevation and remains about 1 m, the direction of the steel pipe column (5) is adjusted according to a bracket welded on the steel pipe column (5) in advance, and finally the steel pipe column is inserted into the specified elevation, and fine adjustment and accurate positioning are carried out by using a jack (4) so as to finish hoisting of the steel pipe column (5) in the whole reverse working area;

5) pouring supporting pile materials into the pile hole (1) so that the poured supporting pile materials are buried at the lower part of the steel pipe column (5); filling filler into the inner cavity of the steel pipe column (5) under the condition that the filler needs to be filled into the inner cavity of the steel pipe column (5), and then filling the filler between the outer wall of the steel pipe column (5) and the hole wall of the pile hole (1); in the filling process, detecting the perpendicularity of the steel pipe column (5) by using an inclinometer (12), and if the steel pipe column (5) inclines, adjusting the perpendicularity of the steel pipe column (5) by using each jack (4) to enable the steel pipe column (5) to be vertical;

6) and dismantling the verticality adjusting steel support to complete the construction of the steel pipe column (5).

2. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 1 comprises a base (8), four columns (10) which are enclosed into a quadrangle, and an upper horizontal support (22), an upper vertical support (23), a lower horizontal support and a lower vertical support which are connected with the four columns (10), wherein the upper horizontal support (22) and the upper vertical support (23) form an upper platform (2), the lower horizontal support and the lower vertical support form a lower platform (3), the upper horizontal support (22) and the upper vertical support (23) are staggered and enclose an upper through hole for the steel pipe column (5) to pass through in the middle, the lower horizontal support and the lower vertical support are staggered to form a lower through hole for the steel pipe column (5) to pass through, and the upper through hole and the lower through hole of the steel pipe column are right opposite, and is characterized in that: three mounting seats (20, 30) which are uniformly distributed into 120-degree angles are respectively arranged on the upper-layer platform (2) and the lower-layer platform (3), jacks (4) are respectively arranged on the three mounting seats (20, 30), the telescopic direction of ejector rods of the jacks (4) is right opposite to the steel pipe column (5), the front ends of the three mounting seats (20) are provided with movable limiting steel plates (6), the circular diameter formed by the front end edges of the three movable limiting steel plates (6) of the same platform is matched with the outer diameter of the steel pipe column (5), the length of each movable limiting steel plate (6) is less than one third of the circumference of the steel pipe column (5), two sides of the upper layer of through holes on the upper layer of platform (2) are respectively provided with 1 bubble level meter (9), the lower parts of the four upright posts (10) are provided with hydraulic adjustable supports (7), and the lower parts of the hydraulic adjustable supports (7) are connected with the base (8).

3. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 2 is characterized in that: the upper platform (2) comprises a circular table board (24) fixed on an upper transverse support (22) and an upper longitudinal support (23), the lower platform (3) comprises a circular table board (25) fixed on a lower transverse support and a lower longitudinal support, and three mounting seats (20, 30) and three jacks (4) are mounted on the circular table board (24) and the circular table board (25).

4. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 2 is characterized in that: the movable limiting steel plate (6) comprises a transverse steel plate (61) and a longitudinal steel plate (62) which are integrally manufactured and mutually form a right angle, the outer connecting angle positions of the transverse steel plate (61) and the longitudinal steel plate (62) are movably connected to the front ends of the mounting seats (20 and 30) through hinges (60), vertical limiting baffles (21 and 31) are arranged on the lower portions of the front ends of the mounting seats (20 and 30), when the movable limiting steel plate is used, the transverse steel plate (61) and the longitudinal steel plate (62) are turned downwards around the hinges (60), the longitudinal steel plate (62) abuts against the limiting baffles (21 and 31) to be blocked, the transverse steel plate (61) horizontally points to the steel pipe column (5), and an aperture matched with the steel pipe column (5) is formed between the three transverse steel plates (61) of the same platform to supply accurate lower pipes of the steel pipe column (5; when not in use, the transverse steel plate (61) and the longitudinal steel plate (62) are turned upwards around the hinge (60).

5. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 4 is characterized in that: the front end of the transverse steel plate (61) is provided with an inwards concave cambered surface (63).

6. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 2 is characterized in that: the movable limiting steel plate (6) comprises a plurality of adjusting limiting steel plates, the adjusting limiting steel plates comprise a plurality of positioning holes formed in the mounting seats (20 and 30), and the adjusting limiting steel plates are fixedly mounted on the mounting seats (20 and 30) through screws.

7. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 2 is characterized in that: the base (8) is formed by movably splicing two half blocks prefabricated by concrete.

8. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 2 is characterized in that: and an inclined strut (11) is arranged between the upper-layer platform (2) and the lower-layer platform (3).

9. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 2 is characterized in that: the bubble level meter (9) is arranged on the upper-layer platform (2) at the cross part of the cross rod (22) and the vertical rod (23).

10. The device adopting the steel pipe column accurate positioning and verticality adjusting method according to claim 2 is characterized in that: the embedded part (80) is a bolt or a square steel pipe.

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