CN103046464A - Continuous bridge structure with bridge floor different in width - Google Patents
Continuous bridge structure with bridge floor different in width Download PDFInfo
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- CN103046464A CN103046464A CN2012105917094A CN201210591709A CN103046464A CN 103046464 A CN103046464 A CN 103046464A CN 2012105917094 A CN2012105917094 A CN 2012105917094A CN 201210591709 A CN201210591709 A CN 201210591709A CN 103046464 A CN103046464 A CN 103046464A
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Abstract
The invention discloses a continuous bridge structure with a bridge floor different in width. The continuous bridge structure with the bridge floor different in width comprises a bridge body arranged on piers, the bridge body is formed integrally by means of connection of simply-supported box girders which are abreast horizontally and continuous longitudinally, and is arranged under a turnout zone line, a top plate and flange plates are arranged on the surface of each simply-supported box girder, the top plates of each two longitudinal adjacent simply-supported box girders are connected integrally through a first cast-in-place slab, and the flange plates of each two horizontal adjacent simply-supported box girders are connected integrally through a second cast-in-place slab. The continuous bridge structure with the bridge floor different in width has the advantages of simplicity, rapidness and convenience in construction, universality and good economy and can be widely applied to the technical field of bridges.
Description
Technical field
The present invention relates to the bridge technology field, particularly relate to the different Continuous Bridge structure of a kind of bridge floor width.
Background technology
Along with the construction and development of China's Line for Passenger Transportation, owing to be subject to the restriction of the various factors such as environmental protection, landform, traffic above-ground and urban planning, some stations need to be arranged on the bridge and become overhead station.The Wuhan-Guangzhou passenger-dedicated line terminal---new Guangzhou Railway Station (Guangzhou south railway station) north and south bottle-neck section is about 2.5km, whole bottle-neck section all is located on the bridge, the wide about 300m of the widest part, 28 platform floors in totally 28 station tracks, long-pending 185043 m2 that reach of total bridge floor, being the bottle-neck section that domestic construction is largest, the bridge construction form is the most complicated, technical requirements is the highest, also is maximum in the world bottle-neck section.And all adopting gapless track on the bridge so on a large scale, still belong to the first at home and abroad.
For the safety of train high-speed cruising with guarantee that the structural safety of track switch and bridge and relevant device normally move, must take into full account interaction and impact between track switch-bridge, design scheme is scientifically proved.Pertinent regulations according to " Beijing-Shanghai High-Speed Railway viaduct car Jointless Track Design principle " require:
(1) positive line switch can not be crossed over the beam seam, and track switch need to be arranged on the continuous beam;
(2) to hair line point tongue scope, movable head railway frog scope, the 6m scope should not arrange the beam seam behind the front 6m scope of trouble head, the trouble tail;
(3) smooth-going for the direction that guarantees track, track switch beam lateral displacement difference should satisfy following requirement:
Main track beam seam place lateral displacement difference is no more than 1mm, is no more than 2mm to hair line beam seam place lateral displacement difference maximum, and bearing (cross spacing) arranges that the horizontal free-extension should consider as far as possible to reduce beam is long.
In order to satisfy above-mentioned requirements, the a large amount of single line of the common employing in track switch group district of bottle-neck section becomes two-wire, two-wire and becomes the little span continuous beam of single-box multi-cell prestressing force that three lines, two-wire become four lines, the span of these track switch continuous beams, bridge deck width, length are different, construct very complicated, substantially can't be general, and the design work amount is large, and the template of construction has high input, and is long in time limit.
Therefore the track switch group district bridge construction that seek a kind of simplicity of design, easy construction, has a good economy has very meaning.
Summary of the invention
The objective of the invention is in order to overcome the deficiency of above-mentioned background technology, provide a kind of bridge floor width different bridge floor Continuous Bridge structures, make it have the characteristics of simple structure, quick and convenient, the versatility of construction and good economy performance.
The different Continuous Bridge structure of a kind of bridge floor width provided by the invention, comprise the beam body that is arranged on the bridge pier, described beam body by laterally side by side and vertically continuous simple supported box beam connect into integral body, and be arranged in the switch area circuit under, described simple supported box beam surface is provided with top board and frange plate, connect into integral body by the first Bars In Poured Concrete Slab between the top board of described vertical adjacent simple supported box beam, connect into integral body by the second Bars In Poured Concrete Slab between the frange plate of described horizontal adjacent simple supported box beam.
In technique scheme, described simple supported box beam, the first Bars In Poured Concrete Slab and second the Bars In Poured Concrete Slab one is cast-in-place forms.
In technique scheme, described simple supported box beam is precast construction, and described the first Bars In Poured Concrete Slab and the second Bars In Poured Concrete Slab are built for wet seam and formed.
In technique scheme, vertically the beam-ends of adjacent simple supported box beam is provided with diaphragm.
In technique scheme, described simple supported box beam is cant beam.
