CN104032668B - Half-through steel purlin-Combined concrete continuous steel frame bridge - Google Patents
Half-through steel purlin-Combined concrete continuous steel frame bridge Download PDFInfo
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- CN104032668B CN104032668B CN201410263628.0A CN201410263628A CN104032668B CN 104032668 B CN104032668 B CN 104032668B CN 201410263628 A CN201410263628 A CN 201410263628A CN 104032668 B CN104032668 B CN 104032668B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 93
- 239000010959 steel Substances 0.000 title claims abstract description 93
- 239000004567 concrete Substances 0.000 title claims abstract description 91
- 238000010276 construction Methods 0.000 claims abstract description 31
- 238000007665 sagging Methods 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 25
- 238000005452 bending Methods 0.000 claims description 24
- 239000011178 precast concrete Substances 0.000 claims description 16
- 230000010412 perfusion Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000011513 prestressed concrete Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
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Abstract
The invention discloses a kind of half-through steel purlin-Combined concrete continuous steel frame bridge, comprise the main truss beam that Steel Truss Beam forms, Steel Truss Beam is equipped with top boom, middle chord member and lower boom; Between middle chord member, there is concrete bridge guidance tape and form steel case-concrete combined structure; Concrete bridge guidance tape of the present invention is located at middle chord member place, the top boom tension of this continuous rigid frame bridge pier top negative moment area girder, and lower boom pressurized, concrete bridge guidance tape is positioned at compressive region substantially; The middle chord member of the sagging moment section girder of continuous rigid frame bridge and with concrete bridge road board combining structure be clear and definite compressive region, lower boom is clear and definite tensile region, has fundamentally avoided the problem of concrete bridge guidance tape crack in tension; Bridge superstructure adopts prefabricated construction, and the reduction of erection time, each construction link and quality are all easy to control, and bridge force-bearing is clear and definite, and construction safety is quick.
Description
Technical field
The invention belongs to science of bridge building field, particularly a kind of half-through steel purlin-Combined concrete continuous steel frameBridge.
Background technology
Continuous rigid frame bridge grows up in the firm structure of T shape and two kinds of bridge construction technical foundation of continuous beam, all belongs toBeam bridge system, its configuration is simple, and V-arrangement river valley is had to good adaptability, and its girder is flexural member,Main beam is continuous, beam pier is fixed, has both kept jointless, the smooth-going advantage of driving a vehicle in continuous beam total length, againKeep T-shaped rigid frame bridge not establish bearing, do not need the advantage of converting system, be convenient to cantilever construction, have largerBending resistance and torsional rigidity, can meet the force request of large span bridge. Integrality performance of the structure is good, antidetonation energyPower is strong, pontic brevity and lucidity, has good serviceability. The segmented cantilever that continuous rigid frame bridge adopts watersNote or free cantilever erection construction method, require lowlyer to construction site, technical maturity, security are higher, therebyBe widely used.
But conventional concrete continuous rigid frame bridge is deposited many shortcomings that is difficult to overcome, and is mainly manifested in: along with bridgeThe increase in girder span footpath, girder deadweight enlarges markedly, and has greatly limited concrete continuous rigid frame bridge to more greatly across footpathThe possibility of bridge development; Construction time is long, construction link is many, concrete material unstable properties and bending pre-The long bundle of stress construction deviation is difficult to avoid, cause later concrete contraction, creep and loss of prestress is difficult toHold, easily make the design ideal state of bridge and Cheng Qiaohou virtual condition have obvious deviation, thereby produce knotThe diseases such as structure crack and Long-term Deflection are excessive; For addressing the above problem, application number is 200910104675.XChinese patent application discloses a kind of steel purlin-concrete combined continuous rigid frame bridge, and this bridge substructure connects with ordinary concreteContinuous rigid frame bridge form is identical, and superstructure is the steel reinforced concrete group being combined by Steel Truss Beam and prefabricated bridge guidance tapeClose structure, and apply appropriate prestressing force in good time by stages, given full play to the material advantage of steel and concrete, makeGirder deadweight significantly reduces with respect to conventional prestressed concrete beam, and substructure size and foundation bearing capacity require phaseShould reduce, can be applicable to the construction of large span continuous rigid frame bridge; But its pier top section concrete bridge guidance tapeStill there is crack in tension problem, post-tensioned prestressing bundle must be set in bridge guidance tape, to overcome crack in tension problem,The complexity of structure and the difficulty of construction are increased thus. On published steel purlin-concrete combined continuous rigid frame bridge belongs toHold formula bridge, be applicable to constructionheightofbridge without the strict condition limiting.
Chinese patent ZL201210024341.3 discloses a kind of Through Steel purlin-Combined concrete continuous steel frameBridge, the combining structure that adopts Steel Truss Beam and concrete bridge guidance tape to combine, concrete bridge guidance tape be positioned at steel purlin underBetween chord member, can realize easily the connection of prefabricated bridge guidance tape and steel purlin lower boom by cast-in-place concrete,Its structure can be brought into play the tension advantage of steel and the resistance to compression advantage of concrete at pier top section, due to main beam concreteAll adopt prefabricated bridge guidance tape, the disease hidden danger being caused by concrete shrinkage and creep is reduced, be applicable under bridgeThe situation that Clearance requirement is high. But still there is crack in tension problem in its span centre section concrete bridge guidance tape, must jackshaftPost-tensioned prestressing bundle is set in guidance tape, overcoming crack in tension problem, increased thus structure complexity andThe difficulty of construction; Another its more than bridge guidance tape building height is large, to a certain extent also limit value its use modelEnclose.
Therefore, need to further improve bridge structure, more can give full play to steel purlin-concrete with respect to prior artThe all advantages of combined continuous rigid frame bridge, gives full play to the mutual coordinative role of steel purlin-concrete, further simplifies knotStructure structure and construction technology, easy to control the quality, make structure stress more rationally clear and definite.
Summary of the invention
In view of this, the object of this invention is to provide a kind of half-through steel purlin-Combined concrete continuous steel frame bridge,More can give full play to all advantages of steel purlin-concrete combined continuous rigid frame bridge with respect to prior art, give full play to steelThe mutual coordinative role of purlin-concrete, further simplified structure structure and construction technology, easy to control the quality, and structure is subject toPower is more rationally clear and definite.
Half-through steel purlin-Combined concrete continuous steel frame bridge of the present invention, comprises main truss beam, described main truss beam byThe Steel Truss Beam that at least two Pin parallel longitudinals arrange forms, Steel Truss Beam be equipped with top boom, middle chord member and underChord member;
Between top boom and middle chord member and between middle chord member and lower boom, connect by web member separately respectively,The concrete bridge guidance tape that is connected between the middle chord member of adjacent steel girder truss forms steel case-concrete combined structure, and this is mixedSolidifying native bridge guidance tape is cast-in-place shaping concrete bridge guidance tape or the cast-in-place concrete prefabricated bridge guidance tape that is connected.
Further, described top boom is reduced to longitudinal both sides gradually by bridge pier, and extends to main truss joist support and be just subject toIn the beam section of moment of flexure, be reduced to middle chord member and be fixedly connected with middle chord member;
Further, between the top boom of adjacent steel girder truss, corresponding setting between middle chord member and between lower boomThere are top bracing, middle lateral and bottom lateral bracing;
Further, described top boom, middle chord member and lower boom are hollow-core construction; Described main truss joist support is bornMoment of flexure beam section top boom arranges longitudinal prestressing steel bundle with the lower boom inside of bearing sagging moment beam section; Bear negativeConcrete perfusion in the lower boom of moment of flexure beam section;
Further, the side that middle chord member and concrete bridge guidance tape connect arranges WELDING STUDS along overall length of bridge;
Further, the upper horizontal bridge reinforcing bar both ends downward bending of building in concrete bridge guidance tape, lower horizontal bridgeThe upwards bending of reinforcing bar both ends, the downward bending portion at upper horizontal bridge reinforcing bar both ends and lower horizontal bridge reinforcing bar two endsThe upwards bending part of portion forms staggered up and down structure;
Further, between the middle chord member of adjacent steel girder truss, lay precast concrete bridge guidance tape, prefabricated coagulationThe longitudinal seam cast-in-place concrete of soil bridge guidance tape transverse ends and middle chord member side steel plate is connected;
Further, precast concrete bridge road is stretched out at the upper horizontal bridge reinforcing bar both ends in precast concrete bridge guidance tapePlate and to external part subordinate bending, precast concrete bridge guidance tape is stretched out and to stretching out in lower horizontal bridge reinforcing bar both endsBending on end, the downward bending portion at upper horizontal bridge reinforcing bar both ends and lower horizontal bridge reinforcing bar both ends are upwardsBending part forms staggered up and down structure;
Further, the transverse joint concrete between cast in situs precast concrete bridge guidance tape, builds deck pavingConcrete;
Further, form the oblique support of lateral cross between adjacent steel girder truss, these oblique support two ends are solidBe connected in corresponding middle chord member and lower boom.
The invention has the beneficial effects as follows: half-through steel purlin-Combined concrete continuous steel frame bridge of the present invention, steel purlinBy middle chord member, lower boom and between web member form the equal altitudes standard steel purlin of arranging along full-bridge length, be positioned atThe top boom of pier top section, middle chord member and between web member be formed in partial section And of Varying Depth on standard steel purlinSteel purlin structure, concrete bridge guidance tape is located at middle chord member place, this continuous rigid frame bridge pier top negative moment area girderTop boom tension, lower boom (interior concrete perfusion) pressurized, concrete bridge guidance tape is positioned at compressive region substantially;The middle chord member of the sagging moment section girder of continuous rigid frame bridge and with concrete bridge road board combining structure be clear and definiteCompressive region, lower boom is clear and definite tensile region, has fundamentally avoided asking of concrete bridge guidance tape crack in tensionTopic; Bridge guidance tape all can cast in situs, but preferably adopt precast slab, can obviously reduce concrete shrinkageCreep and draw the adverse effect to bridge structure. Compared with existing PC continuous rigid frame bridge, both fully sent outWave the tension advantage of steel and the resistance to compression advantage of concrete, and the two is coordinated mutually, avoided concrete crack in tensionCause with shrinkage and creep the disease hidden danger that Long-term Deflection is excessive, make the long-term structural behaviour of bridge more reliable;The deadweight of main beam structure be can significantly reduce again, bridge pier and foundation structure size made and to ground requirement for bearing capacity phaseShould reduce, be conducive to the development of large span continuous rigid frame bridge; Bridge superstructure adopts prefabricated construction,Avoid conventional prestressed concrete continuous rigid frame bridge to need large-tonnage cantilever to hang the frame under the varying environment of indigo plant, thousands of timesShuttering, reinforcing bar binding, Cast-in-place concrete, the long bundle installation of bending long prestressing force and stretch-draw anchor etc. are a series of hugeEquipment and complicated technology, the reduction of erection time, each construction link and quality are all easy to control, and bridge force-bearing is clear and definite, andConstruction safety is quick.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is bridge structure schematic diagram of the present invention;
Fig. 2 is that Fig. 1 is along A-A to cutaway view;
Fig. 3 is Fig. 2 C place enlarged drawing;
Fig. 4 is that Fig. 1 is along B-B to cutaway view.
Detailed description of the invention
Fig. 1 is bridge structure schematic diagram of the present invention, Fig. 2 be Fig. 1 along A-A to cutaway view, Fig. 3 is Fig. 2 CPlace's enlarged drawing, Fig. 4 be Fig. 1 along B-B to cutaway view, as shown in the figure, the half-through steel purlin of the present embodiment-mixedContinuous steel frame bridge closes in solidifying local soil type, comprises main truss beam, the steel that described main truss beam is arranged by least two Pin parallel longitudinalsGirder truss forms, and Steel Truss Beam is equipped with top boom 1, middle chord member 2 and lower boom 3;
Between top boom 1 and middle chord member 2 and between middle chord member 2 and lower boom 3, pass through respectively abdomen separatelyBar connects, and the concrete bridge guidance tape 9 that is connected between the middle chord member 2 of adjacent steel girder truss forms steel case-coagulation local soil typeClose structure, this concrete bridge guidance tape 9 is cast-in-place shaping concrete bridge guidance tape or the cast-in-place concrete prefabricated bridge that is connectedGuidance tape.
In the present embodiment, described top boom 1 is reduced to longitudinal both sides gradually by bridge pier, and extends to main truss beamBear in the beam section of sagging moment and be reduced to middle chord member and be fixedly connected with middle chord member; Meet the stressed of top boom 1Curve, and be fixedly connected with middle chord member 2 entering sagging moment region, smooth pulling force formed, major partCounteracting sagging moment region in chord member and the bridge floor compression of bearing; Said structure make middle chord member, underChord member and between web member form along full-bridge length arrange equal altitudes standard steel purlin, be positioned at the upper of pier top sectionChord member, middle chord member and between web member be formed in the steel purlin structure of partial section And of Varying Depth on standard steel purlin,Overall appearance smoothness, stressed effect is good.
In the present embodiment, corresponding between the top boom of adjacent steel girder truss, between middle chord member and between lower boomBe provided with top bracing 7, middle lateral 8 and bottom lateral bracing 9, i.e. the lateral ties of level; Lateral ties refer toThe transverse connection structure being fixedly connected with between chord member 1, between middle chord member 2 and between lower boom 3, to protectStable syndeton between card Steel Truss Beam; Top bracing 7, middle lateral 8 and bottom lateral bracing 10 and montant 5,Brace 4 can and top boom 1, middle chord member 2 and lower boom 3 between adopt welding form girder, also can adopt itHis syndeton, does not repeat them here;
In the present embodiment, described top boom 1, middle chord member 2 and lower boom 3 are hollow-core construction; Described main trussJoist support is subject to hogging moment beam section top boom 1 and lower boom 3 inside of bearing sagging moment beam section that longitudinal prestressing is setSteel bundle; Bear the interior concrete perfusion of lower boom 3 of hogging moment beam section; At the root in tension chord that is subject to of Steel Truss BeamAccording to stressing conditions, prestressed strand is set, in compression boom concrete perfusion to improve its resistance to compression bearing capacity,Thereby improve overall stress-bearing capability; As the middle chord member of laying concrete bridge guidance tape, because existence is winded upBar and lower boom, force-bearing situation is good, does not need to process through strengthening; Certainly, also can be according to strengthening needsConcrete perfusion in the middle chord member in span centre region, increases its intensity, particularly to the large bridge across footpath moreFor practicality; Thereby effectively reduce the weight of main truss beam and even whole bridge; Top boom 1, middle chord member 2 and lower edgeBar 3 complements each other, and jointly bears suffered load, and tension and compression distribute rationally and load distributes adapts with structure,Thereby, can improve Steel Truss Beam and bear the ability of moment of flexure.
In the present embodiment, middle chord member 2 arranges shearing with the side that concrete bridge guidance tape 9 connects along overall length of bridgeNail 13, forms shear connector, is beneficial to the bonding strength that improves concrete bridge guidance tape, further improves steel case-coagulationGlobality and the uniformity of soil combining structure.
In the present embodiment, the upper horizontal bridge reinforcing bar both ends downward bending of building in concrete bridge guidance tape 9, underLaterally upwards bending of bridge reinforcing bar both ends, the downward bending portion at upper horizontal bridge reinforcing bar both ends and lower horizontal bridge steelThe upwards bending part at muscle both ends forms staggered up and down structure; As shown in the figure, staggered structure forms up and downStraight hook and WELDING STUDS have in the horizontal staggeredly, there is certain hook and pull effect, greatly increased concreteBonding strength between bridge guidance tape 9 and middle chord member 8, and due to the phase between upper and lower cross structure and WELDING STUDSMutual effect, increases and being connected between concrete bridge guidance tape and middle chord member has certain anti-deformation intensity; EnsureGlobality and the uniformity of bridge.
In the present embodiment, between the middle chord member 2 of adjacent steel girder truss, lay precast concrete bridge guidance tape, pre-The longitudinal seam cast-in-place concrete of concrete bridge guidance tape transverse ends processed and middle chord member side steel plate is connected; Adopt pre-Concrete bridge processed road plate structure, can obviously reduce concrete shrinkage and creep and draw the adverse effect to bridge structure;Adopt prefabricated construction, avoided conventional prestressed concrete continuous rigid frame bridge to need large-tonnage cantilever to hang blue, thousands of timesVarying environment under the long bundle installation of frame shuttering, reinforcing bar binding, Cast-in-place concrete, bending long prestressing force and stretch-drawA series of bulky equipment such as anchoring and complicated technology, the reduction of erection time, each construction link and quality are all easy to control,Bridge force-bearing is clear and definite, and construction safety is quick; Prestressed concrete bridge guidance tape is hollow prefabricated bridge guidance tape, heavyMeasure light and comparatively firm.
In the present embodiment, prefabricated coagulation is stretched out at upper horizontal bridge reinforcing bar 14 both ends in precast concrete bridge guidance tapeSoil bridge guidance tape and to external part subordinate bending, precast concrete bridge guidance tape is stretched out at lower horizontal bridge reinforcing bar 6 both endsAnd to stretching out bending on end, the downward bending portion at upper horizontal bridge reinforcing bar 14 both ends and lower horizontal bridge reinforcing bar 6The upwards bending part at both ends forms staggered up and down structure; Said structure is prefabricated shaping, uses simpleConvenient.
In the present embodiment, the transverse joint concrete between cast in situs precast concrete bridge guidance tape, builds bridge floorThe concrete 11 of mating formation; Form complete bridge floor, concrete bridge guidance tape 9 connects the overall bridge deck structure of formation,Bridge floor is positioned at girder middle part, can make bridge floor height moderate.
In the present embodiment, between adjacent steel girder truss, form the oblique support 12 of lateral cross, this oblique support12 two ends are fixed on corresponding middle chord member 2 and lower boom 3; Oblique support 12 forms scissor chi structure,And jointly form triangular support structure with lateral, significantly improve support strength.
Above-mentioned bridge construction process, comprises the following steps:
A. complete bridge foundation and Bridge Pier and Abutment Construction;
B. complete the construction of steel truss girder installation in position; Under bridge, have ready conditions when temporary rest pier is set, should adopt pushing towMethod completes the construction of steel truss girder installation in position; While unconditionally temporary rest pier being set under bridge, should adopt in bridge pier both sidesComplete the construction of full-bridge steel truss girder installation in position along spanning direction successively symmetrical free cantilever erection steel truss girder sections
C. complete in the section top boom of pier top by designing requirement in good time in batches and span centre section lower boom inPrestressed strand construction, and the filling of pier top section lower boom interior (in span centre section, chord member is interior as required)Note concrete construction
D. by designing requirement complete in good time in batches prefabricated bridge guidance tape between adjacent middle chord member installation, build horizontal strokeTo the concrete of seam, build the longitudinal connection seam concrete between middle chord member and prefabricated bridge guidance tape.
E. build deck paving of concrete, complete other affiliated facility constructions of bridge.
Finally explanation, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, althoughWith reference to preferred embodiment, the present invention is had been described in detail, those of ordinary skill in the art should be appreciated thatCan modify or be equal to replacement technical scheme of the present invention, and not depart from technical solution of the present inventionAim and scope, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. half-through steel purlin-Combined concrete continuous steel frame bridge, is characterized in that: comprise main truss beam,Described main truss beam is made up of the Steel Truss Beam of at least two Pin parallel longitudinal settings, Steel Truss Beam be equipped with top boom,Middle chord member and lower boom;
Between top boom and middle chord member and between middle chord member and lower boom, connect by web member separately respectively,The concrete bridge guidance tape that is connected between the middle chord member of adjacent steel girder truss forms steel case-concrete combined structure, and this is mixedSolidifying native bridge guidance tape is cast-in-place shaping concrete bridge guidance tape or the cast-in-place precast concrete bridge guidance tape that is connected.
2. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 1, is characterized in that:Described top boom is reduced to longitudinal both sides gradually by bridge pier, and extends in the beam section that main truss joist support is subject to sagging momentBe reduced to middle chord member and be fixedly connected with middle chord member.
3. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 2, is characterized in that:Between the top boom of adjacent steel girder truss, between middle chord member and between lower boom correspondence be provided with top bracing, inLateral and bottom lateral bracing.
4. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 2, its feature existsIn: described top boom, middle chord member and lower boom are hollow-core construction; Described main truss joist support is subject to hogging moment beam sectionTop boom arranges longitudinal prestressing steel bundle with the lower boom inside of bearing sagging moment beam section; Bear hogging moment beam sectionLower boom in concrete perfusion.
5. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 1, its feature existsIn: the side that middle chord member and concrete bridge guidance tape connect arranges WELDING STUDS along overall length of bridge.
6. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 5, its feature existsIn: the upper horizontal bridge reinforcing bar both ends downward bending of building in concrete bridge guidance tape, lower horizontal bridge reinforcing bar two endsPortion is bending upwards, and the downward bending portion at upper horizontal bridge reinforcing bar both ends and lower horizontal bridge reinforcing bar both ends are upwardsBending part forms staggered up and down structure.
7. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 5, its feature existsIn: between the middle chord member at adjacent steel girder truss, lay precast concrete bridge guidance tape, precast concrete bridge guidance tapeThe longitudinal seam cast-in-place concrete of transverse ends and middle chord member side steel plate is connected.
8. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 7, is characterized in that:Precast concrete bridge guidance tape is stretched out and to external part in upper horizontal bridge reinforcing bar both ends in precast concrete bridge guidance tapeSubordinate's bending, precast concrete bridge guidance tape is stretched out and to stretching out bending on end in lower horizontal bridge reinforcing bar both ends,The downward bending portion at upper horizontal bridge reinforcing bar both ends and the upwards bending part at lower horizontal bridge reinforcing bar both ends formLower staggered structure.
9. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 8, is characterized in that:Transverse joint concrete between cast in situs precast concrete bridge guidance tape, builds deck paving of concrete.
10. half-through steel purlin-Combined concrete continuous steel frame bridge according to claim 3, its feature existsIn: between adjacent steel girder truss, form the oblique support of lateral cross, these oblique support two ends are fixed on correspondenceMiddle chord member and lower boom.
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| CN201410263628.0A CN104032668B (en) | 2014-06-13 | 2014-06-13 | Half-through steel purlin-Combined concrete continuous steel frame bridge |
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| CN105780670A (en) * | 2014-12-23 | 2016-07-20 | 任丘市永基建筑安装工程有限公司 | Overall stabilization technology for steel bridge frame |
| CN105625158B (en) * | 2015-05-22 | 2017-08-25 | 中交柏嘉工程技术研究院有限公司 | Excellent power shaped steel purlin concrete combined continuous rigid frame bridge |
| CN107059593A (en) * | 2017-04-25 | 2017-08-18 | 桑大勇 | A kind of interior suspension cable compound section bridge and its construction method |
| CN107829361B (en) * | 2017-09-29 | 2019-12-17 | 中铁工程设计咨询集团有限公司 | Single-piece variable-height truss stiffening composite beam bridge |
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| CN110777643A (en) * | 2019-11-14 | 2020-02-11 | 中铁武汉勘察设计研究院有限公司 | Large-span steel truss combined continuous beam structure and construction method thereof |
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| JP3331202B2 (en) * | 1999-12-28 | 2002-10-07 | 住友建設株式会社 | Construction method of truss structure bridge |
| KR100423757B1 (en) * | 2001-05-04 | 2004-03-22 | 원대연 | Prestressed composite truss girder and construction method of the same |
| JP3881598B2 (en) * | 2002-06-21 | 2007-02-14 | オリエンタル建設株式会社 | Composite truss segment and truss bridge with suspension cable using the same and its construction method |
| CN202688849U (en) * | 2012-04-23 | 2013-01-23 | 中冶建筑研究总院有限公司 | Truss connecting device for FRP (fiber reinforce plastic) truss bridge arching |
| CN202899016U (en) * | 2012-10-23 | 2013-04-24 | 湖北华舟重工应急装备股份有限公司 | Arched steel truss bridge with slide rails |
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| CN111035187A (en) * | 2019-12-31 | 2020-04-21 | 兰剑智能科技股份有限公司 | A goods shelves that is used for oblique pull tower of antidetonation goods shelves and includes this oblique pull tower |
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