CN208072166U - Hybrid combining beam three stride continuous suspension bridge - Google Patents
Hybrid combining beam three stride continuous suspension bridge Download PDFInfo
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- CN208072166U CN208072166U CN201721252066.5U CN201721252066U CN208072166U CN 208072166 U CN208072166 U CN 208072166U CN 201721252066 U CN201721252066 U CN 201721252066U CN 208072166 U CN208072166 U CN 208072166U
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Abstract
The utility model provides a kind of hybrid combining beam three stride continuous suspension bridge, including：Support construction of two bridge towers as suspension bridge is set to pontic both sides, and the pontic between two bridge towers is suspension bridge main span, and the pontic on the outside of two bridge towers is end bay；Steel girder is located at pontic center；Two steel-concrete girders, one end are fixed in steel girder, and the other end is placed on the top of transition pier；Two main push-towing ropes, both ends are separately fixed on anchorage, and are supported on the top of two bridge towers, realize the load-bearing to steel girder, steel-concrete girder；Multiple hoist cables are mounted on main push-towing rope, for suspending steel girder, steel-concrete girder in midair；Two transition piers, are used to support the end on the outside of two steel-concrete girders；Two anchorages, are respectively arranged at the both sides of suspension bridge, for anchoring main push-towing rope.The utility model has many advantages, such as that structure overall stiffness is big, damping is big, stability is good, road-ability is good, anti-fatigue performance is good, working security is good, good economy performance.
Description
Technical field
The utility model is related to technical field of bridge engineering, especially a kind of hybrid combining beam three stride continuous suspension bridge.
Background technology
Suspension bridge is the flexible cable bridge structure for main supporting member with main push-towing rope tension.Girder dead weight, secondary dead load,
The loads such as automobile mobile load, temperature action, strong wind, earthquake pass to main push-towing rope by hoist cable, finally by main push-towing rope by whole load by
King-tower and anchorage pass to basis.
According to the support conditions of girder, suspension bridge can be divided into single span two and cut with scissors suspension bridge, three across two hinge suspension bridges, three stride continuous
Suspension bridge.Single span two cut with scissors suspension bridge, be girder only main span be arranged, girder at bridge tower by hinged support bridge tower crossbeam
On.Three cut with scissors suspension bridge across two, are girder in main span and end bay while being arranged, but girder disconnects at bridge tower, and pass through hinged branch
Support is on the crossbeam of bridge tower.Three stride continuous suspension bridge is girder in main span and end bay while being arranged, and girder is continuous at bridge tower
Pass through, hinged support is not provided between girder and bridge tower, the crossbeam of bridge tower need not be set below girder.
Using the suspension bridge of three stride continuous system, girder continues through at bridge tower, is conducive to reduce girder in beam wind
Lateral deflection under load action, and the expansion joint at bridge tower and bearing can be reduced, bridge tower area main beam linear is even suitable, and driving is relaxed
Appropriateness is good, and convenient for the maintenance management of bridge.Built maximum span three stride continuous suspension bridge is the great Bei of Denmark in the world
Er Tedong bridges, main span across footpath are 1624m, and end bay across footpath is 535m, and in August, 1998 is open to traffic；China be completed it is maximum across
Degree three stride continuous suspension bridge is four bridge of yangtze river in nanjing, and main span across footpath is 1418m, and end bay across footpath is respectively 410m and 363m,
In December, 2012 is open to traffic.China is also just in the Long span three stride continuous suspension bridge of planning construction, first, being located at Guangdong,Hongkong and Macao bight area
Depth in Channel Engineering main span 1666m Lingding channel bridge, second is that positioned at Guizhou Liu Panshui main span 1250m great river it is especially big
Bridge.Currently, built both at home and abroad and be all made of steel construction girder in the suspension bridge for the three stride continuous system built.
