CN206204784U - Steel anchor beam - Google Patents

Steel anchor beam Download PDF

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Publication number
CN206204784U
CN206204784U CN201621038761.7U CN201621038761U CN206204784U CN 206204784 U CN206204784 U CN 206204784U CN 201621038761 U CN201621038761 U CN 201621038761U CN 206204784 U CN206204784 U CN 206204784U
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China
Prior art keywords
suspension cable
anchorage head
cable anchorage
anchor
web
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Application number
CN201621038761.7U
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Chinese (zh)
Inventor
荣学亮
赵品
孙峰伟
李胜伟
张彦玲
李运生
栾焕强
张红莉
姚新国
吴鸿胜
杨毅龙
郜军才
周焕锋
尤华军
姜光辉
雷新强
孙现新
聂锟
翟银伟
杨怀宇
刘执芳
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5TH CONSTRUCTION Co Ltd OF CHINA 15TH CORPERATION
China Railway 15th Bureau Group Co Ltd
Fifth Engineering Co Ltd of China Railway 15th Bureau Group Co Ltd
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5TH CONSTRUCTION Co Ltd OF CHINA 15TH CORPERATION
China Railway 15th Bureau Group Co Ltd
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Application filed by 5TH CONSTRUCTION Co Ltd OF CHINA 15TH CORPERATION, China Railway 15th Bureau Group Co Ltd filed Critical 5TH CONSTRUCTION Co Ltd OF CHINA 15TH CORPERATION
Priority to CN201621038761.7U priority Critical patent/CN206204784U/en
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Abstract

The utility model is related to a kind of steel anchor beam, beam (2) and suspension cable anchorage head (1) are anchored including box, the front end and end of box anchoring beam (2) both sides are respectively equipped with suspension cable anchorage head (1), suspension cable anchorage head (1) is welded on box and anchors on beam (2), it is characterised in that:The inner side of the suspension cable anchorage head (1) is provided with suspension cable anchorage head connecting hole (301), the both sides of anchoring beam (2) are provided with anchoring beam connecting hole (302), and suspension cable anchorage head connecting hole (301) and anchoring beam connecting hole (302) are on the same line, fining twisted steel (3) is through suspension cable anchorage head connecting hole (301) and anchors beam connecting hole (302).The utility model have simple installation, stress clearly, low cost, hoisting weight it is light, constitutionally stable advantage, it can be not only used for parallel rope face cable-stayed bridge, it can also be used to Spatial Cable face cable-stayed bridge, using more extensive.

Description

Steel anchor beam
Technical field
The utility model is related to a kind of steel anchor beam, the firm anchor beam of the connection suspension cable of particularly a kind of cable-stayed bridge.
Background technology
Girder or arch rib material are the bridge of steel, are commonly referred to as steel bridge.The other materials such as bridge pier, bridge tower, floorings then may be used It is steel, concrete etc..Steel structure bridge mainly includes highway steel structure bridge and the major class of railway steel structure bridge two, currently, In China as the infrastructure given priority to, development is very rapid, also promotes the development of science of bridge building for transport development.Especially It is that in recent years, steel structure bridge is widely used by engineering circles due to having many advantages.In country《Mid-long term railway network plan》 In clearly propose, to the year two thousand twenty, china railway operation mileage is up to 100,000 km, and main busy trunk lines are realized separating lines for passenger and freight, advised Draw and build the km of new line about 1.6 ten thousand, planning is that the km of two wires 1.3 ten thousand is built in wired increasing, for the construction of railroad bridge provides great machine Meet, also will bring bigger development for China railways bridge steel plate.In bridge steel development from now on, science of bridge building development is complied with The good high performance bridge steel of the high intensity of needs, solderability, anti-breaking property, fatigability, weatherability will be the master of bridge steel development Want direction.Cable-stayed bridge is to the performance more and more higher of bridge steel, and current steel anchor beam is more and more in the application of cable-stayed bridge, so steel anchor Material and structure design, the mounting process of beam are increasingly paid close attention to by engineering circles.
The anchor-hold section of Sarasota is, by a concentration of local stress for suspension cable, safely, to be delivered evenly to king-post Important stress structure, for long-span cablestayed bridges, mainly there is 3 kinds of anchorage styles:Ring orientation prestress anchoring, steel anchor box anchoring and steel Anchoring beam anchoring.
Wherein, prestress anchoraging mode is used small across footpath cable-stayed bridge more, but its loss of prestress is big.Long span stayed-cable bridge rope Tower is higher, and work high above the ground influence construction quality, concrete is easy to crack, and the tower end anchorage style to long span stayed-cable bridge uses steel anchor Case is anchored.Steel anchor box can batch micro operations, and can ensure that quality, speed of application be fast, stress reliability.But it is either built-in or external The anchor case of formula, due to there are two kinds of different materials of steel and concrete, both collective effects inevitably result in concrete towers Wall cracking, the durability and stability of influence tower column structure, and steel anchor box steel using amount are big, high cost, to construction machine during installation Tool requires high, it is necessary to configure Large-scale Hoisting equipment, especially in marine environment, durability and stability requirement to Sarasota structure It is higher, therefore the application of steel anchor box has limitation.Widely used steel anchor beam anchoring at present, it has many advantages, such as.But it is current In steel anchor beam anchor structure, due to there is horizontal out-of-balance force, this mode is only applicable to parallel rope face cable-stayed bridge, it is impossible to be applied to Spatial Cable face cable-stayed bridge, it uses scope greatly to be limited:In addition, although the horizontal out-of-balance force of king-post anchorage zone is small, But the king-post of parallel rope face cable-stayed bridge can also be had a negative impact, in addition, with welding between suspension cable anchorage head and anchoring beam Mode be attached fixation, be easy to occur the defects such as weld crack, lack of penetration, slag inclusion, stomata and weld appearance shortcoming, this A little shortcomings reduce section of weld joint product, reduce bearing capacity, produce stress concentration, cause crackle;Fatigue strength is reduced, easily causes weldering Part rupture causes brittle failure, wherein harm maximum is weld crack and incomplete fusion, these defects are difficult to elimination comprehensively, cause oblique pull Rope anchorage head is connected unstable with anchoring beam, can may also deform, and changes bridge structure, triggers dangerous.Thus, it is necessary to design One kind can be applicable parallel and Spatial Cable face cable-stayed bridge, both the steel anchor beam structure of economy and durability, Stability Analysis of Structures, and convenient construction.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of steel anchor beam, including box anchoring beam and suspension cable Anchorage head, the front end and end of box anchoring beam both sides are respectively equipped with suspension cable anchorage head, and described box anchoring beam both sides are Refer to the both sides on box anchoring beam length side, suspension cable anchorage head is welded on box anchoring beam, the madial wall of suspension cable anchorage head with The side of box anchoring beam is fitted welding entirely, (the i.e. close box anchor of suspension cable anchorage head on the inner side of the suspension cable anchorage head The side of Gu Liang is inner side) suspension cable anchorage head connecting hole is provided with, the both sides of box anchoring beam are provided with anchoring beam connecting hole, and And suspension cable anchorage head connecting hole and anchoring beam connecting hole are on the same line, namely same center line, fining twisted steel is passed through Suspension cable anchorage head connecting hole and anchoring beam connecting hole, it is possible thereby to strengthen suspension cable anchorage head and anchoring beam between connect it is steady It is qualitative, weld defect is eliminated well brings harmful effect, improve the stability of steel anchor beam.
It is preferred that, the fining twisted steel is anchored beam and is connected by nut with suspension cable anchorage head, box, simple installation.
It is preferred that, it is provided with pad between described nut and suspension cable anchorage head inner side.
Further strengthen the stability of suspension cable anchorage head, suspension cable anchorage head outside is provided with least 1 piece suspension cable anchor Gu head stiffener.Specifically, suspension cable anchorage head stiffener is located at the outside of lateral wall.
Typically, suspension cable anchorage head outside is provided with 2-10 block suspension cable anchorage head stiffeners, preferably 3-8 blocks, more preferably 4-6 Block.
Specifically, described box anchoring beam includes web, base plate, dividing plate, upper cover plate, and the both sides of base plate are (that is, bottom The side both sides long of plate) web is respectively equipped with, web is vertical with base plate to be connected, and web is parallel to each other, and the upper cover plate is set Above web, upper cover plate and base plate, web form coffin, be arranged with parallel between the web of base plate both sides 2-10 blocks every Plate, preferably 3-8 blocks, more preferably 4-6 blocks, dividing plate are mutually perpendicular to web, base plate.
The anchoring beam connecting hole is located on web.
Typically, described box anchoring beam is provided with least 1 piece abdomen with the web inner side of each suspension cable anchorage head junction Plate stiffener.It is preferred that, described box anchoring beam is provided with 2-10 block webs with the web inner side at each suspension cable anchorage head company Stiffener, preferably 3-8 blocks, more preferably 4-6 blocks.
Specifically, described suspension cable anchorage head includes, anchor plate, madial wall, lateral wall, interior bearing plate and outer pressure-bearing Plate, the anchor plate is arranged on suspension cable anchorage head top, and madial wall and lateral wall are separately positioned on the interior of suspension cable anchorage head Side and outside, interior bearing plate and outer bearing plate are separately positioned on the upper and lower part of suspension cable anchorage head.
The suspension cable anchorage head connecting hole is located on madial wall.Fining twisted steel through suspension cable anchorage head madial wall and Web.
Typically, the interior bearing plate of suspension cable anchorage head, outer bearing plate, madial wall, lateral wall are surrounded coffin with Box anchoring beam is in a certain angle, and one end that the coffin is tilted upward is the top of suspension cable;Suspension cable anchorage head is close to The side of box anchoring beam is inner side, and the side away from box anchoring beam is outside;Suspension cable anchorage head anchors beam near box The side of base plate is the bottom of suspension cable anchorage head, and away from base plate is the top of suspension cable anchorage head;
Steel anchor beam is the individual member in stayed bridge pylon cable, is supported on the vertical bracket of cable-stayed bridge hollow tower column tower wall, Respectively there are two suspension cable anchorage heads of connection suspension cable at its two ends, and suspension cable anchorage head is used to fix the upper end of suspension cable.This The box steel anchor beam of utility model is welded plus the 4 symmetrical anchorage heads that are screwed for connecting suspension cable, each pair oblique pull altogether The inside and outside equilibrium level component in face of rope is born by box steel anchor beam, and a small amount of imbalance horizontal component is born by king-post outside face;Oblique pull The vertical force component of rope passes to tower wall and is born by king-post by bracket.It had both been applicable to parallel rope face cable-stayed bridge, was equally applicable to Spatial Cable face cable-stayed bridge, in could be applicable to the construction of other bridges.
Compared with prior art, the utility model has following Advantageous Effects:
1st, stress balance.Four suspension cable anchorage heads are arranged symmetrically, and can balance the equilibrium level of the inside and outside horizontal direction in face Component, makes the king-post of parallel rope face cable-stayed bridge more stable, steel anchor beam is gone for Spatial Cable face cable-stayed bridge, expands it Use scope.
2nd, Stability Analysis of Structures.The anchorage head that box anchors beam and both sides is connected with screw-thread steel, it is steady further to strengthen anchorage head It is qualitative, so that the stability of whole steel anchor beam has been lifted.
3rd, it is easy for installation.Outer bearing plate and interior bearing plate are directly directly welded at the complex procedures of the assemblings such as web, by mistake Difference is larger, changes the suspension cable anchorage head by making and is directly welded with web, and assembling is simple, and error is smaller, easy for installation.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model steel anchor beam.
Fig. 2 is the structure top view of the utility model steel anchor beam.
Reference
1 suspension cable anchorage head;2 boxes anchor beam;3 fining twisted steels;401 suspension cable anchorage head stiffeners;402 webs add Strength plate;201 webs;202 base plates;203 dividing plates;204 upper cover plates;101 anchor plates;102 madial walls;103 lateral walls;Held in 104 Pressing plate;105 outer bearing plates.
Specific embodiment
The utility model is elaborated below in conjunction with the accompanying drawings:
A kind of steel anchor beam, including box anchoring beam 2 and suspension cable anchorage head 1, the front end and end of box anchoring beam 2 both sides Suspension cable anchorage head 1 is respectively equipped with, suspension cable anchorage head 1 is welded on box anchoring beam 2, it is characterised in that:The suspension cable The madial wall 102 of anchorage head 1 is provided with suspension cable anchorage head connecting hole 301, and the both sides for anchoring beam 2 are provided with anchoring beam connecting hole 302, and suspension cable anchorage head connecting hole 301 and anchoring beam connecting hole 302 are on the same line, and fining twisted steel 3 is through tiltedly Anchor-hold head connecting hole 301 and anchoring beam connecting hole 302.
The fining twisted steel 3 anchors beam 2 and is connected by nut and suspension cable anchorage head 1, box.
Pad is provided between described nut and suspension cable anchorage head 1, box anchoring beam 2.
The outside of the suspension cable anchorage head 1 is provided with least 1 piece suspension cable anchorage head stiffener 401, preferably 2-10 blocks, excellent Select 3-8 blocks, more preferably 4-6 blocks.Specifically, suspension cable anchorage head stiffener 401 is located at the outside of lateral wall 103.
Specifically, described box anchoring beam 2 includes web 201, base plate 202, dividing plate 203, upper cover plate 204, base plate 202 are respectively provided on two sides with web 201, and web 201 is vertical with base plate 202 to be connected, the upper cover plate 204 is arranged on web 201 Top, upper cover plate 204 forms coffin with base plate 202, web 204, is be arranged in parallel between the web 201 of the both sides of base plate 202 There is 2-10 blocks dividing plate 203, dividing plate 203 is mutually perpendicular to web 201, base plate 202.
Typically, the anchoring beam connecting hole 302 is located on web 201.
Described box anchoring beam 2 is provided with least 1 piece abdomen with the inner side of web 201 of each junction of suspension cable anchorage head 1 Plate stiffener 402, preferably 2-10 blocks, preferably 3-8 blocks, more preferably 4-6 blocks.
Specifically, described suspension cable anchorage head 1 includes, anchor plate 101, madial wall 102, lateral wall 103, interior pressure-bearing Plate 104 and outer bearing plate 105, the anchor plate 101 are arranged on the top of suspension cable anchorage head 1, madial wall 102 and lateral wall 103 The inner side and outer side of suspension cable anchorage head 1 is separately positioned on, interior bearing plate 104 and the excrement of outer bearing plate 105 are arranged on suspension cable The upper and lower part of anchorage head 1.
The suspension cable anchorage head connecting hole 301 is located on madial wall 102.
Embodiment 1
As shown in Figure 1, 2, the steel anchor beam of cable-stayed bridge includes that box anchors beam 2 and 4 oblique pulls for being used to connect suspension cable Rope anchorage head 1.Box anchoring beam 2 is welded by web 201, base plate 202 and upper cover plate 204, in the stage casing of box anchoring beam 2 5 pieces of dividing plates 203 of portion's uniform welding, the two ends (that is, with the web inner side of the junction of suspension cable anchorage head) of the inner side of web 201 are each 5 pieces of web stiffeners 402 of welding, dividing plate 203 and web stiffener 402 strengthen the intensity that box anchors beam 2.Box anchors beam Suspension cable anchorage head 1 is respectively welded in the front end and end of 2 both sides, and suspension cable anchorage head 1 is symmetrical, suspension cable anchorage head 1 by Anchor plate 101, the interior bearing plate 104 be arrangeding in parallel and outer bearing plate 105 are welded, anchor plate 101, interior bearing plate 104, outer Bearing plate 105 is all welded and fixed with madial wall 102, lateral wall 103.The outside of suspension cable anchorage head lateral wall 103 is provided with least 3 Block suspension cable anchorage head stiffener, further strengthens the stability of suspension cable anchorage head.The madial wall 102 of suspension cable anchorage head 1 Collinear suspension cable anchorage head connecting hole 301, anchoring beam connecting hole are offered respectively with the web 201 of box anchoring beam 2 302, through suspension cable anchorage head connecting hole 301 and anchoring beam connecting hole 302, fining twisted steel passes through nut to fining twisted steel 3 It is connected with suspension cable anchorage head 1, box anchoring beam 2, pad is provided between described nut and suspension cable anchorage head madial wall 102 Piece.The upper end of suspension cable penetrates suspension cable anchorage head 1 and is connected to a fixed, and suspension cable is vertical with anchor plate 101, interior bearing plate 104th, outer bearing plate 105 is parallel.4 suspension cable anchorage heads 1 are arranged symmetrically, and can balance the equilibrium water of the inside and outside horizontal direction in face Divide power equally, make the king-post of parallel rope face cable-stayed bridge more stable, steel anchor beam is gone for Spatial Cable face cable-stayed bridge, expand It uses scope.
Compared with prior art, the steel anchor beam of the oblique tensile tower client link of the utility model cable-stayed bridge have it is rational in infrastructure, Stress balance, rolled steel dosage are few, low cost, the advantage that stability is strong, hoisting weight is light.
The steel anchor beam of the utility model cable-stayed bridge can also be used in other bridge constructions.

Claims (10)

1. a kind of steel anchor beam, including box anchors beam (2) and suspension cable anchorage head (1), the front end of box anchoring beam (2) both sides with End is respectively equipped with suspension cable anchorage head (1), and suspension cable anchorage head (1) is welded on box and anchors on beam (2), it is characterised in that: The inner side of the suspension cable anchorage head (1) is provided with suspension cable anchorage head connecting hole (301), and the both sides of anchoring beam (2) are provided with Anchoring beam connecting hole (302), and suspension cable anchorage head connecting hole (301) and anchoring beam connecting hole (302) are on the same line, Fining twisted steel (3) is through suspension cable anchorage head connecting hole (301) and anchors beam connecting hole (302).
2. steel anchor beam according to claim 1, it is characterised in that:The fining twisted steel (3) is by nut and suspension cable Anchorage head (1), box anchor beam (2) connection, and pad is provided between described nut and suspension cable anchorage head (1) inner side.
3. steel anchor beam according to claim 1, it is characterised in that:Suspension cable anchorage head (1) outside is provided with least 1 piece oblique pull Rope anchorage head stiffener (401).
4. steel anchor beam according to claim 3, it is characterised in that:Suspension cable anchorage head (1) outside is provided with 2-10 block oblique pulls Rope anchorage head stiffener (401).
5. steel anchor beam according to claim 1, it is characterised in that:Described box anchor beam (2) including web (201), Base plate (202), dividing plate (203), upper cover plate (204), base plate (202) are respectively provided on two sides with web (201), web (201) with Base plate (202) is vertically connected, and the upper cover plate (204) is arranged on web (201) top, upper cover plate (204) and base plate (202), Web forms coffin, and 2-10 blocks dividing plate (205), dividing plate are arranged with parallel between the web (201) of base plate (202) both sides (205) it is mutually perpendicular to web (201), base plate (202).
6. steel anchor beam according to claim 5, it is characterised in that:Described box anchors beam (2) and each suspension cable anchor Web (201) inner side of head Gu (1) junction is provided with least 1 piece web stiffener (402).
7. steel anchor beam according to claim 6, it is characterised in that:Described box anchors beam (2) and each suspension cable anchor Web (201) inner side of head Gu (1) junction is provided with 2-10 block webs stiffener (402).
8. steel anchor beam according to claim 7, it is characterised in that:Anchoring beam connecting hole (302) is located at web (201) On.
9. steel anchor beam according to claim 1, it is characterised in that:Described suspension cable anchorage head (1) is including anchor plate (101), madial wall (102), lateral wall (103), interior bearing plate (104) and outer bearing plate (105), the anchor plate (101) set Put at suspension cable anchorage head (1) top, madial wall (102) and lateral wall (103) are separately positioned on the interior of suspension cable anchorage head (1) Side and outside, interior bearing plate (104) and outer bearing plate (105) are separately positioned on the upper and lower part of suspension cable anchorage head (1).
10. steel anchor beam according to claim 9, it is characterised in that:In the suspension cable anchorage head connecting hole (301) is located at On side wall (102).
CN201621038761.7U 2016-09-06 2016-09-06 Steel anchor beam Active CN206204784U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621038761.7U CN206204784U (en) 2016-09-06 2016-09-06 Steel anchor beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621038761.7U CN206204784U (en) 2016-09-06 2016-09-06 Steel anchor beam

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CN206204784U true CN206204784U (en) 2017-05-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108098264A (en) * 2017-11-28 2018-06-01 江苏中铁山桥重工有限公司 A kind of manufacturing method of multimode stage construction bolt anchoring beam

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108098264A (en) * 2017-11-28 2018-06-01 江苏中铁山桥重工有限公司 A kind of manufacturing method of multimode stage construction bolt anchoring beam
CN108098264B (en) * 2017-11-28 2019-10-18 江苏中铁山桥重工有限公司 A kind of manufacturing method of multimode stage construction bolt anchoring beam

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