CN106758825B - Oblique jacking framed bridge abnormal shape lead-in cable - Google Patents
Oblique jacking framed bridge abnormal shape lead-in cable Download PDFInfo
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- CN106758825B CN106758825B CN201611052544.8A CN201611052544A CN106758825B CN 106758825 B CN106758825 B CN 106758825B CN 201611052544 A CN201611052544 A CN 201611052544A CN 106758825 B CN106758825 B CN 106758825B
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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
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of oblique jacking framed bridge abnormal shape lead-in cable, whole face of overlooking is trapezoidal, and front end inclined-plane is parallel with railway, and rear end is connect by anchor bar with frame core-tube system, generally frame structure, and outline border is skeleton structure, and the medial and lateral of skeleton structure are welded with steel plate；Centre is the intermediate supports skeleton that crossbeam and middle standing pillar form；Front end jacking face and rear portion are welded with sealing steel plate with frame core-tube system joint face crossbeam and column.By the way that the above structure is arranged in frame core-tube system front end, in jack-in process, the horizontal lift beam end of I-steel can be overlapped on lead-in cable simultaneously, not occur span situation of different sizes, can be ensured the Strength Safety and stability of horizontal lift beam, be avoided that traffic safety accident occurs.After frame core-tube system jacking is in place, lead-in cable can overall pulling down, ensure that safety of railway traffic, improve working efficiency, while investment reduction, shortening the construction period, economic benefit and social benefit are notable.
Description
Technical field
The invention is related to a kind of oblique jacking framed bridge abnormal shape lead-in cable, belongs to bridge construction field.
Background technology
When jacking construction oblique undercrossing tunnel frame core-tube system, the horizontal lift beam hardened link of I-steel is generally used.Frame core-tube system jacking
In the process, the horizontal lift beam of I-steel is mutually overlapped with frame core-tube system front end first, when to ensure that horizontal lift beam I-steel is overlapped in frame core-tube system across
Degree will not be excessive, it is desirable that frame core-tube system front end is parallel with railway line, therefore frame core-tube system front end must be designed by oblique configuration, i.e., tiltedly
Friendship is tiltedly done.If frame core-tube system connects with adjacent segment orthohormbic structure, the changeover portion for tiltedly becoming positive must be set, framework of steel reinforcement in changeover portion
It needs to block, structure cannot be satisfied railway loading requirement.If frame core-tube system is designed as orthohormbic structure, frame core-tube system front end and iron
Road is not parallel, when the horizontal lift beam of I-steel is overlapped on frame core-tube system, causes side span larger, and other side span is smaller, span compared with
For big side I-steel under railway loading effect, deformation and intensity cannot meet code requirement.
Invention content
In order to solve the above-mentioned technical problem, the invention provides a kind of oblique jacking framed bridge abnormal shape lead-in cable,
Whole face of overlooking is trapezoidal, and front end inclined-plane is parallel with railway, and rear end is connect by anchor bar with frame core-tube system, generally frame
Structure, outline border are skeleton structure, and the medial and lateral of skeleton structure are welded with steel plate；Centre is that crossbeam and middle standing pillar form
Intermediate supports skeleton；Front end jacking face and rear portion are welded with sealing steel plate with frame core-tube system joint face crossbeam and column.By
Above structure is arranged in frame core-tube system front end, solve ordinary quaternary existing in the prior art or the existing deformation of oblique construction and
Intensity cannot meet the problem of construction technical requirement.
To achieve the goals above, the invention the technical solution adopted is that：Oblique jacking framed bridge abnormal shape lead-in cable,
It is characterized in that：It is trapezoidal that it, which integrally overlooks face, and front end inclined-plane is parallel with railway, and rear end is connected by anchor bar and frame core-tube system
It connects, generally frame structure, outline border is skeleton structure, and the medial and lateral of skeleton structure are welded with steel plate；Centre is crossbeam in
Between column form intermediate supports skeleton；Front end jacking face and rear portion are welded with sealing with frame core-tube system joint face crossbeam and column
Steel plate.
The rear end can remove after jacking is completed by anchor bar and frame core-tube system junction, make oblique top
It is detached into frame core-tube system abnormal shape lead-in cable is whole with frame core-tube system.
It is middle standing pillar among the intermediate supports skeleton, the circumferential surrounding of middle standing pillar passes through ribbed stiffener and welding with backing
It connects, thus the top of middle standing pillar, bottom form intermediate supports skeleton part by the beam welding of backing plate and corresponding position.
The skeleton structure both sides are joist steel upright, and the joist steel upright is parallel with middle standing pillar；Skeleton knot
The steel I-beam that top, the bottom of structure are provided with across both sides joist steel upright and are welded as a whole with it.
Outside plate is welded on the outside of the joist steel upright and steel I-beam, inside is welded with inside bar shaped steel
Plate.
A method of it constructs using oblique jacking framed bridge abnormal shape lead-in cable, step is：
1, welding manufacture oblique jacking framed bridge abnormal shape lead-in cable makes its whole height, width and waits for jacking framed bridge one
It causes, toe angle is adjusted setting according to frame core-tube system jacking axis and railway angle；
2, Bar Anchorage pre-buried in the anchor bar and frame core-tube system of oblique jacking framed bridge abnormal shape lead-in cable rear end is welded
It connects, an entirety is constituted with frame core-tube system；
3, the frame core-tube system that jacking carries oblique jacking framed bridge abnormal shape lead-in cable is carried out；
4, after jacking work, the oblique jacking framed bridge abnormal shape lead-in cable of overall pulling down frame core-tube system front end.
The advantageous effect of the invention is：
（1）When frame core-tube system jacking axis is with railway oblique, under conditions of frame core-tube system front end sets special-shaped lead-in cable, frame core-tube system
Orthohormbic structure may be used, solve orthohormbic structure frame core-tube system front end and railway it is not parallel caused by track strengthening I-shaped gooseneck
The excessive problem of span, while connecting with other section of orthohormbic structure convenient for frame core-tube system.
（2）Oblique jacking framed bridge abnormal shape lead-in cable is steel construction, facilitates dismounting after frame core-tube system jacking is in place.
（3）Jacking framed bridge use orthohormbic structure, eliminate for connect with other sections of orthohormbic structures be arranged it is oblique become just
Changeover portion, so that structure is met code requirement.
Description of the drawings
Fig. 1：For oblique construction plan in the prior art.
Fig. 2：For orthogonal construction plan in the prior art.
Fig. 3：For the invention construction plan.
Fig. 4：For structure of the invention vertical view.
Fig. 5：For inventive structure normal cross sectional drawing.
Fig. 6：For structure of the invention side joist steel upright partial structural diagram.
Fig. 7：For structure of the invention middle standing pillar and upper top surface partial structural diagram.
Fig. 8：For steel sheet connection structure schematic diagram inside and outside structure of the invention.
Specific implementation mode
Oblique jacking framed bridge abnormal shape lead-in cable, structure are：It is trapezoidal, front end inclined-plane and railway that it, which integrally overlooks face,
Parallel, rear end is connect by anchor bar 11 with frame core-tube system, generally frame structure, and outline border is skeleton structure, skeleton structure
Medial and lateral are welded with steel plate；Centre is the intermediate supports skeleton that crossbeam 3 and middle standing pillar 10 form；Front end jacking face is with after
Portion is welded with sealing steel plate 4 with frame core-tube system joint face crossbeam and column.
The rear end can remove after jacking is completed by anchor bar 11 and frame core-tube system junction, make oblique
Jacking framed bridge abnormal shape lead-in cable is integrally detached with frame core-tube system.
Be middle standing pillar 10 among the described intermediate supports skeleton, the circumferential surrounding of middle standing pillar 10 by ribbed stiffener 13 with
Backing plate 12 welds, and top, the bottom of middle standing pillar 10 are welded by the crossbeam 3 of backing plate 12 and corresponding position, thus form intermediate supports
Skeleton part.
The skeleton structure both sides are joist steel upright 2, and the joist steel upright 2 is parallel with middle standing pillar 10；Bone
The steel I-beam 1 that top, the bottom of frame structure are provided with across both sides joist steel upright 2 and are welded as a whole with it.
The outside of the joist steel upright 2 and steel I-beam 1 is welded with outside plate 7, and inside is welded with inside bar shaped
Steel plate 5.
Using the method that oblique jacking framed bridge abnormal shape lead-in cable is constructed, step is：
1, welding manufacture hands over jacking framed bridge abnormal shape lead-in cable, keeps its whole height, width consistent with jacking framed bridge is waited for,
Toe angle is adjusted setting according to frame core-tube system jacking axis and railway angle；
2, by Bar Anchorage pre-buried in the anchor bar 11 of oblique jacking framed bridge abnormal shape lead-in cable rear end and frame core-tube system
Welding constitutes an entirety with frame core-tube system；
3, the frame core-tube system that jacking carries oblique jacking framed bridge abnormal shape lead-in cable is carried out；
4, after jacking work, the oblique jacking framed bridge abnormal shape lead-in cable of overall pulling down frame core-tube system front end.
For oblique jacking framed bridge abnormal shape lead-in cable using joist steel upright, crossbeam as skeleton, steel pipe, I-shaped gooseneck are centre
Support, it is integral to be all made of steel plate welded closure for side inside and outside side and top surface, bottom surface I-shaped steel skeleton, and with frame structure by frame structure
Interior pre-buried reinforcement welding is integrally formed.Wherein intermediate supports skeleton can adjust spacing and number of rows according to frame core-tube system lateral dimension,
To meet the structure stress requirement of steel box top.In actual use, oblique jacking framed bridge abnormal shape lead-in cable is temporary structure, frame structure
It is dismountable after bridge jacking is in place.
The present invention sets special-shaped lead-in cable in oblique jacking framed bridge front end, and frame core-tube system uses orthohormbic structure.Lead-in cable front end
Parallel with railway, rear end is connected as entirety by anchor bar and frame core-tube system, and height, width are consistent with frame core-tube system.Lead-in cable with
Joist steel upright, crossbeam are skeleton, and steel pipe, I-shaped gooseneck are intermediate supports, inside and outside side, top surface and bottom surface I-shaped steel skeleton
Side is all made of steel plate welded closure into babinet.Lead-in cable front end is parallel with railway, in jack-in process, the horizontal lift beam end of I-steel
It can be overlapped on lead-in cable simultaneously, not occur span situation of different sizes, can ensure the Strength Safety and stabilization of horizontal lift beam
Property, it avoids that traffic safety accident occurs.After frame core-tube system jacking is in place, lead-in cable can overall pulling down, ensure that safety of railway traffic,
It improves working efficiency, while investment reduction, shortening the construction period, economic benefit and social benefit are notable.Solves oblique top simultaneously
When using orthohormbic structure into frame core-tube system, the horizontal lift girder span of track strengthening I-steel caused by frame core-tube system front end and railway are not parallel is spent
Big problem ensure that railway operation safety, while achieve the effect that facilitate construction, investment reduction, shorten the construction period.
Claims (4)
1. oblique jacking framed bridge abnormal shape lead-in cable, it is characterised in that：It is trapezoidal, front end inclined-plane and railway that it, which integrally overlooks face,
Parallel, rear end passes through anchor bar（11）It is connect with frame core-tube system, generally frame structure, outline border is skeleton structure, skeleton structure
Medial and lateral be welded with steel plate；Centre is crossbeam（3）And middle standing pillar（10）The intermediate supports skeleton of composition；Front end jacking
Face and rear portion are welded with sealing steel plate with frame core-tube system joint face crossbeam and column（4）；The rear end, passes through anchor bar
（11）With frame core-tube system junction, it can be removed after jacking is completed, make oblique jacking framed bridge abnormal shape lead-in cable entirety and frame
Structure bridge detaches；It is middle standing pillar among the intermediate supports skeleton（10）, middle standing pillar（10）Circumferential surrounding by putting more energy into
Rib（13）With backing plate（12）Welding, middle standing pillar（10）Top, bottom pass through backing plate（12）With the crossbeam of corresponding position（3）Welding,
Thus composition intermediate supports skeleton part.
2. oblique jacking framed bridge abnormal shape lead-in cable according to claim 1, it is characterised in that：The skeleton structure two
Side is joist steel upright（2）, the joist steel upright（2）With middle standing pillar（10）It is parallel；The top of skeleton structure, bottom setting
Have across both sides joist steel upright（2）And the steel I-beam being welded as a whole with it（1）.
3. oblique jacking framed bridge abnormal shape lead-in cable according to claim 2, it is characterised in that：The joist steel upright
（2）With steel I-beam（1）Outside be welded with outside plate（7）, inside is welded with inside bar steel plate（5）.
4. a kind of method constructed using oblique jacking framed bridge abnormal shape lead-in cable described in claim 1, step are：
1）, welding manufacture oblique jacking framed bridge abnormal shape lead-in cable, keep its whole height, width consistent with jacking framed bridge is waited for,
Toe angle is adjusted setting according to frame core-tube system jacking axis and railway angle；
2）, by the anchor bar of oblique jacking framed bridge abnormal shape lead-in cable rear end（11）It is welded with Bar Anchorage pre-buried in frame core-tube system
It connects, an entirety is constituted with frame core-tube system；
3）, carry out jacking carry oblique jacking framed bridge abnormal shape lead-in cable frame core-tube system；
4）, jacking work after, the oblique jacking framed bridge abnormal shape lead-in cable of overall pulling down frame core-tube system front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611052544.8A CN106758825B (en) | 2016-11-25 | 2016-11-25 | Oblique jacking framed bridge abnormal shape lead-in cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611052544.8A CN106758825B (en) | 2016-11-25 | 2016-11-25 | Oblique jacking framed bridge abnormal shape lead-in cable |
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| CN106758825A CN106758825A (en) | 2017-05-31 |
| CN106758825B true CN106758825B (en) | 2018-07-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100535392C (en) * | 2005-10-31 | 2009-09-02 | 胡麓山 | Bridge type shield construction method for box type bridge |
| KR101233695B1 (en) * | 2010-06-03 | 2013-02-15 | (주)승영기술공사 | Structure for water gathering of road with rain water leading panel |
| CN101935988B (en) * | 2010-08-24 | 2011-08-17 | 攀钢集团冶金工程技术有限公司 | Box culvert structure and jacking method of box culvert for penetrating roadbed |
| CN102154985B (en) * | 2011-02-21 | 2012-05-23 | 李家稳 | Guide shield for pushing rectangular concrete frame bridge |
| CN202055835U (en) * | 2011-05-13 | 2011-11-30 | 上海力行工程技术发展有限公司 | Segment for connecting a shield machine and transition connection device of a joint for pipe jacking method |
| CN103015333B (en) * | 2012-12-12 | 2015-07-01 | 中铁二十四局集团有限公司 | Guiding structure for culvert section jacking and jacking method using guiding structure |
| CH709433A1 (en) * | 2014-03-17 | 2015-09-30 | Die Spezialelemente Ag | Device for connecting elements, element for the construction of a channel and process for laying elements. |
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