CN109972497A - Suspension cable and bridge tower anchoring structure - Google Patents
Suspension cable and bridge tower anchoring structure Download PDFInfo
- Publication number
- CN109972497A CN109972497A CN201910344909.1A CN201910344909A CN109972497A CN 109972497 A CN109972497 A CN 109972497A CN 201910344909 A CN201910344909 A CN 201910344909A CN 109972497 A CN109972497 A CN 109972497A
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- Prior art keywords
- pulling plate
- tube
- anchor tube
- anchor
- plate
- 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.)
- Pending
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 25
- 239000000725 suspension Substances 0.000 title claims abstract description 25
- 229910001208 Crucible steel Inorganic materials 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 abstract description 24
- 239000010959 steel Substances 0.000 abstract description 24
- 230000002929 anti-fatigue Effects 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 238000010146 3D printing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of suspension cables and bridge tower anchoring structure, the cast steel anchor head including two sides and intermediate connection pulling plate；The cast steel anchor head main body is top inclined anchor tube inwardly, along anchor tube tube wall outer diameter tangential direction, the vertical and parallel pulling plate connector of horizontal extension two panels inwardly；Connection pulling plate is vertically arranged, and both ends are docked with the pulling plate connector of two sides cast steel anchor head respectively.Cast steel anchor head one-step casting molding of the invention, then with connect pulling plate and be fixed, form a kind of Novel steel anchor beam construction, compared to original full welding steel anchor beam, structure is simple and stress is clear, a large amount of welding is avoided, structure size can need to be adjusted flexibly according to stress, and anti-fatigue performance is good.
Description
Technical field
The invention belongs to technical field of bridge engineering, and in particular to a kind of suspension cable and bridge tower anchoring structure.
Background technique
The load overwhelming majority is transmitted on bridge tower by suspension cable in the weight and bridge of cable-stayed bridge bridge span structure, suspension cable with
The anchoring structure of bridge tower is the core component of cable-stayed bridge.The anchoring of suspension cable and bridge tower frequently with mode have ring orientation prestress,
Steel anchor box and steel anchor beam, wherein steel anchor beam is the major way of large span stayed-cable bridge suspension cable and bridge tower anchoring in recent years.It is this
Anchoring structure effectively reduces horizontal component force of stayed cable under regular service conditions by way of itself undertaking drag-line horizontal force and exists
The tensile stress level that Concrete-filled steel tube generates, avoids the setting of ring orientation prestress rib.But steel anchor beam all by plate weld and
At especially anchor head steel splitting plate thickness is big, narrow space, welding point are more, and that there are welding stresses is big, weld industry is difficult
The disadvantages of, so that the manufacturing cost of steel anchor beam anchor head position is high and quality is not easy to control.Furthermore the lifting weight of steel anchor beam is larger,
The type selecting of Sarasota construction tower crane is often lifted Weight control by steel anchor beam.One welding steel anchor beam anchor head weight about 3000 ~
4000kg, entire steel anchor beam anchoring structure weight reach 16000kg ~ 20000kg.Therefore, it is necessary to a kind of simple structures, manufacturer
Just, steel using amount small novel suspension cable and bridge tower anchoring structure.
Summary of the invention
The present invention provides a kind of suspension cables and bridge tower anchoring structure, overcome present in original steel anchor beam anchor structure
The disadvantages of weld anchor head structure is complicated, manufacture difficulty is big, material utilization amount is mostly poor with anti-fatigue performance.
The technical scheme adopted by the invention is as follows:
Suspension cable and bridge tower anchoring structure, it is characterised in that:
Cast steel anchor head and intermediate connection pulling plate including two sides；
The cast steel anchor head main body is top inclined anchor tube inwardly, horizontal inwardly along anchor tube tube wall outer diameter tangential direction
Extend the vertical and parallel pulling plate connector of two panels；
Connection pulling plate is vertically arranged, and both ends are docked with the pulling plate connector of two sides cast steel anchor head respectively.
Anchor tube, pulling plate connector, bearing plate, baffle and bottom plate are the integral piece of monoblock cast.
