CN101793002A - Overall composite towing beam arching structure for railway steel truss girder cable-stayed bridge - Google Patents
Overall composite towing beam arching structure for railway steel truss girder cable-stayed bridge Download PDFInfo
- Publication number
- CN101793002A CN101793002A CN 201010134155 CN201010134155A CN101793002A CN 101793002 A CN101793002 A CN 101793002A CN 201010134155 CN201010134155 CN 201010134155 CN 201010134155 A CN201010134155 A CN 201010134155A CN 101793002 A CN101793002 A CN 101793002A
- Authority
- CN
- China
- Prior art keywords
- cable
- steel
- plate
- tie
- truss girder
- 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
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an overall composite towing beam arching structure for a railway steel truss girder cable-stayed bridge, which aims to uniformly transfer a cable force to a main truss structure, has high integrity without generating greater stress concentration phenomenon at key parts such as a welding seam and the like, and improves the anti-fatigue performance of the structure. The structure comprises a pair of overall arch plates (11 and 12) and a steel anchor box (20), wherein the pair of overall arch plates (11 and 12) are formed by extending upwards directly from node plates on the two sides of the top chord of a main truss; the steel anchor box (20) is arranged between the upper parts of the pair of overall arch plates (11 and 12) and is fixed with the upper parts of the overall arch plates (11 and 12); a steel sleeve tube (N7) through which a stayed-cable can pass is fixedly arranged in the steel anchor (20); and the stayed-cable axis of the steel sleeve tube (N7) is crossed with the central line (1) of a node of the main truss, an upper chord system line (2) and a diagonal web member system line (3).
Description
Technical field
The present invention relates to the Railway Steel Truss girder stayed-cable bridge, particularly apply to the cable beam anchoring structure of Railway Steel Truss girder stayed-cable bridge.
Background technology
Along with the bridge construction development of technology, cable stayed bridge is developed rapidly, more and more comes many large span stayed-cable bridges to obtain design-build.In order to alleviate the intensity of construction weight, raising structure, girder generally adopts steel work to large span stayed-cable bridge.And the processing of the anchor connection between suspension cable and the girder steel is one of key issue of design.Cable beam anchoring structure is a zone that local stress is big, power transmission is complicated, and it will be distributed to girder section with the huge Suo Li that comes from the suspension cable transmission.The linear flow of should as far as possible exerting all one's strength during design is smooth, avoids occurring excessive stress concentration phenomenon, otherwise, under long-term dynamic load and action of static load, fatigue or strength failure may appear.
The large span stayed-cable bridge girder adopts the steel box-beam structure more.At present, common cable beam anchoring structure mainly contains following 4 kinds in the large-span steel box girder stayed-cable bridge:
1, the box cable beam anchoring structure of anchor.This anchor structure is provided with anchoring beam (piece), and anchoring beam (piece) is connected with girder with welding or high-strength bolt, and suspension cable is anchored on the anchoring beam (piece); Also have girder is gone out bracket as the anchoring beam the outer second month in a season.Because anchoring beam (piece) needs reinforcement in a plurality of directions, when design, generally make the anchor case.Japan pregnancy bridge, cabinet stone island bridge, the more Luo Daqiao, China's yangtze river in nanjing one bridge etc. have all adopted this anchor structure.The main deficiency that this anchor structure exists is, connects on the zone that web is positioned at the anchor box plate outside to be easy to generate serious stress concentration.
2, otic placode formula cable beam anchoring structure.Web by girder protrudes upward an otic placode, and suspension cable is anchored on the otic placode by hinge or steel pipe, and Suo Li is directly passed to the web of girder by otic placode.What Normandy bridge of France adopted promptly is this anchor structure.In this anchor structure, because bearing pin is to the extruding of pin-and-hole wall, formed huge local pressure at hole wall, may cause local compression unstability or material yield, and had the very special rolling-mill section of high-yield strength because near otic placode local stress requirement greatly pin-and-hole is used.
