CN206495133U - Long-Span Concrete Filled Steel Tubular Arch Bridges structure - Google Patents

Long-Span Concrete Filled Steel Tubular Arch Bridges structure Download PDF

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Publication number
CN206495133U
CN206495133U CN201720172949.9U CN201720172949U CN206495133U CN 206495133 U CN206495133 U CN 206495133U CN 201720172949 U CN201720172949 U CN 201720172949U CN 206495133 U CN206495133 U CN 206495133U
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China
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arch
limb
rib
main
ring
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韦有波
王新泽
付彦生
薛喜平
鄢勇
郭占元
陈国胜
韩宝煜
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China Railway 18th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 18th Bureau Group Co Ltd
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China Railway 18th Bureau Group Co Ltd
Second Engineering Co Ltd of China Railway 18th Bureau Group Co Ltd
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Abstract

The utility model discloses a kind of Long-Span Concrete Filled Steel Tubular Arch Bridges structure, including main arch ring, it is arranged on the spandrel column on main arch ring, the arch upper beam supported by spandrel column, described main arch ring is provided with the left limb of arch rib, the right limb of arch rib, spacing between the left limb of arch rib and the right limb of arch rib is tapered into from arch springing to vault, and it is in X-shaped to make main arch ring plane projection;It is connected between the left limb of arch rib, the right limb of arch rib by stull, diagonal brace.The left limb of arch rib of the present utility model, the right limb bottom of arch rib are roomy, main arch ring is provided stronger support force for spandrel column;Stull, diagonal brace are provided between the left limb of arch rib, the right limb of arch rib, the stability of main arch ring connection is can further improve using stull diagonal brace, the rigidity required for meeting passenger dedicated railway line bridge is big and deforms the requirement of small performance indications, improves the security of bridge.

Description

Long-Span Concrete Filled Steel Tubular Arch Bridges structure
Technical field
The utility model is related to bridge structure, specifically a kind of Long-Span Concrete Filled Steel Tubular Arch Bridges structure.
Background technology
Passenger dedicated railway line bridge is higher to rigidity requirement, and in each long span bridge type, cable-stayed bridge and suspension bridge are due to its own Rigidity is difficult to be lifted, and temperature deformation is big, more difficult to meet the related request that train is runed at a high speed.
Arch bridge is as a kind of conventional bridge type, not only with larger span ability and integral rigidity, and can be well It is combined with Valley, particularly CFST Arch Bridge, with conducting oneself with dignity, bearing capacity big compared with small, rigidity is strong, become by temperature Change many advantages, such as influenceing small, low cost and small late maintaining maintenance load.
At present, long-span arch bridge often has reinforced concrete arch bridge, CFST Arch Bridge or steel case, steel truss arched bridge.Nearly ten Several years, due to domestic steel manufacturing technology high speed development, highway, municipal large-span arch bridge using CFST Arch Bridge or steel case, Steel truss arched bridge is in the majority, but for the high railway bridge of rigidity requirement particularly High-speed Railway Bridges, CFST Arch Bridge should With less, therefore a kind of CFST Arch Bridge structure structure type is provided, meet passenger dedicated railway line bridge and emphasize that structure is firm Degree is big and deforms small index request, has to application of the CFST Arch Bridge in passenger dedicated railway line bridge extremely important Meaning.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Long-Span Concrete Filled Steel Tubular Arch Bridges structure, the arch bridge Structure disclosure satisfy that passenger dedicated railway line bridge emphasizes the big requirement small with deformation of the rigidity of structure, adapt to wanting for train high speed operation Ask.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that:
A kind of Long-Span Concrete Filled Steel Tubular Arch Bridges structure, including main arch ring, are arranged on the spandrel column on main arch ring, pass through The arch upper beam of spandrel column support, described main arch ring is provided with the left limb of arch rib, the right limb of arch rib, between the left limb of arch rib and the right limb of arch rib Spacing tapered into from arch springing to vault, make main arch ring plane projection be in X-shaped;Pass through horizontal stroke between the left limb of arch rib, the right limb of arch rib Support, diagonal brace are connected.
Using the utility model of above-mentioned technical proposal, compared with prior art, its advantage is:
The right limb bottom of the left limb of arch rib, arch rib is roomy, main arch ring is provided stronger support force for spandrel column;Arch rib is left Stull, diagonal brace are provided between the right limb of limb, arch rib, the stability of main arch ring connection is can further improve using stull diagonal brace, is met Rigidity required for passenger dedicated railway line bridge is big and deforms the requirement of small performance indications, improves the security of bridge.
Further, the utility model optimal technical scheme is:
Described stull is arranged at intervals along main arch ring direction, and the two ends of diagonal brace are connected with the center of stull respectively, stull It is in " work " font after being connected with diagonal brace.Said structure, makes the connection and supporting role of the left limb of arch rib and the right limb of arch rib more stable.
The left limb of described arch rib and the right limb of arch rib are equipped with top boom, lower boom, and top boom, the bottom of lower boom pass through abdomen Plate connection, top boom, the top of lower boom are connected by web member.By above-mentioned setting, using web and web member to winding up Bar, lower boom are connected so that connect more stable between the left limb of arch rib and the right limb of arch rib, stress is more balanced.
Described top boom, lower boom, which are equipped between 2 main arch pipes, 2 main arch pipes, is provided with batten plate, the two ends of batten plate with Main arch pipe is connected.By setting batten plate, the stability of main arch pipe connection is further improved, the harmony of stress is improved.
Described main arch ring is bay structural, is welded to connect between section and section, master of the main arch ring after welding is closed up Arch tube, batten plate, pour into C50 slightly expanded concretes in web.Set, had using constructing and installing, in addition, by filling by section Enter concrete, can further improve main arch ring stability.
The two ends of described arch bridge are basic provided with skewback, and border pier, border pier supporting arch upper beam are set on the basis of skewback;Arch The left limb of rib, the arch springing of the right limb of arch rib and skewback basis are connected.
Brief description of the drawings
Fig. 1 is the profile of the utility model embodiment;
Fig. 2 is the structural representation of 1/2 arch rib;
Fig. 3 is the structural representation of 1/4 arch rib;
Fig. 4 is Fig. 2 A-A to sectional view;
Fig. 5 is Fig. 2 B-B direction profile;
Description of reference numerals:1- encircles upper beam;2- border piers;3- skewbacks basis;4- spandrel columns;5- arch ribs are left Limb;The right limb of 6- arch ribs;7- stulls;8- diagonal braces;9- top booms;10- lower booms;11- webs;12- web members;13- master Arch tube;14- batten plates.
Embodiment
With reference to embodiment, the utility model is further illustrated.
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of Long-Span Concrete Filled Steel Tubular Arch Bridges structure, by main arch ring, is arranged on main arch ring Spandrel column 4, the arch upper beam supported by spandrel column 4 constitutes;Main arch ring is provided with the left limb 5 of arch rib, the right limb 6 of arch rib, arch rib Spacing between the left right limb 6 of limb 5 and arch rib is tapered into from arch springing to vault, and it is in X-shaped to make main arch ring plane projection;Arch rib is left It is connected between the right limb 6 of limb 5, arch rib by stull 7, diagonal brace 8.The two ends of arch bridge are provided with skewback basis 3, skewback basis 3 Border pier 2, the supporting arch upper beam of border pier 2 are set;The left limb 5 of arch rib, the arch springing of the right limb 6 of arch rib and skewback basis 3 are connected.
The left limb 5 of arch rib and the right limb 6 of arch rib are equipped with top boom 9, lower boom 10, and top boom 9, the bottom of lower boom 10 pass through Web 11 is connected, the top of top boom 9, lower boom 10 is connected by web member 12.The left limb 5 of arch rib and the right limb 6 of arch rib are distinguished It is welded to form by top boom 9, lower boom 10, web 11, web member 12, respectively horizontal 7.5 degree of introversion.By above-mentioned setting, utilize Web 11 and web member 12 are connected to top boom 9, lower boom 10 so that connect more steady between the left limb 5 of arch rib and the right limb 6 of arch rib Fixed, stress is more balanced.
Referring to Fig. 4, stull 7 is arranged at intervals along main arch ring direction, and the center of the two ends of diagonal brace 8 respectively with stull 7 is connected, Stull 7 is in " work " font after being connected with diagonal brace 8.Said structure, makes the connection and supporting role of the left limb 5 of arch rib and the right limb 6 of arch rib It is more stable.
Referring to Fig. 4, Fig. 5, top boom 9, lower boom 10 are provided with batten plate between being equipped with 2 main arch pipes, 13,2 main arch pipes 13 14, the two ends of batten plate 14 are connected with main arch pipe 13.By setting batten plate 14, the stability of the connection of main arch pipe 13 is further improved, Improve the harmony of stress.Main arch ring is bay structural, is welded to connect between section and section, and main arch ring is after welding is closed up Main arch pipe 13, batten plate 14, pour into C50 slightly expanded concretes in web 11.Set, had using constructing and installing, separately by section Outside, by penetration concrete, main arch ring stability can further be improved.
The present embodiment be applied to bridge build design parameter it is as follows, main bridge use 1-240m across deck type steel tube concrete Centre-to-centre spacing 23.192m at native arch bridge, arch toe, vault arch rib centre-to-centre spacing 8.71m, main arch arch in its clinoplain is stretched wire Line, arch axis coefficient m=2.2, ratio of rise to span about 1/4.364;Above-mentioned pontic, handsome in appearance with rational in infrastructure, stress power transmission is equal Weighing apparatus, the characteristics of structure integral rigidity is big, deformation is small.
Embodiment of the present utility model, but protection not limited to this of the present utility model are the foregoing is only, it is any Those skilled in the art the thinkable change being equal with the technical program technical characteristic or replacement, all cover this Within the protection domain of utility model.

Claims (6)

1. a kind of Long-Span Concrete Filled Steel Tubular Arch Bridges structure, including main arch ring, are arranged on the spandrel column on main arch ring, pass through arch The arch upper beam of upper pillar stand support, it is characterised in that:Described main arch ring is provided with the left limb of arch rib, the right limb of arch rib, the left limb of arch rib and arch Spacing between the right limb of rib is tapered into from arch springing to vault, and it is in X-shaped to make main arch ring plane projection;The left limb of arch rib, the right limb of arch rib Between be connected by stull, diagonal brace.
2. Long-Span Concrete Filled Steel Tubular Arch Bridges structure according to claim 1, it is characterised in that:Described stull is along main arch Enclose direction to be arranged at intervals, the two ends of diagonal brace be connecteds with the center of stull respectively, stull be connected with diagonal brace after in " work " font.
3. Long-Span Concrete Filled Steel Tubular Arch Bridges structure according to claim 1, it is characterised in that:The left limb of described arch rib and The right limb of arch rib is equipped with top boom, lower boom, top boom, the bottom of lower boom are connected by web, top boom, lower boom it is upper Portion is connected by web member.
4. Long-Span Concrete Filled Steel Tubular Arch Bridges structure according to claim 3, it is characterised in that:Described top boom, under Chord member, which is equipped between 2 main arch pipes, 2 main arch pipes, is provided with batten plate, and the two ends of batten plate are connected with main arch pipe.
5. Long-Span Concrete Filled Steel Tubular Arch Bridges structure according to claim 4, it is characterised in that:Described main arch ring is section Segment structure, is welded to connect between section and section, and main arch ring is filled in the main arch pipe after welding is closed up, batten plate, the cavity of web Enter C50 slightly expanded concretes.
6. Long-Span Concrete Filled Steel Tubular Arch Bridges structure according to claim 1, it is characterised in that:The two ends of described arch bridge Provided with skewback basis, border pier, border pier supporting arch upper beam are set on the basis of skewback;The left limb of arch rib, the arch springing of the right limb of arch rib with Skewback basis is connected.
CN201720172949.9U 2017-02-25 2017-02-25 Long-Span Concrete Filled Steel Tubular Arch Bridges structure Active CN206495133U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106758748A (en) * 2017-02-25 2017-05-31 中铁十八局集团第二工程有限公司 Long-Span Concrete Filled Steel Tubular Arch Bridges structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106758748A (en) * 2017-02-25 2017-05-31 中铁十八局集团第二工程有限公司 Long-Span Concrete Filled Steel Tubular Arch Bridges structure

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