CN102277826A - Partial earth anchor intersecting cable-stayed bridge - Google Patents
Partial earth anchor intersecting cable-stayed bridge Download PDFInfo
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- CN102277826A CN102277826A CN2011101264412A CN201110126441A CN102277826A CN 102277826 A CN102277826 A CN 102277826A CN 2011101264412 A CN2011101264412 A CN 2011101264412A CN 201110126441 A CN201110126441 A CN 201110126441A CN 102277826 A CN102277826 A CN 102277826A
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Abstract
The invention discloses a partial earth anchor intersecting cable-stayed bridge, which comprises a first bridge tower (1) and a second bridge tower (10) which are adjacent to each other, a common region main beam (7) and a midspan region main beam (6), wherein the midspan region main beam (6) is connected with the first bridge tower (1) and the second bridge tower (10) respectively through an intersecting outer side cable (2) and an intersecting inner side cable (3); the projections of the intersecting outer side cable (2) and the intersecting inner side cable (3) are intersected on the vertical surface in the longitudinal direction of the bridge and parallel on the vertical surface in the transverse direction of the bridge; the first bridge tower (1) and the second bridge tower (10) are connected with anchors (8) respectively through end anchor cables (5); and the common region main beam (7) is symmetrically connected with the first bridge tower (1) or the second bridge tower (10) through common cables (4). The partial earth anchor intersecting cable-stayed bridge has the advantages of high midspan region main beam rigidity, low common region main beam horizontal force, high spanning capability and the like.
Description
Technical field
The present invention relates to a kind of bridge, relate in particular to a kind of part earth anchor intersection cable stayed-cable bridge.
Background technology
Cable stayed bridge is built in a large number owing to can realize the advantage of large span with less deck-molding.Along with the increase of span, girder cross section compressive stress increases rapidly near the bridge tower, and this is the principal element of restriction cable stayed bridge span ability.The arrangement form of current domestic and international cable-stayed bridge cable is the rope face of single type.To radiation shape and harp shape rope face, drag-line anchor point on bridge tower disperses, and needs higher bridge tower to arrange the anchor-hold point; To radiation shape rope face, be subjected to rise-span ratio and cat head spatial constraints, the drag-line negligible amounts that can arrange is unsuitable for large span stayed-cable bridge.On the other hand, the suspension cable of existing form and bridge tower are arranged a little less than the constraint of span centre girder, the rigidity of span centre beam section is low, be unsuitable for circuit to the rigidity requirement strictness, otherwise, need solve span centre girder rigidity problem in the mode that increases rope face, raising girder height, and these modes will cause engineering quantity to heighten, and make cable stayed bridge lose competitive advantage.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of girder compressive stress is less, span centre rigidity is big, the part earth anchor of good economy performance intersects cable stayed-cable bridge.
For solving the problems of the technologies described above, part earth anchor intersection cable stayed-cable bridge provided by the invention, comprise the first adjacent bridge tower and second bridge tower, common section girder, in span centre section girder, span centre section girder is connected with second bridge tower with described first bridge tower respectively with the intersection medial strand by the intersection lateral funiculus in described, described intersection lateral funiculus with intersect medial strand and intersect to facade projection at vertical bridge, facade projection is non-intersect at direction across bridge, described first bridge tower links to each other with the anchor ingot by the end anchor cable respectively with second bridge tower, and described common section girder is connected with described first bridge tower or second bridge tower symmetry by common rope.
The described intersection lateral funiculus and the medial strand that intersects adopt radiation shape rope face to be anchored at the cat head of described first bridge tower and second bridge tower respectively, the cat head of described first bridge tower and second bridge tower links to each other with the anchor ingot by the end anchor cable respectively, and described common rope adopts fan-shaped rope face or harp shape rope face symmetry to be anchored in the body of the tower of described first bridge tower or second bridge tower.
The beam segment length who is furnished with described intersection lateral funiculus and intersection medial strand accounts for 1/4～1/3 of main span length.Intersect lateral funiculus with to intersect medial strand non-intersect on the cross section for making, and span centre section girder is arranged the required width of a pair of suspension cable in widening.The anchor ingot is double as end bay bridge pier simultaneously.
Adopt the part earth anchor intersection cable stayed-cable bridge of technique scheme, compared with prior art, the invention has the advantages that: the first, can increase cable stayed bridge span ability 1/4～1/3, make cable stayed bridge be more suitable for using on the large span bridge more than 1000 meters.In the prior art, the cable stayed bridge span is big more, and the compressive stress of bridge tower place beam section is big more, and the span ability of cable stayed bridge is limited by girder material compressive strength.And the partly anchor stayed-cable bridge scheme that the gloomy professor of Denmark University of Science and Technology's Jim proposes, though can solve the excessive problem of girder compressive stress, work progress is very complicated.Part earth anchor intersection cable stayed-cable bridge provided by the invention, span centre beam section horizontal force self-balancing does not increase the compressive stress of common beam section, thereby not limited by girder material compressive strength; The second, increase considerably the rigidity of span centre beam section.Compared with prior art, arrange the cable stayed bridge of intersection rope, span centre beam section drag-line doubles, and beam section rigidity is improved significantly, and this will make cable stayed bridge use in the mode of economy on to the circuit of rigidity requirement strictness.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a vertical view of the present invention;
Fig. 3 is an a place partial enlarged drawing among Fig. 2;
Fig. 4 is the sectional drawing at A-A place among Fig. 1;
Fig. 5 is the sectional drawing at B-B place among Fig. 1;
Marginal data:
1, first bridge tower 2, the lateral funiculus that intersects
3, intersection medial strand 4, common rope
5, end anchor cable 6, span centre section girder
7, common section girder 8, anchor ingot
9, auxiliary pier 10, second bridge tower
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, in span centre section girder 6 adopt radiation shape rope faces to be anchored at the cat head of first bridge tower 1 and second bridge tower 10 respectively by intersecting the lateral funiculus 2 and the medial strand 3 that intersects, intersect lateral funiculus 2 with intersect medial strand 3 and intersect to facade projection at vertical bridge, facade projection is non-intersect at direction across bridge, common section girder 7 adopts fan-shaped rope face or harp shape rope face symmetry to be anchored in the body of the tower of first bridge tower 1 or second bridge tower 10 by common rope 4, the cat head of first bridge tower 1 and second bridge tower 10 links to each other with anchor ingot 8 by end anchor cable 5 respectively, and common section girder 7 is provided with auxiliary pier 9.Be furnished with the beam segment length of intersecting lateral funiculus 2 and intersecting medial strand 3 and account for 1/4～1/3 of main span length; Intersect lateral funiculus 2 with to intersect medial strand 3 non-intersect on the cross section for making, the required width of the span centre section girder 6 a pair of suspension cables of layout in widening, as shown in Figure 3.Anchor ingot 8 is double as end bay bridge pier simultaneously.
Part earth anchor intersection cable stayed-cable bridge construction sequence in this specific embodiment is:
Step 1: at first carry out the construction of the pile foundation and first bridge tower 1, second bridge tower 10, auxiliary pier 9, anchor ingot 8;
Step 2: the common section girder 7 of symmetrical construction, set up common rope 4;
Step 3: set up end anchor cable 5;
Step 4: symmetry is set up span centre section girder 6, sets up the intersection lateral funiculus 2 and the medial strand 3 that intersects, and adjusts end anchor cable 5 Suo Li one by one;
Step 5: finish ancillary works and deck paving, reach into the bridge state.
The construction of above-mentioned intersection cable stayed-cable bridge is built, and Duo the step that the anchor ingot is constructed than conventional CONSTRUCTION OF CABLE-STAYED BRIDGE method, and this has been formed into cooking technique when suspension bridge construction, do not increase difficulty of construction.
Claims (3)
1. a part earth anchor intersects cable stayed-cable bridge, comprise adjacent first bridge tower (1) and second bridge tower (10), common section girder (7), in span centre section girder (6), it is characterized in that: span centre section girder (6) is connected with second bridge tower (10) with described first bridge tower (1) respectively with intersection medial strand (3) by intersection lateral funiculus (2) in described, described intersection lateral funiculus (2) with intersect medial strand (3) and intersect to facade projection at vertical bridge, facade projection is non-intersect at direction across bridge, described first bridge tower (1) links to each other with anchor ingot (8) by end anchor cable (5) respectively with second bridge tower (10), and described common section girder (7) is connected with described first bridge tower (1) or second bridge tower (10) symmetry by common rope (4).
2. part earth anchor intersection cable stayed-cable bridge according to claim 1, it is characterized in that: the described intersection lateral funiculus (2) and the medial strand (3) that intersects adopt radiation shape rope face to be anchored at the cat head of described first bridge tower (1) and second bridge tower (10) respectively, the cat head of described first bridge tower (1) and second bridge tower (10) links to each other with described anchor ingot (8) by described end anchor cable (5) respectively, and described common rope (4) adopts fan-shaped rope face or harp shape rope face symmetry to be anchored in the body of the tower of described first bridge tower (1) or second bridge tower (10).
3. part earth anchor intersection cable stayed-cable bridge according to claim 1 and 2 is characterized in that: the beam segment length who is furnished with described intersection lateral funiculus (2) and intersection medial strand (3) accounts for 1/4～1/3 of main span length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101264412A CN102277826A (en) | 2011-05-16 | 2011-05-16 | Partial earth anchor intersecting cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101264412A CN102277826A (en) | 2011-05-16 | 2011-05-16 | Partial earth anchor intersecting cable-stayed bridge |
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| CN102277826A true CN102277826A (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101264412A Pending CN102277826A (en) | 2011-05-16 | 2011-05-16 | Partial earth anchor intersecting cable-stayed bridge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133484A (en) * | 2015-10-19 | 2015-12-09 | 中铁第四勘察设计院集团有限公司 | Cable-stayed bridge structure with high and low towers for partial ground anchors |
| CN105256720A (en) * | 2015-09-17 | 2016-01-20 | 中铁大桥科学研究院有限公司 | Partial ground anchor balancing cable cable-stayed bridge |
| CN106498837A (en) * | 2016-11-02 | 2017-03-15 | 西南交通大学 | A kind of novel bridge and its construction method |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR439096A (en) * | 1912-01-18 | 1912-06-05 | Hugues Henri Georges Etcheverr | Non-deformable suspension bridge system with multiple suspensions |
| GB839413A (en) * | 1957-05-09 | 1960-06-29 | Ake Hedstroem | Improvements in or relating to bridges and other load-carrying structures |
| DE3810071C1 (en) * | 1988-03-25 | 1989-03-16 | Willy Huenibach Ch Habegger | Suspension bridge |
| US5896609A (en) * | 1997-11-21 | 1999-04-27 | Lin; Wei-Hwang | Safety method of construction a prestressed cable-stay bridge |
| CN2900614Y (en) * | 2006-06-26 | 2007-05-16 | 董兰田 | Two-way stayed-cable suspension bridge |
| CN202081371U (en) * | 2011-05-16 | 2011-12-21 | 湖南大学 | Partially ground-anchor cross cable stayed bridge |
-
2011
- 2011-05-16 CN CN2011101264412A patent/CN102277826A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR439096A (en) * | 1912-01-18 | 1912-06-05 | Hugues Henri Georges Etcheverr | Non-deformable suspension bridge system with multiple suspensions |
| GB839413A (en) * | 1957-05-09 | 1960-06-29 | Ake Hedstroem | Improvements in or relating to bridges and other load-carrying structures |
| DE3810071C1 (en) * | 1988-03-25 | 1989-03-16 | Willy Huenibach Ch Habegger | Suspension bridge |
| US5896609A (en) * | 1997-11-21 | 1999-04-27 | Lin; Wei-Hwang | Safety method of construction a prestressed cable-stay bridge |
| CN2900614Y (en) * | 2006-06-26 | 2007-05-16 | 董兰田 | Two-way stayed-cable suspension bridge |
| CN202081371U (en) * | 2011-05-16 | 2011-12-21 | 湖南大学 | Partially ground-anchor cross cable stayed bridge |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256720A (en) * | 2015-09-17 | 2016-01-20 | 中铁大桥科学研究院有限公司 | Partial ground anchor balancing cable cable-stayed bridge |
| CN105133484A (en) * | 2015-10-19 | 2015-12-09 | 中铁第四勘察设计院集团有限公司 | Cable-stayed bridge structure with high and low towers for partial ground anchors |
| CN106498837A (en) * | 2016-11-02 | 2017-03-15 | 西南交通大学 | A kind of novel bridge and its construction method |
| CN106498837B (en) * | 2016-11-02 | 2017-12-05 | 西南交通大学 | A kind of bridge and its construction method |
| 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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Application publication date: 20111214 |