CN106012796A - Stay cable intersected multi-pylon cable-stayed bridge - Google Patents
Stay cable intersected multi-pylon cable-stayed bridge Download PDFInfo
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- CN106012796A CN106012796A CN201610573220.2A CN201610573220A CN106012796A CN 106012796 A CN106012796 A CN 106012796A CN 201610573220 A CN201610573220 A CN 201610573220A CN 106012796 A CN106012796 A CN 106012796A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a stay cable intersected multi-pylon cable-stayed bridge. The stay cable intersected multi-pylon cable-stayed bridge comprises a main beam, a plurality of pylons and two tiebacks, wherein two sides of the upper part of the plurality of pylons are connected with the main beam by virtue of a plurality of first stay cables, the upper end of a side pylon is connected with the tieback by virtue of a ground anchor cable, a plurality of second stay cables and a plurality of third stay cables are arranged between two adjacent pylons, the upper end of each second stay cable is connected with the upper end of one of two adjacent pylons, the upper end of each third stay cable is connected with the upper end of the other one of the two adjacent pylons, the lower end of each second stay cable and the lower end of each third stay cable are connected with a main beam span middle section between two adjacent pylons, the second stay cables and the third stay cables are intersected with each other in an area adjacent to the main beam span middle section, and the upper end of the middle pylon is provided with a first connection device for connecting the upper end of the corresponding second stay cable and the upper end of the third stay cable. By adopting the multi-pylon cable-stayed bridge, the stress of the pylons can be improved, the overall rigidity of the bridge can be improved, and the bridge deformation under the load action of cars can be reduced.
Description
Technical field
The invention belongs to multi pylon cable stayed bridge technical field, be specifically related to a kind of suspension cable chiasma type multitower
Cable-stayed bridge.
Background technology
Cable-stayed bridge span ability is big, and wind resisting stability is preferable, is widely used in broad rivers, straits
Etc. in the bridge construction of landform.But traditional double pylon cable stayed bridge only has single main span, its span ability
Still it is restricted.In recent years, multi pylon cable stayed bridge is increasingly becoming a kind of emerging bridge type, has significantly expanded tiltedly
Draw the span ability of bridge.But multi pylon cable stayed bridge rigidity is relatively low, under automobile live loading, structure is easily sent out
Raw moderate finite deformation, have impact on the serviceability of bridge.Its reason is that middle bridge tower lacks having of end bay anchor cable
Effect constraint, easily deforms under live loading, thus causes the deformation of girder.
At present, for solving to improve the rigidity of multi pylon cable stayed bridge, the multi pylon cable stayed bridge built is mostly from bridge
Tower is started with, and reduces, by increasing bridge tower rigidity or increase auxiliary part, the malformation that mobile load causes.
As in Greece Weng-An Dili father-in-law (Rion-Antirion) cable-stayed bridge to have employed rigidity huge
Pyramid bridge tower.The good bridge that continues of China then have employed and arranges X-shaped bracket on bridge tower to reduce master
The deformation of beam.
There is certain weak point in prior art, improves structure by increase bending resistance bridge tower rigidity whole
During body rigidity, bridge tower can be made to bear bigger moment of flexure under live loading, to the stress of bridge tower the most not
Profit.And when the region that the depth of water is bigger uses this scheme, the cost on bridge tower and basis can be greatly increased.
Of the prior art a kind of multi pylon cable stayed bridge as shown in Figure 1, it includes 8, two limits of girder
Bridge pier 17 and multiple bridge tower, its bridge tower is four, and four bridge towers are arranged in order, respectively No. one
Tower 2, No. three towers 3 of 1, No. two towers and No. four towers 4, the both sides of described tower 1 upper end, No. two towers
The both sides of the both sides of 2 upper ends, the both sides of No. three tower 3 upper ends and No. four tower 4 upper ends are all by limit drag-line
6 are connected with girder 8, and a described tower 1 passes through anchoringwire 18 away from the upper end, side of No. two towers 2
Being anchored in one end of girder 8, described No. four towers 4 pass through anchoringwire away from the upper end, side of No. three towers 3
18 other ends being anchored in girder 8.
Multi pylon cable stayed bridges more of the prior art, it is possible to anchorage is set in bridge end, by outermost
Bridge tower is anchored in anchorage by ground anchor cable.Concrete of the prior art another kind of multitower as shown in Figure 2
Cable-stayed bridge, it includes 8, two anchorages 5 of girder and multiple bridge tower, and its bridge tower is four, four bridges
Tower is arranged in order, respectively No. one tower 2, No. three towers 3 of 1, No. two towers and No. four towers 4, described No. one
The both sides of tower 1 upper end, the both sides of No. two tower 2 upper ends, the both sides of No. three tower 3 upper ends and No. four towers 4
The both sides of upper end are all connected with girder 8 by drag-line 6, and a described tower 1 is away from the one of No. two towers 2
Upper end, side is connected with an anchorage 5 by ground anchor cable 7, and described No. four towers 4 are away from No. three towers 3
Upper end, side is connected with another anchorage 5 by ground anchor cable 7.
Above two multi pylon cable stayed bridge in use, when live loading in across, i.e. when live load load
During main span between No. two towers 2 and No. three towers 3, load across (i.e. No. two towers 2 and No. three towers 3 it
Between main span) Suo Li increase, and adjacent non-load across (between i.e. No. one tower 1 and No. two towers 2
Main span between main span and No. three towers 3 and No. four towers 4) Suo Li is basically unchanged that (Suo Li is still equal to it
Suspention girder weight), as shown by the arrows in Figure 1, load across Suo Li along arrow d to arrow e
Direction be transferred to No. two towers 2, the direction along arrow d ' to arrow e ' is transferred to No. three towers 3 simultaneously,
Load and mainly undertaken by loading bridge tower (i.e. No. two towers 2 and No. three towers 3) across Suo Li augmenting portion,
Accordingly, it would be desirable to bigger bridge tower rigidity reduces the malformation under live loading, need to build rigidity
Huge bridge tower.And No. two towers 2 and No. three towers 3 bear bigger moment of flexure, totally unfavorable to bridge tower.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, it is provided that a kind of suspension cable intersects
Type multi pylon cable stayed bridge.This multi pylon cable stayed bridge can improve the stress of bridge tower, greatly reduces bridge tower and base
The cost of plinth, the integral rigidity of bridge is improved, and reduces the bridge deformation under carload effect.
For achieving the above object, the technical solution used in the present invention is: a kind of suspension cable chiasma type multitower
Cable-stayed bridge, it is characterised in that: include girder, multiple bridge tower and two anchorages, multiple described bridge tower bags
Including two limit towers and the middle tower being arranged between two limit towers, the both sides on multiple described bridge tower tops are the most logical
Cross multiple first suspension cable to be connected with described girder, the upper end of described limit tower by ground anchor cable and and its
Corresponding anchorage is connected, be provided with between adjacent two bridge towers that incline direction is contrary multiple second
Suspension cable and multiple 3rd suspension cable, in the upper end of described second suspension cable and described adjacent two bridge towers
The upper end of one bridge tower is connected, another in the upper end of described 3rd suspension cable and described adjacent two bridge towers
The upper end of one bridge tower is connected, the lower end of described second suspension cable and the lower end of the 3rd suspension cable all with
Girder span centre section between described adjacent two bridge towers is connected, described second suspension cable and the 3rd oblique pull
Rope intersects in the region near described girder span centre section, and the upper end of described middle tower is provided with for inciting somebody to action
The first attachment means that the second suspension cable upper end corresponding thereto is connected with the 3rd suspension cable upper end.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: described first connects dress
Put and include the middle tower diaphragm plate being arranged on middle tower and be arranged on the middle tower above described middle tower diaphragm plate
Anchorage beam, described middle tower anchorage beam and middle tower diaphragm plate be slidably matched, described middle tower anchorage beam
On be fixedly installed middle tower first anchor plate consistent with the second suspension cable incline direction and for
Middle tower the second anchor plate that 3rd suspension cable incline direction is consistent, described middle tower the first anchor plate away from
One end of middle tower diaphragm plate is provided with middle tower the first bearing plate, and described middle tower the second anchor plate is away from middle tower
One end of diaphragm plate is provided with middle tower the second bearing plate, the sidewall of described middle tower offers for described the
Middle tower the first drag-line duct that two suspension cables stretch into and the middle tower second stretched into for described 3rd suspension cable
Drag-line duct, described second suspension cable stretches into middle tower from described middle tower the first drag-line duct and is anchored at institute
Stating on tower the first bearing plate, described 3rd suspension cable stretches into middle tower from described middle tower the second drag-line duct
And be anchored on described middle tower the second bearing plate.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: described first connects dress
Put and also include middle tower lower slider plate and sliding on the middle tower being slidably matched with described middle tower lower slider plate
Dynamic plate, described middle tower lower slider plate is arranged on the end face of described middle tower diaphragm plate, and described middle tower slides
Plate is arranged on the bottom surface of described middle tower anchorage beam, and described middle tower upper sliding plate is by politef system
Becoming, described middle tower lower slider plate is made up of corrosion resistant plate.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: arrange on described middle tower
There is middle tower the first buffer stopper carrying out buffering for centering tower anchorage beam one end and for centering tower anchor
Gu the crossbeam other end carries out middle tower the second buffer stopper buffered.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: two described limit towers
Upper end be provided with for anchor cable upper end, ground is connected with suspension cable upper end corresponding thereto
Two attachment means.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: described second connects dress
Put and include the limit tower diaphragm plate being arranged on the tower of described limit and be arranged on above the tower diaphragm plate of described limit
Limit tower anchorage beam, described limit tower anchorage beam and Bian Ta diaphragm plate be slidably matched, and described limit tower anchors
Be fixedly installed on crossbeam with ground consistent limit tower the first anchor plate of anchor cable incline direction and with its phase
Limit tower the second anchor plate that corresponding suspension cable incline direction is consistent, described limit tower the first anchor plate is remote
Be provided with limit tower the first bearing plate from one end of limit tower diaphragm plate, described limit tower the second anchor plate is away from limit
One end of tower diaphragm plate is provided with limit tower the second bearing plate, and the sidewall of a described limit tower offers confession
Corresponding ground anchor cable stretches into Bian Ta limit tower the first drag-line being anchored on limit tower the first bearing plate
Duct and confession the 3rd suspension cable stretch into Bian Ta and are anchored at the limit tower second on limit tower the second bearing plate
Drag-line duct, the sidewall of another described limit tower offers and stretches into Bian Ta for the second suspension cable and anchor
Limit tower the 3rd drag-line duct and the corresponding ground anchor cable of confession on limit tower the second bearing plate stretch into
Limit tower limit tower the 4th drag-line duct being anchored on limit tower the first bearing plate.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: described second connects dress
Put and also include limit tower lower slider plate and sliding on the limit tower being slidably matched with described limit tower lower slider plate
Dynamic plate, described limit tower lower slider plate is arranged on the end face of described limit tower diaphragm plate, and described limit tower slides
Plate is arranged on the bottom surface of described limit tower anchorage beam, and described limit tower upper sliding plate is by politef system
Becoming, described limit tower lower slider plate is made up of corrosion resistant plate.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: arrange on the tower of described limit
There is limit tower the first buffer stopper carrying out buffering for opposite side tower anchorage beam one end and for opposite side tower anchor
Gu the crossbeam other end carries out limit tower the second buffer stopper buffered.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: the lower section of described girder
The position corresponding with described bridge tower is provided with the restraint device for limiting girder translation.
