CN203270463U - Bridge pier top swivel structure - Google Patents
Bridge pier top swivel structure Download PDFInfo
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- CN203270463U CN203270463U CN 201320213724 CN201320213724U CN203270463U CN 203270463 U CN203270463 U CN 203270463U CN 201320213724 CN201320213724 CN 201320213724 CN 201320213724 U CN201320213724 U CN 201320213724U CN 203270463 U CN203270463 U CN 203270463U
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- bridge pier
- pier top
- bridge
- turning
- bearing
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Abstract
The utility model relates to the field of construction of bridges, in particular to a bridge pier top swivel structure. The bridge pier top swivel structure comprises a swivel driving device, a lifting device, a supporting seat and a bridge pier, wherein a swivel spherical hinge is arranged at the top of the bridge pier, a steel guard sleeve is arranged on the outer side of the periphery of an upper spherical hinge of the swivel spherical hinge, therefore, partial pressure bearing at the bottom of a bridge meets the stress requirement, space for pier top operation is increased, and safety is improved. Besides, after a swivel is constructed, the upper spherical hinge and the steel guard sleeve also serve as transverse anti-beam-falling facilities.
Description
Technical field
The utility model relates to the bridge construction field, relates in particular to a kind of bridge pier top body rotation structure.
Background technology
After Bridge Rotation Construction Technique refers to bridge construction is made in non-design axial location (cast or splicing) shaping, by a kind of job practices in place of turning.The land operation that complicated, technical strong work high above the ground and operation at sea is become the bank due to construction by swing, not only construction safety, quality are desirable, and can not disturb traffic, uninterrupted navigation in the construction of cross-line overpass bridge frequently at navigable river or vehicle, infringement to environment is little, has good technical economic benefit, so often use in present bridge construction.In addition, along with advanced person's synchronous jack and the use of computer autocontrol technique, construction by swing progressively is applied on large span, large heavy girder, for example: the husky bridge (main bridge is 76m+360m+76m three Span Continuous self-anchoring type concrete-filled steel tubes arch bridge) of Guangzhou bifurcation hair worn in a bun or coil, be the bridge of turning of flatting turn after first vertical transfer, the weight of flatting turn reaches 13600 tons.
Existing rotator construction mainly comprises turns at the bottom of pier and Dun Ding turns two kinds.Turning at the bottom of pier is mainly between the levels cushion cap, the system of flatting turn is set between perhaps at the bottom of cushion cap and pier, builds bridge beam body, and pier beam consolidation or temporary consolidation rotate around cushion cap after becoming integral body jointly, realizes that bridge beam body turns.Owing to turning at the bottom of pier, bridge pier and bridge beam body are rotated together, so the weight ratio of turning is larger.And Dun Ding turns by between at the bottom of Dun Ding and beam, rotation system being set, and only need to rotate bridge beam body to get final product when turning, and therefore, the quality of turning is little.But the working space of Dun Ding is less, poor stability; If the increase working space, the space of turning that needs in the process of turning is larger, and cost is higher.
The utility model content
The technical problem that (one) will solve
The purpose of this utility model is to provide a kind of bridge pier top body rotation structure, and is little to overcome in prior art pier top working space, the defective of poor stability, and make the needed space of turning of turning little, cost is low.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of bridge pier top body rotation structure, comprise the drive unit of turning, lifting gear, bearing and bridge pier, be provided with Rotary ball hinge at described bridge pier top, the rotating disk that described Rotary ball hinge comprises the slideway of turning, upper ball pivot, lower ball pivot and is used for being connected with bridge beam body above upper ball pivot, it is characterized in that, this bridge pier top body rotation structure also arranges the steel casing in the upper ball pivot periphery of described Rotary ball hinge, the two ends of described steel casing respectively with described rotating disk be connected the upper ball pivot of Rotary ball hinge and be connected.
Wherein, the described installation of slide track of turning is at described bridge pier top.
