CN204738229U - Two bearing plate cable -stay bridge cable wire tower steel anchor case anchor structures - Google Patents

Two bearing plate cable -stay bridge cable wire tower steel anchor case anchor structures Download PDF

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Publication number
CN204738229U
CN204738229U CN201520294017.2U CN201520294017U CN204738229U CN 204738229 U CN204738229 U CN 204738229U CN 201520294017 U CN201520294017 U CN 201520294017U CN 204738229 U CN204738229 U CN 204738229U
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China
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anchor
plate
bearing plate
vertical
stiffener
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CN201520294017.2U
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周长青
沈项斌
聂宁波
郑文飞
焦燏烽
高笑娟
梁斌
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First Engineering Co Ltd of China Railway 15th Bureau Group Co Ltd
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First Engineering Co Ltd of China Railway 15th Bureau Group Co Ltd
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Abstract

The utility model provides a two bearing plate cable -stay bridge cable wire tower steel anchor case anchor structures, include the vertical floor of constitution steel anchor case both sides board and the bearing plate and anchor backing plate of steel anchor incasement portion, the bearing plate welding is indulged between the floor two, and with cable wire tower web vertical welding, going up through polishing a stressed joint between side and the anchor backing plate of welding on cable wire tower web of bearing plate, and the bearing plate all is equipped with the round hole that supplies the suspension cable to pass with the center of anchor backing plate, steel sheet and reinforcing plate under the anchor that is used for constituting two bearing plates are all welded to the both ends of bearing plate downside, the both sides face of steel sheet welds with the inboard of reinforcing plate and vertical floor respectively under the anchor, two bearing plates constitute support additional strengthening with the bearing plate together. The utility model discloses a bearing plate transmits suo li with the support additional strengthening that two bearing plates formed mouthful font jointly together jointly to can strengthen the rigidity and stability of cable wire tower web, reduce its deformation volume, improve welding seam mechanical properties, biography power route is clear and definite, the atress is reasonable, the reliability is high.

