CN209162616U - Formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge - Google Patents
Formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge Download PDFInfo
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- CN209162616U CN209162616U CN201821374374.XU CN201821374374U CN209162616U CN 209162616 U CN209162616 U CN 209162616U CN 201821374374 U CN201821374374 U CN 201821374374U CN 209162616 U CN209162616 U CN 209162616U
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Abstract
The utility model discloses a kind of outside tunnel immediately adjacent to bridge formula main cable suspension bridge structures, set on tunnel (1) phase ground section, including girder (3), the top two sides of the girder (3) are equipped with outer formula main push-towing rope (5), described outer is equipped with several Inclined Boom Cables (7) being spaced apart between formula main push-towing rope (5) and the girder (3), the angle that the top surface of the Inclined Boom Cable (7) and the girder (3) is formed is obtuse angle, and the angle of the top surface of the Inclined Boom Cable (7) of different location and the girder (3) formation is of different sizes, to form the Inclined Boom Cable (7) of differing tilt angles, and the length of the Inclined Boom Cable (7) is gradually increased along the center of the girder (3) to both ends length, outer formula main push-towing rope (5) for being sequentially connected the Inclined Boom Cable (7) end is that three-dimensional space is bent Line.The main cable suspension bridge structure of the utility model meets lateral stiffness requirement, reduces width of main beam and length and main push-towing rope weight.
Description
Technical field
The utility model belongs to railroad bridge field of engineering technology, more particularly, to Zhang Shizhu outside a kind of tunnel immediately adjacent to bridge
Cable suspension rope bridge structure.
Background technique
Railroad bridge is railway across river, lake, straits, mountain valley or other barriers, and to realize rail track
Crossings on different level with rail track or road and the structures built.Railroad bridge load is big, and impact force is big, and rate of traffic flow is big,
It is required that the standard that can resist natural calamity is high, especially structural requirement has certain vertical lateral stiffness and power performance.
Traditional railway suspension bridge, mostly symmetrical parallel rope face main push-towing rope, and girder and bridge tower are also symmetrical with spanning center
Structure, referring to Fig. 1, girder and bridge tower are symmetrical structure, and main push-towing rope is parallel to the setting of rope face, and sunpender is arranged perpendicular to girder.But
The bridge structure form be only applicable to lateral stiffness is of less demanding, two sides hypsography less, the feelings in the bridge two sides tunnel Bu Jie
Condition.
When two sides topographical elevation difference is larger at bridge site or V-arrangement valley, at especially more than hundred meters and valley wind speed is larger, and
When two sides have tunnel to connect again, using traditional suspension bridge form, there are many defects: to adapt to the biggish landform of height difference, bridge tower
It need to be correspondingly arranged the huge height difference of difference, bridge tower setting will cause investment waste；In addition it is too long to rise up into tunnel distance for girder, construction
Scheme is infeasible；The suspension bridge lateral stiffness built up is poor, is not able to satisfy the high requirement of the relatively larger transverse rigidity of ravine wind speed.To adapt to
The engineering construction condition of two sides topographical elevation difference and tunnel immediately adjacent to bridge, while the unfavorable conditions for overcoming ravine wind big, therefore to new knot
It is imperative that configuration formula is explored.
Patent CN108374322A discloses a kind of asymmetric main push-towing rope railway Suspension bridge structure, including connects height across river valley
The girder on riverbank and low riverbank further includes building in the bridge tower of low riverbank side；Bridge tower passes through girder along the vertical direction, on bridge tower
End is disposed with load-bearing cable；Load-bearing cable one end is fixedly connected with the first anchorage of low riverbank side, and the other end passes through on bridge tower
End is fixedly connected with the second anchorage of high riverbank side, and load-bearing cable is fixedly connected by more sunpenders with girder；Described
Not higher than bridge tower and load-bearing cable connection point, second anchorage is connect with load-bearing cable for one anchorage and load-bearing cable connection point
Point is not less than bridge tower and load-bearing cable connection point.The patent, which is similarly, solves the problems, such as to want the larger suspension bridge of height difference, but does not solve
Certainly girder rises up into that tunnel distance is too long and the problem of suspension bridge lateral stiffness difference.
Utility model content
Aiming at the above defects or improvement requirements of the prior art, the utility model provides a formula main push-towing rope outside a kind of tunnel immediately adjacent to bridge
Suspension bridge structure, the steel anchor box of Inclined Boom Cable beam-ends side are anchored in girder two sides, the top surface formation of Inclined Boom Cable and girder
Angle is obtuse angle, and the angle of the top surface of the Inclined Boom Cable of different location and girder formation is of different sizes, forms different inclinations
The oblique sunpender of angle keeps suspension bridge longitudinal in receiving girder so that reaching outer formula main push-towing rope of auxiliary forms three-dimensional space curve
While load, be significantly greatly increased the resistivity of its side knock, improve lateral stiffness, with solve two sides topographical elevation difference it is larger or
When V-arrangement valley, at especially more than hundred meters and problem that wind speed relatively larger transverse rigidity requirement in valley is high.Master can also be reduced simultaneously
Beam width and length reduce main push-towing rope weight and overall cost.
To achieve the goals above, the utility model provides a formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge, is set to
With tunnel phase ground section, including girder, the top two sides of the girder are equipped with outer formula main push-towing rope, outer formula main push-towing rope and the institute
It states and is equipped with several Inclined Boom Cables being spaced apart between girder；
The angle that the top surface of the Inclined Boom Cable and the girder is formed is obtuse angle, and the Inclined Boom Cable of different location
The angle formed with the top surface of the girder it is of different sizes, to form the Inclined Boom Cable of differing tilt angles, and the inclination
The length of sunpender is gradually increased along the center of the girder to both ends length, is sequentially connected outer formula of the Inclined Boom Cable end
Main push-towing rope is three-dimensional space curve, to enhance the lateral stiffness of suspension bridge.
Further, tunnel immediately adjacent to bridge beam section is equipped between the tunnel and the girder, the tunnel immediately adjacent to bridge beam section includes
Bottom is equipped with the small abutment for being supported in tunnel floor top surface.
Further, the track flush of the small abutment and the girder and tunnel.
Further, the girder and non-tunnel construction sections junction are equipped with bridge tower, and the bridge tower is two, and separate type is set to
The two sides of girder.
Further, main push-towing rope saddle is equipped at the top of the bridge tower.
Further, the end of the outer formula main push-towing rope is equipped with the tunnel anchorage for being fixed on the top in two sides tunnel.
Further, curve of the tunnel anchorage along the outer formula main push-towing rope moves towards setting, positioned at same tunnel side
The tunnel anchorage is in formula interval setting outside.
Further, the tunnel anchorage is armored concrete tunnel-type anchorage.
Further, the end of the Inclined Boom Cable is equipped with anchorage box, and the girder two sides are equipped with tuyere or anchoring chamber,
The anchorage box is fixed in the tuyere or anchoring chamber of two sides.
In general, it can obtain down the above technical solutions conceived by the present invention are compared with the prior art,
Column the utility model has the advantages that
(1) formula main cable suspension bridge structure, the steel anchor box of Inclined Boom Cable beam-ends side outside the tunnel immediately adjacent to bridge of the utility model
It is anchored in girder two sides, the angle that the top surface of Inclined Boom Cable and girder is formed is obtuse angle, and the Inclined Boom Cable of different location and master
The angle that the top surface of beam is formed it is of different sizes, the oblique sunpender of differing tilt angles is formed, to reach outer formula main push-towing rope of auxiliary
Three-dimensional space curve is formed, enables suspension bridge while bearing girder longitudinal load, the resistance of its side knock is significantly greatly increased
Ability improves lateral stiffness, when solving larger two sides topographical elevation difference or V-arrangement valley, at especially more than hundred meters and ravine wind
The high problem of the relatively larger transverse rigidity requirement of speed.Width of main beam and length can also be reduced simultaneously, reduces main push-towing rope weight and entirety
Cost.
(2) formula main cable suspension bridge structure outside the tunnel immediately adjacent to bridge of the utility model, using the structure of tunnel immediately adjacent to bridge, in bridge tunnel
Junction is arranged small abutment and is attached support, and small abutment is fixed on the steady safety of tunnel floor excessively, saves unilateral bridge side
Across or double side across and reducing main push-towing rope length, save bridge tower project amount, greatly reduce project cost, while avoiding leading
Beam gos deep into the too long problem in tunnel.
(3) formula main cable suspension bridge structure outside the tunnel immediately adjacent to bridge of the utility model, bridge tower is separate structure, is separated vertical
Set on the two sides of girder, separate type bridge tower is that the structure for outer formula for adapting to main push-towing rope is configured, outer formula main push-towing rope end of two sides
The width spaced far greater than girder between end, the setting of separate type bridge tower can be realized the outer formula main push-towing rope adaptability to two sides
Support, formula main push-towing rope provides support outside.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of suspension bridge in the prior art；
Fig. 2 is the structural schematic diagram of parallel rope face main push-towing rope in the prior art；
Fig. 3 opens the main view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model first embodiment outside；
Fig. 4 opens the top view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model first embodiment outside；
Fig. 5 opens the main view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model second embodiment outside；
Fig. 6 opens the top view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model second embodiment outside；
Fig. 7 is the structural schematic diagram of separate type bridge tower and bridge pier in the utility model embodiment；
Fig. 8 is the structural schematic diagram of the utility model embodiment middle girder and outer formula main push-towing rope cross section；
Fig. 9 is the structural schematic diagram in the cross section of the small Abutment of tunnel immediately adjacent to bridge in the utility model embodiment；
Figure 10 is the utility model embodiment jackshaft tunnel joint elevation.
In all attached drawings, same label indicates identical structure or part, in which: the tunnel 1-, 2- tunnel immediately adjacent to bridge beam section, 3-
Formula main push-towing rope, 6- open formula end bay main push-towing rope, 7- Inclined Boom Cable, 8- tunnel anchorage, the basis 9-, 10- main push-towing rope outside outside girder, 4- bridge tower, 5-
Saddle；The small abutment of 101- tunnel floor, 201-, 301- pinner, 302- bridge pier.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.In addition, involved in the various embodiments of the present invention described below
And to technical characteristic can be combined with each other as long as they do not conflict with each other.
Fig. 3 opens the main view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model first embodiment outside.
Fig. 4 opens the top view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model first embodiment outside.Fig. 8 is this reality
With the structural schematic diagram of new embodiment middle girder and outer formula main push-towing rope cross section.As shown in Fig. 3, Fig. 4 and Fig. 8, the present embodiment
Be the suspension bridge of tunnel V-arrangement gorge segment suitable for both ends, outside tunnel immediately adjacent to bridge a formula main cable suspension bridge structure include girder 3,
Formula main push-towing rope 5, Inclined Boom Cable 7 and tunnel anchorage 8 outside, girder 3 are set between both ends tunnel 1, are used to form the out of shape of connection both ends
Face；Outer formula main push-towing rope 5 includes two, is respectively arranged on the two sides at 3 top of girder, and open between formula main push-towing rope 5 and the outside of girder 3 outside
It is equipped with Inclined Boom Cable 7, one end of Inclined Boom Cable 7 is fixed in the beam body of girder 3, and the other end is connect with a formula main push-towing rope 5 outside, with
The load of girder 3 is passed into outer formula main push-towing rope 5 by Inclined Boom Cable 7.And Inclined Boom Cable 7 is several, along formula main push-towing rope outside
5 and the length direction of girder 3 be spaced apart.
Wherein, the angle that the top surface of Inclined Boom Cable 7 and girder 3 is formed is obtuse angle, and the Inclined Boom Cable 7 of different location and main
The angle that the top surface of beam 3 is formed it is of different sizes, to form the Inclined Boom Cable 7 of differing tilt angles；In addition the length of Inclined Boom Cable 7
Degree is different, is gradually increased from the center of girder 3 to the length of two sides Inclined Boom Cable 7.
A formula main push-towing rope 5 is sequentially connected spaced several Inclined Boom Cables 7 different with inclination angle with length outside, opens formula outside
Main push-towing rope 5 forms three-dimensional space curve, is different from traditional plane curve formed in the plane of vertical girder in main push-towing rope, and outer
The three-dimensional space curve that formula main push-towing rope 5 is formed, can be significantly greatly increased the resistance of its side knock while bearing girder longitudinal load
Ability improves lateral stiffness, when solving larger two sides topographical elevation difference or V-arrangement valley, at especially more than hundred meters and ravine wind
The high problem of the relatively larger transverse rigidity requirement of speed.Width of main beam and length can also be reduced simultaneously, reduces main push-towing rope weight, cost drop
Low 40%.
Preferably, the end of Inclined Boom Cable 7 is equipped with anchorage box, and 3 two sides of girder are equipped with tuyere or anchoring chamber, Inclined Boom Cable
7 are fixed in the tuyere or anchoring chamber of 3 two sides of girder by the anchorage box of end, so that the inclination for transmitting load
Sunpender 7 can be securely fixed on girder 3.
The both ends of outer formula main push-towing rope 5 are correspondingly arranged in the tunnel 1 at both ends, and the end of outer formula main push-towing rope 5 is equipped with tunnel anchorage
8, and the top in two sides tunnel 1 is fixed on by tunnel anchorage 8, by opening formula main push-towing rope 5 outside and tunnel anchorage 8 finally transmits load
Onto the structure in the tunnel 1 at both ends, bearing to entire girder 3 is realized.Further, as shown in figure 4, the correspondence of tunnel anchorage 8 is set
There are 4, curve of each tunnel anchorage 8 along outer formula main push-towing rope 5 moves towards setting, and the tunnel anchorage 8 positioned at same 1 side of tunnel is in outer
The setting of formula interval is opened, for bearing to girder 3 to be better achieved, guarantees that the integrally-built stability enhancing of suspension bridge is laterally rigid
Degree.
Fig. 9 is the structural schematic diagram in the cross section of the small Abutment of tunnel immediately adjacent to bridge in the utility model embodiment.Figure 10 is this
Utility model embodiment jackshaft tunnel joint elevation.As shown in Figure 9 and Figure 10, tunnel immediately adjacent to bridge is equipped between tunnel 1 and girder 3
Beam section 2, tunnel immediately adjacent to bridge beam section 2 include small abutment 201, the track that small abutment 201 is set at nearly tunnel face, and is set in tunnel 1
Between the end of girder 3, stablize transition support for connecting the track in girder 3 and tunnel 1, and to providing；Further
The top surface of small abutment 201 and the top surface of 1 middle orbit of tunnel and girder 3 are to concordant, to ensure the stationarity of junction.Preferably,
Small 201 bottom of abutment is tunnel floor, provides vertical supporting for small abutment 201, top two sides are equipped with cantilever slab, guarantee transition
Safety.
Fig. 5 opens the main view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model second embodiment outside.
Fig. 6 opens the top view of formula main cable suspension bridge structure for tunnel immediately adjacent to bridge a kind of in the utility model second embodiment outside.The present embodiment
Be the tunnel other side suitable for side be non-tunnel, and two sides are there are height difference is larger or V-arrangement gorge segment, equally include girder 3,
Outer formula main push-towing rope 5, Inclined Boom Cable 7 and tunnel anchorage 8, wherein set-up mode and the implementation one of outer formula main push-towing rope 5 and Inclined Boom Cable 7
In it is identical, the angle that the top surface of Inclined Boom Cable 7 and girder 3 is formed is obtuse angle, and the Inclined Boom Cable 7 of different location and girder 3
The angle that is formed of top surface it is of different sizes, outside 7 a formula main push-towing rope 5 be sequentially connected it is spaced it is several with length and inclination angle not
Same Inclined Boom Cable 7, formula main push-towing rope 5 forms three-dimensional space curve outside, increases the resistivity of its side knock, improves lateral rigid
Degree.
What is different from the first embodiment is that one end of girder 3 is set at tunnel 1, the other end is set on the ground in non-tunnel, main
Ground of the beam 3 close to the other side is equipped with bridge tower 4；Further, bridge tower 4 is two, and is separate type bridge tower, and two bridge towers 4 divide
The two sides of girder 3 are opened in, vertical girder 3, separate type bridge tower is that the structure for outer formula for adapting to main push-towing rope is configured, two sides
Outer 5 end of formula main push-towing rope between the width spaced far greater than girder 3, the setting of separate type bridge tower can be realized to two sides
The support of outer formula main push-towing rope 5.
As shown in fig. 7, the top of bridge tower 4 is equipped with main push-towing rope saddle 10, it is preferable that its bottom is equipped with basis 9, further,
Basis 9 is Extended chemotherapy structure, increases the stability of structure.Main push-towing rope between bridge tower 4 and the base of the other side is to open formula side outside
Across main push-towing rope 6.
Preferably, girder 3 is steel box-girder；
Preferably, main push-towing rope uses 1770MPa zinc-aluminium-alloy zinc steel wire, and sunpender uses the zinc-plated parallel steel wire of 1670MPa.
Preferably, tunnel anchorage 8 is armored concrete tunnel-type anchorage.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
For limiting the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (9)
1. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge is set to and tunnel (1) phase ground section, including girder (3), spy
Sign is that the top two sides of the girder (3) are equipped with outer formula main push-towing rope (5), outer formula main push-towing rope (5) and the girder
(3) several Inclined Boom Cables (7) being spaced apart are equipped between；
The angle that the top surface of the Inclined Boom Cable (7) and the girder (3) is formed is obtuse angle, and the inclination of different location is hung
The angle that the top surface of bar (7) and the girder (3) is formed it is of different sizes, to form the Inclined Boom Cable (7) of differing tilt angles,
And the length of the Inclined Boom Cable (7) is gradually increased along the center of the girder (3) to both ends length, is sequentially connected the inclination
The outer formula main push-towing rope (5) of sunpender (7) end is three-dimensional space curve, to enhance the lateral stiffness of suspension bridge.
2. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 1, which is characterized in that the tunnel
(1) between the girder (3) be equipped with tunnel immediately adjacent to bridge beam section (2), the tunnel immediately adjacent to bridge beam section (2) include bottom be equipped be supported in
The small abutment (201) of tunnel floor top surface.
3. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 2, which is characterized in that the foot bridge
The track flush of platform (201) and the girder (3) and tunnel (1).
4. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 1, which is characterized in that the girder
(3) bridge tower (4) are equipped with non-tunnel construction sections junction, the bridge tower (4) is two, and separate type is set to the two sides of girder (3).
5. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 4, which is characterized in that the bridge tower
(4) main push-towing rope saddle (10) are equipped at the top of.
6. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 1, which is characterized in that described outer
The end of formula main push-towing rope (5) is equipped with the tunnel anchorage (8) for being fixed on the top in two sides tunnel (1).
7. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 6, which is characterized in that the tunnel
Curve of the anchor (8) along outer formula main push-towing rope (5) moves towards setting, is located at the tunnel anchorage (8) of same tunnel (1) side in outer
Open the setting of formula interval.
8. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 6 or 7, which is characterized in that described
Tunnel anchorage (8) is armored concrete tunnel-type anchorage.
9. formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge according to claim 1, which is characterized in that the inclination
The end of sunpender (7) is equipped with anchorage box, and girder (3) two sides are equipped with tuyere or anchoring chamber, the anchorage box are fixed on two
In the tuyere or anchoring chamber of side.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821374374.XU CN209162616U (en) | 2018-08-24 | 2018-08-24 | Formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821374374.XU CN209162616U (en) | 2018-08-24 | 2018-08-24 | Formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894093A (en) * | 2018-08-24 | 2018-11-27 | 中铁第四勘察设计院集团有限公司 | Formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge |
| CN111910502A (en) * | 2020-07-31 | 2020-11-10 | 中铁二十局集团第六工程有限公司 | Suspension cable overhead structure of existing railway line |
| CN112176872A (en) * | 2020-09-15 | 2021-01-05 | 中交二公局第二工程有限公司 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
| CN112855169A (en) * | 2021-01-05 | 2021-05-28 | 广西壮族自治区公路发展中心 | Construction method of cable-stayed bridge type tunnel spanning super-huge karst cave |
-
2018
- 2018-08-24 CN CN201821374374.XU patent/CN209162616U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894093A (en) * | 2018-08-24 | 2018-11-27 | 中铁第四勘察设计院集团有限公司 | Formula main cable suspension bridge structure outside a kind of tunnel immediately adjacent to bridge |
| CN111910502A (en) * | 2020-07-31 | 2020-11-10 | 中铁二十局集团第六工程有限公司 | Suspension cable overhead structure of existing railway line |
| CN112176872A (en) * | 2020-09-15 | 2021-01-05 | 中交二公局第二工程有限公司 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
| CN112176872B (en) * | 2020-09-15 | 2022-03-01 | 中交二公局第二工程有限公司 | Method for erecting main cable of anchor suspension bridge of two-bank tunnel |
| CN112855169A (en) * | 2021-01-05 | 2021-05-28 | 广西壮族自治区公路发展中心 | Construction method of cable-stayed bridge type tunnel spanning super-huge karst cave |
| CN112855169B (en) * | 2021-01-05 | 2023-06-16 | 广西壮族自治区公路发展中心 | Cable-stayed bridge type tunnel construction method for crossing oversized karst cave |
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