CN110921507B - Steel column lifting stability control support and lifting method - Google Patents
Steel column lifting stability control support and lifting method Download PDFInfo
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- CN110921507B CN110921507B CN201911321246.8A CN201911321246A CN110921507B CN 110921507 B CN110921507 B CN 110921507B CN 201911321246 A CN201911321246 A CN 201911321246A CN 110921507 B CN110921507 B CN 110921507B
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- steel column
- fulcrum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
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Abstract
The invention discloses a steel column lifting stability control support and a lifting method. The steel column lifting device can effectively avoid violent shaking and rotation of the steel column in the lifting process, and is simple in structure, reusable, convenient and efficient to construct.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a steel column lifting stability control support and a lifting method.
Background
In recent years, the number of construction projects of super high-rise buildings is gradually increased, and in the design of steel structures of super high-rise buildings, huge section steel column members with super large sections are commonly applied, wherein the main section types are as follows: the vertical member has large section and heavier single weight, and the weight range is generally between 10t and 40 t; the heavy component has strict requirements on hoisting equipment and operation technology in the hoisting process, the hoisting risk coefficient of the heavy component is large, the risk in the hoisting process is high, the stable state of the component is difficult to control, and the influence on construction safety is large.
The hoisting process of large steel column members is very unstable, the steel column members are generally horizontally placed in a discharging place, and a hoisting point is arranged at the top of a steel column during hoisting, so that the hoisting process relates to a process of hoisting the steel column members from a horizontal state to a vertical state, during hoisting, one point (circular tube members) at the bottom edge of the steel column or one edge (rectangular members) of the members are used as a force acting point (fulcrum) with the ground, the hoisting point end of the members is gradually lifted along with the lifting hook, the circular tube members easily roll in the process, before the members are hoisted to be close to a vertical state, the gravity center of the members is positioned between the fulcrum at the bottom of the members and the hoisting point, when one end of the members is gradually hoisted to be close to the vertical state, the gravity center of the members is coincided with the fulcrum, when the members continue to be hoisted, the gravity center, under this state, hoisting equipment needs to bear great impact load, receives this influence also can take place to sway by a relatively large margin for a short time, waits to rock and reduces, and the component state just can continue the hoist and mount operation after tending towards steadily gradually.
In view of the above, the process that large-scale steel column class component hoisted to vertical state at the horizontality is unstable, and the safety risk is high, and the component is suddenly violently rocked and can make lifting device's steady state receive great influence, leads to incident or equipment trouble. There are two conventional solutions: firstly, by depending on the experience of operators of the hoisting equipment, when the critical point of shaking is approached, the hooking speed is accelerated, and the separation time of the component from the ground is reduced so as to reduce the shaking amplitude; because of the dependence on manual operation, the requirement on the operation skill is high, and the opportunity is difficult to master, and the lifting stability can not be ensured in a mature and reliable manner. Secondly, a layer of battens is padded at the bottom of the component, and the component is buffered by the deformation of the battens when shaking, so that the shaking amplitude is reduced; in the method, the battens are easy to damage, and the edge of a heavy component is easy to directly cut off the battens, so that the method is invalid, and the hoisting shake cannot be completely avoided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a steel column lifting stability control support and a lifting method, which can effectively avoid the violent shaking and rotation of a steel column in the lifting process, have simple structure, can be repeatedly used, and are convenient and efficient to construct.
In order to achieve the purpose, the invention provides the following technical scheme: the steel column lifting stability control support comprises a base, wherein two sides of the base are respectively provided with a slope finding inclined rod, the slope finding inclined rods and a plurality of supporting rods are connected between the base, a plurality of cross beams are arranged between the slope finding inclined rods, buffering battens are arranged on the cross beams, and two baffles are arranged on the cross beams at the lowest ends.
The base, the supporting rods, the slope finding inclined rods and the cross beam can be made of channel steel, H-shaped steel, rectangular pipes and the like and are fixed by welding, and the baffle is made of steel plates; the bottom surface of the formed bracket is rectangular, the vertical surface is trapezoidal, and the whole upper surface is in an inclined slope; the buffering battens and the cross beam are fixed through iron wires. The using method comprises the steps of placing the rigid column on a buffer batten of a cross beam at the lowest end of the support (the lowest end of the slope is the lower end), then hoisting the steel column, and gradually transferring the gravity center fulcrum of the rigid column in the process of gradually hoisting so that the steel column cannot shake.
Furthermore, a vertical rod connected with the base is arranged in the middle of each cross beam, and the vertical rods, the base and the cross beams are welded to increase the bearing capacity of the cross beams.
Furthermore, two ends of the cross beam at the lowest end are respectively provided with a groove-shaped hole, and bolts for fixing the baffle plates are arranged in the groove-shaped holes. The slot type hole sets up along the horizontal direction of crossbeam, and the downthehole bolt of every slot type sets up to two, utilizes the bolt to carry out the level to two baffle intervals of regulation, can the different specifications of adaptation steel column.
Furthermore, the inner side surfaces of the baffles are wedge-shaped and gradually widened from top to bottom, so that the cylindrical steel column can be conveniently clamped between the two baffles, excessive gaps can not be caused, and the stability is improved.
Further, the gradient of the slope finding inclined rod is arctan (B/L) +2 degrees, wherein B is the length or the diameter of the short side of the section of the steel column, L is the length of the steel column, the gradient of the slope finding inclined rod can be adjusted according to the section of the steel column, and the included angle between the bottom surface of the steel column and the horizontal plane before the gravity center of the steel column coincides with the lifting fulcrum is guaranteed to be larger than.
Further, the height of the baffle is B/3.
Further, the distance between the two cross beams at the lowest end is set to be 3B/4, the distance between the two cross beams at the lowest end can be determined according to the section size of the steel column, the distance can be 3B/4, and the purpose of fulcrum conversion can be achieved by ensuring that the opposite side of a lifting fulcrum can be positioned on the cross beams before the steel column is close to a vertical state.
A steel column hoisting method using a control support comprises the following steps:
(1) placing a steel column on the support, wherein the distance that the end part of the steel column extends out of the baffle is not less than the distance between the buffer batten and the ground, adjusting the position of the baffle, and controlling the transverse displacement of the steel column;
(2) hoisting the steel column through a hoisting point at the top of the steel column, and gradually hoisting the steel column to be in a nearly vertical state;
(3) when the gravity center of the steel column is close to the fulcrum, the opposite edges of the fulcrum of the steel column contact the upper buffer batten;
(4) the hook continues to be lifted, the fulcrum of the steel column is transferred to the upper buffer batten, the gravity center of the steel column is always on one side of the fulcrum in the lifting process due to the change of the fulcrum, the situation of crossing the fulcrum does not exist, and the steel column cannot shake;
(5) and continuously hoisting to a vertical state to finish the hoisting process.
In summary, compared with the prior art, the invention has the following beneficial effects:
(1) the bracket can be manufactured on site according to needs, and has the advantages of simple structure, low cost and convenient use;
(2) the invention can effectively avoid the shaking and the rotation of the steel column in the hoisting process, and is beneficial to the construction safety;
(3) the hoisting method does not add extra measure machinery, the material can be manufactured according to the actual recycled material, and the construction cost is low;
(4) the support can be repeatedly used, is suitable for lifting vertical steel columns of different specifications, and has strong universality.
Drawings
FIG. 1 is a schematic view of the structural composition of the stent of the present invention;
FIG. 2 is a three-dimensional schematic diagram of the initial hoisting state of the invention;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a side view of FIG. 2;
FIG. 5 is a top view of FIG. 2;
FIG. 6 is a schematic view of the fulcrum transition state during the hoisting process of the present invention;
fig. 7 is a three-dimensional schematic view of fig. 6.
Description of the labeling: 1. a steel column; 2. a baffle plate; 3. a base; 4. a support bar; 5. finding a slope inclined rod; 6. a cross beam; 7. buffering battens; 8. a vertical rod.
Detailed Description
The embodiments of a steel column lifting stability control support and a lifting method according to the present invention will be further described with reference to fig. 1 to 7.
The utility model provides a steel column lifts by crane stable control support, includes base 3, the both sides of base 3 respectively are equipped with one and look for slope down tube 5, look for slope down tube 5 with be connected with a plurality of bracing pieces 4 between the base 3, two look for and be equipped with a plurality of crossbeams 6 between the slope down tube 5, be equipped with buffering flitch 7 on the crossbeam 6, the lower extreme be equipped with two baffles 2 on the crossbeam 61.
