CN102704395A - Internal inhaul cable and steel anchor box anchoring structure - Google Patents
Internal inhaul cable and steel anchor box anchoring structure Download PDFInfo
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- CN102704395A CN102704395A CN2012101787161A CN201210178716A CN102704395A CN 102704395 A CN102704395 A CN 102704395A CN 2012101787161 A CN2012101787161 A CN 2012101787161A CN 201210178716 A CN201210178716 A CN 201210178716A CN 102704395 A CN102704395 A CN 102704395A
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- main truss
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Abstract
The invention relates to a novel structure form anchoring between an inhaul cable and a steel beam. Two anchor steel plates are welded on gusset plates of the steel beam through shear force welds along the stress direction of the inhaul cable, two partitions are welded between the two anchor steel plates to form a steel anchor box structure taking the shape of a Chinese character jing, an anchor shim plate is welded on the steel anchor box structure taking the shape of the Chinese character jing to form the steel anchor box, the inhaul cable is anchored on the anchor shim plate of the steel anchor box through anchor nuts to form a cable-beam anchor zone, and a manhole is formed in a top plate of a main truss upper chord member so as to facilitate inspection of the cable-beam anchor zone by maintenance personnel. Through adopting the invention, external force acting on the steel trussed beam is transmitted to the anchor plates through the gusset plates of the main truss upper chord member and the shear force welds of the anchor plate, and then is transmitted to the inhaul cable through the anchor shim plate; the cable-beam anchor zone is integrated with the main truss into a whole, the structure is simple, the force transmission route is clear, the stress is reasonable, and meanwhile, the cable-beam anchor zone can be manufactured in a factory, and only the anchor nuts are required to be mounted inside the gusset plates of the main truss upper chord member on the construction site, therefore, the internal inhaul cable and steel anchor box anchoring structure is easy to manufacture and mount, and facilitates quality control.
Description
Technical field
The present invention relates to a kind of built-in drag-line steel anchor box anchor structure.
Background technology
In recent decades; Along with the Chinese society rapid development of economy; To the bridge functional performance require increasingly highly, steel truss girder is applied to stride in the super-huge bridge over strait of river as a kind of novel large span stayed-cable bridge, stiffening girder of suspension bridge form of structure more and more widely.In this bridge type, the external load that girder bears passes to king-tower or main push-towing rope through drag-line, and then passes to bottom foundation structure, and in this force transfer system, the anchor structure of drag-line and girder is the key for design position, has characteristics such as power transmission is big, stress complicacy.Several kinds of modes below the anchorage style of drag-line and girder adopts usually: 1, external hanger or the anchoring of anchor arm-tie.Hanger or anchor arm-tie and girder steel attachment weld are directly drawn, and need to pay close attention to the fatigue strength of weld seam.2, the anchor case runs through the girder steel rod member, outside anchoring.Though can avoid weld seam directly to be drawn, but steel anchor box need pass baroque node, be prone to conflict and become the factor of restriction steel truss girder purlin formula layout with the steel truss girder web member.To the shortcoming of traditional cable beam anchoring structure, my company proposes the cable beam anchoring structure and places the inner a kind of brand-new anchorage style of girder steel rod node, has stressed clear and definite, simple structure and does not influence advantage such as view.
Summary of the invention
The objective of the invention is to above-mentioned present situation, aim to provide a kind of stressed clearly, simple structure is convenient to the built-in drag-line steel anchor box anchor structure of quality control.
The implementation of the object of the invention does; Built-in drag-line steel anchor box anchor structure receives force direction that two anchor plates are welded on main truss through the shearing weld seam along drag-line and winds up on the gusset plate, be welded with two anchoring dividing plates between two anchor plates and form a groined type steel anchor box structure; The anchoring welding with backing is connected on the groined type steel anchor box structure and forms steel anchor box; Through the anchoring nut with anchor-hold on steel anchor box anchoring backing plate, form cable-girder anchorage zone, on main truss upper cord member top board, be provided with manhole.
The present invention receives force direction that two anchor plates are welded on main truss through the deep groove fillet weld along drag-line to wind up on the gusset plate; By shear transfer internal force; Be welded with two dividing plates between two anchor plates and form a groined type steel anchor box structure; The anchoring welding with backing is connected on the groined type steel anchor box structure and forms steel anchor box, through the anchoring nut with anchor-hold on steel anchor box anchoring backing plate.
Adopt the present invention; The external force that acts on the steel truss girder passes to anchor plate through the wind up deep groove fillet weld of gusset plate and anchor plate of main truss; By shear transfer internal force, pass to drag-line through the anchoring backing plate then, avoided shortcomings such as weld seam is drawn, external anchor arm-tie landscape effect difference.Cable-girder anchorage zone and girder combine together, and simple structure, power transmission route are clear and definite, reasonable stress, and cable-girder anchorage zone can be made in factory simultaneously, and the job site only needs to be convenient to quality control at the main truss inner anchoring nut of installing of gusset plate that winds up.
Description of drawings
To be the present invention use elevation at the large span stayed-cable bridge typical node that winds up to Fig. 1,
Fig. 2 be the A-A of Fig. 1 to view,
Fig. 3 be the B-B of Fig. 1 to view,
Fig. 4 be the C-C of Fig. 1 to view,
To be the present invention use elevation at the large-span suspension bridge typical node that winds up to Fig. 5.
The specific embodiment
The present invention receives force direction that two anchor plates 1 are welded on main truss through the shearing weld seam along drag-line to wind up on the gusset plate 5, be welded with two anchoring dividing plates 2 between two anchor plates and form a groined type steel anchor box structure 8.Anchoring backing plate 3 is welded on the groined type steel anchor box structure and forms steel anchor box, through the anchoring nut with the anchor-hold in the cable spiral 6 on steel anchor box anchoring backing plate 3, form cable-girder anchorage zone 7.Drag-line transmits the girder load through being connected with groined type steel anchor box structure, and the power transmission route is clear and definite, reasonable stress, and cable-girder anchorage zone can be made in factory simultaneously, and the job site only needs to be convenient to quality control at the main truss inner anchoring nut of installing of gusset plate that winds up.
Below in conjunction with accompanying drawing the present invention is further specified.
With reference to Fig. 1; The present invention is 567 meters of main spans; " N " type truss is adopted in application on the double tower steel truss girder large span stayed-cable bridge, main truss, and cable-girder anchorage zone 7 is in the main truss gusset plate inside of winding up; The main truss top board that winds up is provided with manhole 4, and the maintainer can get into main truss upper cord member inside and overhaul through being arranged on manhole 4 on the main truss upper cord member top board.
With reference to Fig. 2, anchor plate 1 is welded on main truss through the shearing weld seam and winds up on the gusset plate 5, and anchoring dividing plate 2 is welded between two anchor plates 1.Drag-line is anchored on the anchoring backing plate 3 through the anchoring nut.
With reference to Fig. 3, anchoring dividing plate 2 is formed an intersecting parallels steel anchor box structure 8 with anchor plate 1.
With reference to Fig. 4, anchoring dividing plate 2 is welded between two anchor plates 1, and drag-line is anchored on the anchoring backing plate 3 through the anchoring nut in the cable spiral 6.
With reference to Fig. 5, the present invention uses on large-span suspension bridge, and cable-girder anchorage zone is in main truss winds up gusset plate 5.
Claims (2)
1. built-in drag-line steel anchor box anchor structure; It is characterized in that receiving force direction that two anchor plates are welded on main truss through the shearing weld seam along drag-line winds up on the gusset plate; Be welded with two anchoring dividing plates between two anchor plates and form a groined type steel anchor box structure, the anchoring welding with backing is connected on the groined type steel anchor box structure and forms steel anchor box, through the anchoring nut with anchor-hold on steel anchor box anchoring backing plate; Form cable-girder anchorage zone, on main truss upper cord member top board, be provided with manhole.
2. drag-line steel anchor box anchor structure according to claim 1, built-in is characterized in that main truss adopts " N " type truss, and cable-girder anchorage zone (7) is in main truss gusset plate (5) inside of winding up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101787161A CN102704395A (en) | 2012-06-01 | 2012-06-01 | Internal inhaul cable and steel anchor box anchoring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101787161A CN102704395A (en) | 2012-06-01 | 2012-06-01 | Internal inhaul cable and steel anchor box anchoring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102704395A true CN102704395A (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101787161A Pending CN102704395A (en) | 2012-06-01 | 2012-06-01 | Internal inhaul cable and steel anchor box anchoring structure |
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| CN (1) | CN102704395A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912721A (en) * | 2012-11-21 | 2013-02-06 | 中铁第四勘察设计院集团有限公司 | Double-outrigger type cable beam anchoring structure of bridge steel box girder |
| CN103437284A (en) * | 2012-11-14 | 2013-12-11 | 中铁九桥工程有限公司 | Positioning technology for anchor box of member with parallelogram section |
| CN105729063A (en) * | 2016-02-26 | 2016-07-06 | 江苏中铁山桥重工有限公司 | Manufacturing method of double-anchor box type external node chord member |
| CN105862589A (en) * | 2016-02-26 | 2016-08-17 | 江苏中铁山桥重工有限公司 | Manufacturing method for broken-line-shaped double-joint stud welded chord member with anchor boxes |
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| EP1435413A1 (en) * | 2002-12-30 | 2004-07-07 | Yincheng Hou | Improved anchorage sockets for the "novel technique for stay cable system" |
| CN101368369A (en) * | 2008-08-18 | 2009-02-18 | 中铁大桥勘测设计院有限公司 | Penetration type inhaul cable anchorage structure |
| CN201648967U (en) * | 2010-03-29 | 2010-11-24 | 中铁二院工程集团有限责任公司 | Integrally combined cable girder anchoring structure for railway steel truss girder cable stayed bridge |
| CN101967795A (en) * | 2010-10-21 | 2011-02-09 | 中铁大桥勘测设计院有限公司 | Novel built-in cable-truss anchoring structure and construction method thereof |
| CN202064276U (en) * | 2011-05-04 | 2011-12-07 | 中铁二院工程集团有限责任公司 | Cable-girder anchorage structure of railway steel truss cable stayed bridge |
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2012
- 2012-06-01 CN CN2012101787161A patent/CN102704395A/en active Pending
Patent Citations (5)
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| EP1435413A1 (en) * | 2002-12-30 | 2004-07-07 | Yincheng Hou | Improved anchorage sockets for the "novel technique for stay cable system" |
| CN101368369A (en) * | 2008-08-18 | 2009-02-18 | 中铁大桥勘测设计院有限公司 | Penetration type inhaul cable anchorage structure |
| CN201648967U (en) * | 2010-03-29 | 2010-11-24 | 中铁二院工程集团有限责任公司 | Integrally combined cable girder anchoring structure for railway steel truss girder cable stayed bridge |
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| 李军平等: "芜湖长江大桥钢梁制造技术", 《桥梁建设》, no. 5, 31 October 2001 (2001-10-31) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437284A (en) * | 2012-11-14 | 2013-12-11 | 中铁九桥工程有限公司 | Positioning technology for anchor box of member with parallelogram section |
| CN103437284B (en) * | 2012-11-14 | 2016-12-21 | 中铁九桥工程有限公司 | A kind of parallelogram section rod member anchor case localization method |
| CN102912721A (en) * | 2012-11-21 | 2013-02-06 | 中铁第四勘察设计院集团有限公司 | Double-outrigger type cable beam anchoring structure of bridge steel box girder |
| CN102912721B (en) * | 2012-11-21 | 2014-11-12 | 中铁第四勘察设计院集团有限公司 | Double-outrigger type cable beam anchoring structure of bridge steel box girder |
| CN105729063A (en) * | 2016-02-26 | 2016-07-06 | 江苏中铁山桥重工有限公司 | Manufacturing method of double-anchor box type external node chord member |
| CN105862589A (en) * | 2016-02-26 | 2016-08-17 | 江苏中铁山桥重工有限公司 | Manufacturing method for broken-line-shaped double-joint stud welded chord member with anchor boxes |
| CN105729063B (en) * | 2016-02-26 | 2017-11-10 | 江苏中铁山桥重工有限公司 | A kind of box external node chord member preparation method of double anchors |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |