CN201106155Y - Inclined guy cable auxiliary full cantaliver crane trussed steel beam device - Google Patents
Inclined guy cable auxiliary full cantaliver crane trussed steel beam device Download PDFInfo
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- CN201106155Y CN201106155Y CNU200720046517XU CN200720046517U CN201106155Y CN 201106155 Y CN201106155 Y CN 201106155Y CN U200720046517X U CNU200720046517X U CN U200720046517XU CN 200720046517 U CN200720046517 U CN 200720046517U CN 201106155 Y CN201106155 Y CN 201106155Y
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Abstract
The utility model relates to an oblique bracing cord auxiliary full cantilever erection steel truss device which is characterized in that the device comprises a beam-transporting trestle, a beam-transporting trolley, a lifting station high gantry crane, a full circle girder erecting crane, a frontage oblique bracing cord and a sling tower; wherein, the beam-transporting trolley is arranged on the beam-transporting trestle; steel truss bars are conveyed onto the beam-transporting trolley by the lifting station high gantry crane; a steel truss frame is arranged on a pier; a first hole steel beam is assembled on a falsework; the full circle girder erecting crane travels on a boom bar of the steel truss; a tower crane is assembled onto the first hole steel truss; the center of the sling tower is positioned on the central line of the pier; the upper end of the oblique bracing cord is connected with an anchoring beam of the tower top of the sling tower through an upper anchor box on the oblique bracing cord. The oblique bracing cord auxiliary full cantilever erection steel truss device has the advantages that as to large span continuous steel trusses, a special device auxiliary frame can be used for erecting multi-span steel trusses, which can reduce internal force in installing the steel truss bars, deflection of a frontage cantilever end and enhance side-tipping stability of a cantilever steel truss. The oblique bracing cord auxiliary full cantilever erection steel truss device also has the advantages of small investment, short period and convenient operation.
Description
Technical field
The utility model relates to a kind of railway or highway steel truss beam bridge erecting steel trusses by stay cable auxiliary complete cantilever device.Belong to steel truss girder erection construction technical field.
Background technology
In the prior art, the construction technology that large-span continuous steel truss girder in the water (or the first continuously multispan steel truss girder of back freely-supported, down with) sets up mainly contain full erection by protrusion, preceding square pier build accept the carriage method, establish interim pier semi-cantilever assembly unit method, the auxiliary full erection by protrusion of suspension cable.These several job practicess respectively have its applicable scope and characteristics.As full erection by protrusion, this job practices is applicable to that the assembly unit of the multispan continuous steel girder (the same) of medium and small span sets up.Because girder steel is in full cantilever position, requires the rigidity of steel truss girder enough big.But when the span of girder steel arrived to a certain degree greatly, the required rigidity of steel truss girder will strengthen, and directly caused the weight of single girder steel rod member to increase, and the specification of the used girder erection crane of assembly unit girder steel strengthens, and loop wheel machine deadweight simultaneously also will strengthen.Improve the design standard of girder steel so conversely again.
And for example build the carriage method of accepting, this job practices is applicable to that also the assembly unit of the multispan continuous steel girder (the same) of middle span sets up.The principle of this method is in order to reduce truss internal force and semi-girder end amount of deflection, and the bridge pier place builds pier-side bracket forwardly, and is supported in advance when making the nearby square bridge pier of semi-girder termination, is limited but pier-side bracket is subjected to the restriction boom reach of bridge pier structure.
Establish interim pier semi-cantilever assembly unit method for another example, this job practices is suitable for the assembly unit of the continuous steel girder that all spans, less hole stride and sets up.The principle of this method is to build interim pier in the centre (or 1/3 span place) of striding of waiting to build bridge to make girder steel supported as early as possible, reduces the amount of deflection of semi-girder end.Interim pier in the water generally adopts driven pile or drilled pile basis, and interim Dun Ding is provided with top, move the jack of beam and Sliding Structures etc., with guarantee girder steel can accurately adjust when preceding square pier pushes up in assembly unit, in place.In the large-span steel trusses because big from heavy load, middle interim pier stressed approximates whole girder steel deadweight and the working load (be equivalent to permanent pier shaft structure stress about 50%) of striding, enough operating spaces are arranged when transferring beam for the stable and Dun Ding that guarantees structure simultaneously, must adopt multi-column pier foundation, the sedimentation on basis also must be in controlled range.Interim pier also must be set up defences and be hit facility in the water, to guarantee safety of construction and stability of structure.When the depth of water is bigger, during place, pier position geological conditions difference, cover bed thickness, layer of sand covering bed thickness etc. and wash away big riverbed as tabula rasa rock river bed, mud, interim pier then must adopt the drilled pile multi-column pier foundation.Steel girder erection finishes, and drilled pile then must be done underwater demolition and remove, and steel pipe pile then must be pulled out, in order to avoid influence the navigation channel.Striding of girder steel is several many more, and the input of its interim pier will be big more.
