CN204530427U - A kind of cable stayed bridge being provided with multi-functional broad flange beam - Google Patents
A kind of cable stayed bridge being provided with multi-functional broad flange beam Download PDFInfo
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- CN204530427U CN204530427U CN201520075642.8U CN201520075642U CN204530427U CN 204530427 U CN204530427 U CN 204530427U CN 201520075642 U CN201520075642 U CN 201520075642U CN 204530427 U CN204530427 U CN 204530427U
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- bridge
- rectangular box
- main span
- end bay
- cable stayed
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Abstract
The utility model discloses a kind of cable stayed bridge being provided with multi-functional broad flange beam, comprise bridge tower, suspension cable, main span and end bay, the centre of two bridge towers is main span, and both sides are end bay; Described main span and end bay are inverted trapezoidal box-beam structure, are made up of the triangle case beam of the rectangular box beam being positioned at central authorities with the both sides being positioned at described rectangular box beam; Be central isolated area above described rectangular box beam, above described triangle case back plate, be provided with single width bridge floor.A kind of cable stayed bridge being provided with multi-functional broad flange beam of the present utility model is applicable to the cable stayed bridge that bridge tower is positioned at bridge central authorities, and forming rock-steady structure, is a kind of brand-new design form.
Description
Technical field
The utility model relates to cable stayed bridge field, is specifically related to a kind of cable stayed bridge being provided with multi-functional broad flange beam.
Background technology
Case beam is a kind of form of structure of bridge, because its external form resembles a chest therefore is called case beam.Steel box-girder, is again steel plate box ellbeam, is the box-beam structure be formed from steel, and is also the form of structure that Large Span Bridges is conventional, is generally used on the larger bridge of span.
In the bridge of large span cable support, the span of the bridge girder that steel box-girder is made reaches hundreds of rice and supreme km.Common box-beam structure is generally divided into some beam sections separately manufacture and install, and its cross section has wide cut and flat profile feature, and depth-width ratio reaches about 1:10.
Specifically, steel box-girder is generally formed by connecting by all-welded mode by top board, base plate, web and diaphragm, midfeather and stiffening rib etc.Wherein top board is the cross bridge floor board be made up of cover plate and longitudinal stiffener.
In current large span stayed-cable bridge design, main case beam form has I-shaped body, box-shaped, truss-like etc.These different case beam forms can meet general communication function bridge.Have on the bridge of specific function sexual needs for some, the section form of its existing box beam casting but can not meet, or economic cost is higher.
Summary of the invention
Main purpose of the present utility model is the deficiency existed to solve above-mentioned background technology, proposes the cable stayed bridge being provided with multi-functional broad flange beam that a kind of overall structure is stable, bridge tower can be made to be fixed in the middle part of case beam.
For achieving the above object, the utility model proposes a kind of cable stayed bridge of multi-functional broad flange beam, comprise bridge tower, suspension cable, main span and end bay, the centre of two bridge towers is main span, both sides are end bay, described main span and end bay are inverted trapezoidal box-beam structure, are made up of the triangle case beam of the rectangular box beam being positioned at central authorities with the both sides being positioned at described rectangular box beam; Be central isolated area above described rectangular box beam, above described triangle case back plate, be provided with single width bridge floor.
In technique scheme, rectangular box beam is run through in the bottom of described bridge tower, and described bridge tower both sides are provided with bracket, and the both sides of described rectangular box beam are overlapped on described bracket.
In technique scheme, rectangular box beam and triangle case beam transverse width in length range of described main span are all constant.
In technique scheme, rectangular box beam and the triangle case beam transverse width of described main span are all constant; The rectangular box beam inside of described main span is provided with inclined support bar, and bottom is provided with sidewalk
In technique scheme, from main span joint in outward direction, the transverse width of described end bay rectangular box beam reduces gradually; The transverse width of the triangle case beam of described end bay is constant.
In technique scheme, the dual-side of described central isolated area fixes the bottom of suspension cable.
In technique scheme, described main span adopts steel box girder, and described end bay adopts PC Box Girder Structure.
The utility model proposes a kind of cable stayed bridge being provided with multi-functional broad flange beam, 1: ensure that the Stability Analysis of Structures of the connected bridge deck of cable-stayed bridge main-beam and overall bridge, easy construction, investment are reasonable; 2: be particularly provided with isolated area, bridge floor is divided into two single width bridge floors, is conducive to driving convenient; 3: meet all types of transport need, bridge tower is arranged in the middle part of case beam simultaneously, reduces bridge tower project scale.
Accompanying drawing explanation
The tilting cable stayed bridge schematic diagram that Fig. 1 applies for the utility model.
Fig. 2 is bridge floor and the case beam cross sectional representation at M place in Fig. 1.
Fig. 3 is bridge floor and the case beam cross sectional representation at end bay N place in Fig. 1.
Fig. 4 is the cross-sectional view of main span in Fig. 1.
In figure: 1-bridge tower, 2-main span, 3-end bay, 4-single width bridge floor, 5-central authorities isolated area, 6-rectangular box beam, 7-triangle case beam, 8-inclined support bar, 9-sidewalk, 10-bracket, 11-suspension cable.
Detailed description of the invention
Below in conjunction with accompanying drawing, performance of the present utility model is described, but they do not form to restriction of the present utility model, only for example.Simultaneously by illustrating that advantage of the present utility model will become clearly and easy understand.
Embodiment 1: see Fig. 1.The present embodiment proposes a kind of tilting cable stayed bridge, bag bridge tower 1 and main span 2 and end bay 3.Be main span 2 between two described bridge towers 1, the outside of two bridge towers 1 is respectively two end bays 3
See Fig. 1 ~ 4, tilting cable stayed bridge described in the present embodiment is vertically arranged with two bridge towers 1, laterally adopts single bridge tower structure.Two described bridge towers 1 lay respectively at the both sides of main span 2.In the lateral center of main span 2 one end, a bridge tower 1 is only set.The both lateral sides of bridge tower 1 is single width bridge floor 4.
See Fig. 4, in the present embodiment, the steel box girder that the main span 2 of cable stayed bridge adopts designs, overall in inverted trapezoidal.Inverted trapezoidal steel box-girder is made up of with the triangle case beam 7 being positioned at rectangular box beam 6 both sides the rectangular box beam 6 being positioned at central authorities.Rectangular box beam 6 and the triangle case beam 7 of main span 2 are as wide structure, and omnidistance width is constant.
See Fig. 4, described rectangular box beam 6 inside is also horizontally arranged with multiple inclined support bar 8.On same vertical section, the left and right sides is respectively arranged with an inclined support bar 8.The bottom of these two inclined support bars 8 is separately fixed at the bottom edge place of rectangular box beam 6.The top of these two inclined support bars 8 is fixed on the ceiling center of described rectangular box beam 6.On different vertical section, homonymy inclined support bar 8 is arranged in parallel one group.The below of two groups of inclined support bars 8 arranged in parallel, the top of rectangular box beam 6 internal backplane is provided with sidewalk 9, current for pedestrian, the regular maintenance of this bridge.
It is central isolated area 5 above the top board of described rectangular box beam 6.Described central isolated area 5 be longitudinally the whole process of main span 2, transverse direction and rectangular box beam 6 wide.The dual-side of described central isolated area 5 longitudinally installs the bottom of suspension cable 11.
The both sides of rectangular box beam 6 are provided with triangle case beam 7.The side wall of described triangle case beam 7 and top board above single width bridge floor 4 is set.
See Fig. 3, end bay 3 adopts PC Box Girder Structure.Identical with main span 2, described end bay 3 entirety is in inverted trapezoidal.Inverted trapezoidal steel box-girder is made up of with the triangle case beam 7 being positioned at rectangular box beam 6 both sides the rectangular box beam 6 being positioned at central authorities.Unlike, the rectangular box beam 6 of end bay 3 is not wide structure.The joint of two end bays 3 and main span 2 is initiating terminal, extends respectively to both sides.The width of the rectangular box beam 6 of the initiating terminal of end bay 3 and the identical of main span 2, then reduce gradually.Therefore, the width of the central isolated area 5 of end bay 3 is also reduce gradually.
Different with main span 2, in the rectangular box beam 6 of end bay 3, inclined support bar 8 is not set, is provided with sidewalk 9 yet.The dual-side of the central isolated area 5 of end bay 3 does not fix the bottom of suspension cable 11 yet.
