CN207143742U - A kind of large-span steel girder hoisting appliance - Google Patents
A kind of large-span steel girder hoisting appliance Download PDFInfo
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- CN207143742U CN207143742U CN201720977331.XU CN201720977331U CN207143742U CN 207143742 U CN207143742 U CN 207143742U CN 201720977331 U CN201720977331 U CN 201720977331U CN 207143742 U CN207143742 U CN 207143742U
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- drag
- girder
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- shoulder pole
- span steel
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Abstract
The utility model discloses a kind of large-span steel girder hoisting appliance, it is used to lift by crane large-span steel girder, including two spaced arms, each arm includes shoulder pole girder and two the first drag-lines, and the top of two first drag-lines is connected to corresponding shoulder pole girder bottom both sides；The suspender also includes the second drag-line, and second drag-line is horizontally disposed and its both ends is fixedly connected with two shoulder pole girders respectively.The utility model reduces working space, and structure is slim and graceful, convenient disassembly, goes for the steel beam lifting operation of the crane gear and different spans of different model.
Description
Technical field
It the utility model is related to large scale structure lifting field, and in particular to a kind of large-span steel girder hoisting appliance.
Background technology
In existing bridge construction, the method for generally use free cantilever erection is constructed, using the method, it is necessary in steel
Beam rear end ballast or anchoring, its temporary project amount are huge.If constructed using the method for large-span steel girder, hang
The front end of arm deforms larger, pier constructional difficulties on the front end of cantilever, dangerous larger.
Therefore, in for span bridge construction, generally select on land by large-span steel girder welding forming, then lead to
Installed after crossing the correct position that suspender is hung between two bridge piers.However, conventional suspender be the frame structure welded entirely or
Person's multilayer shoulder pole girder, lifting rope is controlled to change the lifting of girder steel and whereabouts by crane gear, for some large-span steel girder knots
Structure (150 meters waterborne of such as Bangladesh PADMA bridges are across steel truss girder), during using conventional suspender, one side hanger structure must be enough
The long lifting operation that could match such large-span steel girder, can so cause hanger structure very heavy, crane gear is wanted
Ask very high；On the other hand, in order to ensure that large-span steel girder both ends difference in height is unlikely to excessive, it is necessary to there is higher operation empty
Between, it is difficult to meet construction requirement.
Utility model content
For defect present in prior art, the purpose of this utility model is that providing a kind of large-span steel girder hangs
Tool, the suspender does not need long enough can be to match large-span steel girder lifting operation, while also reduces working space, and structure
Merrily and lightheartedly, convenient disassembly, the steel beam lifting operation of the crane gear and different spans of different model is gone for.
To achieve the above objectives, the utility model adopts the technical scheme that：A kind of large-span steel girder hoisting appliance, it is used
In lifting large-span steel girder, it includes：
Two spaced arms, each arm include shoulder pole girder and two the first drag-lines, and two described first draw
The top of rope is connected to corresponding shoulder pole girder bottom both sides；
Second drag-line, second drag-line is horizontally disposed and its both ends is fixedly connected with two shoulder pole girders respectively.
Further, the shoulder pole girder is in isosceles triangular structure；The shoulder pole girder includes suspension bracket and is mounted on described hang
Bottom plate under frame, first drag-line are connected to the bottom base plate.
Further, the suspension bracket includes joint and two braces, and the tops of two braces is all connected to described
On joint and bottom is connected to the bottom plate both sides.
Further, the bottom plate is in rectangular parallelepiped structure, and including connection system and two grid beams be arrangeding in parallel；The company
The both ends for being are connect to be fixedly connected with two grid beams respectively；Two of the suspension bracket hang pin and are connected in two grid beams.
Further, the top of each first drag-line is connected with anchor beam on one, and each upper anchor beam is connected to pair
The bottom for the shoulder pole girder answered.
Further, the bottom of each first drag-line is connected with anchor beam.
Further, the both ends of each lower anchor beam offer concave notches, are connected in each concave notches
Finite place piece.
Compared with prior art, the utility model has the advantage of：
(1) suspender of the present utility model uses truss structure, has the characteristics of power transmission is direct, structure is slim and graceful, assembly and disassembly
It is convenient, it is easy to down with construction.
(2) connected between two arm of the present utility model by the second drag-line of certain length, during lifting, two
Individual arm, the second drag-line and girder steel form an isosceles trapezoidal structure, and the second drag-line can resist the component of horizontal direction so that
More steady during lifting, this mode increases the length of suspender indirectly, ensure that the difference in height of girder steel left and right ends is unlikely
In excessive, the requirement to working space is reduced, also significantly reduces the weight of suspender.
(3) the utility model has modularization assembling feature, is readily transported, at the same can scene assembled, lifting
When, the second drag-line of appropriate length can be selected, so that this suspender is applied to the crane gear and different spans of different model
Girder steel lifting demand.
Brief description of the drawings
Fig. 1 is a kind of front view for large-span steel girder hoisting appliance that the utility model embodiment provides；
Fig. 2 is Fig. 1 right view；
Fig. 3 is Fig. 1 top view；
Fig. 4 is the front view for the shoulder pole girder that the utility model embodiment provides；
Fig. 5 is Fig. 4 side view；
Fig. 6 is Fig. 4 top view；
Fig. 7 is the front view for the upper anchor beam that the utility model embodiment provides；
Fig. 8 is Fig. 7 top view；
Fig. 9 is the front view for the lower anchor beam that the utility model embodiment provides；
Figure 10 is Fig. 9 top view；
Figure 11 is the front view of another structure for the shoulder pole girder that the utility model embodiment provides；
Figure 12 is Figure 11 side view；
Figure 13 is Figure 11 top view.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to shown in Fig. 1-Fig. 3, the utility model embodiment provides a kind of large-span steel girder hoisting appliance, and it is used to lift by crane
Large-span steel girder 600, it includes：
Two spaced arms, each arm includes shoulder pole girder 100 and two the first drag-lines 501, described in two
The top of first drag-line 501 is connected to the corresponding bottom both sides of shoulder pole girder 100；Because the girder steel 600 is in rectangular
Body structure, in order to ensure the stationarity of the girder steel 600 described in hoisting process, it is necessary in the both sides of girder steel 600 respectively connection one
First drag-line 501, and the line between the tie point of two first drag-lines 501 and the girder steel 600 is preferably and institute
It is vertical to state the length direction of girder steel 600, therefore, the tie point of two first drag-lines 501 and the corresponding shoulder pole girder 100 it
Between line it is preferably also vertical with the length direction of the girder steel 600.
Second drag-line 500, second drag-line 500 is horizontally disposed and its both ends is fixed with two shoulder pole girders 100 respectively
Connection, it is preferable that second drag-line 500 is provided with two, and two second drag-lines 500 are located in the same horizontal plane and parallel
Set, two second drag-lines 500 are connected to form hollow with two shoulder pole girders 100, make suspender in hoisting process more
Stabilization.
The shoulder pole girder 100 uses truss structure, and this structure has the characteristics of power transmission is direct, structure is slim and graceful, greatly
Reduce the deadweight of suspender；Connected, lifted by crane by second drag-line 500 of certain length between two arms of the suspender
During, two arms, second drag-line 500 and the girder steel 600 form an isosceles trapezoidal structure, can resist water
Square to component so that more steady during lifting, this mode increases the length of suspender indirectly, it is not necessary to directly to hanging
Tool is worked into the length that can match large-span steel girder, equally also can guarantee that the difference in height of the left and right ends of girder steel 600 is unlikely to
It is excessive, the requirement to working space is reduced, due to using flexible drag-line, not only significantly reduces the weight of suspender, also
Transport space is reduced, facilitates the transport of suspender；The utility model has modularization assembling feature, is readily transported, while can be with
Scene is assembled, and in lifting, second drag-line 500 of appropriate length can be selected, so as to suitable for different model
The lifting demand of the girder steel of crane gear and different spans.Preferential by the way of pin joint between each part, convenient installation is with tearing open
Unload.
Referring to shown in Fig. 2 and Fig. 4, further, the shoulder pole girder 100 is in isosceles triangular structure, plane where it with
The girder steel 600 is vertical；The shoulder pole girder 100 includes suspension bracket and the bottom plate being mounted under the suspension bracket, the V-shaped knot of suspension bracket
Structure, the suspension bracket are used for the lifting rope for connecting crane gear, and first drag-line 501 is connected to the bottom base plate.In order to ensure
The shoulder pole girder 100 is more stable in use, and two suspension brackets, and two suspension brackets are provided with the shoulder pole girder 100
It is arranged in parallel.
Referring to shown in Fig. 4-Fig. 5, further, the suspension bracket includes joint 101 and two braces 102, and two is described oblique
The top of pull bar 102 is all connected on the joint 101 and bottom is connected to the bottom plate both sides, herein, each part
Between it is preferential using pin joint by the way of, convenient installation is with dismantling.
Shown in Figure 6, further, the bottom plate is in rectangular parallelepiped structure, and is 103 parallel with two to set including connection
The grid beam 104 put, the connection is 103 to use steel construction, and structure is slim and graceful, reduces the weight of suspender, the grid beam 104 and institute
Girder steel 600 is stated to be arranged in parallel；The connection is that 103 both ends are fixedly connected with two grid beams 104 respectively, ensures described first
The stability of the structure of shoulder pole girder 100；Two of the suspension bracket hang pin and are connected in two grid beams 104, herein, each portion
It is preferential by the way of pin joint between part, convenient installation and dismounting.
The shoulder pole girder 100 can also be designed in isosceles trapezoidal structure, and this can be selected according to crane gear；Specifically
Shown in Figure 11, the shoulder pole girder 100 is in isosceles trapezoidal structure, while ensuring that structure stress is safe, can eliminate by
The additional stress caused by malformation or discontinuity.In order to be hung with shoulder pole girder 100 described in above-described embodiment
Frame and bottom plate are distinguished, to explain, in the present embodiment the suspension bracket of shoulder pole girder 100 and bottom plate be referred to as " the second suspension bracket " and
" the second bottom plate ", the shoulder pole girder 100 include the second suspension bracket and the second bottom plate for being mounted under second suspension bracket, and described second
Suspension bracket is used for the lifting rope for connecting crane gear, and first drag-line 501 is connected to second bottom base plate.
Referring to shown in Figure 11-Figure 12, second suspension bracket includes horizontal drawing bar 201 and two the second braces 202, described in two
The top of second brace 202 is connected to the both ends of the horizontal drawing bar 201 and bottom and is connected to second bottom plate
Both sides.
It is shown in Figure 13, it is preferable that second bottom plate is in rectangular parallelepiped structure, and is 203 and two including the second connection
Individual the second grid beam 204 be arrangeding in parallel, second connection is 203 to use steel construction, and structure is slim and graceful, reduces the weight of suspender
Amount, second grid beam 204 be arranged in parallel with the girder steel 600；Second connection be 203 both ends respectively with two described the
Two grid beams 204 are fixedly connected, and ensure the stability of the structure of shoulder pole girder 100；Two second of second suspension bracket hang pin point
It is not connected in two second grid beams 204.
Referring to shown in Fig. 7-Fig. 8, further, the top of each first drag-line 501 is connected with anchor beam 300, often
The one upper anchor beam 300 is connected to the bottom of the corresponding shoulder pole girder 100, it is preferable that connected by the way of pin joint, it is convenient
Installation and dismounting, the upper anchor beam 300 use compound section steel box girder structure, and this steel box girder is simple, and endurance is big, while
Alleviate the weight of suspender.
Referring to shown in Fig. 9-Figure 10, further, the bottom of each first drag-line 501 is connected with anchor beam 400,
Preferably, connected by the way of pin joint, convenient installation and dismounting, the lower anchor beam 400 uses compound section steel box girder structure, this
Steel box girder is simple, and endurance is big, while also mitigates the weight of suspender.
Shown in Figure 10, further, the both ends of each lower anchor beam 400 offer concave notches, Mei Yisuo
State connection finite place piece 401 in concave notches.First drag-line 501 can be quickly installed in place, it is preferable that by right
The locating part 401 answered carries out pin joint, ensures that the first drag-line 501 will not skid off described in hoisting process, safe and efficient, peace
Dress, convenient disassembly；The locating part 401 can use bearing pin or epoxy steel strand wires etc., as long as it is equal to play spacing effect
Can.
At the same time, a kind of large-span steel girder hanging method is additionally provided, it is as described above using crane gear control
Hoisting appliance implements lifting operation to the girder steel 600, and it includes：
The step of arm 100 is connected with first drag-line 501, and each first drag-line 501 and described the
The angle of two drag-lines 500 is obtuse angle, and the obtuse angle can be adjusted according to the girder steel 600 and crane gear of reality.It is excellent
Selection of land, two first drag-lines 501 included by each shoulder pole girder 100 are equal with the angle of second drag-line 500, this
For sample during lifting, first drag-line 501, second drag-line 500 and the girder steel 600 form isosceles trapezoid knot
Structure, it is ensured that the left and right ends uniform force of girder steel 600, remain horizontal during lifting, reduce working space；
The step of arm 100 is connected with second drag-line 500；
The step of first drag-line 501 is connected with the girder steel 600；
The step of arm 100 is connected with the crane gear.
Further, at least provided with two groups of connection components on the girder steel 600, connection component described in each group includes dividing
Two hangers of the both sides of girder steel 600 are not arranged on, it is preferable that two hangers described in each group included by connection component
Line is vertical with the length direction of the girder steel 600, so ensures that the girder steel 600 described in hoisting process is more steady, simultaneously
Second drag-line 500 can resist the component of horizontal direction, and first drag-line 501 is connected with each hanger.
The utility model is not limited to above-mentioned embodiment, for those skilled in the art, not
On the premise of departing from the utility model principle, some improvements and modifications can also be made, these improvements and modifications are also considered as this reality
Within new protection domain.The content not being described in detail in this specification belongs to known to professional and technical personnel in the field
Prior art.
Claims (7)
1. a kind of large-span steel girder hoisting appliance, it is used to lift by crane large-span steel girder (600), it is characterised in that it includes：
Two spaced arms, each arm includes shoulder pole girder (100) and two the first drag-lines (501), described in two
The top of first drag-line (501) is connected to corresponding shoulder pole girder (100) the bottom both sides；
Second drag-line (500), second drag-line (500) is horizontally disposed and its both ends is solid with two shoulder pole girders (100) respectively
Fixed connection.
A kind of 2. large-span steel girder hoisting appliance as claimed in claim 1, it is characterised in that：The shoulder pole girder (100) in etc.
Lumbar triangle shape structure；The shoulder pole girder (100) includes suspension bracket and the bottom plate being mounted under the suspension bracket, first drag-line
(501) it is connected to the bottom base plate.
A kind of 3. large-span steel girder hoisting appliance as claimed in claim 2, it is characterised in that：The suspension bracket includes joint
(101) and two braces (102), the top of two braces (102) is all connected on the joint (101) and bottom point
The bottom plate both sides are not connected to.
A kind of 4. large-span steel girder hoisting appliance as claimed in claim 2, it is characterised in that：The bottom plate is in cuboid knot
Structure, and including connection system (103) and two grid beams (104) be arrangeding in parallel；It is described connection system (103) both ends respectively with two institutes
Grid beam (104) is stated to be fixedly connected；Two of the suspension bracket hang pin and are connected on two grid beams (104).
A kind of 5. large-span steel girder hoisting appliance as claimed in claim 1, it is characterised in that：Each first drag-line
(501) top is connected with anchor beam on one (300), and each upper anchor beam (300) is connected to the corresponding shoulder pole girder (100)
Bottom.
A kind of 6. large-span steel girder hoisting appliance as claimed in claim 1, it is characterised in that：Each first drag-line
(501) bottom is connected with anchor beam (400).
A kind of 7. large-span steel girder hoisting appliance as claimed in claim 6, it is characterised in that：Each lower anchor beam (400)
Both ends offer concave notches, finite place piece (401) is connected in each concave notches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977331.XU CN207143742U (en) | 2017-08-07 | 2017-08-07 | A kind of large-span steel girder hoisting appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977331.XU CN207143742U (en) | 2017-08-07 | 2017-08-07 | A kind of large-span steel girder hoisting appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207143742U true CN207143742U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720977331.XU Active CN207143742U (en) | 2017-08-07 | 2017-08-07 | A kind of large-span steel girder hoisting appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-08-07 CN CN201720977331.XU patent/CN207143742U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107419665B (en) * | 2017-08-07 | 2023-11-03 | 中铁大桥局集团有限公司 | Large-span steel beam hoisting sling and steel beam hoisting method thereof |
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