It is hinged because being not provided between girder and bridge tower although the suspension bridge of three stride continuous system has very strong superiority
Support, continues through the girder of bridge tower, will produce prodigious hogging moment in bridge tower region, this results in girder in bridge tower region
Section must be significantly increased.If being limited by construction condition, end bay girder across footpath is shorter, then ballast of the end bay girder centering across girder
Effect is smaller, increases so as to cause the internal force of main span girder and deformation, the negative reaction of end bay end of main beam transition pier increases, hoist cable
Internal force amplitude of variation increase, the fatigue behaviour of girder and hoist cable reduces.In addition, if main span and end bay be all using steel construction,
The cost of bridge is higher, and bridge overall stiffness is smaller, damping is very low, and the force model stability of bridge is poor.Therefore, it is necessary to study
The rigidity of structure is big, damping is big, stability is good, road-ability is good, anti-fatigue performance is good, working security is good, good economy performance
Novel three stride continuous suspension bridge scheme.
Utility model content
(1) technical problems to be solved
The utility model is small for traditional steel construction girder three stride continuous Suspension bridge structure overall stiffness, damping is low, stablizes
Property it is poor, and bridge tower region girder section is big, transition pier negative reaction is big, poor fatigue properties, the engineering of girder and hoist cable totally pass through
The features such as Ji property is poor proposes a kind of novel hybrid combining beam three stride continuous suspension bridge, set forth above at least partly to solve
The technical issues of.
(2) technical solution
One side according to the present utility model provides a kind of hybrid combining beam three stride continuous suspension bridge, including：Two
Bridge tower is set to pontic both sides as the support construction of suspension bridge, the pontic between two bridge towers be suspension bridge main span, two
Pontic on the outside of bridge tower is end bay；Steel girder is located at pontic center；Two steel-concrete girders, one end are consolidated in rigid girder,
The other end is placed on the top of transition pier；Two main push-towing ropes are located at pontic longitudinal direction both sides as the cable of main supporting member,
Each main push-towing rope is respectively supported at the top of two bridge towers, and its both ends is fixed on two anchorages, realizes to steel girder, steel-
The load-bearing of concrete girder；Multiple hoist cables are vertically connected between main push-towing rope and steel girder, main push-towing rope and steel-concrete girder, are used
It is suspended on main push-towing rope in by the steel girder of the bridge, steel-concrete girder；Two transition piers, are vertically provided at pontic both ends
Lower section below the end on the outside of i.e. two steel-concrete girders, is used to support the end on the outside of described two steel-concrete girders
Portion；Two anchorages, are respectively arranged at the both sides of suspension bridge, for anchoring main push-towing rope.It is described in the utility model some embodiments
The top plate and lower raft of steel girder are steel construction, and the top plate of the steel-concrete girder is concrete structure, lower raft
For steel construction.
In the utility model some embodiments, when one end of the steel girder is located at main span, and not up to its nearside bridge
When at tower, the steel-concrete girder that is attached thereto be set to respective side edge across whole length on and cross its nearside bridge tower with
Steel girder beam-ends consolidates；When one end of the steel girder is located at its nearside bridge tower, the steel-concrete girder being attached thereto is set
Be placed in respective side edge across whole length on；When one end of the steel girder cross its nearside bridge tower and stretch into respective side edge across
When, the steel-concrete girder be set to respective side edge across partial-length on.
In the utility model some embodiments, the bridge main beam is L along spanning length, two sides across length difference
For l1、l2, the length of steel girder is s, and the length of both sides steel-concrete girder is respectively s1、s2；Wherein, s1+s2+ s=L is determined
s、s1、s2Condition include：
Under automobile mobile load, temperature, wind load combination effect, the vertical deflection maximum d of girder at bridge main span L/4max
Reflect the vertical rigidity of bridge, vertical curve subsidence zone maximum U of the bridge main beam along spanning LmaxReflect the vertical entirety of bridge
Stress performance, above-mentioned parameter dmaxAnd UmaxObtain minimum.
In the utility model some embodiments, the steel girder of the determining hybrid combining beam three stride continuous suspension bridge and its
Both sides steel-concrete girder length s, s1、s2Condition further include：
As parameter dmax、UmaxWhen cannot obtain minimum simultaneously, with dmaxAcquirement minimum is preferential criterion, and
On the basis of this, further integrated construction security performance, construction quality, construction speed, project cost many factors, so that it is determined that even
Connect position.
In the utility model some embodiments, the steel girder of the determining hybrid combining beam three stride continuous suspension bridge and its
Both sides steel-concrete girder length s, s1、s2Condition further include：
The dmaxAccording to Finite Element, using the analysis that can fully consider geometrical non-linearity, material nonlinearity effect
Software, which calculates, to be determined；
The UmaxIt is determined according to following formula：
In formula, M (x), M (x1)、M(x2) it is respectively known s, s1、s2When, girder is in x, x1、 x2Moment of flexure at position；E
(x)I(x)、E(x1)I(x1)、E(x2)I(x2) it is respectively known s, s1、s2When, girder is in x, x1、x2Bending stiffness at position.
In the disclosure some embodiments, edge between the main push-towing rope and steel girder of the hybrid combining beam three stride continuous suspension bridge
Spanning direction installs K and detains (K is natural number) to center, and both ends are consolidated in main push-towing rope and steel girder respectively, and are arranged in suspension bridge
The design value of the intermediate region of main span, K need to consider the stress performance of hoist cable, the beam end displacement of steel-concrete girder, warp
The factors such as Ji property.
In the disclosure some embodiments, the steel girder or steel-concrete of the hybrid combining beam three stride continuous suspension bridge
The both sides installation width of girder is b1Horizontal pneumatic wing plate, provide air damping for bridge, and the maintaining roadway of bridge can be doubled as
It uses, is arranged in the span centre region of suspension bridge main span, length s3Design value need to consider bridge aeroperformance,
The factors such as economy.
(3) advantageous effect
It can be seen from the above technical proposal that the utility model hybrid combining beam three stride continuous suspension bridge is at least with following
One of advantageous effect：
(1) since the whole length or partial-length of end bay use steel-concrete girder, the rigidity and weight of end bay girder
Greatly, so as to significantly improve the rigidity of structure of bridge, reduce internal force and the deformation of main span steel girder, reduce and even avoid end bay
There is negative reaction in the transition pier of end of main beam, and can reduce the internal force amplitude of variation of hoist cable, improves the anti-fatigue performance of hoist cable；
(2) since the whole length or partial-length of end bay use steel-concrete girder, the damping of structure also significantly to increase
Greatly, so as to the aerodynamic stability during improving bridge construction stage and operation, the road-ability during operation is improved, and
The ability for resisting the force models loads such as temperature action, strong wind during bridge main beam is set up can be significantly improved, main girder construction is improved
Safety during erection；
(3) steel girder and both sides steel-concrete girder length s, s1、s2Determination, pass through girder at bridge main span L/4
Vertical deflection maximum dmax, bridge main beam along spanning L vertical curve subsidence zone maximum UmaxIt is vertical Deng two reflection bridges
Rigidity and the index of vertical holistic resistant behavior obtain minimum and are differentiated, so as to play to greatest extent steel and
The efficiency of concrete material, significantly saves project cost；
(4) the span centre region installation K of suspension bridge main span detains center, and the bending that can be substantially reduced span centre drop shot rope becomes
Shape, to promote span centre drop shot rope fatigue durability；But also the antisymmetry torsion stiffness of suspension bridge can be effectively improved, it improves
The aerodynamic stability of bridge；Additionally it is possible to which the girder end longitudinal displacement of suspension bridge under wind load is greatly reduced, reduce telescopic device
Scale；
(5) the span centre region s of suspension bridge main span3Steel girder or the installation of steel-concrete girder both sides are horizontal pneumatic in range
Wing plate can provide air damping for bridge, improve the aerodynamic stability of bridge, inhibit the vortex-induced vibration of girder, and can double as
The maintaining roadway of bridge uses, and does not increase the direction across bridge wind load of girder, good economy performance.
Description of the drawings
Fig. 1 is structural schematic diagram (3 pairs of centers of the hybrid combining beam three stride continuous suspension bridge of the utility model embodiment
Button)；
Fig. 2 (a) is the structural schematic diagram for the pancake tank steel main beam that the utility model embodiment has horizontal pneumatic wing plate；
Fig. 2 (b) is the structure for pancake tank shaped steel-concrete girder that the utility model embodiment has horizontal pneumatic wing plate
Schematic diagram；
Fig. 3 (a) is the structural schematic diagram for the truss-type steel girder that the utility model embodiment has horizontal pneumatic wing plate；
Fig. 3 (b) is the utility model embodiment, and there is the structure of truss-type steel-concrete girder of horizontal pneumatic wing plate to show
It is intended to；
Fig. 4 (a) is the truss-type steel girder that the utility model embodiment has horizontal pneumatic wing plate and double-layer pneumatic wing plate
Structural schematic diagram；
Fig. 4 (b) is truss-type steel-coagulation that the utility model embodiment has horizontal pneumatic wing plate and double-layer pneumatic wing plate
The structural schematic diagram of native girder.
【The utility model embodiment critical piece symbol description in attached drawing】
1, bridge tower；2, steel girder
3, steel-concrete girder；4, main push-towing rope
5, hoist cable；6, transition pier
7, anchorage；8, center button
9, horizontal pneumatic wing plate；10, double-layer pneumatic wing plate.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with specific embodiment, and
With reference to attached drawing, the utility model is further described.
The utility model provides a kind of hybrid combining beam three stride continuous suspension bridge, including two bridge towers, a steel girder,
Two steel-concrete girders, two main push-towing ropes, multiple hoist cables, two transition piers and two anchorages.Wherein, steel girder is located at pontic
Center, two steel-concrete girders, one end are consolidated in steel girder, and the other end is placed on the top of transition pier；The top plate of steel girder
And lower raft is steel construction, the top plate of steel-concrete girder is concrete structure, and its underpart is steel construction；The bridge both ends
End bay whole length or partial-length use steel-concrete girder, end is supported in transition pier.
The utility model some embodiments will be done with reference to appended attached drawing in rear and more comprehensively describe to property, some of but simultaneously
Not all embodiment will be shown.In fact, the various embodiments of the utility model can be realized in many different forms, without
It should be construed as limited to this several illustrated embodiment；Relatively, it theses embodiments are provided so that the utility model meets to be applicable in
Legal requirement.
In first exemplary embodiment of the utility model, a kind of hybrid combining beam three stride continuous suspension cable is provided
Bridge.Fig. 1 is structural schematic diagram (3 centerings of setting of the hybrid combining beam three stride continuous suspension bridge of the utility model first embodiment
Centre button).As shown in Figure 1, the utility model hybrid combining beam three stride continuous suspension bridge includes：Two bridge towers, 1, steel girder 2,
Two steel-concrete girders, 3, two main push-towing ropes 4,5, two, multiple hoist cables transition pier 6, two, 7,3 pairs of anchorage center button 8, level
Pneumatic wing plate 9.
Each component part of the present embodiment hybrid combining beam three stride continuous suspension bridge is carried out below in conjunction with attached drawing
Detailed description.
Two bridge towers 1 are set to pontic both sides as the support construction of suspension bridge, and the pontic between two bridge towers 1 is
The pontic of suspension bridge main span, two 1 outsides of bridge tower is end bay；
Steel girder 2 is located at pontic center；Steel-concrete girder 3, one end are fixed in steel girder 2, and the other end is placed on transition
The top of pier 6.The top plate and lower raft of the steel girder 2 are steel construction, and the top plate of steel-concrete girder 3 is concrete
Structure, lower raft are steel construction.The bridge main beam along spanning length be L, two sides across length be respectively l1、l2, steel
The length of girder 2 is s, and the length of both sides steel-concrete girder 3 is respectively s1、s2；
Wherein, s1+s2+ s=L determines s, s1、s2Determining condition is：
A, under the compound actions such as automobile mobile load, temperature, wind load, the vertical deflection of girder is very big at bridge main span L/4
Value dmax, bridge main beam along spanning L vertical curve subsidence zone maximum UmaxDeng reflection bridge vertical rigidity and it is vertical whole by
The parameter of power performance obtains minimum；
B, as parameter dmax、UmaxWhen cannot obtain minimum simultaneously, with dmaxAcquirement minimum is preferential criterion,
On the basis of this, it is more further to consider that construction safety performance is good, construction quality is easy to ensure, construction speed is fast, project cost is low etc.
Combined factors determine；
c、dmaxAccording to Finite Element, use can fully consider that geometrical non-linearity, the analysis of material nonlinearity effect are soft
Part, which calculates, to be determined；UmaxIt is determined according to following formula：
In formula, M (x), M (x1)、M(x2) it is respectively known s, s1、s2When, girder is in x, x1、x2Moment of flexure at position；E(x)
I(x)、E(x1)I(x1)、E(x2)I(x2) it is respectively known s, s1、s2When, girder is in x, x1、x2Bending stiffness at position.
When one end of the steel girder 2 is located at main span, and not up at its nearside bridge tower 1 when, steel-coagulation for being attached thereto
Native girder 3 be set to respective side edge across whole length on and cross its nearside bridge tower 1 and 2 beam-ends of steel girder and consolidate；When described
When one end of steel girder 2 is located at its nearside bridge tower 1, the steel-concrete girder 3 that is attached thereto be set to respective side edge across it is complete
On minister's degree；When one end of the steel girder 2 cross its nearside bridge tower 1 and stretch into respective side edge across when, the steel-concrete master
Beam 3 be set to respective side edge across partial-length on；
It is b that width is installed in the both sides of steel girder 2 or steel-concrete girder 31Horizontal pneumatic wing plate 9, provide gas for bridge
Dynamic damping, and the maintaining roadway that can double as bridge uses, and is arranged in the span centre region of suspension bridge main span, length s3Design take
Value need to consider the factors such as the aeroperformance of bridge, economy.Horizontal pneumatic wing plate is disposed with diversified forms：
Fig. 2 (a) is the structural representation for the pancake tank steel main beam 2 that the utility model embodiment has horizontal pneumatic wing plate
Figure, Fig. 2 (b) are the structural representations for pancake tank shaped steel-concrete girder 3 that the utility model embodiment has horizontal pneumatic wing plate
Figure；
Fig. 3 (a) is the structural schematic diagram for the truss-type steel girder 2 that the utility model embodiment has horizontal pneumatic wing plate,
Fig. 3 (b) is the structural schematic diagram for truss-type steel-concrete girder 3 that the utility model embodiment has horizontal pneumatic wing plate.
Further, also can setting width be b under girder truss plus above maintaining roadway2Double-layer pneumatic wing plate 10, lead to
It crosses the horizontal pneumatic wing plate 9+ double-layer pneumatics wing plate 10 in setting bridge floor both sides and combines control technology, further promote the wind resistance of bridge
Energy：Fig. 4 (a) is the knot for the truss-type steel girder 2 that the utility model embodiment has horizontal pneumatic wing plate and double-layer pneumatic wing plate
Structure schematic diagram, Fig. 4 (b), which is the utility model embodiment, has the truss-type steel-of horizontal pneumatic wing plate and double-layer pneumatic wing plate mixed
The structural schematic diagram of solidifying soil girder 3.
