CN210193218U - Large-scale steel structure turnover device - Google Patents
Large-scale steel structure turnover device Download PDFInfo
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- CN210193218U CN210193218U CN201920883498.9U CN201920883498U CN210193218U CN 210193218 U CN210193218 U CN 210193218U CN 201920883498 U CN201920883498 U CN 201920883498U CN 210193218 U CN210193218 U CN 210193218U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 26
- 239000010959 steel Substances 0.000 title claims abstract description 26
- 230000007306 turnover Effects 0.000 title description 23
- 238000010276 construction Methods 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- SESFRYSPDFLNCH-UHFFFAOYSA-N benzyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OCC1=CC=CC=C1 SESFRYSPDFLNCH-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a large-scale steel structure turning-over device, which comprises a first limb part and a second limb part, wherein the respective sections of the first limb part and the second limb part are respectively provided with a double-opening box type structure; the first limb and the second limb are perpendicular to each other, one ends of the first limb and the second limb are crossed and then fixedly connected to form an L-shaped structure, and the root part where the first limb and the second limb are crossed is provided with an arc transition section structure. The device has simple structural design, low requirement on manufacturing precision, economy and practicability; hoisting facilities such as lifting lugs are prevented from being welded and removed from the rod piece, the quality of the rod piece is ensured, and the construction efficiency is improved; the huge impact on the hoisting equipment in the turning process is relieved, the construction safety in the turning process is effectively ensured, the service lives of equipment such as a crane and a hoisting rope sleeve are protected, and the cost is saved; the operability is strong, the operation is convenient, and the working efficiency is greatly improved.
Description
Technical Field
The utility model relates to a steel construction engineering building technical field especially relates to a large-scale steel construction turning-over device suitable for 360 within ranges of large-tonnage steel construction box cross-section member are stood up.
Background
With the continuous development of welding technology, welding materials and welding equipment, large-scale steel truss girder bridges are being developed into integral node all-welded structures from traditional bolted structures. In the traditional bolting structure, the chord members and the nodes are independent rod members and are connected into a whole through high-strength bolts; the novel whole node all-welded structure has the advantages that the chord members and the nodes are welded into a whole in a penetration butt joint mode, butt joint welding seams are butted in a vertical position for reducing welding deformation, each welding seam cannot be formed at one time, and the welding is finished for multiple times according to a welding sequence strictly, so that the welding of all the welding seams can be finished by turning over for multiple times in the welding process. The node rod piece has the characteristics of irregular appearance, large appearance size, heavy weight and the like; the chord member is a regular straight rod, the cross-sectional size is relatively small, the weight is relatively light, but the rod member is long. The rod piece formed by connecting the two rods is heavy in integral tonnage, asymmetric in appearance, large in head, thin in body, heavy in head, light in feet, difficult to turn over and dangerous. The traditional turning-over modes are generally divided into two modes, namely winding hoisting or welding lifting lugs on a rod piece, in the process of winding hoisting turning-over, the angle is difficult to control, larger impact can be generated due to sudden change of the turning angle, the loss to a crane and a lifting appliance is serious, and the potential safety hazard is larger; the mode of welding the lifting lug on the rod piece can cause adverse effect to the product quality, and the procedure of welding and dismantling the lifting lug on the rod piece is tedious, and is unfavorable for the construction progress.
SUMMERY OF THE UTILITY MODEL
The utility model provides a large-scale steel construction turning-over device. The turnover device avoids welding and dismounting lifting facilities such as lifting lugs and the like on the rod piece, ensures the quality of the rod piece and improves the construction efficiency; meanwhile, the huge impact on the hoisting equipment in the turnover process is relieved, the construction safety in the turnover process is effectively guaranteed, the service lives of equipment such as a crane and a hoisting rope sleeve are prolonged, the cost is saved, and meanwhile, the use is convenient and fast, so that the working efficiency is greatly improved.
The utility model provides a following scheme:
a large-scale steel structure turning device comprises:
the first limb part and the second limb part are respectively provided with a double-opening box type structure in cross section;
the first limb part and the second limb part are perpendicular to each other, one ends of the first limb part and the second limb part are mutually intersected and then fixedly connected to form an L-shaped structure, and the root part where the first limb part and the second limb part are intersected is provided with an arc transition section structure; the lifting device is characterized in that the ends, far away from each other, of the first limb part and the second limb part are respectively connected with a lifting lug, and lifting holes are formed in the lifting lugs and are used for being connected with lifting hooks for lifting.
Preferably: the contact surfaces of the inner sides of the first limb part and the second limb part and the rod piece are respectively provided with a plurality of backing plates.
Preferably: the backing plate is a square plate with the thickness of 45-55 mm.
Preferably: the double-opening box type structure is formed by assembling and welding a top plate, a bottom plate, three webs and an in-box stiffening plate.
Preferably: the lifting lug comprises two lug plates positioned on two sides of the middle web plate.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
by the utility model, a large-scale steel structure turning device can be realized, and in an implementation mode, the device can comprise a first limb part and a second limb part, wherein the respective sections of the first limb part and the second limb part are respectively provided with a double-opening box type structure; the first limb part and the second limb part are perpendicular to each other, one ends of the first limb part and the second limb part are mutually intersected and then fixedly connected to form an L-shaped structure, and the root part where the first limb part and the second limb part are intersected is provided with an arc transition section structure; the lifting device is characterized in that the ends, far away from each other, of the first limb part and the second limb part are respectively connected with a lifting lug, and lifting holes are formed in the lifting lugs and are used for being connected with lifting hooks for lifting.
The turnover device has the advantages that:
1. the structure design is simple, the requirement on manufacturing precision is not high, and the steel plate is completely welded by fillet welds, so that the steel plate is economical and practical;
2. hoisting facilities such as lifting lugs are prevented from being welded and removed from the rod piece, the quality of the rod piece is ensured, and the construction efficiency is improved;
3. the huge impact on the hoisting equipment in the turning process is relieved, the construction safety in the turning process is effectively ensured, the service lives of equipment such as a crane and a hoisting rope sleeve are protected, and the cost is saved;
4. the operability is strong, the operation is convenient, and the working efficiency is greatly improved.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a large-scale steel structure turning-over device provided by an embodiment of the utility model;
figure 2 is a cross-sectional view of a limb provided by an embodiment of the invention;
fig. 3 is a schematic view of a two-to-one rod according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a turning process provided by an embodiment of the present invention.
In the figure: the device comprises a first limb part 1, a second limb part 2, an arc transition section 3, a lifting lug 4, a lifting hole 5, a base plate 6, a top plate 7, a bottom plate 8, a web plate 9, a crane main hook 10, a crane auxiliary hook 11 and a rod piece 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
Examples
Referring to fig. 1 and 2, in order to provide a large-scale steel structure turning device according to an embodiment of the present invention, as shown in fig. 1 and 2, the device includes a first limb 1 and a second limb 2, and each cross section of the first limb 1 and the second limb 2 has a double-mouth box-type structure;
the first limb part 1 and the second limb part 2 are perpendicular to each other, and one ends of the first limb part and the second limb part are jointed and then fixedly connected to form an L-shaped structure, and the root part of the joint of the first limb part 1 and the second limb part 2 is provided with an arc transition section 3 structure; the first limb part 1 and the second limb part 2 are respectively connected with a lifting lug 4 at the ends far away from each other, a lifting hole 5 is formed in each lifting lug 4, and each lifting hole 5 is used for being connected with a lifting hook for lifting.
Further, a plurality of backing plates 6 are arranged on the contact surfaces of the inner sides of the first limb part 1 and the second limb part 2 and the rod piece. The backing plate 6 is a square plate with the thickness of 45-55 mm.
Furthermore, the double-opening box type structure is formed by assembling and welding a top plate 7, a bottom plate 8, three web plates 9 and a stiffening plate in the box. The lifting lug comprises two lug plates positioned on two sides of the middle web plate.
The device is made of steel and consists of two limbs which are vertical to each other. The two limbs are both double-opening box-shaped sections, and the purpose is to ensure enough strength while striving for small section, light weight and convenient operation; the root part of the intersection of the two limbs passes through the arc transition section, so that the fillet weld of the root part is avoided, namely, the stress concentration is avoided, the stress is facilitated, and the section at the position is relatively increased, so that the rigidity of the root part is increased; considering that the box-type rod top and bottom plates are generally provided with edges which exceed the vertical plates by about 25mm, a cushion plate with the thickness of 50mm is additionally arranged at the contact surface between the inner sides of two limbs and the rod to raise the height of the contact surface, a certain space is additionally arranged at the arc part, the edges are convenient to place, the box-type rod top and bottom plates are arranged in sections, and the weight of the turnover device is reduced; the end of each limb is provided with a lifting lug, the lifting lug is provided with a lifting hole, in order to prevent the lifting hole from being pulled and cracked in the lifting process, the lifting lug is formed by superposing three plates, the lifting holes are drilled simultaneously after the three plates are welded, and the size of the lifting hole needs to ensure that a lifting hook for lifting can smoothly pass through. The turning of each large rod needs to be completed by lifting and hanging two cranes and two auxiliary turning devices, two lifting lugs of each auxiliary turning device are respectively hung on a main hook and an auxiliary hook of the same crane, and the rod is turned by loosening the auxiliary hooks and lifting the main hook. The turnover mechanism is suitable for turnover of large steel structural members, particularly the members with box-shaped sections at any angle. The operation is simple, the safety and the reliability are realized, the hoisting facilities such as lifting lugs are prevented from being welded and removed on the rod piece, the rod piece quality is ensured, and the construction efficiency is improved. The size and the bearing capacity of the two limbs of the turnover device can be adjusted according to the size of the section of the rod piece to be hoisted and the weight of the rod piece. The structural design is simple, the requirement on manufacturing precision is not high, the steel plate is formed by welding common steel plates through fillet welds, and the steel plate is economical and practical.
The turning over of each large rod piece of the device needs to be completed by two cranes and two auxiliary turning-over devices. One limb of each pair of turnover devices is flatly wrapped below the rod piece, the other limb of each pair of turnover devices is vertically attached to the rod piece, two lifting hooks respectively penetrate through the two lifting lugs and then are respectively hung on a main hook and an auxiliary hook of the same crane, and the main hook is lifted by loosening the auxiliary hooks to complete the turnover of the rod piece. The device has simple structure and convenient manufacture and use.
The large-scale steel structure rod piece turnover device mainly comprises 6 parts including a first limb part, a second limb part, an arc transition section, a lifting lug and a base plate, wherein each part is formed by assembling and welding steel plate parts, and the first limb part, the second limb part and the arc transition section are of a double-opening box type structure and are formed by assembling and welding a top plate, a bottom plate, three web plates and an in-box stiffening plate; the double-opening box-shaped section is small in section, light in weight and convenient to operate, and meanwhile, enough strength is guaranteed; the arc transition section avoids root fillet weld, namely avoids stress concentration, and is beneficial to stress, and the arc heightens the section of the arc transition section, so that the rigidity of the arc transition section is effectively increased. The lifting lug and the lifting lug are formed by respectively welding a lifting lug plate on two sides of a web plate in the middle of a limb in an attaching mode, namely the lifting lug and the lifting lug are formed by overlapping three plates, and the problem that lifting lug holes are pulled to be cracked in the lifting process is effectively solved. The base plate is a square plate and is arranged on the inner side of a limb in a segmented mode through fillet welds, the height of a contact surface is increased by adding the plate, a certain space is added at the arc position, and the rod piece is convenient to place along the edge. In the manufacturing process, all butt joint parts of all parts are welded by penetration welding, and the rest parts are welded by common equal-strength fillet welding; ensuring the perpendicularity of the first limb and the second limb.
When the turnover device is used, two cranes and two auxiliary turnover devices are required to lift and hang each large rod piece to complete turnover of the rod piece, one limb of each auxiliary turnover device is flatly wrapped below the rod piece, the other limb of each auxiliary turnover device is vertically attached to the rod piece, two lifting hooks respectively penetrate through two lifting lugs and then are respectively hung on a main hook and an auxiliary hook of the same crane, and the main hook is lifted to complete turnover of the rod piece by loosening the auxiliary hooks. The device has simple structure and convenient manufacture and use.
The example is that the lower chord node of the bridge of Bengal pardema and the adjacent lower chord are connected with one-by-two rod pieces, and the one-by-two rod pieces are shown in figure 3 and have the characteristics that: the appearance is asymmetric, and the head is large and the body is thin; the total weight is about 100 tons, the node weight is about 80 tons, and the head weight and the foot weight are light; before turning over, only 2 vertical position welding seams of the 4 welding seams are welded for a plurality of times, and the rigidity is not completely formed, namely the two-welding-one rod piece is not completely integrated. Based on the 3 characteristics, the turnover device is designed and completed according to the conventional turnover mode, which is time-consuming, labor-consuming, high in cost, low in efficiency, incapable of well guaranteeing safety and quite difficult in construction.
The rod of this example has a cross-section of 1.6m by 1.6m, a length of about 16m and a weight of about 100 tons. Two 50/25t portal cranes are selected as hoisting equipment, the lifting appliance is a giant power brand nylon soft lifting hook with the model R02-100, and the single-strand bearing capacity is 100 tons. Firstly, one limb of each of the two auxiliary turning-over devices is flatly wrapped below a rod piece, and the other limb is vertically attached to the rod piece in a clinging manner, so that the two auxiliary turning-over devices are placed in the same direction; secondly, two lifting hooks of each auxiliary device respectively penetrate through the two lifting lugs and then are respectively hung on a main hook 10 and an auxiliary hook 11 of the same crane, the auxiliary hook is hung on the vertical lifting lug, and the main hook is hung on the flat pocket lifting lug; thirdly, hoisting to separate the support platform from the support platform; fourthly, after the lifting is separated from the platform, the main hook is lifted by loosening the auxiliary hook to complete the overturning of the rod 12. The turning over process is shown in figure 4.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a large-scale steel construction turning device which characterized in that includes:
the first limb part and the second limb part are respectively provided with a double-opening box type structure in cross section;
the first limb part and the second limb part are perpendicular to each other, one ends of the first limb part and the second limb part are mutually intersected and then fixedly connected to form an L-shaped structure, and the root part where the first limb part and the second limb part are intersected is provided with an arc transition section structure; the lifting device is characterized in that the ends, far away from each other, of the first limb part and the second limb part are respectively connected with a lifting lug, and lifting holes are formed in the lifting lugs and are used for being connected with lifting hooks for lifting.
2. The large steel structure turning device according to claim 1, wherein a plurality of backing plates are arranged on the contact surfaces of the inner sides of the first limb part and the second limb part and the rod piece.
3. The turning device for the large-scale steel structure as claimed in claim 2, wherein the backing plate is a square plate with the thickness of 45-55 mm.
4. The large-scale steel structure turning device as claimed in claim 1, wherein the double-opening box type structure is formed by assembling and welding a top plate, a bottom plate, three webs and a box inner stiffening plate.
5. The large steel structure turning device according to claim 4, wherein the lifting lug comprises two lug plates positioned at two sides of the middle web plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920883498.9U CN210193218U (en) | 2019-06-13 | 2019-06-13 | Large-scale steel structure turnover device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920883498.9U CN210193218U (en) | 2019-06-13 | 2019-06-13 | Large-scale steel structure turnover device |
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| CN210193218U true CN210193218U (en) | 2020-03-27 |
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| CN201920883498.9U Active CN210193218U (en) | 2019-06-13 | 2019-06-13 | Large-scale steel structure turnover device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261894A (en) * | 2021-11-17 | 2022-04-01 | 海洋石油工程股份有限公司 | Method for turning over large sheet-shaped structure |
| CN115559221A (en) * | 2022-11-23 | 2023-01-03 | 中铁十五局集团有限公司 | A Method of Utilizing Cable Cranes to Assist the Upper Arch Rib Turning Over of the Beam Carrying Vehicle |
-
2019
- 2019-06-13 CN CN201920883498.9U patent/CN210193218U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261894A (en) * | 2021-11-17 | 2022-04-01 | 海洋石油工程股份有限公司 | Method for turning over large sheet-shaped structure |
| CN115559221A (en) * | 2022-11-23 | 2023-01-03 | 中铁十五局集团有限公司 | A Method of Utilizing Cable Cranes to Assist the Upper Arch Rib Turning Over of the Beam Carrying Vehicle |
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