CN103643636A - Rigid suspension rod pushing slippage device and slippage method thereof - Google Patents
Rigid suspension rod pushing slippage device and slippage method thereof Download PDFInfo
- Publication number
- CN103643636A CN103643636A CN201310616131.8A CN201310616131A CN103643636A CN 103643636 A CN103643636 A CN 103643636A CN 201310616131 A CN201310616131 A CN 201310616131A CN 103643636 A CN103643636 A CN 103643636A
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- cord clip
- suspension rod
- work
- rigid hanger
- slippage
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- 239000000725 suspension Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 20
- 210000001364 upper extremity Anatomy 0.000 claims description 5
- 238000007796 conventional method Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a rigid suspension rod pushing slippage device and a slippage method thereof. A rope clamp is installed right above the center of a suspension rod guiding pipe, a part of fastening force is exerted onto the rope clamp, and then a rigid suspension rod and a temporary pushing device are installed. In the rigid suspension rod stretch-draw process, the rotation angle variable quantity of the rigid suspension rod is controlled through staged pushing slippage of the rope clamp, and the rigid suspension rod is not clamped by the suspension rod guiding pipe till the rigid suspension rod stretch-draw work is finished. After the rope clamp slides to the designed position, the rope clamp fastening work is finished in a wheel-dividing, symmetrical, multiple-point synchronous-fastening mode. The rigid suspension rod pushing slippage device and the slippage method has the advantages that the operation process is simple and convenient, the time and labor are saved, a suspension rod guiding pipe diameter increasing method for adaption of the rotation angle of the rigid suspension rod is not needed, or re-drilling for arrangement of the suspension rod guiding pipe and an anchor bearing plate is not needed.
Description
Technical field
The invention belongs to bridge equipment installing area, be specifically related to a kind of rigid hanger thrusting slip device and gliding method thereof.
Background technology
In self-anchoring type or earth anchored suspension bridge, the shorter suspension rod of length is often designed to rigid hanger, and these rigid hangers, in work progress, often exist the contraposition difficult problem of installation and stretch-draw.Owing to there is the feature that length is short, diameter is large in the rigid hanger of suspension bridge, in suspension rod stretching process, main push-towing rope is non-linear obviously, cord clip is large to the horizontal off normal of king-tower direction, if to cord clip setting pred icted deflection, there is deviation in the suspension rod guide pipe of stiff girder and cord clip center, causes rigid hanger cannot install and stretch-draw.
In conjunction with Fig. 1, cord clip 1 is after being subject to downward stretching force, and main push-towing rope 4 can produce displacement downwards, and cord clip 1 can produce the horizontal movement (seeing dotted portion in Fig. 1) to king-tower direction (being the left side in Fig. 1).In order to guarantee after rigid hanger 7 stretch-draw, the center line of cord clip 1, rigid hanger 7 and suspension rod guide pipe 8 overlaps and keeps vertically, must when empty cable state, cord clip 1 being carried out to pre-dress content to retain sovereignty over a part of the country.Because rigid hanger 7 is shorter, the pre-value partially of cord clip 1 is larger, cause the corner of rigid hanger 7 under original state larger, can be stuck in the edge of suspension rod guide pipe 8, cannot complete the initial installation of rigid hanger 7.
In conjunction with Fig. 2, adopt the way that strengthens suspension rod guide pipe 8 diameters, adapt to the variation of rigid hanger 7 corners, can solve installation and the stretch-draw problem of rigid hanger 7, but it is very large that the local stress that can make girder 5, suspension rod guide pipe 8 and anchor plate becomes, cause local pressure unreasonable, affect the durability that suspension bridge is used.
Summary of the invention
The object of the present invention is to provide a kind of rigid hanger thrusting slip device and gliding method thereof, do not need to adopt the way that strengthens suspension rod guide pipe diameter, adapt to the variation of rigid hanger corner, or redrilling laying suspension rod guide pipe and anchor plate, just can solve rigid hanger and install and stretch-draw problem.
The technical solution that realizes the object of the invention is:
A kind of rigid hanger thrusting slip device, comprise cord clip, work cord clip and hydraulic jack, cord clip is fixed on main push-towing rope, directly over the suspension rod guide pipe center, initial center position of cord clip, rigid hanger is fixed on cord clip, a work cord clip is set respectively in cord clip above and below, work cord clip above being positioned at and the clear distance of cord clip are slightly larger than hydraulic jack shortest length and add plate thickness, the design slippage that the work cord clip of below and the clear distance of cord clip are cord clip, the main push-towing rope side of working up between cord clip and cord clip, be arranged with two hydraulic jacks, hydraulic jack base is close to the lower edge of top work cord clip, the piston rod of hydraulic jack withstands the upper limb of cord clip by backing plate.
The work cord clip of top and the clear distance of cord clip are not less than hydraulic jack shortest length and plate thickness sum, the design slippage that the work cord clip of below and the clear distance of cord clip are cord clip; The stroke of hydraulic jack 3 is greater than the design slippage of cord clip 1.
A gliding method for rigid hanger thrusting slip device, method step is as follows:
Step 6, use some hydraulic fixing equipment simultaneously, the high-strength bolt nut of cord clip is carried out to minute wheel, symmetry, synchronously fastening by the every 15%-20% of wheel design fastening force, make the fastening force of high-strength nut reach 100% of design load.
Work cord clip and the hydraulic jack of step 7, dismounting cord clip above and below.
Above-mentioned hydraulic fixing equipment adopts and is no less than 2N platform, wherein N >=2.
The present invention compared with prior art, its remarkable advantage: operating process is simple, convenient, easily complete installation and the stretch-draw work of rigid hanger 7, can not make the local stress of girder 5, suspension rod guide pipe 8 and anchor plate become very large, can make Force transmission parts keep reasonable stress, can not affect the durability that suspension bridge is used.
Accompanying drawing explanation
Fig. 1 is the stressed contrast schematic diagram that moves forward and backward of cord clip.
Fig. 2 is that the conventional suspension rod guide pipe diameter method that strengthens is installed rigid hanger schematic diagram.
Fig. 3 is view before rigid hanger thrusting slip device of the present invention is installed.
Fig. 4 is rigid hanger thrusting slip device installment state schematic diagram of the present invention.
Fig. 5 is that rigid hanger thrusting slip device of the present invention is with suspension rod stretch-draw cord clip gradation pushing tow slip-down state schematic diagram.
The view that Fig. 6 is rigid hanger thrusting slip device of the present invention when sliding to into bridge under suspension rod stretch-draw cord clip pushing tow.
The specific embodiment
Below in conjunction with accompanying drawing 3-Fig. 6, the present invention is described in further detail.
A kind of rigid hanger thrusting slip device, comprise cord clip 1, work cord clip 2 and hydraulic jack 3, cord clip 1 is fixed on main push-towing rope 4, directly over suspension rod guide pipe 8 centers, initial center position of cord clip 1, to cord clip 1 applying portion pretightning force, rigid hanger 7 is arranged on cord clip 1, a work cord clip 2 is set respectively in cord clip 1 above and below, work cord clip 2 in top is not less than hydraulic jack 3 shortest lengths and plate thickness sum with the clear distance of cord clip 1, and work cord clip 2 in below is the design slippage of cord clip 1 with the clear distance of cord clip 1.
Work cord clip 2 up and the main push-towing rope side between cord clip 1, symmetry is adhered to and is provided with two hydraulic jacks 3, the stroke of requirement hydraulic jack 3 is greater than the design slippage of cord clip 1, and hydraulic jack 3 bases are close to the lower edge of work cord clip 2, and piston rod withstands the upper limb of cord clip 1 by backing plate.
The clear distance of top work cord clip 2 and cord clip 1 is the distance between the top work lower edge of cord clip 2 and the upper limb of cord clip 1, and the clear distance of below work cord clip 2 and cord clip 1 is the distance between the below work upper limb of cord clip 2 and the lower edge of cord clip 1.
In conjunction with Fig. 1 ~ Fig. 6, a kind of gliding method based on rigid hanger thrusting slip device, method step is as follows:
Step 6, use 6 hydraulic fixing equipment simultaneously, the high-strength bolt nut of cord clip 1 is carried out to minute wheel, symmetry, synchronously fastening by the every 15%-20% of wheel design fastening force, make the fastening force of high-strength nut reach 100% of design load.
Work cord clip 2 and the hydraulic jack 3 of step 7, dismounting cord clip 1 above and below.
Operating process of the present invention is simple, convenient, easily complete installation and the stretch-draw work of rigid hanger 7, can not make the local stress of girder 5, suspension rod guide pipe 8 and anchor plate become very large, can make Force transmission parts keep reasonable stress, can not affect the durability that suspension bridge is used.
Claims (5)
1. a rigid hanger thrusting slip device, it is characterized in that: comprise cord clip (1), work cord clip (2) and hydraulic jack (3), cord clip (1) is fixed on main push-towing rope (4), the initial center position of cord clip (1) be positioned at suspension rod guide pipe (8) center directly over, rigid hanger (7) is fixed on cord clip (1), a work cord clip (2) is set respectively in cord clip (1) above and below, main push-towing rope (4) side of working up between cord clip (2) and cord clip (1), be arranged with two hydraulic jacks (3), hydraulic jack (3) base is close to the lower edge of top work cord clip (2), the piston rod of hydraulic jack (3) withstands the upper limb of cord clip (1) by backing plate.
2. rigid hanger thrusting slip device according to claim 1, it is characterized in that: the work cord clip (2) of top is not less than hydraulic jack (3) shortest length and plate thickness sum with the clear distance of cord clip (1), the work cord clip (2) of below is the design slippage of cord clip (1) with the clear distance of cord clip (1).
3. rigid hanger thrusting slip device according to claim 1 and 2, is characterized in that: the stroke of hydraulic jack (3) is greater than the design slippage of cord clip (1).
4. the gliding method based on rigid hanger thrusting slip device claimed in claim 1, is characterized in that, method step is as follows:
Step 1, under empty cable state, the main push-towing rope (4) first cord clip (1) being arranged on directly over suspension rod guide pipe (8) center is gone up, and cord clip (1) is applied to the preliminary pretightning force of 25%-30%, then loads onto according to a conventional method rigid hanger;
Step 2, an interim work cord clip (2) is respectively installed on the main push-towing rope of cord clip (1) above and below, the work cord clip (2) of top is not less than hydraulic jack (3) shortest length and plate thickness sum with the clear distance of cord clip (1), the work cord clip (2) of below is the design slippage of cord clip (1) with the clear distance of cord clip (1), work cord clip (2) is applied to 100% fastening force, work cord clip (2) up and the main push-towing rope (4) between cord clip (1) are upper, symmetrical two hydraulic jacks (3) of installing;
Step 3, substep stretch-draw rigid hanger (7), increase gradually along with suspension rod power, the main push-towing rope at suspension rod place (4) is out of shape downwards, cord clip (1) slowly moves to king-tower direction, until rigid hanger (7) lower end is offset to the edge of suspension rod guide pipe (8), now, suspend the stretch-draw work of rigid hanger (7);
Step 4, with hydraulic jack (3), slowly cord clip (1) is applied to downward thrust along main push-towing rope (4), make slowly slippage downwards of cord clip (1), until rigid hanger (7) deflection opposite side, but be as the criterion not contact the limit wall of suspension rod guide pipe (8), now, stop pushing tow work;
Step 5, repetition above-mentioned steps 3 and step 4, back and forth carry out the stretch-draw work of rigid hanger (7), until the stretching force of rigid hanger (7) approach design stretching force 95% time, during downward pushing tow cord clip (1), while just making rigid hanger (7) keep vertical, stop pushing tow work, apply rigid hanger stretching force to 100% design load;
Step 6, use some hydraulic fixing equipment simultaneously, the high-strength bolt nut of cord clip (1) is carried out to minute wheel, symmetry, synchronously fastening by the every 15%-20% of wheel design fastening force, make the fastening force of high-strength nut reach 100% of design load;
Work cord clip (2) and the hydraulic jack (3) of step 7, dismounting cord clip (1) above and below.
5. the gliding method of rigid hanger thrusting slip device according to claim 4, is characterized in that: above-mentioned hydraulic fixing equipment adopts and is no less than 2N platform, wherein N >=2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616131.8A CN103643636B (en) | 2013-11-27 | 2013-11-27 | A kind of rigid hanger thrusting slip device and gliding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616131.8A CN103643636B (en) | 2013-11-27 | 2013-11-27 | A kind of rigid hanger thrusting slip device and gliding method thereof |
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| Publication Number | Publication Date |
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| CN103643636A true CN103643636A (en) | 2014-03-19 |
| CN103643636B CN103643636B (en) | 2015-12-09 |
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| CN201310616131.8A Expired - Fee Related CN103643636B (en) | 2013-11-27 | 2013-11-27 | A kind of rigid hanger thrusting slip device and gliding method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938513A (en) * | 2017-12-31 | 2018-04-20 | 中交通力建设股份有限公司 | A kind of existing cord clip antisliding apparatus of flexible suspension bridge and method |
| CN110863431A (en) * | 2019-11-22 | 2020-03-06 | 中国十七冶集团有限公司 | Method for reinforcing steel guide cable pipe of suspension bridge suspender and improving installation precision |
| CN111487120A (en) * | 2020-05-04 | 2020-08-04 | 东南大学 | Anti-slip bearing capacity test system and method for bent inhaul cable and cable clamp assembly part |
| CN114518225A (en) * | 2022-02-21 | 2022-05-20 | 云南大学 | Cable clamp anti-sliding bearing capacity test device and method based on suspender tensioning |
| CN114934441A (en) * | 2022-05-23 | 2022-08-23 | 保利长大工程有限公司 | Anti-slip temporary sling cable clamp structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125094A (en) * | 2004-10-29 | 2006-05-18 | Otaki Jack Kk | Push-in method and push-in device for hanging cable |
| CN200961239Y (en) * | 2006-09-09 | 2007-10-17 | 柳州欧维姆机械股份有限公司 | Rotary cable-stayed bridge cable clamp |
| EP1980667A2 (en) * | 2007-04-14 | 2008-10-15 | Dywidag-Systems International GmbH | Tension member for structures and method for its manufacture |
| JP2010018993A (en) * | 2008-07-10 | 2010-01-28 | Nippon Steel Engineering Co Ltd | Connection fitting |
| CN102071651A (en) * | 2010-12-15 | 2011-05-25 | 江苏法尔胜新日制铁缆索有限公司 | Sling replacement method for suspension bridge |
-
2013
- 2013-11-27 CN CN201310616131.8A patent/CN103643636B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006125094A (en) * | 2004-10-29 | 2006-05-18 | Otaki Jack Kk | Push-in method and push-in device for hanging cable |
| CN200961239Y (en) * | 2006-09-09 | 2007-10-17 | 柳州欧维姆机械股份有限公司 | Rotary cable-stayed bridge cable clamp |
| EP1980667A2 (en) * | 2007-04-14 | 2008-10-15 | Dywidag-Systems International GmbH | Tension member for structures and method for its manufacture |
| JP2010018993A (en) * | 2008-07-10 | 2010-01-28 | Nippon Steel Engineering Co Ltd | Connection fitting |
| CN102071651A (en) * | 2010-12-15 | 2011-05-25 | 江苏法尔胜新日制铁缆索有限公司 | Sling replacement method for suspension bridge |
Non-Patent Citations (1)
| Title |
|---|
| 魏华等: ""国内最大跨径钢筋混凝土主梁自锚式悬索桥--永康市溪心桥施工控制"", 《结构工程师》, 30 June 2004 (2004-06-30), pages 77 - 82 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938513A (en) * | 2017-12-31 | 2018-04-20 | 中交通力建设股份有限公司 | A kind of existing cord clip antisliding apparatus of flexible suspension bridge and method |
| CN110863431A (en) * | 2019-11-22 | 2020-03-06 | 中国十七冶集团有限公司 | Method for reinforcing steel guide cable pipe of suspension bridge suspender and improving installation precision |
| CN111487120A (en) * | 2020-05-04 | 2020-08-04 | 东南大学 | Anti-slip bearing capacity test system and method for bent inhaul cable and cable clamp assembly part |
| CN111487120B (en) * | 2020-05-04 | 2022-03-18 | 东南大学 | Anti-slip bearing capacity test system and method for bent inhaul cable and cable clamp assembly part |
| CN114518225A (en) * | 2022-02-21 | 2022-05-20 | 云南大学 | Cable clamp anti-sliding bearing capacity test device and method based on suspender tensioning |
| CN114934441A (en) * | 2022-05-23 | 2022-08-23 | 保利长大工程有限公司 | Anti-slip temporary sling cable clamp structure |
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| CN103643636B (en) | 2015-12-09 |
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