Vertical baffle is arranged in anchor tube outboard end, and baffle hole shape is arranged according to anchor tube inner wall size.
The bottom surface of anchor tube bottom end is horizontal, and horizontal bottom plate is arranged.
The bearing plate of aperture is arranged in anchor tube spout tops, and bearing plate is perpendicular to anchor tube center line；
When pressure-bearing plate suqare is greater than anchor tube orifice area, bearing plate aperture and anchor tube inner wall drop-over, bearing plate outer edge and anchor tube
Outer wall uses arc transition；
When pressure-bearing plate suqare is equal to anchor tube orifice area, bearing plate outer edge and anchor tube outer wall drop-over, bearing plate aperture and anchor tube
Inner wall uses arc transition.
Connection pulling plate is bar shaped plate structure, can also be constructed for box.
It connects pulling plate and pulling plate connector uses butt welding；
Or connection pulling plate is docked with pulling plate connector using bolt.
Anchor tube is round tube, square tube or polygonal tube construction.
The invention has the following advantages that
The present invention uses the steel anchor beam anchoring structure of cast steel anchor head, and two sides anchor head position is formed with cast steel one-step casting, using drawing
Plate connects two sides anchor head, forms a kind of Novel steel anchor beam construction, compares original complete welding steel anchor beam, and structure is simply and stress
It is clear, a large amount of welding is avoided, structure size can need to be adjusted flexibly according to stress, and anti-fatigue performance is good, 3D printing
Molded technology can guarantee that anchoring structure accurately meets the loading angle of suspension cable.Cast steel anchor head is compared with welding anchor head entirely, steel
Material dosage reduces about 20% ~ 30%.
Detailed description of the invention
Fig. 1 is the main view of the embodiment of the present invention 1；
Fig. 2 is 1 anchor head position cross-sectional view of the embodiment of the present invention；
Fig. 3 is the main view of the embodiment of the present invention 2；
Fig. 4 is 3 anchor head position cross-sectional view of the embodiment of the present invention.
Fig. 5 is 1 anchor head position perspective view of the embodiment of the present invention.
Fig. 6 is 1 anchor head position elevation of the embodiment of the present invention.
Fig. 7 is 1 anchor head position top view of the embodiment of the present invention.
In figure, 1- cast steel anchor head, 2- connection pulling plate, 3- splice plate, 4- bearing plate, 5- pulling plate connector, 6- bottom plate, 7- gear
Plate, 8- anchor tube.
Specific embodiment
The present invention will be described in detail With reference to embodiment.
The present invention relates to a kind of suspension cables and bridge tower anchoring structure, and it is bright to find Path of Force Transfer by solid element topological optimization
True anchoring structure, then force analysis of finite element is carried out to the shape after improvement, obtain final anchoring structure form, including two
The cast steel anchor head 1 of side and intermediate connection pulling plate 2.The outside of the cast steel anchor head 1 is top inclined anchor tube 8 inwardly, anchor
8 tube wall of pipe inwardly it is tangentially extending go out the vertical parallel flaky pulling plate connector 5 of two panels.Connection pulling plate 2 is vertically arranged, both ends point
Pulling plate connector 5 not with two sides cast steel anchor head 1 is butted against and fixed.
Anchor tube 8 can be round tube, square tube or polygonal tube structure.The outside upright of 8 bottom end of anchor tube, and aperture is set in nozzle
With the baffle 7 of 8 inner wall drop-over of anchor tube.The bottom surface of 8 bottom end of anchor tube is horizontal, and is provided with horizontal bottom plate 6, undertakes anchor tube transmitting
Vertical pressure, 6 two sides of bottom plate are arranged bolt hole, can be needed to select proper moment by the bottom plate 6 and steel corbel according to structure stress
Top plate is fixed with bolt.