The base 3, the supporting rod 4, the slope finding inclined rod 5 and the cross beam 6 can be made of channel steel, H-shaped steel, rectangular tubes and the like and are fixed by welding, and the baffle 2 is made of steel plates; the bottom surface of the formed bracket is rectangular, the vertical surface is trapezoidal, and the whole upper surface is in an inclined slope; the buffer battens 7 and the cross beam 6 are fixed through iron wires. The using method comprises the steps of placing the steel column 1 on a buffer batten 71 on a cross beam 61 at the lowest end of the support (the lowest end of a slope is the lower end), then hoisting the steel column 1, and gradually transferring the gravity center fulcrum of the steel column in the process of gradually hoisting, so that the steel column 1 cannot shake.
In the preferred embodiment, each cross beam 6 is provided with a vertical rod 8 connected with the base 3 in the middle, and the vertical rod 8 is welded with the base 3 and the cross beam 6, so that the bearing capacity of the cross beam 6 is improved.
In this embodiment, two ends of the cross beam 61 at the lowest end are respectively provided with a groove-shaped hole, and a bolt for fixing the baffle 2 is arranged in the groove-shaped hole. The slot type hole sets up along the horizontal direction of crossbeam 61, and the downthehole bolt of every slot type sets up to two, utilizes the bolt to carry out the level to adjusting two baffle 2 intervals, can the different specifications of adaptation steel column 1.
In this embodiment, preferably, the inner side surfaces of the baffles 2 are wedge-shaped and gradually widened from top to bottom, so that the cylindrical section steel column 1 can be conveniently clamped between the two baffles 2 without causing excessive gaps, and the stability is improved.
In this embodiment, preferably, the gradient of the slope finding slanting rod 5 is arctan (B/L) +2 °, where B is the length or diameter of the short side of the section of the steel column 1, and L is the length of the steel column 1, and the gradient of the slope finding slanting rod 5 can be adjusted according to the section of the steel column 1, and it is ensured that the included angle between the bottom surface of the steel column 1 and the horizontal plane is greater than the included angle between the gravity center of the steel column 1 and the lifting fulcrum before the gravity center of the steel.
In the embodiment, the height of the baffle 2 is preferably B/3.
Preferably, in the embodiment, the distance between the two cross beams 6 at the lowest part can be determined according to the section size of the steel column 1, and the distance can be 3B/4, so that before the steel column 1 approaches the vertical state, the opposite side of the lifting fulcrum can be positioned on the cross beam 6 to achieve the purpose of fulcrum conversion.
The specific steps of the bracket manufacturing and implementation are as follows:
(1) welding a rectangular frame base 3 by using channel steel, and calculating and determining the position of a supporting cross beam 6 in the base according to the specification of the steel column 1; (2) welding a support rod 4 on the base 3 according to the calculated position of the support beam 6, and calculating the length of the support rod 4 according to the gradient; (3) a slope finding inclined rod 5 is assembled at the upper part of the supporting rod 4, and the slope finding inclined rod 5 and the supporting rod 4 are welded and fixed; (4) assembling a cross beam 6 between the slope finding inclined rods 5, and respectively welding and fixing the cross beam with the slope finding inclined rods 5 and a middle vertical rod 8 to form an integral support structure; (5) a buffer batten 7 is placed on the cross beam 6 and fixed by an iron wire; (6) the lowest supporting beam 61 is provided with a slotted hole, and the baffle 2 is fixed on the supporting beam 61 through bolt connection.
A steel column hoisting method using a control support comprises the following steps:
(1) placing the steel column 1 on a buffer batten 71 on a support beam 61 at the lowest part of the support, wherein the distance from the end part of the steel column 1 to the baffle 2 is not less than the distance from the upper surface of the buffer batten 71 to the ground;
(2) adjusting the position of the baffle 2, and controlling the transverse displacement of the steel column 1;
(3) hoisting the steel column 1 through a hoisting point at the top of the steel column 1, and gradually hoisting to be in a nearly vertical state; in the process, the steel column 1 firstly takes the buffer battens 71 as a fulcrum, and with the increase of the lifting height, after one end of the steel column 1 contacts the ground, the steel column starts to take the ground as the fulcrum;
(4) when the gravity center of the steel column 1 is close to the pivot point in the vertical projection ground position, the opposite edge of the pivot point of the steel column 1 contacts the upper buffer batten 72;
(4) the steel column 1 is lifted continuously, the fulcrum of the steel column 1 is transferred to the upper buffer batten 72, and the gravity center of the steel column 1 is always on one side of the fulcrum in the lifting process due to the change of the fulcrum, so that the situation of crossing the fulcrum is avoided, and the steel column 1 cannot shake;
(5) and continuously hoisting to a vertical state to finish the hoisting process of the steel column 1.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (3)
1. The utility model provides a steel column lifts by crane stable control support which characterized in that: the novel slope finding device comprises a base, the both sides of base respectively are equipped with one and look for the slope down tube, look for the slope down tube with be connected with a plurality of bracing pieces between the base, two look for and be equipped with a plurality of crossbeams between the slope down tube, be equipped with buffering square timber on the crossbeam, the lower extreme be equipped with two baffles on the crossbeam, the lower extreme the both ends of crossbeam respectively are equipped with a cell type hole, the downthehole bolt that is used for fixing of cell type the baffle, the medial surface of baffle is the shape of carving that top-down gradually widened, the slope of looking for the slope down tube is arctan (B/L) +2, and wherein B is the section minor face length or the diameter of rigid column, and L is steel column length, the height of baffle is B/3, two the lower extreme interval between the crossbeam sets up to.
2. The steel column lifting stability control support according to claim 1, characterized in that: and a vertical rod connected with the base is arranged in the middle of each cross beam.
3. A method of lifting a steel column using the control brace of claim 1 or 2, comprising the steps of:
(1) placing a steel column on the support, wherein the distance that the end part of the steel column extends out of the baffle is not less than the distance between the buffer batten and the ground, adjusting the position of the baffle, and controlling the transverse displacement of the steel column;
(2) hoisting the steel column through a hoisting point at the top of the steel column, and gradually hoisting the steel column to be in a nearly vertical state;
(3) when the gravity center of the steel column is close to the fulcrum, the opposite edges of the fulcrum of the steel column contact the upper buffer batten;
(4) the hook continues to be lifted, the fulcrum of the steel column is transferred to the upper buffer batten, the gravity center of the steel column is always on one side of the fulcrum in the lifting process due to the change of the fulcrum, the situation of crossing the fulcrum does not exist, and the steel column cannot shake;
(5) and continuously hoisting to a vertical state to finish the hoisting process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911321246.8A CN110921507B (en) | 2019-12-20 | 2019-12-20 | Steel column lifting stability control support and lifting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911321246.8A CN110921507B (en) | 2019-12-20 | 2019-12-20 | Steel column lifting stability control support and lifting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110921507A CN110921507A (en) | 2020-03-27 |
| CN110921507B true CN110921507B (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911321246.8A Active CN110921507B (en) | 2019-12-20 | 2019-12-20 | Steel column lifting stability control support and lifting method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0761762A (en) * | 1993-08-27 | 1995-03-07 | Taiyo Seiki Kk | Stone potating device |
| CN204661146U (en) * | 2015-04-21 | 2015-09-23 | 中建六局建设发展有限公司 | That lifts by crane for auxiliary large-scale component stands up bearing |
| CN205077880U (en) * | 2015-09-17 | 2016-03-09 | 中建钢构有限公司 | Steel column stands up uses auxiliary device |
| CN206382778U (en) * | 2017-01-13 | 2017-08-08 | 华电曹妃甸重工装备有限公司 | A kind of welding processing supporting and adjusting device |
| CN109081240A (en) * | 2018-07-26 | 2018-12-25 | 中交第航务工程局有限公司 | A kind of wedge type large-diameter circular tubing string hoisting and overturning device |
-
2019
- 2019-12-20 CN CN201911321246.8A patent/CN110921507B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0761762A (en) * | 1993-08-27 | 1995-03-07 | Taiyo Seiki Kk | Stone potating device |
| CN204661146U (en) * | 2015-04-21 | 2015-09-23 | 中建六局建设发展有限公司 | That lifts by crane for auxiliary large-scale component stands up bearing |
| CN205077880U (en) * | 2015-09-17 | 2016-03-09 | 中建钢构有限公司 | Steel column stands up uses auxiliary device |
| CN206382778U (en) * | 2017-01-13 | 2017-08-08 | 华电曹妃甸重工装备有限公司 | A kind of welding processing supporting and adjusting device |
| CN109081240A (en) * | 2018-07-26 | 2018-12-25 | 中交第航务工程局有限公司 | A kind of wedge type large-diameter circular tubing string hoisting and overturning device |
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| Publication number | Publication date |
|---|---|
| CN110921507A (en) | 2020-03-27 |
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