Above-mentioned a kind of suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: described restraint device bag
Including and be arranged on the first of bottom plane of main girder and fix post and second and fix post, described first fixes post is arranged on institute
Stating the side of bridge tower, described second fixes post is arranged on the opposite side of described bridge tower, and described first fixes
Post is connected by the first preventer guy with described bridge tower, and described second fixes post and described bridge tower passes through
Second preventer guy is connected.
The present invention compared with prior art has the advantage that
1, the novel and reasonable structure of the present invention.
2, the present invention relies on cross one another second suspension cable and the 3rd suspension cable to provide the pact to bridge tower
Shu Zuoyong, it is not necessary to rigidity bridge tower is set, thus improves the stress of bridge tower, greatly reduce bridge tower and base
The cost of plinth.And the deformation of limit tower is retrained by ground anchor cable, and the deformation of middle tower is intersected
The second suspension cable and the constraint of the 3rd suspension cable, the integral rigidity of bridge is improved, and reduces vapour
Bridge deformation under car load action.Concrete, described ground anchor cable, cross one another described second oblique
Drag-line and the 3rd suspension cable and described second suspension cable and the 3rd suspension cable are in the attachment means of bridge tower
Define a new Path of Force Transfer.Traditional multi pylon cable stayed bridge in when by carload, lotus
Carrying and pass to bridge tower by drag-line, relying primarily on bridge tower stiffness by itself to resist external loads, even if being
Auxiliary suspension cable (as middle top of tower is anchored in limit tower by spit of fland nine bridge) set up by bridge tower, also can only be at bridge tower
After producing certain deformation, auxiliary suspension cable just plays a role, and bridge tower stress is the most unfavorable.And the present invention
By cross one another described second suspension cable and the 3rd suspension cable in the first attachment means of tower top, nothing
Must through the deformation of bridge tower, just can make span centre carload directly by the second suspension cable pass to adjacent across
The 3rd suspension cable or passed to the second adjacent suspension cable by the 3rd suspension cable, improve bridge tower and be subject to
Power, the Suo Like of described second suspension cable and the 3rd suspension cable passes through beam section weight of its suspention described
Distribution between second suspension cable and the 3rd suspension cable and be automatically adjusted.
3, in the present invention, the carload of span centre part can pass through the second suspension cable and the 3rd suspension cable
Mutually transmission coordinate a road to be transferred to anchorage.Review tradition multi pylon cable stayed bridge, when automobile is positioned at main span
During span centre, owing to drag-line inclination angle is big, bridge tower producing horizontal component relatively big, bridge tower stress is the most unfavorable.
4, in the present invention, owing to girder span centre section is by the second suspension cable and the 3rd suspension cable both direction
Horizontal force, its axle power is less, will not in addition to girder span centre section girder produce pressure, thus
Effectively reduce girder axle power.
5, the present invention is by arranging the first attachment means in Zhong Ta upper end, it is possible to by corresponding thereto
Second suspension cable upper end and the 3rd suspension cable upper end effectively link together, described attachment means and bridge
Can slide to relative along bridge between tower so that the Suo Li on described second suspension cable and the 3rd suspension cable
On Suo Li without bridge tower deformation can the most mutually transmit.
6, the present invention is by being respectively provided with the second attachment means two Bian Ta upper ends, on a limit tower
Second attachment means can be by effective to the second suspension cable upper end corresponding thereto and anchor cable upper end, ground
Link together, and then make the Suo Li on described second suspension cable and the Suo Li on ground anchor cable can phase
Transmission mutually, the second attachment means on another limit tower can be by the 3rd suspension cable corresponding thereto
End and anchor cable upper end, ground effectively link together, and then make the Suo Lihe on described 3rd suspension cable
Suo Li on ground anchor cable can mutually transmit.
7, due to the fact that the inclination angle of the second suspension cable and the 3rd suspension cable is big, under dead load,
Owing to the second suspension cable, the 3rd suspension cable are arranged symmetrically with, and inclination angle is identical, and horizontal component can mutually support
Disappearing, under live loading, Qi Suoli has the biggest component in the horizontal direction, about gets one's things ready by arranging
Put, it is possible to girder is linked together with bridge tower, and then prevent moving horizontally of girder.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of multi pylon cable stayed bridge in prior art.
Fig. 2 is the structural representation of another kind of multi pylon cable stayed bridge in prior art.
Fig. 3 is the structural representation of the present invention.
Fig. 4 is the annexation schematic diagram of the present invention the first attachment means and middle tower.
Fig. 5 is the annexation schematic diagram of the present invention the second attachment means and limit tower.
Fig. 6 is the enlarged drawing in Fig. 3 at A.
Description of reference numerals:
No. 1 towers；2 No. two towers；
3 No. three towers；4 No. four towers；
5 anchorages；6 drag-lines；
7 ground anchor cables；8 girders；
8-1 girder span centre section；9 limit towers；
Tower the first drag-line duct, 9-1 limit；Tower the second drag-line duct, 9-2 limit；
Tower the 3rd drag-line duct, 9-3 limit；Tower the 4th drag-line duct, 9-4 limit；
Tower in 10；Tower the first drag-line duct in 10-1；
Tower the second drag-line duct in 10-2；11 first suspension cables；
12 second suspension cables；13 the 3rd suspension cables；
14 restraint devices；14-1 first fixes post；
14-2 second fixes post；14-3 the first preventer guy；
14-4 the second preventer guy；15 first attachment means；
Tower diaphragm plate in 15-1；Tower anchorage beam in 15-2；
Tower the first anchor plate in 15-3；Tower the second anchor plate in 15-4；
Tower the first bearing plate in 15-5；Tower the second bearing plate in 15-6；
Tower lower slider plate in 15-7；Tower upper sliding plate in 15-8；
Tower the first buffer stopper in 15-9；Tower the second buffer stopper in 15-10；
16 second attachment means；16-1 limit tower diaphragm plate；
16-2 limit tower anchorage beam；16-3 limit tower the first anchor plate；
16-4 limit tower the second anchor plate；16-5 limit tower the first bearing plate；
16-6 limit tower the second bearing plate；16-7 limit tower lower slider plate；
16-8 limit tower upper sliding plate；16-9 limit tower the first buffer stopper；
16-10 limit tower the second buffer stopper；17 end bay bridge piers；
18 anchoringwires.
Detailed description of the invention
A kind of suspension cable chiasma type multi pylon cable stayed bridge as shown in Figure 3, including girder 8, multiple bridge tower
With two anchorages 5, multiple described bridge towers include two limit towers 9 and are arranged between two limit towers 9
Middle tower 10, the both sides on multiple described bridge tower tops are all by multiple first suspension cables 11 and described girder
8 are connected, and the upper end of described limit tower 9 is connected with anchorage 5 corresponding thereto by ground anchor cable 7,
Multiple second suspension cables 12 and the multiple 3rd that incline direction is contrary it are provided with between adjacent two bridge towers
Suspension cable 13, a bridge tower in the upper end of described second suspension cable 12 and described adjacent two bridge towers
Upper end is connected, another bridge in the upper end of described 3rd suspension cable 13 and described adjacent two bridge towers
The upper end of tower is connected, the lower end of described second suspension cable 12 and the lower end of the 3rd suspension cable 13 all with
Girder span centre section 8-1 between described adjacent two bridge towers is connected, described second suspension cable 12 He
3rd suspension cable 13 intersects in the region near described girder span centre section 8-1, described middle tower 10
Upper end be provided with for by the second suspension cable 12 upper end corresponding thereto and the 3rd suspension cable 13
The first attachment means 15 that end is connected.
In the present embodiment, this multi pylon cable stayed bridge in use, owing to the second suspension cable 12 and the 3rd is oblique
Girder span centre section 8-1 is suspended in midair by drag-line 13 jointly, and owing to described second suspension cable 12 and the 3rd is oblique
Drag-line 13 intersects in the region near described girder span centre section 8-1, namely the second suspension cable
12 and the 3rd suspension cable 13 undertake about two points of girder span centre section 8-1 weight of a length of L respectively
One of, as it is shown on figure 3, when live loading is in main span b time, the second suspension cable in main span b
12 and the 3rd suspension cable 13 Suo Li increase, wherein, the 3rd suspension cable 13 in this main span b passes through
Suo Li is transferred to the adjacent main the second suspension cable 12 across a, the second suspension cable in main span b by bridge tower
Suo Li is transferred to another adjacent main the 3rd suspension cable 13 on c by bridge tower, with main span a by 12
Stress as a example by, owing to the weight of girder span centre section 8-1 of main span a is by cross one another second oblique on it
Drag-line 12 and the 3rd suspension cable 13 distribution on a rough average, i.e. the second suspension cable 12 He in main span a
3rd suspension cable 13 undertakes the half of girder span centre section 8-1 weight respectively, when main span b is by mobile load,
Now, due to the traction action of main span b upper 3rd suspension cable 13 second suspension cable 12 upper to main span a,
Upper second suspension cable 12 of main span a is made to assume responsibility for the girder span centre section 8-1 major part weight of main span a, by
Relation in active force Yu counteracting force so that the Suo Li of the second suspension cable 12 in main span a is greatly increased,
In like manner, it is also possible to make the Suo Li of the 3rd suspension cable 13 in main span c be greatly increased, and then make main span a
On the second suspension cable 12 match with the 3rd suspension cable 13 in main span b, simultaneously also make main span c
On the 3rd suspension cable 13 match with the second suspension cable 12 in main span b, and then undertake more main
Beam weight such that it is able to operative constraint loads the deformation across i.e. main span b, improves the stress loading bridge tower.
In the present embodiment, this multi pylon cable stayed bridge relies on cross one another second suspension cable 12 and the 3rd oblique
Drag-line 13 provides the effect of contraction to bridge tower, it is not necessary to arranges rigidity bridge tower, thus improves being subject to of bridge tower
Power, greatly reduces the cost of bridge tower and basis.And the deformation of limit tower 9 is by the pact of ground anchor cable 7
Bundle, the deformation of middle tower 10 is by cross one another second suspension cable 12 and the pact of the 3rd suspension cable 13
Bundle, the integral rigidity of bridge is improved, and reduces the bridge deformation under carload effect.Meanwhile,
Owing to girder span centre section 8-1 is by the second suspension cable 12 and level of the 3rd suspension cable 13 both direction
Power, its axle power is less, the girder 8 in addition to girder span centre section 8-1 will not be produced pressure, thus
Effectively reduce girder axle power.
In the present embodiment, the described lower end of the second suspension cable 12 and the lower end of the 3rd suspension cable 13 are mutually handed over
Fork, but not interconnected relationship.
In conjunction with Fig. 3 and Fig. 4, described first attachment means 15 includes the middle tower being arranged on middle tower 10
Diaphragm plate 15-1 and be arranged on the middle tower anchorage beam 15-2 above described middle tower diaphragm plate 15-1, institute
State middle tower anchorage beam 15-2 and middle tower diaphragm plate 15-1 to be slidably matched, described middle tower anchorage beam
Middle tower first anchor plate consistent with the second suspension cable 12 incline direction it is fixedly installed on 15-2
15-3 and for the middle tower second anchor plate 15-4 consistent with the 3rd suspension cable 13 incline direction, institute
State middle tower the first anchor plate 15-3 and one end of middle tower diaphragm plate 15-1 is provided with middle tower the first pressure-bearing
During plate 15-5, described middle tower the second anchor plate 15-4 are provided with away from one end of middle tower diaphragm plate 15-1
Tower the second bearing plate 15-6, the sidewall of described middle tower 10 offers for described second suspension cable 12
Middle tower the first drag-line duct 10-1 stretched into and the middle tower second stretched into for described 3rd suspension cable 13 draw
Suo Kongdao 10-2, described second suspension cable 12 stretches into middle tower from described middle tower the first drag-line duct 10-1
10 and be anchored on described middle tower the first bearing plate 15-5, described 3rd suspension cable 13 is from described middle tower
Second drag-line duct 10-2 stretches into middle tower 10 and is anchored on described middle tower the second bearing plate 15-6.
In the present embodiment, by arranging the first attachment means 15 in middle tower 10 upper end, it is possible to will be with it
The second corresponding suspension cable 12 upper end and the 3rd suspension cable 13 upper end effectively link together, and make
Obtain the Suo Li on described second the suspension cable 12 and Suo Li on the 3rd suspension cable 13 mutually to transmit.Specifically
, in use, when the second suspension cable 12 tension, middle tower anchors described first attachment means 15
Crossbeam 15-2 is moved to the left under the pulling force effect of the second suspension cable 12, when the 3rd suspension cable 13 is subject to
When drawing, middle tower anchorage beam 15-2 moves right under the pulling force effect of the 3rd suspension cable 13, passes through
The movement of middle tower anchorage beam 15-2 consumes unbalanced Suo Li, and then makes unbalanced Suo Li not
Bridge tower can be directly passed to, effectively improve bridge tower stress.
As shown in Figure 4, described first attachment means 15 also include middle tower lower slider plate 15-7 and for
The middle tower upper sliding plate 15-8 being slidably matched with described middle tower lower slider plate 15-7, described middle tower glides
Dynamic plate 15-7 is arranged on the end face of described middle tower diaphragm plate 15-1, described middle tower upper sliding plate 15-8
Being arranged on the bottom surface of described middle tower anchorage beam 15-2, described middle tower upper sliding plate 15-8 is by polytetrafluoro
Ethylene is made, and described middle tower lower slider plate 15-7 is made up of corrosion resistant plate.
In the present embodiment, by arranging middle tower upper sliding plate 15-8 and middle tower lower slider plate 15-7, energy
The middle tower anchorage beam 15-2 is enough made to move left and right smoothly, and by being made up of politef
Middle tower upper sliding plate 15-8 and the middle tower lower slider plate 15-7 being made of stainless steel, is effectively reduced
Coefficient of friction between middle tower upper sliding plate 15-8 and middle tower lower slider plate 15-7 so that middle tower anchors
Moving left and right of crossbeam 15-2 is more smooth.
As shown in Figure 4, described middle tower 10 is provided with enter for centering tower anchorage beam 15-2 one end
Middle tower the first buffer stopper 15-9 of row buffering and delaying for the centering tower anchorage beam 15-2 other end
Middle tower the second buffer stopper 15-10 of punching.Delay by arranging middle tower the first buffer stopper 15-9 and middle tower second
Rush block 15-10, it is possible to effectively prevent the rigid contact between middle tower anchorage beam 15-2 and middle tower 10,
And then reach the purpose of tower 10 in protection.
In conjunction with Fig. 3 and Fig. 5, the upper end of two described limit towers 9 is provided with for by ground anchor cable 7
The second attachment means 16 that end is connected with suspension cable upper end corresponding thereto.
In the present embodiment, by being respectively provided with the second attachment means 16, a limit two limit tower 9 upper ends
The second attachment means 16 on tower 9 can be by the second suspension cable 12 upper end and earth anchor corresponding thereto
Rope 7 upper end effectively links together, and then makes the Suo Li on described second suspension cable 12 and ground
Suo Li on anchor cable 7 can mutually transmit, and the second attachment means 16 on another limit tower 9 can
The 3rd suspension cable 13 upper end corresponding thereto and anchor cable 7 upper end, ground are effectively linked together,
And then the Suo Li on described 3rd the suspension cable 13 and Suo Li on ground anchor cable 7 can mutually be transmitted.
As it is shown in figure 5, described second attachment means 16 includes the limit tower being arranged on described limit tower 9
Diaphragm plate 16-1 and be arranged on the limit tower anchorage beam 16-2 above described limit tower diaphragm plate 16-1, institute
State limit tower anchorage beam 16-2 and Bian Ta diaphragm plate 16-1 to be slidably matched, described limit tower anchorage beam
Be fixedly installed on 16-2 with ground consistent limit tower the first anchor plate 16-3 of anchor cable 7 incline direction and
Limit tower the second anchor plate 16-4, described Bian Ta that suspension cable incline direction corresponding thereto is consistent
One anchor plate 16-3 is provided with limit tower the first bearing plate 16-5 away from one end of limit tower diaphragm plate 16-1,
Described limit tower the second anchor plate 16-4 is provided with limit tower second away from one end of limit tower diaphragm plate 16-1 and holds
Pressing plate 16-6, the sidewall of a described limit tower 9 offers and stretches into limit for corresponding ground anchor cable 7
Tower 9 limit tower the first drag-line duct 9-1 being anchored on limit tower the first bearing plate 16-5 and for the
Three suspension cables 13 stretch into limit tower 9 and are anchored at limit tower the second drag-line on limit tower the second bearing plate 16-6
Duct 9-2, the sidewall of another described limit tower 9 offers and stretches into limit tower 9 for the second suspension cable 12
And it is anchored at limit tower the 3rd drag-line duct 9-3 on limit tower the second bearing plate 16-6 and for right with it
The ground anchor cable 7 answered stretches into limit tower 9 and the limit tower the 4th that is anchored on limit tower the first bearing plate 16-5 draws
Suo Kongdao 9-4.
In the present embodiment, when the second attachment means 16 on a limit tower 9 in use, ground anchor cable 7
During tension, limit tower anchorage beam 16-2 is moved to the left, when another under the pulling force effect of ground anchor cable 7
During the 3rd suspension cable 13 tension of side, limit tower anchorage beam 16-2 is at the pulling force of the 3rd suspension cable 13
Move right under effect, consume unbalanced Suo Li by the movement of limit tower anchorage beam 16-2,
And then make unbalanced Suo Li will not be directly passed to limit tower 9, effectively improve being subject to of limit tower 9
Power；In like manner, when the second attachment means 16 on another limit tower 9 in use, ground anchor cable 7 is subject to
When drawing, limit tower anchorage beam 16-2 moves right under the pulling force effect of ground anchor cable 7, works as opposite side
The second suspension cable 12 tension time, limit tower anchorage beam 16-2 the second suspension cable 12 pulling force make
It is moved to the left under with, consumes unbalanced Suo Li by the movement of limit tower anchorage beam 16-2, enter
And make unbalanced Suo Li will not be directly passed to limit tower 9, effectively improve the stress of limit tower 9.
As it is shown in figure 5, described second attachment means 16 also include limit tower lower slider plate 16-7 and for
The limit tower upper sliding plate 16-8 being slidably matched with described limit tower lower slider plate 16-7, described limit tower glides
Dynamic plate 16-7 is arranged on the end face of described limit tower diaphragm plate 16-1, described limit tower upper sliding plate 16-8
Being arranged on the bottom surface of described limit tower anchorage beam 16-2, described limit tower upper sliding plate 16-8 is by polytetrafluoro
Ethylene is made, and described limit tower lower slider plate 16-7 is made up of corrosion resistant plate.
In the present embodiment, by arranging limit tower upper sliding plate 16-8 and Bian Ta lower slider plate 16-7, energy
The limit tower anchorage beam 16-2 is enough made to move left and right smoothly, and by being made up of politef
Limit tower upper sliding plate 16-8 and the limit tower lower slider plate 16-7 being made of stainless steel, is effectively reduced
Coefficient of friction between limit tower upper sliding plate 16-8 and Bian Ta lower slider plate 16-7 so that limit tower anchors
Moving left and right of crossbeam 16-2 is more smooth.
Enter as it is shown in figure 5, be provided with on described limit tower 9 for opposite side tower anchorage beam 16-2 one end
Limit tower the first buffer stopper 16-9 of row buffering and delaying for the opposite side tower anchorage beam 16-2 other end
Limit tower the second buffer stopper 16-10 of punching.Delay by arranging limit tower the first buffer stopper 16-9 and Bian Ta second
Rush block 16-10, it is possible to effectively prevent the rigid contact between limit tower anchorage beam 16-2 and limit tower 9,
And then reach to protect the purpose of limit tower 9.
As shown in Figure 6, the position that the lower section of described girder 8 is corresponding with described bridge tower be provided with for
Limit the restraint device 14 of girder 8 translation.
In the present embodiment, owing to the inclination angle of the second suspension cable 12 and the 3rd suspension cable 13 is big, in dead load
Under effect, and the second suspension cable 12 between adjacent two bridge towers and the symmetrical cloth of the 3rd suspension cable 13
Putting, inclination angle is identical, and horizontal component can be cancelled out each other, and under live loading, Qi Suoli is in the horizontal direction
There is the biggest component, by arranging restraint device, it is possible to girder is linked together with bridge tower, enter
And prevent moving horizontally of girder.
As shown in Figure 6, described restraint device 14 includes that being arranged on the first of girder 8 bottom surface fixes post
14-1 and second fixes post 14-2, and described first fixes post 14-1 is arranged on the side of described bridge tower,
Described second fixes post 14-2 is arranged on the opposite side of described bridge tower, described first fix post 14-1 and
Described bridge tower is connected by the first preventer guy 14-3, and described second fixes post 14-2 and described bridge
Tower is connected by the second preventer guy 14-4.
In the present embodiment, described restraint device 14 passes through the first preventer guy 14-3 by bridge tower and bridge tower
The girder 8 of side effectively connects, by the second preventer guy 14-4 by bridge tower and bridge tower opposite side
Girder 8 effectively connects, its simple in construction, effectively achieves the purpose to girder 8 constraint.
The above, be only presently preferred embodiments of the present invention, not impose any restrictions the present invention, all
It is any simple modification, change and equivalence above example made according to the technology of the present invention essence
Reconfiguration, all still falls within the protection domain of technical solution of the present invention.
Claims (10)
1. a suspension cable chiasma type multi pylon cable stayed bridge, it is characterised in that: include girder (8), many
Individual bridge tower and two anchorages (5), multiple described bridge towers include two limit towers (9) and are arranged on two
Middle tower (10) between limit tower (9), the both sides on multiple described bridge tower tops are all by multiple first
Suspension cable (11) is connected with described girder (8), and the upper end on described limit tower (9) is by ground anchor cable
(7) it is connected with anchorage (5) corresponding thereto, between adjacent two bridge towers, is provided with inclination side
To contrary multiple second suspension cables (12) and multiple 3rd suspension cable (13), described second oblique pull
The upper end of rope (12) is connected with the upper end of a bridge tower in described adjacent two bridge towers, and the described 3rd
The upper end of suspension cable (13) is connected with the upper end of another bridge tower in described adjacent two bridge towers, institute
State the lower end of the lower end of the second suspension cable (12) and the 3rd suspension cable (13) all with described adjacent two
Girder span centre section (8-1) between bridge tower is connected, described second suspension cable (12) and the 3rd oblique
Drag-line (13) intersects in the region near described girder span centre section (8-1), described middle tower (10)
Upper end be provided with for by the second suspension cable (12) upper end corresponding thereto and the 3rd suspension cable
(13) the first attachment means (15) that upper end is connected.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 1, its feature exists
In: described first attachment means (15) includes the middle tower diaphragm plate (15-1) being arranged on middle tower (10)
Be arranged on described middle tower diaphragm plate (15-1) top middle tower anchorage beam (15-2), described in
Tower anchorage beam (15-2) and middle tower diaphragm plate (15-1) are slidably matched, described middle tower anchorage beam
(15-2) middle tower first anchor consistent with the second suspension cable (12) incline direction it is fixedly installed on
Gu plate (15-3) and anchoring for the middle tower second consistent with the 3rd suspension cable (13) incline direction
Plate (15-4), described middle tower the first anchor plate (15-3) is away from the one of middle tower diaphragm plate (15-1)
End be provided with middle tower the first bearing plate (15-5), described middle tower the second anchor plate (15-4) away from
One end of tower diaphragm plate (15-1) is provided with middle tower the second bearing plate (15-6), described middle tower (10)
Sidewall on offer middle tower the first drag-line duct (10-1) stretched into for described second suspension cable (12)
Middle tower the second drag-line duct (10-2) stretched into described 3rd suspension cable (13) of confession, described second
Suspension cable (12) stretches into middle tower (10) from described middle tower the first drag-line duct (10-1) and is anchored at
On described middle tower the first bearing plate (15-5), described 3rd suspension cable (13) is from described middle tower second
Drag-line duct (10-2) is stretched into middle tower (10) and is anchored at described middle tower the second bearing plate (15-6)
On.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 2, its feature exists
In: described first attachment means (15) also includes middle tower lower slider plate (15-7) and for described
The middle tower upper sliding plate (15-8) that middle tower lower slider plate (15-7) is slidably matched, described middle tower glides
Dynamic plate (15-7) is arranged on the end face of described middle tower diaphragm plate (15-1), described middle tower upper sliding plate
(15-8) bottom surface of described middle tower anchorage beam (15-2), described middle tower upper sliding plate it are arranged on
(15-8) being made up of politef, described middle tower lower slider plate (15-7) is made up of corrosion resistant plate.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 2, its feature exists
In: it is provided with on described middle tower (10) and buffers for centering tower anchorage beam (15-2) one end
Middle tower the first buffer stopper (15-9) and delay for centering tower anchorage beam (15-2) other end
The middle tower the second buffer stopper (15-10) of punching.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 1, its feature exists
Be provided with in: the upper end of two described limits tower (9) for by ground anchor cable (7) upper end and with its phase
The second attachment means (16) that corresponding suspension cable upper end is connected.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 5, its feature exists
In: described second attachment means (16) includes the limit tower diaphragm plate being arranged on described limit tower (9)
(16-1) with limit tower anchorage beam (16-2) being arranged on above described limit tower diaphragm plate (16-1),
Described limit tower anchorage beam (16-2) and limit tower diaphragm plate (16-1) are slidably matched, described limit tower anchor
Gu be fixedly installed the limit tower first consistent with ground anchor cable (7) incline direction on crossbeam (16-2)
Anchor plate (16-3) and consistent limit tower the second anchor plate of suspension cable incline direction corresponding thereto
(16-4), described limit tower the first anchor plate (16-3) is away from the one end on limit tower diaphragm plate (16-1)
Being provided with limit tower the first bearing plate (16-5), described limit tower the second anchor plate (16-4) is away from limit tower
One end of diaphragm plate (16-1) is provided with limit tower the second bearing plate (16-6), described limit tower (9)
Sidewall on offer and stretch into limit tower (9) and be anchored at Bian Ta for corresponding ground anchor cable (7)
Limit tower the first drag-line duct (9-1) on one bearing plate (16-5) and confession the 3rd suspension cable (13)
Stretch into limit tower (9) limit tower the second drag-line duct being anchored on limit tower the second bearing plate (16-6)
(9-2), the sidewall on another described limit tower (9) offers confession the second suspension cable (12) to stretch into
Limit tower (9) is also anchored at the limit tower the 3rd drag-line duct (9-3) on limit tower the second bearing plate (16-6)
And stretch into limit tower (9) for corresponding ground anchor cable (7) and be anchored at limit tower the first bearing plate
(16-5) the limit tower the 4th drag-line duct (9-4) on.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 6, its feature exists
In: described second attachment means (16) also includes limit tower lower slider plate (16-7) and for described
Limit tower upper sliding plate (16-8) that limit tower lower slider plate (16-7) is slidably matched, described limit tower glides
Dynamic plate (16-7) is arranged on the end face of described limit tower diaphragm plate (16-1), described limit tower upper sliding plate
(16-8) bottom surface of described limit tower anchorage beam (16-2), described limit tower upper sliding plate it are arranged on
(16-8) being made up of politef, described limit tower lower slider plate (16-7) is made up of corrosion resistant plate.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 6, its feature exists
In: it is provided with on described limit tower (9) and buffers for opposite side tower anchorage beam (16-2) one end
Limit tower the first buffer stopper (16-9) and delay for opposite side tower anchorage beam (16-2) other end
The limit tower the second buffer stopper (16-10) of punching.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 1, its feature exists
In: the position that the lower section of described girder (8) is corresponding with described bridge tower is provided with for limiting girder
(8) restraint device (14) translated.
A kind of suspension cable chiasma type multi pylon cable stayed bridge the most according to claim 9, its feature exists
In: described restraint device (14) includes that being arranged on the first of girder (8) bottom surface fixes post (14-1)
Fixing post (14-2) with second, described first fixes post (14-1) is arranged on the side of described bridge tower,
Described second fixes post (14-2) is arranged on the opposite side of described bridge tower, and described first fixes post (14-1)
Being connected by the first preventer guy (14-3) with described bridge tower, described second fixes post (14-2)
It is connected by the second preventer guy (14-4) with described bridge tower.
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| CN201610573220.2A CN106012796B (en) | 2016-07-20 | 2016-07-20 | A kind of suspension cable chiasma type multi pylon cable stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610573220.2A CN106012796B (en) | 2016-07-20 | 2016-07-20 | A kind of suspension cable chiasma type multi pylon cable stayed bridge |
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| CN106012796A true CN106012796A (en) | 2016-10-12 |
| CN106012796B CN106012796B (en) | 2017-09-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608064A (en) * | 2020-05-28 | 2020-09-01 | 江苏华通工程检测有限公司 | Double-width four-cable-plane multi-tower cable-stayed bridge with annular support stump flowerpot-shaped bracket |
| CN112832114A (en) * | 2020-12-10 | 2021-05-25 | 中铁第四勘察设计院集团有限公司 | Stay cable bridge and anchoring optimization method thereof |
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| CN205821980U (en) * | 2016-07-20 | 2016-12-21 | 西安科技大学 | A kind of suspension cable chiasma type multi pylon cable stayed bridge |
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| WO2005121456A1 (en) * | 2004-06-09 | 2005-12-22 | Incorporated Administrative Agency Public Works Research Institute | Cable stayed suspension bridge making combined use of one-box and two-box girders |
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| CN103437276A (en) * | 2013-08-30 | 2013-12-11 | 东南大学 | Multi-tower cable-stayed bridge capable of reducing buffeting reaction caused by main girder and bridge tower wind |
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| CN111608064A (en) * | 2020-05-28 | 2020-09-01 | 江苏华通工程检测有限公司 | Double-width four-cable-plane multi-tower cable-stayed bridge with annular support stump flowerpot-shaped bracket |
| CN111608064B (en) * | 2020-05-28 | 2021-08-17 | 江苏华通工程检测有限公司 | Double-width four-cable-plane multi-tower cable-stayed bridge with annular support stump flowerpot-shaped bracket |
| CN112832114A (en) * | 2020-12-10 | 2021-05-25 | 中铁第四勘察设计院集团有限公司 | Stay cable bridge and anchoring optimization method thereof |
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| CN106012796B (en) | 2017-09-01 |
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