CN208501467U - The cable-stayed bridge of girder is worn in a kind of rail-road same layer unbalance loading arrangement bridge tower - Google Patents
The cable-stayed bridge of girder is worn in a kind of rail-road same layer unbalance loading arrangement bridge tower Download PDFInfo
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- CN208501467U CN208501467U CN201820939712.3U CN201820939712U CN208501467U CN 208501467 U CN208501467 U CN 208501467U CN 201820939712 U CN201820939712 U CN 201820939712U CN 208501467 U CN208501467 U CN 208501467U
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Abstract
The utility model discloses the cable-stayed bridges that girder is worn in a kind of rail-road same layer unbalance loading arrangement bridge tower, including girder, the more suspension cables along girder along bridge to multiple bridge towers of arrangement and for connecting the bridge tower Yu girder direction across bridge two sides, the girder includes the lattice girder in length and breadth for arranging the first highway, the direction across bridge two sides of the lattice girder in length and breadth are separately provided for the first steel case side bar of arrangement railway and the second steel case side bar for arranging the second highway, and the lattice girder in length and breadth and the first steel case side bar, the second steel case side bar are spliced by bolt.The girder of the utility model uses unsymmetrical arrangement form, small compared to layered arrangement line elevation, and the wiring condition for improving road and rail is arranged symmetrically compared to same layer, saves space and ring road setting, can save construction investment, and unobscured.
Description
Technical field
The utility model belongs to the technical field of technical field of bridge engineering, and in particular to a kind of rail-road same layer unbalance loading arrangement
The cable-stayed bridge of girder is worn in bridge tower.
Background technique
Currently, the cable-stayed bridge of domestic combined highway and metro mostly uses greatly the bridge floor arrangement form of layered arrangement, such as application No. is
201720395421.8 Chinese utility model patent discloses a kind of bridge arragement construction of highway and rail traffic building jointly, including Highway Main
The median strip Chu Yan highway girder extending direction of beam, the highway girder is arranged at intervals with several bridge piers, the bridge pier
Top be provided with for the track current for rail traffic vehicles.The bridge arragement construction of above-mentioned highway and rail traffic building jointly, is utilized public affairs
Bridge pier is arranged in the idle space of road girder median strip, track is erected at arrangement upper layer rail traffic on bridge pier, although can
To reduce bridge deck width caused by dividing strip, because Repeated-load of High-speed Track Vehicles is relatively small, but this arrangement form is improved
Floor elevation, increases the length of access bridge.
With the continuous development and technological progress of national highway and railway construction and each province and city railway construction and combined highway and metro
The enthusiasm of bridge is surging, and combined highway and metro bridge quantity is increasing, and railway loading puts centre, and highway load assignment is in the same of both sides
Layer symmetric arrangement also has application, and such as application No. is 201711374882.8 Chinese utility model patents to disclose a kind of public affairs
The dual-purpose bridge leveling main beam section construction of iron, including railway girder, two sides are separately connected left and right highway girder, railway girder
Top surface and the top surface of left and right highway girder be generally aligned in the same plane, the rail-road between railway girder and left and right highway girder is parallel
Dividing strip is respectively equipped with anchor system, and anchor system is for connecting suspension cable, if railway girder and left and right highway girder include
A dry diaphragm plate, the section of each diaphragm plate are that section thickens structure.In above scheme, constructed with the main beam section, oblique pull
Rope is connected to the two sides of railway girder, rather than the entirely two sides of rail-road girder, reduces girder moment of flexure, but antitorque to improve
Rigidity and wind resistance increase bridge deck width, lateral stressed big, require height, and the utilization rate of material to structural stability
It is not high.In addition, railway loading puts centre in above scheme, highway load assignment both sides same layer symmetric arrangement, in bridge
The wiring of head road and rail will appear intersection, and wiring is complicated, need biggish space place, space utilization rate is low.
Summary of the invention
The purpose of this utility model be exactly in order to solve deficiency existing for above-mentioned background technique, provide a kind of reasonable stress,
The cable-stayed bridge of girder is worn in the high rail-road same layer unbalance loading arrangement bridge tower of stable structure, space utilization rate.
In a kind of rail-road same layer unbalance loading that in order to achieve the above purposes, the technical solution adopted by the utility model is: arrangement bridge tower
The cable-stayed bridge for wearing girder, including girder, along girder along bridge to multiple bridge towers of arrangement and for connecting the bridge tower and girder
More suspension cables of direction across bridge two sides, the girder include the lattice girder in length and breadth for being used to arrange the first highway positioned at middle part, institute
The direction across bridge two sides for stating lattice girder in length and breadth are separately provided for the first steel case side bar of arrangement railway and for arranging that second is public
The second steel case side bar on road, the lattice girder in length and breadth and the first steel case side bar, the second steel case side bar are spliced by bolt.
In above-mentioned technical proposal, the lattice girder in length and breadth includes the stringer and box crossbeam of more square crossings connection, phase
It is additionally provided with cross rib between adjacent two stringers, the cross rib is connect with stringer square crossing, the top surface of the lattice girder in length and breadth
It is equipped with cross bridge floor board.
In above-mentioned technical proposal, the first steel case side bar and the second steel case side rail configuration are identical；The first steel case side
Beam and the second steel case side bar include, to the top plate and bottom plate of arrangement, being provided with endosternum between the top plate and bottom plate along bridge
With outer web, the top plate, endosternum, bottom plate, outer web end successively weld and form box-structure；The endosternum and outer
Multiple diaphragm plates along direction across bridge arrangement are provided between web.
In above-mentioned technical proposal, tuyere, the face side wall and outer web of the tuyere are provided on the outside of the outer web
Lateral wall fit.
In above-mentioned technical proposal, the anchor structure for anchoring suspension cable is provided with above the outer web.
In above-mentioned technical proposal, the top plate and bottom plate, endosternum, outer web medial surface be welded with reinforcing rib.
In above-mentioned technical proposal, the bridge tower is located at the middle part of girder, and the bridge tower includes upper king-post strut, middle king-post and lower tower
Column, for the middle king-post between upper king-post strut and lower king-post strut, each middle king-post includes two direction across bridge towers positioned opposite
Bar, two tower bars reserved gap between lattice girder in length and breadth and the first steel case side bar, the second steel case side bar respectively
It is fixedly connected across with lower king-post strut.
In above-mentioned technical proposal, the lower king-post strut includes two direction across bridge tower limb positioned opposite, two tower limbs it
Between be provided with lower beam.
In above-mentioned technical proposal, the lateral outer side of the lower king-post strut is each provided with for carrying the first steel case side bar, second
The bracket beam of steel case side bar.
In above-mentioned technical proposal, the both lateral sides of the upper king-post strut pass through suspension cable respectively and fix with corresponding anchor structure
Connection.
The beneficial effects of the utility model are:
First, the rail-road same layer girder bridge floor of the utility model uses unsymmetrical arrangement form, layered arrangement route is compared
Absolute altitude is small, and the wiring condition for improving road and rail, system reasonable stress under uneven loading action, basis are arranged symmetrically compared to same layer
Quantity is reduced, and saves space and ring road setting, and economic index is more excellent, is a kind of combined highway and metro bridge floor arrangement shape being worthy to be popularized
Formula.
Second, the utility model is using the double case main beam structures of separate type, the three parts of girder are independently formed, compared to entirety
Steel box-girder manufactures convenient for full batch production, and the manufacture of girder, transport, install convenient, speed of application is fast, and building site is avoided to weld, and guarantees to apply
Work precision and quality can save construction investment, and unobscured, and overall performance is good, and torsional rigidity is big, compared to Integral Steel
Box beam has saved steel using amount, reduces cost.
Third, the road and rail two sides suspension cable of the utility model use different specification and initial tension, balance dead load and
Unbalance loading effect under mobile load, structure is reasonable.