Wherein, the described drive unit of turning is arranged on described bridge pier top.
Wherein, described lifting gear is arranged on the back timber jack at described bridge pier top.
Wherein, described bridge pier top body rotation structure also comprises the bearing slideway, so that described bearing slides into permanent location for supporting bridge beam body by described bearing slideway from the interim placement location of bridge pier side supports.
Wherein, described bearing adopts fixed bearing or freely movable bearing.
Wherein, the described turning hinge of turning adopts the steel ball hinge.
(3) beneficial effect
The bridge pier top body rotation structure that technique scheme provides, by between Dun Ding and beam body bottom, Rotary ball hinge being set, in the upper ball pivot periphery of Rotary ball hinge, steel sheath is set, make beam body bottom partial pressing satisfy force request, increase pier top working space, improved safety.In addition, Rotary ball hinge is not removed after completing turning, with as horizontal falling-off prevention measures, for the earthquake zone bridge superstructure increases anti-vibration defense lines one.Further, turn slideway, turn drive unit and back timber jack are set at the bridge pier top, make swivel structure compacter, when turning, the needed space of turning reduces, cost.
Description of drawings
Fig. 1 is the layout plan according to bridge pier top body rotation structure of the present utility model;
Fig. 2 be according to bridge pier top body rotation structure of the present utility model (along bridge to) the arrangement diagram of Rotary ball hinge;
Fig. 3 is the arrangement diagram according to the Rotary ball hinge of bridge pier top body rotation structure of the present utility model (direction across bridge);
Fig. 4 is according to bridge pier top body rotation structure of the present utility model double schematic diagram of doing horizontal girder falling of Rotary ball hinge after erection support;
Fig. 5 is the directiveness construction schematic diagram according to bridge pier top body rotation structure erection support of the present utility model.
Wherein: the 1-bridge pier; The 2-bridge beam body; The design attitude of 3-bridge beam body; 4-steel casing; The 5-locating shaft; The 6-rotating disk; The 7-spike; The 8-slideway of turning; The 9-bearing; 10-bearing slideway; The interim placement location of 11-bearing; The 12-drive unit of turning; The 13-pivot center; The 14-lifting gear.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Fig. 1 to Fig. 5 illustrates a preferred embodiment of bridge pier top body rotation structure of the present utility model.This bridge pier top body rotation structure, comprise for the drive unit 12 of turning that drives dial rotation, be used for the lifting bridge beam body lifting gear 14, turn complete after for bearing 9 and the bridge pier 1 of supporting bridge beam body 2, be provided with Rotary ball hinge at bridge pier 1 top.The rotating disk 6 that this Rotary ball hinge comprises the slideway 8 of turning, upper ball pivot, lower ball pivot and is used for being connected with bridge beam body 2.Lower ball pivot is positioned at bridge pier 1 top and is mounted in wherein, and upper ball pivot is attached on lower ball pivot and installs, and has the hole in the center of upper ball pivot and lower ball pivot, by insert locating shaft 5 in this hole, to realize the accurate location of upper ball pivot and lower ball pivot.Be provided with spike 7 below rotating disk 6, the slideway 8 of turning be arranged on spike 7 under.When turning, spike 7 is in the interior slip of slideway 8 of turning, to keep the stationarity of swivel structure.In addition, in the upper ball pivot periphery of Rotary ball hinge, steel casing 4 is set, the lower end of this steel casing 4 is fixed on upper ball pivot by modes such as welding, makes the axis of steel casing 4 roughly overlap with the axis of upper ball pivot; The upper end of steel casing 4 is fixedly connected with rotating disk 6, thereby make the rotation by Rotary ball hinge under the active force of drive unit 14 of turning of this bridge pier top body rotation structure that rotating disk 6 is rotated, rotate along the direction of arrow of Fig. 1 around the pivot center 13 that is arranged in the Rotary ball hinge circle centre position to drive the bridge beam body 2 that is connected with rotating disk 6.When the design attitude 3(that turns to bridge beam body namely, turn and complete the position of axle casing beam body 2) time, promote bridge beam body 2 by lifting gear 14, then bearing 9 is connected with bridge beam body 2.This bridge pier top body rotation structure is by arranging steel casing 4, make beam at the bottom of partial pressing satisfy force request, greatly reduced the size of rotating disk 6, increased pier top working space.
Further, due to pier top working space increase, turn slideway 8 and the drive unit 12 of turning can be set respectively at bridge pier 1 top.In addition, lifting gear 14 can adopt the back timber jack that arranges at bridge pier 1 top, so as turn complete after by back timber jack jacking bridge beam body 2.By turn in bridge pier 1 top setting slideway 8, turn drive unit 12 and lifting gear 14, make this bridge pier top body rotation structure compacter, economical, the needed space of turning of turning is reduced, and reduced cost of production.
Again further, this bridge pier top body rotation structure also comprises bearing slideway 10, make after bridge beam body 2 turns to design attitude, by this bearing slideway 10, bearing 9 is slid into permanent location for supporting bridge beam body 2 from the interim placement location 11 of bridge pier side supports, and be connected with bridge beam body 2 in this permanent location.
Further, bearing 9 can adopt fixed bearing or freely movable bearing, and wherein, fixed bearing allows superstructure can freely rotate but can not move horizontally at the bearing place; Freely movable bearing allows superstructure can freely rotate and can move horizontally at the bearing place.
Rotary ball hinge is as the medium that relatively rotates between construction by swing Bridge beam body 2 and bridge pier 1 top, so preferred Rotary ball hinge adopts that Mo Chali is little, stable performance, steel ball hinge that bearing capacity is high.
The invention also discloses a kind of job practices of utilizing bridge pier top body rotation structure that technique scheme provides that bridge is turned, it comprises the following steps:
Step S1: build bridge pier 1, at described bridge pier 1 top layout Rotary ball hinge;
Step S2: cast bridge beam body 2; In cast during bridge beam body 2, because Dun Ding turns lightweightly, tractive force is less, and jack counter-force seat can be set, and can reduce the quantity of the spike 7 of turning simultaneously, Dun Ding is arranged succinct, cost, and guarantee the safety of rotator construction.
Step S3: arrange turn drive unit 12 and lifting gear 14;
Step S4: the drive unit 12 of turning is connected with rotating disk 6, rotating disk 6 is rotated around the pivot center 13 that is positioned at the Rotary ball hinge circle centre position, and drive bridge beam body 2 turns to design attitude 3, at this design attitude 3, the beam body 2 after turning is connected with permanent bearing;
Step S5: by lifting gear 14 jacking bridge beam body 2 and the upper ball pivot that is connected with bridge beam body 2, ball pivot is separated with lower ball pivot, and make bridge beam body 2 bottoms satisfy the requirement of erection support 9;
Step S6: bridge beam body 2 conversions are supported in bearing 9, with fastening devicess such as bolts, bridge beam body 2 are connected with bearing 9;
Step S7: remove turn drive unit 12 and lifting gear 14.
Preferably, this job practices also comprised before step S6 by bearing slideway 10 with the step of bearing 9 from bridge pier 1 interim placement location 11 pushing tows of side supports to the permanent location that is used for supporting bridge beam body 2, as shown in Figure 4 and Figure 5.
In addition, turn complete after, Rotary ball hinge is not removed, at this moment, this Rotary ball hinge can be used as horizontal girder falling facility, has strengthened the anti-seismic performance of bridge.
Above embodiment only is used for explanation the utility model, and is not limitation of the utility model, and the those of ordinary skill in relevant technologies field in the situation that do not break away from spirit and scope of the present utility model, can also make a variety of changes and modification.Therefore all technical schemes that are equal to also belong to protection category of the present utility model.
Claims (7)
1. bridge pier top body rotation structure, comprise the drive unit of turning, lifting gear, bearing and bridge pier, be provided with Rotary ball hinge at described bridge pier top, the rotating disk that described Rotary ball hinge comprises the slideway of turning, upper ball pivot, lower ball pivot and is used for being connected with bridge beam body above upper ball pivot, it is characterized in that, this bridge pier top body rotation structure also arranges the steel casing in the upper ball pivot periphery of described Rotary ball hinge, the two ends of described steel casing respectively with described rotating disk be connected the upper ball pivot of Rotary ball hinge and be connected.
2. bridge pier top body rotation structure according to claim 1, is characterized in that, the described installation of slide track of turning is at described bridge pier top.
3. bridge pier top body rotation structure according to claim 1, is characterized in that, the described drive unit of turning is arranged on described bridge pier top.
4. bridge pier top body rotation structure according to claim 1, is characterized in that, described lifting gear is arranged on the back timber jack at described bridge pier top.
5. bridge pier top body rotation structure according to claim 1, is characterized in that, it also comprises the bearing slideway, so that described bearing slides into permanent location for supporting bridge beam body by described bearing slideway from the interim placement location of bridge pier side supports.
6. bridge pier top body rotation structure according to claim 5, is characterized in that, described bearing adopts fixed bearing or freely movable bearing.
7. the described bridge pier top body rotation structure of any one according to claim 1 to 6, is characterized in that, the described turning hinge of turning adopts the steel ball hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320213724 CN203270463U (en) | 2013-04-24 | 2013-04-24 | Bridge pier top swivel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320213724 CN203270463U (en) | 2013-04-24 | 2013-04-24 | Bridge pier top swivel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203270463U true CN203270463U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320213724 Expired - Lifetime CN203270463U (en) | 2013-04-24 | 2013-04-24 | Bridge pier top swivel structure |
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| CN (1) | CN203270463U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243657A (en) * | 2013-04-24 | 2013-08-14 | 中铁工程设计咨询集团有限公司 | Pier-top rotator structure of bridge and method for constructing connector |
| CN107964878A (en) * | 2017-12-06 | 2018-04-27 | 重庆三峡学院 | Urban Bridge wisdom rotator construction assembled beam body |
| CN108660944A (en) * | 2018-07-06 | 2018-10-16 | 重庆三峡学院 | Bridge Rotation Construction Technique method |
| CN111691316A (en) * | 2020-06-28 | 2020-09-22 | 重庆交通大学 | Shock-proof bridge structure of turning |
| CN113668408A (en) * | 2021-08-24 | 2021-11-19 | 中铁工程设计咨询集团有限公司 | Self-falling beam swivel spherical hinge |
-
2013
- 2013-04-24 CN CN 201320213724 patent/CN203270463U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103243657A (en) * | 2013-04-24 | 2013-08-14 | 中铁工程设计咨询集团有限公司 | Pier-top rotator structure of bridge and method for constructing connector |
| CN107964878A (en) * | 2017-12-06 | 2018-04-27 | 重庆三峡学院 | Urban Bridge wisdom rotator construction assembled beam body |
| CN107964878B (en) * | 2017-12-06 | 2020-02-21 | 重庆三峡学院 | City bridge wisdom changes rotation construction assembled roof beam body |
| CN108660944A (en) * | 2018-07-06 | 2018-10-16 | 重庆三峡学院 | Bridge Rotation Construction Technique method |
| CN111691316A (en) * | 2020-06-28 | 2020-09-22 | 重庆交通大学 | Shock-proof bridge structure of turning |
| CN111691316B (en) * | 2020-06-28 | 2022-02-18 | 重庆交通大学 | Shock-proof bridge structure of turning |
| CN113668408A (en) * | 2021-08-24 | 2021-11-19 | 中铁工程设计咨询集团有限公司 | Self-falling beam swivel spherical hinge |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
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| CX01 | Expiry of patent term |