CN105755967B - The separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus - Google Patents
The separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus Download PDFInfo
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- CN105755967B CN105755967B CN201610303392.8A CN201610303392A CN105755967B CN 105755967 B CN105755967 B CN 105755967B CN 201610303392 A CN201610303392 A CN 201610303392A CN 105755967 B CN105755967 B CN 105755967B
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- primary structure
- structure member
- tail end
- hanging basket
- steel plate
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus, it contains independent separate formula shear connector, beam body built-in fitting and Hanging Basket tail end primary structure member, and the independent separate formula shear connector includes upper wedge primary structure member, bottom collet primary structure member and longitudinally adjust gearshift；The beam body built-in fitting includes stiffener after vertical pre-embedded steel slab and steel plate；The Hanging Basket tail end wedge shape primary structure member is arranged on Hanging Basket main longitudinal grider tail end；The upper wedge primary structure member is fixedly connected by anchorage screw with the vertical pre-embedded steel slab, and the threaded mandrel of the longitudinally adjust gearshift is held out against on the Hanging Basket tail end wedge shape primary structure member.The present invention can be installed in advance, and the thrust key apparatus stress surface caused by suspended basket error is adjusted to be adjusted outside beam body with main beam stress face gap, operational sequence is reduced, saves time cost.
Description
Technical field：
The present invention relates to a kind of cable-stayed bridge main-beam dragging suspension basket thrust key, is hung more particularly to a kind of cable-stayed bridge main-beam guy rope
The separate type of basket can adjust thrust key apparatus.
Background technology：
In recent years, as bridge across, light-duty, high-strength, general direction to developing greatly, prestressed concrete cable-stayed bridge is passed through with it
Ji, easy for construction, span ability are favored by force, and cable-stayed bridge main-beam cantilever casting construction increasingly tends to large-scale loading basket, it
The horizontal and vertical rigidity needed for main girder construction can be met, ensure the arriving for line style of work progress middle girder, and can meet
Stayed Cable Construction requirement.
Construction for wide cut, overweight, long Segmental and the limited cable-stayed bridge concrete girder of rigidity, the selection of Hanging Basket need
Want prioritizing selection front fulcrum dragging suspension basket, in beam section work progress for ensure girder line style and poured beam section occur without drawing answer
Power, generation vertical equity displacement when setting thrust key apparatus to prevent Hanging Basket tensioning suspension cable in dragging suspension basket main longitudinal grider rear end, one
As thrust key apparatus and Hanging Basket set it is integral, in beam body headspace, with the lifting thrust key apparatus of Hanging Basket enter it is reserved
Space, often thrust key apparatus stress surface can not be closely connected with the pre-buried stress surface of beam body, then needs to clog high-strength sand in its gap
Slurry, has been poured on girder be delivered to the horizontal component of suspension cable, if it is difficult filling that it is very narrow, which the shortcomings that this way to be exactly gap,
It is closely knit and need to wait mortar strength to reach requirement and could carry out inclined guy cable stretching, influence girder cantilever casting construction progress.
The content of the invention：
The technical problems to be solved by the invention are：Overcome the deficiencies in the prior art, there is provided one kind design is unique, structure letter
The separate type of the significantly more efficient cable-stayed bridge main-beam dragging suspension basket of single, easy to operate and power transmission can adjust thrust key apparatus.
The technical scheme is that：
A kind of separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus, containing independent separate formula shear connector,
Beam body built-in fitting and Hanging Basket tail end primary structure member, the independent separate formula shear connector include upper wedge primary structure member, lower bottom
Hold in the palm primary structure member and longitudinally adjust gearshift；The beam body built-in fitting includes stiffener after vertical pre-embedded steel slab and steel plate；
The Hanging Basket tail end wedge shape primary structure member is arranged on Hanging Basket main longitudinal grider tail end；The upper wedge primary structure member passes through anchorage screw
It is fixedly connected with the vertical pre-embedded steel slab, the longitudinally adjust gearshift is held out against in the Hanging Basket tail end wedge shape primary structure member
On.
The longitudinally adjust gearshift includes threaded mandrel and screw shell, and the two spins together, the thread bush
Cylinder is arranged on the bottom collet primary structure member, and the outer end of the threaded mandrel is held out against in the Hanging Basket tail end wedge shape stress structure
On part.
Anti-slip rubber pad, institute are provided between the outer end of the threaded mandrel and the Hanging Basket tail end wedge shape primary structure member
The rubber that rubber antiskid pad is high tensile flexible is stated, its thickness is not less than 1cm, and the rear end of the screw shell is taper knot
Structure；The threaded mandrel is not less than Φ 160mm high intensity thread threaded mandrel using diameter, and the screw shell is using high-strength
Steel are fabricated.
The vertical pre-embedded steel slab of the beam body built-in fitting is welded with stiffener after steel plate using consent penetration, the steel plate
It is provided with stiffener mesh sheet on stiffener afterwards, stiffener and stiffener mesh sheet use ordinary steel after the steel plate
Muscle.
The upper wedge primary structure member and bottom collet primary structure member are welded to connect shaping, the steel plate using steel plate
Using high-strength steel sheet material, key position meets full penetration I level level weld seam requirements using groove welding form quality；The anchoring spiral shell
Bar is not less than Φ 32mm finish rolling deformed bar, the form that both ends anchoring is added gasket using bolt-nut using eight diameters.
The beneficial effects of the invention are as follows：
1st, the present invention can install in advance, will thrust key apparatus stress surface and main beam stress caused by suspended basket error
Face gap is adjusted to be adjusted outside beam body, reduces operational sequence, saves time cost.
2nd, stress surface of the present invention and beam body built-in fitting stress surface Position Design are fixed on certain position, closely connected closed seamless
Gap, pointing can be saved；Anchorage screw is anchored in beam bottom, operation letter using 8 diameters not less than the finish rolling deformed bars of Φ 32
Just, two stress surface sizes can carry out optimization adjustment to folk prescription according to suspension cable maximum horizontal component during construction, can be to greatest extent
Reduce girder beam bottom headspace size.
3rd, after present invention installation fixes, the handle on longitudinally adjust gearshift threaded mandrel is rotated, adjusts screw thread
Push rod elongation makes threaded mandrel contact rubber antiskid pad prop up Hanging Basket tail end stress tapered member, easy to operate, Neng Goufei
Often effectively horizontal component force of stayed cable is delivered on girder, reach thrust effect, prevent Hanging Basket rearward displacement.
4th, rubber antiskid pad of the present invention is the rubber of high tensile flexible, longitudinal adjustment apparatus threaded mandrel and Hanging Basket tail
It is convex curved surface to hold stress tapered member contact surface, and longitudinal adjustment apparatus threaded mandrel is added with hanging using rubber antiskid pad
Contact area between basket tail end stress tapered member, play good skidproof effect, and the light small, side of rubber antiskid shim size
Just installation is changed.
5th, unique, simple in construction, the easy to operate and power transmission of present invention design is more efficient, implementation easy to spread, has good
Good economic benefit.
Brief description of the drawings：
Fig. 1 is the mounting structure schematic diagram of the present invention；
Fig. 2 is the mounting structure enlarged drawing of independent separate formula shear connector in Fig. 1；
Fig. 3 is the floor map of independent separate formula shear connector in Fig. 2；
Fig. 4 is the enlarged drawing of beam body built-in fitting in Fig. 1.
Embodiment：
Embodiment：Referring to Fig. 1-Fig. 4, in figure, 1- independent separate formula shear connectors, 2- beam body built-in fittings, 3- Hanging Basket tail end wedges
Shape primary structure member, 4- anti-slip rubber pads, 5- girders, 6- Hanging Baskets, 7- suspension cables, 8- bottoms collet primary structure member, 9- tops wedge
Shape primary structure member, 10- longitudinally adjust gearshifts, 11- anchorage screws, the vertical pre-embedded steel slabs of 12-, stiffener after 13- steel plates,
14- stiffener mesh sheet.
A kind of separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus, wherein：Independent separate formula shear connector 1
Including upper wedge primary structure member 9, bottom collet primary structure member 8, anchorage screw 11 and longitudinally adjust gearshift 10；Beam body is pre-
Embedded part 2 includes stiffener 13 and stiffener mesh sheet 14 after vertical pre-embedded steel slab 12, steel plate；Hanging Basket tail end wedge shape primary structure member
3 are arranged on the main longitudinal grider tail end of Hanging Basket 6；Anti-slip rubber pad 4 is arranged on independent separate formula shear connector 1 and Hanging Basket tail end wedge shape stress
Between component 3, held out against with the longitudinally adjust gearshift 10 on independent separate formula shear connector 1 in Hanging Basket tail end wedge shape primary structure member
On 3.
The upper wedge primary structure member 9 and bottom collet primary structure member 8 of independent separate formula shear connector 1 are used and are welded to connect into
Type, steel plate use high-strength steel sheet material（Such as Q345）, key position meets full penetration I level weld seams using groove welding form quality
It is required that；Anchorage screw 11 is not less than Φ 32mm finish rolling deformed bar using eight diameters, and both ends anchoring is added using bolt-nut
The form of pad；Longitudinally adjust gearshift 10 includes threaded mandrel and screw shell, and the two is spun together, and screw shell is set
Put on bottom collet primary structure member 8, the outer end of the threaded mandrel of longitudinally adjust gearshift 10 is held out against in Hanging Basket tail end wedge shape
On primary structure member 3.The threaded mandrel of longitudinally adjust gearshift 10 is not less than Φ 160mm high strength steel thread using diameter
Form, screw shell is fabricated using high-strength steel.
The vertical pre-embedded steel slab 12 of beam body built-in fitting 2 is welded with stiffener 13 after steel plate using consent penetration, after steel plate
Stiffener 13 and stiffener mesh sheet 14 use regular reinforcement；
Hanging Basket tail end wedge shape primary structure member 3 is identical with the main longitudinal grider material of Hanging Basket 6, using high strength steel plate, such as Q345；It is anti-skidding
Rubber sheet gasket 4 uses high tensile flexible rubber, and thickness is not less than 1cm；
The present invention is Hanging Basket tail end primary structure member 3 and the main longitudinal grider of Hanging Basket 6 sets one, with independent separate formula shear connector 1,
Beam body built-in fitting 2 is on same longitudinal axis direction；The horizontal component of suspension cable 7 can be made effectively first from the arc of Hanging Basket 6
It is delivered to respectively by Hanging Basket tail end primary structure member 3, anti-slip rubber pad 4, independent separate formula shear connector 1 and beam body built-in fitting 2
Pour on girder 5, ensured the construction quality of girder 5 and safety.
After present invention installation fixes, the handle on longitudinally adjust gearshift threaded mandrel, regulation screw thread top are rotated
Bar elongation makes threaded mandrel contact rubber antiskid pad prop up Hanging Basket tail end stress tapered member, easy to operate, can be very
Effectively horizontal component force of stayed cable is delivered on girder, reach thrust effect, prevent Hanging Basket rearward displacement.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within
In the range of technical solution of the present invention.
Claims (3)
1. a kind of separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus, contain independent separate formula shear connector, beam
Body built-in fitting and Hanging Basket tail end wedge shape primary structure member, it is characterized in that：The independent separate formula shear connector includes upper wedge stress
Component, bottom collet primary structure member and longitudinally adjust gearshift；The beam body built-in fitting includes vertical pre-embedded steel slab and steel plate
Stiffener afterwards；The Hanging Basket tail end wedge shape primary structure member is arranged on Hanging Basket main longitudinal grider tail end；The upper wedge primary structure member
It is fixedly connected by anchorage screw with the vertical pre-embedded steel slab, the longitudinally adjust gearshift is held out against in the Hanging Basket tail end
On wedge-shaped primary structure member；The longitudinally adjust gearshift includes threaded mandrel and screw shell, and the two spins together, described
Screw shell is arranged on the bottom collet primary structure member, and the outer end of the threaded mandrel is held out against in Hanging Basket tail end wedge shape
On primary structure member；Anti-skid rubber cushion is provided between the outer end of the threaded mandrel and the Hanging Basket tail end wedge shape primary structure member
Piece, the rubber antiskid pad are the rubber of high tensile flexible, and its thickness is not less than 1cm, and the rear end of the screw shell is
Pyramidal structure；The threaded mandrel is not less than Φ 160mm high intensity thread threaded mandrel using diameter, and the screw shell is adopted
It is fabricated with high-strength steel.
2. the separate type of cable-stayed bridge main-beam dragging suspension basket according to claim 1 can adjust thrust key apparatus, it is characterized in that：
The vertical pre-embedded steel slab of the beam body built-in fitting is welded with stiffener after steel plate using consent penetration, strengthens steel after the steel plate
It is provided with stiffener mesh sheet on muscle, stiffener and stiffener mesh sheet use regular reinforcement after the steel plate.
3. the separate type of cable-stayed bridge main-beam dragging suspension basket according to claim 1 can adjust thrust key apparatus, it is characterized in that：
The upper wedge primary structure member and bottom collet primary structure member are welded to connect shaping using steel plate, and the steel plate is using high-strength
Steel plate material is spent, key position meets full penetration I level level weld seam requirements using groove welding form quality；The anchorage screw uses eight
Root diameter is not less than Φ 32mm finish rolling deformed bar, the form that both ends anchoring is added gasket using bolt-nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303392.8A CN105755967B (en) | 2016-05-10 | 2016-05-10 | The separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610303392.8A CN105755967B (en) | 2016-05-10 | 2016-05-10 | The separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105755967A CN105755967A (en) | 2016-07-13 |
| CN105755967B true CN105755967B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610303392.8A Active CN105755967B (en) | 2016-05-10 | 2016-05-10 | The separate type of cable-stayed bridge main-beam dragging suspension basket can adjust thrust key apparatus |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958206B (en) * | 2017-04-07 | 2018-10-12 | 中交第二公路勘察设计研究院有限公司 | Hybrid structure of arch and beam formula continuous rigid frame bridge bilayer bottom basket bilayer button hangs constructing device and method |
| CN111576246A (en) * | 2020-06-24 | 2020-08-25 | 中铁十七局集团上海轨道交通工程有限公司 | Steel-concrete combined embedded thrust structure of stayed-cable bridge guyed hanging basket |
| CN112095492B (en) * | 2020-10-20 | 2021-11-12 | 安徽省公路桥梁工程有限公司 | Thrust device of guy rope hanging basket for bridge construction |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2597531Y (en) * | 2002-11-21 | 2004-01-07 | 广东省长大公路工程有限公司第一分公司 | Single rope face tracting rope hanging cage |
| JP2005139835A (en) * | 2003-11-10 | 2005-06-02 | Otaki Jack Kk | Cable pulling-in, tensioning and fixing construction method and cable pulling-in device used therefor |
| CN202055176U (en) * | 2011-04-18 | 2011-11-30 | 中交武汉港湾工程设计研究院有限公司 | Composite hanging basket with center cable plane and big cantilever girder structure |
| CN103628422B (en) * | 2013-10-30 | 2016-04-13 | 中建三局建设工程股份有限公司 | A kind of anti-force type dragging suspension basket prepressing device and implementation method thereof |
| CN205591130U (en) * | 2016-05-10 | 2016-09-21 | 河南省公路工程局集团有限公司 | Adjustable thrust key device of disconnect -type of basket is hung to cable -stay bridge girder guy rope |
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2016
- 2016-05-10 CN CN201610303392.8A patent/CN105755967B/en active Active
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