CN104532742A - Compound arch type anchoring system for cable-stayed bridge - Google Patents
Compound arch type anchoring system for cable-stayed bridge Download PDFInfo
- Publication number
- CN104532742A CN104532742A CN201410784347.XA CN201410784347A CN104532742A CN 104532742 A CN104532742 A CN 104532742A CN 201410784347 A CN201410784347 A CN 201410784347A CN 104532742 A CN104532742 A CN 104532742A
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- China
- Prior art keywords
- bridge tower
- bridge
- supporting leg
- fixture
- ground tackle
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a compound arch type anchoring system for a cable-stayed bridge. The system comprises a dorsal cord, a top end fixing component and a bottom end fixing component. The whole system is located on the side, backing onto a midspan, of a bridge tower. The top end of the dorsal cord is installed on a boss at the top end of the bridge tower through the top end fixing component, and the bottom end of the dorsal cord is installed on a supporting leg of the bridge tower through the bottom end fixing component. The bottom end fixing component comprises a protecting sleeve, a water shield, an embedded pipe, a sealed pipe, a tensioning end anchorage device, a protecting sleeve and a protective cover. The bottom end of the dorsal cord is sleeved with the embedded pipe, the bottom end of the embedded pipe is sleeved with the sealed pipe, the bottom end of the sealed pipe is installed in the tensioning end anchorage device, the lower portion of the tensioning end anchorage device is embedded into the supporting leg of the bridge tower, the bottom end of the tensioning end anchorage device is arranged in a tensioning cavity, and the tensioning cavity is arranged inside a support of the supporting leg of the bridge tower. The system adopts a novel designing form by fixing the dorsal cord on the bridge tower to form a stable structure.
Description
Technical field
The present invention relates to a kind of cable stayed bridge dorsal funciculus fixed form, more specifically it is that a kind of cable stayed bridge combines arcuately anchoring system.
Background technology
The bridge tower of cable stayed bridge is generally provided with and organizes suspension cable more, dorsad span centre side be called dorsal funciculus.The upper end of dorsal funciculus is generally fixed on the bridge tower of cable stayed bridge, and the lower end of dorsal funciculus is fixed on bridge.
In common Design of Cable-Stayed Bridge, suspension cable, dorsal funciculus, bridge tower and bridge form a stable system.Bridge and its load be subject to pass to basis by suspension cable and dorsal funciculus.Wherein, dorsal funciculus share stressed very large.Stressed the sharing of the whole bridge of anchor fixed form direct relation of dorsal funciculus.
Specifically, the connected mode of dorsal funciculus and bridge relates to this position under long-term huge load action, and whether stress performance is reliable, whether structure is convenient to inspection and maintenance maintenance.The connected mode of cable-stayed bridge pylon and dorsal funciculus is directly connected to the stable of bed rearrangement bridge and safety.
In existing Design of Cable-Stayed Bridge, dorsal funciculus top is fixed on bridge tower top, and dorsal funciculus bottom is fixed on bridge side bar.This fixed form stability is not satisfactory, and function is comparatively single.Along with the reason of region and various human factor, the harmonious shape of people to the beautiful pursuit in local and building integral requires more and more higher.Single dorsal funciculus is fixed design and can not be satisfied the demands completely.Particularly suspension cable bridge tower, connected mode between bridge and dorsal funciculus need more design form.Under the rational prerequisite of guarantee integral bridge structure stress, need a kind of novel dorsal funciculus fixed form badly.
Summary of the invention
Object of the present invention is exactly the weak point in order to overcome background technology, and provides novel cable stayed bridge to combine arcuately anchoring system, makes integral bridge stability under loading.
For achieving the above object, technical scheme of the present invention is: cable stayed bridge combines arcuately anchoring system, comprises dorsal funciculus, top fixture and bottom fixture, and wherein, dorsal funciculus is positioned at bridge tower span centre side dorsad; The top of bridge tower is provided with bridge tower top boss in span centre side dorsad, and the bottom of bridge tower is provided with bridge tower supporting leg in span centre side dorsad; The top of described dorsal funciculus is arranged on the boss of bridge tower top by top fixture; The bottom of described dorsal funciculus is arranged on bridge tower supporting leg by bottom fixture; Described bottom fixture comprises: be arranged on outside protective sleeve and bucker, is arranged on inner built-in pipe, sealed tube, stretching end ground tackle, protective sleeve and protective cover; The bottom of described dorsal funciculus is sleeved in built-in pipe, the bottom of described built-in pipe is sleeved in sealed tube, the bottom of described sealed tube is arranged in stretching end ground tackle, the bottom of described stretching end ground tackle is imbedded in bridge tower supporting leg, the bottom of described stretching end ground tackle is arranged in stretch-draw cavity, and the bearing that described stretch-draw cavity is arranged on bridge tower supporting leg is inner.