Description

A kind of double base plate cables tower steel anchor box anchor structure
Technical field
The utility model belongs to bridge engineering field, is specifically related to a kind of anchor structure of double base plate cables tower steel anchor box.
Background technology
Cables tower steel anchor box structure is one and the locally concentrated forces of suspension cable is distributed to cable wire tower total cross-section, and safely, be delivered evenly to the important force structure of below anchorage zone.
The main Force transmission parts of current steel anchor box structure is anchor box plate, top board and bearing plate, three form structural system based on by cutting, by curved be auxiliary cut-curved coaction mode, realize the load transmission between suspension cable and girder or cable wire tower, anchor tube adopts plug in construction, and anchor case is welded with cable wire tower web by anchor web.The structure of this anchor structure and force path are all comparatively complicated, and transmit the outstanding problems such as load is large, stress raisers, as unreasonable in designed, and likely occur local buckling, strength failure or fatigue failure, affect the safety of bridge.And, now widely used steel deck cable stayed bridge Sarasota web and steel anchor box web are melt-through weld, and steel anchor box self melt-through weld is many and concentrated in the mill, be out of shape larger after causing welding box body, simultaneously, the structure of tradition steel anchor box is tight, operating space is little, for assembling, welding and unfavorable, and if in order to increase the space in steel anchor box, the structure reduced in steel anchor box then easily affects the anchorage effect of steel anchor box to suspension cable, therefore, how to simplify anchor structure complicated in steel anchor box and ensure, after its structure simplifies, still there is the difficult point that good anchorage effect is the research of current steel anchor box anchor structure.In addition, steel anchor box used does not at present consider the rigidity contrast of anchor casing and coupled cable wire tower web yet when designing, and this ratio of rigidity has material impact for the force-transmission mechanism of the box anchor structure of anchor.
For the shortcoming of above-mentioned steel anchor box anchor structure, the present invention is in conjunction with a kind of profile iron Sarasota, double base board-like cables tower steel anchor box anchor structure is proposed, by the bearing plate in steel anchor box welds double base plate, and in conjunction with double base plate optimize and revise form steel anchor box various plates between position and annexation, to make between cable wire tower and steel anchor box and in steel anchor box, welding residual stress reduces, simple structure, load path are clear and definite, reasonable stress, reliability are high.
Utility model content
The purpose of this utility model is to provide a kind of double base plate cables tower steel anchor box anchor structure, by arranging double base plate on bearing plate, itself and bearing plate is made jointly to form the support reinforcing structure of square shape, and optimize and revise the position relationship between the various plates forming steel anchor box in conjunction with double base plate, improve weld properties, welding residual stress between cable wire tower and steel anchor box and in steel anchor box is reduced, and load path is clear and definite, reasonable stress, reliability are high.
In order to achieve the above object, solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of double base plate cables tower steel anchor box anchor structure, comprise the vertical floor forming steel anchor box biside plate and the bearing plate and the anchor plate that are arranged on steel anchor box inside, wherein, vertical floor is symmetrical relative to suspension cable, and along the Impact direction longitudinal measure of suspension cable on cable wire tower web, described bearing plate is welded between two vertical floors, and with cable wire tower web vertical welding, the upper side of bearing plate is connected with being held out against by polishing between the anchor plate be welded on cable wire tower web, and the center of bearing plate and anchor plate is equipped with the circular hole passed for suspension cable, suspension cable is anchored at anchor plate by ground tackle after circular hole passes, the two ends of bearing plate downside are all welded with anchor lower steel plate for forming double base plate and stiffener, wherein the two sides of anchor lower steel plate are welded with the inner side of stiffener and vertical floor respectively, described double base plate forms support reinforcing structure together with bearing plate, the outside of described vertical floor is provided with vertical floor stiffener.
Further, described vertical floor stiffener comprises vertical stiffener in right-angled intersection and horizontal stiffener, and is welded on the outside of vertical floor.
Further, above by welding manner connect structure between weld seam be deep groove fillet weld.
Compared with prior art, the utility model has following beneficial effect:
First, the utility model simple structure, load path are smooth, bearing capacity reaches designing requirement, there is larger safety stock, the anchor lower steel plate welded by bearing plate side and stiffener form double base plate, and form support reinforcing structure by double base plate and bearing plate, cooperatively transmit Suo Li, simultaneously because cable wire tower web plays a crucial role to transmission Suo Li, therefore the support reinforcing structure be jointly made up of double base plate and bearing plate can strengthen again rigidity and the stability of cable wire tower web, reduces its deformation quantity;
Second, vertical floor stiffener in the utility model is welded on the outside of vertical floor, because vertical floor constitutes the side plate of steel anchor box, so the stiffener of vertical floor is also in the outside of steel anchor box, overcome because in traditional steel anchor box, stiffener is intensive, cause operating space narrow and small, the problem of welding difficulty;
3rd, in the utility model, stiffener is by indulging stiffener and horizontal stiffener is that right-angled intersection is welded on vertical stiffener, structural configuration is orderly, and the weld seam in the utility model is two groove angle weld seams, weld seam disperses, and stress is concentrated little, and welding deformation easily controls with contraction, weldquality is controlled, and assembly welding difficulty is little;
4th, the relative angle of steel anchor box and cable wire tower web determines the force direction of oblique suspension cable, and due to the utility model simple structure, therefore assembly precision easily controls.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional drawing in Fig. 1.
Fig. 3 is the B-B sectional drawing in Fig. 1.
Mark in figure: 1, vertical floor, 2, vertical stiffener, 3, horizontal stiffener, 4, bearing plate, 5, anchor plate, 6, stiffener, 7, anchor lower steel plate, 8, cable wire tower web, 9, suspension cable.
Detailed description of the invention
Below in conjunction with accompanying drawing, by detailed description of the invention, the utility model is further described.
As shown in the figure, a kind of double base plate cables tower steel anchor box anchor structure, by vertical floor 1, vertical floor stiffener, bearing plate 4, anchor plate 5, stiffener 6, anchor lower steel plate 7 is formed, wherein stiffener 6 and anchor lower steel plate 7 form double base plate jointly, vertical floor stiffener comprises vertical stiffener 2 and horizontal stiffener 3, the concrete mounting method of this anchor structure is as follows: get two pieces of vertical floors 1, its Impact direction along suspension cable 9 is passed through deep groove fillet weld longitudinal measure on cable wire tower web 8, and relative to suspension cable 9 symmetry to form the biside plate of steel anchor box, the outside of vertical floor 1 welds vertical stiffener 2 perpendicular to vertical floor 1 and horizontal stiffener 3 respectively, vertical stiffener 2 and horizontal stiffener 3 are in right-angled intersection, between two pieces of vertical floors 1, bearing plate 4 is set, and bearing plate 4 is welded on cable wire tower web 8, the simultaneously bearing plate 4 two ends medial surface vertical welding of vertical floor 1 with two respectively, at the upper side of bearing plate 4, anchor plate 5 is set, anchor plate 5 is while bottom welding is on cable wire tower web 8, held out against by polishing between one side with bearing plate 4 and be connected, and bearing plate 4 and anchor plate 5 center are equipped with the circular hole passed for suspension cable 9, suspension cable 9 is anchored on anchor plate 5 by ground tackle, equal weld anchor lower steel plate 7 and stiffener 6 at the two ends of bearing plate 4 downside, and the equal vertical welding in one end of anchor lower steel plate 7 and stiffener 6 is on bearing plate 4, wherein anchor lower steel plate 7 is between stiffener 6 and vertical floor 1, and the two sides of anchor lower steel plate 7 are welded with vertical floor 1 medial surface with stiffener 6 respectively, anchor lower steel plate 7 and stiffener 6 form double base plate, and support reinforcing structure is formed together with bearing plate 4, strengthen again the rigidity of cable wire tower web 8 simultaneously.
The utility model assembles steel anchor box on special assembly jig, guarantees the position relationship of each component, carries out afterwards welding and welding inspection.
In the utility model, two pieces of vertical floors 1 pass through deep groove fillet weld seam on cable wire tower web 8, and by weld seam transmission internal force, vertical floor stiffener is positioned at outside vertical floor 1, namely not at box house, facilitates welding.Its Suo Li transfer route is: tiltedly Stay Cable Anchors-anchor plate-bearing plate-anchor lower steel plate and stiffener-cable wire tower web, and load path is clear and definite, reasonable stress, reliability are high.

Claims (2)

1. a double base plate cables tower steel anchor box anchor structure, it is characterized in that: comprise the vertical floor (1) of formation steel anchor box biside plate and be arranged on the bearing plate (4) of steel anchor box inside and anchor plate (5), wherein, vertical floor (1) is symmetrical relative to suspension cable (9), and along the Impact direction longitudinal measure of suspension cable (9) on cable wire tower web (8), described bearing plate (4) is vertically welded on the cable wire tower web (8) between two vertical floors (1), and the two ends of bearing plate (4) respectively with the medial surface vertical welding of two vertical floors (1), the side of bearing plate (4) is connected with being held out against by polishing between the anchor plate (5) be welded on cable wire tower web (8), and bearing plate (4) is equipped with the center of anchor plate (5) circular hole passed for suspension cable (9), suspension cable (9) is anchored at anchor plate (5) by ground tackle after circular hole passes, the two ends of bearing plate (4) opposite side are all welded with stiffener (6) for forming double base plate and anchor lower steel plate (7), wherein the two sides of anchor lower steel plate (7) are welded with the side of stiffener (6) and the medial surface of vertical floor (1) respectively, described double base plate forms support reinforcing structure together with bearing plate (4), described vertical floor (1) arranged outside indulges floor stiffener.
2. a kind of double base plate cables tower steel anchor box anchor structure according to claim 1, it is characterized in that: described vertical floor stiffener comprises vertical stiffener (2) in right-angled intersection and horizontal stiffener (3), and is welded on the outside of vertical floor (1).
CN201520294017.2U 2015-05-08 2015-05-08 Two bearing plate cable -stay bridge cable wire tower steel anchor case anchor structures Active CN204738229U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520294017.2U CN204738229U (en) 2015-05-08 2015-05-08 Two bearing plate cable -stay bridge cable wire tower steel anchor case anchor structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520294017.2U CN204738229U (en) 2015-05-08 2015-05-08 Two bearing plate cable -stay bridge cable wire tower steel anchor case anchor structures

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CN204738229U true CN204738229U (en) 2015-11-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369736A (en) * 2015-12-15 2016-03-02 安徽省交通控股集团有限公司 Outer anchoring structure of cable-stayed bridge tower body
CN109596329A (en) * 2018-12-11 2019-04-09 佛山科学技术学院 A kind of Anchorage Zone of Cable-stayed Bridge Pylon stress distribution test self-balanced loading device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369736A (en) * 2015-12-15 2016-03-02 安徽省交通控股集团有限公司 Outer anchoring structure of cable-stayed bridge tower body
CN105369736B (en) * 2015-12-15 2017-05-10 安徽省交通控股集团有限公司 Outer anchoring structure of cable-stayed bridge tower body
CN109596329A (en) * 2018-12-11 2019-04-09 佛山科学技术学院 A kind of Anchorage Zone of Cable-stayed Bridge Pylon stress distribution test self-balanced loading device

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