Two transition piers 6 are vertically provided at below pontic both ends, i.e., the end in two 3 outsides of steel-concrete girder
Lower section is used to support the end in 3 outside of described two steel-concrete girders；
Two anchorages 7 are respectively arranged at the both sides of suspension bridge, for anchoring main push-towing rope 4；
Two main push-towing ropes 4 are the cables as main supporting member, are located at pontic longitudinal direction both sides, and each main push-towing rope 4 props up respectively
Support is on the top of two bridge towers 1, and its both ends is fixed on two anchorages 7, realizes to steel girder 2, steel-concrete girder 3
Load-bearing；
Multiple hoist cables 5 are vertically connected between main push-towing rope 4 and steel girder 2, main push-towing rope 4 and steel-concrete girder 3, and being used for will
Steel girder 2, the steel-concrete girder 3 of the bridge are suspended on main push-towing rope 4；
3 pairs of center buttons 8 are mounted on along spanning direction between main push-towing rope 4 and steel girder 2, and both ends are consolidated in 4 He of main push-towing rope respectively
Steel girder 2, and it is arranged in the intermediate region of suspension bridge main span.
Hybrid combining beam three stride continuous suspension bridge provided by the utility model, damping big with structure overall stiffness is greatly, surely
The advantages that qualitative good, road-ability is good, anti-fatigue performance is good, working security is good, good economy performance.
So far, the utility model first embodiment hybrid combining beam three stride continuous suspension bridge introduction finishes.
So far, attached drawing is had been combined the utility model embodiment is described in detail.It should be noted that in attached drawing
Or in specification text, the realization method for not being painted or describing is shape known to a person of ordinary skill in the art in technical field
Formula is not described in detail.In addition, the above-mentioned definition to each element and method be not limited in mentioning in embodiment it is various
Concrete structure, shape or mode, those of ordinary skill in the art simply can be changed or replaced to it.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ",
" right side " etc. is only the direction of refer to the attached drawing, is not used for limiting the scope of protection of the utility model.Through attached drawing, identical member
Element is indicated by same or similar reference numeral.When that may cause to cause to obscure to the understanding of the utility model, will omit
Conventional structure or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only the utility model are illustrated to implement
The content of example.In addition, in the claims, any reference mark between bracket should not be configured to claim
Limitation.
Furthermore word "comprising" does not exclude the presence of element or step not listed in the claims.Before element
Word "a" or "an" does not exclude the presence of multiple such elements.
The word of specification and ordinal number such as " first ", " second ", " third " etc. used in claim, with modification
Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element
Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used for enabling the element with certain name and another tool
There is the element of identical name that can make clear differentiation.
Similarly, it should be understood that in order to simplify the utility model and help to understand one or more in each open aspect
It is a, above in the description of the exemplary embodiment of the utility model, each feature of the utility model is divided together sometimes
In group to single embodiment, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following meaning
Figure：The requires of the utility model features more more than the feature being expressly recited in each claim i.e. claimed.
More precisely, as reflected in the following claims, open aspect is to be less than single implementation disclosed above
All features of example.Therefore, it then follows thus claims of specific implementation mode are expressly incorporated in the specific implementation mode,
In each separate embodiments of the claim as the utility model itself.
