CN216471740U - Interim fixing device during welding of outer hanging tower crane foundation girder steel - Google Patents
Interim fixing device during welding of outer hanging tower crane foundation girder steel Download PDFInfo
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- CN216471740U CN216471740U CN202122928357.4U CN202122928357U CN216471740U CN 216471740 U CN216471740 U CN 216471740U CN 202122928357 U CN202122928357 U CN 202122928357U CN 216471740 U CN216471740 U CN 216471740U
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Abstract
The utility model discloses a temporary fixing device for welding an external hanging type tower crane foundation steel beam. The construction method belongs to the technical field of construction of tower cranes for buildings, and comprises welding H-shaped steel beams, high-strength bolts, steel plate lifting lugs, U-shaped clamping rings, steel wire ropes, chain blocks, safety ropes and rope clamping and shackle; the welding H-shaped steel is provided with four steel plate lifting lugs, and the welding H-shaped steel beam tower crane slewing mechanism is connected; a steel wire rope is hung below a lifting lug at the lower part of the steel wire rope, and the steel wire rope is connected with a steel plate lifting lug through a U-shaped clamping ring; the steel wire rope is connected with the lower basic steel beam through a chain block, and the height of the basic steel beam is adjusted through the chain block; the upper portion of safety rope links to each other with shaped steel board lug through U type snap ring, and the lower part links to each other with basic girder steel through rope clip shackle. According to the utility model, the hanging lug hanging points are added, the basic steel beam is temporarily fixed, the position of the steel beam can be adjusted, the welding is convenient, and the time for occupying other tower cranes is reduced; and meanwhile, the tower crane can be disassembled and used along with the turnover of the tower crane, so that the safety and convenience of construction are improved, and the construction period and cost are saved.
Description
Technical Field
The utility model belongs to the technical field of construction of tower cranes and relates to a temporary fixing device for welding an external hanging type tower crane foundation steel beam.
Background
The tower crane is important vertical transportation equipment in super high-rise building construction, and the externally hung tower crane is a common construction mode. The external hanging type tower crane is arranged on the periphery of the structure in a whole length mode, the working radius is large, and heavy large parts can be placed beside the crane to hoist the large parts or combined parts. Some small pieces can be combined into a large piece on the ground for hoisting, so that the workload of high altitude is reduced, the efficiency can be improved, and the method is beneficial to safety. The building only bears the horizontal load of tower crane transmission, adheres to and the usable construction clearance of jacking process goes on, and is little to total construction progress influence. The visual field is wide, and a crane driver can see the whole hoisting process, so that the tower crane is favorable for operation.
However, the external climbing tower crane needs to construct a tower crane foundation and a wall-attached embedded part, and each time the foundation steel beam is installed, a large amount of time is required for other tower cranes. Need other tower cranes temporary fixation foundation girder steel, accomplish foundation girder steel and attach the wall and bury the piece welding back, supplementary tower crane side can loosen the hook. Occupy other tower crane live time, increased the possibility of tower crane collision simultaneously, bring the risk for safe construction.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a temporary fixing device for welding an external hanging type tower crane foundation steel beam.
The technical scheme is as follows: the utility model relates to a temporary fixing device for welding an external hanging type tower crane foundation steel beam,
the welding method comprises the steps of welding an H-shaped steel beam (1), installing two upper steel plate lifting lugs (4) at the upper end of the welding H-shaped steel beam (1), respectively installing two high-strength bolts (2) at the upper end of the welding H-shaped steel beam (1) and the outer ends of the two upper steel plate lifting lugs (4), and connecting the welding H-shaped steel beam (1) with a tower crane swing mechanism (14) through the installed high-strength bolts (2);
two sides of the lower end of the welded H-shaped steel beam (1) are respectively provided with a lower steel plate lifting lug (3), a steel wire rope (6) is arranged on the lower steel plate lifting lug (3), a U-shaped clamping ring (5) is arranged between the steel wire rope (6) and the lower steel plate lifting lug (3), and the steel wire rope (6) is connected with the lower steel plate lifting lug (3) through the U-shaped clamping ring (5);
a chain block (7) is arranged below the steel wire rope (6), and the steel wire rope (6) is connected with a tower crane foundation steel beam (13) arranged on the lower side of the chain block (7) through the chain block (7);
still installed safety rope (8), safety rope (8) link to each other with lower part steel sheet lug (3) through U type snap ring (5) the lower part of safety rope (8) is connected with tower crane foundation girder steel (13) through rope clip shackle (9).