In technique scheme, described top fixture comprises: be arranged on outside protective sleeve and bucker, is arranged on inner built-in pipe, sealed tube, fixed end ground tackle; Described top fixture is arranged on bridge tower top boss, the top of described dorsal funciculus is sleeved in built-in pipe, the top of described built-in pipe is sleeved in sealed tube, and the top of described sealed tube is arranged in fixed end ground tackle, and the top of described fixed end ground tackle is imbedded in the boss of bridge tower top.
In technique scheme, when building bridge tower supporting leg, be first integrally provided in by bottom nozzle mounts on bridge tower supporting leg, then build bridge tower supporting leg, it is inner that the stretch-draw cavity described in guarantee is enclosed in bridge tower supporting leg.
In technique scheme, the portion of external imbedding bridge tower supporting leg of described tension ground tackle is enclosed with more protection cover, and the bottom of described stretching end ground tackle is provided with protective cover, and described protective cover wraps up the part being positioned at stretch-draw cavity of whole stretching end ground tackle; Described protective cover is connected with more protection cover.
In technique scheme, be all provided with damper in top fixture and bottom fixture, described shock absorber is rubber damping formula, oil pressure damp type, shearing viscous damping formula or magnetic-type.
In technique scheme, for being tightly connected between the protective sleeve that top fixture is arranged and bucker; Bottom fixture is arranged between protective sleeve and bucker as being tightly connected.
Compare with traditional approach, the invention has the advantages that:
1. the bottom of dorsal funciculus is fixed on the bottom of bridge tower, and dorsal funciculus and bridge tower form a self-hard structure.
2. the pulling force of dorsal funciculus is directly transferred to bottom bridge tower, and is all born by the basis of bridge tower.
3. after applying the present invention, integral bridge stability under loading.
4. the present invention is novel in design, and structure is clear and definite, can meet engineering demand.
Accompanying drawing explanation
Fig. 1 is that cable stayed bridge of the present invention combines arcuately anchoring system mounting structure schematic diagram.
Fig. 2 is dorsal funciculus bottom mounting structure schematic diagram in the present invention.
Fig. 3 is dorsal funciculus top mounting structure schematic diagram in the present invention.
In figure: dorsal funciculus 1, bridge tower tower body 2, bridge tower top boss 3, bridge tower supporting leg 4, top fixture 5, bottom fixture 6; stretch-draw cavity 7, more protection cover 8, protective cover 9, stretching end ground tackle 10, sealed tube 11; built-in pipe 12, shock absorber 13, protective sleeve 14, bucker 15, fixed end ground tackle 16.
Detailed description of the invention
Describe performance of the present invention in detail below in conjunction with accompanying drawing, but they do not form limitation of the invention, only for example.Simultaneously by illustrating that advantage of the present invention will become clearly and easy understand.
As shown in Figure 1, a kind of cable stayed bridge combines arcuately anchoring system, comprises dorsal funciculus 1, top fixture 5 and bottom fixture 6.Wherein, the top of bridge tower 2 is provided with bridge tower top boss 3, and the bottom of bridge tower 2 is provided with bridge tower supporting leg 4; Described dorsal funciculus 1 is positioned at bridge tower 2 span centre side dorsad.
The bottom of described dorsal funciculus 1 is arranged on bridge tower supporting leg 4 by bottom fixture 6.Described bottom fixture comprises: be arranged on outside protective sleeve 14 and bucker 15, is arranged on inner built-in pipe 12, sealed tube 11, stretching end ground tackle 10, protective sleeve 14 and protective cover 9.
In entirety, described bottom fixture 6 is substantially in cylindrical shape, and bottom is imbedded in the concrete of bridge tower supporting leg 4, and top connects the bottom of dorsal funciculus 1.Protective sleeve 14 and bucker 15 are positioned at bottom fixture 6 top, do not imbed in bridge tower supporting leg 4.Described protective sleeve 14 is cylindrical tube structure, and bottom and bridge tower supporting leg 4 connect.Described bucker 15 is taper platform tubular structure, is positioned at the top of protective sleeve 14, and protective sleeve 14 sealing connects.The central aperture of the bucker 15 that dorsal funciculus 1 passes, the two sealing connects.
