CN206562570U - A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring - Google Patents
A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring Download PDFInfo
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- CN206562570U CN206562570U CN201621338491.1U CN201621338491U CN206562570U CN 206562570 U CN206562570 U CN 206562570U CN 201621338491 U CN201621338491 U CN 201621338491U CN 206562570 U CN206562570 U CN 206562570U
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Abstract
The utility model provides the steel anchor box anchor that a kind of cable-stayed bridge radial pattern drag-line concentrates anchoring, including being fixed on the pre-embedded steel slab of concrete cable top of tower and the multigroup steel anchor room being fixedly connected being vertically arranged on pre-embedded steel slab, the steel anchor room is by two blocks of coxostermums, some connecting plates, diaphragm plate, local stiffener, and several steel anchor boxes composition；The steel anchor room is welded into prolate shape body structure by two blocks of coxostermums and some spaced connecting plates, the laying that diaphragm plate is from top to bottom spaced is welded in the middle part of steel anchor room, each steel anchor box is from top to bottom laid in the two ends of steel anchor room according to design gradient, it is welded as a whole with the coxostermum of steel anchor room both sides, two blocks of adjoint coxostermums of each group steel anchor room are connected by high-strength bolt arrangement, and pass through the pre-buried vertical prestressing cable wire of concrete pylon, the multigroup steel anchor room for being vertically arranged connection is fixed on pre-embedded steel slab through bottom steel anchor room flanging, the steel anchor box anchor structure formed a whole.
Description
Technical field
The utility model belongs to bridge construction technical field, is related to a kind of cable-stayed bridge steel anchor box anchor structure, and in particular to
A kind of drag-line concentrates the cable-stayed bridge steel anchor box anchor that anchoring, concrete pylon are separated with steel construction anchorage zone.
Background technology
The anchor structure of Sarasota is that cable-stayed bridge cable power is transferred to king-post and ensures the important feature of local stress safety, right
For large span stayed-cable bridge, mainly there are three kinds of anchorage styles：Tooth block and tower wall prestress anchoraging, steel anchor box anchoring and steel anchor
Beam is anchored.
Tooth block and tower wall prestress anchoraging need " U " type or " well " font prestressing tendon to drawing, this anchoring process
Have the disadvantage that construction is cumbersome, steel cable is difficult to be accurately positioned, loss of prestress is big, anchorage notch anchoring complex process, construction quality
It is difficult to ensure that.
The characteristics of steel anchor beam anchor structure, is that Suo Li horizontal components are almost undertaken by steel anchor beam entirely, and the drawing that tower wall is produced should
Power is smaller.This anchor structure horizontal component huge when occurring disconnected rope is born by weak concrete side walls, there is larger peace
Full hidden danger.In addition, the vertical force component between steel anchor beam and Concrete-filled steel tube passes through bracket realization, local answer may be caused
Power is excessively concentrated.
The Anchorage Plan of steel anchor box avoids the complicated technology of tooth plate anchoring, and the method that steel anchor box is prefabricated in the factory ensure that
Drag-line and anchor tube are accurately positioned, but because the Suo Li horizontal components of steel anchor box anchor structure arranged under normal circumstances are by tower wall
With steel anchor box shared, the horizontal component that tower wall is born may cause concrete cracking, the steel pull resistance of steel anchor box
Can it not be not fully exerted, and the presence of steel anchor box causes prestressing force to be difficult to apply, and there is steel-concrete connection knot
The problem of structure is excessively complicated.
The content of the invention
The purpose of this utility model is to provide a kind of drag-line and concentrates anchoring, can independently bear the steel anchor box of Suo Li horizontal components
Anchor, the device can give full play to the tensile strength of steel, it is to avoid between Concrete-filled steel tube and steel anchor box structure
Horizontal force transmit, and the anchor there is easy construction, it is handsome in appearance the characteristics of.
The utility model is the technical scheme adopted is that a kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchoring of anchoring
Device, including be fixed on the pre-embedded steel slab of concrete cable top of tower and multigroup steel anchor for being fixedly connected is vertically arranged on pre-embedded steel slab
Room, the steel anchor room is by two blocks of coxostermums, some connecting plates, diaphragm plate, local stiffener, and several steel anchor boxes composition；
The steel anchor room is welded into prolate shape body structure by two blocks of coxostermums and some spaced connecting plates, and diaphragm plate is by up to
The laying at lower interval is welded in the middle part of steel anchor room, and each steel anchor box is from top to bottom laid in the two ends of steel anchor room according to design gradient, with
The coxostermum of steel anchor room both sides is welded as a whole, and two blocks of adjoint coxostermums of each group steel anchor room are arranged by high-strength bolt and connected
Fix and by the pre-buried prestressed cable of concrete pylon, multigroup steel anchor room of connection will be vertically arranged through bottom steel anchor room
Flanging is fixed on pre-embedded steel slab, the steel anchor box anchor structure formed a whole.
Cable-stayed bridge radial pattern drag-line described in the utility model concentrates the steel anchor box anchor of anchoring, and its feature also exists
In,
Described steel anchor box is made up of bearing plate, anchor plate, power transmission web, and stiffener；The steel anchor box bearing plate
One side fixed as one with anchor plate, and the through hole for installing steel cable is provided with the middle part of the plate face；Two pieces of symmetrically arranged power transmissions
Web vertical welding is in the another side of bearing plate；Stiffener is also vertically welded with inside and outside bearing plate plate face, two power transmission webs.
The specification size of described each plate bears the different and different of Suo Li sizes, the bearing plate and biography with steel anchor box
The two side ends of power web and flank plate weld.
The laying being from top to bottom spaced is welded in the diaphragm plate in the middle part of steel anchor room, and its bottom surface is provided with stiffener in length and breadth.
Around the wide open mouth of the steel anchor room bottom coxostermum people, the local stiffener of U-shaped shape is welded with.
The utility model cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring, compared with prior art, tool
There is following beneficial effect：
1. the utility model concentrates the steel anchor box structure of anchoring to avoid the construction of cable-stayed bridge multi-segmental, be segmented the cumbersome of anchoring
And the problem of Cracking that steel-concrete joint face is also easy to produce.
2. the horizontal component out-of-balance force of each drag-line of the utility model cable-stayed bridge is by the bending resistance energy of multigroup steel anchor room coxostermum
Power is undertaken, and vertical force component is uniformly transferred in concrete by the steel plateelement of each bearing plate, connecting plate, diaphragm plate, local stiffener
Sarasota；The characteristics of steel tensile property is superior, concrete is good at resistance to compression is given full play to, it is to avoid concrete pylon bears level
Ftractureed caused by component, and because structure integral rigidity is larger, stress level is relatively low, with good working order.
3. the utility model uses the combining structure of multigroup steel anchor room, therefore difficulty of construction is smaller, and drag-line is easily accurately fixed
Position, better economy.
Brief description of the drawings
Fig. 1 and Fig. 2 are the steel anchor box anchor structural representations that the utility model cable-stayed bridge radial pattern drag-line concentrates anchoring
Figure；
Fig. 3 and Fig. 4 are the utility model steel anchor box structural representations；
Fig. 5 and Fig. 6 are the utility model steel anchor box knot diaphragm structure schematic diagrames.
In figure, 1. concrete pylons, 2. pre-embedded steel slabs, 3. steel anchor rooms, 3 ' steel anchor room flangings, 4. coxostermums, 5. connections
Plate, 6. diaphragm plates, 7. high-strength bolts, 8. steel anchor boxes, 9. prestressed cables, 10. steel cables, 11. bearing plates, 12. anchor pads
Plate, 13. power transmission webs, 14. stiffeners, 15. through holes, 16. stiffeners in length and breadth, the wide open mouth of 17. people, 18. local stiffeners.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring, as shown in Fig. 1 and Fig. 2, including fixation
In the pre-embedded steel slab 2 at the top of concrete pylon 1 with multigroup steel anchor room 3 for being fixedly connected, steel anchor room are vertically arranged on pre-embedded steel slab 2
3 by two blocks of coxostermums 4, some connecting plates 5, diaphragm plate 6, and several steel anchor boxes 8 are constituted；Steel anchor room 3 is by two blocks of coxostermums 4
Prolate shape body structure is welded into some spaced connecting plates 5, the laying that diaphragm plate 6 is from top to bottom spaced is welded in steel
The middle part of anchor room 3, each steel anchor box 8 is from top to bottom laid in the two ends of steel anchor room 3 according to the mounting design gradient of steel cable 10, with steel anchor
The coxostermum 4 of the both sides of room 3 is welded as a whole, and two blocks of adjoint coxostermums 4 of each group steel anchor room 3 are arranged by high-strength bolt 7 to be connected
Connect and fix and by the pre-buried prestressed cable 9 of concrete pylon 1, multigroup steel anchor room 3 of connection will be vertically arranged through bottom steel
Anchor room flanging 3 ' is fixed on pre-embedded steel slab 2, the steel anchor box anchor structure formed a whole.
Around the wide open mouth 17 of people of 3 bottom coxostermum of the utility model steel steel anchor room 4, the local stiffener of U type shapes is welded with
18。
As shown in Figure 3 and Figure 4, steel anchor box 8 of the present utility model is by bearing plate 11, anchor plate 12, power transmission web 13, with
And stiffener 14 is constituted；The one side of the bearing plate 11 of steel anchor box 8 fixes as one with anchor plate 12, and is provided with installation in the middle part of plate face
The through hole 15 of steel cable 10；Two pieces of symmetrically arranged vertical weldings of power transmission web 13 are in the another side of bearing plate 11；In bearing plate
11 plate faces, the inside and outside of two power transmission webs 13 are also vertically welded with stiffener 14.
The specification size of each plate of the present utility model bears the different and different of Suo Li sizes, bearing plate with steel anchor box 8
11 and the two side ends of power transmission web 13 welded with coxostermum 4.
The laying that the utility model is from top to bottom spaced is welded in the diaphragm plate 6 at the middle part of steel anchor room 3, such as Fig. 5 and Fig. 6 institutes
Show, its bottom surface is provided with stiffener 16 in length and breadth.
The utility model cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring, because steel anchor room 3 has thickness
The characteristics of plate weld amount is big, melt-through weld is more, the accuracy of manufacture requires high is, it is necessary to according to blanking and processing, part making, section
Making processing are carried out with making, four operation stages of segment pre-assembled.
In order to ensure steel anchor room 3, the overall dimensional accuracy of steel anchor box 8 and the reduction weldering of the utility model steel anchor box anchor
Force deformation is scooped out, each parts uses accurate cutting blanking, blank size compensation welding, correction amount of contraction and machine add cutting
Amount；The main Impact direction of part is consistent with plate rolling direction, and ensures that all parts, without splicing, reduce Welder as far as possible
Measure.
The utility model cable-stayed bridge radial pattern drag-line concentrate anchoring steel anchor box anchor, because structure integral rigidity compared with
Greatly, stress level is relatively low, with good working order.By fixed on the pre-embedded steel slab 2 at the top of concrete pylon 1
The connection cable-stayed bridge of steel anchor box 8 steel cable 10 from top to bottom laid in the multigroup steel anchor room 3 being vertically arranged installed, makes oblique pull
The anchoring that bridge is concentrated in the steel cable 10 of radial pattern, the up to lower steel anchor box 8 laid is held jointly completely in each steel anchor room 3
By the pulling force of cable-stayed bridge steel cable 10, the horizontal component for causing cable-stayed bridge tower wall concrete to cause cracking without producing makes
The steel tensile property of all parts in each steel anchor room 3 is fully played.Existing cable-stayed bridge radial pattern is efficiently solved to draw
Rope anchor, which exists, to be caused the problem of prestressing force is difficult to application, and cable-stayed bridge anchor steel-concrete connecting structure
The problem of joint face easily produces cracking.
The utility model uses the combining structure of multigroup steel anchor room, because the steel cable 10 installed on steel anchor box 8 can lead to
The through hole 15 being provided with the middle part of the plate face of bearing plate 11 is crossed to be accurately positioned, hence in so that cable-stayed bridge anchor difficulty of construction is smaller, work
The economy of journey is also greatly improved.
Above-mentioned embodiment is an example of the present utility model, is not intended to limit implementation and the right of utility model
Scope, equivalence changes and modification that all contents according to described in present utility model application scope of patent protection are made, all should include
In present utility model application the scope of the claims.
Claims (5)
1. a kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring, including is fixed on concrete pylon (1) top
The pre-embedded steel slab (2) in portion with multigroup steel anchor room (3) for being fixedly connected is vertically arranged on pre-embedded steel slab (2), it is characterised in that it is described
Steel anchor room (3) is by two pieces of coxostermums (4), some connecting plates (5), diaphragm plate (6), and several steel anchor boxes (8) composition；It is described
Steel anchor room (3) is welded into prolate shape body structure, diaphragm plate by two pieces of coxostermums (4) and some spaced connecting plates (5)
(6) laying being from top to bottom spaced is welded in the middle part of steel anchor room (3), and each steel anchor box (8) is from top to bottom installed according to steel cable (10)
Design gradient is laid in the two ends of steel anchor room (3), is welded as a whole with the coxostermum (4) of steel anchor room (3) both sides；Each group steel anchor room
(3) two pieces of adjoint coxostermums (4) are connected and pre-buried by concrete pylon (1) by high-strength bolt (7) arrangement
Prestressed cable (9), will be vertically arranged multigroup steel anchor room (3) of connection and is fixed on pre-embedded steel slab through bottom steel anchor room flanging (3 ')
(2) on, the steel anchor box anchor structure formed a whole.
2. cable-stayed bridge radial pattern drag-line according to claim 1 concentrates the steel anchor box anchor of anchoring, it is characterised in that
Described steel anchor box (8) is made up of bearing plate (11), anchor plate (12), power transmission web (13), and stiffener (14)；The steel
The one side of anchor case (8) bearing plate (11) fixes as one with anchor plate (12), and is provided with installation steel cable (10) in plate face middle part
Through hole (15)；Two pieces of symmetrically arranged power transmission web (13) vertical weldings are in the another side of bearing plate (11)；In bearing plate
(11) plate face, the inside and outside of two power transmission webs (13) are also vertically welded with stiffener (14).
3. cable-stayed bridge radial pattern drag-line according to claim 2 concentrates the steel anchor box anchor of anchoring, it is characterised in that
The specification size of described each plate bears the different and different of Suo Li sizes, the bearing plate (11) and biography with steel anchor box (8)
The two side ends of power web (13) are welded with coxostermum (4).
4. cable-stayed bridge radial pattern drag-line according to claim 1 concentrates the steel anchor box anchor of anchoring, it is characterised in that
The laying being from top to bottom spaced is welded in the diaphragm plate (6) in the middle part of steel anchor room (3), and its bottom surface is provided with stiffener in length and breadth
(16)。
5. cable-stayed bridge radial pattern drag-line according to claim 1 concentrates the steel anchor box anchor of anchoring, it is characterised in that
Around steel anchor room (3) the bottom wide open mouth of coxostermum (4) people (17), the local stiffener (18) of U-shaped shape is welded with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338491.1U CN206562570U (en) | 2016-12-07 | 2016-12-07 | A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621338491.1U CN206562570U (en) | 2016-12-07 | 2016-12-07 | A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring |
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| CN206562570U true CN206562570U (en) | 2017-10-17 |
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|---|---|---|---|
| CN201621338491.1U Active CN206562570U (en) | 2016-12-07 | 2016-12-07 | A kind of cable-stayed bridge radial pattern drag-line concentrates the steel anchor box anchor of anchoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740345A (en) * | 2017-10-27 | 2018-02-27 | 广东省交通规划设计研究院股份有限公司 | A kind of monoblock type welds steel anchor box and its mounting process entirely |
| CN113585069A (en) * | 2021-08-23 | 2021-11-02 | 浙江数智交院科技股份有限公司 | Cable-stayed bridge cable tower end anchoring device and construction method |
-
2016
- 2016-12-07 CN CN201621338491.1U patent/CN206562570U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740345A (en) * | 2017-10-27 | 2018-02-27 | 广东省交通规划设计研究院股份有限公司 | A kind of monoblock type welds steel anchor box and its mounting process entirely |
| CN113585069A (en) * | 2021-08-23 | 2021-11-02 | 浙江数智交院科技股份有限公司 | Cable-stayed bridge cable tower end anchoring device and construction method |
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