The bearing plate 4 of aperture is arranged perpendicular to its axial direction, and in nozzle in 8 top orifice plane of anchor tube.4 area of bearing plate is big
In 8 orifice area of anchor tube, 4 aperture of bearing plate and 8 inner wall drop-over of anchor tube, 4 outer edge of bearing plate and 8 outer wall of anchor tube use circular arc mistake
It crosses；Or 4 area of bearing plate is equal to 8 orifice area of anchor tube, 4 outer edge of bearing plate and 8 outer wall drop-over of anchor tube, 4 aperture of bearing plate with
8 inner wall of anchor tube uses arc transition.
Pulling plate 2 is connected as horizontal force caused by tensional element balance two sides suspension cable, is strip plate structure, it is vertical parallel
Two panels is set, docks fixation with the pulling plate connector 5 of two sides respectively；Or connection pulling plate 2 be box structure, respectively with the pulling plate of two sides
The docking of connector 5 is fixed.
Connection pulling plate 2 is directly welded and fixed with pulling plate connector 5；Or connection pulling plate 2 and pulling plate connector 5 add spelling by outside
Fishplate bar 3 is bolted.
Anchor tube 8, connection pulling plate 2, bearing plate 4 and baffle 7 are the integral piece of monoblock cast, and anchor head position uses 3D printing mould
Have monoblock cast, can accurately control mold shape, meet the needs of different suspension cable space angles.
Anchor head position is arranged in pairs, and when lifting can lift anchor head respectively and connection pulling plate and anchor head are connected as entirety again,
Anchor head and pulling plate can also be connected as whole lift.Anchor head position is not provided with ribbed stiffener, and anchor head wall thickness is according to stress need
Will be using uniform thickness or thicken, anchor head position is adjusted according to the angle of suspension cable, but pressure-bearing surface always with suspension cable axis
Vertically.
There are several types of ways of realization by the present invention:
Embodiment 1:
Bearing plate 4 is that side length is 490mm ~ 730mm, the rectangular slab of thick 80mm ~ 100mm, intermediate opening diameter be 295mm ~
430mm.Anchor tube 8 is hollow cylinder, and wall thickness is adjusted according to stress needs, and outer diameter is 455mm ~ 630mm, and inner wall is straight
Diameter is constant, and outer wall and 4 edge of bearing plate use radius for the arc transition of 50mm.In the horizontal direction, anchor tube 8 and pulling plate connector
5 edge uses arc transition, which is no less than 300mm.Pulling plate connector 5 and horizontal plane, pulling plate connect
Head plate thickness is gradient to 40mm from 80mm, and the bolt hole of 9 ~ 12 M22 ~ M30 is arranged, for connect pulling plate 2 and bolted.
6 size of bottom plate need to be matched with tower wall steel corbel top plate.
Embodiment 2:
Bearing plate 4 is that side length is 490mm ~ 730mm, the rectangular slab of thick 80mm ~ 100mm, intermediate opening diameter be 295mm ~
430mm.Anchor tube 8 is hollow cylinder, and wall thickness is adjusted according to stress needs, and outer diameter is 455mm ~ 630mm, and inner wall is straight
Diameter is constant, and outer wall and 4 edge of bearing plate use radius for the arc transition of 50mm.In the horizontal direction, anchor tube 8 and pulling plate connector
5 edge uses arc transition, which is no less than 300mm.Pulling plate connector 5 and horizontal plane, pulling plate connect
Head plate thickness is gradient to 40mm from 80mm, and connection pulling plate 2 and pulling plate connector 5 carry out butt welding, it is desirable that weld seam is full penetration weld.
6 size of bottom plate need to be matched with tower wall steel corbel top plate.
Embodiment 3:
Bearing plate 4 is that side length is 490mm ~ 730mm, the rectangular slab of thick 80mm ~ 100mm, intermediate opening diameter be 295mm ~
430mm.Anchor tube 8 is hollow cylinder, can also be hollow cube, and wall thickness is adjusted according to stress needs, and outer diameter is not
Become, inner diameter is 395mm ~ 530mm, and anchor tube inner wall and 4 chamfering of bearing plate use radius for the arc transition of 50mm.In level
On direction, the edge of anchor tube 8 and pulling plate connector 5 uses arc transition, which is no less than 300mm.Pulling plate connector 5 with
Horizontal plane, pulling plate connector plate thickness are gradient to 40mm from 80mm, and the bolt hole of 9 ~ 12 M22 ~ M30 is arranged, for
Connection pulling plate 2 is bolted.6 size of bottom plate need to be matched with tower wall steel corbel top plate.
Embodiment 4:
Bearing plate 4 is that side length is 490mm ~ 730mm, the rectangular slab of thick 80mm ~ 100mm, intermediate opening diameter be 295mm ~
430mm.Anchor tube 8 is hollow cylinder, can also be hollow cube, and wall thickness is adjusted according to stress needs, and outer diameter is not
Become, inner diameter is 395mm ~ 530mm, and anchor tube inner wall and 4 chamfering of bearing plate use radius for the arc transition of 50mm.In level
On direction, the edge of anchor tube 8 and pulling plate connector 5 uses arc transition, which is no less than 300mm.Pulling plate connector 5 with
Horizontal plane, pulling plate connector plate thickness are gradient to 40mm from 80mm, and connection pulling plate 2 and pulling plate connector 5 carry out butt welding, it is desirable that
Weld seam is full penetration weld.6 size of bottom plate need to be matched with tower wall steel corbel top plate.
The contents of the present invention are not limited to cited by embodiment, and those of ordinary skill in the art are by reading description of the invention
And to any equivalent transformation that technical solution of the present invention is taken, all are covered by the claims of the invention.
Claims (8)
1. suspension cable and bridge tower anchoring structure, it is characterised in that:
The connection pulling plate (2) of cast steel anchor head (1) and centre including two sides；
Cast steel anchor head (1) main body is top inclined anchor tube (8) inwardly, along anchor tube (8) tube wall outer diameter tangential direction, to
The vertical and parallel pulling plate connector (5) of inside horizontal extension two panels；
Connection pulling plate (2) is vertically arranged, and both ends are docked with the pulling plate connector (5) of two sides cast steel anchor head (1) respectively.
2. suspension cable according to claim 1 and bridge tower anchoring structure, it is characterised in that:
Anchor tube (8), pulling plate connector (5), bearing plate (4), baffle (7) and bottom plate (6) are the integral piece of monoblock cast.
3. suspension cable according to claim 2 and bridge tower anchoring structure, it is characterised in that:
Anchor tube (8) outboard end is arranged vertical baffle (7), and baffle hole shape is arranged according to anchor tube (8) inner wall size.
4. suspension cable according to claim 2 and bridge tower anchoring structure, it is characterised in that:
The bottom surface of anchor tube (8) bottom end is horizontal, and horizontal bottom plate (6) are arranged.
5. suspension cable according to claim 2 and bridge tower anchoring structure, it is characterised in that:
The bearing plate (4) of aperture is arranged in anchor tube (8) spout tops, and bearing plate is perpendicular to anchor tube center line；
When bearing plate (4) area is greater than anchor tube (8) orifice area, bearing plate (4) aperture and anchor tube (8) inner wall drop-over, bearing plate
(4) outer edge and anchor tube (8) outer wall use arc transition；
When bearing plate (4) area is equal to anchor tube (8) orifice area, bearing plate (4) outer edge and anchor tube (8) outer wall drop-over, pressure-bearing
Plate (4) aperture and anchor tube (8) inner wall use arc transition.
6. suspension cable according to claim 2 and bridge tower anchoring structure, it is characterised in that:
Connecting pulling plate (2) is bar shaped plate structure, can also be constructed for box.
7. suspension cable according to claim 2 and bridge tower anchoring structure, it is characterised in that:
It connects pulling plate (2) and pulling plate connector (5) and uses butt welding；
Or connection pulling plate (2) is docked with pulling plate connector (5) using bolt.
8. suspension cable according to claim 2 and bridge tower anchoring structure, it is characterised in that:
Anchor tube (8) is round tube, square tube or polygonal tube construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344909.1A CN109972497A (en) | 2019-04-26 | 2019-04-26 | Suspension cable and bridge tower anchoring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910344909.1A CN109972497A (en) | 2019-04-26 | 2019-04-26 | Suspension cable and bridge tower anchoring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109972497A true CN109972497A (en) | 2019-07-05 |
Family
ID=67086588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910344909.1A Pending CN109972497A (en) | 2019-04-26 | 2019-04-26 | Suspension cable and bridge tower anchoring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109972497A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005302A (en) * | 2019-12-30 | 2020-04-14 | 中交路桥华南工程有限公司 | Steel anchor beam mounting method |
| CN111254827A (en) * | 2020-02-24 | 2020-06-09 | 中铁二院工程集团有限责任公司 | Stay cable and bridge tower anchoring structure and manufacturing method |
| CN111364359A (en) * | 2020-04-08 | 2020-07-03 | 五冶集团上海有限公司 | Anchor pipe type cable beam anchoring structure of cable-stayed bridge concrete main beam and positioning method thereof |
| CN111809501A (en) * | 2020-08-18 | 2020-10-23 | 中交第一公路勘察设计研究院有限公司 | Arched bent suspension bridge structure |
| CN111979913A (en) * | 2020-09-09 | 2020-11-24 | 中铁宝桥集团有限公司 | Cable-stayed bridge cable-beam anchoring structure and control method of anchor pipe angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203668828U (en) * | 2014-01-14 | 2014-06-25 | 山东省交通规划设计院 | Bridge tower combination anchoring system applied to space cable cable-stayed bridge |
| CN104562932A (en) * | 2015-01-06 | 2015-04-29 | 大连理工大学 | Embedded type steel anchor box |
| 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 |
| KR101852082B1 (en) * | 2017-11-02 | 2018-04-27 | (주) 피티솔루션 | Re-tensioning anchorage device |
| CN210013107U (en) * | 2019-04-26 | 2020-02-04 | 中交第一公路勘察设计研究院有限公司 | Stay cable and bridge tower anchoring structure |
-
2019
- 2019-04-26 CN CN201910344909.1A patent/CN109972497A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203668828U (en) * | 2014-01-14 | 2014-06-25 | 山东省交通规划设计院 | Bridge tower combination anchoring system applied to space cable cable-stayed bridge |
| CN104562932A (en) * | 2015-01-06 | 2015-04-29 | 大连理工大学 | Embedded type steel anchor box |
| 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 |
| KR101852082B1 (en) * | 2017-11-02 | 2018-04-27 | (주) 피티솔루션 | Re-tensioning anchorage device |
| CN210013107U (en) * | 2019-04-26 | 2020-02-04 | 中交第一公路勘察设计研究院有限公司 | Stay cable and bridge tower anchoring structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005302A (en) * | 2019-12-30 | 2020-04-14 | 中交路桥华南工程有限公司 | Steel anchor beam mounting method |
| CN111005302B (en) * | 2019-12-30 | 2021-07-30 | 中交路桥华南工程有限公司 | Steel anchor beam mounting method |
| CN111254827A (en) * | 2020-02-24 | 2020-06-09 | 中铁二院工程集团有限责任公司 | Stay cable and bridge tower anchoring structure and manufacturing method |
| CN111254827B (en) * | 2020-02-24 | 2021-08-27 | 中铁二院工程集团有限责任公司 | Stay cable and bridge tower anchoring structure and manufacturing method |
| CN111364359A (en) * | 2020-04-08 | 2020-07-03 | 五冶集团上海有限公司 | Anchor pipe type cable beam anchoring structure of cable-stayed bridge concrete main beam and positioning method thereof |
| CN111809501A (en) * | 2020-08-18 | 2020-10-23 | 中交第一公路勘察设计研究院有限公司 | Arched bent suspension bridge structure |
| CN111979913A (en) * | 2020-09-09 | 2020-11-24 | 中铁宝桥集团有限公司 | Cable-stayed bridge cable-beam anchoring structure and control method of anchor pipe angle |
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