Particular embodiments described above has carried out into one the purpose of this utility model, technical solution and advantageous effect
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, is not limited to this
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (5)
1. a kind of hybrid combining beam three stride continuous suspension bridge, including：
Two bridge towers (1) are set to pontic both sides, the pontic between two bridge towers (1) is outstanding as the support construction of suspension bridge
Cable bridge main span, the pontic on the outside of two bridge towers (1) are end bay；
Steel girder (2) is located at pontic center；
Two steel-concrete girders (3), one end are fixed in steel girder (2), and the other end is placed on the top of transition pier (6)；
Two main push-towing ropes (4) are located at pontic longitudinal direction both sides as the cable of main supporting member, and each main push-towing rope (4) supports respectively
On the top of two bridge towers (1), and its both ends is fixed on two anchorages (7), is realized to steel girder (2), steel-concrete master
The load-bearing of beam (3)；
Multiple hoist cables (5) are vertically connected between main push-towing rope (4) and steel girder (2), main push-towing rope (4) and steel-concrete girder (3),
For the steel girder (2) of the bridge, steel-concrete girder (3) to be suspended in main push-towing rope (4)；
Two transition piers (6) are vertically provided at below pontic both ends, i.e. end on the outside of two steel-concrete girders (3)
Lower section is used to support the end on the outside of described two steel-concrete girders (3)；
Two anchorages (7), are respectively arranged at the both sides of suspension bridge, for anchoring main push-towing rope (4).
2. hybrid combining beam three stride continuous suspension bridge according to claim 1, the top plate and lower bottom of the steel girder (2)
Plate is steel construction, and the top plate of the steel-concrete girder (3) is concrete structure, and lower raft is steel construction.
3. hybrid combining beam three stride continuous suspension bridge according to claim 2, when one end of the steel girder (2) is located at master
Across, and not up at its nearside bridge tower (1) when, the steel-concrete girder (3) that is attached thereto be set to respective side edge across whole
In length and cross its nearside bridge tower (1) and steel girder (2) beam-ends consolidation；When one end of the steel girder (2) is located at its nearside
When at bridge tower (1), the steel-concrete girder (3) that is attached thereto be set to respective side edge across whole length on；As the steel master
One end of beam (2) cross its nearside bridge tower (1) and stretch into respective side edge across when, the steel-concrete girder (3) is set to accordingly
Side across partial-length on.
4. hybrid combining beam three stride continuous suspension bridge according to claim 1, between the main push-towing rope (4) and steel girder (2)
K being installed along spanning direction, (8) are detained to center, wherein K is natural number, and both ends are consolidated in main push-towing rope (4) and steel girder (2) respectively,
And it is arranged in the intermediate region of suspension bridge main span, the design value of K considers the stress performance of hoist cable (5), steel-concrete master
The beam end displacement of beam (3), economic factors.
5. hybrid combining beam three stride continuous suspension bridge according to claim 1, the steel girder (2) or steel-concrete master
The both sides installation width of beam (3) is b1Horizontal pneumatic wing plate (9) improve the gas of bridge for providing air damping for bridge
Dynamic stability inhibits the vortex-induced vibration of girder, and is used as the maintaining roadway of bridge, is arranged in the span centre area of suspension bridge main span
Domain, length s3Design value consider the aeroperformance of bridge, economic factors.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587417A (en) * | 2017-09-27 | 2018-01-16 | 中交公路长大桥建设国家工程研究中心有限公司 | Hybrid combining beam three stride continuous suspension bridge |
| CN111663428A (en) * | 2020-06-24 | 2020-09-15 | 中铁二院工程集团有限责任公司 | Negative inhaul cable suspension bridge |
| CN114635372A (en) * | 2022-03-21 | 2022-06-17 | 武汉理工大学 | Multi-tower suspension bridge reinforcing structure for overcoming middle tower effect |
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2017
- 2017-09-27 CN CN201721252066.5U patent/CN208072166U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587417A (en) * | 2017-09-27 | 2018-01-16 | 中交公路长大桥建设国家工程研究中心有限公司 | Hybrid combining beam three stride continuous suspension bridge |
| CN111663428A (en) * | 2020-06-24 | 2020-09-15 | 中铁二院工程集团有限责任公司 | Negative inhaul cable suspension bridge |
| CN114635372A (en) * | 2022-03-21 | 2022-06-17 | 武汉理工大学 | Multi-tower suspension bridge reinforcing structure for overcoming middle tower effect |
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