CN105256720A - Partial ground anchor balancing cable cable-stayed bridge - Google Patents
Partial ground anchor balancing cable cable-stayed bridge Download PDFInfo
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- CN105256720A CN105256720A CN201510599095.8A CN201510599095A CN105256720A CN 105256720 A CN105256720 A CN 105256720A CN 201510599095 A CN201510599095 A CN 201510599095A CN 105256720 A CN105256720 A CN 105256720A
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Abstract
The present invention discloses a partial ground anchor balancing cable cable-stayed bridge, and relates to the field of cable-stayed bridges. The partial ground anchor balancing cable cable-stayed bridge comprises a main beam 1, and a first bridge tower 2 and a second bridge tower 3 which are adjacent to each other; the main beam 1 comprises a middle span midspan section main beam 4 positioned between the first bridge tower 2 and the second bridge tower 3; the first bridge tower 2 is provided with at least one first middle span stay cable 5 with one end anchored to the first bridge tower 2; the second bridge tower 3 is provided with at least one second middle span stay cable 6 with one end anchored to the second bridge tower 3; at least one middle span balancing cable 7 is disposed in the middle span midspan section main beam 4; and the middle span midspan section main beam 4 is connected with the first bridge tower 2 and the second bridge tower 3 via the first middle span stay cables 5, the middle span balancing cables 7 and the second middle span stay cables 6. The partial ground anchor balancing cable cable-stayed bridge is small in main beam axial force, simple in construction method, consistent in landscape effect and good in economy.
Description
Technical field
The present invention relates to cable stayed bridge field, be specifically related to a kind of part earth anchor tail rope cable stayed bridge.
Background technology
Cable stayed bridge is primarily of bridge tower, girder, the large parts composition of suspension cable three, and layout of structural system is flexible, adapts to across footpath scope wide, is widely used in modern bridge.Along with the increase of span, the axial compression that cable-stayed bridge main-beam bears increases sharply, and this becomes the topmost factor of restriction cable stayed bridge span ability.
For head it off, Denmark scholar Gimsing etc. proposes partly anchor stayed-cable bridge.But, in traditional partly anchor stayed-cable bridge girder corresponding to anchor cable need bear pulling force, require to install girder from span centre to both sides, difficulty of construction is larger.China utility model CN102277826A discloses a kind of partial earth anchor intersecting cable-stayed bridge, it intersects across part suspension cable at span centre 1/4 ~ 1/3, but adopt and will increase the engineering quantity of suspension cable and earth anchor in this way, and intersection rope net destroys the original landscape effect of cable stayed bridge.Although oblique pull suspention composite bridge is stressed comparatively reasonable in addition, also there is the problem that suspension cable and suspension cable are difficult to coordinate on landscape effect.These problems above-mentioned limit the application of this type of bridge type all to a certain extent.
Summary of the invention
For the defect existed in prior art, the object of the present invention is to provide that a kind of girder axle power is little, construction method is simple, landscape effect is consistent, the part earth anchor tail rope cable stayed bridge of good economy performance.
For reaching above object, the technical scheme that the present invention takes is: a kind of part earth anchor tail rope cable stayed bridge, comprise girder and the first bridge tower be disposed adjacent and the second bridge tower, described girder comprises between described first bridge tower and the second bridge tower across span centre section girder, described first bridge tower be provided with at least one one end anchoring thereon first in across suspension cable, described second bridge tower be provided with at least one one end anchoring thereon second in across suspension cable, it is characterized in that: be provided with at least one across tail rope across in span centre section girder in described, pass through in described first across suspension cable across span centre section girder in described, in be connected with the second bridge tower with described first bridge tower across suspension cable across in tail rope and described second.
On the basis of technique scheme, across turning cable saddle in being respectively equipped with across span centre section girder two ends in described, in described first across suspension cable, in be wholely set across suspension cable across in tail rope and described second, be installed with respectively in described across tail rope two ends across turning cable saddle in described in two.
On the basis of technique scheme, be provided with the first anchor device across span centre section girder one end in described, the other end is provided with the second anchor device; Be anchored on described first bridge tower across suspension cable one end in described first, the other end by described first anchor device be anchored at described in across on span centre section girder; Be anchored on described second bridge tower across suspension cable one end in described second, the other end by described second anchor device be anchored at described in across on span centre section girder; In described across tail rope two ends respectively by described first anchor device and described second anchor device be anchored at described in across on span centre section girder, its anchorage point with in described first across corresponding across the anchorage point of suspension cable across span centre section girder in described in suspension cable and second.
On the basis of technique scheme, described part earth anchor tail rope cable stayed bridge also comprises the first anchorage and the second anchorage that are arranged on girder two ends, described first bridge tower is provided with at least one one end anchoring the first end bay suspension cable thereon, described first end bay suspension cable two ends are anchored on described first bridge tower and the first anchorage respectively, described second bridge tower is provided with at least one one end anchoring Second Edge thereon across suspension cable, and described Second Edge is anchored on described second bridge tower and the second anchorage respectively across suspension cable two ends.
On the basis of technique scheme, described part earth anchor tail rope cable stayed bridge also comprises the first anchorage and the second anchorage that are arranged on girder two ends, described first bridge tower is provided with at least one one end anchoring the first end bay suspension cable thereon, described second bridge tower is provided with at least one one end anchoring Second Edge thereon across suspension cable, described girder also comprises the first end bay section girder and the Second Edge transregional section of girder at its two ends, at least one first end bay tail rope is provided with in described first end bay section girder, described first end bay section girder is connected with the first anchorage with described first bridge tower with the first end bay tail rope by described first end bay suspension cable, at least one Second Edge is provided with across tail rope in described Second Edge transregional section of girder, described Second Edge transregional section of girder is connected with the second anchorage with described second bridge tower across tail rope with Second Edge across suspension cable by described Second Edge.
On the basis of technique scheme, described first end bay section girder is provided with the first end bay and turns cable saddle, and described first end bay suspension cable and the first end bay tail rope are wholely set, and described first end bay turns cable saddle and is pressed on described first end bay tail rope; Described Second Edge transregional section of girder is provided with Second Edge across turning cable saddle, and described Second Edge is wholely set across suspension cable across tail rope and Second Edge, and described Second Edge is pressed on described Second Edge across on tail rope across turning cable saddle.
On the basis of technique scheme, described first end bay section girder is provided with the 3rd anchor device, described first end bay suspension cable one end is anchored on described first bridge tower, the other end is anchored on the first end bay section girder by described 3rd anchor device, described first end bay tail rope one end is anchored on described first anchorage, the other end is anchored on described first end bay section girder by described 3rd anchor device, and its anchorage point is corresponding at the anchorage point of described first end bay section girder with described first end bay suspension cable; Described Second Edge transregional section of girder is provided with the 4th anchor device, described Second Edge is anchored on described second bridge tower across suspension cable one end, the other end is anchored on Second Edge transregional section of girder by described 4th anchor device, described Second Edge is anchored on described second anchorage across tail rope one end, the other end is anchored on described Second Edge transregional section of girder by described 4th anchor device, and its anchorage point is corresponding at the anchorage point of described Second Edge transregional section of girder across suspension cable with described Second Edge.
Compared with prior art, the invention has the advantages that:
(1) part earth anchor tail rope cable stayed bridge of the present invention in across in arranging in span centre section girder across tail rope, or in arrange respectively across span centre section girder and end bay section girder in across tail rope and end bay tail rope after, the overwhelming majority of the horizontal component of corresponding suspension cable is balanced Suo Pingheng, and girder axle power significantly reduces.
(2) part earth anchor tail rope cable stayed bridge of the present invention significantly reduces due to girder axle power, therefore girder section area can significantly reduce, and namely girder material usage significantly reduces, and then reduces king-tower and Foundation Design amount.
(3) part earth anchor tail rope cable stayed bridge of the present invention still can adopt traditional boom segments construction method, and exploitativeness is strong.And its suspension cable does not intersect, the overall configuration of bridge is consistent with traditional cable stayed bridge profile, and landscape effect is good.
Accompanying drawing explanation
Fig. 1 is across front view during tail rope during the present invention is only arranged;
Fig. 2 is across front view when tail rope and end bay tail rope during the present invention is arranged;
Fig. 3 is the partial enlarged drawing of span centre section of the present invention;
Fig. 4 is across the enlarged drawing turning cable saddle connected mode in adopting across tail rope in the present invention;
Fig. 5 is the enlarged drawing adopting anchor device connected mode in the present invention across tail rope;
Fig. 6 is that end bay tail rope of the present invention adopts end bay to turn the enlarged drawing of cable saddle connected mode;
Fig. 7 is the enlarged drawing that end bay tail rope of the present invention adopts anchor device connected mode.
In figure: 1-girder, 2-first bridge tower, 3-second bridge tower, across span centre section girder in 4-, across suspension cable in 5-first, across suspension cable in 6-second, across tail rope in 7-, across turning cable saddle in 8-, 9-first anchor device, 10-second anchor device, 11-first anchorage, 12-second anchorage, 13-first end bay suspension cable, 14-Second Edge is across suspension cable, 15-first end bay section girder, 16-Second Edge transregional section of girder, 17-first end bay tail rope, 18-Second Edge is across tail rope, 19-first end bay turns cable saddle, 20-Second Edge is across turning cable saddle, 21-the 3rd anchor device, 22-the 4th anchor device, the interim end bay tail rope of 23-, 24-auxiliary pier.The common section girder of 25-first, the common section girder of 26-second, the common suspension cable of 27-first, the common suspension cable of 28-second.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of part earth anchor tail rope cable stayed bridge, and part earth anchor refers to end bay suspension cable one end and is anchored on earth anchor, allows earth anchor bear the pulling force of end bay suspension cable, and remaining suspension cable is then be anchored on girder.Part earth anchor tail rope cable stayed bridge in the present invention comprises girder 1, the first bridge tower 2 be disposed adjacent and the second bridge tower 3 and is located at first anchorage 11 and second anchorage 12 at girder 1 two ends.Girder 1 comprises across span centre section girder 4, first common section girder 25 and the second common section girder 26 between the first bridge tower 2 and the second bridge tower 3, in divide across the two ends of span centre section girder 4 and take leave of the first bridge tower 2 and the second bridge tower 3 has certain distance.First bridge tower 2 be provided with at least one one end anchoring thereon first in across suspension cable 5, the second bridge tower 3 be provided with at least one one end anchoring thereon second in across suspension cable 6, in be provided with at least one across tail rope 7 across span centre section girder 4.In first across in suspension cable 5, second across suspension cable 6 and in can rationally determine its quantity according to the length across footpath across tail rope 7 one_to_one corresponding.In across span centre section girder 4 by all first across suspension cable 5, in be connected with the second bridge tower 3 with the first bridge tower 2 across suspension cable 6 across in tail rope 7 and second.
Common slant-pull structure and earth anchor slant-pull structure two large divisions can be divided into according to construction method full-bridge different from loading characteristic.
Common slant-pull structure part is made up of the first common section girder 25, second common suspension cable 27 of common section girder 26, first of bridge tower 2, second bridge tower 3, first and the second common suspension cable 28, construction method and structure stress are all consistent with normal cable-stayed bridge, all centered by the first bridge tower 2, second bridge tower 3, bilateral symmetry free cantilever erection sets up the first common section girder 25, second common section girder 26, first common suspension cable 27 and the second common suspension cable 28.
For earth anchor slant-pull structure, first according to span setting situation, select arrange or do not arrange the first end bay section girder 15 and Second Edge transregional section of girder 16.Thus according to actual conditions, can selecting, whether end bay tail rope is set.Whether there is the first end bay tail rope 17 and Second Edge across tail rope 18 according to final bridge completion state structural system, be divided into two kinds of situations, be described further with two kinds of embodiments below.
Embodiment 1
This embodiment corresponding only in across the situation across tail rope 7 during span centre section girder 4 is provided with.Shown in Figure 1, now interim end bay tail rope 23 can be set between the first anchorage 11 and girder 1 and between the second anchorage 12 and girder 1.Interim end bay tail rope 23 for guarantee free cantilever erection construction period cantilever system two ends longitudinal stress balance, central close up across span centre section girder 4 after, remove interim end bay tail rope 23, longitudinal unbalance power by bear across span centre section girder 4.Now the first bridge tower 2 is provided with at least one one end anchoring the first end bay suspension cable 13 thereon, first end bay suspension cable 13 two ends are anchored on described first bridge tower 2 and the first anchorage 11 respectively, second bridge tower 3 is provided with at least one one end anchoring Second Edge thereon across suspension cable 14, and Second Edge is anchored on the second bridge tower 3 and the second anchorage 12 respectively across suspension cable 14 two ends.In like manner, the first end bay suspension cable 13 and Second Edge also rationally can be determined according to actual conditions across the quantity of suspension cable 14.
For in across tail rope 7, its with in can adopt following two kinds of modes across the connection of span centre section girder 4: (1) is connected across turning cable saddle 8 in utilizing; (2) the first anchor device 9 is utilized to be connected with the second anchor device 10.
Across turning the connected mode of cable saddle 8 see shown in Fig. 3 and Fig. 4 in employing.In across turn cable saddle 8 be arranged in across the two ends of span centre section girder 4, and its be installed with respectively in across tail rope (7) two ends.Now in first across suspension cable 5, in across textural integrally formed continuously across suspension cable 6 in tail rope 7 and second, its one end is anchored in the first bridge tower 2, through in across turning cable saddle 8 and across span centre section girder 4 in passing through, the other end is anchored on the second bridge tower 3.Adopt this connected mode, significantly can reduce the withdrawal force that guy anchor solid bears, significantly reduce superelevation and hale the anchoring difficulty of rope on girder.
The first anchor device 9 is adopted to be connected see shown in Fig. 3 and Fig. 5 with the second anchor device 10.Across the two ends of span centre section girder 4 during first anchor device 9 and the second anchor device 10 are separately positioned on.Now be anchored on the first bridge tower 2 across suspension cable 5 one end in each first, the other end by the first anchor device 9 be anchored at described in across on span centre section girder 4; Be anchored on the second bridge tower 3 across suspension cable 6 one end in each second, the other end by the second anchor device 10 be anchored at described in across on span centre section girder 4.Across on span centre section girder 4 in being anchored at respectively by the first anchor device 9 and the second anchor device 10 across tail rope 7 two ends in each, its anchorage point with in first across in suspension cable 5 and second across suspension cable 6 in anchorage point across span centre section girder 4 corresponding.Adopt this connected mode, then can adjust the Suo Li of tail rope as required, with the longitudinal stress balance of the adjustment and free cantilever erection construction period cantilever system two ends that meet girder integral shaft power.
Part earth anchor tail rope CONSTRUCTION OF CABLE-STAYED BRIDGE step in the present embodiment is:
Step 1: the construction carrying out basis and the first bridge tower 2, second bridge tower 3, auxiliary pier 24, first anchorage 11 and the second anchorage 12;
Step 2: symmetrical cantilever construction first common section girder 25 and the second common section girder 26, erection the first common suspension cable 27 and the second common suspension cable 28;
Step 3: end bay closes up;
Step 4: respectively in one-sided cantilever symmetrical construction across span centre section girder 4, in erection first across in suspension cable 5, second across suspension cable 6, in across tail rope 7, first end bay suspension cable 13, Second Edge across suspension cable 14 and interim end bay tail rope 23;
Step 5: in close up across span centre section girder 4, remove interim end bay tail rope 23;
Step 6: complete ancillary works and deck paving, reach bridge completion state.
Embodiment 2
This embodiment corresponding in be provided with first end bay tail rope 17, Second Edge transregional section girder 16 Second Edge across tail rope 18 situation across tail rope 7 at the first end bay section girder 15 across during span centre section girder 4 is provided with.Shown in Figure 2, first bridge tower 2 is provided with at least one one end anchoring the first end bay suspension cable 13 thereon, be provided with at least one first end bay tail rope 17, first end bay section girder 15 in first end bay section girder 15 to be connected with the first anchorage 11 with described first bridge tower 2 with the first end bay tail rope 17 by the first end bay suspension cable 13.Second bridge tower 3 is provided with at least one one end anchoring Second Edge thereon across suspension cable 14, be provided with at least one Second Edge across tail rope 18 in Second Edge transregional section of girder 16, Second Edge transregional section of girder 16 is connected with the second anchorage 12 with the second bridge tower 3 across tail rope 18 with Second Edge across suspension cable 14 by Second Edge.
Following two kinds of modes can be adopted across the connection of tail rope 18 and Second Edge transregional section of girder 16: (1) utilizes the first end bay to turn cable saddle 19 to be connected across turning cable saddle 20 with Second Edge for the first end bay tail rope 17 and the first end bay section girder 15 and Second Edge; (2) the 3rd anchor device 21 is utilized to be connected with the 4th anchor device 22.
The first end bay is adopted to turn cable saddle 19 and Second Edge shown in Figure 6 across turning the mode that cable saddle 20 is connected.Now the first end bay section girder 15 is provided with the first end bay and turns cable saddle 19, first end bay turn cable saddle 19 to be pressed on the first end bay tail rope 17 and the first end bay suspension cable 13 and the first end bay tail rope 17 textural one-body molded continuously, its two ends are anchored on described first bridge tower 2 and the first anchorage 11 respectively; Second Edge transregional section of girder 16 is provided with Second Edge across turning cable saddle 20, Second Edge across turn cable saddle 20 be pressed on Second Edge across on tail rope 18 and Second Edge across suspension cable 14 and Second Edge textural one-body molded continuously across tail rope 18, its two ends are anchored on described second bridge tower 3 and the second anchorage 12 respectively.
The mode adopting the 3rd anchor device 21 to be connected with the 4th anchor device 22 is shown in Figure 7.3rd anchor device 21 is arranged on the first end bay section girder 15, first end bay suspension cable 13 one end is anchored on the first bridge tower 2, the other end is anchored on the first end bay section girder 15 by the 3rd anchor device 21, first end bay tail rope 17 one end is anchored on the first anchorage 11 simultaneously, the other end is anchored on the first end bay section girder 15 by the 3rd anchor device 21, and its anchorage point is corresponding at the anchorage point of the first end bay section girder 15 with the first end bay suspension cable 13.4th anchor device 22 is arranged on Second Edge transregional section of girder 16, Second Edge is anchored on the second bridge tower 3 across suspension cable 14 one end, the other end is anchored on Second Edge transregional section of girder 16 by the 4th anchor device 22, Second Edge is anchored on the second anchorage 12 across tail rope 18 one end simultaneously, the other end is anchored on Second Edge transregional section of girder 16 by the 4th anchor device 22, and its anchorage point is corresponding at the anchorage point of Second Edge transregional section of girder 16 across suspension cable 14 with Second Edge.
In such cases across tail rope 7 with in identical across the mode in span centre section girder 4 connected mode and embodiment 1.
Part earth anchor tail rope CONSTRUCTION OF CABLE-STAYED BRIDGE step in the present embodiment is:
Step 1: the construction carrying out basis and the first bridge tower 2, second bridge tower 3, auxiliary pier 24, first anchorage 11 and the second anchorage 12;
Step 2: symmetrical cantilever construction first common section girder 25 and the second common section girder 26, erection the first common suspension cable 27 and the second common suspension cable 28;
Step 3: across span centre section girder 4, first end bay section girder 15 and Second Edge transregional section of girder 16 in symmetrical construction.In erection first across in suspension cable 5, second across suspension cable 6, in across tail rope 7, first end bay suspension cable 13, Second Edge across suspension cable 14, first end bay tail rope 17 and Second Edge across tail rope 18;
Step 4: in close up across span centre section girder 4;
Step 5: complete ancillary works and deck paving, reach bridge completion state.
The construction of part earth anchor tail rope cable stayed bridge in an embodiment, across the installation across tail rope 18 of tail rope 7, first end bay tail rope 17 and Second Edge in more than conventional construction method of cable-stayed bridge, this is comparatively common in the interim tie-rod construction of bowstring arch bridge, and be formed into cooking technique, do not increase difficulty of construction.
Part earth anchor tail rope cable stayed bridge of the present invention in across in arranging in span centre section girder across tail rope, or in arrange respectively across span centre section girder and end bay section girder in across tail rope and end bay tail rope after, the overwhelming majority of the horizontal component of corresponding suspension cable is balanced Suo Pingheng, girder axle power significantly reduces, therefore girder section area can significantly reduce, namely girder material usage significantly reduces, and then reduces king-tower and Foundation Design amount.Still can adopt traditional boom segments construction method during construction, exploitativeness is strong, and its suspension cable does not intersect, and the overall configuration of bridge is consistent with traditional cable stayed bridge profile, and landscape effect is good.
The present invention is not limited to above-mentioned embodiment, and for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as within protection scope of the present invention.The content be not described in detail in this manual belongs to the known prior art of professional and technical personnel in the field.
Claims (7)
1. a part earth anchor tail rope cable stayed bridge, comprise girder (1) and the first bridge tower (2) be disposed adjacent and the second bridge tower (3), described girder (1) comprise be arranged between described first bridge tower (2) and the second bridge tower (3) across span centre section girder (4), described first bridge tower (2) be provided with at least one one end anchoring thereon first in across suspension cable (5), described second bridge tower (3) be provided with at least one one end anchoring thereon second in across suspension cable (6), it is characterized in that: across being provided with in span centre section girder (4) at least one across tail rope (7) in described, in described across span centre section girder (4) by described first across suspension cable (5), in be connected with the second bridge tower (3) with described first bridge tower (2) across suspension cable (6) across in tail rope (7) and described second.
2. part earth anchor tail rope cable stayed bridge as claimed in claim 1, it is characterized in that: across turning cable saddle (8) in being respectively equipped with across span centre section girder (4) two ends in described, in described first across suspension cable (5), in be wholely set across suspension cable (6) across in tail rope (7) and described second, be installed with respectively in described across tail rope (7) two ends across turning cable saddle (8) in described in two.
3. part earth anchor tail rope cable stayed bridge as claimed in claim 1, it is characterized in that: be provided with the first anchor device (9) across span centre section girder (4) one end in described, the other end is provided with the second anchor device (10); Be anchored on described first bridge tower (2) across suspension cable (5) one end in described first, the other end by described first anchor device (9) be anchored at described in across on span centre section girder (4); Be anchored on described second bridge tower (3) across suspension cable (6) one end in described second, the other end by described second anchor device (10) be anchored at described in across on span centre section girder (4); In described across tail rope (7) two ends respectively by described first anchor device (9) and described second anchor device (10) be anchored at described in across on span centre section girder (4), its anchorage point with in described first across corresponding across the anchorage point of suspension cable (6) across span centre section girder (4) in described in suspension cable (5) and second.
4. part earth anchor tail rope cable stayed bridge as claimed in claim 1, it is characterized in that: described part earth anchor tail rope cable stayed bridge also comprises the first anchorage (11) and the second anchorage (12) that are arranged on girder (1) two ends, described first bridge tower (2) is provided with at least one one end anchoring the first end bay suspension cable (13) thereon, described first end bay suspension cable (13) two ends are anchored on described first bridge tower (2) and the first anchorage (11) respectively, described second bridge tower (3) is provided with at least one one end anchoring Second Edge thereon across suspension cable (14), described Second Edge is anchored on described second bridge tower (3) and the second anchorage (12) respectively across suspension cable (14) two ends.
5. part earth anchor tail rope cable stayed bridge as claimed in claim 1, it is characterized in that: described part earth anchor tail rope cable stayed bridge also comprises the first anchorage (11) and the second anchorage (12) that are arranged on girder (1) two ends, described first bridge tower (2) is provided with at least one one end anchoring the first end bay suspension cable (13) thereon, described second bridge tower (3) is provided with at least one one end anchoring Second Edge thereon across suspension cable (14), described girder (1) also comprises the first end bay section girder (15) and the Second Edge transregional section of girder (16) at its two ends, at least one first end bay tail rope (17) is provided with in described first end bay section girder (15), described first end bay section girder (15) is connected with the first anchorage (11) with described first bridge tower (2) with the first end bay tail rope (17) by described first end bay suspension cable (13), at least one Second Edge is provided with across tail rope (18) in described Second Edge transregional section of girder (16), described Second Edge transregional section of girder (16) is connected with the second anchorage (12) with described second bridge tower (3) across tail rope (18) with Second Edge across suspension cable (14) by described Second Edge.
6. part earth anchor tail rope cable stayed bridge as claimed in claim 5, it is characterized in that: described first end bay section girder (15) is provided with the first end bay and turns cable saddle (19), described first end bay suspension cable (13) and the first end bay tail rope (17) are wholely set, and described first end bay turns cable saddle (19) and is pressed on described first end bay tail rope (17); Described Second Edge transregional section of girder (16) is provided with Second Edge across turning cable saddle (20), described Second Edge is wholely set across suspension cable (14) across tail rope (18) and Second Edge, and described Second Edge is pressed on described Second Edge across on tail rope (18) across turning cable saddle (20).
7. part earth anchor tail rope cable stayed bridge as claimed in claim 5, it is characterized in that: described first end bay section girder (15) is provided with the 3rd anchor device (21), described first end bay suspension cable (13) one end is anchored on described first bridge tower (2), the other end is anchored on the first end bay section girder (15) by described 3rd anchor device (21), described first end bay tail rope (17) one end is anchored on described first anchorage (11), the other end is anchored on described first end bay section girder (15) by described 3rd anchor device (21), its anchorage point is corresponding at the anchorage point of described first end bay section girder (15) with described first end bay suspension cable (13), described Second Edge transregional section of girder (16) is provided with the 4th anchor device (22), described Second Edge is anchored on described second bridge tower (3) across suspension cable (14) one end, the other end is anchored on Second Edge transregional section of girder (16) by described 4th anchor device (22), described Second Edge is anchored on described second anchorage (12) across tail rope (18) one end, the other end is anchored on described Second Edge transregional section of girder (16) by described 4th anchor device (22), its anchorage point is corresponding at the anchorage point of described Second Edge transregional section of girder (16) across suspension cable (14) with described Second Edge.
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| CN201510599095.8A CN105256720A (en) | 2015-09-17 | 2015-09-17 | Partial ground anchor balancing cable cable-stayed bridge |
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| CN201510599095.8A CN105256720A (en) | 2015-09-17 | 2015-09-17 | Partial ground anchor balancing cable cable-stayed bridge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101434A (en) * | 2019-12-31 | 2020-05-05 | 中铁二院工程集团有限责任公司 | Cable-stayed bridge with tensioned midspan girder |
| CN111638026A (en) * | 2020-05-26 | 2020-09-08 | 中铁大桥科学研究院有限公司 | System and method for accurately adjusting reference cable of large-span suspension bridge |
| CN112482192A (en) * | 2020-11-06 | 2021-03-12 | 上海市政工程设计研究总院（集团）有限公司 | Midspan tensioned self-anchored cable-stayed bridge and construction method thereof |
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| FR2830549A1 (en) * | 2001-10-04 | 2003-04-11 | Andre Marc Reimbert | Reinforcement of guyed bridge comprises crosspiece on roadway provided with ballasts at each end supported by guys separate from roadway support guys |
| CN1912297A (en) * | 2006-08-29 | 2007-02-14 | 徐国彬 | Self-balance enclosed rope base structure |
| WO2012030018A1 (en) * | 2010-09-02 | 2012-03-08 | 지에스건설 주식회사 | Partially/completely earth-anchored and cable-stayed bridge using a main span tension means, and method for constructing same |
| CN102277826A (en) * | 2011-05-16 | 2011-12-14 | 湖南大学 | Partial earth anchor intersecting cable-stayed bridge |
| CN202369913U (en) * | 2011-12-21 | 2012-08-08 | 中交第一公路勘察设计研究院有限公司 | Reconstruction structure for overline slant-legged rigid frame bridge in road widening project |
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| CN111101434A (en) * | 2019-12-31 | 2020-05-05 | 中铁二院工程集团有限责任公司 | Cable-stayed bridge with tensioned midspan girder |
| CN111101434B (en) * | 2019-12-31 | 2022-01-04 | 中铁二院工程集团有限责任公司 | Cable-stayed bridge with tensioned midspan girder |
| CN111638026A (en) * | 2020-05-26 | 2020-09-08 | 中铁大桥科学研究院有限公司 | System and method for accurately adjusting reference cable of large-span suspension bridge |
| CN111638026B (en) * | 2020-05-26 | 2022-02-01 | 中铁大桥科学研究院有限公司 | System and method for accurately adjusting reference cable of large-span suspension bridge |
| CN112482192A (en) * | 2020-11-06 | 2021-03-12 | 上海市政工程设计研究总院（集团）有限公司 | Midspan tensioned self-anchored cable-stayed bridge and construction method thereof |
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