Identical with main span 2, the triangle case beam 7 of end bay 3 is wide structure, and omnidistance width is constant.Above the top board of described triangle case beam 7, single width bridge floor 4 is set.
See Fig. 2, the bottom of bridge tower 1 is provided with bracket 10.The rectangular box beam 6 of main span 2 and rectangular box beam 6 joint of end bay 3 are positioned on bracket 10.Rectangular box beam 6 designs, to ensure that bridge tower 1 runs through rectangular box beam 6 for discontinuous construction.
Embodiment 2: the present embodiment proposes a kind of tilting cable stayed bridge utilizing bridge tower 1 to design specifically.The structure of this cable stayed bridge is substantially the same manner as Example 1.
The main bridge total length of tilting cable stayed bridge described in the present embodiment is 845.4 meters.Wherein, main span 2 is 575 meters.As shown in figs. 1 and 4, the present embodiment is tilting cable stayed bridge, and the steel box girder design that main span 2 adopts, in inverted trapezoidal.Described inverted trapezoidal steel box-girder is made up of with the triangle case beam 7 being positioned at rectangular box beam 6 both sides the rectangular box beam 6 being positioned at central authorities.In the present embodiment, the transverse width of rectangular box beam 6 is 11 meters, and namely the transverse width of central isolated area 5 is 11 meters.The transverse width of triangle case beam 7 is 19 meters, and namely a single width bridge floor 4 is 19 meters.Therefore, the transverse direction of described main span 2 is 49 meters.
The concrete Region dividing of a single width bridge floor 4 is as shown in table 1:
Table 1: the horizontal zoning of single width bridge floor 4
| Railing | 0.5 meter |
| Go slowly | 7 meters |
| Anti-collision wall | 0.5 meter |
| Anti-collision wall | 0.5 meter |
| Runway | 3 × 3.5 meters |
| Add up to: single width bridge floor is wide | 19 meters |
Conclusion: consider track composition, sidewalk, slow-vehicle system, with the factor such as the mating of bridge tower 1, economy, adopt steel box-girder to be unique alternative plan.Therefore, in the present embodiment, the rectangular box beam 6 of main span 2 and triangle case beam 7 adopt steel box girder to design.
As shown in Figure 3, consider the factor such as construction costs and Stability Analysis of Structures, in the present embodiment, end bay 3 adopts PC Box Girder Structure to design.Wherein, the rectangular box beam 6 of end bay 3 is not wide structure.The width of the rectangular box beam 6 of the initiating terminal of end bay 3 is 11 meters, is then gradually reduced to 2 meters.Same, the width of the central isolated area 5 of end bay 3 is also be gradually reduced to 2 meters by 11 meters.
Identical with main span 2, arrange single width bridge floor 4 above the triangle case beam 7 of end bay 3, be similarly wide structure, omnidistance width is also 19 meters.The concrete Region dividing of a single width bridge floor 4 is also as shown in table 1.
This spanning footpath is 575m, it is the economic span scope of steel box-girder, superposed beam, and all there is obvious unfavorable factor in wide concrete box girder in construction period and the anticracking of operation, marine constructure scheme, duration, environmental protection etc., be difficult to the requirement meeting 100 year application life of this bridge, therefore abandon concrete beam scheme.Because span is at more than 500m, the deadweight of the girder of main span should reduce as far as possible, is preferred plan from heavy and light, steel girder that span ability is large.
Applying more in common steel girder is single-box multi-cell steel box-girder, has wind resistance good, the advantages such as girder integral rigidity is large, but cost is relatively high.For only post tower, the relation according to bridge floor and bridge tower should adopt fraction case beam.Consider that single-box multi-cell steel using amount is comparatively large, case room is more, and pair cross-section is optimized, and reduces case room, both sides is arranged to triangle case room.By optimizing the steel using amount greatly reducing girder above, can be guaranteed by the stressed of adequate measure cross section and rigidity.This kind of cable stayed bridge structure novelty being provided with multi-functional broad flange beam, handsome in appearance, succinct, from heavy and light, save steel using amount.
Other unspecified part all has prior art.