Furthermore, the welded H-shaped steel beam (1) is formed by welding steel plates, the welding is full penetration welding, and the section is H-shaped;
a stiffening plate (10) is arranged in the welded H-shaped steel beam (1), the welded H-shaped steel beam (1) is reinforced through the arranged stiffening plate (10), and a welding seam is a fillet welding seam;
eight bolt holes (12) are arranged at the top of the welded H-shaped steel beam (1), and the bolt holes (12) are bored holes.
Furthermore, a bolt hole reinforcing steel plate (11) is arranged at the position where the high-strength bolt (2) penetrates through the welded H-shaped steel beam (1).
Furthermore, a wall-attached clamping plate (15) is installed at one end of the tower crane foundation steel beam (13), and a wall-attached embedded part (16) is welded on the wall-attached clamping plate (15).
Furthermore, an anti-corrosion and anti-rust plastic coating is arranged on the surface of the welded H-shaped steel beam (1).
Has the advantages that: compared with the prior art, the utility model has the characteristics that the utility model utilizes the structural characteristics of the swing mechanism of the tower crane, and the swing mechanism is reserved with bolt holes; h-shaped steel is installed and welded, and hanging points of hanging lugs are increased; after the tower crane foundation steel beam is hoisted in place, temporarily fixing the wall-attached foundation steel beam by using a steel wire rope and a chain block by using a lifting lug lifting point at the lower part of the H-shaped steel; the hook releasing of the tower crane is assisted, so that the occupied time is reduced; the height of the steel beam of the wall-attached foundation is adjusted by adjusting the chain block, so that the steel beam clamping plate and the embedded part are welded conveniently, the safety and the convenience of construction are improved, and the construction period and the cost are saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the welded H-beam of the present invention;
FIG. 3 is another structural view of the present invention for welding H-beams;
FIG. 4 is a schematic view of the working state of the present invention;
in the drawing, 1 is a welded H-shaped steel beam, 2 is a high-strength bolt, 3 is a lower steel plate lifting lug, 4 is an upper steel plate lifting lug, 5 is a U-shaped clamping ring, 6 is a steel wire rope, 7 is a chain block, 8 is a safety rope, 9 is a rope clamping shackle, 10 is a stiffening plate, 11 is a reinforcing steel plate at a bolt hole, 12 is a bolt hole, and 13 is a tower crane foundation steel beam; 14 is a tower crane return mechanism, 15 is a wall-attached clamping plate, and 16 is a wall-attached embedded part.
Detailed Description
The utility model is further described below with reference to the following figures and specific examples.
As shown in the drawing, the temporary fixing device for the externally-hung tower crane foundation steel beam during welding is provided,
the method comprises the steps of welding an H-shaped steel beam 1, installing two upper steel plate lifting lugs 4 at the upper end of the welding H-shaped steel beam 1, respectively installing two high-strength bolts 2 at the upper end of the welding H-shaped steel beam 1 and the outer ends of the two upper steel plate lifting lugs 4, and connecting the welding H-shaped steel beam 1 with a tower crane slewing mechanism 14 through the installed high-strength bolts 2;
two sides of the lower end of the welded H-shaped steel beam 1 are respectively provided with a lower steel plate lifting lug 3, a steel wire rope 6 is arranged on the lower steel plate lifting lug 3, a U-shaped clamping ring 5 is arranged between the steel wire rope 6 and the lower steel plate lifting lug 2, and the steel wire rope 6 is connected with the lower steel plate lifting lug 3 through the U-shaped clamping ring 5;
a chain block 7 is arranged below the steel wire rope 6, and the steel wire rope 6 is connected with a tower crane foundation steel beam 13 arranged on the lower side of the chain block 7 through the chain block 7;
still installed the safety rope 8, the safety rope 8 links to each other with lower part steel sheet lug 3 through U type snap ring 5 the lower part of safety rope 8 is connected with tower crane foundation girder steel 13 through rope buckle 9.