The inside of bottom fixture 6, the below of bucker 15 is disposed with shock absorber 13, built-in pipe 12, sealed tube 11, stretching end ground tackle 10 and protective cover 9 vertically.Shock absorber 13 chooses rubber damping formula.The bottom of described dorsal funciculus 1 is sleeved in built-in pipe 12 through shock absorber 13.Described built-in pipe 12 is cylindrical tube structure, is arranged on the inside of protective sleeve 14.The bottom of described built-in pipe 12 is sleeved in sealed tube 11.The bottom of described sealed tube 11 is arranged in stretching end ground tackle 10.
The bottom of described stretching end ground tackle 10 is imbedded in bridge tower supporting leg 4.The position of intersecting with bridge tower supporting leg 4 below described stretching end ground tackle 10, is disposed radially more protection cover 8, bottom end face is arranged protective cover 9.More protection cover 8 and protective cover 9 connect, and ensure the Stability Analysis of Structures of the link position of stretching end ground tackle 10 and bridge tower supporting leg 4.
In the casting process of bridge tower supporting leg 4, described more protection cover 8 and protective cover 9 are first set.Then the bottom of tension ground tackle 10 is placed on the inside of more protection cover 8 and protective cover 9.When building when bridge tower supporting leg 4, leave cavity in advance for arranging stretch-draw cavity 7.The bottom of protective cover 9 and stretching end ground tackle 10 is comprised in described stretch-draw cavity 7.
The top of bridge tower 2, span centre side is provided with bridge tower top boss 3 dorsad.Described bridge tower top boss 3 is provided with top fixture 5.Top fixture 5 is for the top of fixing dorsal funciculus 1.Described top fixture 5 comprises: be arranged on outside protective sleeve 14 and bucker 15, is arranged on inner built-in pipe 12, sealed tube 11, fixed end ground tackle 16.
In entirety, described top fixture 5 is substantially in cylindrical shape, and top is imbedded in bridge tower top boss 3, and bottom connects the top of dorsal funciculus 1.Protective sleeve 14 and bucker 15 are positioned at the bottom of top fixture 5, do not imbed in bridge tower top boss 3.Described protective sleeve 14 is cylindrical tube structure, and top and bridge tower top boss 3 connect.Described bucker 15 is taper platform tubular structure, is positioned at the below of protective sleeve 14, and protective sleeve 14 sealing connects.The central aperture of the bucker 15 that dorsal funciculus 1 passes, the two sealing connects.
The inside of top fixture 5, the top of bucker 15 is disposed with shock absorber 13, built-in pipe 12, sealed tube 11 and fixed end ground tackle 16 vertically.Shock absorber 13 chooses rubber damping formula.The bottom of described dorsal funciculus 1 is sleeved in built-in pipe 12 through shock absorber 13.Described built-in pipe 12 is cylindrical tube structure, is arranged on the inside of protective sleeve 14.The top of described built-in pipe 12 is sleeved in sealed tube 11.The bottom of described sealed tube 11 is arranged in fixed end ground tackle 16.
The top of described fixed end ground tackle 16 is imbedded in bridge tower top boss 3, ensures the Stability Analysis of Structures of the link position of fixed end ground tackle 16 and bridge tower top boss 3.
In the present invention, dorsal funciculus 1 and bridge tower 2 entirety define from fixing structure.
Other unspecified part all has prior art.
Claims (6)
1. cable stayed bridge combines arcuately anchoring system, comprises dorsal funciculus (1), top fixture (5) and bottom fixture (6), it is characterized in that: dorsal funciculus (1) is positioned at bridge tower (2) span centre side dorsad; The top of bridge tower (2) is provided with bridge tower top boss (3) in span centre side dorsad, and the bottom of bridge tower (2) is provided with bridge tower supporting leg (4) in span centre side dorsad; The top of described dorsal funciculus (1) is arranged on bridge tower top boss (3) by top fixture (5); The bottom of described dorsal funciculus (1) is arranged on bridge tower supporting leg (4) by bottom fixture (6); Described bottom fixture (6) comprising: be arranged on outside protective sleeve (14) and bucker (15), is arranged on inner built-in pipe (12), sealed tube (11), stretching end ground tackle (10), protective sleeve (14) and protective cover (9); The bottom of described dorsal funciculus (1) is sleeved in built-in pipe (12), the bottom of described built-in pipe (12) is sleeved in sealed tube (11), the bottom of described sealed tube (11) is arranged in stretching end ground tackle (10), the bottom of described stretching end ground tackle (10) is imbedded in bridge tower supporting leg (4), the bottom of described stretching end ground tackle (10) is arranged in stretch-draw cavity (7), and the bearing that described stretch-draw cavity (7) is arranged on bridge tower supporting leg (4) is inner.
2. cable stayed bridge according to claim 1 combines arcuately anchoring system, it is characterized in that: described top fixture (5) comprising: be arranged on outside protective sleeve (14) and bucker (15), be arranged on inner built-in pipe (12), sealed tube (11), fixed end ground tackle (16); Described top fixture (5) is arranged on bridge tower top boss (3), the top of described dorsal funciculus (1) is sleeved in built-in pipe (12), the top of described built-in pipe (12) is sleeved in sealed tube (11), the top of described sealed tube (11) is arranged in fixed end ground tackle (16), and the top of described fixed end ground tackle (16) is imbedded in bridge tower top boss (3).
3. cable stayed bridge according to claim 1 and 2 combines arcuately anchoring system, it is characterized in that: when building bridge tower supporting leg (4), first bottom nozzle mounts (6) is integrally provided on bridge tower supporting leg (4), then build bridge tower supporting leg (4), it is inner that the stretch-draw cavity (7) described in guarantee is enclosed in bridge tower supporting leg (4).
4. cable stayed bridge according to claim 3 combines arcuately anchoring system, it is characterized in that: the portion of external imbedding bridge tower supporting leg (4) of described tension ground tackle (10) is enclosed with more protection cover (8), the bottom of described stretching end ground tackle (10) is provided with protective cover (9), and described protective cover (9) wraps up the part being positioned at stretch-draw cavity (7) of whole stretching end ground tackle (10); Described protective cover (9) is connected with more protection cover (8).
5. cable stayed bridge according to claim 4 combines arcuately anchoring system, it is characterized in that: in top fixture (5) and bottom fixture (6), damper (13) is all installed, described shock absorber (13) is rubber damping formula, oil pressure damp type, shear viscous damping formula or magnetic-type.
6. cable stayed bridge according to claim 5 combines arcuately anchoring system, it is characterized in that: for being tightly connected between the protective sleeve (14) that top fixture (5) is arranged and bucker (15); Bottom fixture (6) is arranged between protective sleeve (14) and bucker (15) as being tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784347.XA CN104532742B (en) | 2014-12-16 | 2014-12-16 | Cable stayed bridge combines arcuately anchoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784347.XA CN104532742B (en) | 2014-12-16 | 2014-12-16 | Cable stayed bridge combines arcuately anchoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104532742A true CN104532742A (en) | 2015-04-22 |
| CN104532742B CN104532742B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410784347.XA Active CN104532742B (en) | 2014-12-16 | 2014-12-16 | Cable stayed bridge combines arcuately anchoring system |
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| CN (1) | CN104532742B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999323Y (en) * | 2007-02-06 | 2008-01-02 | 同济大学 | Replaceable hoisting rod for half-through or through arch bridges |
| KR20090074133A (en) * | 2009-06-11 | 2009-07-06 | 진성토건 주식회사 | Cable tube mounting apparatus and method for main tower of cable-stayed girder bridge |
| KR20110004067A (en) * | 2009-07-07 | 2011-01-13 | 주식회사 서영엔지니어링 | Cable-stayed girder bridge with simple-span |
| CN102444084A (en) * | 2011-10-18 | 2012-05-09 | 中铁大桥勘测设计院集团有限公司 | Cross supporting structure of arch bridge or main-tower crossbeam structure of cable-stayed bridge or suspension bridge |
| CN102644241A (en) * | 2012-04-05 | 2012-08-22 | 广东省长大公路工程有限公司 | Space curved cable bent tower of cable-stayed bridge |
-
2014
- 2014-12-16 CN CN201410784347.XA patent/CN104532742B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999323Y (en) * | 2007-02-06 | 2008-01-02 | 同济大学 | Replaceable hoisting rod for half-through or through arch bridges |
| KR20090074133A (en) * | 2009-06-11 | 2009-07-06 | 진성토건 주식회사 | Cable tube mounting apparatus and method for main tower of cable-stayed girder bridge |
| KR20110004067A (en) * | 2009-07-07 | 2011-01-13 | 주식회사 서영엔지니어링 | Cable-stayed girder bridge with simple-span |
| CN102444084A (en) * | 2011-10-18 | 2012-05-09 | 中铁大桥勘测设计院集团有限公司 | Cross supporting structure of arch bridge or main-tower crossbeam structure of cable-stayed bridge or suspension bridge |
| CN102644241A (en) * | 2012-04-05 | 2012-08-22 | 广东省长大公路工程有限公司 | Space curved cable bent tower of cable-stayed bridge |
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| Publication number | Publication date |
|---|---|
| CN104532742B (en) | 2016-04-20 |
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