CN110424248A - A kind of horizontal suspension cable steel trestle - Google Patents
A kind of horizontal suspension cable steel trestle Download PDFInfo
- Publication number
- CN110424248A CN110424248A CN201910781520.3A CN201910781520A CN110424248A CN 110424248 A CN110424248 A CN 110424248A CN 201910781520 A CN201910781520 A CN 201910781520A CN 110424248 A CN110424248 A CN 110424248A
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- China
- Prior art keywords
- suspension cable
- horizontal suspension
- trestle
- pier
- ing
- Prior art date
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- 239000000725 suspension Substances 0.000 title claims abstract description 61
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 244000261422 Lysimachia clethroides Species 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- 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
- E01D11/02—Suspension 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
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 horizontal suspension cable steel trestles, the trestle stake including pier of main beam downstream side is arranged in；Horizontal suspension cable is equipped between two adjacent pier of main beam, the horizontal suspension cable connects the trestle stake by back(ing) bar.The upstream side of the horizontal suspension cable connection host bridge bridge pier.The beneficial effects of the present invention are: tighten steel trestle in the horizontal direction using the horizontal suspension cable connecting with main pier, infrastructure cost itself that the ability that trestle resists flood impact can be significantly increased, and reduce steel trestle；Back(ing) bar connects trestle stake by being equipped with the lifting lug of safety pin, can avoid horizontal suspension cable load and crosses macrolesion pier of main beam, guarantees the safety of pier of main beam.
Description
Technical field
The invention belongs to field of bridge construction more particularly to a kind of horizontal suspension cable steel trestles.
Background technique
In deep-water bridge construction, underwater foundation construction becomes the emphasis of bridge construction, difficult point.Steel trestle is as entire bridge
The supply line of personnel, material, machinery in beam process of construction, function is quite important in bridge construction process, deep water steel trestle
Maximum challenge is how to guarantee the trestle stake lateral stability in the case where flowing water pressure acts on.The destruction of steel trestle is typically all to wash away
Rather than crush, so the design of steel trestle needs the flow velocity of reasonable consideration flood to the flowing water pressure of trestle stake, determines and close
Ability from the trestle anti-side of reason to flowing water pressure, the ability of the anti-lateral impact of trestle can neither it is too high can not be too low, anti-impact
It is too high to hit ability, trestle economy is very low, and impact resistance is too low, is easy to be washed away, can mention by reinforcing means appropriate
The impact resistance of high trestle and the construction cost for reducing trestle.
Summary of the invention
The purpose of the present invention is to propose to a kind of technical solutions of horizontal suspension cable steel trestle, improve trestle and resist flood impact
Ability, and ensure the safety of pier of main beam.
To achieve the goals above, the technical scheme is that a kind of horizontal suspension cable steel trestle, including it is arranged in main bridge
The trestle stake in bridge pier downstream side is equipped with multiple trestle stakes between two adjacent pier of main beam；In two adjacent pier of main beam
Between be equipped with horizontal suspension cable, the horizontal suspension cable connects the trestle stake by back(ing) bar.
Further, in order to resist water flow to the impact force of steel trestle, the horizontal suspension cable connects host bridge bridge pier
Upstream side.
Further, in order to firmly draw solid steel trestle, each trestle stake passes through two back(ing) bar connections
The horizontal suspension cable.
Further, in order to balance more back(ing) bars to the pulling force of horizontal suspension cable, the back(ing) bar passes through stretcher
Connect the trestle stake.
Further, the stretcher adjusts the sunpender to the pulling force of horizontal suspension cable, the drawing of multiple back(ing) bars
Power makes between two adjacent pier of main beam horizontal suspension cable at catenary shape.
Further, in order to avoid damaging pier of main beam in the overload of horizontal suspension cable pulling force, the back(ing) bar is by hanging
Ear connects the trestle stake, and the lifting lug is equipped with safety pin, and the safety pin is cut off when load is more than safety margins
Pin shaft.
Further, as one kind, more preferably safety pin, the ultimate load of the safety pin are 20kN.
Further, a kind of preferred horizontal suspension cable and back(ing) bar structure be, the horizontal suspension cable use diameter for
The wirerope of 50mm, the back(ing) bar use diameter for the wirerope of 15mm.
The beneficial effects of the present invention are: after the drilled pile construction of main body cushion cap is completed, before flood period does not arrive,
Using the horizontal suspension cable connecting with main pier, steel trestle is tensed in water (flow) direction, trestle can be significantly increased and resist flood impact
Ability, and the infrastructure cost for reducing steel trestle itself；Back(ing) bar connects trestle stake by being equipped with the lifting lug of safety pin, can avoid
Horizontal suspension cable load crosses macrolesion pier of main beam, guarantees the safety of pier of main beam.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is plane structure chart of the present invention；
Fig. 2 is facade structures figure of the present invention；
Fig. 3 is the A partial enlarged view of Fig. 2；
Fig. 4 is overall structure figure of the present invention (line frame graph).
Specific embodiment
As shown in Figure 1, Figure 2, Fig. 3, a kind of horizontal suspension cable steel trestle, the trestle stake including 10 downstream side of pier of main beam is arranged in
20, multiple trestle stakes are equipped between two adjacent pier of main beam；Horizontal suspension cable is equipped between two adjacent pier of main beam
30, the horizontal suspension cable connects the trestle stake by back(ing) bar 40.
The upstream side of the horizontal suspension cable connection host bridge bridge pier.
Each trestle stake connects the horizontal suspension cable by two back(ing) bars.
Back(ing) bar connects trestle stake by stretcher 50.
Stretcher adjusts sunpender to the pulling force of horizontal suspension cable, the pulling force of multiple back(ing) bars make two adjacent pier of main beam it
Between horizontal suspension cable at catenary shape.
The back(ing) bar connects the trestle stake by lifting lug 60, and the lifting lug is equipped with safety pin 61, the safety pin
It is the pin shaft cut-off when load is more than safety margins.
The ultimate load of the safety pin is 20kN.
The horizontal suspension cable uses diameter D for the wirerope of 50mm, and the back(ing) bar uses diameter d for the steel wire of 15mm
Rope.
Embodiment one:
As shown in Figure 1, Figure 2, Fig. 3, a kind of horizontal suspension cable steel trestle, the trestle stake 20 including 10 downstream side of pier of main beam is arranged in, phase
Multiple trestle stakes are equipped between two adjacent pier of main beam, trestle stake supports trestle bridge floor 21, and trestle is for the main bridge into construction
Transport personnel, material and mechanical equipment.
A horizontal suspension cable 30, the upstream side of horizontal suspension cable connection pier of main beam are equipped between two adjacent pier of main beam
(as shown in Figure 1).Horizontal suspension cable uses the wirerope (1860Mpa) of diameter D=50mm.Horizontal suspension cable is fixed on pier of main beam bottom
Portion, cushion cap top surface.
Trestle stake includes bottom concrete 22, and steel pipe column 23 is equipped on bottom concrete, is equipped on the top of steel pipe column
I-shaped gooseneck 24 is equipped with the stringer 25 that Bailey beam is constituted in I-shaped gooseneck, and bridge floor 21 uses anti-skid design steel plate.
Horizontal suspension cable connects trestle stake by back(ing) bar 40.Back(ing) bar uses the wirerope of diameter d=15mm.Each
Trestle stake states the horizontal suspension cable of back(ing) bar connection by two.One end that back(ing) bar is connect with trestle stake is equipped with stretcher 50,
Stretcher includes the opposite screw rod 51 of the hand of spiral at both ends.Stretcher connects lifting lug 60, and lifting lug connects the I-steel of trestle stake
Crossbeam 24 is achieved in the connection structure of back(ing) bar Yu trestle stake.Due to being equipped with multiple stacks between two adjacent pier of main beam
Bridge pier has the back(ing) bar mostly with connection horizontal suspension cable and trestle stake.The function of stretcher is to adjust back(ing) bar to hang level
The pulling force of rope is balanced more back(ing) bars to the pulling force of horizontal suspension cable, when drawing of the more back(ing) bars to horizontal suspension cable
When power is balanced, horizontal suspension cable can be made between two adjacent pier of main beam at catenary shape.
Lifting lug is equipped with safety pin 61, and safety pin is the pin shaft cut-off when load is more than safety margins.In the present embodiment,
The ultimate load of safety pin is 20kN.
Bottom concrete is equivalent to the Extended chemotherapy of trestle, prevents steel trestle unstability under general water velocity；Tubular pole column
Upper load is supported with the stringer of Bailey beam composition.Horizontal suspension cable plays the role of resisting flowing water pressure in flood period.Steel trestle
In main structure downstream, horizontal suspension cable anchor is horizontal on completed drilled pile steel pile casting or the pier stud of main structure
Suspension cable uses catenary, and back(ing) bar is attached using adjustable stretcher with trestle stake, in the construction process can be into
Row adjusts pulling force, and suspension cable form is made to be more nearly catenary.Trestle stake is connect by lifting lug with stretcher, and lifting lug is equipped with safety
Pin, safety pin carry out destruction calculating according to the maximum pull that can bear, and intensity selects 0.8 times of shearing strength, in this way excessive
It destroys back(ing) bar and the connection of trestle stake automatically, under the action of trestle is by excessive flowing water pressure, prevents
Main bridge structure is destroyed.Not only it can increase the ability that structure resists flood, but also be unlikely to impact main structure.Increase
Steel trestle after adding suspension cable changes structure type, and steel trestle is enable preferably to resist flood pressure, and stretcher is adjustable to be hung
The pulling force of bar applies initial tensile force, and lifting lug plays the role of protector, destroys automatically in the maximum pull for reaching design, right
Main structure plays a protective role.
Claims (8)
1. a kind of horizontal suspension cable steel trestle, the trestle stake including pier of main beam downstream side is arranged in, two adjacent pier of main beam it
Between be equipped with multiple trestle stakes；It is characterized in that, horizontal suspension cable is equipped between two adjacent pier of main beam, it is described horizontal outstanding
Rope connects the trestle stake by back(ing) bar.
2. a kind of horizontal suspension cable steel trestle according to claim 1, which is characterized in that the horizontal suspension cable connects the master
The upstream side of bridge bridge pier.
3. a kind of horizontal suspension cable steel trestle according to claim 1, which is characterized in that each trestle stake passes through two
The back(ing) bar connects the horizontal suspension cable.
4. a kind of horizontal suspension cable steel trestle according to claim 1, which is characterized in that the back(ing) bar passes through stretcher
Connect the trestle stake.
5. a kind of horizontal suspension cable steel trestle according to claim 4, which is characterized in that the stretcher adjusts the sunpender
To the pulling force of horizontal suspension cable, the pulling force of multiple back(ing) bars makes between two adjacent pier of main beam horizontal suspension cable at catenary
Shape.
6. a kind of horizontal suspension cable steel trestle according to claim 1, which is characterized in that the back(ing) bar is connected by lifting lug
The trestle stake is connect, the lifting lug is equipped with safety pin, and the safety pin is the pin shaft cut-off when load is more than safety margins.
7. a kind of horizontal suspension cable steel trestle according to claim 1, which is characterized in that the ultimate load of the safety pin is
20kN。
8. a kind of horizontal suspension cable steel trestle according to claim 1, which is characterized in that the horizontal suspension cable use diameter for
The wirerope of 50mm, the back(ing) bar use diameter for the wirerope of 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781520.3A CN110424248A (en) | 2019-08-23 | 2019-08-23 | A kind of horizontal suspension cable steel trestle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910781520.3A CN110424248A (en) | 2019-08-23 | 2019-08-23 | A kind of horizontal suspension cable steel trestle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110424248A true CN110424248A (en) | 2019-11-08 |
Family
ID=68417279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910781520.3A Pending CN110424248A (en) | 2019-08-23 | 2019-08-23 | A kind of horizontal suspension cable steel trestle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110424248A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207878458U (en) * | 2018-01-03 | 2018-09-18 | 中交武汉港湾工程设计研究院有限公司 | Interim steel trestle with resistance to plucking auxiliary pile |
| CN208201658U (en) * | 2018-05-09 | 2018-12-07 | 中建三局基础设施建设投资有限公司 | A kind of steel trestle rapid construction device |
| CN108999099A (en) * | 2018-09-10 | 2018-12-14 | 中建市政工程有限公司 | The method and its bracing means that a kind of steel trestle middle part cross spacing is reinforced |
| CN211256623U (en) * | 2019-08-23 | 2020-08-14 | 中交隧道工程局有限公司 | Horizontal suspension cable steel trestle |
-
2019
- 2019-08-23 CN CN201910781520.3A patent/CN110424248A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207878458U (en) * | 2018-01-03 | 2018-09-18 | 中交武汉港湾工程设计研究院有限公司 | Interim steel trestle with resistance to plucking auxiliary pile |
| CN208201658U (en) * | 2018-05-09 | 2018-12-07 | 中建三局基础设施建设投资有限公司 | A kind of steel trestle rapid construction device |
| CN108999099A (en) * | 2018-09-10 | 2018-12-14 | 中建市政工程有限公司 | The method and its bracing means that a kind of steel trestle middle part cross spacing is reinforced |
| CN211256623U (en) * | 2019-08-23 | 2020-08-14 | 中交隧道工程局有限公司 | Horizontal suspension cable steel trestle |
Non-Patent Citations (1)
| Title |
|---|
| 张战凯等: "深水钢栈桥设计方案对比分析", 《公路》, no. 6, pages 177 - 180 * |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huo Wenxing Inventor after: Xue Shifeng Inventor after: Deng Shichao Inventor after: Liu Guibo Inventor after: Ji Yaoxian Inventor after: Liu Hanshi Inventor before: Huo Wenxing Inventor before: Deng Shichao Inventor before: Liu Guibo Inventor before: Ji Yaoxian Inventor before: Liu Hanshi |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200414 Address after: 100102 Beijing City, Chaoyang District Lizedong two Road No. two building No. two hospital Applicant after: CCCC TUNNEL ENGINEERING Co.,Ltd. Applicant after: China University of Petroleum (East China) Address before: 100102 Beijing City, Chaoyang District Lizedong two Road No. two building No. two hospital Applicant before: CCCC TUNNEL ENGINEERING Co.,Ltd. |