3, anchor tube formula cable beam anchoring structure.Be that a steel pipe is installed on the web of girder or longeron, suspension cable is anchored in steel pipe, and Suo Li passes to the web of girder or longeron by steel pipe.The name port west bridge of Japan, the Shantou, Guangdong of giving birth to mouthful bridge and China stone bridge of delaying has all adopted this anchor structure.The main deficiency that this anchor structure exists is, to occur bigger stress easily concentrated contact extruding place for girder web and anchor tube.
4, anchor pulling plate cable beam anchoring structure.This anchor structure be with steel plate as the anchor arm-tie, the anchor arm-tie is made up of upper, middle and lower two parts: anchor arm-tie top fluting, notch inboard are welded in the anchor tube outside, suspension cable passes anchor tube and is anchored at the anchor tube bottom with ground tackle; Anchor arm-tie bottom is directly with weld seam and the welding of girder upper flange; Anchor arm-tie middle part also need connect upper and lower two parts except satisfying the space requirement that ground tackle is installed.In order to compensate the weakening of slotted section, and strengthen its lateral stiffness and globality, the both sides welding stiffener of anchor arm-tie to anchor arm-tie cross section.In addition, pass to girder equably for guaranteeing Suo Li, with the girder upper flange thickening of anchor arm-tie join domain, steel girder web is set up stiffener.Adopt the Canadian An Naxisi bridge of having of this anchor structure and China Fujian Qingzhou Min River Bridge and Zhanjiang Bay Bridge.The main deficiency that this anchor structure exists is that comparatively serious stress concentration appears in the anchor arm-tie near weld seam, and the plastic zone early occurs at the root of weld easily.
In addition, above-mentioned cable beam anchoring structure all is used for steel case beam, and for steel truss girder cable-stayed bridge, above-mentioned anchor structure will have bigger limitation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure, Suo Li can be passed to main truss structure equably, has good whole, and key position such as weld seam do not produce bigger stress concentration phenomenon, improves the anti-fatigue performance of structure.
The technical solution adopted for the present invention to solve the technical problems is: Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure of the present invention, it is characterized in that: it comprises by the main truss both sides gusset plate that winds up and directly extends upward and form a pair of solid anchor arm-tie, and is arranged on this between the solid anchor arm-tie top and fixedly connected with it steel anchor box; Be set with the steel sleeve that passes for suspension cable in the steel anchor box, the suspension cable axis of steel sleeve and main truss node center line, the system line of winding up, diagonal web member system line cross.
The invention has the beneficial effects as follows, constitute cable beam anchoring structure by monolithic anchor arm-tie and steel anchor box are compound, monolithic anchor arm-tie and the main truss gusset plate that winds up combines together, has good whole, overcome the shortcoming of existing various cable beam anchoring structures effectively, and avoided the defect problem that produces in the plate connection procedure, also make things convenient for engineering to make simultaneously; Combine closely, arrange compactness between steel anchor box, monolithic anchor arm-tie and the main truss upper chord three, the length of anchor arm-tie and the material of bolt that is connected usefulness or weld seam have been reduced, key positions such as weld seam do not produce bigger stress concentration phenomenon, improve the anti-fatigue performance of structure; Suspension cable anchor head position is relatively low, is convenient to the inspection maintenance of later stage to suspension cable anchor head and anchor structure; Suspension cable axis and main truss node center line, the system line of winding up, diagonal web member system line cross, and the power transmission process is clear and definite, and force path is brief; The inner complete closed of steel anchor box has solved the anticorrosion problem of steel anchor box inside well.
Description of drawings
This manual comprises following five width of cloth accompanying drawings:
Fig. 1 is overall composite cable beam anchoring structure of the present invention and structural representation;
Fig. 2 is the sectional drawing along A-A line among Fig. 1;
Fig. 2 is the sectional drawing along B-B line among Fig. 1;
Fig. 4 is the sectional drawing along C-C line among Fig. 1;
Fig. 5 is the zoomed-in view of local D among Fig. 2.
