CN112962668A

CN112962668A - Working platform for self-weight sinking type steel pipe column construction and using method thereof

Info

Publication number: CN112962668A
Application number: CN202110181319.9A
Authority: CN
Inventors: 张功; 王秋生; 王贺旺; 凌立静; 王登寿; 杨超; 胡祖军; 郝志刚; 曹帅; 吴立山; 王超
Original assignee: Beijing Uni Construction Group Co Ltd
Current assignee: Beijing Uni Construction Group Co Ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-06-15
Anticipated expiration: 2041-02-09
Also published as: CN114922225B; CN114908803B; CN114922225A; CN114908803A; CN112962668B

Abstract

The invention relates to a working platform for self-weight sinking type steel pipe column construction and a using method thereof. Through this setting mode, can adjust the distance between first pair of middle part and the second pair of middle part according to steel-pipe column and engineering parameter, and then the size of control moment of torsion for first adjustment mechanism/second adjustment mechanism can realize the straightness's that hangs down to the steel-pipe column regulation through exerting less effort.

Description

Working platform for self-weight sinking type steel pipe column construction and using method thereof

Technical Field

The invention relates to the technical field of underground engineering construction, in particular to a working platform suitable for self-weight sinking type steel pipe column construction and a using method thereof.

Background

The cover and excavation method is gradually popularized in subway station engineering due to the characteristics that the cover and excavation method can effectively reduce the interference to the normal life of a city, the influence on ground traffic and the influence on adjacent buildings. In the station engineering constructed by the cover-excavation top-down method, steel pipe column pouring concrete is generally adopted as a permanent middle upright post and finally bears the vertical load transmitted by the main longitudinal beam. The construction method of the steel pipe column mainly adopts an HPE hydraulic vertical insertion method. The HPE hydraulic vertical insertion method is characterized in that an empty steel pipe column is placed to a designed elevation through an HPE hydraulic insertion instrument and then concrete pouring is carried out, and the perpendicularity of the steel pipe column is controlled through the HPE hydraulic insertion instrument. But the HPE hydraulic vertical insertion method uses machines and equipment with high cost, long insertion time, high noise of a pressure device and high requirements on construction sites. The gravity self-sinking type steel pipe column can be adopted in the prior art, the site requirement can be reduced, the construction period is shortened, and the cost is reduced, but the control on the verticality of the gravity self-sinking type steel pipe column is the main problem faced by the current engineering.

For example, chinese patent publication No. CN100537905C discloses a construction process of a reverse method one column one pile and a correction device thereof. Specifically, the correction device comprises a steel casing arranged on a concrete floor. The bottom of the steel protective cylinder is matched with a correction support, and the upper part of the steel protective cylinder is correspondingly provided with an outer correction support through a road base plate. The outer correction bracket and the inner correction bracket are symmetrically positioned and fixed. Adjusting bolts are respectively arranged on the outer correcting bracket and the inner correcting bracket. The technical scheme provided by the patent is that the axis position and the perpendicularity of the steel pipe column are corrected and fixed through an upper correcting device and a lower correcting device on the basis of ensuring the perpendicularity machining precision of the steel pipe column by using the mathematical basic principle of two points and one line.

For example, chinese patent publication No. CN110863495A discloses a steel pipe column insertion accurate positioning structure, which includes tool joints connecting the outer sides of steel pipe columns; the device also comprises a protective cylinder and a positioning platform which are arranged in the preset hole; one end of the protective cylinder is exposed out of the ground; the positioning platform is positioned above the orifice of the preset hole and is connected with the ground through the deformed steel bar. The positioning platform comprises a base, a support, a cross brace for stabilizing the support and an adjustable cross bar. One end of the bracket is connected with the base. The support is provided with a track cross rod with a sliding groove. The adjustable cross rod is connected with the track cross rod in a sliding way. The positioning platform is also provided with a positioning pin for limiting the steel pipe column. The locating pin sets up in adjustable horizontal pole. The support is provided with two adjustable cross rods, and the adjustable cross rods are provided with two positioning pins. One end of the steel pipe column can be positioned on the same horizontal plane through four positioning pins. In this patent document, the steel pipe column is positioned by a two-point positioning method: one point on the ground surface and one point in the preset hole. And positioning the top elevation of the steel pipe column and the ground position by the earth surface point by using the positioning platform. The positioning points in the preset holes are fixed with the concrete plane by utilizing the fixing pieces. The position of the steel pipe column can be continuously ensured only by adjusting the rail cross rod and matching with the vertical collimator during bottom sealing.