Fourth, wearing the structure type of girder in the bridge tower of the utility model, reduce in the case where not increasing bridge deck width
The material and operating expenses of pylon foundation construction.
Fifth, the cable-stayed bridge of the utility model has good aesthetic effect, structure is merrily and lightheartedly soft and graceful, can ideally with week
Collarette border combines, and social benefit is significant.
Detailed description of the invention
Fig. 1 is that the utility model rail-road same layer unbalance loading arranges the structural schematic diagram that the cable-stayed bridge of girder is worn in bridge tower；
Fig. 2 is the schematic cross-sectional view of Fig. 1 middle girder；
Fig. 3 is the structural schematic diagram in Fig. 2 along the direction I-I；
In figure: 1- girder, 2- bridge tower (king-post, 2.3- lower king-post strut in 2.1- upper king-post strut, 2.2-), 3- suspension cable, 4- are in length and breadth
Lattice girder (4.1- stringer, 4.2- box crossbeam, 4.3- cross rib, 4.4- cross bridge floor board), 5- the first steel case side bar (5.1-
Top plate, 5.2- bottom plate, 5.3- endosternum, 5.4- outer web, 5.5- diaphragm plate, 5.6- tuyere, 5.7- anchor structure), 6- second
Steel case side bar.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, convenient for being well understood
The utility model, but they do not constitute the utility model and limit.
Wear the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower as shown in Figure 1, including girder 1, along girder 1 along bridge
The more suspension cables 3 to multiple bridge towers 2 of arrangement and for connecting bridge tower 2 Yu 1 direction across bridge two sides of girder, girder 1 include
It is used to arrange lattice girder 4 in length and breadth of the first highway positioned at middle part, the direction across bridge two sides of lattice girder 4 are separately provided for cloth in length and breadth
Set the first steel case side bar 5 of railway and the second steel case side bar 6 for arranging the second highway, three parts of girder lattice girder in length and breadth
4 carry out live bolt with the first steel case side bar 5, the second steel case side bar 6 after factory manufactures respectively, transports to building site,
It is assembled using single-cantilever again.In this way, being resisted using the double case main beam structures of separate type of the first steel case side bar 5, the second steel case side bar 6
Torsion stiffness is big, and wind resistance is good, and steel utilization ratio is high.Girder is divided into three relatively independent parts, compared to integral steel box
Beam manufactures and is transported convenient for full batch production, building site is avoided to weld, and guarantees construction precision and quality.Road and rail two sides suspension cable is adopted
With different specification and initial tension, the unbalance loading effect under dead load and mobile load is balanced, structure is reasonable.
In above-mentioned technical proposal, bridge tower 2 is located at the middle part of girder 1, and bridge tower 2 is applied using automatic hydraulic climbing form system is segmented
Work.Bridge tower 2 includes upper king-post strut 2.1, middle king-post 2.2 and lower king-post strut 2.3, and middle king-post 2.2 is located at upper king-post strut 2.1 and lower king-post strut 2.3
Between, it is each in king-post 2.2 include two direction across bridge tower bar positioned opposite, two tower bars are respectively from lattice girder 4 in length and breadth and the
Reserved gap between one steel case side bar 5, the second steel case side bar 6 is passed through to be fixedly connected with lower king-post strut 2.3.Lower king-post strut 2.3
Including two direction across bridge tower limb positioned opposite, lower beam 2.4, the lateral outer side of lower king-post strut 2.3 are provided between two tower limbs
It is each provided with the bracket beam 2.5 for carrying the first steel case side bar 5, the second steel case side bar 6.In this way, rail-road same layer asymmetry cloth
It sets, the cable-stayed bridge of girder is worn in bridge tower, improve the wiring condition of combined highway and metro, uneven loading action flowering structure system reasonable stress,
Basic quantity is reduced, and girder manufacture, transport, install convenient, speed of application is fast, and economic index is more excellent.
As shown in Figures 2 and 3, lattice girder 4 is connected including more square crossings in length and breadth stringer 4.1 and box crossbeam 4.2,
Cross rib 4.3 is additionally provided between two neighboring stringer 4.1, cross rib 4.3 is connect with 4.1 square crossing of stringer, in length and breadth the top of lattice girder 4
Face is equipped with cross bridge floor board 4.4.First steel case side bar 5 is identical with the second steel case 6 structures of side bar；First steel case side bar 5
It include, to the top plate 5.1 and bottom plate 5.2 of arrangement, being arranged between top plate 5.1 and bottom plate 5.2 along bridge with the second steel case side bar 6
Have an endosternum 5.3 and outer web 5.4, top plate 5.1, endosternum 5.3, bottom plate 5.2, outer web 5.4 end successively weld to be formed
Box-structure, top plate 5.1, bottom plate 5.2, endosternum 5.3, outer web 5.4 medial surface be welded with reinforcing rib 5.8.Endosternum
Multiple diaphragm plates 5.5 along direction across bridge arrangement are provided between 5.3 and outer web 5.4.The outside of outer web 5.4 is provided with tuyere
5.6, the lateral wall of the face side wall and outer web 5.4 of tuyere 5.6 fits.The top of outer web 5.4 is provided with for anchoring
The anchor structure 5.7 of suspension cable, it is fixed with corresponding anchor structure 5.7 that the both lateral sides of upper king-post strut 2.1 pass through suspension cable 3 respectively
Connection.In this way, the utility model uses rail-road same layer arrangement form, railway is arranged in side, and highway is arranged in the other side, lowers
Highway absolute altitude improves the wiring condition of combined highway and metro bridge, in length and breadth lattice girder 4, the first steel case side bar 5 and the second steel case side bar 6
Meet the reasonability of rail-road same layer unbalance loading arragement construction stress, while improving stock utilization, guarantees construction quality.Moreover,
In the case where not increasing bridge deck width, bridge tower and girder lateral arrangement form are solved, guarantees the safe, economic, beautiful of structure.
More than, only specific embodiment of the present utility model, it is noted that it is existing skill that remaining is unspecified
Art, anyone skilled in the art is in the technical scope disclosed by the utility model, the variation that can readily occur in or
Replacement, should be covered within the scope of the utility model.
Claims (10)
1. wear the cable-stayed bridge of girder in a kind of rail-road same layer unbalance loading arrangement bridge tower, including girder (1), along girder (1) along bridge to cloth
The multiple bridge towers (2) set and the more suspension cables (3) for connecting the bridge tower (2) Yu girder (1) direction across bridge two sides,
It is characterized by: the girder (1) includes the lattice girder in length and breadth (4) for being used to arrange the first highway positioned at middle part, the lattice in length and breadth
The direction across bridge two sides of structure beam (4) are separately provided for the first steel case side bar (5) of arrangement railway and for arranging the second highway
The second steel case side bar (6), the lattice girder in length and breadth (4) and the first steel case side bar (5), the second steel case side bar (6) pass through spiral shell
Bolt splicing.
2. wearing the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower according to claim 1, it is characterised in that: described
Lattice girder (4) includes the stringer (4.1) and box crossbeam (4.2) of more square crossings connection, the two neighboring stringer in length and breadth
(4.1) it is additionally provided between cross rib (4.3), the cross rib (4.3) connect with stringer (4.1) square crossing, the lattice girder in length and breadth
(4) top surface is equipped with cross bridge floor board (4.4).
3. wearing the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower according to claim 2, it is characterised in that: described
First steel case side bar (5) is identical with the second steel case side bar (6) structure；The first steel case side bar (5) and the second steel case side bar (6)
It include being provided between the top plate (5.1) and bottom plate (5.2) interior along the top plate (5.1) and bottom plate (5.2) along bridge to arrangement
Web (5.3) and outer web (5.4), the top plate (5.1), endosternum (5.3), bottom plate (5.2), outer web (5.4) end
Successively welding forms box-structure；Be provided between the endosternum (5.3) and outer web (5.4) it is multiple along direction across bridge arrangement
Diaphragm plate (5.5).
4. wearing the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower according to claim 3, it is characterised in that: described
It is provided with tuyere (5.6) on the outside of outer web (5.4), a face side wall of the tuyere (5.6) and the lateral wall of outer web (5.4)
It fits.
5. wearing the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower according to claim 4, it is characterised in that: described
The anchor structure (5.7) for anchoring suspension cable is provided with above outer web (5.4).
6. arranging in bridge tower the cable-stayed bridge for wearing girder according to rail-road same layer unbalance loading described in claim 3 or 4 or 5, feature exists
Reinforcing rib is welded in the medial surface of: the top plate (5.1), bottom plate (5.2), endosternum (5.3), outer web (5.4)
(5.8)。
7. wearing the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower according to claim 5, it is characterised in that: described
Bridge tower (2) is located at the middle part of girder (1), and the bridge tower (2) includes upper king-post strut (2.1), middle king-post (2.2) and lower king-post strut (2.3),
The middle king-post (2.2) is located between upper king-post strut (2.1) and lower king-post strut (2.3), and each middle king-post (2.2) includes two cross
Bridge is to tower bar positioned opposite, and two tower bars are respectively from lattice girder in length and breadth (4) and the first steel case side bar (5), the second steel case
Reserved gap between side bar (6) is passed through to be fixedly connected with lower king-post strut (2.3).
8. wearing the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower according to claim 7, it is characterised in that: described
Lower king-post strut (2.3) includes two direction across bridge tower limb positioned opposite, is provided with lower beam (2.4) between two tower limbs.
9. wearing the cable-stayed bridge of girder in rail-road same layer unbalance loading arrangement bridge tower according to claim 8, it is characterised in that: described
The lateral outer side of lower king-post strut (2.3) is each provided with the bracket beam for carrying the first steel case side bar (5), the second steel case side bar (6)
(2.5)。
10. arranging in bridge tower the cable-stayed bridge for wearing girder according to rail-road same layer unbalance loading described in claim 7 or 8 or 9, feature exists
In: the both lateral sides of the upper king-post strut (2.1) pass through suspension cable (3) respectively and are fixedly connected with corresponding anchor structure (5.7).
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|---|---|---|---|
| CN201820939712.3U CN208501467U (en) | 2018-06-15 | 2018-06-15 | The cable-stayed bridge of girder is worn in a kind of rail-road same layer unbalance loading arrangement bridge tower |
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| CN201820939712.3U CN208501467U (en) | 2018-06-15 | 2018-06-15 | The cable-stayed bridge of girder is worn in a kind of rail-road same layer unbalance loading arrangement bridge tower |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593078A (en) * | 2019-09-06 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Highway-railway parallel double-girder highway-railway combined bridge |
| CN110607740A (en) * | 2018-06-15 | 2019-12-24 | 中铁第四勘察设计院集团有限公司 | Cable-stayed bridge with main beams penetrating through bridge towers arranged on same-layer road and railway in offset load mode |
| CN110983945A (en) * | 2019-12-31 | 2020-04-10 | 中铁二院工程集团有限责任公司 | Invisible supporting structure of main beam cable-stayed bridge with double branch boxes penetrating through bridge tower |
-
2018
- 2018-06-15 CN CN201820939712.3U patent/CN208501467U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607740A (en) * | 2018-06-15 | 2019-12-24 | 中铁第四勘察设计院集团有限公司 | Cable-stayed bridge with main beams penetrating through bridge towers arranged on same-layer road and railway in offset load mode |
| CN110593078A (en) * | 2019-09-06 | 2019-12-20 | 中铁二院工程集团有限责任公司 | Highway-railway parallel double-girder highway-railway combined bridge |
| CN110983945A (en) * | 2019-12-31 | 2020-04-10 | 中铁二院工程集团有限责任公司 | Invisible supporting structure of main beam cable-stayed bridge with double branch boxes penetrating through bridge tower |
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