CN105019351A - 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 PDF

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Publication number
CN105019351A
CN105019351A CN201510432063.9A CN201510432063A CN105019351A CN 105019351 A CN105019351 A CN 105019351A CN 201510432063 A CN201510432063 A CN 201510432063A CN 105019351 A CN105019351 A CN 105019351A
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CN
China
Prior art keywords
stiffening
sling
pin
ear plate
otic placode
Prior art date
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.)
Granted
Application number
CN201510432063.9A
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Chinese (zh)
Other versions
CN105019351B (en
Inventor
徐恭义
唐贺强
王东绪
刘汉顺
胡骏
杜萍
王志平
张德平
薛雄
李刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China State Railway Group Co Ltd
China Railway Major Bridge Reconnaissance and Design Institute Co Ltd
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China Railway Major Bridge Reconnaissance and Design Institute Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by China Railway Major Bridge Reconnaissance and Design Institute Co Ltd filed Critical China Railway Major Bridge Reconnaissance and Design Institute Co Ltd
Priority to CN201510432063.9A priority Critical patent/CN105019351B/en
Publication of CN105019351A publication Critical patent/CN105019351A/en
Application granted granted Critical
Publication of CN105019351B publication Critical patent/CN105019351B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Can the hoist cable lower end pin joint formula coupling assembling of lateral rotation
Technical field
The present invention relates to bridge technology field, be specifically related to a kind of for be connected between sling of suspension bridge with stiff girder and hoist cable anchor mouth place steel wire bent secondary stresses can be reduced and avoid otic placode laterally to destroy can the hoist cable lower end pin joint formula coupling assembling of lateral rotation.
Background technology
Along with the needs of China's economy and social development, be cross over great rivers, deep valley straits, be communicated with natural barrier, need to build Longspan Bridge.Suspension bridge is more and more subject to the favor of bridge engineering teacher as the bridge type that span ability is up to now maximum and obtains popular extensive approval with the imposing manner of its extensive magnificence.
Sling of suspension bridge is the important Force transmission parts passed to by load on stiff girder on main push-towing rope, and the reliability being connected anchoring between hoist cable with stiff girder directly has influence on hoist cable power transmission.Between hoist cable with stiff girder, pin joint formula is connected because simplifying anchoring structure on stiff girder, facilitates stiff girder to install and safeguards and be widely used.But under transverse load effect, stiff girder transverse shifting, hoist cable lateral inclination, because anchor head under hoist cable cannot lateral rotation and still keep vertical, hoist cable and lower anchor head produce at anchor mouth place and laterally bend, and cause hoist cable anchor mouth place steel wire bent secondary stresses larger; In addition, between hoist cable direction of pull and stiff girder otic placode vertical direction, there is angle, produce larger transverse bending moment at otic placode root run place, cause otic placode weld seam to destroy.
Summary of the invention
The object of the invention is for above-mentioned present situation, aim to provide a kind of not only can ensure that power transmission between hoist cable and stiff girder otic placode is safe and reliable but also can realize lateral rotation between hoist cable anchor head and stiff girder can the hoist cable lower end pin joint formula coupling assembling of lateral rotation.
The implementation of the object of the invention is, can the hoist cable lower end pin joint formula coupling assembling of lateral rotation, with pinned connection between lower anchor head fork-shaped otic placode and stiff girder otic placode, stiff girder otic placode is laterally processed into arc surface for the circular hole sidewall connecting bearing pin, establishes arc groove in the middle of bearing pin, and on stiff girder otic placode, on arc surface and bearing pin, arc groove matches, self-lubricating material lining is provided with at contact surface, slot in bearing pin one end, baffle plate inserts in fluting, to limit bearing pin transverse shifting.
The present invention has following advantage:
1, can relative lateral rotations between anchor head and stiff girder under hoist cable, under Lateral Force, under hoist cable, anchor head, with hoist cable lateral inclination, is avoided hoist cable and lower anchor head to produce at anchor mouth place and laterally bend, reduction hoist cable anchor mouth place steel wire bent secondary stresses;
2, under hoist cable, anchor head with hoist cable lateral inclination, can reduce the arm of force of hoist cable line of pull to stiff girder otic placode commissure, avoids because the transverse bending moment excessive otic placode weld seam that causes in stiff girder otic placode place destroys;
3, reduce sling steel wire stress and avoid otic placode laterally to destroy, thus ensureing power transmission safety between hoist cable and stiff girder otic placode.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 be the A-A of Fig. 1 to profile,
Fig. 3 is part B enlarged diagram in Fig. 2.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technology of the present invention content is described in further detail.
With reference to Fig. 1,2,3, lower anchor head fork-shaped otic placode 1 of the present invention is connected with bearing pin 3 with between stiff girder otic placode 2, stiff girder otic placode is laterally processed into arc surface for the circular hole sidewall connecting bearing pin, arc groove is established in the middle of bearing pin, on stiff girder otic placode, on arc surface and bearing pin, arc groove matches, be provided with self-lubricating material lining 5 at contact surface, wear away with the material reducing frictional resistance and force transferring structure between both contact surfaces and ensure between the two can relative lateral rotations.Slot in bearing pin 3 one end, baffle plate 4 inserts in fluting, and is screwed baffle plate 4 on hoist cable otic placode 1, to limit the transverse shifting of bearing pin 3.
In use, when bearing the lateral forces such as wind load as suspension bridge, will there is transverse shifting in stiff girder, hoist cable also produces lateral inclination.Because bearing pin and stiff girder otic placode contact surface are arc surface, and self-lubricating bushing is set between the two, relative lateral rotations can occur, under hoist cable, anchor head is with hoist cable lateral inclination, eliminate the horizontal angle-bending at hoist cable and lower anchor head anchor mouth place, can greatly reduce hoist cable and bend secondary stresses; In addition, after lower anchor head tilts with hoist cable, between hoist cable line of pull and stiff girder otic placode, the weld seam arm of force shortens, and stiff girder otic placode commissure transverse bending moment reduces thereupon, avoids causing otic placode weld seam to destroy because this place's transverse bending moment is excessive.
The longitudinal direction that the present invention not only can realize between stiff girder and hoist cable is rotated, also having between hoist cable and stiff girder can horizontal advantage in relative rotation, be connected with the pin joint formula of stiff girder for sling of suspension bridge, the bending secondary stresses at hoist cable anchor mouth place can be reduced and reduce the transverse bending moment that stiff girder otic placode commissure may exist, reduce sling steel wire stress and avoid otic placode laterally to destroy, ensure power transmission safety between hoist cable and stiff girder otic placode.

Claims (2)

1. can the hoist cable lower end pin joint formula coupling assembling of lateral rotation, it is characterized in that: with pinned connection between lower anchor head fork-shaped otic placode and stiff girder otic placode, stiff girder otic placode is laterally processed into arc surface for the circular hole sidewall connecting bearing pin, arc groove is established in the middle of bearing pin, on stiff girder otic placode, on arc surface and bearing pin, arc groove matches, and is provided with self-lubricating material lining at contact surface, slots in bearing pin one end, baffle plate inserts slots interior and is fixed on lower anchor head fork-shaped otic placode, to limit bearing pin transverse shifting.
2. according to claim 1 can the hoist cable lower end pin joint formula coupling assembling of lateral rotation, it is characterized in that: described self-lubricating material lining is the lining adopting self-lubricating material to manufacture.
CN201510432063.9A 2015-07-21 2015-07-21 Pin-connected connection assembly capable of transversely rotating for lower end of sling Active CN105019351B (en)

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

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CN105019351A true CN105019351A (en) 2015-11-04
CN105019351B CN105019351B (en) 2017-01-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105586826A (en) * 2015-11-30 2016-05-18 湖州交通规划设计院 Connecting structure of anchorage ends of booms of concrete tied arch bridge and construction method of connecting structure
CN110485262A (en) * 2019-07-29 2019-11-22 中交四公局第一工程有限公司 A kind of bridge sling connection structure

Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105586826A (en) * 2015-11-30 2016-05-18 湖州交通规划设计院 Connecting structure of anchorage ends of booms of concrete tied arch bridge and construction method of connecting structure
CN110485262A (en) * 2019-07-29 2019-11-22 中交四公局第一工程有限公司 A kind of bridge sling connection structure

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SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
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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.

C14 Grant of patent or utility model
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