CN208933827U - A kind of steel box girder stayed-cable bridge cable beam anchoring structure - Google Patents
A kind of steel box girder stayed-cable bridge cable beam anchoring structure Download PDFInfo
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- CN208933827U CN208933827U CN201821211142.2U CN201821211142U CN208933827U CN 208933827 U CN208933827 U CN 208933827U CN 201821211142 U CN201821211142 U CN 201821211142U CN 208933827 U CN208933827 U CN 208933827U
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Abstract
The utility model discloses a kind of steel box girder stayed-cable bridge cable beam anchoring structures.It includes the steel anchor box and two blocks of layback plates being arranged at the top of steel box-girder, the conduit passed through for suspension cable is equipped in the steel anchor box, the steel anchor box is fixed between two blocks of layback plates, two blocks of layback plates are parallel with conduit axis, and the vertical web upper end of two of the steel box-girder extends upward steel box-girder back surface respectively and forms described two layback plates.The utility model has many advantages, such as that power transmission is direct, performance is good, facilitates installation and maintenance.
Description
Technical field
The utility model belongs to technical field of bridge engineering, and in particular to a kind of steel box girder stayed-cable bridge cable beam anchoring structure.
Background technique
As China's economic quickly develops, trip demand increases, and Design of Cable-Stayed Bridge is constantly brought forth new ideas with building technology
Development, large span steel box girder stayed-cable bridge, mixing girder stayed-cable bridge gradually increase.Cable beam anchoring connection is to be transmitted to beam body load tiltedly
The important feature of drag-line, it is desirable that power transmission is smooth, construction is succinct, easy to installation and maintenance etc., is the key technical problem of design.Mesh
Preceding steel girder cable-stayed bridge, cable beam anchoring block form mainly have otic placode formula, anchor drawplate type and the box three classes of anchor.Otic placode formula anchoring knot
The stress that otic placode pin hole generates under the extruding of pin shaft in structure exists much larger than the stress on other each plates, each component stress in anchorage zone
Welded seam area numerical value is larger, is not easy to meet design requirement.Anchor drawplate type anchor structure is to be transmitted Suo Li by anchor tie plate structure
Web is indulged to side, web is indulged on side and the equal stress of anchor tie plate is larger, especially anchor tie plate and bridge floor commissure, anchor tie plate and anchor trombone slide
Commissure, anchor tie plate aperture fillet at, it is very prominent that stress collection neutralizes fatigue problem, often control design case.The box anchor of anchor
Fixing structure is to be indulged at the attachment weld of web by anchor case with web, anchor case and side is indulged when the welding of vertical web passes to Suo Li
Local stress, Fatigue Stress Amplitude and local deformation are larger.The design difficulty of this three kinds of anchor structures is that the office of web is indulged on side
Portion's deformation, dead-load stress and Fatigue Stress Amplitude are larger, especially the heavily loaded oblique pull of long-span cablestayed bridges and current train and lorry
Bridge, it is particularly problematic.
Utility model content
The purpose of this utility model be exactly in order to solve deficiency existing for above-mentioned background technique, provide a kind of power transmission it is smooth,
Simple structure, the steel box girder stayed-cable bridge cable beam anchoring structure for being easily installed and safeguarding.
The technical solution adopted in the utility model is: a kind of steel box girder stayed-cable bridge cable beam anchoring structure, including is arranged in steel
Steel anchor box and two blocks of layback plates at the top of box beam, the steel anchor box is interior to be equipped with the conduit passed through for suspension cable, and the steel anchor box is solid
It is scheduled between two blocks of layback plates, two blocks of layback plates are parallel with conduit axis, the vertical web upper end of two of the steel box-girder point
Steel box-girder back surface is not extended upward forms described two layback plates.
Further, the steel anchor box includes two pieces of main bearing plates, two pieces bearing plates, anchor plate and end-plate, described
Two pieces of main bearing plates are perpendicularly fixed between two blocks of layback plates, described two pieces time bearing plates be perpendicularly fixed at two pieces of main bearing plates it
Between, main bearing plate and time bearing plate are parallel with conduit axis, and the anchor plate is perpendicularly fixed at main bearing plate and time bearing plate
Bottom, the end-plate are perpendicularly fixed at the top of main bearing plate and time bearing plate that steel anchor box is top closed.
Further, the conduit passes through the sky that the end-plate is located at two pieces of main bearing plates and two pieces bearing plates formation
In, the conduit bottom is fixed on anchor plate.
Further, between the main bearing plate and layback plate and secondary bearing plate, the anchor plate and main bearing plate, secondary hold
Pass through welded connecting between pressing plate and conduit, between the end-plate and layback plate, main bearing plate, secondary bearing plate and conduit.
Further, the steel anchor box further includes end positioning anchor slab, and the end positioning anchor slab is located above anchor plate and anchor
Backing plate is parallel, and end positioning anchor slab includes three sections, left section and right section and is located at layback plate, two pieces of main bearing plates and secondary bearing plate shape
At two spaces in, middle section is located in the space that time bearing plates of two pieces of main bearing plates and two pieces are formed.
Further, end positioning anchor slab and layback plate, main bearing plate, pass through welded connecting between secondary bearing plate.
Further, it is provided with the through-hole passed through for conduit on the middle section, passes through welded connecting between middle section and conduit.
Further, the layback plate is structure as a whole with vertical web.
Further, described two vertical webs are respectively close to the first vertical web of steel box girder symmetrical center line and remote
The second vertical web from steel box girder symmetrical center line, the first vertical web is close to steel box girder symmetrical center line
Side is equipped with multiple bar shaped ribbed stiffeners, and the second vertical web is equipped with multiple bar shapeds in the side far from steel box girder symmetrical center line
Ribbed stiffener, lamination arranged for interval, multiple bar shaped ribbed stiffeners are arranged parallel multiple bar shaped ribbed stiffeners along the vertical direction.
Further, the both sides of the edge profile of the layback plate and vertical web junction is that round and smooth arc-shaped transition is bent
Line.
The utility model is suitable for suspension cable and indulges the anchoring of web steel box girder with prestressed tendons, by the way that vertical web is segmented,
The lower part of anchorage point takes one section of vertical web, and vertical web upper end is extended and stretches out steel box girder bridge face, and the drawing of steel anchor box anchor is made in top
It plate shape, lower part and the effect of former vertical web, realizes that vertical web is integrated with layback plate, changes traditional welding stress side
Formula solves the technical problems such as commissure stress concentration, catheter space location difficulty, construction complexity, is guaranteeing reasonable stress, is passing
Under the premise of power is reliable, meet bearing requirements, and is conducive to improve the fatigue behaviour at cable beam anchoring position.The utility model has
The advantages that structure is simple, power transmission is smooth, construction and maintenance are convenient, using effect is good, durability is strong, to cable-stayed bridge Suo Liang anchor backward
Gu technology proposes a kind of new scheme, significant to the development of cable beam anchoring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model anchor structure is connect with steel box-girder.
Fig. 2 is the cross-sectional view that the utility model anchor structure is connect with steel box-girder.
Fig. 3 is A-A sectional view in Fig. 1.
Fig. 4 is the schematic perspective view that the utility model anchor structure is connect with steel box-girder.
Fig. 5 is the schematic perspective view of the utility model anchor structure.
In figure: 1- layback plate；2- steel anchor box；3- conduit；4- steel box-girder；5- indulges web；6- back；7- steel box girder pair
Claim center line；The main bearing plate of 8-；9- bearing plate；10- anchor plate；11- end-plate；The end 12- positions anchor slab；Left section of 13-；14-
Middle section；Right section of 15-；16- through-hole；17- first indulges web；18- second indulges web；19- bar shaped ribbed stiffener；20- edge contour.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not constitute the utility model and limit.
As shown in Figs. 1-5, the utility model includes the steel anchor box 2 and two blocks of layback plates 1 that 4 top of steel box-girder is arranged in, institute
The conduit 3 for being equipped in steel anchor box 2 and passing through for suspension cable is stated, the steel anchor box 2 is fixed between two blocks of layback plates 1, and described two pieces
Layback plate 1 is parallel with 3 axis of conduit, and vertical 5 upper end of web of two of the steel box-girder 4 extends upward steel box-girder back 6 respectively
Surface forms described two layback plates 1.Layback plate 1 and back 6, vertical 5 groups of the web of steel box-girder are integral, shape after the completion of welding
At durable reliable force transfer system.
In above scheme, steel anchor box 2 includes two pieces of main bearing plates, 8, two pieces bearing plates 9, anchor plate 10 and end-plate 11,
Two pieces of main bearing plates 8 are perpendicularly fixed between two blocks of layback plates 1, and described two pieces times bearing plate 9 is perpendicularly fixed at two pieces of masters
Between bearing plate 8, main bearing plate 8 and time bearing plate 9 are parallel with 3 axis of conduit, and the anchor plate 10 is perpendicularly fixed at master and holds
Pressing plate 8 and time 9 bottom of bearing plate, the end-plate 11 are perpendicularly fixed at main bearing plate 8 and 9 top of time bearing plate for steel anchor box 2
Top closed, the conduit 3 passes through the end-plate 11 and is located at the space that two pieces of main bearing plates 8 and two pieces bearing plates 9 are formed
Interior, 3 bottom of conduit is fixed on anchor plate 6,6 center opening of anchor plate, for passing through and positioning suspension cable.
In above scheme, it is all made of the welding of T shape joint fusion-penetration between main bearing plate 8 and layback plate 1 and secondary bearing plate 9 and connects
It connects, forming " # " font bottom surface keeps stress more reasonable.Between anchor plate 10 and main bearing plate 8, secondary bearing plate 9 and conduit 3, institute
It states and passes through welded connecting between end-plate 11 and layback plate 1, main bearing plate 8, secondary bearing plate 9 and conduit 3.
In above scheme, steel anchor box 2 further includes end positioning anchor slab 12, and the end positioning anchor slab 12 is located on anchor plate 10
Parallel with anchor plate 10 at square 5cm, end positioning anchor slab 12 includes three sections, left section 13 and right section 15 and is located at 1, two piece of layback plate
In the two spaces that main bearing plate 8 and time bearing plate 9 are formed, middle section 14 is located at two pieces of main bearing plates 8 and two pieces bearing plates 9
In the space of formation.End positioning anchor slab 12 and layback plate 1, main bearing plate 8 are all made of T junction penetration between No. secondary bearing plate 9
It is welded to connect.It is provided with the through-hole 16 passed through for conduit 3 on middle section 14, passes through welded connecting between middle section 14 and conduit 3.
In above scheme, layback plate 1 is structure as a whole with vertical web 5, changes traditional welding force way, solves
The technical problems such as commissure stress concentration, catheter space location difficulty, construction complexity are guaranteeing that reasonable stress, power transmission are reliable
Under the premise of, meet bearing requirements, and be conducive to improve the fatigue behaviour at cable beam anchoring position.Layback plate 1 and vertical 5 convergence part of web
The both sides of the edge profile 20 of position is round and smooth arc-shaped transition curve, and such setting can reduce steel plate out-to-out and leftover pieces damage
Consumption, and then rolled steel dosage is reduced, to obtain good economy, while also can avoid directly bearing between layback plate and back
Pulling force, tired stress unfavorable weld seam outstanding, and the both sides of the edge of vertical web and the connecting portion of lower anchor tie plate are polished
It is even, round and smooth arc-shaped transition curve is formed, can be substantially reduced since attachment weld stress is concentrated and the changed stress in section
Jumping phenomenon realizes that stress smoothly transmits.
Two vertical webs 5 are respectively close to the first vertical web 17 of steel box girder symmetrical center line 7 and far from steel box-girder
The vertical web 18 of the second of symmetrical configuration center line 7, the first vertical web 17 is close to the one of steel box girder symmetrical center line
Side is equipped with multiple bar shaped ribbed stiffeners 19, and the second vertical web 18 is equipped with multiple in the side far from steel box girder symmetrical center line
Shape ribbed stiffener 19, lamination arranged for interval, multiple bar shaped ribbed stiffeners 19 are parallel to each other multiple bar shaped ribbed stiffeners 19 along the vertical direction
Arrangement, bar shaped ribbed stiffener 19 can reinforce the intensity of vertical web.
The utility model, which extends vertical web upper end, stretches out steel box girder bridge face, and steel anchor box anchor tie plate shape, lower part is made in top
With the vertical web effect of original, realize that vertical web is integrated with layback plate, the axis and shape of layback plate and the power transmission of drag-line
Direction is adapted, and the load on steel box-girder is transmitted to steel anchor box by two blocks of layback plates, then passes to suspension cable by steel anchor box.
By designing above, the load realized on steel box-girder is effectively and reliably transmitted on suspension cable, and inherently mitigates anchor
The stress collection that the welding that pulling plate and steel box-girder indulge web generates neutralizes Fatigue Stress Amplitude problem.Suspension cable positioning and steel box girder construction
It is more convenient.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of steel box girder stayed-cable bridge cable beam anchoring structure, it is characterised in that: including the steel anchor box being arranged at the top of steel box-girder (4)
(2) and two pieces of layback plates (1), the steel anchor box (2) are interior equipped with the conduit (3) passed through for suspension cable, steel anchor box (2) fixation
Between two pieces of layback plates (1), two blocks of layback plates (1) are parallel with conduit (3) axis, and two of the steel box-girder (4) are vertical
Web (5) upper end extends upward steel box-girder back (6) surface respectively and forms described two layback plates (1).
2. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 1, it is characterised in that: steel anchor box (2) packet
Include two pieces of main bearing plates (8), two pieces bearing plates (9), anchor plate (10) and end-plate (11), two pieces of main bearing plates (8)
It is perpendicularly fixed between two pieces of layback plates (1), described two pieces times bearing plate (9) is perpendicularly fixed between two pieces of main bearing plates (8),
Main bearing plate (8) and time bearing plate (9) are parallel with conduit (3) axis, and the anchor plate (10) is perpendicularly fixed at main bearing plate
(8) it is perpendicularly fixed at the top of main bearing plate (8) and time bearing plate (9) with time bearing plate (9) bottom, the end-plate (11) by steel
The closing of anchor box top.
3. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 2, it is characterised in that: the conduit (3) passes through
In the space that the end-plate (11) is located at two pieces of main bearing plates (8) and two pieces bearing plates (9) are formed, conduit (3) bottom
Portion is fixed on anchor plate (10).
4. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 2, it is characterised in that: the main bearing plate (8)
Between layback plate (1) and time bearing plate (9), the anchor plate (10) and main bearing plate (8), secondary bearing plate (9) and conduit (3)
Between, between the end-plate (11) and layback plate (1), main bearing plate (8), secondary bearing plate (9) and conduit (3) pass through welding
Connection.
5. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 1, it is characterised in that: the steel anchor box (2) is also
Anchor slab (12) are positioned including end, end positioning anchor slab (12) is located at parallel with anchor plate above anchor plate (10), end positioning anchor
Plate (12) includes three sections, and left section (13) and right section (15) are located at layback plate (1), two pieces of main bearing plates (8) and time bearing plate
(9) in the two spaces formed, in the space that middle section (14) are located at two pieces of main bearing plates (8) and two pieces bearing plates (9) are formed.
6. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 5, it is characterised in that: the end positions anchor slab
(12) and layback plate (1), main bearing plate (8), secondary bearing plate pass through welded connecting between (9).
7. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 5, it is characterised in that: opened on the middle section (14)
There is the through-hole (16) passed through for conduit, passes through welded connecting between middle section (14) and conduit (3).
8. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 1, it is characterised in that: the layback plate (1) with
Vertical web (5) are structure as a whole.
9. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 1, it is characterised in that: described two vertical webs
It (5) is respectively close to the first vertical web (17) of steel box girder symmetrical center line and far from steel box girder symmetrical center line
Second vertical web (18), the first vertical web (17) are equipped with multiple bar shapeds in the side close to steel box girder symmetrical center line
Ribbed stiffener (19), the second vertical web (18) are equipped with multiple bar shaped ribbed stiffeners in the side far from steel box girder symmetrical center line
(19), lamination arranged for interval, multiple bar shaped ribbed stiffeners (19) are arranged parallel multiple bar shaped ribbed stiffeners (19) along the vertical direction.
10. steel box girder stayed-cable bridge cable beam anchoring structure according to claim 1, it is characterised in that: the layback plate (1) with
The both sides of the edge profile (20) of vertical web (5) junction is round and smooth arc-shaped transition curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821211142.2U CN208933827U (en) | 2018-07-27 | 2018-07-27 | A kind of steel box girder stayed-cable bridge cable beam anchoring structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821211142.2U CN208933827U (en) | 2018-07-27 | 2018-07-27 | A kind of steel box girder stayed-cable bridge cable beam anchoring structure |
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| CN208933827U true CN208933827U (en) | 2019-06-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331673A (en) * | 2019-08-19 | 2019-10-15 | 中冶建工集团有限公司 | A kind of construction method of the segmented installation of bridge steel anchor box |
| CN111761262A (en) * | 2020-06-16 | 2020-10-13 | 武汉一冶钢结构有限责任公司 | Manufacturing method of main cable anchor box |
| CN113218687A (en) * | 2021-04-29 | 2021-08-06 | 西南交通大学 | Cable-stayed bridge cable-beam anchoring structure reduced scale test model loading device and test method thereof |
-
2018
- 2018-07-27 CN CN201821211142.2U patent/CN208933827U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331673A (en) * | 2019-08-19 | 2019-10-15 | 中冶建工集团有限公司 | A kind of construction method of the segmented installation of bridge steel anchor box |
| CN111761262A (en) * | 2020-06-16 | 2020-10-13 | 武汉一冶钢结构有限责任公司 | Manufacturing method of main cable anchor box |
| CN111761262B (en) * | 2020-06-16 | 2022-03-18 | 武汉一冶钢结构有限责任公司 | Manufacturing method of main cable anchor box |
| CN113218687A (en) * | 2021-04-29 | 2021-08-06 | 西南交通大学 | Cable-stayed bridge cable-beam anchoring structure reduced scale test model loading device and test method thereof |
| CN113218687B (en) * | 2021-04-29 | 2023-01-20 | 四川农业大学 | Cable-stayed bridge cable-beam anchoring structure reduced scale test model loading device and test method thereof |
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