However, when the technical scheme provided by the above patent does not consider that the perpendicularity adjustment is performed by using the principle of two points and one line, the steel pipe column which is possibly hoisted due to unbalanced stress can generate a twisting state and an unstable state, and the twisting state and the unstable state can aggravate the accumulation of perpendicularity adjustment errors, so that the perpendicularity requirement can be met only by repeatedly adjusting for many times, and the defects that the labor allocation amount is too large, the system error superposition effect is obvious, the subjective uncertain factors of manual operation are too much and the like exist, and the installation of the steel pipe column with heavy self-weight is not facilitated. And to the installation mode that the steel-pipe column was transferred to gravity formula of sinking, the frictional force that the in-process verticality adjusting device that sinks at the steel-pipe column was to the effort of steel-pipe column and produced each other contact also can produce the damage to steel-pipe column self structure to influence the steel-pipe column speed of sinking.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a working platform for self-weight sinking type steel pipe column construction, which comprises a first supporting body and a base. A first pair of middle parts and a second pair of middle parts which are spaced from each other are arranged between the base and the top of the first supporting body. The first and/or second pair of intermediate portions move along the first support. Preferably, the first pair of intermediate portions and the second pair of intermediate portions are both disposed at the surface of the earth. In the prior art, in the process of adjusting the steel pipe column by adopting a two-point one-line mathematical principle, the perpendicularity of the steel pipe column is adjusted by generating torque through the height difference between the first pair of middle parts and the second pair of middle parts. The height difference determines the magnitude of the generated torque, and if the torque is too small, the first adjusting mechanism exerts larger acting force to push the steel pipe column, so that the steel pipe column partially bears the larger acting force. On the one hand, although the steel-pipe column belongs to the building element that the rigidity is stronger, and the local great effort that bears can not produce structural damage, under the condition that first adjustment mechanism and steel-pipe column area of contact are undersized, this kind of great effort can aggravate that steel-pipe column self atress is uneven, and then leads to steel-pipe column self to twist reverse and unstable. On the other hand, the application of a large force also causes a large wear on the first adjustment mechanism. According to the invention, the first pair of middle parts and/or the second pair of middle parts slide along the first support body, so that the distance between the first pair of middle parts and the second pair of middle parts can be adjusted according to the steel pipe column and engineering parameters, and further the torque is controlled, and the first adjusting mechanism can adjust the perpendicularity of the steel pipe column by applying a small acting force.

The invention also provides a working platform for the self-weight sinking type steel pipe column construction, which comprises a first support body and a base. A first pair of middle parts is arranged between the base and the top of the first supporting body. The first pair of middle portions is provided with at least one first adjustment mechanism. The end of the first adjusting mechanism is provided with at least one length element for increasing the stressed area. When using first adjustment mechanism to carry out spacingly to the position of steel-pipe column, under the circumstances of first adjustment mechanism and steel-pipe column area of contact undersize, steel-pipe column self atress is unbalanced can aggravated to first adjustment mechanism's effort, and then leads to steel-pipe column self to twist reverse and unstable. The non-stationary state of the steel pipe column naturally increases the difficulty of perpendicularity adjustment, and particularly, errors generated by the non-stationary state are cumulatively superposed. The invention improves the local stress state of the steel pipe column by increasing the stress area of the steel pipe column through the length element. In addition, the friction force between the plurality of length elements and the surface of the steel pipe column can also reduce the torsion degree of the steel pipe column caused by stress.

According to a preferred embodiment, the first pair of centrally disposed first adjustment mechanisms are disposed in a spaced apart relationship along the circumferential direction of the first support body. The plurality of length elements arranged at the end part of the first adjusting mechanism are radially distributed by taking the end part of the first adjusting mechanism as a center.

According to a preferred embodiment, the length element comprises at least one first section. One end and/or both ends of the first section are provided with a second section. The second section is used for abutting against the surface of the steel pipe column.

According to a preferred embodiment, the middle part of the first section is convex towards the side of the first adjustment mechanism. The convex part and the surface of the steel pipe column form a first space.

According to a preferred embodiment, the protruding portion of the first section is provided with a hinge. The hinge divides the first section into a first segment and a second segment. The first section and the second section rotate towards one side of the steel pipe column respectively. Or the first section and the second section rotate towards the side far away from the steel pipe column respectively.

According to a preferred embodiment, the first adjusting mechanism is provided with at least one push rod connected with the second section, the first section and/or the second section.

According to a preferred embodiment, the first segment and/or the second segment has a curvature. And under the condition that the first section and the second section respectively rotate towards the side far away from the steel pipe column, the hinge piece moves towards the side of the steel pipe column and does not contact the steel pipe column.

According to a preferred embodiment, the second section has an angle with the first/second section. The included angle is greater than 0 degrees and less than 180 degrees. The included angle is gradually reduced along the direction of the length element extending along the circumferential direction of the steel pipe column.

The invention further provides a using method of the working platform for the self-weight sinking type steel pipe column construction. The using method comprises the steps of lowering the steel pipe column and adjusting the verticality by using the working platform suitable for the self-weight sinking type steel pipe column construction.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of the work platform of the present invention;

FIG. 2 is a longitudinal partial structural view of the structure shown in FIG. 1;

FIG. 3 is a schematic structural view of a preferred embodiment of the console of the present invention;

FIG. 4 is a schematic structural view of a preferred embodiment of the base of the present invention;

FIG. 5 is a schematic view of a preferred embodiment of the length element of the present invention;

FIG. 6 is a schematic diagram of a preferred construction of the length element of the present invention;

FIG. 7 is a schematic view of a preferred embodiment of the present invention with the length elements covering the surface of the steel pipe column;

FIG. 8 is a schematic view of a preferred construction of the second section of the present invention;

FIG. 9 is a flow chart of the steps of a preferred embodiment of the method of using the work platform of the present invention.

List of reference numerals

1: first support 2: the operation table 3: support ring

4: first wale 5: second pair of middle portions 6: base seat

7: second support body 8: and (3) a guardrail (9): a first pair of middle parts

10: a plate body 11: second wale 12: first trough body

13: first adjustment mechanism 14: second groove 15: sliding body

16: a frame body 17: fourth wale 18: leveling device

19: opening 20: third wale 21: steel pipe column

22: length element 23: first segment 24: second section

25: first space 26: hinge 27: push rod

231: first segment 232: second section

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

Example 1

As shown in FIG. 1, the invention provides a working platform for self-weight sinking type steel pipe column construction. The working platform comprises a first support 1, an operating table 2 and a base 6. Preferably, the first support 1 may be a polygonal body or a cylindrical body. The first support 1 may be of a steel frame construction. For example, the first support 1 may be a quadrilateral, built up from a rectangular steel frame. For example, the first support body 1 is constructed from four H-section steels. The base 6 is located at the bottom of the first support 1. The side of the first support 1 opposite to the base 6 is provided with an operating table 2. Preferably, the operation table 2 may be provided on the top of the first support 1. The operation table 2 is movable toward the base 6 along the longitudinal direction of the first support 1. Preferably, the distance between the console 2 and the second pair of intermediate parts 5 is adjusted based on the length of the steel pipe column 21 and the engineering parameters. Through this setting mode, the beneficial effect who reaches is: aiming at the two-point type perpendicularity adjusting principle of the steel pipe column 21, torque is generated at two adjusting positions with a certain height difference in the axis direction of the steel pipe column 21, and then perpendicularity adjustment of the steel pipe column 21 is achieved. Specifically, the two adjusting positions are the console 2 and the second pair of middle parts 5, respectively, and the steel pipe column 21 is acted by the torque, so that the steel pipe column 21 is forced to change the inclination state thereof, and the steel pipe column 21 is perpendicular to the natural floor. And the height difference determines the magnitude of the generated torque, if the torque is too small, the verticality adjusting device can exert larger acting force to push the steel pipe column 21, so that the steel pipe column 21 locally bears larger acting force. The perpendicularity adjusting means may be the first adjusting mechanism 13 of the present embodiment. On the one hand, although the steel pipe column 21 belongs to a building component with strong rigidity and cannot generate structural damage due to locally bearing large acting force, under the condition that the contact area between the verticality adjusting device and the steel pipe column 21 is too small, the large acting force can aggravate the unbalanced stress of the steel pipe column 21, and further the steel pipe column 21 twists and is not stable. On the other hand, applying a large force also causes a large wear on the perpendicularity adjusting device, and the required specification of the perpendicularity adjusting device itself is too high, thereby increasing the cost. This embodiment passes through operation panel 2 and slides along first supporter 1, can adjust operation panel 2 and the second according to steel-pipe column 21 and engineering parameter and to the distance between the middle part 5, and then the size of control moment of torsion for the straightness adjusting device that hangs down can realize the straightness's of hanging down to steel-pipe column 21 through exerting less effort.

Preferably, as shown in fig. 1 and 2, the work platform further comprises a support ring 3 and a first wale 4. The support ring 3 and the first cross brace 4 are respectively disposed between the operation table 2 and the base 6. The support ring 3 and the first cross-brace 4 serve to stabilize the first support 1.

Preferably, the console 2 is provided with a first pair of intermediate portions 9, as shown in fig. 1 and 3. A second pair of intermediate portions 5 is provided between the first pair of intermediate portions 9 and the base 6, as shown in figure 2. In use, the steel pipe column 21 passes through the first and second pairs of

intermediate portions

9, 5 in succession. As shown in fig. 1, the first pair of middle portions 9 and the second pair of middle portions 5 are respectively disposed at different positions along the length direction of the first support body 1. The first pair of intermediate portions 9 and the second pair of intermediate portions 5 are parallel to each other. Through the setting mode, the perpendicularity of the steel pipe column 21 can be controlled in a displacement limiting mode according to the mathematical principle of two points and one line.

In another embodiment, the operation table 2 may not be moved in the longitudinal direction of the first support 1. The first pair of intermediate portions 9 moves in the longitudinal direction of the first support 1. Or the first pair of intermediate portions 9 is fixed in position and the second pair of intermediate portions 5 is moved along the first support 1. Or both the first 9 and the second 5 intermediate parts can be moved along the first support 1. Through this mode of setting up, the elevation circumstances that steel-pipe column 21 can be observed to the unmovable of operation panel 2, and the first 9 removal of middle part can realize adjusting and the second is to the distance between the middle part 5 according to steel-pipe column 21 and engineering parameter, and then the size of control moment of torsion for the straightness adjusting device that hangs down can realize the regulation to steel-pipe column 21 straightness that hangs down through exerting less effort.

Preferably, the console 2 is provided with a plate body 10. The plate body 10 is intended to carry an operator and the first pair of intermediate portions 9. Preferably, the plate body 10 may be made of a patterned steel plate.

Preferably, the console 2 further comprises a guardrail 8. The guard rail 8 surrounds the edge of the panel 10. Preferably, the height of the guard rail 8 is not less than 0.8 m.

Preferably, the plate body 10 is provided with an opening 19. The opening 19 is used for passing a steel pipe column 21. The cross section of the opening 19 is larger than that of the steel pipe column 21. The shape of the opening 19 may be rectangular, circular, polygonal, etc. A first pair of intermediate portions 9 is provided at the opening 19. The first pair of intermediate portions 9 is removably connected to the plate body 10 at the opening 19. The detachable means may be a bolted connection, a hinged connection, a snap connection, etc.

Preferably, the first pair of intermediate portions 9 comprises a second wale 11, a third wale 20 and a first adjustment mechanism 13. The second wale 11 is provided on the plate body 10 at the opening 19. The second wale 11 is detachably coupled to the panel body 10. The second wale 11 may be H-shaped steel. The second cross brace 11 is provided with a first groove body 12. The third cross brace 20 is connected with the second cross brace 11 through the first groove body 12. The third wale 20 may pass through the first tank body 12 to move in a length direction of the third wale 20. For example, the third wale 20 may be bolted to the first groove 12 by bolts, so that the third wale 20 is fixed to the second wale 11. Preferably, in case the opening 19 is rectangular, the second and

third wales

11 and 20 are respectively disposed around the opening 19 in a symmetrical manner, as shown in fig. 3. For example, the second wales 11 are respectively disposed at opposite sides of the opening 19 in a symmetrical manner. The third wales 20 are respectively disposed at opposite sides of the opening 19 in a symmetrical manner. Preferably, both end portions of the third wale 20 are connected with the first groove bodies 12 respectively provided on the end portions of the second wale 11.

Preferably, the first adjustment mechanism 13 is used to adjust the position of the steel pipe column 21. The first adjusting mechanisms 13 are respectively provided on the second wale 11 and the third wale 20. Preferably, the second and

third wales

11 and 20 are provided with a second groove body 14 connected with the first adjusting mechanism 13. The first adjusting mechanism 13 is detachably connected with the second wale 11/the third wale 20. Preferably, the first adjusting mechanism 13 may be moved in a length direction of the second wale 11/third wale 20. The first adjusting mechanism 13 is connected with the second cross brace 11/the third cross brace 20 through a second groove body 14 through bolts. Preferably, the first adjusting mechanism 13 can adjust the position through the second groove 14. Preferably, the first adjusting mechanism 13 may be a jack, an adjusting screw, or the like. The number of the first adjusting mechanisms 13 may be four, and are respectively provided on the second wale 11 and the third wale 20, as shown in fig. 3. Through this mode of setting, when adjusting the straightness that hangs down of steel-pipe column 21, can promote steel-pipe column 21 or lean on/not lean on with steel-pipe column 21 to carry on spacingly through a plurality of first adjustment mechanism 13, and then realize the regulation of straightness that hangs down through the location to steel-pipe column 21.

Preferably, the force-bearing surface of the first adjusting mechanism 13 is provided with at least one sliding body 15. The sliding body 15 can ensure that the contact surface moves in a plane direction. Through this setting mode, the friction between first adjustment mechanism 13 and the steel-pipe column 21 is rolling friction for the setting of sliding body 15, is showing and has reduced wearing and tearing and to the frictional force of steel-pipe column 21, and then when steel-pipe column 21 dead weight sinks, first adjustment mechanism 13 can make it sink more smoothly to steel-pipe column 21 spacing the time.

Preferably, the second pair of intermediate portions 5 is arranged between the support ring 3 and the seat 6. The second pair of middle portions 5 may limit the steel pipe column 21. Preferably, the second pair of intermediate portions 5 is of the same construction as the first pair of intermediate portions 9. For example, the second pair of intermediate portions 5 is provided with a second adjustment mechanism having the same structure as the first adjustment mechanism 13. Preferably, the first adjustment mechanism 13 and the second adjustment mechanism control the perpendicularity of the steel pipe column 21 in a displacement-limited manner. Preferably, the perpendicularity of the steel pipe column 21 is adjusted by adjusting the first/

second adjusting mechanisms

13, 13 in such a manner that the line connecting the first adjusting mechanism 13 of the first pair of middle portions 9 and the second adjusting mechanism of the second pair of middle portions 5 is parallel to the axis of the first supporting body 1. Preferably, the perpendicularity of the steel pipe column 21 is adjusted by adjusting the first/

second adjusting mechanisms

13, 9 in such a way that the line connecting the first adjusting mechanism 13 of the first pair of middle portions 9 and the second adjusting mechanism of the second pair of middle portions 5 is perpendicular to the natural floor.

Preferably, as shown in fig. 1, the first support 1 is provided with a second support 7 along the first direction. One end of the second support 7 is connected to the first support 1. The second support 7 is connected to the base 6 at an end opposite to the first support 1. Preferably, the end of the second support 7 opposite to the first support 1 may not be connected with the base 6. For example, the end of the second support 7 opposite to the first support 1 may be connected to a natural floor. The first direction is a direction neither parallel nor perpendicular to the length direction of the first support 1, as shown in fig. 1. Preferably, the second supports 7 may be disposed at opposite sides of the first support 1, respectively. The second support 7 can support the first support 1. For example, the second support body 7 may be H-shaped steel. The number of second supports 7 on each side of the first support 1 may be 1, 2, 3 or more. Preferably, in the case where the base 6 is rectangular, the end of the second support 7 may be provided on each side of the base 6 and its extension line.

Preferably, as shown in fig. 4, the base 6 includes a frame body 16 and a fourth wale 17. Preferably, the base 6 may be rectangular. The frame body 16 is two metal bodies arranged in parallel. For example, the frame 16 may be formed of two H-shaped steels. At least one fourth cross brace 17 is arranged between the frame bodies 16. The plurality of fourth wales 17 may be disposed in parallel or not. Preferably, the end of the second supporting body 7 may be provided on the frame body 16 or the fourth wale 17.

Preferably, the base 6 is provided with levelling means 18. A leveling device 18 may be provided at a connection of the fourth wale 17 and the frame body 16. For example, 4 fourth wales 17 may be provided. As shown in fig. 4, a leveling device 18 is provided at the bottom of the connection of the fourth wale 17 and the frame body 16. The levelling means 18 may be a jack. The number of levelling means 18 may be 1, 2, 3 or more.

For ease of understanding, the principle of adjusting the perpendicularity of the working platform provided in the present embodiment is explained.

Before the steel pipe column 21 is self-sunk and lowered for construction, the working platform is firstly lifted above the pile hole. The work platform is leveled by means of a leveling device 18 arranged at the base 6.

The steel pipe column 21 is hung and placed in the center of the working platform. Specifically, the steel pipe column 21 may be lowered by marking the cross center of the end of the steel pipe column 21 and aligning the cross center of the steel pipe column 21 with the cross centers of the first pair of middle portions 9 and the second pair of middle portions 5. After the steel pipe column 21 sequentially passes through the first pair of middle portions 9 and the second pair of middle portions 5, the position of the steel pipe column 21 is adjusted by the first adjusting mechanism 13 of the first pair of middle portions 9 and the second adjusting mechanism of the second pair of middle portions 5, and the steel pipe column 21 is limited within an error allowable range. After the perpendicularity adjustment of the steel pipe column 21 is completed, the steel pipe column 21 continues to be lowered, the elevation of the steel pipe column 21 is controlled through the elevation of the upper operating platform 2, and the steel pipe column 21 is lowered to a specified position and then fixed.

The difference between the working platform and the prior art lies in that the working platform is not provided with a pressure device, the sinking is completed by the self weight of the steel pipe column 21 after the concrete is poured, the working platform has the functions of leveling and positioning, the inserting position of the steel pipe column 21 can be controlled by the two-point principle through the first pair of middle parts 9 and the second pair of middle parts 5, and the verticality of the steel pipe column 21 is controlled in a displacement limiting manner. And the first adjusting mechanism 13 and the second adjusting mechanism are provided with the sliding bodies 15, so that the steel pipe column 21 can be more smoothly lowered. The elevation is measured upside down by the operation table 2 to control the steel pipe column 21 to reach the design elevation.

Example 2

This embodiment is a further supplement/improvement to embodiment 1, and repeated contents are not described again.

In the embodiment 1, the perpendicularity adjustment of the steel pipe column 21 is performed by the first pair of middle portions 9 and the second pair of middle portions 5, and the two-point one-line principle is adopted. The principle of two points and one line is that the torque is generated by the height difference between the first pair of middle parts 9 and the second pair of middle parts 5, and the verticality of the steel pipe column 21 is controlled by the first adjusting mechanism 13 and the second adjusting mechanism in a mode of limiting the position movement of the steel pipe column 21. During the adjustment of the steel pipe column 21, the steel pipe column 21 receives two kinds of acting forces. One acting force is that the steel pipe column 21 is in an inclined state and is respectively abutted against the first pair of middle parts 9 and the second pair of middle parts 5 under the action of self gravity, and then the first adjusting mechanism 13 of the first pair of middle parts 9 and the second adjusting mechanism of the second pair of middle parts 5 generate supporting acting force on the steel pipe column 21. The other acting force is an acting force that is actively applied to the steel pipe column 21 by adjusting the tilt state of the steel pipe column 21 by the first adjustment mechanism 13 and the second adjustment mechanism. Since the steel pipe column 21 has a large self-weight, it is necessary to apply a large force to change the inclination of the steel pipe column 21. However, when the contact area between the first adjustment mechanism 13 and the second adjustment mechanism and the steel pipe column 21 is too small, such a large force may increase the unbalance of the force applied to the steel pipe column 21, and may cause the steel pipe column 21 to twist and be unstable. If the steel pipe column 21 is in the hoisting state, the hoisting device is inevitably twisted due to the self-twisting, and the hoisting device may be damaged. Furthermore, the force of the hoisting device against the torsion is also fed back to the steel pipe column 21, and the steel pipe column 21 is in a non-stationary state. Because the first adjusting mechanism 13 and the second adjusting mechanism are in contact with the steel pipe column 21, acting force generated in a non-steady state can be fed back to the first adjusting mechanism 13 and the second adjusting mechanism, and on one hand, the first adjusting mechanism 13 and the second adjusting mechanism are impacted, and possibly generate abrasion to cause errors; on the other hand, the state that the working platform is leveled can be damaged due to impact, so that a plurality of errors are accumulated and overlapped, and the requirement of adjusting the verticality can be met only by repeating leveling and adjusting for a plurality of times. In addition, the sliding body 15 is provided on the force receiving surfaces of the first adjustment mechanism 13 and the second adjustment mechanism, that is, the portions that contact the steel pipe column 21. The slide body 15 is provided to make the lowering of the steel pipe column 21 smoother, but also to make it easier to cause the steel pipe column 21 to rotate along its own axis.

Based on the above problems, the present embodiment improves and supplements the first adjustment mechanism 13 and the second adjustment mechanism in embodiment 1.

Preferably, the end of the first adjustment means 13 is provided with at least one length element 22, as shown in fig. 5. The length element 22 is intended to cover and contact the surface of the steel pipe column 21. The length element 22 may increase the contact area of the first adjustment mechanism 13 with the steel pipe column 21. The length member 22 may increase the force-receiving area of the first adjustment mechanism 13.

As shown in fig. 5, the length element 22 may be provided in plurality, for example 1, 2, 3 or more. Preferably, the plurality of length members 22 may be provided in a radial manner centering on the end of the first adjustment mechanism 13. Through this mode of setting, can be when further increasing first adjustment mechanism 13 and steel-pipe column 21 area of contact, can be so that steel-pipe column 21 is balanced in its radial direction atress, and then can slow down the torsion of steel-pipe column 21.

Referring to fig. 6, the length element 22 comprises at least one first section 23. The number of first sections 23 may be 1, 2, 3 or more. A second section 24 is arranged between the two first sections 23. Or at least one end of the first section 23 is provided with a second section 24. The second section 24 is used for abutting against the surface of the steel pipe column 21, and therefore the stress area of the steel pipe column 21 is increased. Preferably, the middle portion of the first section 23 is convex toward the first adjustment mechanism 13, as shown in fig. 6. With the first adjustment mechanism 13 driving the length element 22 against the steel pipe column 21, at least the convex portion of the first section 23 does not abut against the steel pipe column 21 surface, as shown in fig. 7. The convex portion of the first segment 23 forms a first space 25 with the surface of the steel pipe column 21, as shown in fig. 6 and 7. The first space 25 is used for accommodating protrusions and corners on the surface of the steel pipe column 21.

Preferably, the convex portion of the first section 23 is provided with a hinge 26. The first section 23 is divided into a first segment 231 and a second segment 232 by a hinge 26. The first segment 231 and the second segment 232 may be rotated with respect to each other by the hinge 26, as shown in fig. 7. Preferably, the first segment 231 and the second segment 232 may be rotated toward the steel pipe column 21 side. The first segment 231 and the second segment 232 are rotatable toward the side away from the steel pipe column 21. The second section 24 can abut against the surface of the steel pipe column 21 through the relative rotation of the first section 231 and the second section 232, so that the length element 22 covers the surface of the steel pipe column 21, the stress area of the steel pipe column 21 is increased, and the degree of stress unbalance of the steel pipe column 21 is relieved.

Preferably, the hinge 26 is provided with a spring. With this arrangement, the first segment 231 and the second segment 232 can be kept to have the acting force rotating towards the steel pipe column 21 side by the elastic potential energy of the spring, and then the second segment 24 can automatically abut against the surface of the steel pipe column 21 by the elastic potential energy of the spring when the first adjusting mechanism 13 pushes the length element 22 to contact the surface of the steel pipe column 21.

Preferably, the first segment 231 and the second segment 232 have a certain arc. With this arrangement, when the first segment 231 and the second segment 232 are rotated toward the side away from the steel pipe column 21, the first space 25 can be formed by the convex portion of the first segment 23 and the surface of the steel pipe column 21. At the same time, the first space 25 can also be used to protect the hinge 26 from the surface contact of the hinge 26 with the steel pipe column 21, so that the hinge 26 will not be directly abutted against the surface of the steel pipe column 21 under the pushing of the first adjusting mechanism 13, and further wear or deformation will not occur.

Preferably, the first adjustment mechanism 13 is provided with at least one push rod 27. One end of the push rod 27 is connected to the first adjustment mechanism 13. The other end of the push rod 27 is connected to the second section 24. Preferably, one end of the push rod 27 may be connected with the first segment 231 and/or the second segment 232. Preferably, one end of the push rod 27 may be connected with the second section 24, the first section 231, and/or the second section 232, respectively. The number of pushers 27 may be 1, 2, 3 or more. Preferably, the push rod 27 is capable of telescoping under the control of the first adjustment mechanism 13. With this arrangement, the first adjustment mechanism 13 can apply an acting force to the second section 24 through the push rod 27, and further, can push and change the perpendicularity of the steel pipe column 21 or change the position of the steel pipe column 21. Meanwhile, the arrangement mode can also increase the acting force point on the steel pipe column 21, and further is beneficial to the stress balance of the steel pipe column 21. It should be noted that the first segment 231 and the second segment 232 have a certain radian, so that when the first segment 231 and the second segment 232 rotate, the hinge 26 can move towards the steel pipe column 21 side, and the push rod 27 is prevented from being blocked.

Referring to fig. 6 and 7, the second section 24 is angled from the first section 23. The included angle is greater than 0 degrees and less than 180 degrees. Preferably, the included angle is in the interval [90 °, 160 ° ]. Since the first adjustment mechanism 13 applies a force to the second section 24 by the push rod 27, the first segment 231 and the second segment 232 rotate toward the side away from the steel pipe column 21, as shown in fig. 7. This arrangement prevents the protruding portion of the first section 23 from interfering with the push rod 27. When the included angle is in the interval of [90 degrees, 160 degrees ], the first section 231 and the second section 232 are beneficial to rotate towards the side far away from the steel pipe column 21.

Preferably, the included angle decreases gradually with the length element 22 in the circumferential extension direction of the steel pipe column 21. Through this setting mode, the beneficial effect who reaches is: even if the steel pipe column 21 is a cylinder, the gradual decrease in the included angle allows the second section 24 to be attached to the surface of the steel pipe column 21, thereby increasing the force-receiving area of the steel pipe column 21.

Preferably, the length member 22 increases in width in a direction away from the end of the first adjustment mechanism 13. The second section 24 gradually increases in width in a direction away from the end of the first adjustment mechanism 13. With this arrangement, the contact area with the steel pipe column 21 increases in a direction away from the center of the applied force, and the applied force against the torsion of the steel pipe column 21 itself increases.

Referring to fig. 8, the second section 24 is provided with at least one sliding body 15. The sliding body 15 may be a sphere. In order to avoid the arrangement of the sliding body 15 to make the steel pipe column 21 easier to twist, the sliding body 15 may be a cylinder. By adopting the arrangement mode, the steel pipe column 21 is more smoothly lowered while the steel pipe column 21 is prevented from being twisted more easily.

Preferably, the end of the second adjustment mechanism is also provided with a length element 22. The structure of the length member 22 is the same as the above preferred embodiment, and repeated descriptions are omitted.

Example 3

The invention provides a using method of a working platform. The working platform is used for construction of the self-weight sinking type steel pipe column. The use method can be realized by the working platform and/or other alternative parts of the invention. Under the condition of no conflict/contradiction, the use method of the working platform of the embodiment can be implemented by the working platform provided by the embodiment 1.

The embodiment provides a use method of a working platform suitable for self-weight sinking type steel pipe column construction, and the working platform in the embodiment 1 and the embodiment 2 is used for adjusting the verticality of a steel pipe column 21. As shown in fig. 9, the using method comprises the following steps:

s100: the work platform is leveled by a leveling device 18 arranged on the base 6.

S200: the steel pipe column 21 is lowered after the center of the steel pipe column 21 is aligned with the centers of the first and second pairs of

intermediate portions

9 and 5 so that the steel pipe column 21 passes through the first and second pairs of

intermediate portions

9 and 5 in sequence. Preferably, the position of the steel pipe column 21 is adjusted by the first adjusting mechanism 13 of the first pair of middle portions 9 and the second adjusting mechanism of the second pair of middle portions 5, and the steel pipe column 21 is limited within an error allowable range. The allowable error range is less than 1/300. Preferably, the end of the first adjustment means 13 is provided with at least one length element 22. The structure and implementation of the length element 22 are the same as those of the length element 22 provided in example 2, and repeated descriptions are omitted.

S300: after the perpendicularity adjustment of the steel pipe column 21 is completed, the steel pipe column 21 continues to be lowered, the elevation of the steel pipe column 21 is controlled through the elevation of the upper operating platform 2, and the steel pipe column 21 is lowered to a specified position and then fixed.

The present specification encompasses multiple inventive concepts and the applicant reserves the right to submit divisional applications according to each inventive concept. The present description contains several inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", each indicating that the respective paragraph discloses a separate concept, the applicant reserves the right to submit divisional applications according to each inventive concept.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. A working platform for self-weight sinking type steel pipe column construction comprises a first supporting body (1) and a base (6), and is characterized in that a first pair of middle parts (9) and a second pair of middle parts (5) which are mutually spaced are arranged between the base (6) and the top of the first supporting body (1),

the first (9) and/or second (5) pairs of intermediate portions move along the first support (1).

2. A working platform for self-weight sinking type steel pipe column construction comprises a first supporting body (1) and a base (6), and is characterized in that a first pair of middle parts (9) are arranged between the base (6) and the top of the first supporting body (1), at least one first adjusting mechanism (13) is arranged on the first pair of middle parts (9), wherein,

the end of the first adjusting mechanism (13) is provided with at least one length element (22) for increasing the force-bearing area.

3. Work platform according to any of the claims 1 or 2, characterised in that the first adjustment means (13) provided in the first pair of intermediate parts (9) are provided at a distance from each other in the circumferential direction of the first support body (1), wherein,

the plurality of length elements (22) arranged at the end part of the first adjusting mechanism (13) are radially distributed by taking the end part of the first adjusting mechanism (13) as a center.

4. Work platform according to any of the previous claims, characterised in that said length element (22) comprises at least one first section (23) and that one and/or both ends of said first section (23) are provided with a second section (24), wherein,

the second section (24) is used for abutting against the surface of the steel pipe column (21).

5. Work platform according to any of the previous claims, characterised in that the middle part of the first section (23) is convex towards the side of the first adjustment means (13) and the convex part forms a first space (25) with the surface of the steel pipe column (21).

6. Work platform according to any of the previous claims, characterised in that the protruding part of the first section (23) is provided with a hinge (26), which hinge (26) divides the first section (23) into a first segment (231) and a second segment (232), wherein,

the first section (231) and the second section (232) respectively rotate towards one side of the steel pipe column (21); or

The first section (231) and the second section (232) respectively rotate towards the side far away from the steel pipe column (21).

7. Work platform according to any of the previous claims, characterised in that said first adjustment means (13) are provided with at least one push rod (27) connected to said second section (24), first segment (231) and/or second segment (232).

8. Work platform according to any of the previous claims, characterised in that said first segment (231) and/or second segment (232) has an arc, wherein,

when the first segment 231 and the second segment 232 are rotated toward the sides away from the steel pipe column 21, respectively, the hinge 26 is moved toward the steel pipe column 21 side without contacting the steel pipe column 21.

9. Work platform according to any of the previous claims, characterised in that said second section (24) is angled with respect to said first/second section (231/232), wherein,

the included angle is gradually reduced along the direction of the length element (22) extending along the circumferential direction of the steel pipe column (21).

10. Use method of a working platform for self-weight sinking steel pipe column construction, characterized in that the use method comprises the steps of lowering and perpendicularity adjusting a steel pipe column (21) by using the working platform according to any one of claims 1 to 9.