CN108797375A - Large-span steel girder lifting device and hoisting - Google Patents
Large-span steel girder lifting device and hoisting Download PDFInfo
- Publication number
- CN108797375A CN108797375A CN201811047702.XA CN201811047702A CN108797375A CN 108797375 A CN108797375 A CN 108797375A CN 201811047702 A CN201811047702 A CN 201811047702A CN 108797375 A CN108797375 A CN 108797375A
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- lifting
- arm
- girder
- lifting lug
- span steel
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The present invention relates to steel beam lifting technical fields, large-span steel girder lifting hanger structure used in the prior art is heavy, a variety of span steel beam liftings are not adapted to, and it is unstable that lifting is easily led in hoisting process, it is not easy problem in place, to solve the above problems, the present invention provides large-span steel girder lifting device, including two arms；Both ends on arm respectively have the first lifting lug, and arm bottom and top are respectively provided with the second lifting lug, third lifting lug, are fixedly connected by steelframe between two arms；Each third lifting lug connects a brace, and triangle lifting lug is provided with above arm, and brace connects third lifting lug, compared with prior art, has the advantages that structure is merrily and lightheartedly stablized, lifts attitude stabilization, adapts to different length steel beam lifting.The present invention also provides the large-span steel girder hoisting for using large-span steel girder lifting device to carry out large-span steel girder lifting, has the advantages that lift attitude stabilization, adapts to different length steel beam lifting.
Description
Technical field
The present invention relates to steel beam lifting technical fields, are large-span steel girder lifting device and hoisting specifically.
Background technology
Currently, China's economy is in steady-state growth state, living standards of the people are quick and steadily improve, and people are to substance
Cultural demand is also at Fast growth phase, and the public buildings such as bridge are usually made using the gimmick of large-span space structure to realize
With requirement functionally.
For the steel beam structure of large span, the integral hoisting of large-tonnage loop wheel machine or profit are used again after the completion of generally use installation on ground
With tower crane, hoist engine etc. to carrying out assembled construction method after loose mail steel beam lifting in high-altitude.For integral hoisting girder steel,
Suspender is other than needing to have high structural strength, it is necessary to have rational design structure.Existing suspender is multilayer shoulder pole
Beam or frame structure, structure is more heavy, also higher to lifting requirements, and girder steel span is longer, and required suspender length is longer and more stupid
Weight, when carrying out steel beam lifting using existing suspender, the skyborne posture of girder steel is not sufficiently stable, it is not easy to and it is in place, it limits and hangs
The length of steel loading beam, and lift dangerous larger.
Invention content
It is an object of the invention to design large-span steel girder lifting device, there is structure merrily and lightheartedly to stablize, can improve steel
Beam lifting attitude stability reduces lifting degree of danger, can adapt to the advantages of different length steel beam lifting.
The present invention is achieved through the following technical solutions：
Large-span steel girder lifting device, the lifting device are symmetrical junction component, are included in described in same level upper edge
Spaced two arms of width direction of lifting device；
Both ends on the length of boom direction are respectively provided with the first lifting lug, and the bottom of the arm has the second lifting lug,
The pin hole of second lifting lug is axial vertical with the length direction of the arm, and the top of the arm has third lifting lug, institute
The pin hole for stating third lifting lug is axial parallel with the length direction of the arm；
It is fixedly connected by steelframe between two arms；Each third lifting lug connects a brace, the arm
Top be provided with triangle lifting lug, axial, the triangle parallel with the length direction of the arm of pin hole of the triangle lifting lug
Lifting lug is located at the centre position of two arms, the head of corresponding two brace in the width direction of the lifting device
End is connected to the pin hole of the corresponding side of a triangle lifting lug respectively.
When using above-mentioned setting structure, the both ends on the length direction of the arm respectively have first lifting lug,
When lifting longer girder steel, two or three described lifting devices may be selected according to the specific span of girder steel and combine, it will be all described
The arm on lifting device is connected in turn by drag-line, and the both ends of drag-line are separately connected the institute on the adjacent arm
State the first lifting lug.The length for increasing lifting device by way of intermediate connection flexible cable, can not only adapt to different spans
Girder steel lifting, and the weight of lifting device can be reduced, simplify structure, structure merrily and lightheartedly stablizes.
Further to better implement the present invention, following setting structures are especially used：It is provided between two arms
The both ends of truss, the truss are fixedly connected on the corresponding arm, realize being fixedly connected for two arms.
Further to better implement the present invention, following setting structures are especially used：It is described on each arm
The quantity of second lifting lug is two, length of two second lifting lugs on the same arm along the arm at place
It arranges successively in direction.
When using above-mentioned setting structure, second lifting lug is used to connect girder steel by drag-line and be lifted, in an institute
It states and the ability that two second lifting lugs can make the single arm have independent hoisting steel beam is set on arm, it is more selecting
When a arm combined hanging, continuous triangle can be formed along the length direction of girder steel between drag-line, girder steel, the arm
Shape structure ensures to ensure that girder steel deformation extent is smaller while stress is safe, eliminate due to attached caused by deformation or unbalance stress
Add stress.
Further to better implement the present invention, following setting structures are especially used：It is described on each arm
The quantity of third lifting lug is two, length of the two third lifting lugs on the same arm along the arm at place
Direction is arranged successively, and the quantity of the triangle lifting lug is two, two triangle lifting lugs along the arm length direction according to
Secondary arrangement.
Further to better implement the present invention, following setting structures are especially used：In the width of the lifting device
On direction isosceles triangular structure is formed between corresponding two brace triangle lifting lug in connection.
Further to better implement the present invention, following setting structures are especially used：Spacing is big between two arms
In the width for the girder steel to be lifted.
When using above-mentioned setting structure, it is ensured that the two arm spacing of the lifting device are more than the width of girder steel, make
When second lifting lug being located on two arms is connect by drag-line with girder steel respectively, make two slingers
Tool, drag-line, girder steel form trapezoidal connection structure, ensure stable structure, stress balance, avoid excessive during steel beam lifting
It is swung left and right.
Further to better implement the present invention, following setting structures are especially used：Spacing is between two arms
1.2 times of the width for the girder steel to be lifted.
It is another object of the present invention to provide large-span steel girder hoisting, have steel beam lifting attitude stability,
Lifting degree of danger is low, can adapt to the advantages of different length steel beam lifting.
Large-span steel girder hoisting controls the lifting device using hanging device and implements lifting operation, packet to girder steel
Include following steps：
Step S1：Loose mail girder steel assembly is formed into large-span steel girder；
Step S2：The lifting device is connect with large-span steel girder；
Step S3：Lift large-span steel girder；
Step S4：Large-span steel girder in place.
Further to better implement the present invention：In step S1, hardened ground processing is carried out to construction site, by each section
Loose mail girder steel is transported to construction site using lifting devices such as cranes and carries out assembled formation large-span steel girder, and in large-span steel girder
Top connect multiple 4th lifting lugs, the quantity of the 4th lifting lug is equal to the quantity of second lifting lug, the 4th lifting lug
Length direction along the large-span steel girder is arranged successively.
Further to better implement the present invention：Further include step S01：According to large-span steel before the step S1
The one or more lifting devices of length selection of beam；When the lifting device is multiple, multiple lifting devices are along institute
The length direction for stating large-span steel girder is arranged successively, and two the first parallel steel wire ropes are arranged between the adjacent lifting device and draw
The both ends of rope, the first steel wire rope drag-line are separately connected corresponding first lifting lug；It is connected on each second lifting lug
Second steel wire rope drag-line, the second steel wire rope drag-line is for connecting the 4th lifting lug.
The present invention has the following advantages and beneficial effects：
(1) in the present invention, the both ends on the length direction of the arm respectively have first lifting lug, longer lifting
When girder steel, two or three described lifting devices may be selected according to the specific span of girder steel and combine, by all lifting devices
On the arm be connected in turn by drag-line, described first that the both ends of drag-line are separately connected on the adjacent arm hangs
Ear.The length for increasing lifting device by way of intermediate connection flexible cable, can not only adapt to the girder steel of different spans
Lifting, and the weight of lifting device can be reduced, simplify structure.
(2) in the present invention, the lifting device is introduced in large-span steel girder lifting construction and carries out hanging for large-span steel girder
Dress can select multiple lifting device independent assortments, the lifting device structure after combination merrily and lightheartedly to stablize and can improve steel
Beam lifts the stability of posture, and adapts to the large-span steel girder of different length.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is main structure diagram when being lifted to large-span steel girder using large-span steel girder lifting device；
Fig. 2 is side structure schematic view when being lifted to large-span steel girder using large-span steel girder lifting device；
Fig. 3 is the overlooking structure diagram of the large-span steel girder lifting device (to show brace)；
In figure label for：
1- arms；The first lifting lugs of 1a-；The second lifting lugs of 1b-；1c- third lifting lugs；
2- braces；
3- triangle lifting lugs；
The 4th lifting lugs of 4-；
5- the first steel wire rope drag-lines；
6- the second steel wire rope drag-lines.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1：
Large-span steel girder lifting device has structure is merrily and lightheartedly stable, can improve the reduction of steel beam lifting attitude stability to hang
Dress degree of danger can adapt to the advantages of different length steel beam lifting, as shown in Figure 1, Figure 2, Figure 3 shows, be specifically arranged to following knots
Structure：
The lifting device is symmetrical steel construction piece, including two arms 1, two arms 1 are spaced in same level
Arrangement setting, when being lifted with the lifting device, two arms 1 are located at the left and right sides of girder steel, namely the width along girder steel
It is intervally arranged on direction；It is provided with the steelframe of a molten steel placing flat between two arms 1, the both ends of steelframe are by the inside of two arms 1
It is fixedly connected, so that two arms 1 is formed an overall structure, wherein steelframe is generally truss, and the both ends of truss are fixedly connected on accordingly
On arm 1, being fixedly connected for two arms 1 is realized.
There are two the first lifting lug 1a, two the first lifting lug 1a to arrange and divide along the length direction of arm 1a for tool on arm 1
It is not fixed on the both ends on the length direction of arm 1, the pin hole of the first lifting lug 1a is axial vertical with the length direction of arm 1.
In the bottom of arm 1, the axial length direction with arm 1 of the pin hole with the second lifting lug 1b, the second lifting lug 1b hangs down
Directly.
Have third lifting lug 1c, the pin hole of third lifting lug 1c axial flat with the length direction of arm 1 at the top of arm 1
Row.
Each one brace 2 of third lifting lug 1c connections, triangle lifting lug 3 is provided in the top of arm 1, triangle lifting lug 3
Pin hole is axial parallel with the length direction of arm 1, and triangle lifting lug 3 is located at the centre position of two arms 1, in the width of the lifting device
The head end for spending corresponding two brace 2 on direction is connected to the pin hole of the corresponding side of a triangle lifting lug 3 respectively, forms tripod
Structural member.
Preferably, different braces 2 tilt equal angular towards inside, corresponding two in the width direction of lifting device
Isosceles triangular structure is formed between the triangle lifting lug 3 in connection of brace 2.
When using above-mentioned setting structure, both ends on the length direction of arm 1 respectively have the first lifting lug 1a, lifting compared with
When long girder steel, two or three described lifting devices may be selected according to the specific span of girder steel and combine, it will be on all lifting devices
Arm 1 be connected in turn by drag-line, the both ends of drag-line are separately connected the first lifting lug 1a on adjacent arm 1.In
Between the mode of connection flexible cable increase the length of lifting device, the lifting of the girder steel of different spans can not only be adapted to, and
The weight of lifting device can be reduced, simplify structure, structure is merrily and lightheartedly stablized.
Preferably, the quantity set of the second lifting lug 1b on each arm 1 be two, by same arm 1 this two
A second lifting lug 1b arranges successively along the length direction of the arm 1 at place.Second lifting lug 1b be used for by drag-line connection girder steel into
The ability that two the second lifting lug 1b can make single arm 1 have independent hoisting steel beam is arranged in row lifting on an arm 1,
When selecting multiple 1 combined hangings of arm, continuous three can be formed along the length direction of girder steel between drag-line, girder steel, arm 1
Angular structure ensures to ensure that girder steel deformation extent is smaller while stress is safe, eliminate due to caused by deformation or unbalance stress
Additional stress.
Meanwhile the quantity set of the third lifting lug 1c on each arm 1 is two, by the two on same arm 1
Third lifting lug 1c arranges successively along the length direction of the arm 1 at place, and the quantity set of triangle lifting lug 3 is two, by two
A triangle lifting lug 3 is arranged successively along the length direction of arm 1.
Preferably, in practice of construction operation, spacing between two arms 1 can be set greater than the girder steel to be lifted
Width, for example by spacing between two arms 1 be 1.2 times of width of the girder steel to be lifted.It has been lifted since in this way by ensuring
Two arms, 1 spacing of tool is more than the width of girder steel, and the second lifting lug 1b being located on two arms 1 is made to pass through drag-line respectively
When being connect with girder steel, two lifting devices, drag-line, girder steel is made to form trapezoidal connection structure, ensures stable structure, stress balance,
Avoid excessive during steel beam lifting be swung left and right.
Embodiment 2：
The present embodiment is that the lifting device using above-described embodiment carries out large-span steel on the basis of the above embodiments
The lifting construction of beam present embodiments provides a kind of large-span steel girder hoisting, has steel beam lifting attitude stability, lifting
Degree of danger is low, can adapt to the advantages of different length steel beam lifting.
This technique controls the lifting device using hanging device and implements lifting operation to girder steel, includes the following steps：
Step S1：The length of the large-span steel girder lifted as needed before assembled large-span steel girder selects one or more
A lifting device；When selected lifting device is multiple, the length direction by multiple lifting devices along large-span steel girder is arranged successively,
Two the first parallel steel wire rope drag-lines 5 are set between adjacent lifting device, and the both ends of the first steel wire rope drag-line 5 are separately connected phase
It answers on the first lifting lug 1a, two lifting devices is cascaded；Later second steel is connected on every 1 second lifting lug 1b
Cord drag-line 6.
Step S2：Hardened ground processing is carried out to construction site, each section of loose mail girder steel is transported using lifting devices such as cranes
It transports to construction site and carries out assembled formation large-span steel girder, and the top welding of large-span steel girder after the completion of assembly is upper multiple
4th lifting lug 4, wherein the quantity of the 4th lifting lug 4 is equal to the quantity of the second lifting lug 1b, length of the 4th lifting lug 4 along large-span steel girder
It arranges successively in degree direction.For example when selecting two lifting devices, upper four are respectively welded at the top of the both sides of large-span steel girder
A 4th lifting lug 4, four the 4th lifting lugs 4.
Step S3：Lifting device is connect with large-span steel girder, specifically, by the free end of the second steel wire rope drag-line 6 according to
It is secondary to be connected on corresponding 4th lifting lug 4, make to form continuous triangle along the length direction of girder steel between drag-line, girder steel, arm 1
Shape structure ensures to ensure that girder steel deformation extent is smaller while stress is safe, eliminate due to attached caused by deformation or unbalance stress
Add stress.
Step S4：Large-span steel girder is lifted, is connect with the pin hole on 3 top of triangle lifting lug by drag-line using loop wheel machine, slowly
It is lifted to precalculated position.When lifting, a lifting device is lifted by crane using a loop wheel machine, and more loop wheel machines answer synchronous hoisting.
Step S5：Large-span steel girder in place.
The lifting that lifting device carries out large-span steel girder is introduced in large-span steel girder lifting construction, can select multiple hang
Holding tool is freely combined, and the stability of steel beam lifting posture is merrily and lightheartedly stablized and can be improved to the lifting device structure after combination, and
Adapt to the large-span steel girder of different length.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.
Claims (10)
1. large-span steel girder lifting device, it is characterised in that：The lifting device is symmetrical junction component, is included in same level
Spaced two arms (1) of width direction of lifting device described in upper edge；
Both ends on arm (1) length direction are respectively provided with the first lifting lug (1a), and the bottom of the arm (1) has second
The pin hole of lifting lug (1b), second lifting lug (1b) is axial vertical with the length direction of the arm (1), the arm (1)
Top has third lifting lug (1c), the pin hole of the third lifting lug (1c) axial parallel with the length direction of the arm (1)；
It is fixedly connected by steelframe between two arms (1)；Each third lifting lug (1c) connects a brace (2), institute
It states and is provided with triangle lifting lug (3) above arm (1), the axial length with the arm (1) of pin hole of the triangle lifting lug (3)
Direction is parallel, and the triangle lifting lug (3) is located at the centre position of two arms (1), in the width direction of the lifting device
The head end of upper corresponding two brace (2) is connected to the pin hole of the corresponding side of a triangle lifting lug (3) respectively.
2. large-span steel girder lifting device according to claim 1, it is characterised in that：It is arranged between two arms (1)
There are truss, the both ends of the truss to be fixedly connected on the corresponding arm (1), realizes being fixedly connected for two arm (1).
3. large-span steel girder lifting device according to claim 2, it is characterised in that：Institute on each arm (1)
The quantity for stating the second lifting lug (1b) is two, and two second lifting lugs (1b) on the same arm (1) are along place
The length direction of the arm (1) is arranged successively.
4. large-span steel girder lifting device according to claim 3, it is characterised in that：Institute on each arm (1)
The quantity for stating third lifting lug (1c) is two, and two third lifting lugs (1c) on the same arm (1) are along place
The length direction of the arm (1) is arranged successively, and the quantity of the triangle lifting lug (3) is two, two triangle lifting lugs (3)
Length direction along the arm (1) is arranged successively.
5. large-span steel girder lifting device according to claim 4, it is characterised in that：In the width side of the lifting device
Isosceles triangular structure is formed between upward corresponding two brace (2) the triangle lifting lug (3) in connection.
6. large-span steel girder lifting device according to claim 5, it is characterised in that：Spacing between two arms (1)
More than the width for the girder steel to be lifted.
7. large-span steel girder lifting device according to claim 6, it is characterised in that：Spacing between two arms (1)
It is 1.2 times of the width for the girder steel to be lifted.
8. large-span steel girder hoisting, which is characterized in that hung using hanging device control claim 1-6 any one of them
Holding tool implements lifting operation to girder steel, includes the following steps：
Step S1：Loose mail girder steel assembly is formed into large-span steel girder；
Step S2：The lifting device is connect with large-span steel girder；
Step S3：Lift large-span steel girder；
Step S4：Large-span steel girder in place.
9. large-span steel girder hoisting according to claim 8, it is characterised in that：In step S1, to construction site into
The processing of row hardened ground, by each section of loose mail girder steel using the lifting devices such as crane transport to construction site carry out assembled formation greatly across
Girder steel is spent, and multiple 4th lifting lugs (4) are connected at the top of large-span steel girder, the quantity of the 4th lifting lug (4) is equal to described
The quantity of second lifting lug (1b), the 4th lifting lug (4) are arranged successively along the length direction of the large-span steel girder.
10. large-span steel girder hoisting according to claim 9, it is characterised in that：Further include step S01：Described
According to the one or more lifting devices of the length of large-span steel girder selection before step S1；The lifting device is multiple
When, multiple lifting devices are arranged successively along the length direction of the large-span steel girder, are set between the adjacent lifting device
Two the first parallel steel wire rope drag-lines (5) are set, the both ends of the first steel wire rope drag-line (5) are separately connected corresponding described first
Lifting lug (1a)；The second steel wire rope drag-line (6), the second steel wire rope drag-line (6) are connected on each second lifting lug (1b)
For connecting the 4th lifting lug (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047702.XA CN108797375A (en) | 2018-09-10 | 2018-09-10 | Large-span steel girder lifting device and hoisting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811047702.XA CN108797375A (en) | 2018-09-10 | 2018-09-10 | Large-span steel girder lifting device and hoisting |
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| Publication Number | Publication Date |
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| CN108797375A true CN108797375A (en) | 2018-11-13 |
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ID=64082194
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| CN201811047702.XA Pending CN108797375A (en) | 2018-09-10 | 2018-09-10 | Large-span steel girder lifting device and hoisting |
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| CN113090023A (en) * | 2021-03-31 | 2021-07-09 | 德才装饰股份有限公司 | Large-span steel beam hoisting construction method |
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| CN107419665A (en) * | 2017-08-07 | 2017-12-01 | 中铁大桥局集团有限公司 | A kind of method of large-span steel girder hoisting appliance and its hoisting steel beam |
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