Claims (7)
1. one kind is provided with the cable stayed bridge of multi-functional broad flange beam, comprise bridge tower (1), main span (2), end bay (3) and suspension cable (11), the centre of two bridge towers (1) is main span (2), both sides are end bay (3), it is characterized in that: described main span (2) and end bay (3) are inverted trapezoidal box-beam structure, be made up of the triangle case beam (7) of the rectangular box beam (6) and the both sides that are positioned at described rectangular box beam (6) that are positioned at central authorities; Described rectangular box beam (6) top is central isolated area (5), is provided with single width bridge floor (4) above described triangle case beam (7) top board.
2. a kind of cable stayed bridge being provided with multi-functional broad flange beam according to claim 1, it is characterized in that: rectangular box beam (6) is run through in the bottom of described bridge tower (1), described bridge tower (1) both sides are provided with bracket (10), and the straight wall of the both sides of described rectangular box beam (6) is overlapped on described bracket (10).
3. a kind of cable stayed bridge being provided with multi-functional broad flange beam according to claim 1, is characterized in that: rectangular box beam (6) and triangle case beam (7) transverse width in length range of described main span (2) are all constant.
4. a kind of cable stayed bridge being provided with multi-functional broad flange beam according to claim 1, it is characterized in that: rectangular box beam (6) inside of described main span (2) is provided with inclined support bar (8), and bottom is provided with sidewalk (9).
5. a kind of cable stayed bridge being provided with multi-functional broad flange beam according to claim 1, it is characterized in that: from main span (2) joint in outward direction, the transverse width of described end bay (3) rectangular box beam (6) reduces gradually; The transverse width of the triangle case beam (7) of described end bay (3) is constant.
6. a kind of cable stayed bridge being provided with multi-functional broad flange beam according to claim 1, is characterized in that: the dual-side of described central isolated area (5) fixes the bottom of suspension cable (11).
7. according to a kind of cable stayed bridge being provided with multi-functional broad flange beam described in claim 1, it is characterized in that: described main span (2) adopts steel box girder, described end bay (3) adopts PC Box Girder Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075642.8U CN204530427U (en) | 2014-12-16 | 2015-02-03 | A kind of cable stayed bridge being provided with multi-functional broad flange beam |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420800497 | 2014-12-16 | ||
| CN2014208004970 | 2014-12-16 | ||
| CN201520075642.8U CN204530427U (en) | 2014-12-16 | 2015-02-03 | A kind of cable stayed bridge being provided with multi-functional broad flange beam |
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| CN204530427U true CN204530427U (en) | 2015-08-05 |
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| CN201520075642.8U Withdrawn - After Issue CN204530427U (en) | 2014-12-16 | 2015-02-03 | A kind of cable stayed bridge being provided with multi-functional broad flange beam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612033A (en) * | 2014-12-16 | 2015-05-13 | 中铁第四勘察设计院集团有限公司 | Cable-stayed bridge with multifunctional large cantilever box girders |
| CN106592404A (en) * | 2016-12-30 | 2017-04-26 | 中铁第四勘察设计院集团有限公司 | Steel-concrete composite beam of high speed railway |
| CN106758815A (en) * | 2016-12-29 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | Bridge floor bridge tower structure is worn in one kind |
| CN109868757A (en) * | 2019-04-08 | 2019-06-11 | 大连理工大学 | A kind of reinforcing device and method of suspention system arch bridge |
-
2015
- 2015-02-03 CN CN201520075642.8U patent/CN204530427U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612033A (en) * | 2014-12-16 | 2015-05-13 | 中铁第四勘察设计院集团有限公司 | Cable-stayed bridge with multifunctional large cantilever box girders |
| CN104612033B (en) * | 2014-12-16 | 2016-06-15 | 中铁第四勘察设计院集团有限公司 | A kind of cable-stayed bridge being provided with multi-functional broad flange beam |
| CN106758815A (en) * | 2016-12-29 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | Bridge floor bridge tower structure is worn in one kind |
| CN106758815B (en) * | 2016-12-29 | 2018-12-14 | 中铁第四勘察设计院集团有限公司 | Bridge floor bridge tower structure is worn in one kind |
| CN106592404A (en) * | 2016-12-30 | 2017-04-26 | 中铁第四勘察设计院集团有限公司 | Steel-concrete composite beam of high speed railway |
| CN109868757A (en) * | 2019-04-08 | 2019-06-11 | 大连理工大学 | A kind of reinforcing device and method of suspention system arch bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150805 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |