CN101736694B - Technology of front-nose-girder anchor support of 900 bridge erecting machine for passenger railway line - Google Patents
Technology of front-nose-girder anchor support of 900 bridge erecting machine for passenger railway line Download PDFInfo
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- CN101736694B CN101736694B CN2008102267810A CN200810226781A CN101736694B CN 101736694 B CN101736694 B CN 101736694B CN 2008102267810 A CN2008102267810 A CN 2008102267810A CN 200810226781 A CN200810226781 A CN 200810226781A CN 101736694 B CN101736694 B CN 101736694B
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- anchor support
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- bridge
- bridge erecting
- erecting machine
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Abstract
The invention discloses a front-nose-girder anchor support when a 900 bridge erecting machine passes a bridge span in a passenger railway line, which is characterized in that: the front-nose-girder anchor support is processed into a box beam by utilizing a flange beam; and the box beam is welded with a support tension rod splint, and is reserved with anchor holes according to erection openings of a prestressed concrete simply supported beam of the passenger railway line. A front auxiliary nose girder of the bridge erecting machine is connected with the erected prestressed concrete simply supported beam of the passenger railway line through a bidirectional telescopic screw rod to achieve the effect of fixing legs of the bridge erecting machine so as to realize the safety and stability in a working state that the bridge erecting machine passes the bridge span. The front-nose-girder anchor support has the advantages of simple structure, low manufacturing cost, high practicability, safe and reliable operation, and high sensitivity, and can be used for various bridge erecting machines only by little changing the size of the screw rod splint; and the structure can be repeatedly utilized so as to reduce repeat waste of materials, reduce the construction difficulty of the front pilot working procedure and save project capital effectively.
Description
Technical field
The present technique invention belongs to high-speed railway Line for Passenger Transportation construction field, anchoring temporarily device when solving 900 tonnes of bridge formation machine via holes.
Background technology
During China Express Railway is being built fast now, in the construction of high-speed railway, adopt the mode of viaduct to solve the variety of issue that restricts circuit usually.In the process of building bridge,, have only by specialty bridge formation machine and construct owing to Line for Passenger Transportation precast concrete simple supported box beam volume big (beam length is 32.6m), tonnage heavy (single hole case beam quality reaches 900t).The bridge formation machine main body of using at present is divided into two parts: one is the girder part, main body when working for bridge formation frame beam; Two is the front launching nose part, for the bridge formation machine after successfully setting up a hole simple supported box beam, for crane ' s major girder reach provides support, thus the state that crane ' s major girder is reached work on.When crane ' s major girder via hole state, bridge formation machine front launching nose fixed-site need be caused unstability and causes serious accident with the machine complete machine reach that prevents to build bridge.In the construction be at present: in the Bridge Pier Construction of carrying out in advance that 8 fining twisted steels are buried in pier shaft by the mode of predetermined fixed in the anchoring scheme that adopts with the bridge formation machine.Such cost cost height because fining twisted steel is to adopt pre-buried mode to be fixed on the bridge pier, can not take out usefulness of turnover after simple supported box beam sets up, increased the input of material; Two reclaim difficulty, the material recovery that pier shaft can only be exposed in the removal process, and to adopt the mode of gas cutting, thus increased expenses of labour; Three have increased the difficulty of Bridge Pier Construction, build bridge pier concrete the time for the accuracy that guarantees the built-in fitting position has increased labour cost, because if can not guarantee that the position is accurate in the construction, then can have a strong impact on setting up of case beam.
Summary of the invention
The purpose of present technique invention is to overcome above-mentioned weak point, and a kind of simple in structure, dependable performance, easy to use, the bridge formation machine front launching nose anchor support that can have enough to meet the need use are provided.
For achieving the above object, the technical solution used in the present invention is: design and a kind of bridge formation machine of processing and fabricating front launching nose anchor support, replace pushing up at pier stud the way of pre-buried fining twisted steel.Anchor frame adopts i iron to be processed into the box girder steel, welding tie-strut clamping plate on the box girder steel, and according to Line for Passenger Transportation precast concrete simple supported box beam hole for hoist position reservation anchor hole.Utilize the bi-directional expansion screw mandrel that auxiliary nose girder before the bridge formation machine is connected with frame precast concrete simple supported box beam, can reach the fixedly effect of bridge formation machine supporting leg, thus safety and stability under the realization bridge formation machine via hole duty.The present technique beneficial effect of the invention is:
1, simple in structure, the job site makes easily, and cost is low, can utilize the building-site current material to process, and a cover anchor support expense amounts to and is no more than 5000 yuan.
2, dependable performance, the stability that front launching nose partly supports girder in the time of can satisfying 900t level bridge formation machine via hole.
3, easy to use, can utilize the existing bale handle dolly of bridge formation machine to carry out the carrying of anchor support, reduced labor strength, improved operating efficiency.
4, anchor frame can be reused, and has saved the material input.
5, shortened the cycle of setting a roof beam in place, adopted this technology can significantly reduce the bridge formation machine via hole needed time of operating mode, the cycle of setting up of every hole simple supported box beam can shorten 40～60 minutes.
Description of drawings
Fig. 1 is the positive facade of anchor support;
Fig. 2 is the anchor support vertical view;
Fig. 3 is the anchor support left view;
Fig. 4 is the anchoring pin rod;
Duty when Fig. 5 is the work of bridge formation machine employing present technique invention anchor support;
Fig. 6 is that the bridge formation machine adopts former design anchoring scheme duty.
The specific embodiment
Bridge formation machine front launching nose anchor support adopts the butt welding of 200mm type i iron to be processed into box girder steel integral body, 8 anchoring rod straps with the processing of 20mm steel plate of welding on it.Be be connected with the frame Line for Passenger Transportation precast concrete simple supported box beam anchoring screw mandrel of usefulness of anchor support, during use the anchoring screw mandrel is passed the preformed hole of anchor frame and the hole for hoist of Line for Passenger Transportation precast concrete simple supported box beam, utilize bolt that anchor support and Line for Passenger Transportation precast concrete simple supported box beam are locked together.Rear end face at bridge formation machine front launching nose welds the leading screw strap simultaneously, and makes it corresponding with strap position on the anchor support.In the enforcement, utilize the bi-directional expansion leading screw that to have bought on the market that the strap on the bridge formation machine front launching nose is connected with anchor support.
The present technique invention has been verified its service behaviour through the practical application of Zheng Xi Line for Passenger Transportation high-speed railway JQ900 type bridge formation machine.The stability and the safety of the work of bridge formation machine have been improved.An anchoring temporarily difficult problem had been saved engineering cost greatly when this anchor support had successfully solved bridge formation machine front launching nose via hole, made simply, was applicable to the bridge formation machine of similar model, and employing is worthy to be popularized.
Claims (1)
1. method of utilizing anchor support anchoring bridge formation machine front launching nose, it is characterized in that anchor support is processed into the box girder steel by the i iron butt welding, welding anchoring rod strap on it, and according to precast concrete simple supported box beam hole for hoist position reservation anchor hole, during use the anchoring screw mandrel passed the reservation anchor hole of anchor support and the hole for hoist of precast concrete simple supported box beam, utilize bolt that anchor support and concrete simple supported box beam are locked together, at the rear end face of bridge formation machine front launching nose welding screw mandrel strap, and make it corresponding and the strap on the bridge formation machine front launching nose is connected with anchor support with the bi-directional expansion leading screw with strap position on the anchor support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102267810A CN101736694B (en) | 2008-11-24 | 2008-11-24 | Technology of front-nose-girder anchor support of 900 bridge erecting machine for passenger railway line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102267810A CN101736694B (en) | 2008-11-24 | 2008-11-24 | Technology of front-nose-girder anchor support of 900 bridge erecting machine for passenger railway line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101736694A CN101736694A (en) | 2010-06-16 |
| CN101736694B true CN101736694B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102267810A Active CN101736694B (en) | 2008-11-24 | 2008-11-24 | Technology of front-nose-girder anchor support of 900 bridge erecting machine for passenger railway line |
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| CN (1) | CN101736694B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590342B (en) * | 2012-08-16 | 2016-09-14 | 秦皇岛天业通联重工科技有限公司 | The system of getting off of the bridge formation unit of a kind of anti-hypsokinesis and utilize its method carrying out building bridge |
| CN115094776B (en) * | 2022-07-27 | 2023-02-28 | 中铁二局集团有限公司 | Method for anchoring supporting legs of bridge girder erection machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570319Y (en) * | 2002-09-10 | 2003-09-03 | 同济大学 | Transferring control device of tied arch bridge hanger rod changing |
| CN2675729Y (en) * | 2003-12-19 | 2005-02-02 | 秦皇岛市北戴河通联路桥机械有限公司 | Double guiding-beam bridge-laying machine for high-speed railway |
| CN2742026Y (en) * | 2004-11-20 | 2005-11-23 | 秦皇岛市北戴河通联路桥机械有限公司 | One gap type top guide beam moving mould frame bridge making machine |
| CN201053105Y (en) * | 2007-04-17 | 2008-04-30 | 郭文学 | Equal span self-balancing bridging machine |
| CN101250854A (en) * | 2007-12-05 | 2008-08-27 | 中铁大桥局股份有限公司 | Large span double-linear-box beam bunching-frame method construction bridging machine |
-
2008
- 2008-11-24 CN CN2008102267810A patent/CN101736694B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570319Y (en) * | 2002-09-10 | 2003-09-03 | 同济大学 | Transferring control device of tied arch bridge hanger rod changing |
| CN2675729Y (en) * | 2003-12-19 | 2005-02-02 | 秦皇岛市北戴河通联路桥机械有限公司 | Double guiding-beam bridge-laying machine for high-speed railway |
| CN2742026Y (en) * | 2004-11-20 | 2005-11-23 | 秦皇岛市北戴河通联路桥机械有限公司 | One gap type top guide beam moving mould frame bridge making machine |
| CN201053105Y (en) * | 2007-04-17 | 2008-04-30 | 郭文学 | Equal span self-balancing bridging machine |
| CN101250854A (en) * | 2007-12-05 | 2008-08-27 | 中铁大桥局股份有限公司 | Large span double-linear-box beam bunching-frame method construction bridging machine |
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| CN101736694A (en) | 2010-06-16 |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: THE 4TH ENGINEERING CO., LTD. OF CHINA RAILWAY 16T |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20110929 Address after: 100018 Beijing city Chaoyang District No. 2 North Pine dam Park Applicant after: China Railway Construction Engineering Bureau No.16 Group Corp., Ltd. Co-applicant after: China Railway 16th Bureau Group Fourth Engineering Co., Ltd. Address before: 100018 Beijing city Chaoyang District No. 2 North Pine dam Park Applicant before: China Railway Construction Engineering Bureau No.16 Group Corp., Ltd. |
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