CN105019351B - Pin-connected connection assembly capable of transversely rotating for lower end of sling - Google Patents
Pin-connected connection assembly capable of transversely rotating for lower end of sling Download PDFInfo
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- CN105019351B CN105019351B CN201510432063.9A CN201510432063A CN105019351B CN 105019351 B CN105019351 B CN 105019351B CN 201510432063 A CN201510432063 A CN 201510432063A CN 105019351 B CN105019351 B CN 105019351B
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- stiffening
- sling
- pin
- ear plate
- pin shaft
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Abstract
The invention discloses a pin-connected connection component capable of transversely rotating for the lower end of a sling. A fork-shaped ear plate of a lower anchor head is connected with a stiffening-beam ear plate through a pin shaft; the side wall of a round hole for being connected with the pin shaft in the stiffening-beam ear plate is processed into a circular arc surface; a circular arc groove is formed in the middle of the pin shaft; the circular arc surface on the stiffening-beam ear plate is matched with the circular arc groove in the pin shaft; a lining made of self-lubricating materials, which can reduce frictional resistance, is arranged on the contact surface between the circular arc surface on the stiffening-beam ear plate and the circular arc groove in the pin shaft; a notch is formed in one end of the pin shaft; a baffle is inserted into the notch and fixed on the fork-shaped ear plate of the lower anchor head, so that the transverse movement of the pin shaft is limited. Compared with a conventional pin-connected connection assembly, the pin-connected connection assembly disclosed by the invention not only can realize the longitudinal rotation between a stiffening beam and the sling, but also can realize the transverse relative rotation between the sling and the stiffening beam; when the pin-connected connection assembly disclosed by the invention is used for enabling the sling and the stiffening beam of a suspension bridge to be connected in a pin-connected manner, the bending of a steel wire at the anchoring position of the sling can be lowered, the possible transverse bending moment of the stiffening-beam ear plate at a welding position can be reduced, the secondary bending stress of the steel wire of the sling is reduced, and the transverse damage of the ear plates is avoided, so that the force transmission between the sling and the stiffening-beam ear plate is guaranteed to be safe.
Description
Technical field
The present invention relates to bridge technology field is and in particular to a kind of be used between sling of suspension bridge and stiff girder connecting and can subtracting
At little hoist cable anchor mouth steel wire bent secondary stress and avoid that otic placode laterally destroys can lateral rotation hoist cable lower end pin joint formula even
Connected components.
Background technology
With the needs of China's economy and social development, for crossing over great rivers, deep valley straits, connect natural barrier, need to repair
Build Longspan Bridge.The favor that suspension bridge is increasingly subject to science of bridge building teacher as the maximum bridge type of span ability so far is simultaneously
Obtain the extensive approval of masses with its extensive glorious imposing manner.
Sling of suspension bridge is the important Force transmission partses passing to load on stiff girder on main push-towing rope, is connected between hoist cable and stiff girder
The reliability of anchoring directly influences hoist cable power transmission.Between hoist cable and stiff girder, pin joint formula is connected because simplifying anchoring structure on stiff girder
Make, facilitate stiff girder to install and safeguard and be widely used.But under lateral load effect, stiff girder transverse shifting, hangs
Rope lateral inclination, due under hoist cable anchor head cannot lateral rotation and still keep vertical, hoist cable and lower anchor head produce horizontal stroke at anchor mouth
To bending, lead to steel wire bent secondary stress at hoist cable anchor mouth larger；Additionally, hoist cable direction of pull and stiff girder otic placode vertically side
There is angle to, at otic placode root run, produce larger transverse bending moment, lead to otic placode weld seam to destroy.
Content of the invention
The purpose of the present invention is for above-mentioned present situation, it is desirable to provide one kind both can ensure power transmission between hoist cable and stiff girder otic placode
Safe and reliable but enable hoist cable anchor head between stiff girder lateral rotation the hoist cable lower end pin joint formula of lateral rotation can be connected group
Part.
The implementation of the object of the invention is, can lateral rotation hoist cable lower end pin joint formula coupling assembly, lower anchor head fork-shaped
Connected with bearing pin between otic placode and stiff girder otic placode, the circular hole side wall that stiff girder otic placode is used for connecting bearing pin is laterally processed into circular arc
Face, sets arc groove, on stiff girder otic placode, arc surface is matched with arc groove on bearing pin, is provided with self-lubricating in contact surface in the middle of bearing pin
Material bushing, slot in bearing pin one end, in baffle plate insertion fluting, to limit bearing pin transverse shifting.
Present invention has the advantage that
1st, under hoist cable between anchor head and stiff girder can relative lateral rotations, under hoist cable under Lateral Force, anchor head is horizontal with hoist cable
To inclination, it is to avoid hoist cable and lower anchor head produce horizontal bending at anchor mouth, reduce steel wire bent secondary stress at hoist cable anchor mouth；
2nd, under hoist cable, anchor head can reduce hoist cable line of pull to the power of stiff girder otic placode commissure with hoist cable lateral inclination
Arm, it is to avoid lead to otic placode weld seam to destroy because transverse bending moment is excessive at stiff girder otic placode；
3rd, reduce sling steel wire stress and avoid otic placode laterally to destroy, thus ensureing power transmission peace between hoist cable and stiff girder otic placode
Entirely.
Brief description
Fig. 1 is present configuration schematic diagram,
Fig. 2 be Fig. 1 a a to sectional drawing,
Fig. 3 is b enlarged schematic partial view in Fig. 2.
Specific embodiment
With specific embodiment, the technology of the present invention content is described in further detail below in conjunction with the accompanying drawings.
With reference to Fig. 1,2,3, connected with bearing pin 3 between the lower anchor head fork-shaped otic placode 1 of the present invention and stiff girder otic placode 2, stiff girder
The circular hole side wall that otic placode is used for connecting bearing pin is laterally processed into arc surface, sets arc groove, circular arc on stiff girder otic placode in the middle of bearing pin
Face is matched with arc groove on bearing pin, is provided with self-lubricating material bushing 5 in contact surface, with reduce between both contact surfaces frictional resistance and
The material of force transferring structure wears away and ensure between the two can relative lateral rotations.Slot in bearing pin 3 one end, in baffle plate 4 insertion fluting, and
It is screwed baffle plate 4 on hoist cable otic placode 1, to limit the transverse shifting of bearing pin 3.
In use, when such as suspension bridge bears the cross forces such as wind load, stiff girder will occur transverse shifting, hoist cable
Produce lateral inclination.Because bearing pin and stiff girder otic placode contact surface are arc surface, and self-lubricating bushing, Ke Yifa are set between the two
Raw relative lateral rotations, under hoist cable, anchor head, with hoist cable lateral inclination, eliminates the horizontal folding at hoist cable and lower anchor head anchor mouth
Angle, can greatly reduce hoist cable bending secondary stress；Additionally, after lower anchor head is with hoist cable inclination, hoist cable line of pull and stiff girder otic placode
Between the weld seam arm of force shorten, stiff girder otic placode commissure transverse bending moment reduces therewith, it is to avoid lead to ear because transverse bending moment is excessive at this
Plate welding seams destroy.
The present invention not only can achieve longitudinally rotating between stiff girder and hoist cable, and also having between hoist cable and stiff girder can horizontal phase
To the advantage rotating, it is connected with the pin joint formula of stiff girder for sling of suspension bridge, can reduce that bending at hoist cable anchor mouth is secondary to answer
Power simultaneously reduces stiff girder otic placode commissure transverse bending moment that may be present, reduces sling steel wire stress and avoids otic placode laterally to break
Bad it is ensured that power transmission safety between hoist cable and stiff girder otic placode.
Claims (2)
1. can lateral rotation hoist cable lower end pin joint formula coupling assembly it is characterised in that: lower anchor head fork-shaped otic placode and stiff girder ear
Connected with bearing pin between plate, the circular hole side wall that stiff girder otic placode is used for connecting bearing pin is laterally processed into arc surface, sets circle in the middle of bearing pin
Arc groove, on stiff girder otic placode, arc surface is matched with arc groove on bearing pin, is provided with self-lubricating material bushing, bearing pin one in contact surface
End fluting, baffle plate insertion fluting is interior and is fixed on lower anchor head fork-shaped otic placode, to limit bearing pin transverse shifting.
2. according to claim 1 can lateral rotation hoist cable lower end pin joint formula coupling assembly it is characterised in that: described from
Lubriation material bushing is the bushing being manufactured using self-lubricating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432063.9A CN105019351B (en) | 2015-07-21 | 2015-07-21 | Pin-connected connection assembly capable of transversely rotating for lower end of sling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510432063.9A CN105019351B (en) | 2015-07-21 | 2015-07-21 | Pin-connected connection assembly capable of transversely rotating for lower end of sling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105019351A CN105019351A (en) | 2015-11-04 |
| CN105019351B true CN105019351B (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510432063.9A Active CN105019351B (en) | 2015-07-21 | 2015-07-21 | Pin-connected connection assembly capable of transversely rotating for lower end of sling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105019351B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105586826B (en) * | 2015-11-30 | 2017-03-29 | 湖州交通规划设计院 | A kind of Concrete Tied Arch suspension rod casts anchor and holds attachment structure and its construction method |
| CN110144822A (en) * | 2019-05-07 | 2019-08-20 | 江苏法尔胜缆索有限公司 | Suspension bridge space big corner, permanent seal cooling hoist cable connection structure |
| CN110144821A (en) * | 2019-05-07 | 2019-08-20 | 江苏法尔胜缆索有限公司 | Suspension bridge space big corner hoist cable connection structure |
| CN110485262B (en) * | 2019-07-29 | 2022-02-08 | 中交四公局第一工程有限公司 | Bridge sling connection structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2806106A1 (en) * | 2000-03-13 | 2001-09-14 | Freyssinet Int Stup | Adjustable cable anchor for civil engineering structure has two components with opposite threads joined by double-threaded connecting piece |
| CN101041945A (en) * | 2007-04-10 | 2007-09-26 | 江苏法尔胜新日制铁缆索有限公司 | Connecting method of bracing cable for bridge |
| CN101298754A (en) * | 2008-05-16 | 2008-11-05 | 上海市政工程设计研究总院 | Pin abut type lifting rope |
| CN102392490A (en) * | 2011-11-02 | 2012-03-28 | 中国建筑第八工程局有限公司 | Truss support |
| CN102979808A (en) * | 2011-09-06 | 2013-03-20 | 朱克团 | Self-adaptation type connection rod |
-
2015
- 2015-07-21 CN CN201510432063.9A patent/CN105019351B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2806106A1 (en) * | 2000-03-13 | 2001-09-14 | Freyssinet Int Stup | Adjustable cable anchor for civil engineering structure has two components with opposite threads joined by double-threaded connecting piece |
| CN101041945A (en) * | 2007-04-10 | 2007-09-26 | 江苏法尔胜新日制铁缆索有限公司 | Connecting method of bracing cable for bridge |
| CN101298754A (en) * | 2008-05-16 | 2008-11-05 | 上海市政工程设计研究总院 | Pin abut type lifting rope |
| CN102979808A (en) * | 2011-09-06 | 2013-03-20 | 朱克团 | Self-adaptation type connection rod |
| CN102392490A (en) * | 2011-11-02 | 2012-03-28 | 中国建筑第八工程局有限公司 | Truss support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105019351A (en) | 2015-11-04 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160719 Address after: 430056 Wuhan economic and Technological Development Zone, Hubei, Wuhan (Zhuankou) erudite Road, No. 8 Applicant after: China Zhongtie Major Bridge Reconnaissance & Design Institute Co., Ltd. Applicant after: CHINA RAILWAY CORPORATION Address before: 430056 Wuhan economic and Technological Development Zone, Hubei, Wuhan (Zhuankou) erudite Road, No. 8 Applicant before: China Zhongtie Major Bridge Reconnaissance & Design Institute Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |