CN207537885U - The anchoring mechanism in inclined guy cable stretching stage - Google Patents
The anchoring mechanism in inclined guy cable stretching stage Download PDFInfo
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- CN207537885U CN207537885U CN201721460796.4U CN201721460796U CN207537885U CN 207537885 U CN207537885 U CN 207537885U CN 201721460796 U CN201721460796 U CN 201721460796U CN 207537885 U CN207537885 U CN 207537885U
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- nut
- tensioning
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- tension rod
- suspension cable
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Abstract
The utility model belongs to technical field of bridge construction, proposes a kind of anchoring mechanism in inclined guy cable stretching stage.A kind of anchoring mechanism in the inclined guy cable stretching stage proposed has the tensioning spike and tension rod for being arranged on beam anchor plate side；One end of tension rod is pierced by tensioning spike, jack and tensioner and connects, and the other end of tension rod is connect with the anchor cup of suspension cable end；There is anchor cup nut in tensioning spike；The secondary nut matched with tension rod kiss is additionally provided in tensioning spike；Multiple steel washers axially set along tensioning spike are provided between secondary nut and beam anchor plate；Multiple steel washers are held out against between beam anchor plate and secondary nut；The outer diameter of steel washer is identical with the internal diameter of tensioning spike；The steel washer and anchor cup nut clearance fit being nested on anchor cup nut.Formal nut caused by the utility model solves the problems, such as suspension cable tension deficiency leads to suspension cable downwarp in the initial tensioning stage can not precession, ensure that the stretching rope power in each stage during free cantilever erection.
Description
Technical field
The utility model belongs to technical field of bridge construction, and in particular to a kind of anchoring mechanism in inclined guy cable stretching stage.
Background technology
The general sequence of suspension cable installation is " the first tower back rest "；According to tower end, beam-ends working space, suspension cable installation lifting
Weight, suspension cable are drawn, the Construction control power size of stretching process, and full-bridge suspension cable is divided into three kinds of tackline, middle rope, long rope sides
Formula is installed；Tackline using normal procedure install, at a distance in long rope, beam-ends using hoist engine trailer system will
Pull rod pulls out anchor plate under beam, and the tensioner under opinion back end of tie rod screw-in spreading tension rod, mounting rail proceeds by beam
Lower hardness traction；Finally instructed by tensioning suspension cable is classified in beam-ends, symmetrical tensioning operation.
Cable-stayed bridge instructs each beam section tensioning in three times according to monitoring, i.e., carries out pre- tensioning after the completion of steel girder erection, then
Concrete slab is installed and carries out second of tensioning, after the wet joint concrete intensity and elasticity modulus poured reaches design requirement
Carry out third time tensioning；Erection crane could be moved after tensioning three times and carries out next segment installation；Preceding tensioning twice is intended to
The linear effect that the dead weight of girder steel and floorings is overcome to bring, stretching force is little, and in the range of 500KN~900KN, tackline area is drawn
Rope nut can precession to safe range, the slightly remote Zhong Changsuo areas suspension cable of distance, in the range of this stretching force, due to by gravity
Sag influences, and suspension cable causes unpluging amount inadequate, causes screw thread not exposed still in larger overhang, formal anchor cup
Nut can not precession, the secondary nut stress of tensioning equipment need to be borrowed, just can guarantee the first vang power of suspension cable.
Utility model content
To solve problem above, the purpose of this utility model is to propose a kind of anchoring mechanism in inclined guy cable stretching stage.
The utility model is adopted the following technical scheme that complete above-mentioned purpose：
A kind of anchoring mechanism in inclined guy cable stretching stage, the anchoring mechanism, which has, is arranged on beam anchor plate side
Tensioning spike；The opposite side of the beam anchor plate is provided with to wear the cable guide pipe of suspension cable；One end of the tensioning spike
The beam anchor plate is held out against, the other end is connect with jack；The tensioning spike is tubular structure；The anchorage machine
Structure also has the tension rod being connect with suspension cable；One end of the tension rod is pierced by tensioning spike, jack and the tensioning
Equipment connects, and the other end of tension rod is connect by connector sleeve with the anchor cup of suspension cable end；It is set in the tensioning spike
There is the anchor cup nut to coordinate with the anchor cup of suspension cable end, and the anchor cup nut is close to the setting of beam anchor plate；Institute
The secondary nut matched with tension rod kiss is additionally provided in the tensioning spike stated；The secondary nut support is in tensioning spike；It is described
The internal diameter of secondary nut is less than the outer diameter of connector sleeve；Steel washer is provided between the secondary nut and the beam anchor plate；
The steel washer is multiple axially to be set along tensioning spike；Multiple steel washers are held out against in beam anchor plate and secondary nut
Between；The outer diameter of the steel washer is identical with the internal diameter of tensioning spike；Be nested with the steel washer on anchor cup nut with it is described
Anchor cup nut clearance fit.
The utility model proposes a kind of inclined guy cable stretching stage anchoring mechanism, using above-mentioned technical proposal, steel washer
Always it holds out against between beam anchor plate and secondary nut, rigid support is carried out to secondary nut, solves suspension cable in initial tensioning rank
Duan Zhangli deficiencies cause formal nut caused by suspension cable downwarp can not precession, tension rod also cannot stress, but need spiral shell just
The problem of when mother is fixed near connector sleeve, it ensure that the stretching rope power in each stage during free cantilever erection.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：1st, cable guide pipe, 2, anchor cup, 3, anchor cup nut, 4, connector sleeve, 5, steel washer, 6, secondary nut, 7, tensioning support
Foot, 8, jack, 9, tension rod, 10, beam anchor plate.
Specific embodiment
The utility model is illustrated with reference to the drawings and specific embodiments：
As shown in Figure 1, a kind of anchoring mechanism in inclined guy cable stretching stage, the anchoring mechanism, which has, is arranged on beam-ends anchor
The tensioning spike 7 of 10 side of solid plate；The opposite side of the beam anchor plate 10 is provided with to wear the cable guide pipe 1 of suspension cable；Institute
The one end for stating tensioning spike 7 holds out against the beam anchor plate 10, and the other end is connect with jack 8；The tensioning spike 7 is
Tubular structure；The anchoring mechanism also has the tension rod 9 being connect with suspension cable；One end of the tension rod 9 is pierced by described
Tensioning spike 7, jack 8 connect with tensioner, the other end of tension rod 9 passes through connector sleeve 4 and the anchor of suspension cable end
Cup 2 connects；The anchor cup nut 3 to coordinate with the anchor cup of suspension cable end is provided in the tensioning spike, and described
Anchor cup nut 3 is close to beam anchor plate 10 and is set；The secondary nut 6 matched with tension rod kiss is additionally provided in the tensioning spike；
The secondary nut 6 is supported in tensioning spike；The internal diameter of the pair nut 6 is less than the outer diameter of connector sleeve 4；The secondary nut
Steel washer 5 is provided between the beam anchor plate；The steel washer 5 is multiple axially to be set along tensioning spike；
Multiple steel washers 5 are held out against between beam anchor plate 10 and secondary nut 6；The outer diameter of the steel washer 6 and tensioning spike 7
Internal diameter is identical；The steel washer being nested on anchor cup nut and the anchor cup nut clearance fit.
When the utility model is used, tension rod 9 is connected on suspension cable with connector sleeve 4 first；By tensioning spike 7, very heavy
Top 8 and anchor cup nut 3 are lifted to designated position；Steel washer 5 and secondary nut 6 are filled in tensioning spike 7 again；Using hoist engine and
The cooperation of crane carries out the hardness traction of suspension cable beam-ends；When connector sleeve 4 stretches and formal anchor cup nut under draw
Can not precession when, hold out against steel washer with secondary nut and temporarily fixed suspension cable；Then the tensioning of suspension cable is carried out again；Pass through
Jack applies pulling force, suspension cable is further stretched, then secondary nut and steel washer are held out against, then holds out against tensioning stem nut,
Fixed jack.Continue this process until Cable power reaches design initial tension size.
Claims (1)
1. a kind of anchoring mechanism in inclined guy cable stretching stage, the anchoring mechanism has for being arranged on beam anchor plate side
Stay bolt foot；The opposite side of the beam anchor plate is provided with to wear the cable guide pipe of suspension cable；One end top of the tensioning spike
The tight beam anchor plate, the other end are connect with jack；The tensioning spike is tubular structure；The anchoring mechanism
Also there is the tension rod being connect with suspension cable；One end of the tension rod is pierced by tensioning spike, jack and the stretching machine
Tool connection, the other end of tension rod are connect by connector sleeve with the anchor cup of suspension cable end；It is provided in the tensioning spike
To the anchor cup nut coordinated with the anchor cup of suspension cable end, and the anchor cup nut is close to the setting of beam anchor plate；It is described
Tensioning spike in be additionally provided with and the secondary nut matched of tension rod kiss；The secondary nut support is in tensioning spike；The pair
The internal diameter of nut is less than the outer diameter of connector sleeve；It is characterized in that：It is set between the secondary nut and the beam anchor plate
There is steel washer；The steel washer is multiple axially to be set along tensioning spike；Multiple steel washers are held out against in beam anchor
Between plate and secondary nut；The outer diameter of the steel washer is identical with the internal diameter of tensioning spike；The steel being nested on anchor cup nut
Washer and the anchor cup nut clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460796.4U CN207537885U (en) | 2017-11-06 | 2017-11-06 | The anchoring mechanism in inclined guy cable stretching stage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460796.4U CN207537885U (en) | 2017-11-06 | 2017-11-06 | The anchoring mechanism in inclined guy cable stretching stage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207537885U true CN207537885U (en) | 2018-06-26 |
Family
ID=62612365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721460796.4U Active CN207537885U (en) | 2017-11-06 | 2017-11-06 | The anchoring mechanism in inclined guy cable stretching stage |
Country Status (1)
| Country | Link |
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| CN (1) | CN207537885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295859A (en) * | 2018-10-18 | 2019-02-01 | 柳州欧维姆机械股份有限公司 | A kind of front fulcrum hangs the tensioning equipment and its stretch-draw construction method of blue construction |
| CN110644366A (en) * | 2019-09-06 | 2020-01-03 | 中铁大桥(郑州)缆索有限公司 | Stay cable tensioning device for narrow anchoring space and operation method thereof |
-
2017
- 2017-11-06 CN CN201721460796.4U patent/CN207537885U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109295859A (en) * | 2018-10-18 | 2019-02-01 | 柳州欧维姆机械股份有限公司 | A kind of front fulcrum hangs the tensioning equipment and its stretch-draw construction method of blue construction |
| CN109295859B (en) * | 2018-10-18 | 2023-12-19 | 柳州欧维姆机械股份有限公司 | Tensioning device for front supporting point hanging construction and tensioning construction method thereof |
| CN110644366A (en) * | 2019-09-06 | 2020-01-03 | 中铁大桥(郑州)缆索有限公司 | Stay cable tensioning device for narrow anchoring space and operation method thereof |
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