Further, the welded H-shaped steel beam 1 is formed by welding steel plates, the welding is full penetration welding, and the section is H-shaped;
a stiffening plate 10 is arranged in the welded H-shaped steel beam 1, the welded H-shaped steel beam 1 is reinforced through the arranged stiffening plate 10, and a welding seam is a fillet welding seam;
eight bolt holes 12 are arranged at the top of the welded H-shaped steel beam 1, and the bolt holes 12 are bored holes.
Further, a reinforcing steel plate 11 at a bolt hole is arranged at the position where the high-strength bolt 2 penetrates through the welded H-shaped steel beam 1.
Furthermore, a wall-attached clamping plate 15 is arranged at one end of the tower crane foundation steel beam 13, and a wall-attached embedded part 16 is welded on the wall-attached clamping plate 15.
Furthermore, an anti-corrosion and anti-rust plastic coating is arranged on the surface of the welded H-shaped steel beam 1.
Specifically, the temporary fixing device for welding the externally-hung tower crane foundation steel beam comprises equipment for welding an H-shaped steel beam 1, a high-strength bolt 2, a lower steel plate lifting lug 3, an upper steel plate lifting lug 4, a U-shaped clamping ring 5, a steel wire rope 6, a chain block 7, a safety rope 8, a rope clamp shackle 9 and the like;
the upper part and the lower part of the welded H-shaped steel beam 1 are provided with four steel plate lifting lugs, two upper steel plate lifting lugs 4 are arranged at the upper part of the welded H-shaped steel beam 1, two lower steel plate lifting lugs 3 are arranged at the lower part of the welded H-shaped steel beam 1, and the welded H-shaped steel beam 1 is connected with a tower crane slewing mechanism 14 through a high-strength bolt 2 at the top;
the welding H-shaped steel beam 1 is hung with a steel wire rope 6 through a lower steel plate lifting lug 3, and the steel wire rope 6 is connected with the lower steel plate lifting lug 3 through a U-shaped clamping ring 5;
the steel wire rope 6 is connected with a tower crane foundation steel beam 13 below through a chain block 7, and the height of the tower crane foundation steel beam 13 can be adjusted through the chain block 7;
the safety rope 8 is a steel wire rope, the upper part of the safety rope is connected with the lower steel plate lifting lug 3 through a U-shaped clamping ring 5, and the lower part of the safety rope is connected with a tower crane foundation steel beam 13 through a rope clamping shackle 9;
the welded H-shaped steel beam 1 is formed by welding steel plates, the welding is full penetration welding, and the section is H-shaped;
the additional stiffening plate 10 is used for reinforcement, and the welding seam is a fillet welding seam; eight bolt holes 12 are formed in the top of the welded H-shaped steel beam 1, the bolt holes 12 are bored holes, and the positions of the bolt holes 12 are used for reinforcing the reinforcing steel plates 11 at the bolt holes;
the welded H-shaped steel beam 1 is formed by welding Q345 steel plates with the thickness of 30mm, the length of the steel beam is 3700mm, the welding is first-stage full penetration welding, the two sides of a V-shaped groove of a butt joint are welded, and the section is H-shaped;
the additional stiffening plates 10 are used for reinforcement, 26Q 345 steel plates with the thickness of 30mm are distributed on the middle parts of the steel beams, the bolt holes 12 and the lower steel plate lifting lugs 3, and the welding seams are fillet welds;
eight bolt holes 12 are arranged at the top of the welded H-shaped steel beam 1, and the bolt holes are bored holes with apertures
The tolerance of the center distance of the holes does not exceed +/-1 mm; a Q345 steel plate (a reinforced steel plate 11 at the bolt hole) with the thickness of 300mm is welded at the position of the bolt hole 12 for reinforcement, the surface of the bolt hole 12 is machined after welding, and the flatness error is not more than 0.3 mm; welding two upper steel plate lifting lugs 4 at the upper part of the H-shaped steel beam 1, wherein the size is 100X 20mm, the aperture is 30mm, the size is 200X 30mm, the aperture is 80mm, the lifting lug hole is a boring hole, welding Q345 steel with a section steel factory is adopted, single-side V-shaped groove welding is adopted, and the back chipping is 8-10 mm;
the welded H-shaped steel beam 1 is welded H-shaped steel and needs to be welded in a factory; the surface of the steel has no weld beading, splashing, pinholes, flash, burrs and the like; derusting is needed when the surface of the H-shaped steel beam 1 is welded, sand blasting is adopted for derusting, the roughness reaches Ra40-80um, the derusted surface presents the natural color of metal, and the surface does not have attachments such as grease, dirt and the like; after rust removal, coating paint, wherein the primer is alkyd antirust paint, the finish paint is alkyd enamel paint, and the total thickness of a paint dry film is more than 150mm, and performing anticorrosion and antirust treatment;
the top of the welded H-shaped steel beam 1 is provided with a bolt hole 12, and the welded H-shaped steel beam is connected with a tower crane reinstallation mechanism 14 through a high-strength bolt 2, wherein the preferred bolt is a 10.9-grade high-strength bolt 2 with the specification of M42 × 185;
two upper steel plate lifting lugs 4 arranged on the upper part of the welding H-shaped steel beam 1 are used for hoisting and transporting the welding H-shaped steel beam 1;
two lower part steel sheet lugs 3 that welding H shaped steel roof beam 1 lower part was installed use for hanging wire rope 6 down, and preferred is: the steel wire rope 6 is a 6 multiplied by 37-28mm steel wire rope, and is used for temporarily increasing hoisting points and fixing the tower crane foundation steel beam 13;
the height of the tower crane foundation steel beam 13 can be manually adjusted by the chain block 7, the chain block 7 which is preferably used is 10t of chain block 7 and is used for accurate positioning, and the wall attachment clamping plate 15 is welded on the wall attachment embedded part 16;
the safety rope 8 is connected with and welded with a lower steel plate lifting lug 3 of the H-shaped steel beam 1 through a U-shaped clamping ring 5 and is connected with a tower crane foundation steel beam 13 through a rope clamping shackle 9; the chain block 7 steel chain is prevented from being broken because of the non-stressed rope; preferably, the safety rope 8 is a steel wire rope with the diameter of 6 multiplied by 37 to 28mm, the U-shaped snap ring 5 and the rope clip shackle 9 are 10t in specification, and a pear-shaped ring is arranged inside the steel wire rope 6.
The working principle of the utility model is as follows: a temporary fixing device for welding an externally-hung tower crane foundation steel beam is used for welding an H-shaped steel beam 1, a lower steel plate lifting lug 3, an upper steel plate lifting lug 4, a stiffening plate 10 and a reinforcing steel plate 11 at a bolt hole to form a whole, and the top of the whole is provided with a bolt hole 12, a steel plate lifting lug hole and a boring hole. After being processed, coated and accepted, the products are transported to the site;
after entering the field, the other tower crane is lifted to the bottom of a tower crane return mechanism 14 in an auxiliary way through an upper steel plate lifting lug 4 and fixed through a high-strength bolt 12; then, sequentially installing a U-shaped clamping ring 5, a steel wire rope 6, a chain block 7 and a safety rope 8; when the tower crane is used, the other tower crane hoists the tower crane foundation steel beam 13 to the position near the wall-attached embedded part 16;
then, connecting the chain block 7 with a tower crane foundation steel beam 13, and connecting the safety rope 8 with the tower crane foundation steel beam 13 through a rope clamp shackle 9; when the safety rope 8 and the chain block 7 are reliably connected, the other tower crane is unhooked; adjusting the position of the wall attaching clamp plate 15 through the chain block 7, and welding the wall attaching clamp plate 15 with the wall attaching embedded part 16; after the welding is firm, the chain block 7 and the safety rope 8 can be loosened in sequence; and finally, the safety rope 8, the steel wire rope 6 and the chain block 7 are wound on a standard section of the tower crane, so that the hoisting influence on the tower crane is avoided.
According to the utility model, by utilizing the structural characteristics of the tower crane return mechanism 14, bolt holes 12 are reserved in the tower crane return mechanism 14; mounting and welding an H-shaped steel beam 1, and additionally hanging a lower steel plate lifting lug 3; after the tower crane foundation steel beam 13 is hoisted in place, the tower crane foundation steel beam 13 is temporarily fixed by a steel wire rope 6 and a chain block 7 by using a lower steel plate lifting lug 3 welded with an H-shaped steel beam 1; the hook releasing of the tower crane is assisted, so that the occupied time is reduced; the height of a tower crane foundation steel beam 13 is adjusted by adjusting the chain block 7 chain block, so that the wall-attached clamping plate 15 and the wall-attached embedded part 16 can be conveniently welded; the safety and the convenience of construction are improved, and the construction period and the cost are saved.
It should be noted that 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 utility model may be made by those skilled in the art without departing from the principle of the utility model.
Claims (5)
1. A temporary fixing device for welding an external hanging type tower crane foundation steel beam is characterized in that,
the welding method comprises the steps of welding an H-shaped steel beam (1), installing two upper steel plate lifting lugs (4) at the upper end of the welding H-shaped steel beam (1), respectively installing two high-strength bolts (2) at the upper end of the welding H-shaped steel beam (1) and the outer ends of the two upper steel plate lifting lugs (4), and connecting the welding H-shaped steel beam (1) with a tower crane swing mechanism (14) through the installed high-strength bolts (2);
two sides of the lower end of the welded H-shaped steel beam (1) are respectively provided with a lower steel plate lifting lug (3), a steel wire rope (6) is arranged on the lower steel plate lifting lug (3), a U-shaped clamping ring (5) is arranged between the steel wire rope (6) and the lower steel plate lifting lug (3), and the steel wire rope (6) is connected with the lower steel plate lifting lug (3) through the U-shaped clamping ring (5);
a chain block (7) is arranged below the steel wire rope (6), and the steel wire rope (6) is connected with a tower crane foundation steel beam (13) arranged on the lower side of the chain block (7) through the chain block (7);
still installed safety rope (8), safety rope (8) link to each other with lower part steel sheet lug (3) through U type snap ring (5) the lower part of safety rope (8) is connected with tower crane foundation girder steel (13) through rope clip shackle (9).
2. The temporary fixing device for the welding of the externally-hung tower crane foundation steel beam according to claim 1,
the welded H-shaped steel beam (1) is formed by welding steel plates, the welding is full penetration welding, and the section is H-shaped;
a stiffening plate (10) is arranged in the welded H-shaped steel beam (1), the welded H-shaped steel beam (1) is reinforced through the arranged stiffening plate (10), and a welding seam is a fillet welding seam;
eight bolt holes (12) are arranged at the top of the welded H-shaped steel beam (1), and the bolt holes (12) are bored holes.
3. The temporary fixing device for the welding of the externally-hung tower crane foundation steel beam according to claim 1, wherein a bolt hole reinforcing steel plate (11) is further arranged at the position where the high-strength bolt (2) penetrates through the welded H-shaped steel beam (1).
4. The temporary fixing device for welding the externally-hung tower crane foundation steel beam according to claim 1, wherein a wall-attached clamping plate (15) is installed at one end of the tower crane foundation steel beam (13), and a wall-attached embedded part (16) is welded on the wall-attached clamping plate (15).
5. The temporary fixing device for welding the externally-hung tower crane foundation steel beam according to claim 1, wherein an anti-corrosion and anti-rust plastic coating is arranged on the surface of the welded H-shaped steel beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122928357.4U CN216471740U (en) | 2021-11-26 | 2021-11-26 | Interim fixing device during welding of outer hanging tower crane foundation girder steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122928357.4U CN216471740U (en) | 2021-11-26 | 2021-11-26 | Interim fixing device during welding of outer hanging tower crane foundation girder steel |
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| CN216471740U true CN216471740U (en) | 2022-05-10 |
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| CN202122928357.4U Active CN216471740U (en) | 2021-11-26 | 2021-11-26 | Interim fixing device during welding of outer hanging tower crane foundation girder steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764406A (en) * | 2020-08-19 | 2020-10-13 | 中国五冶集团有限公司 | Adjustable inhaul cable |
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2021
- 2021-11-26 CN CN202122928357.4U patent/CN216471740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111764406A (en) * | 2020-08-19 | 2020-10-13 | 中国五冶集团有限公司 | Adjustable inhaul cable |
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