But along with the increase of girder steel span, the load of middle interim pier strengthens, especially for large span, The water is deep and the current fast, and the riverbed geological conditions is poor, the difficulty of design and construction of the interim pier difficulty of construction on the permanent pier shaft of fundamental sum basis is suitable, its input will sharply strengthen.
Summary of the invention
The utility model is railway or highway steel truss beam bridge erecting steel trusses by stay cable auxiliary complete cantilever device, is intended to solve above-mentioned existing in prior technology defective, and it is applicable to setting up multiple multispan freely-supported or continuous steel girder and large-span steel truss arched bridge of striding the footpath.
Technical solution of the present utility model: its structure is to comprise fortune beam trestle, beam transportation vehicle, the overhead gantry crane in lifting station, full circle swinging girder erection crane, the place ahead suspension cable and tower with suspended cable; Wherein beam transportation vehicle is on fortune beam trestle, steel girder member bar is lifted on beam transportation vehicle with promoting the overhead gantry crane in station, steel truss girder is erected on the bridge pier, first hole girder steel assembly unit on falsework, the traveling on the steel truss girder upper chord of full circle swinging girder erection crane, tower crane is assembled on the first hole steel truss girder, and tower with suspended cable is centered close on the bridge pier center line, and the suspension cable upper end links to each other with tower with suspended cable cat head anchoring beam by anchor case on the suspension cable.
Advantage of the present utility model:
1,, adopt the tower with suspended cable that is provided with running mechanism to hang the auxiliary full cantilever erection of suspension cable, so that set up the multispan steel truss girder with a special equipment to large-span continuous steel truss girder.
2, have installation internal force, the amount of deflection that reduces the place ahead semi-girder end that reduces steel girder member bar, the roll stability that increases the semi-girder steel truss girder.
3, has the advantage that the temporary structure construction period is short, invest little (only can use multispan with a tower with suspended cable).When the individual layer suspension cable being set still can not satisfying the requirement of steel truss girder design rod member internal force, 2 layers or multilayer diagonal rope auxiliary construction can also be set as span is bigger.
When 4, adopting the individual layer suspension cable, each rope promptly is stretched to 1.3 times tension test of design load before dispatching from the factory, and eliminates the non-resilient elongation of suspension cable, and carries out the long accurate demarcation of rope under this tension force effect.After suspension cable is hung rope, make every rope length length unanimity under no state of tension, directly rise the pretension that the tower with suspended cable center stand column applies suspension cable again according to design rope length, easy to operate.
Description of drawings
Accompanying drawing 1 is that overhead gantry crane and girder erection crane set up first hole girder steel schematic diagram.
Accompanying drawing 2 is tower with suspended cable scheme of installations on the girder steel of first hole.
Accompanying drawing 3 is the auxiliary full cantilever erection second hole girder steel schematic diagrames of suspension cable.
Accompanying drawing 4 is individual layer tower with suspended cable structural representations.
Accompanying drawing 5 is the A-A cut-away views among Fig. 4.
Above-mentioned each figure is to be example with the individual layer tower with suspended cable scheme of setting a roof beam in place.
Among the figure 1 is fortune beam trestle, the 2nd, beam transportation vehicle, the 3rd, girder steel promotes the overhead gantry crane in station, the 4th, the 0# bridge pier, the 5th, the 1# bridge pier, the 6th, the 2# bridge pier, 7 is first hole girder steel falseworks, the 8th, the girder steel upper chord, the 9th, the interim montant of girder steel, the 10th, the tower with suspended cable walking rails, the 11st, the full circle swinging girder erection crane, the 12nd, tower crane, the 13rd, temporary support, the 14th, case casts anchor before the suspension cable, the 15th, girder steel front nodal point otic placode, the 16th, case casts anchor behind the suspension cable, the 17th, girder steel posterior nodal point otic placode, the 18th, anchor case on the suspension cable, the 19th, anchor beam on the tower with suspended cable, the 20th, the place ahead suspension cable, 20 ' is the rear suspension cable, the 21st, the tower with suspended cable auxiliary girder, the 22nd, the tower with suspended cable center stand column, the 23rd, the tower with suspended cable upper branching holder, the 24th, tower with suspended cable top lifting equipment, the 25th, tower with suspended cable lower support seat, the 26th, the tower with suspended cable running mechanism.
The specific embodiment
The core of erecting steel trusses by stay cable auxiliary complete cantilever method is: utilize powerful suspension cable is set on the steel framework produces huge pulling force after stretch-draw, make its horizontal component produce pressure to upper chord, offset the pulling force that the part upper chord produces in cantilever erection; And the vertical stress component that makes progress is opposite with girder steel deadweight direction, and lower chord erection stress on the girder steel is all had the off-load effect, reduces the amount of deflection of semi-girder end simultaneously, the large-span steel trusses can be set up safely in the design stress scope of rod member finish.
Claims (2)
1, erecting steel trusses by stay cable auxiliary complete cantilever device is characterized in that comprising fortune beam trestle, beam transportation vehicle, the overhead gantry crane in lifting station, full circle swinging girder erection crane, the place ahead suspension cable and tower with suspended cable; Wherein beam transportation vehicle is on fortune beam trestle, steel girder member bar is lifted on beam transportation vehicle with promoting the overhead gantry crane in station, steel truss girder is erected on the bridge pier, first hole girder steel assembly unit on falsework, the traveling on the steel truss girder upper chord of full circle swinging girder erection crane, tower crane is assembled on the first hole steel truss girder, and tower with suspended cable is centered close on the bridge pier center line, and the suspension cable upper end links to each other with tower with suspended cable cat head anchoring beam by anchor case on the suspension cable.
2, erecting steel trusses by stay cable auxiliary complete cantilever according to claim 1 system, it is characterized in that described tower with suspended cable comprises the pylon auxiliary girder, tower center vertical column, upper branching holder, the lower support seat, the place ahead suspension cable, the rear suspension cable, case casts anchor before the suspension cable, case casts anchor behind the suspension cable, anchor case on the suspension cable, cat head anchoring beam and running mechanism, wherein suspension cable lower end in the place ahead is anchored in the case that casts anchor before the suspension cable, the case that casts anchor before the suspension cable links to each other with girder steel front nodal point otic placode again, suspension cable upper end in the place ahead is anchored on the suspension cable in the anchor case, the anchor case links to each other with cat head anchoring beam again on the suspension cable, suspension cable lower end, rear is anchored at suspension cable and casts anchor in the case, the suspension cable case that casts anchor links to each other with girder steel posterior nodal point otic placode again, suspension cable upper end in rear is anchored on the suspension cable in the anchor case, and the anchor case links to each other with cat head anchoring beam again on the suspension cable; Cat head anchoring beam seat drops on the top of tower with suspended cable center stand column, the tower with suspended cable auxiliary girder is linked to be the whole common power transmission framework that forms with four tower center staking outs, establish tower with suspended cable top lifting jack between tower with suspended cable upper branching holder and lower support seat, the tower with suspended cable auxiliary girder links to each other with the tower with suspended cable running mechanism, and the tower with suspended cable running mechanism is on the tower with suspended cable walking rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720046517XU CN201106155Y (en) | 2007-10-16 | 2007-10-16 | Inclined guy cable auxiliary full cantaliver crane trussed steel beam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720046517XU CN201106155Y (en) | 2007-10-16 | 2007-10-16 | Inclined guy cable auxiliary full cantaliver crane trussed steel beam device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106155Y true CN201106155Y (en) | 2008-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720046517XU Expired - Lifetime CN201106155Y (en) | 2007-10-16 | 2007-10-16 | Inclined guy cable auxiliary full cantaliver crane trussed steel beam device |
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| CN (1) | CN201106155Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691741B (en) * | 2008-12-25 | 2011-04-06 | 中铁大桥局股份有限公司 | Bi-directional adjustable post-installed anchor device used for erecting steel cantilever beam |
| CN102433844A (en) * | 2011-09-26 | 2012-05-02 | 中交四航局第一工程有限公司 | Cantilever beam hoisting system of trestle and construction system and method for erecting prefabricated beam of bridge deck |
| CN105544413A (en) * | 2015-12-11 | 2016-05-04 | 中铁大桥局集团有限公司 | Stay rope type girder erection crane for erecting cable-stayed bridge steel truss girders and construction method |
| CN107489103A (en) * | 2017-08-08 | 2017-12-19 | 云南公投建设集团第六工程有限公司 | Large-span Steel Box Beam tower with suspended cable aids in push construction method |
| CN110468721A (en) * | 2019-08-29 | 2019-11-19 | 中铁大桥局集团有限公司 | A kind of large span trestle Cantilever Construction Method |
| CN110872807A (en) * | 2018-09-04 | 2020-03-10 | 宏润建设集团股份有限公司 | Construction method of steel temporary bridge and steel temporary bridge |
| CN110904860A (en) * | 2019-11-07 | 2020-03-24 | 中铁大桥局集团第一工程有限公司 | Large-span flexible steel beam pushing construction method based on stay cable assistance |
| CN112323657A (en) * | 2020-10-30 | 2021-02-05 | 中铁大桥局集团有限公司 | Integrated prefabricated bridge dismantling machine and prefabricated bridge dismantling method |
| CN113308997A (en) * | 2021-05-07 | 2021-08-27 | 中交路桥华南工程有限公司 | Three-span cable crane for mounting main beam of cable-stayed bridge and construction method thereof |
-
2007
- 2007-10-16 CN CNU200720046517XU patent/CN201106155Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691741B (en) * | 2008-12-25 | 2011-04-06 | 中铁大桥局股份有限公司 | Bi-directional adjustable post-installed anchor device used for erecting steel cantilever beam |
| CN102433844A (en) * | 2011-09-26 | 2012-05-02 | 中交四航局第一工程有限公司 | Cantilever beam hoisting system of trestle and construction system and method for erecting prefabricated beam of bridge deck |
| CN102433844B (en) * | 2011-09-26 | 2014-08-06 | 中交四航局第一工程有限公司 | Method for erecting prefabricated beam of bridge deck |
| CN105544413A (en) * | 2015-12-11 | 2016-05-04 | 中铁大桥局集团有限公司 | Stay rope type girder erection crane for erecting cable-stayed bridge steel truss girders and construction method |
| CN107489103A (en) * | 2017-08-08 | 2017-12-19 | 云南公投建设集团第六工程有限公司 | Large-span Steel Box Beam tower with suspended cable aids in push construction method |
| CN110872807A (en) * | 2018-09-04 | 2020-03-10 | 宏润建设集团股份有限公司 | Construction method of steel temporary bridge and steel temporary bridge |
| CN110468721A (en) * | 2019-08-29 | 2019-11-19 | 中铁大桥局集团有限公司 | A kind of large span trestle Cantilever Construction Method |
| CN110468721B (en) * | 2019-08-29 | 2021-04-20 | 中铁大桥局集团有限公司 | Large-span trestle cantilever construction method |
| CN110904860A (en) * | 2019-11-07 | 2020-03-24 | 中铁大桥局集团第一工程有限公司 | Large-span flexible steel beam pushing construction method based on stay cable assistance |
| CN110904860B (en) * | 2019-11-07 | 2022-02-01 | 中铁大桥局集团第一工程有限公司 | Large-span flexible steel beam pushing construction method based on stay cable assistance |
| CN112323657A (en) * | 2020-10-30 | 2021-02-05 | 中铁大桥局集团有限公司 | Integrated prefabricated bridge dismantling machine and prefabricated bridge dismantling method |
| CN113308997A (en) * | 2021-05-07 | 2021-08-27 | 中交路桥华南工程有限公司 | Three-span cable crane for mounting main beam of cable-stayed bridge and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071016 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |