CN102359059B - Large-span double-arch axis combined arch bridge and construction method thereof - Google Patents
Large-span double-arch axis combined arch bridge and construction method thereof Download PDFInfo
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- CN102359059B CN102359059B CN201110297950.1A CN201110297950A CN102359059B CN 102359059 B CN102359059 B CN 102359059B CN 201110297950 A CN201110297950 A CN 201110297950A CN 102359059 B CN102359059 B CN 102359059B
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000009432 framing Methods 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
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Abstract
The invention discloses a large-span double-arch axis combined arch bridge, which comprises a main beam, a middle bridge pier serving as a middle fulcrum, two auxiliary bridge piers serving as two end fulcrums, an arch axis assembly and two upwards protruded arc arch axis bent beams, wherein the arch axis assembly is arranged on the middle bridge pier, two ends of the arch axis assembly are respectively butted with the inside ends of the two arch axis bent beams, the outside ends of the two arch axis bent beams are respectively arranged on the two auxiliary bridge piers, and the two arch axis bent beams are connected with the main beam through a plurality of stay ropes. The invention also discloses a construction method of the arch bridge. By adopting the double-arch axis method, the bending strength of the section of the arch bridge is greatly increased, the bending moment of the arch section at the middle fulcrum is reduced, the vertical displacement of the arch waist is low, and the deformation of the main beam is reduced, so that the whole bridge is stressed reasonably. By using the method, the construction cost can be effectively reduced, and the construction period is shortened.
Description
Technical field
The present invention relates to the bridge technology field, be specifically related to a kind of combination arch bridge that has than large span, and the construction method of this kind combination arch bridge.
Background technology
Arch bridge design is applied in the middle of the existing bridge construction by more, and it is big, handsome in appearance that it has span, can make full use of advantages such as material crushing resistance.But existing long-span arch bridge all exists horizontal thrust big, and laterally stable controllability difficulty is bigger, the defective that difficulty of construction is higher.
The line of apsides axle that adopts in the U.S. Pat 7469438 can effectively address the aforementioned drawbacks, and reduces the horizontal thrust of arch bridge, and lateral stability is better, but it still has the following disadvantages:
1, because the arch axis line is adjusted, and the main arch cross section moment of flexure at central bearing point place is bigger, the material cost in main arch cross section is bigger;
2, because the arch axis line departs from the pressure line of arch, produce big moment of flexure, the vertical displacement of haunch scope is big, causes main beam deformation very big, is difficult to satisfy the normal functional requirement of using.
Summary of the invention
At the deficiencies in the prior art, one of purpose of the present invention is to provide a kind of large span two arch axis line combination arch bridges, and it can effectively reduce the moment of flexure in main arch cross section by adopting two arch axis line methods, reduces the deformation of girder simultaneously.
Two of purpose of the present invention is to provide a kind of construction method of above-mentioned big width combination arch bridge.
For achieving the above object one, the present invention adopts following technical scheme:
The two arch axis line combination arch bridges of large span, comprise girder, middle bridge pier, two auxilliary bridge piers as the two ends fulcrum as intermediate support, this combination arch bridge also comprises the arch axis combination, and two arch axis camber beams that are to the arc of upper process, the arch axis aggregate erection is on middle bridge pier, its two ends are connected with the butt joint of the medial extremity of two arch axis camber beams respectively, and the outboard end of two arch axis camber beams then is installed in two respectively and assists on the bridge piers, are connected by many drag-lines between two arch axis camber beams and the girder.
The arch axis combination comprises arch axis and last arch axis down, following arch axis is V-shaped, and the bottom and the middle bridge pier of its " V " shape are fixed, and last arch axis is reclinate arc, last arch axis is positioned at the opening part of following arch axis " V " shape, and the two ends of last arch axis are connected to down the two ends of arch axis.
The two ends of last arch axis are tangent with the two ends of following arch axis respectively, and upward arch axis docks and form smoothed curve with two arch axis camber beams.
Arch axis camber beam outboard end is configured as two camber beam legs that are connected with auxilliary bridge pier.
The arch axis camber beam docks formation successively by a plurality of camber beam sections.
For achieving the above object two, the present invention adopts following technical scheme:
The construction method of the two arch axis line combination arch bridges of above-mentioned large span comprises the steps:
A, construction bridge pier, bridge pier comprises the bridge pier in the middle of being arranged in, and the auxilliary bridge pier that lays respectively at two ends;
B, on middle bridge pier segmentation build arch axis combination, the pipe locate mode connects temporarily in adopting between each sections of arch axis combination;
C, build the arch axis camber beam that is to the arc of upper process, comprise following two steps of order in no particular order:
C1, in the end of the arch axis put up combination, dock the sections of arch axis camber beam from inside to outside successively;
C2, ecto-entad docks the sections of arch axis camber beam successively on auxilliary bridge pier;
D, the two ends of the closure segment of arch axis camber beam are docked with the node section of the arch axis camber beam put up among above-mentioned steps C1, the C2 respectively, realize closing up of arch axis camber beam, and the sections of each adjacent arch axis camber beam is implemented welding;
E, inwardly build the girder sections successively, build the girder sections by middle bridge pier successively to its both sides simultaneously, when inwardly building the girder sections successively, utilize drag-line that each girder sections of putting up is connected with the arch axis camber beam by two auxilliary bridge piers by two auxilliary bridge piers;
F, girder close up, and adjacent girder sections is implemented welding.
In above-mentioned steps A, also need building good middle bridge pier and assisting on the bridge pier and build tower crane, above-mentioned steps C then is specially:
Among the step C1, the sections of bridge pier tower crane lifting arch axis camber beam in the utilization, the sections of a plurality of arch axis camber beams docks installation by the outboard end of arch axis combination one by one as initiating terminal, behind the sections of what a arch axis camber beam of every dress, utilize cable wire the sections of this arch axis camber beam to be connected on the tower crane of middle bridge pier temporarily;
Among the step C2, on auxilliary bridge pier, the outer end leg of arch axis camber beam is begun the sections that the arch axis camber beam is built in one by one inside butt joint as initiating terminal, the sections of each arch axis camber beam all is connected on the tower crane of auxilliary bridge pier by a cable wire temporarily, in this process, the sections of arch axis camber beam is by the tower crane lifting on the auxilliary bridge pier.
Among the described step D, utilize cargo ship that the closure segment of arch axis camber beam is transported to the closed position below of arch axis camber beam, utilize the closure segment of suspender lifting arch axis camber beam again.
Of the present invention producing effect is:
The present invention has significantly increased the cross section flexural strength of bridge arch by adopting two arch axis line methods, has reduced the moment of flexure in arch cross section, central bearing point place, and the haunch vertical displacement is less, has reduced the deformation quantity of girder, thereby makes whole bridge force-bearing comparatively reasonable.Simultaneously, utilize method of the present invention, can effectively reduce construction cost, shorten the construction period.
Description of drawings
Fig. 1 is the structural representation of the two arch axis line combination arch bridges of a kind of large span of the present invention;
Fig. 2 is the structural representation of arch axis combination among Fig. 1;
Fig. 3 is the zoomed-in view at A place among Fig. 1;
Fig. 4 is the structural representation of the two arch axis line combination arch bridges of the another kind of large span of the present invention;
Fig. 5 is the schematic diagram of construction method of the present invention, the construction of signal bridge pier and tower crane;
Fig. 6 is the schematic diagram of construction method of the present invention, and what the signal arch axis made up builds;
Fig. 7 is the schematic diagram of construction method of the present invention, the building of signal arch axis camber beam;
Fig. 8 is the schematic diagram of construction method of the present invention, the building of signal girder.
The specific embodiment
Below, in conjunction with the accompanying drawings and the specific embodiment, the present invention is described further:
As shown in Figure 1, be the two arch axis line combination arch bridges of a kind of large span of the present invention, it comprises girder 2, middle bridge pier 11 and two auxilliary bridge piers 12,13, middle bridge pier 11 is as the intermediate support of whole combination arch bridge, two auxilliary bridge piers 12 are as the two ends fulcrum, be installed with arch axis combination 3 on the middle bridge pier 11, between middle bridge pier 11 and two auxilliary bridge piers 12, be connected with an arch axis camber beam 4,5 respectively, arch axis camber beam 4,5 is symmetrical arranged, its the two all be arc to upper process, and dock successively by a plurality of arch axis camber beam sections and to form.
In conjunction with Fig. 2,3, arch axis combination 3 comprises arch axis 31 and last arch axis 32 down, following arch axis 31 is V-shaped, its bottom is fixed on the middle bridge pier 11, the opening of " V " shape up, last arch axis 32 is down arcs of recesses, and it is positioned at arch axis 31 " V " shape opening down, two ends respectively with tangent connection of two ends of following arch axis 31 " V " opening.The medial extremity of arch axis camber beam 5 docks with the respective end of arch axis combination 3, and the outboard end bifurcated of arch axis camber beam 5 forms two camber beam legs 51,52, and this two camber beams leg 51,52 is connected on the auxilliary bridge pier 12, in order to add stiff stability.Above-mentioned arch axis camber beam 4 is identical with the structure of arch axis camber beam 5, its with the connected mode of auxilliary bridge pier 13 also in above-mentioned identical, do not do repeat specification here.
The above-mentioned arch axis camber beam 4,5 and the joint of last arch axis 32 seamlessly transit, and form smoothed curve.Arch axis camber beam 4,5 is connected with girder 2 by a plurality of drag-lines respectively.Above-mentioned arch axis camber beam 4,5 docks formation successively by a plurality of sections.
Except bridge pier in above-mentioned is positioned at the structure in centre position, combination arch bridge of the present invention can also be as shown in Figure 4, and middle bridge pier is not in the position of middle, and the span of corresponding two arch axis camber beams is also just different.
The combinations thereof arch bridge can adopt following method to build:
A, as shown in Figure 5, bridge pier 11 and two auxilliary bridge piers 12,13 in the construction, according to the actual requirements, bridge pier and guarantees its three's conllinear in making between two auxilliary bridge piers, and, build tower crane 61,62,63 respectively at middle bridge pier and two auxilliary bridge piers;
B, as shown in Figure 6, on middle bridge pier 11, build full framing 111, this full framing 11 adapts to the shape of arch axis combination 3, utilizes full framing 111 each sections of building arch axis combination 3 successively one by one then, and the mode of pipe location connected temporarily in the adjacent two segment of arch axis combination 3 adopted;
C, build the arch axis camber beam 4,5 that is to the arc of upper process, this step is divided into following two can carry out simultaneously, also can be in no particular order two step by step in sequence:
Among the step C1, as shown in Figure 7, the sections 43,53 of the tower crane 61 lifting arch axis camber beams 4,5 in the utilization on the bridge pier 11, the sections 43,53 of a plurality of arch axis camber beams 4,5 docks installation by the outboard end of arch axis combination 3 one by one as initiating terminal, behind the sections 43,53 of what a arch axis camber beam of every dress 4,5, utilize cable wire 71 sections 43,53 of this arch axis camber beam 4,5 to be connected on the tower crane 61 of middle bridge pier 11 temporarily;
Among the step C2, as shown in Figure 7, on auxilliary bridge pier 12,13, the outer end leg of arch axis camber beam 4,5 is begun the sections 43,53 that arch axis camber beam 4,5 is built in one by one inside butt joint as initiating terminal, the sections 43,53 of each arch axis camber beam all is connected on the tower crane 62,63 of auxilliary bridge pier 12,13 by a cable wire 72 temporarily, in this process, the sections 43,53 of arch axis camber beam 4,5 is by 62,63 liftings of the tower crane on the auxilliary bridge pier 12,13.
D, more as shown in Figure 7, utilize cargo ship 81 that the closure segment 44,54 of arch axis camber beam 4,5 is transported under the node section of the arch axis camber beam of putting up among step C1, the C2 4,5, utilize the suspender of building in advance at arch axis camber beam 4,5 node places 82 that closure segment 44,54 is winched to again and be fit to height, the two good end nodes that closure segment 44,54 and arch axis camber beam 4,5 are built in advance dock and close up then, at last, welding is implemented in the butt end of the adjacent segment of arch axis camber beam 4,5, thus, finish building of arch axis camber beam 4,5;
E, as shown in Figure 8, by two auxilliary bridge piers 12,13 inwardly build the sections 21 of girder 2 successively, build the sections 21 of girder 2 simultaneously successively to its both sides by middle bridge pier 11, assisting bridge piers 12 by two, 13 when inwardly building the sections 21 of girder 2 successively, utilize the sections 21 and arch axis camber beam 4 of drag-line 6 with each girder of putting up 2,5 connect, bridge pier 11 or auxilliary bridge pier 12 in sections 21 distances of girder 2, when 13 distances are far away, can utilize earlier cargo ship 81 with this sections 21 be transported to pre-installed position under, utilize again and hang in advance at arch axis camber beam 4, rope on 5 lifts by crane this sections 21, implements butt joint behind predetermined altitude;
F, girder close up, and adjacent girder sections is implemented welding.
For a person skilled in the art, can make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection domain of claim of the present invention all according to technical scheme described above and design.
Claims (3)
1. the construction method of the two arch axis line combination arch bridges of large span is characterized in that, comprises the steps:
A, construction bridge pier, bridge pier comprises the bridge pier in the middle of being arranged in, and the auxilliary bridge pier that lays respectively at two ends;
B, segmentation builds arch axis combination on middle bridge pier, on middle bridge pier, build full framing, this full framing adapts to the shape of arch axis combination, utilizes full framing each sections of building the arch axis combination successively one by one then, and the pipe locate mode connects temporarily in adopting between each sections of arch axis combination;
C, build the arch axis camber beam that is to the arc of upper process, comprise following two steps of order in no particular order:
C1, in the end of the arch axis put up combination, dock the sections of arch axis camber beam from inside to outside successively;
C2, ecto-entad docks the sections of arch axis camber beam successively on auxilliary bridge pier;
D, the two ends of the closure segment of arch axis camber beam are docked with the node section of the arch axis camber beam put up among above-mentioned steps C1, the C2 respectively, realize closing up of arch axis camber beam, and the sections of each adjacent arch axis camber beam is implemented welding;
E, inwardly build the girder sections successively, build the girder sections by middle bridge pier successively to its both sides simultaneously, when inwardly building the girder sections successively, utilize drag-line that each girder sections of putting up is connected with the arch axis camber beam by two auxilliary bridge piers by two auxilliary bridge piers;
F, girder close up, and adjacent girder sections is implemented welding;
The two arch axis line combination arch bridges of described large span, comprise girder, middle bridge pier, two auxilliary bridge piers as the two ends fulcrum as intermediate support, this combination arch bridge also comprises the arch axis combination, and two arch axis camber beams that are to the arc of upper process, the arch axis aggregate erection is on middle bridge pier, its two ends are connected with the butt joint of the medial extremity of two arch axis camber beams respectively, and the outboard end of two arch axis camber beams then is installed in two respectively and assists on the bridge piers, are connected by many drag-lines between two arch axis camber beams and the girder.
2. construction method as claimed in claim 1 is characterized in that, in above-mentioned steps A, also needs building good middle bridge pier and assisting on the bridge pier and build tower crane, and above-mentioned steps C then is specially:
Among the step C1, the sections of bridge pier tower crane lifting arch axis camber beam in the utilization, the sections of a plurality of arch axis camber beams docks installation by the outboard end of arch axis combination one by one as initiating terminal, behind the sections of what a arch axis camber beam of every dress, utilize cable wire the sections of this arch axis camber beam to be connected on the tower crane of middle bridge pier temporarily;
Among the step C2, on auxilliary bridge pier, the outer end leg of arch axis camber beam is begun the sections that the arch axis camber beam is built in one by one inside butt joint as initiating terminal, the sections of each arch axis camber beam all is connected on the tower crane of auxilliary bridge pier by a cable wire temporarily, in this process, the sections of arch axis camber beam is by the tower crane lifting on the auxilliary bridge pier.
3. construction method as claimed in claim 1 is characterized in that, among the described step D, utilizes cargo ship that the closure segment of arch axis camber beam is transported to the closed position below of arch axis camber beam, utilizes the closure segment of suspender lifting arch axis camber beam again.
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| CN201110297950.1A CN102359059B (en) | 2011-09-30 | 2011-09-30 | Large-span double-arch axis combined arch bridge and construction method thereof |
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| CN201110297950.1A CN102359059B (en) | 2011-09-30 | 2011-09-30 | Large-span double-arch axis combined arch bridge and construction method thereof |
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| CN102359059B true CN102359059B (en) | 2013-07-31 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2508773B (en) * | 2011-09-30 | 2014-10-29 | Shenzhen Bridge Design & Res Inst Co Ltd | Large-span and special-shaped arch bridge and method for the construction thereof |
| CN103290784B (en) * | 2013-07-02 | 2015-09-16 | 永升建设集团有限公司 | Arched girder conjugative bridge construction method for hanging |
| CN105887650B (en) * | 2014-11-24 | 2017-12-05 | 中国二冶集团有限公司 | A kind of hyperboloid steel box-girder preparation method |
| CN104562937A (en) * | 2014-12-09 | 2015-04-29 | 中交第二航务工程局有限公司 | Temporary hinged structure for arched continuous beam bridge, as well as construction method thereof |
| CN106087752B (en) * | 2016-06-30 | 2018-01-26 | 中国化学工程第三建设有限公司 | Multispan cable-carried arch bridge construction method |
| CN106436550B (en) * | 2016-09-20 | 2018-04-03 | 江苏京沪重工有限公司 | A kind of spacial special-shaped arch combined bridge structure of two Span Continuous |
| CN111041968A (en) * | 2019-12-31 | 2020-04-21 | 深圳市桥博设计研究院有限公司 | Large-span double-arch-shaft combined arch bridge and design and construction method thereof |
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| JP3728657B2 (en) * | 2000-09-26 | 2005-12-21 | 清水建設株式会社 | Railway bridge replacement method |
| CN1730825A (en) * | 2004-08-08 | 2006-02-08 | 李勇 | Steel pipe concrete double Y-type rigid frame bridge |
| CN1793514A (en) * | 2005-08-29 | 2006-06-28 | 李勇 | Arch |
| CN102108676A (en) * | 2009-12-29 | 2011-06-29 | 上海市政工程设计研究总院 | Arch bridge construction method for combined beam-steel arch combined system |
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2011
- 2011-09-30 CN CN201110297950.1A patent/CN102359059B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3728657B2 (en) * | 2000-09-26 | 2005-12-21 | 清水建設株式会社 | Railway bridge replacement method |
| CN1730825A (en) * | 2004-08-08 | 2006-02-08 | 李勇 | Steel pipe concrete double Y-type rigid frame bridge |
| CN1793514A (en) * | 2005-08-29 | 2006-06-28 | 李勇 | Arch |
| CN102108676A (en) * | 2009-12-29 | 2011-06-29 | 上海市政工程设计研究总院 | Arch bridge construction method for combined beam-steel arch combined system |
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Inventor after: Li Yong Inventor after: Fang Qinhan Inventor after: Qing San Hui Inventor after: Gao Xiaoqun Inventor after: Zhu Hongping Inventor after: Wan Zongjiang Inventor after: Guo Shuai Inventor after: Liu Nianqin Inventor before: Li Yong Inventor before: Fang Qinhan Inventor before: Qin Shunquan Inventor before: Zhu Hongping Inventor before: Chen Yiyan Inventor before: Liu Nianqin |
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Free format text: CORRECT: INVENTOR; FROM: LI YONG FANG QINHAN QIN SHUNQUAN ZHU HONGPING CHEN YIYAN LIU NIANQIN TO: LI YONG FANG QINHAN QING SANHUI GAO XIAOQUN ZHU HONGPING WAN ZONGJIANG GUO SHUAI LIU NIANQIN |
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