CN206204758U - Tower anchor unifies suspension bridge - Google Patents
Tower anchor unifies suspension bridge Download PDFInfo
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- CN206204758U CN206204758U CN201621078907.0U CN201621078907U CN206204758U CN 206204758 U CN206204758 U CN 206204758U CN 201621078907 U CN201621078907 U CN 201621078907U CN 206204758 U CN206204758 U CN 206204758U
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- sarasota
- horizon bar
- main push
- towing rope
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Abstract
The utility model discloses a kind of tower anchor unification suspension bridge, is mainly made up of main push-towing rope, hoist cable, Sarasota, horizon bar and girder.Main push-towing rope bypasses tower top, horizon bar, bottom of towe successively, is finally anchored between the Sarasota on suspension bridge both sides.Tower anchor unifies suspension bridge has larger difference with the Sarasota form of traditional suspension bridge, and the line of eccentricity of Sarasota is curve, can make dorsal funciculus around tower rotate when, moment of flexure is not produced to tower；Its wide line is curve, it is ensured that material can be fully used.On the premise of traditional earth anchor Suspension Bridges are kept, the utility model can remove bulky anchorage, column foot unites two into one with anchorage, reduce the computational length of the main push-towing rope of connection anchorage, reduce main push-towing rope stress and amplitude under dead load, main push-towing rope Horizontal Tension can be by reaction at basement and girder axle power common equilibrium, and basic stress is for obliquely.Tower anchor unification suspension bridge stress is more reasonable, on the premise of structure safety, economy, durability is ensured, it is easier to accomplish the unification of power and beauty.
Description
Technical field
The utility model belongs to a kind of suspension bridge, and in particular to a kind of tower anchor unification suspension bridge.
Background technology
Suspension bridge structure has that stress performance is good, span ability big, light and handy attractive in appearance, shock resistance is strong, structure type is various
And it is good to landform adaptability the features such as, in hindrance to traffics such as many leap great rivers, high mountain gorge, bay harbours,
Often as first-selected bridge type.Therefore, people also have devised various Suspension bridge structures.As Chinese Patent Application No. is
201510012845.7 disclose a kind of suspension bridge of torsional rigidity high, including girder, Sarasota, main push-towing rope and suspension rod, and main push-towing rope is one
Bar and positioned at girder longitudinal center facade, suspension rod is distributed in girder both lateral sides for suspending girder in midair by main push-towing rope so that main push-towing rope,
It is the structure of spatial triangle that suspension rod and girder form cross section；It utilizes the stability of triangle, forms one similar to three
Angular box-beam structure, fundamentally frequently, torsion is lost under directly improving quiet wind for the overall torsional rigidity of raising suspension bridge and torsion shake
Steady critical wind velocity, it is also possible to the ratio for reversing shake frequency and vertical shake frequency is increased, so as to improve the critical wind of electric shock
Speed, also ensures that the security of the suspension bridge compared with large span；Also, do not increase the material and cost of existing suspension bridge, and
In fact, main push-towing rope is one, cross-sectional area can be increased, and increase suspension rod quantity and cross-sectional area, further increase torsional rigidity.
And for example Chinese Patent Application No. discloses a kind of self-anchored suspension bridge, including Sarasota basis, Sarasota, rope for 200920043292.1
Saddle, girder, main push-towing rope and suspension rod, the concrete filled steel tube combination structure for the concrete perfusion in empty steel pipe being provided with the girder and being formed
Part；Using concrete filled steel tube girder, cost, and easy construction can be not only reduced, can obvious accelerating construction progress.For another example
Chinese Patent Application No. discloses a kind of bridge structure for 201120102496.5, includes runway beam, bridge tower, anchorage, holds
Weight main push-towing rope, it is characterized in that, load-bearing main push-towing rope is combined by a main rope and Duo Gen rope, spaced apart since Sarasota
Several ropes are separated from load-bearing main push-towing rope, is connected with track beam, a point cable device is provided with the secondary rope separation on load-bearing main push-towing rope.Hold
Weight main push-towing rope is made up of secondary rope and main rope, and with fixture combination together；Dividing cable utensil has secondary rope to separate shape from load-bearing main push-towing rope
Inner chamber, and have fastener, can be fixed on load-bearing main push-towing rope；Its structure can optimize the stress of suspension bridge load-bearing main push-towing rope, section
About material.
But generally conventional formula earth anchored suspension bridge, it is necessary to build bulky anchorage to anchor main push-towing rope, this is just
Cause in the place of geological condition difference, the foundation engineering amount of anchorage structures is very big, often the difficult point as engineering；Ground anchor type hangs
Cable bridge anchorage and Anchor Foundation occupy the considerable part of construction costs, the important side as influence Suspension bridge structure economy
Face；In urban area or tourist district, bulky anchorage is built, environmental beauty can also be had a negative impact.
Utility model content
The purpose of this utility model is for some shortcomings present in prior art, there is provided a kind of tower anchor unification is outstanding
Cable bridge, is mainly made up of main push-towing rope, hoist cable, Sarasota, horizon bar and girder.Horizon bar intersects vertically with Sarasota, with bridge floor with it is high when,
Can be used as a part for access bridge, main push-towing rope bypasses tower top, horizon bar, bottom of towe successively, is finally anchored on batter post bottom or horizon bar.Tower
Anchor unifies suspension bridge has larger difference with the Sarasota form of traditional suspension bridge, and the line of eccentricity of Sarasota is curve, can make dorsal funciculus around
When tower is rotated, moment of flexure is not produced to tower；Its wide line is curve, it is ensured that material can be fully used.Keeping traditionally
On the premise of anchor Suspension Bridges, the utility model can remove bulky anchorage, and column foot unites two into one with anchorage, reduces
The computational length of the main push-towing rope of anchorage is connected, reduces main push-towing rope stress and amplitude under dead load, main push-towing rope Horizontal Tension can be by base
Plinth counter-force and stiff girder axle power common equilibrium, basic stress is for obliquely.Tower anchor unification suspension bridge stress is more reasonable, is ensureing
On the premise of structure safety, economy, durability, it is easier to accomplish the unification of power and beauty.
The utility model takes following technical scheme to realize above-mentioned purpose：
A kind of tower anchor unifies suspension bridge, is mainly made up of main push-towing rope, hoist cable, Sarasota, horizon bar and girder；Described hoist cable is equal
It is even to be arranged between main push-towing rope and girder；Described horizon bar intersects vertically with Sarasota；The bottom of described Sarasota has poured Sarasota
Basis, and it is provided with steering block II in the bottom on Sarasota basis；Cable saddle is provided with the top of Sarasota；Described horizontal boom end sets
There is steering block I；The end of described main push-towing rope bypasses cable saddle, steering block I, the Sarasota basis of horizontal boom end at the top of Sarasota successively
The steering block II of bottom, its anchorage point is eventually located between the Sarasota on suspension bridge both sides；
According to the anchorage point of main push-towing rope end, there is following design：
Design one, is additionally provided with batter post；The bottom of described batter post pours inclined column foundation；Described horizon bar, batter post difference
The both sides of Sarasota are located at, batter post is two power bars, and horizon bar, Sarasota and batter post have a common intersection point；Described horizon bar
End set up auxiliary pier II, the bottom of auxiliary pier II pours the basis of auxiliary pier II；Described main push-towing rope end is finally anchored at batter post
On the basis of；Described girder and king-tower connected mode are affixed or when being hinged, and main push-towing rope Horizontal Tension is by Sarasota basis, inclined column foundation
With the axle power common equilibrium of girder；
Design two, is additionally provided with batter post；Described horizon bar connection Sarasota, and be connected with girder, while the two of horizon bar
Auxiliary pier II, auxiliary pier I are set up in end respectively；Described batter post be two power bars, be located at Sarasota inner side, and horizon bar, Sarasota and
Batter post has a common intersection point；The described bottom of auxiliary pier II pours the basis of auxiliary pier II；The bottom of described batter post and auxiliary
The bottom of pier I is intersected, and pours mutual foundation；Described main push-towing rope end is finally anchored at the horizontal rod end for setting up auxiliary pier I
In portion；Described girder and horizon bar connected mode be it is affixed or when being hinged, main push-towing rope Horizontal Tension can by Sarasota basis, share base
The axle power common equilibrium of plinth and girder；
Design three, described horizon bar connection Sarasota, and be connected with girder, while setting up auxiliary respectively at the two ends of horizon bar
Help pier II, auxiliary pier I；Described auxiliary pier II, the bottom of auxiliary pier I pour the basis of auxiliary pier II, the basis of auxiliary pier I respectively；
Described main push-towing rope end is finally anchored on the horizontal boom end for setting up auxiliary pier I；Described girder and horizon bar connected mode
For affixed or when being hinged, main push-towing rope Horizontal Tension can be by Sarasota basis and the axle power common equilibrium of girder；
Design four, described horizon bar is located at the outside of Sarasota, and auxiliary pier II is set up in the end of described horizon bar, auxiliary
The bottom of pier II pours the basis of auxiliary pier II；It is provided with the auxiliary pier III of support girder on the inside of Sarasota, and with concrete by bridge
It is an entirety that Sarasota and auxiliary pier III below face are poured, and Sarasota basis is together as Sarasota column foot；Described main push-towing rope end
Portion is finally anchored at Sarasota column foot inner side；Described girder and king-tower connected mode are affixed or when being hinged, main push-towing rope Horizontal Tension
Can be by Sarasota basis and the axle power common equilibrium of girder.
In the utility model, act on the load on girder and follow following Path of Force Transfer：Girder → hoist cable → main push-towing rope →
Between Sarasota → horizon bar → Sarasota basis → king-tower of wraparound two.
The utility model is further illustrated, and is set at the anchoring of main push-towing rope end and is dissipated cable saddle.
The utility model is further illustrated, and the line of eccentricity of described Sarasota is curve, can make dorsal funciculus around Sarasota rotate when,
Moment of flexure is not produced to Sarasota；The width of described Sarasota is curve, it is ensured that material can be fully used；A left side at the top of Sarasota
Within angle α and β that right both ends of the surface are formed respectively with main push-towing rope, main push-towing rope are freely bypassed the tower top of Sarasota with β angles, reduce dorsal funciculus long
Degree.
The utility model is further illustrated, and the setting height(from bottom) of described horizon bar is h, i.e. horizon bar erecting to Sarasota basis
Straight distance；The height of described Sarasota is the vertical distance of H, i.e. Sarasota tower top to Sarasota basis；Do not considering rod member deadweight feelings
Under condition, whenThe downward vertical force component of main push-towing rope is undertaken by auxiliary pier II, described horizon bar only receives axial compressive force；WhenDescribed horizon bar only receives axial compressive force；WhenThe upward vertical force component of main push-towing rope, institute are undertaken by auxiliary pier II
The horizon bar stated only receives axial compressive force；Described horizon bar adjusts length according to β angles.
The utility model is further illustrated, the left side at the top of Sarasota during the face perpendicularly to the axis of described Sarasota and described
During the within angle α and β equal that right both ends of the surface are formed respectively with main push-towing rope, described Sarasota axial compression, it is made a concerted effort straight down.
The utility model is further illustrated, and described horizon bar uses steel construction lattice column form or steel case or coagulation
Native box is made.
The utility model is further illustrated, described Sarasota basic stress obliquely, to be arranged by appropriate structure and
Using open cut foundation mode, in design one, Sarasota basis and the basis of auxiliary pier II, inclined column foundation can be made to pour as one whole
Body basis；In design two, Sarasota basis and the basis of auxiliary pier II can be made, mutual foundation is poured is a mass-type foundation；
In design three, Sarasota basis and the basis of auxiliary pier II can be made, the basis of auxiliary pier I pours is a mass-type foundation.
The utility model is further illustrated, when described girder participates in sharing main push-towing rope horizontal component, if described girder is
Concrete filled steel tube, prestressing force is applied using described girder axle power to girder.
The utility model is further illustrated, and it, as a part for bridge floor, is also anchor beam that described horizon bar is both.Work as Sarasota
When higher, described horizon bar can be highly inconsistent with bridge floor.
In the utility model, when geological state is preferable, shallow foundation can be directly used；When geological state is general, in Sarasota
Drive piles bottom；When geological state is poor, the cushion cap institute structure of the stake and connection stake top squeezed into by many or sunk in soil need to be made
Into basis；
In the utility model, main push-towing rope is the main supporting member of this system, is primarily subjected to pulling force；Hoist cable plays connection master
The effect of beam and main push-towing rope, only transmits the loads such as the component of load, girder, bridge deck and mobile load and is transmitted to main push-towing rope by hoist cable；Rope
Tower plays a part of to support main push-towing rope, is primarily subjected to pressure；Suo Li is transmitted to Sarasota by horizon bar, and power is reached basis by Sarasota.
Advantage of the present utility model：
On the premise of traditional earth anchor Suspension Bridges are kept, tower anchor unification suspension bridge does not need bulky anchor to this bridge
Heavy stone used as an anchor, by reaction at basement and stiff girder axle power common equilibrium, basic stress is obliquely, by appropriate structure to main push-towing rope Horizontal Tension
Open cut foundation is arranged and used, the basis of tower and other bases can also be made to unite two into one.Tower anchor is unified suspension bridge and is hanged with tradition
The king-tower form of cable bridge has larger difference；The reasonable line of eccentricity of king-tower for being proposed can make dorsal funciculus around tower rotate when, tower is not produced
Raw moment of flexure；The derived rational width curve of institute can ensure that material can be fully used.
1. used as a kind of new system suspension bridge, it does not need huge anchorage, easy construction, short time limit, tool to the utility model
There is more preferable economy.
2. king-tower section is transformed into long and narrow rectangle, cross sectional moment of inertia increase, so as to improve section by reasonable line of eccentricity
Bending rigidity, therefore interior anchor suspension bridge is under traveling load and temperature load effect, its tower top displacement and traditional earth anchor suspension cable
Bridge is compared can have been reduced.
3. main push-towing rope Horizontal Tension of the present utility model can be by reaction at basement and stiff girder axle power common equilibrium, basic stress
Obliquely, arranged by appropriate structure and use open cut foundation, the basis of tower and auxiliary pier, the base of inclined column foundation can also be made
Plinth is combined into a basis.
4. when Sarasota basis and pressure-bearing auxiliary pier foundation use open cut foundation, can excavate simultaneously, easy construction, economy
It is good.
5. set up on the inside of king-tower when putting batter post, the lateral rigidity of king-tower can be increased.
6., because main push-towing rope is divided into upper and lower two parts by horizon bar, compared with traditional earth anchor suspension bridge, connection anchorage is reduced
The computational length of section main push-towing rope, so as to reduce the stress and amplitude of main push-towing rope under dead load, while it is long to have saved dorsal funciculus rope.
Brief description of the drawings
In Fig. 1 in the utility model embodiment 1 elevation.
In Fig. 2 in the utility model embodiment 2 elevation.
In Fig. 3 in the utility model embodiment 3 elevation.
In Fig. 4 in the utility model embodiment 4 elevation.
Fig. 5-Figure 14 is the force analysis figure that the utility model tower anchor unifies suspension bridge.
Reference：1- main push-towing ropes；2- hoist cables；3- Sarasotas；4- auxiliary piers II；5- horizon bars；6- girders；7- batter posts；8- ropes
Tower foundation；The basis of 9- auxiliary piers II；10- inclined column foundations；11- cable saddles；12- steering blocks I；13- steering blocks II；14- dissipates cable saddle；
15- auxiliary piers I；16- mutual foundations；The basis of 17- auxiliary piers I.
Specific embodiment
Mechanics principle of the present utility model is illustrated with reference to Fig. 5-Figure 14：
1. mechanics principle
For convenience of the stress characteristic for analyzing suspension bridge, ignore the deadweight of horizon bar, batter post and auxiliary pier, as shown in figure 5, each symbol
Number meaning is as follows：
S--- main push-towing rope tension force； Gt--- Sarasota gravity；
G1,G2,G3--- basic gravity； X1,Y1,X2,Y2,Y3--- subgrade reaction；
N1z--- top Sarasota axle power； Q1z--- top Sarasota is sheared；
N2z--- bottom Sarasota axle power； Q2z--- bottom Sarasota is sheared；
N3--- BC sections of horizon bar axle power； N4--- CD sections of horizon bar axle power；
N5--- the axle power of auxiliary pier I； N6--- the axle power of auxiliary pier II；
Nc--- batter post axle power； Nb--- girder axle power；
α, β, θ, γ, τ --- as shown in Figure 5；L--- Sarasota tower tops side long；
A--- Sarasota areas.
1) subgrade reaction
As shown in fig. 7, being made a concerted effort to balance from horizontal direction：
X2=Nc cosτ-S (1)
As shown in figure 8, making a concerted effort to balance from vertical：
Y2=G2+Nc sinτ+Ssinθ (2)
As shown in fig. 6, making a concerted effort to balance from vertical：
Y3=G3+S(cosγ-cosβ) (3)
In formula
E in above formula is as shown in figure 12.As shown in figure 5, from horizontally and vertically making a concerted effort to balance：
X1=S (sin α+1)-Nb-Nc cosτ (5)
Y1=G1+Gt+S(cosα-sinθ+cosβ-cosγ)-Nc sinτ (6)
Subgrade reaction can be obtained by formula (1), formula (2), formula (3), formula (5), formula (6).
2) axle power of horizon bar and auxiliary pier
As shown in figure 9, from horizontally and vertically making a concerted effort to balance：
N3=S (sin β+sin γ) (7)
N6=S (cos τ-cos β) (8)
As shown in Figure 10, from horizontally and vertically making a concerted effort to balance：
N4=S cos θ+Nb (9)
N5=S sin θs (10)
Horizon bar axle power can be obtained by formula (7), formula (9)；Auxiliary pier axle power can be obtained by formula (10), formula (8).
3) Sarasota internal force, eccentric curve, width curve
(1) Sarasota internal force
As shown in figure 11, according to horizontally and vertically making a concerted effort to balance, the internal force that can respectively obtain top Sarasota z location is as follows：
Q1z=S (sin α-sin β) (11)
As shown in figure 12, can similarly obtain bottom Sarasota internal force is：
Q2z=S (sin α+sin γ-cos θ)-Nb-Nc cosτ (13)
(2) Sarasota eccentric curve
As shown in figure 13, top Sarasota is divided into n sections, each section can be approximate rectangular, is per segment length：
Therefore,
zi=i Δs1, (i=0,1, n) (16)
The centre of form to i-th section takes square, is that zero can release by resultant moment：
From (17) formula：
Wherein
N1=S (cos α+cos β), (19)
Q1=S (sin α-sin β), (20)
(x can be obtained by formula (16), (18)i,yi), with interpolation polynomial P1(x) approximate line of eccentricity f1(x), interpolation condition
For：
P1(xi)=f1(xi), (i=0,1, n) (22)
Assuming that P1X () is：
P1(x)=a1q1 (23)
In formula：
a1=(a0,a1,···,an) (24)
q1=(1, x, xn) (25)
Can be released by formula (22)：
aX1=Z1 (26)
In formula：
Z1 T=(z0,z1,···,zn) (28)
Can be released by formula (26)：
A=Z1X1 -1 (29)
Coefficient array a can be obtained by formula (29), so that line of eccentricity f1X () can be by interpolation polynomial P1X () is expressed as：
P1(x)=Z1X1 -1q1 (30)
Similarly, top Sarasota is divided into m sections, the coordinate of bottom Sarasota is iterative to be：
In formula
N2=S (cos α+sin γ-cos θ)-Nb-Nccosτ (32)
x0=e, z0=H-h (37)
E in above formula can be asked by formula (17).Similarly, the line of eccentricity f of bottom Sarasota2X () can be by interpolation polynomial P2(x) table
It is shown as：
P2(x)=Z2X2 -1q2 (38)
In formula：
a2=(a0,a1,···,am) (39)
q2=(1, x, xm) (40)
Z2 T=(z0,z1,···,zm) (42)
(3) Sarasota width curve
As shown in figure 14, keep king-tower area A constant, then have：
[2f1 -1(x)+L]·2|W1(x) |=A (43)
From (43) formula：
If W1X the approximate function of () is Q1X (), then have：
Similarly, the width curve W of bottom Sarasota2X the approximate function of () is represented by：
Top Sarasota internal force can be obtained by formula (11), formula (12) formula (13), formula (14), by formula (30), formula (38) can be respectively
Obtain the approximate function of top Sarasota and bottom Sarasota eccentric curve, by formula (44), formula (46) can obtain respectively top Sarasota and
The approximate function of bottom Sarasota wide line.
In sum, the computation model of design two has H, h, β, θ, Nc、NbDeng basic parameter, can design according to actual needs
Parameter, structural internal force, subgrade reaction, line of eccentricity, wide line are obtained according still further to calculating formula established above.The derived line of eccentricity of institute
It is curve, dorsal funciculus can be made when being rotated around tower, moment of flexure is not produced to tower；The derived wide line of institute is curve, it is ensured that material is obtained
To making full use of.Below the mechanics principle of design two is only analyzed, other three kinds designs can be similar to be analyzed by above-mentioned side.
Structure design of the present utility model is further described with reference to the accompanying drawings and examples.
Embodiment 1：
It is identical that the span arrangement of the tower anchor unification suspension bridge of the present embodiment raises the Yangtze Bridge with profit.As shown in figure 1, a kind of
Tower anchor unifies suspension bridge, is mainly made up of main push-towing rope 1, hoist cable 2, Sarasota 3, horizon bar 5, girder 6 and batter post 7；Described hoist cable 2 is equal
It is even to be arranged between main push-towing rope 1 and girder 6；Described horizon bar 5 intersects vertically with Sarasota 3；Described horizon bar 5, batter post 7 are distinguished
The both sides of Sarasota 3 are located at, batter post 7 is two power bars, and horizon bar 5, Sarasota 3 and batter post 7 have a common intersection point；Described is oblique
The bottom of post 7 pours inclined column foundation 10；Auxiliary pier II 4 is set up in the end of described horizon bar 5, and the bottom of auxiliary pier II 4 pours auxiliary
Help the basis 9 of pier II；The bottom of described Sarasota 3 has poured Sarasota basis 8, and is provided with steering block in the bottom on Sarasota basis 8
Ⅱ13；Cable saddle 11 is provided with the top of Sarasota 3；The described end of horizon bar 5 is provided with steering block I 12；The end of described main push-towing rope 1
Cable saddle 11, the steering block II 13 of 8 bottoms of steering block I 12, Sarasota basis of the end of horizon bar 5 at the top of Sarasota 3 are bypassed successively, its
Anchorage point is eventually located on inclined column foundation 10；Described girder 6 and the connected mode of king-tower 3 are affixed or when being hinged, the water of main push-towing rope 1
Sheet power by Sarasota basis 8, inclined column foundation 10 and girder 6 axle power common equilibrium.
The line of eccentricity of the Sarasota of Sarasota 3 be curve, can make dorsal funciculus around Sarasota 3 rotate when, moment of flexure is not produced to Sarasota 3；Sarasota 3
Width be curve, it is ensured that material can be fully used；Horizon bar 5 is down slightly biased to move the middle part of Sarasota 3, with bridge floor with height,
As a part for access bridge, by axle power and shearing power effect, the line of eccentricity of horizon bar 5 is adjusted to oblique axis, made at horizon bar 5
In free from moment.Scattered cable saddle 14 is provided with the anchoring of the end of main push-towing rope 1.β is taken as 45 °, γ is taken as 45 °, θ is taken as 50 °, α takes
It is 60 °, Nc1.2 times of main push-towing rope tension force are taken as, Sarasota, horizon bar use steel box structure, girder to use steel construction.
According to conventional design, huge anchorage and deep foundation need to be set, be computed, compared with profit raises the Yangtze Bridge, save
Anchorage is removed, this expense is to save 2.1 hundred million yuan.Tower anchor unifies suspension bridge due to setting up auxiliary pier, horizon bar, and this expense is 0.6
Hundred million.Therefore, compared with profit raises the common earth anchor bridge suspension bridge of the Yangtze Bridge, tower anchor unification suspension bridge has altogether and has saved 1.5 hundred million.While tower
Anchor unification Suspension Bridge Tower axle power reduces 25%, and Sarasota lateral rigidity improves 18%, and the duration reduces 15 months.
Embodiment 2：
The span arrangement of the tower anchor unification suspension bridge of the present embodiment is identical with the Wufeng Mount Yangtze Bridge.As shown in Fig. 2 one
Tower anchor unification suspension bridge is planted, is mainly made up of main push-towing rope 1, hoist cable 2, Sarasota 3, horizon bar 5, girder 6 and batter post 7；Described hoist cable 2
It is evenly arranged between main push-towing rope 1 and girder 6；Described horizon bar 5 intersects vertically with Sarasota 3；The described connection Sarasota of horizon bar 5
3, and be connected with girder 6, while setting up auxiliary pier II 4, auxiliary pier I 15 respectively at the two ends of horizon bar 5；Described batter post 7 is
Two power bars, are located at the inner side of Sarasota 3, and horizon bar 5, Sarasota 3 and batter post 7 have a common intersection point；The described bottom of auxiliary pier II 4
Portion pours the basis 9 of auxiliary pier II；The bottom of described batter post 7 and the bottom of auxiliary pier I 15 are intersecting, and pour mutual foundation
16；The bottom of described Sarasota 3 has poured Sarasota basis 8, and is provided with steering block II 13 in the bottom on Sarasota basis 8；In rope
The top of tower 3 is provided with cable saddle 11；The described end of horizon bar 5 is provided with steering block I 12；The end of described main push-towing rope 1 bypasses successively
The cable saddle 11 at the top of Sarasota 3, the steering block II 13 of 8 bottoms of steering block I 12, Sarasota basis of the end of horizon bar 5, its anchorage point
It is eventually located on the end of horizon bar 5 for setting up auxiliary pier I 15；Described girder 6 is affixed with the connected mode of horizon bar 5 or is hinged
When, the Horizontal Tension of main push-towing rope 1 can by Sarasota basis 8, mutual foundation 16, girder 6 axle power common equilibrium.
The line of eccentricity of the Sarasota of Sarasota 3 be curve, can make dorsal funciculus around Sarasota 3 rotate when, moment of flexure is not produced to Sarasota 3；Sarasota 3
Width be curve, it is ensured that material can be fully used；Horizon bar 5 is down slightly biased to move the middle part of Sarasota 3, with bridge floor with height,
As a part for access bridge, by axle power and shearing power effect, the line of eccentricity of horizon bar 5 is adjusted to oblique axis, made at horizon bar 5
In free from moment.Scattered cable saddle 14 is provided with the anchoring of the end of main push-towing rope 1.β is taken as 45 °, γ is taken as 45 °, θ is taken as 50 °, α takes
It is 60 °, NcIt is taken as 0.8 times of main push-towing rope tension force, N00.3 times of main push-towing rope tension force is taken as, Sarasota, horizon bar use structure lattice column
Form, girder uses steel construction.
According to conventional design, huge anchorage and deep foundation need to be set, be computed, compared with the Yangtze Bridge of Wufeng Mount,
Set up horizon bar, auxiliary pier, eliminate anchorage, tower anchor unification suspension bridge saves 1.2 hundred million, and Sarasota axle power reduces 20.6%, Sarasota
Lateral rigidity improves 25%, and excavation of foundation pit depth reduction 25m, the duration reduces 12 months.
Embodiment 3：
The span arrangement of the tower anchor unification suspension bridge of the present embodiment is identical with the bridge of yangtze river in nanjing four.As shown in figure 3, a kind of
Tower anchor unifies suspension bridge, is mainly made up of main push-towing rope 1, hoist cable 2, Sarasota 3, horizon bar 5 and girder 6；Described hoist cable 2 is evenly arranged
Between main push-towing rope 1 and girder 6；Described horizon bar 5 intersects vertically with Sarasota 3；The described connection of horizon bar 5 Sarasota 3, and with master
Beam 6 is connected, while setting up auxiliary pier II 4, auxiliary pier I 15 respectively at the two ends of horizon bar 5；Described auxiliary pier II 4, auxiliary pier
I 15 bottom pours the basis 9 of auxiliary pier II, the basis 17 of auxiliary pier I respectively；The bottom of described Sarasota 3 has poured Sarasota basis
8, and it is provided with steering block II 13 in the bottom on Sarasota basis 8；Cable saddle 11 is provided with the top of Sarasota 3；The described end of horizon bar 5
Portion is provided with steering block I 12；The end of described main push-towing rope 1 bypasses cable saddle 11, the steering of the end of horizon bar 5 at the top of Sarasota 3 successively
The steering block II 13 of 8 bottoms of block I 12, Sarasota basis, its anchorage point is eventually located at the end of horizon bar 5 for setting up auxiliary pier I 15
On；Described girder 6 and the connected mode of horizon bar 5 are affixed or when being hinged, and the Horizontal Tension of main push-towing rope 1 can be by Sarasota basis 8 and main
The axle power common equilibrium of beam 6.
The line of eccentricity of the Sarasota of Sarasota 3 be curve, can make dorsal funciculus around Sarasota 3 rotate when, moment of flexure is not produced to Sarasota 3；Sarasota 3
Width be curve, it is ensured that material can be fully used；Horizon bar 5 is down slightly biased to move the middle part of Sarasota 3, with bridge floor with height,
As a part for access bridge, by axle power and shearing power effect, the line of eccentricity of horizon bar 5 is adjusted to oblique axis, made at horizon bar 5
In free from moment.Scattered cable saddle 14 is provided with the anchoring of the end of main push-towing rope 1.β is taken as 45 °, γ is taken as 45 °, θ is taken as 50 °, α takes
It is 60 °, N00.5 times of main push-towing rope tension force is taken as, Sarasota, horizon bar use structure lattice cylindricality formula, girder uses steel construction.
According to conventional design, huge anchorage and deep foundation need to be set, be computed, compared with the bridge of yangtze river in nanjing four, save
Anchorage is removed, this expense is to save 3.8 hundred million yuan.Tower anchor unifies suspension bridge due to setting up auxiliary pier, horizon bar, and this expense is 1.6
Hundred million.Therefore, compared with the common earth anchor bridge suspension bridge of the bridge of yangtze river in nanjing four, tower anchor unification suspension bridge has altogether and has saved 2.2 hundred million.Simultaneously
Tower anchor unification Suspension Bridge Tower axle power reduces 18%, and Sarasota lateral rigidity improves 12%, and the duration reduces 9 months.
Embodiment 4：
As shown in figure 4, a kind of tower anchor unification suspension bridge, mainly by 6 groups of main push-towing rope 1, hoist cable 2, Sarasota 3, horizon bar 5 and girder
Into；Described hoist cable 2 is evenly arranged between main push-towing rope 1 and girder 6；Described horizon bar 5 intersects vertically with Sarasota 3；Described
The bottom of Sarasota 3 has poured Sarasota basis 8, and is provided with steering block II 13 in the bottom on Sarasota basis 8；At the top of Sarasota 3
It is provided with cable saddle 11；The described end of horizon bar 5 is provided with steering block I 12；Described horizon bar 5 is located at the outside of Sarasota 3, described
Auxiliary pier II 4 is set up in the end of horizon bar 5, and the bottom of auxiliary pier II 4 pours the basis 9 of auxiliary pier II；Branch is provided with the inner side of Sarasota 3
The auxiliary pier III of girder 6 is supportted, and it is an entirety to be poured the Sarasota 3 and auxiliary pier III below bridge floor with concrete, and rope
Tower foundation 8 is together as Sarasota column foot；The end of described main push-towing rope 1 bypasses cable saddle 11, the end of horizon bar 5 at the top of Sarasota 3 successively
The steering block II 13 of 8 bottoms of steering block I 12, Sarasota basis in portion, its anchorage point is eventually located at Sarasota column foot inner side；Described
Girder 6 and the connected mode of king-tower 3 are affixed or when being hinged, and the Horizontal Tension of main push-towing rope 1 can be total to by the axle power on Sarasota basis 8 and girder 6
Homostasis.
The line of eccentricity of the Sarasota of Sarasota 3 be curve, can make dorsal funciculus around Sarasota 3 rotate when, moment of flexure is not produced to Sarasota 3；Sarasota 3
Width be curve, it is ensured that material can be fully used；Horizon bar 5 is down slightly biased to move the middle part of Sarasota 3, with bridge floor with height,
As a part for access bridge, by axle power and shearing power effect, the line of eccentricity of horizon bar 5 is adjusted to oblique axis, made at horizon bar 5
In free from moment.Scattered cable saddle 14 is provided with the anchoring of the end of main push-towing rope 1.β is taken as 45 °, γ is taken as 45 °, θ is taken as 50 °, α takes
It is 60 °, N00.5 times of main push-towing rope tension force is taken as, Sarasota, horizon bar use concrete box type structure, girder uses steel construction.
The technical parameter contrast table of embodiment 1~3
| Expense saves (hundred million yuan) | Sarasota axle power subtracts (%) | Sarasota lateral rigidity (%) | Duration shortens (moon) | |
| Embodiment 1 | 1.5 | 25 | 18 | 15 |
| Embodiment 2 | 1.2 | 20.6 | 25 | 12 |
| Embodiment 3 | 1.6 | 18 | 12 | 9 |
Claims (9)
1. a kind of tower anchor unifies suspension bridge, it is characterised in that：Mainly by main push-towing rope（1）, hoist cable（2）, Sarasota（3）, horizon bar（5）With
Girder（6）Composition；Described hoist cable（2）It is evenly arranged in main push-towing rope（1）And girder（6）Between；Described horizon bar（5）With Sarasota
（3）Intersect vertically；Described Sarasota（3）Bottom poured Sarasota basis（8）, and on Sarasota basis（8）Bottom be provided with
Steering block II (13)；In Sarasota（3）Top be provided with cable saddle（11）；Described horizon bar（5）End is provided with steering block I（12）；
Described main push-towing rope（1）End bypass Sarasota successively（3）The cable saddle at top（11）, horizon bar（5）The steering block I of end（12）、
Sarasota basis（8）The steering block II (13) of bottom, its anchorage point is eventually located at the Sarasota on suspension bridge both sides（3）Between；
According to the anchorage point of main push-towing rope end, there is following design：
Design one, is additionally provided with batter post（7）；Described batter post（7）Bottom pour inclined column foundation（10）；Described horizon bar（5）、
Batter post（7）It is respectively provided at Sarasota（3）Both sides, batter post（7）It is two power bars, and horizon bar（5）, Sarasota（3）And batter post（7）Have
One common intersection point；Described horizon bar（5）End set up auxiliary pier II（4）, auxiliary pier II（4）Bottom pours auxiliary pier II
Basis（9）；Described main push-towing rope end is finally anchored at inclined column foundation（10）On；Described girder（6）With Sarasota（3）Connected mode
It is affixed or when being hinged, main push-towing rope（1）Horizontal Tension is by Sarasota basis（8）, inclined column foundation（10）And girder（6）Axle power put down jointly
Weighing apparatus；
Design two, is additionally provided with batter post（7）；Described horizon bar（5）Connection Sarasota（3）, and and girder（6）Connection, while in water
Flat bar（5）Two ends set up auxiliary pier II respectively（4）, auxiliary pier I（15）；Described batter post（7）It is two power bars, is located at Sarasota
（3）Inner side, and horizon bar（5）, Sarasota（3）And batter post（7）There is a common intersection point；Described auxiliary pier II（4）Pour bottom
Build the basis of auxiliary pier II（9）；Described batter post（7）Bottom and auxiliary pier I（15）Bottom intersect, and pour mutual foundation
（16）；Final being anchored in described main push-towing rope end sets up auxiliary pier I（15）Horizon bar（5）On end；Described girder（6）With
Horizon bar（5）Connected mode is affixed or when being hinged, main push-towing rope（1）Horizontal Tension can be by Sarasota basis（8）, mutual foundation（16）With
Girder（6）Axle power common equilibrium；
Design three, described horizon bar（5）Connection Sarasota（3）, and and girder（6）Connection, while in horizon bar（5）Two ends point
Auxiliary pier II is not set up（4）, auxiliary pier I（15）；Described auxiliary pier II（4）, auxiliary pier I（15）Bottom pour auxiliary respectively
The basis of pier II（9）, the basis of auxiliary pier I（17）；Final being anchored in described main push-towing rope end sets up auxiliary pier I（15）Horizon bar
（5）On end；Described girder（6）With horizon bar（5）Connected mode is affixed or when being hinged, main push-towing rope（1）Horizontal Tension can be by
Sarasota basis（8）And girder（6）Axle power common equilibrium；
Design four, described horizon bar（5）It is located at Sarasota（3）Outside, described horizon bar（5）End set up auxiliary pier II
（4）, auxiliary pier II（4）Bottom pours the basis of auxiliary pier II（9）；In Sarasota（3）Inner side be provided with support girder（6）Auxiliary pier
III, and with concrete by the Sarasota below bridge floor（3）It is an entirety to be poured with auxiliary pier III, and Sarasota basis（8）Together
As Sarasota column foot；Described main push-towing rope end is finally anchored at Sarasota column foot inner side；Described girder（6）With Sarasota（3）Connection
Mode is affixed or when being hinged, main push-towing rope（1）Horizontal Tension can be by Sarasota basis（8）And girder（6）Axle power common equilibrium.
2. tower anchor according to claim 1 unifies suspension bridge, it is characterised in that：Set at the anchoring of main push-towing rope end and dissipate rope
Saddle（14）.
3. tower anchor according to claim 1 unifies suspension bridge, it is characterised in that：Described Sarasota（3）Line of eccentricity for song
Line, makes dorsal funciculus around Sarasota（3）During rotation, to Sarasota（3）Do not produce moment of flexure；Described Sarasota（3）Width be curve, it is ensured that
Material can be fully used；Sarasota（3）The left and right both ends of the surface and main push-towing rope at top（1）The within angle α and β for being formed respectively, main push-towing rope
（1）Sarasota is freely bypassed with β angles（3）Tower top, reduce dorsal funciculus length.
4. tower anchor according to claim 3 unifies suspension bridge, it is characterised in that：Described horizon bar（5）Setting height(from bottom)
Be h, i.e. horizon bar（5）To Sarasota basis（8）Vertical distance；Described Sarasota（3）Height be H, i.e. Sarasota（3）Tower top is extremely
Sarasota basis（8）Vertical distance；In the case of rod member deadweight is not considered, when, by auxiliary pier II（4）Undertake main push-towing rope
（1）Downward vertical force component, described horizon bar（5）Only receive axial compressive force；When, described horizon bar（5）Only receive axle
To pressure；When, by auxiliary pier II（4）Undertake main push-towing rope（1）Upward vertical force component, described horizon bar（5）Only receive axle
To pressure；Described horizon bar（5）Length is adjusted according to β angles.
5. tower anchor according to claim 3 unifies suspension bridge, it is characterised in that：Described Sarasota（3）Perpendicularly to the axis
Sarasota during face and described（3）The left and right both ends of the surface and main push-towing rope at top（1）It is described during the within angle α and β equal for being formed respectively
Sarasota（3）Axial compression, it is made a concerted effort straight down.
6. tower anchor according to claim 1 unifies suspension bridge, it is characterised in that：Described horizon bar（5）Using steel construction
Lattice column form or steel case or concrete box type are made.
7. tower anchor according to claim 1 unifies suspension bridge, it is characterised in that：Described Sarasota basis（8）Stress is oblique
Downwards, arranged by appropriate structure and use open cut foundation mode, in design one, Sarasota basis can be made（8）And auxiliary
The basis of pier II（9）, inclined column foundation（10）It is a mass-type foundation to pour；In design two, Sarasota basis can be made（8）And auxiliary
The basis of pier II（9）, mutual foundation（16）It is a mass-type foundation to pour；In design three, Sarasota basis can be made（8）And auxiliary
The basis of pier II（9）, the basis of auxiliary pier I（17）It is a mass-type foundation to pour.
8. tower anchor according to claim 1 unifies suspension bridge, it is characterised in that：Described girder（6）Main push-towing rope is shared in participation
（1）During horizontal component, if described girder（6）It is concrete filled steel tube, using described girder（6）Axle power is to girder
（6）Apply prestressing force.
9. tower anchor according to claim 1 unifies suspension bridge, it is characterised in that：Described horizon bar（5 ）It is both as bridge
The part in face, is also anchor beam；When Sarasota is higher, described horizon bar（5）Can be highly inconsistent with bridge floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078907.0U CN206204758U (en) | 2016-09-26 | 2016-09-26 | Tower anchor unifies suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078907.0U CN206204758U (en) | 2016-09-26 | 2016-09-26 | Tower anchor unifies suspension bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206204758U true CN206204758U (en) | 2017-05-31 |
Family
ID=58760818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621078907.0U Withdrawn - After Issue CN206204758U (en) | 2016-09-26 | 2016-09-26 | Tower anchor unifies suspension bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206204758U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284049A (en) * | 2016-09-26 | 2017-01-04 | 广西大学 | Tower anchor unification suspension bridge |
| CN107190627A (en) * | 2017-06-13 | 2017-09-22 | 同济大学 | Part earth anchored suspension bridge and its construction method |
| CN107558353A (en) * | 2017-09-25 | 2018-01-09 | 中铁建港航局集团勘察设计院有限公司 | Drag-line height-limiting frame |
-
2016
- 2016-09-26 CN CN201621078907.0U patent/CN206204758U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284049A (en) * | 2016-09-26 | 2017-01-04 | 广西大学 | Tower anchor unification suspension bridge |
| CN106284049B (en) * | 2016-09-26 | 2018-04-27 | 广西大学 | Tower anchor unifies suspension bridge |
| CN107190627A (en) * | 2017-06-13 | 2017-09-22 | 同济大学 | Part earth anchored suspension bridge and its construction method |
| CN107190627B (en) * | 2017-06-13 | 2022-02-18 | 同济大学 | Partial ground anchor type suspension bridge and construction method thereof |
| CN107558353A (en) * | 2017-09-25 | 2018-01-09 | 中铁建港航局集团勘察设计院有限公司 | Drag-line height-limiting frame |
| CN107558353B (en) * | 2017-09-25 | 2024-03-22 | 中铁建港航局集团勘察设计院有限公司 | Inhaul cable type height limiting frame |
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