The Continuous Bridge structure that bridge floor width of the present invention is different, have following beneficial effect: the different Continuous Bridge structural configuration of described bridge floor width is very flexible, can be easily the bridge span that causes of the continuous variation of width adequate trouble district distance between centers of tracks by adjusting laterally wet seam change, strengthened the globality of structure, satisfied the technical requirements that high-speed railway switch must not be crossed over the beam seam, reached within the specific limits the continuous beam action of track switch, optimized bridge construction, it is quick and convenient to construct, has good economy and technical, this bridge construction has solved well the bottle-neck section bridge width and has constantly changed, the technical barrier that the beam type is too much, greatly expanded the scope of application of simple supported box beam the track switch group, for the selection of other bottle-neck section bridge pattern provides a kind of brand-new thinking.
Description of drawings
Fig. 1 is the vertical structural representation of continuous simple supported box beam of top board among the present invention;
Fig. 2 is the cross-sectional view of A-A among Fig. 1;
Fig. 3 is the cross-sectional view of B-B among Fig. 1;
Fig. 4 is the horizontal structural representation of continuous simple supported box beam of top board among the present invention.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples, but this embodiment should not be construed as limitation of the present invention.
Referring to Fig. 1 to Fig. 4, the different Continuous Bridge structure of bridge floor width of the present invention comprises simple supported box beam 1, the first Bars In Poured Concrete Slab 2, the second Bars In Poured Concrete Slab 3 and diaphragm (not shown).
The different Continuous Bridge structure of bridge floor width adopts the beam body that is arranged on the bridge pier (not shown), described beam body by laterally side by side and vertically continuous simple supported box beam 1 connect into integral body, and be arranged in switch area (not shown) circuit under, to adapt to the different switch area of width, simple supported box beam 1 has replaced the continuous beam (not shown) that prior art adopts among the present invention.Described simple supported box beam 1 surface is provided with top board 1.1 and frange plate 1.1.1, connect into integral body by the first Bars In Poured Concrete Slab 2 between the top board 1.1 of described vertical adjacent simple supported box beam 1, connect into integral body by the second Bars In Poured Concrete Slab 3 between the frange plate 1.1.1 of described horizontal adjacent simple supported box beam 1, in the present embodiment, can take the first job practices, i.e. described simple supported box beam 1, the first Bars In Poured Concrete Slab 2 and cast-in-place the forming of the second Bars In Poured Concrete Slab 3 one; Also can adopt the second job practices, namely described simple supported box beam 1 is precast construction, and described the first Bars In Poured Concrete Slab 2 and the second Bars In Poured Concrete Slab 3 are built for wet seam and formed; Described simple supported box beam 1 is cant beam, and described cant beam arranges and can make whole bridge more attractive in appearance that in optimum embodiment, vertically the beam-ends of adjacent simple supported box beam 1 is provided with diaphragm.
The implementation step of the bridge floor Continuous Bridge structure that bridge floor width of the present invention is different:
(1) as shown in Figure 1, owing to be in switch area, central lines of track 4 is in a certain angle with simple supported box beam 1 axis, at beam seam place longitudinally the top board 1.1 of adjacent simple supported box beam 1 watered by wet seam and to build up the first Bars In Poured Concrete Slab 2, each top board 1.1 is watered build up integral body, make adjacent simple supported box beam 1 at beam seam place not only continuously but also can rotate, satisfy the continuous requirement of bridge floor of gapless track track switch;
(2) as shown in Figure 4, when the track switch of gapless track is laterally crossed over, be to be provided with branch-cut bridge 7 between right line central lines of track 5 and the left line central lines of track 6, with horizontal cast-in-place formation the second Bars In Poured Concrete Slab 3 of the frange plate 1.1.1 of adjacent single line simple supported box beam 1, each frange plate 1.1.1 is watered build up integral body, realize that bridge deck are laterally continuous, when adjacent simple supported box beam 1 lateral separation is far away, can thicken top board 1.1 or increase diaphragm, to satisfy the stressed and continuous requirement of bridge floor gapless track track switch of bridge deck.
The bridge of the whole bottle-neck section (not shown) of Guangzhou south railway station has simply supported beam 742 holes of various spans, various types of track switch continuous beams 35.Positive line switch district (not shown) bridge adopts single line to become two-wire, two-wire to become the little span continuous beam of single-box multi-cell prestressing force that three lines, two-wire become four lines, and every group of track switch is arranged on the continuous beam, and track switch is not crossed over the beam seam.
Bridge to hair line switch area (not shown) adopts the continuous simple supported box beam of horizontal top board 1, non-switch area (not shown) bridge adopts simple supported box beam 1, utilizes the difference of width of the frange plate 1.1.1 of simple supported box beam 1 to adapt to different line pitch.Solved so well the bottle-neck section bridge width constantly changes, the too much technical barrier of beam type, greatly expanded the scope of application of simple supported box beam 1 at bottle-neck section, for the selection of other bottle-neck section bridge pattern provides a kind of brand-new thinking.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
The content that is not described in detail in this manual belongs to the known prior art of this area professional and technical personnel.
Claims (5)
1. Continuous Bridge structure that bridge floor width is different, it is characterized in that: comprise the beam body that is arranged on the bridge pier, described beam body by laterally side by side and vertically continuous simple supported box beam (1) connect into integral body, and be arranged in the switch area circuit under, described simple supported box beam (1) surface is provided with top board (1.1) and frange plate (1.1.1), connect into integral body by the first Bars In Poured Concrete Slab (2) between the top board (1.1) of described vertical adjacent simple supported box beam (1), connect into integral body by the second Bars In Poured Concrete Slab (3) between the frange plate (1.1.1) of described horizontal adjacent simple supported box beam (1).
2. the different Continuous Bridge structure of bridge floor width according to claim 1 is characterized in that: described simple supported box beam (1), the first Bars In Poured Concrete Slab (2) and cast-in-place the forming of the second Bars In Poured Concrete Slab (3) one.
3. the different Continuous Bridge structure of bridge floor width according to claim 1 is characterized in that: described simple supported box beam (1) is precast construction, and described the first Bars In Poured Concrete Slab (2) and the second Bars In Poured Concrete Slab (3) are built for the seam that wets and formed.
4. the different Continuous Bridge structure of each described bridge floor width in 3 according to claim 1, it is characterized in that: vertically the beam-ends of adjacent simple supported box beam (1) is provided with diaphragm.
5. the different Continuous Bridge structure of each described bridge floor width in 3 according to claim 1, it is characterized in that: described simple supported box beam (1) is cant beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105917094A CN103046464A (en) | 2012-12-31 | 2012-12-31 | Continuous bridge structure with bridge floor different in width |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105917094A CN103046464A (en) | 2012-12-31 | 2012-12-31 | Continuous bridge structure with bridge floor different in width |
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| CN103046464A true CN103046464A (en) | 2013-04-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155399A (en) * | 2015-07-31 | 2015-12-16 | 中铁第四勘察设计院集团有限公司 | Small box girder bridge and building method thereof |
| CN110373993A (en) * | 2019-08-13 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of control railroad bridge end deformation device |
| CN111236037A (en) * | 2020-03-16 | 2020-06-05 | 浙江省交通规划设计研究院有限公司 | Composite box girder and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127515A1 (en) * | 1983-05-16 | 1984-12-05 | Bouygues | Preformed-segments bridge, prestressed by exterior cables, segments for this bridge and methods of producing them |
| DE3600329A1 (en) * | 1986-01-08 | 1987-07-09 | Josef Holzbauer | Steel section for field and road bridges |
| CN200974956Y (en) * | 2006-12-11 | 2007-11-14 | 毛旭秋 | Prestressed concrete box girder |
| CN101260644A (en) * | 2008-04-17 | 2008-09-10 | 中铁工程设计咨询集团有限公司 | Simply supported girder box and method of manufacture |
| CN201180254Y (en) * | 2008-04-17 | 2009-01-14 | 中铁工程设计咨询集团有限公司 | Simply supported box girder |
| CN101368373A (en) * | 2008-09-19 | 2009-02-18 | 中铁大桥局股份有限公司 | Long continuous structural steel box beam or combination box beam construction method |
| CN201738226U (en) * | 2010-07-15 | 2011-02-09 | 中铁第一勘察设计院集团有限公司 | Railway box girder assembled and cemented by precast segments |
-
2012
- 2012-12-31 CN CN2012105917094A patent/CN103046464A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127515A1 (en) * | 1983-05-16 | 1984-12-05 | Bouygues | Preformed-segments bridge, prestressed by exterior cables, segments for this bridge and methods of producing them |
| DE3600329A1 (en) * | 1986-01-08 | 1987-07-09 | Josef Holzbauer | Steel section for field and road bridges |
| CN200974956Y (en) * | 2006-12-11 | 2007-11-14 | 毛旭秋 | Prestressed concrete box girder |
| CN101260644A (en) * | 2008-04-17 | 2008-09-10 | 中铁工程设计咨询集团有限公司 | Simply supported girder box and method of manufacture |
| CN201180254Y (en) * | 2008-04-17 | 2009-01-14 | 中铁工程设计咨询集团有限公司 | Simply supported box girder |
| CN101368373A (en) * | 2008-09-19 | 2009-02-18 | 中铁大桥局股份有限公司 | Long continuous structural steel box beam or combination box beam construction method |
| CN201738226U (en) * | 2010-07-15 | 2011-02-09 | 中铁第一勘察设计院集团有限公司 | Railway box girder assembled and cemented by precast segments |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155399A (en) * | 2015-07-31 | 2015-12-16 | 中铁第四勘察设计院集团有限公司 | Small box girder bridge and building method thereof |
| CN110373993A (en) * | 2019-08-13 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of control railroad bridge end deformation device |
| CN111236037A (en) * | 2020-03-16 | 2020-06-05 | 浙江省交通规划设计研究院有限公司 | Composite box girder and manufacturing method thereof |
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Application publication date: 20130417 |