CN109295862A - A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method - Google Patents
A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method Download PDFInfo
- Publication number
- CN109295862A CN109295862A CN201811432085.5A CN201811432085A CN109295862A CN 109295862 A CN109295862 A CN 109295862A CN 201811432085 A CN201811432085 A CN 201811432085A CN 109295862 A CN109295862 A CN 109295862A
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- Prior art keywords
- wheel machine
- loop wheel
- girder
- stiff girder
- hoist cable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
Abstract
The invention belongs to stiffening girder of suspension bridge mounting technique fields, and in particular to a kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method.Loop wheel machine Zhi Li switches connection on main push-towing rope, through the loop wheel machine steel strand wires and stiff girder of hoist cable and loop wheel machine, and that realizes stiff girder swings shifting installation.Wherein, stiff girder passes through suspender with hoist cable and loop wheel machine steel strand wires and suspender conversion tool is connect, the suspender conversion tool realizes that the suspension centre of deck erection gantry and the center of gravity of stiff girder are on the same section during the entire process of swinging shifting, it is ensured that stiff girder is steady in entire work progress.This method is not needed using large-scale equipment, is influenced by external environment small, installs simple and fast, easy to operate, construction safety provides helpful reference for the construction of similar bridge, it can be achieved that swing shifting installation at a distance.
Description
Technical field
The invention belongs to stiffening girder of suspension bridge mounting technique fields, and in particular to a kind of suspension bridge without horizontal traction force adds
Strength beam swings shifting installation method.
Background technique
Suspension bridge is paid attention to its Great span ability by builder, and the work across rivers, straits, valley is widely used in
Cheng Zhong.Currently, the more application tractions of shifting that swing of stiff girder swing shifting.Traction swings shifting i.e. deck erection gantry and promotes beam section to after swinging shifting height,
Using hoist engine horizontally tracting crane hanger, deviates beam section actively from lifting position to installation site, correspond to hoist cable in beam section
After the completion of connecting with the beam section, shifting is swung in deck erection gantry unloading, the traction for completing the beam section.Under normal circumstances, it is shorter to swing shifting distance
When (allowed band etc of the inclination angle of deck erection gantry in loop wheel machine), shifting is swung using traction.
Due to the distinctive structure of suspension bridge, portion segment stiff girder is located at the shallow water area that ships that transport can not be reached directly
Or land, loop wheel machine can not direct vertical lifting, the installation of this partial region beam section need to be solved using measure.
Summary of the invention
The purpose of the present invention is to provide a kind of stiffening girder of suspension bridge without horizontal traction force to swing shifting installation method, overcomes portion
Segmented stiff girder is located at the shallow water area or land that ships that transport can not be reached directly, and loop wheel machine can not direct vertical lifting
Problem.
Technical solution provided by the invention is as follows:
A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method, and loop wheel machine Zhi Li by hoist cable and is hung on main push-towing rope
The loop wheel machine steel strand wires of machine and stiff girder switch connection, and that realizes stiff girder swings shifting installation.
A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method, the specific steps are as follows:
Step 1) by loop wheel machine Zhi Li on main push-towing rope, using loop wheel machine steel strand wires vertical lifting stiff girder to swing move height；
Step 2 pulls at the lower end to stiff girder of hoist cable, and the lower end of hoist cable is made to be connected with stiff girder；
Step 3) loop wheel machine 1, which in stiff girder load transfer to hoist cable, will be realized, switches connection for the first time, under hoist cable pulling force effect,
Stiff girder is swung by loop wheel machine position moves to hoist cable position, completes a displacement；
Step 4) loop wheel machine runs to another position along main push-towing rope and fixes, and pulls at loop wheel machine steel strand wires lower end to stiff girder, makes loop wheel machine
Steel strand wires lower end is connected again with stiff girder；
For step 5) hoist cable by stiff girder load transfer to loop wheel machine, connection is switched in realization for the second time, is made in loop wheel machine tension of steel strand
Under, stiff girder is swung by hoist cable position moves to loop wheel machine position, completes another displacement, and two shifting processes constitute one and swing
Move circulation；
If step 6) one is swung after shifting recycles and not up to swings pan position, draws other hoist cables and carry out swinging shifting, repeat step 2-step
It is rapid 5), until reach stiff girder swing pan position, that completes stiff girder swings shifting.
Stiff girder passes through suspender with hoist cable and loop wheel machine steel strand wires and suspender conversion tool is connect, the suspender conversion tool
Including connecting plate one, connecting plate two, fanning strip and set square, the both ends of the connecting plate one and connecting plate two are respectively equipped with connection
Hole, connecting hole is equipped at three angles of the set square, and the arc of the fanning strip is equipped with multiple lifting lug holes, is equipped at segment angle
Lifting lug hole；
Two connecting holes of the connecting plate one respectively with a connecting hole pin joint on set square and one on fanning strip arc
Connecting hole pin joint, two connecting holes of the connecting plate two respectively with the connecting hole pin joint on suspender and segment angle, the triangle
Other two connecting hole and hoist cable on plate pitch ear pin joint, and the loop wheel machine steel strand wires pass through on loop wheel machine anchorage and fanning strip arc
One connecting hole pin joint.
After shifting circulation is swung in completion one, the connection of hoist cable and stiff girder is released.
One is swung the two sides that twice position of the loop wheel machine on main push-towing rope in shifting circulation is located at hoist cable.
Hoist cable and loop wheel machine steel strand wires are plumbness in step 1).
Realize that the load that loop wheel machine bears stiff girder is zero when switching connection for the first time；When connection is switched in realization for the second time, hang
The load that rope bears stiff girder is zero.
Stiff girder load transfer process in step 3) and step 5) is actively to unload step by step.
It is to be connected using artificial drawing hoist cable with stiff girder in step 2, is twisted using artificial drawing loop wheel machine steel in step 4)
Line is connected with stiff girder.
The beneficial effects of the present invention are: this method does not need to be influenced small, installation by external environment using large-scale equipment
Simple and fast, easy to operate, construction safety is installed, it can be achieved that swinging shifting at a distance, provides beneficial borrow for the construction of similar bridge
Mirror.
It is described in further details below in conjunction with attached drawing.
Detailed description of the invention
Fig. 1 is flow diagram of the invention；
Fig. 2 is a kind of implementation diagram of suspender conversion tool；
Fig. 3 is suspender conversion tool construction process figure.
In figure: 1, loop wheel machine；2, main push-towing rope；3, loop wheel machine steel strand wires；4, hoist cable；5, stiff girder；6, suspender conversion tool；7, it connects
Plate one；8, connecting plate two；9, fanning strip；10, set square；11, suspender；12, hoist cable pitches ear；13, loop wheel machine anchorage.
Specific embodiment
Embodiment 1:
It present embodiments provides a kind of stiffening girder of suspension bridge without horizontal traction force and swings shifting installation method, loop wheel machine 1 is stood in main push-towing rope 2
On, it is connect by the loop wheel machine steel strand wires 3 of hoist cable 4 and loop wheel machine 1 with switching for stiff girder 5, that realizes stiff girder 5 swings shifting installation.
The method overcome portion segment stiff girders 5 to be located at the shallow water area or land that ships that transport can not be reached directly
On, loop wheel machine 1 can not direct vertical lifting the problem of.
Embodiment 2:
On the basis of embodiment 1, a kind of stiffening girder of suspension bridge without horizontal traction force as shown in Figure 1 is present embodiments provided
Swing shifting installation method, the specific steps are as follows:
Step 1) stands loop wheel machine 1 on main push-towing rope 2, using 3 vertical lifting stiff girder 5 of loop wheel machine steel strand wires to swing move height；
Step 2 pulls at the lower end to stiff girder 5 of hoist cable 4, and the lower end of hoist cable 4 is made to be connected with stiff girder 5；
Step 3) loop wheel machine 1, which in stiff girder 5 load transfer to hoist cable 4, will be realized, switches connection for the first time, in 4 pulling force effect of hoist cable
Under, stiff girder 5 is swung by 1 position of loop wheel machine moves to 4 position of hoist cable, completes a displacement；
Step 4) loop wheel machine 1 runs to another position along main push-towing rope 2 and fixes, and pulls at loop wheel machine steel strand wires 3 lower end to stiff girder 5, makes
3 lower end of loop wheel machine steel strand wires is connected again with stiff girder 5；
For step 5) hoist cable 4 by stiff girder 5 load transfer to loop wheel machine 1, connection is switched in realization for the second time, is drawn in loop wheel machine steel strand wires 3
Under power effect, stiff girder 5 is swung by 4 position of hoist cable moves to 1 position of loop wheel machine, completes another displacement, two shifting process structures
Shifting circulation is swung at one；
If step 6) one is swung after shifting recycles and not up to swings pan position, draws other hoist cables 4 and carry out swinging shifting, repeat step 2-
Step 5), until reaching stiff girder 5 swings pan position, that completes stiff girder 5 swings shifting.
As shown in Figure 1, hoist cable 4 and loop wheel machine steel strand wires 3 are plumbness in step 1).Loop wheel machine steel strand wires 3 in step 2
For plumbness, hoist cable 4 and loop wheel machine steel strand wires 3 have angle；Hoist cable 4 is plumbness in step 3) and step 4), and loop wheel machine steel twists
Line 3 and hoist cable 4 have angle；Loop wheel machine steel strand wires 3 are plumbness in step 5), and hoist cable 4 and loop wheel machine steel strand wires 3 have angle；Step
6) hoist cable 4 and loop wheel machine steel strand wires 3 are plumbness in.After shifting circulation is swung in completion one, the company of hoist cable 4 and stiff girder 5 is released
It connects.
5 load of stiff girder is on loop wheel machine steel strand wires 3 in step 1) and step 2；5 lotus of stiff girder in step 3) and step 4)
It is loaded on hoist cable 4；5 load of stiff girder is on loop wheel machine steel strand wires 3 in step 5) and step 6).
As shown in Figure 1, one is swung and moves the two sides that twice position of the loop wheel machine 1 on main push-towing rope 2 in circulation is located at hoist cable 4.
Realize that the load that loop wheel machine 1 bears stiff girder 5 is zero when switching connection for the first time；When connection is switched in realization for the second time,
The load that hoist cable 4 bears stiff girder 5 is zero.
In the present embodiment, the 5 load transfer process of stiff girder in step 3) and step 5) is actively to unload step by step.
It is to be connected using artificial drawing hoist cable 4 with stiff girder 5 in step 2, is using artificial drawing loop wheel machine steel in step 4)
Twisted wire 3 is connected with stiff girder 5.
Embodiment 3:
On the basis of embodiment 2, present embodiments provides a kind of stiffening girder of suspension bridge without horizontal traction force and swing and move installation side
Method, stiff girder 5 are connect by suspender 11 and suspender conversion tool 6 with hoist cable 4 and loop wheel machine steel strand wires 3, and the suspender converts work
Filling 6 includes connecting plate 1, connecting plate 28, fanning strip 9 and set square 10, the both ends point of the connecting plate 1 and connecting plate 28
Not She You connecting hole, connecting hole is equipped at three angles of the set square 10, the arc of the fanning strip 9 is equipped with multiple lifting lugs
Hole is equipped with lifting lug hole at segment angle；
Two connecting holes of the connecting plate 1 are respectively and on 9 arc of a connecting hole pin joint and fanning strip on set square 10
One lifting lug hole pin joint, two connecting holes of the connecting plate 28 respectively with the lifting lug hole pin joint on suspender 11 and segment angle, institute
The other two connecting hole and hoist cable stated on set square 10 pitch 12 pin joint of ear, and the loop wheel machine steel strand wires 3 pass through loop wheel machine anchorage 13
With a lifting lug hole pin joint on 9 arc of fanning strip.As shown in Figure 2.
Since the center of gravity of the permanent lifting lug of stiff girder 5 and 5 segment of stiff girder is not on the same section.Shifting is swung using hoist cable 4
When, to ensure that stiff girder 5 is steady in entire work progress, swinging the hoist cable 4 diverted from one use to another cannot be with the permanent lifting lug phase of stiff girder 5
Even, it is necessary to the suspension centre and stiff girder 5 of the deck erection gantry 1 during the entire process of swinging shifting are realized by a suspender conversion tool 6
Center of gravity on the same section.
As shown in Figure 2 and Figure 3, suspender conversion tool 6 includes connecting plate 1, connecting plate 28, fanning strip 9 and set square 10,
Wherein hoist cable 4 is connected by set square 10 and connecting plate with fanning strip 9, and deck erection gantry anchorage 13 is directly connected with fanning strip 9,
Suspender 11 is connected by connecting plate 28 with fanning strip 9, and each junction is all made of pin joint, it is ensured that is able to rotate during swinging and moving.It swings
When shifting, by the rotation of fanning strip 9, the conversion by the load of beam section between deck erection gantry 1 and hoist cable 4 is realized.When will carry out
When the conversion in multiple periods, it can be realized by increasing the lifting lug hole of fanning strip 9.
Embodiment 4:
On the basis of embodiment 2, present embodiments provides a kind of stiffening girder of suspension bridge without horizontal traction force and swing and move installation side
Method, steps are as follows:
Step 1: loop wheel machine 1 is using 3 vertical lifting stiff girder 5 of loop wheel machine steel strand wires to swinging pan position；
Step 2: artificial drawing hoist cable 4 is connected with stiff girder 5；
Step 3: loop wheel machine 1 unloads the load of stiff girder 5 actively, step by step, hoist cable 4 step by step, driven bearing by stiff girder 5 load, directly
The load that stiff girder 5 is born to loop wheel machine 1 is zero, i.e. the whole loads for bearing stiff girder 5 of hoist cable 4, and stiff girder 5 is in no horizontally tracting
It under the action of power, only relies on to be self-possessed and swings the vertical cross section position for moving to hoist cable 4 from the vertical cross section position of loop wheel machine 1, will put more energy into
In beam 5 load transfer to hoist cable 4, and complete a displacement；
Step 4: after stiff girder 5 reaches the vertical cross section position of hoist cable 4, when the load of the receiving stiff girder 5 of loop wheel machine 1 is 0, releasing is hung
Connection between machine steel strand wires 3 and stiff girder 5, loop wheel machine 1 run to next pan position of swinging along main push-towing rope 2 and fix, and artificial drawing is hung
Machine steel strand wires 3 are connected with stiff girder 5；
Step 5: 1 active of loop wheel machine, multistage loadings, it will be in stiff girder 5 load transfer to loop wheel machine 1.From the point of view of stress, when hanging
When machine 1 all bears 5 load of stiff girder, i.e., the load that hoist cable 4 bears stiff girder 5 is zero；From the point of view of the position of stiff girder 5, add
Strength beam 5 is gradually swung by 4 position of hoist cable in the case where no horizontal drag power moves to 1 position of loop wheel machine, completes another displacement, this
Two shifting processes constitute one and swing shifting circulation；
Step 6: the connection for releasing hoist cable 4 and steel box-girder can pull other hoist cables 4 again and carry out swinging shifting if also needing to swing shifting, repeat
2-5 step successively carries out.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.The component that embodiment does not describe in detail
With the well-known components and common structure or conventional means of the structure category industry, do not describe one by one here.
Claims (9)
1. a kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method, it is characterised in that: loop wheel machine (1) Zhi Li is in main push-towing rope
(2) it on, is connect, is realized stiff girder (5) with switching for stiff girder (5) by the loop wheel machine steel strand wires (3) of hoist cable (4) and loop wheel machine (1)
Swing shifting installation.
2. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 1 swings shifting installation method, feature exists
In, the specific steps are as follows:
Step 1) by loop wheel machine (1) Zhi Li on main push-towing rope (2), using loop wheel machine steel strand wires (3) vertical lifting stiff girder (5) to swing move it is high
Degree；
Step 2 pulls at the lower end to stiff girder (5) of hoist cable (4), and the lower end of hoist cable (4) is made to be connected with stiff girder (5)；
Step 3) loop wheel machine (1), which in stiff girder (5) load transfer to hoist cable (4), will be realized, switches connection for the first time, in hoist cable (4)
Under pulling force effect, stiff girder (5) is swung by loop wheel machine (1) position moves to hoist cable (4) position, completes a displacement；
Step 4) loop wheel machine (1) runs to another position along main push-towing rope (2) and fixes, drawing loop wheel machine steel strand wires (3) lower end to stiff girder
(5) at, loop wheel machine steel strand wires (3) lower end is made to be connected again with stiff girder (5)；
For step 5) hoist cable (4) by stiff girder (5) load transfer to loop wheel machine (1), connection is switched in realization for the second time, is twisted in loop wheel machine steel
Under line (3) pulling force effect, stiff girder (5) is swung by hoist cable (4) position moves to loop wheel machine (1) position, completes another displacement, and two
A shifting process constitutes one and swings shifting circulation；
If step 6) one is swung after shifting recycles and not up to swings pan position, draws other hoist cables (4) and carry out swinging shifting, repeat step
2)-step 5), until reaching stiff girder (5) swings pan position, that completes stiff girder (5) swings shifting.
3. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 2 swings shifting installation method, feature exists
In: stiff girder (5) is connect by suspender (11) and suspender conversion tool (6) with hoist cable (4) and loop wheel machine steel strand wires (3), described
Suspender conversion tool (6) includes connecting plate one (7), connecting plate two (8), fanning strip (9) and set square (10), the connecting plate one
(7) and the both ends of connecting plate two (8) are respectively equipped with connecting hole, and connecting hole is equipped at three angles of the set square (10), described
The arc of fanning strip (9) is equipped with multiple lifting lug holes, is equipped with lifting lug hole at segment angle；
Two connecting holes of the connecting plate one (7) respectively with the connecting hole pin joint and fanning strip (9) on set square (10)
A connecting hole pin joint on arc, two connecting holes of the connecting plate two (8) respectively with the company on suspender (11) and segment angle
Hole pin joint is connect, the other two connecting hole on the set square (10) and hoist cable pitch ear (12) pin joint, the loop wheel machine steel strand wires (3)
Pass through a connecting hole pin joint on loop wheel machine anchorage (13) and fanning strip (9) arc.
4. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 2 swings shifting installation method, feature exists
In: after shifting circulation is swung in completion one, release the connection of hoist cable (4) and stiff girder (5).
5. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 2 swings shifting installation method, feature exists
In: one is swung the two sides moved twice position of the loop wheel machine (1) on main push-towing rope (2) in circulation and be located at hoist cable (4).
6. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 2 swings shifting installation method, feature exists
In: hoist cable (4) and loop wheel machine steel strand wires (3) they are plumbness in step 1).
7. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 2 swings shifting installation method, feature exists
In: realize that the load that loop wheel machine (1) bears stiff girder (5) is zero when switching connection for the first time；When connection is switched in realization for the second time,
The load that hoist cable (4) bears stiff girder (5) is zero.
8. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 2 swings shifting installation method, feature exists
In: stiff girder (5) load transfer process in step 3) and step 5) is actively to unload step by step.
9. a kind of stiffening girder of suspension bridge without horizontal traction force according to claim 2 swings shifting installation method, feature exists
In: it is to be connected using artificial drawing hoist cable (4) with stiff girder (5) in step 2, is using artificial drawing loop wheel machine steel in step 4)
Twisted wire (3) is connected with stiff girder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432085.5A CN109295862A (en) | 2018-11-28 | 2018-11-28 | A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432085.5A CN109295862A (en) | 2018-11-28 | 2018-11-28 | A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method |
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| Publication Number | Publication Date |
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| CN109295862A true CN109295862A (en) | 2019-02-01 |
Family
ID=65143281
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811432085.5A Pending CN109295862A (en) | 2018-11-28 | 2018-11-28 | A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method |
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| CN (1) | CN109295862A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152282A (en) * | 2021-02-25 | 2021-07-23 | 中铁北京工程局集团(天津)工程有限公司 | Quick construction method for sling |
| CN113373828A (en) * | 2021-05-27 | 2021-09-10 | 武汉一冶建筑安装工程有限责任公司 | Bridge turning system and installation and turning method thereof |
| CN113445428A (en) * | 2021-07-15 | 2021-09-28 | 中交一公局集团有限公司 | Transfer device for air continuous movement of large-sized member and construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113152282A (en) * | 2021-02-25 | 2021-07-23 | 中铁北京工程局集团(天津)工程有限公司 | Quick construction method for sling |
| CN113373828A (en) * | 2021-05-27 | 2021-09-10 | 武汉一冶建筑安装工程有限责任公司 | Bridge turning system and installation and turning method thereof |
| CN113445428A (en) * | 2021-07-15 | 2021-09-28 | 中交一公局集团有限公司 | Transfer device for air continuous movement of large-sized member and construction method |
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