Component shown in the figure, toponym and pairing mark: node center line 1, the system line of winding up 2, diagonal web member system line 3, suspension cable axis 4, solid anchor arm-tie 11, solid anchor arm-tie 12, steel anchor box 20, rear enclosed plate N1, vertical bearing plate N2, arc transition section N2a, horizontal bearing plate N3, preceding closure plate N4, backing plate N5, stiffening rib N6, steel sleeve 21.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to Fig. 1 and Fig. 3, Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure of the present invention, it comprises by the main truss both sides gusset plate that winds up and directly extends upward and form a pair of solid anchor arm- tie 11,12, and is arranged on this between solid anchor arm- tie 11,12 tops and fixedly connected with it steel anchor box 20.Promptly constitute cable beam anchoring structure by monolithic anchor arm- tie 11,12 and steel anchor box 20 are compound, monolithic anchor arm- tie 11,12 and the main truss gusset plate that winds up combines together, has good whole, improve the anti-fatigue performance of structure, overcome the shortcoming of existing various cable beam anchoring structures effectively, and avoided the defect problem that produces in the plate connection procedure, also make things convenient for engineering to make simultaneously.Combine closely, arrange compactness between steel anchor box 20, monolithic anchor arm- tie 11,12 and the upper chord three, reduced the length of anchor arm-tie and the material of bolt that is connected usefulness or weld seam, therefore can save material that whole anchor structure uses.Suspension cable anchor head position is relatively low, is convenient to the inspection maintenance of later stage to suspension cable anchor head and anchor structure.Be set with the steel sleeve N7 that passes for suspension cable in the steel anchor box 20, suspension cable axis 4 and main truss node center line 1, the system line of winding up 2, the diagonal web member system line 3 of steel sleeve N7 cross, and the power transmission process is clear and definite, and force path is brief.
With reference to Fig. 2, described steel anchor box 20 comprises the groined type structure that is made of a pair of horizontal bearing plate N3 and a pair of vertical bearing plate N2, the transverse ends of vertical bearing plate N2 and 11,12 welding of solid anchor arm-tie, be that steel anchor box 20 both sides all are connected with solid anchor arm- tie 11,12, stressed even, there is not eccentric concentrated force problem.With reference to Fig. 5, for avoiding weld seam end stress concentration phenomenon, the end of described vertical bearing plate N2 and 11,12 welding of solid anchor arm-tie has arc transition section N2a.Reference 1 and Fig. 4 for further strengthening the mechanical characteristic of steel anchor box 20, are arranged at intervals with stiffening rib N6 on the described vertical bearing plate N2 outer surface, each stiffening rib N6 and vertical bearing plate N2, backing plate N5 welding.
See figures.1.and.2, be welded with backing plate N5 and preceding closure plate N4 on the front end of described groined type structure, be welded with rear enclosed plate N1 on the rear end, preceding closure plate N4, rear enclosed plate N1 and the box structure that seals with 11, the 12 welding formation of solid anchor arm-tie.Steel anchor box 20 inner complete closed have solved the anticorrosion problem of steel anchor box 20 inside well.Described steel sleeve N7 passes preceding closure plate N4, rear enclosed plate N1 and is fixedly welded on it.
Some principles of the above Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure of the present invention that just explains through diagrams, be not be the present invention to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized, the claim that all belongs to the present invention and applied for.
Claims (6)
1. Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure, it is characterized in that: it comprises by the main truss both sides gusset plate that winds up and directly extends upward and form a pair of solid anchor arm-tie (11,12), and is arranged on this between solid anchor arm-tie (11, the 12) top and fixedly connected with it steel anchor box (20); Be set with the steel sleeve (N7) that passes for suspension cable in the steel anchor box (20), the suspension cable axis (4) of steel sleeve (N7) crosses with main truss node center line (1), the system line of winding up (2), diagonal web member system line (3).
2. Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure according to claim 1, it is characterized in that: described steel anchor box (20) comprises the groined type structure that is made of a pair of horizontal bearing plate (N3) and a pair of vertical bearing plate (N2), the transverse ends of vertical bearing plate (N2) and solid anchor arm-tie (11,12) welding.
3. as Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure as described in the claim 2, it is characterized in that: be welded with backing plate (N5) and preceding closure plate (N4) on the front end of described groined type structure, be welded with rear enclosed plate (N1) on the rear end, preceding closure plate (N4), rear enclosed plate (N1) and the box structure that seals with solid anchor arm-tie (11,12) welding formation.
4. as Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure as described in the claim 3, it is characterized in that: described steel sleeve (N7) passes preceding closure plate (N4), rear enclosed plate (N1) and is fixedly welded on it.
5. as Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure as described in the claim 4, it is characterized in that: be arranged at intervals with stiffening rib (N6) on described vertical bearing plate (N2) outer surface, each stiffening rib (N6) and vertical bearing plate (N2), backing plate (N5) welding.
6. as Railway Steel Truss girder stayed-cable bridge overall composite cable beam anchoring structure as described in the claim 2,3 or 4, it is characterized in that: described vertical bearing plate (N2) has arc transition section (N2a) with the end of solid anchor arm-tie (11,12) welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101341556A CN101793002B (en) | 2010-03-29 | 2010-03-29 | Overall composite towing beam arching structure for railway steel truss girder cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101341556A CN101793002B (en) | 2010-03-29 | 2010-03-29 | Overall composite towing beam arching structure for railway steel truss girder cable-stayed bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101793002A true CN101793002A (en) | 2010-08-04 |
| CN101793002B CN101793002B (en) | 2012-01-25 |
Family
ID=42585899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101341556A Active CN101793002B (en) | 2010-03-29 | 2010-03-29 | Overall composite towing beam arching structure for railway steel truss girder cable-stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101793002B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103397593A (en) * | 2013-08-12 | 2013-11-20 | 中铁大桥勘测设计院集团有限公司 | Web member intersecting and split joint connector structure in positions of steel truss girder bridge nodes |
| CN104652271A (en) * | 2014-12-22 | 2015-05-27 | 郑州市交通规划勘察设计研究院 | Cable combined anchoring block of corrugated-steel-web cable-stayed bridge |
| CN104790289A (en) * | 2014-05-26 | 2015-07-22 | 北京地圣科创建设工程有限公司 | Steel composite PSC corrugated steel plate U-shaped girder simple bridge and continuous bridge |
| CN106192750A (en) * | 2016-07-11 | 2016-12-07 | 中北大学 | A kind of cable-girder anchorage zone explosion-proof defense of resistance to impact system and preparation method thereof |
| CN107268421A (en) * | 2017-08-11 | 2017-10-20 | 湖南省交通规划勘察设计院有限公司 | Spatial Cable face steel truss girder cable-stayed bridge cable beam anchoring component and Spatial Cable face steel truss girder cable-stayed bridge |
| CN109056529A (en) * | 2018-09-25 | 2018-12-21 | 中铁二院工程集团有限责任公司 | A kind of steel anchor box suitable for rail iron trusses suspension bridge pin joint formula hoist cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0896108A2 (en) * | 1997-08-05 | 1999-02-10 | Dyckerhoff & Widmann Aktiengesellschaft | Method for installing and tensioning a free tendon, and device for carrying out the method |
| CN101191321A (en) * | 2007-11-26 | 2008-06-04 | 中铁大桥勘测设计院有限公司 | Cable-stayed bridge inclined dragline and steel main bear armtie type anchoring 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 |
-
2010
- 2010-03-29 CN CN2010101341556A patent/CN101793002B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0896108A2 (en) * | 1997-08-05 | 1999-02-10 | Dyckerhoff & Widmann Aktiengesellschaft | Method for installing and tensioning a free tendon, and device for carrying out the method |
| CN101191321A (en) * | 2007-11-26 | 2008-06-04 | 中铁大桥勘测设计院有限公司 | Cable-stayed bridge inclined dragline and steel main bear armtie type anchoring 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 |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101967795B (en) * | 2010-10-21 | 2011-11-30 | 中铁大桥勘测设计院有限公司 | Novel built-in cable-truss anchoring structure and construction method thereof |
| CN103397593A (en) * | 2013-08-12 | 2013-11-20 | 中铁大桥勘测设计院集团有限公司 | Web member intersecting and split joint connector structure in positions of steel truss girder bridge nodes |
| CN104790289A (en) * | 2014-05-26 | 2015-07-22 | 北京地圣科创建设工程有限公司 | Steel composite PSC corrugated steel plate U-shaped girder simple bridge and continuous bridge |
| CN104652271A (en) * | 2014-12-22 | 2015-05-27 | 郑州市交通规划勘察设计研究院 | Cable combined anchoring block of corrugated-steel-web cable-stayed bridge |
| CN104652271B (en) * | 2014-12-22 | 2016-06-15 | 郑州市交通规划勘察设计研究院 | A kind of drag-line combination anchor block of Wavelike steel webplate cable-stayed bridge |
| CN106192750A (en) * | 2016-07-11 | 2016-12-07 | 中北大学 | A kind of cable-girder anchorage zone explosion-proof defense of resistance to impact system and preparation method thereof |
| CN107268421A (en) * | 2017-08-11 | 2017-10-20 | 湖南省交通规划勘察设计院有限公司 | Spatial Cable face steel truss girder cable-stayed bridge cable beam anchoring component and Spatial Cable face steel truss girder cable-stayed bridge |
| CN109056529A (en) * | 2018-09-25 | 2018-12-21 | 中铁二院工程集团有限责任公司 | A kind of steel anchor box suitable for rail iron trusses suspension bridge pin joint formula hoist cable |
| CN109056529B (en) * | 2018-09-25 | 2024-03-08 | 中铁二院工程集团有限责任公司 | Steel anchor box suitable for pin joint type sling of railway steel truss girder suspension bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101793002B (en) | 2012-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201648967U (en) | Integrally combined cable girder anchoring structure for railway steel truss girder cable stayed bridge | |
| CN101793002B (en) | Overall composite towing beam arching structure for railway steel truss girder cable-stayed bridge | |
| CN204530475U (en) | Little width bridge deck wet seam syndeton | |
| CN108193607B (en) | Fabricated prestressed truss for reinforcement and construction method thereof | |
| CN204589815U (en) | Prefabricated assembled FRP-steel-concrete combined bridge deck | |
| CN106677062B (en) | A kind of close crossbeam orthotropic deck architecture of double girders | |
| CN107386090A (en) | The more chamber box girder with corrugated steel webs constructions of combined type | |
| CN109403465A (en) | A kind of steel-concrete combined joint and preparation method thereof | |
| CN108756409A (en) | A kind of anti-seismic structure improving reinforced concrete frame endurance and stiffness and energy consumption | |
| CN203307736U (en) | Reinforced concrete T-shaped beam bridge reinforced structure | |
| CN202064276U (en) | Cable-girder anchorage structure of railway steel truss cable stayed bridge | |
| CN107794833A (en) | Overlap the edge-beam and its assembling method of girder segment | |
| CN209114297U (en) | Composite Steel-Concrete Bridges structure and combined bridge deck | |
| CN209339326U (en) | A kind of steel-concrete combined joint | |
| CN108374324B (en) | large truss arch bridge | |
| CN207793840U (en) | Double limb steel pipe roof truss-arched structures and deck type steel reinforced concrete ribbed arch bridge containing the structure | |
| CN108265613B (en) | Steel-concrete arch ring chord member structure of steel truss arch | |
| CN202416173U (en) | Wide girder bridge floor system structure with horizontal K support | |
| CN109629418A (en) | A kind of close stringer system segmentation prestressing force overlapping concrete slab and construction method | |
| CN206753183U (en) | Reinforcement of weld structure at the ZGu2 remodeling intensive bolts of tower main material node | |
| CN202809478U (en) | Edge main grider structure shaped like Chinese character 'shang' of concrete superposed beam cable-stayed bridge | |
| CN206529890U (en) | A kind of assembled honeycomb web beam column node connection device for recovering function | |
| CN202401384U (en) | Ballasting structure of steel-truss cable-stayed bridge | |
| CN203559338U (en) | Node connecting structure for upper chord of steel truss and web members | |
| CN204662264U (en) | Large span stayed-cable bridge cable beam anchoring constructs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |