CN214497218U - Steel pipe arch assembled double-door type support - Google Patents

Steel pipe arch assembled double-door type support Download PDF

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Publication number
CN214497218U
CN214497218U CN202120649565.8U CN202120649565U CN214497218U CN 214497218 U CN214497218 U CN 214497218U CN 202120649565 U CN202120649565 U CN 202120649565U CN 214497218 U CN214497218 U CN 214497218U
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China
Prior art keywords
steel pipe
rod
pipe arch
rods
bearing
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CN202120649565.8U
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Chinese (zh)
Inventor
普银波
陈文�
张德长
李怡霏
柳祖徽
李贻材
宋银水
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China Railway 11th Bureau Group Co Ltd
First Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
China Railway Guangzhou Group Co Ltd
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China Railway 11th Bureau Group Co Ltd
First Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd
China Railway Guangzhou Group Co Ltd
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Application filed by China Railway 11th Bureau Group Co Ltd, First Engineering Co Ltd of China Railway 11th Bureau Group Co Ltd, China Railway Guangzhou Group Co Ltd filed Critical China Railway 11th Bureau Group Co Ltd
Priority to CN202120649565.8U priority Critical patent/CN214497218U/en
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Abstract

The utility model discloses a steel pipe arch assembled double-door type bracket, which relates to the technical field of large-span bridge construction and comprises two bearing beams arranged in parallel and a plurality of upright posts for supporting the bearing beams, wherein both ends of the bearing beams are respectively provided with a supporting and limiting mechanism for supporting a steel pipe arch and a steel wire rope for fixing the steel pipe arch; the supporting and limiting mechanism comprises a saddle, a limiting groove matched with the steel pipe arch is formed in the concave surface of the saddle, two ends of the saddle are bent outwards to form a flanging part, and the bottom surface of the flanging part is connected with the bearing beam through a connecting piece.

Description

Steel pipe arch assembled double-door type support
Technical Field
The utility model relates to a large-span bridge construction technical field, particularly steel pipe encircles assembled double door formula support.
Background
At present, with the high-speed development of economy in China, the status of traffic engineering construction is particularly important; when the road needs to cross sections with complex geological conditions or navigation limit requirements, such as big rivers, lakes, seas, railways, valleys and the like, the steel tube arch bridge plays an important role. The steel pipe arch bridge is a stable bridge with a large span and has less investment compared with a large continuous concrete bridge. However, the difficulty is large during the construction process, and various problems are encountered. At present, a crane is often adopted to lift a steel pipe arch assembly to a preset height in the construction process of a steel pipe arch for assembly, and then the steel pipe arch assembly is additionally arranged on a bridge. However, as the span of the steel tube arch bridge is increased, the height of the steel tube arch is increased, the quality of the steel tube arch is increased, the hoisting weight of the crane is limited, the height of the crane is increased, and various insecurities of the crane are increased; moreover, due to the limitations of the shape and the size of the bridge and the natural environment terrain, the sight of a part of cranes is unclear when the cranes are installed, and the safety risk of the crane operation process is increased; the larger the span of the steel pipe arch bridge is, the higher the height of the steel pipe arch is, the longer the installation and splicing time of the steel pipe arch is, and the larger the hoisting weight is, particularly in the typhoon area, the higher the steel pipe arch splicing installation risk and the construction cost are; at present, the field also adopts modularized welding and then installation, thereby reducing the installation time process. But at the same time the single lift weight is increased a lot, which is also a considerable challenge for cranes. Most of the support structures do not have a general model, basically, the support structures are made of materials which are used wantonly by requirements, and the support structures are mostly constructed by supporting a single steel pipe arch by double steel pipes. The construction space is greatly wasted, materials are wasted, and meanwhile, potential safety hazards are buried. The hoisting safety in the construction process is considered, and the construction space and the construction safety on the bridge floor are ensured. Therefore, it is very important to research a device capable of solving the installation and splicing of the large-span and extra-large steel pipe arch bridge.
In the aspect of economy, the construction method performed at present wastes a large amount of manpower and material resources, and easily causes overlarge cost and resource waste.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a steel pipe encircles assembled double-door support lifts by crane steel pipe to current crane and encircles the assembly splicing technique equipment steel pipe arch form singleness, great engineering sight is obscure and the construction risk is great and need a large amount of manpowers, material resources. Cause a large amount of extravagant scheduling problems of cost and resource, the steel pipe encircles assembled double door formula support that provides, this device has not only considered the construction risk problem of following the direct hoist and mount of ground, and convenient construction installation has moreover ensured the steel pipe and has encircleed the installation progress in the time, and the device has simple structure, and stability is high, and it is more convenient to dismantle, and is easy at field operation, considers the recycle in later stage simultaneously, practices thrift the cost outside the design.
In order to achieve the above purpose, the utility model adopts the technical proposal that: a steel pipe arch assembled double-door type support comprises two bearing beams arranged in parallel and a plurality of stand columns used for supporting the bearing beams, wherein two ends of each bearing beam are respectively provided with a supporting and limiting mechanism used for supporting a steel pipe arch and a steel wire rope used for fixing the steel pipe arch; the supporting and limiting mechanism comprises a saddle, a limiting groove matched with the steel pipe arch is formed in the concave surface of the saddle, two ends of the saddle are bent outwards to form a flanging part, and the bottom surface of the flanging part is connected with the bearing beam through a connecting piece.
The further improvement lies in that: and an anti-collision stop block connected with the bearing beam is arranged beside the saddle.
The further improvement lies in that: the bearing beam is provided with a connecting lug, and one end of the steel wire rope is connected with the corresponding connecting lug.
The further improvement lies in that: every spandrel girder all is connected with two stands, and is located to be connected with first connecting between the coexistence post of same spandrel girder, is located different spandrel girders and is connected with the second connecting between the adjacent coexistence post and be connected with the mechanism.
The further improvement lies in that: the first connecting system mechanism and the second connecting system mechanism are both parallel chord type truss structures.
The further improvement lies in that: the first connecting mechanism comprises a first cross rod, a first vertical rod, two first inclined rods and two second inclined rods; two ends of the first cross rod are respectively connected with the corresponding upright posts; the upper end of each first vertical rod is connected with the corresponding bearing beam, and the lower end of each first vertical rod is connected with the middle part of each first transverse rod; one ends of the two first inclined rods are respectively connected with two ends of the first cross rod, and the other ends of the two first inclined rods are respectively connected with the upper ends of the first vertical rods; one end of each of the two second inclined rods is connected with the two ends of the first cross rod respectively, and the other end of each of the two second inclined rods is connected with the two ends of the bearing beam respectively.
The further improvement lies in that: the second connecting mechanism comprises a second cross rod, a third cross rod and two third inclined rods; both ends of the second cross rod and both ends of the third cross rod are respectively connected with the corresponding upright posts, and the second cross rod is positioned above the third cross rod; one end of each of the two third inclined rods is connected with the two ends of the second cross rod respectively, and the other end of each of the two third inclined rods is connected with the middle of the third cross rod.
The further improvement lies in that: the upright column is formed by connecting a plurality of sections of steel pipes through flanges.
The further improvement lies in that: the lower end of the upright post is connected with the base part through the embedded part.
The further improvement lies in that: the foundation part is a cast-in-place concrete foundation or a bridge internal supporting structure thereof.
The beneficial effects of the utility model reside in that:
the utility model discloses all steel materials are Q235, connect with the connection between four steel-pipe columns, improve the holistic stability of support. Eight crossbeams at the upper end of the upright post are used as bearing beams, and four saddles are placed at four end points on the crossbeams and are used for supporting the vertical load of the steel pipe arch. The steel pipe column and the cross beam are connected through flanges, and a single steel pipe are connected through flanges to form the steel pipe column. The connecting tie rod piece adopts penetration welding, adopts fillet welding seam, and the welding height is 8 mm. After the construction of the bridge girder is completed, the support is directly arranged on the bridge floor and used for supporting the steel pipe arch, so that the steel pipe arch is convenient to install. The support can be integrally assembled on the bridge face, so that the transportation is convenient, and a large amount of transportation cost and the cost of renting a crane are saved. The project cost is saved, and the high-altitude operation risk of the crane is reduced; and is convenient for installation, removal and reuse. The number of the main steel pipe columns is reduced from eight to four, so that the bearing capacity of the bridge deck is greatly reduced, and the purchase cost of project materials is saved. Therefore, the steel pipe arch assembling type double-door support can improve the efficiency of installing the steel pipe arch; the support assembly operating mode, installation and dismantlement all convenient and fast, can use repeatedly, have reduced the input of material, practice thrift the cost outside equipment combined cost and the cable installation design, guarantee to have reduced simultaneously and lift by crane the safety risk.
Drawings
FIG. 1 is a schematic structural view of a steel pipe arch assembled double-door type bracket in the embodiment of the present invention;
FIG. 2 is a schematic structural view of another view angle of the steel pipe arch assembled double-door type bracket in the embodiment of the present invention;
fig. 3 is an enlarged schematic view of a portion of the supporting and limiting mechanism according to an embodiment of the present invention.
Reference numerals:
1-upright column; 11-a steel pipe; 12-a flange; 13-embedded parts;
2-a spandrel girder; 21-an anti-collision stop block;
3-supporting and limiting mechanism; 31-a saddle; 32-a limiting groove; 33-flanging part; 34-a connector;
4-a first connecting mechanism; 41-a first cross bar; 42-a first vertical bar; 43-a first diagonal; 44-a second diagonal;
5-a second connecting mechanism; 51-a second cross bar; 52-third cross bar; 53-third diagonal;
6-steel wire rope; 61-connecting lugs;
7-a base part.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.
The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides a steel pipe arch assembled double-door type support, which includes two parallel-arranged spandrel girders 2 and a plurality of columns 1 for supporting the spandrel girders 2, wherein two ends of the spandrel girders 2 are respectively provided with a supporting and limiting mechanism 3 for supporting a steel pipe arch and a steel wire rope 6 for fixing the steel pipe arch; specifically, the spandrel girder 2 is provided with the engaging lug 61, and the one end of wire rope 6 is connected with the engaging lug 61 that corresponds, places the steel pipe arch on the saddle to together fixed with wire rope, be favorable to resisting extreme weather such as strong wind, improved support stability. The upright column 1 is formed by connecting a plurality of sections of steel pipes 11 through flanges 12, and is convenient to disassemble. The lower end of the upright post 1 is connected with the foundation part 7 through an embedded part 13. The foundation part 7 is a cast-in-place concrete foundation or an internal supporting structure of a bridge thereof.
Referring to fig. 3, the supporting and limiting mechanism 3 comprises a saddle 31, the saddle is arranged below the steel pipe arch main arch splicing joint corresponding to the steel pipe arch main arch, and the saddle is welded with the beam surface, so that the supporting and limiting mechanism is firm and is convenient to mount and dismount. The concave surface of the saddle 31 is provided with a limiting groove 32 matched with the steel pipe arch, two ends of the saddle 31 are bent outwards to form a flanging part 33, and the bottom surface of the flanging part 33 is connected with the bearing beam 2 through a connecting piece 34. Specifically, an anti-collision stop 21 connected with the bearing beam 2 is arranged beside the saddle 31.
Referring to fig. 1 and 2, each bearing beam 2 is connected with two upright posts 1, a first connecting system mechanism 4 is connected between two upright posts 1 located on the same bearing beam 2, and a second connecting system mechanism 5 is connected between two adjacent upright posts 1 located on different bearing beams 2. Specifically, the first connecting mechanism 4 and the second connecting mechanism 5 are both parallel chord type truss structures. In this embodiment, four stands are as the main bearing structure of support system, and the use that has significantly reduced the steel material that uses eight stands to construct than former construction mode.
Referring to fig. 1, the first connecting mechanism 4 includes a first cross bar 41, a first vertical bar 42, two first diagonal bars 43 and two second diagonal bars 44; two ends of the first cross bar 41 are respectively connected with the corresponding upright posts 1; the upper end of the first vertical rod 42 is connected with the corresponding bearing beam 2, and the lower end of the first vertical rod 42 is connected with the middle part of the first cross rod 41; one end of each of the two first inclined rods 43 is connected with the two ends of the first cross rod 41, and the other end of each of the two first inclined rods 43 is connected with the upper end of the first vertical rod 42; one end of each of the two second diagonal rods 44 is connected to the two ends of the first cross rod 41, and the other end of each of the two second diagonal rods 44 is connected to the two ends of the bearing beam 2.
Referring to fig. 2, the second connecting mechanism 5 includes a second cross bar 51, a third cross bar 52 and two third diagonal bars 53; both ends of the second cross bar 51 and both ends of the third cross bar 52 are respectively connected with the corresponding upright posts 1, and the second cross bar 51 is positioned above the third cross bar 52; one end of each of the two third diagonal rods 53 is connected to the two ends of the second cross rod 51, and the other end of each of the two third diagonal rods 53 is connected to the middle of the third cross rod 52.
The utility model discloses steel pipe arch support stand is connected through the flange by the multistage steel pipe, and it is simple easy to dismantle. The labor consumption is greatly reduced, and the construction cost is reduced. The stand is changed into four by eight stands of original construction scheme and has reduced the cost greatly. The parallel chord type truss structure improves the overall stability, reduces materials and can be directly and integrally assembled on the bridge deck. The overall utilization rate of the working face is improved.
In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims (10)

1. The utility model provides a steel pipe encircles assembled double-door support, includes spandrel girder (2) of two parallel arrangement and a plurality of stands (1) that are used for supporting spandrel girder (2), its characterized in that: two ends of the bearing beam (2) are respectively provided with a supporting and limiting mechanism (3) for supporting the steel pipe arch and a steel wire rope (6) for fixing the steel pipe arch; the supporting and limiting mechanism (3) comprises a saddle (31), a limiting groove (32) matched with the steel pipe arch is formed in the concave surface of the saddle (31), two ends of the saddle (31) are bent outwards to form a flanging part (33), and the bottom surface of the flanging part (33) is connected with the bearing beam (2) through a connecting piece (34).
2. The steel pipe arch assembling type double-door type support frame as claimed in claim 1, wherein: and an anti-collision stop block (21) connected with the bearing beam (2) is arranged beside the saddle (31).
3. The steel pipe arch assembling type double-door type support frame as claimed in claim 1, wherein: the bearing beam (2) is provided with a connecting lug (61), and one end of the steel wire rope (6) is connected with the corresponding connecting lug (61).
4. The steel pipe arch assembling type double-door type support frame as claimed in claim 1, wherein: every spandrel girder (2) all is connected with two stands (1), and is located and is connected with first connection between coexistence post (1) of same spandrel girder (2) and is tied mechanism (4), is located different spandrel girders (2) and is connected with second connection between adjacent two stands (1) and be tied mechanism (5).
5. The steel pipe arch assembling type double-door type support frame as claimed in claim 4, wherein: the first connecting system mechanism (4) and the second connecting system mechanism (5) are both parallel chord type truss structures.
6. The steel pipe arch assembling type double-door type support frame as claimed in claim 4, wherein: the first connecting mechanism (4) comprises a first cross rod (41), a first vertical rod (42), two first inclined rods (43) and two second inclined rods (44); two ends of the first cross rod (41) are respectively connected with the corresponding upright posts (1); the upper end of each first vertical rod (42) is connected with the corresponding bearing beam (2), and the lower end of each first vertical rod (42) is connected with the middle of the corresponding first cross rod (41); one ends of the two first inclined rods (43) are respectively connected with two ends of the first cross rod (41), and the other ends of the two first inclined rods (43) are respectively connected with the upper ends of the first vertical rods (42); one end of each of the two second inclined rods (44) is connected with the two ends of the first cross rod (41), and the other end of each of the two second inclined rods (44) is connected with the two ends of the bearing beam (2).
7. The steel pipe arch assembling type double-door type support frame as claimed in claim 4, wherein: the second connecting mechanism (5) comprises a second cross bar (51), a third cross bar (52) and two third inclined bars (53); both ends of the second cross rod (51) and both ends of the third cross rod (52) are respectively connected with the corresponding upright posts (1), and the second cross rod (51) is positioned above the third cross rod (52); one end of each of the two third inclined rods (53) is connected with the two ends of the second cross rod (51), and the other end of each of the two third inclined rods (53) is connected with the middle of the third cross rod (52).
8. The steel pipe arch assembling type double-door type support frame as claimed in claim 1, wherein: the upright post (1) is formed by connecting a plurality of sections of steel pipes (11) through flanges (12).
9. The steel pipe arch assembling type double-door type support frame as claimed in claim 1, wherein: the lower end of the upright post (1) is connected with the base part (7) through an embedded part (13).
10. The steel pipe arch assembled double-door type support of claim 9, wherein: the foundation part (7) is a cast-in-place concrete foundation or a bridge internal supporting structure thereof.
CN202120649565.8U 2021-03-30 2021-03-30 Steel pipe arch assembled double-door type support Active CN214497218U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120649565.8U CN214497218U (en) 2021-03-30 2021-03-30 Steel pipe arch assembled double-door type support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120649565.8U CN214497218U (en) 2021-03-30 2021-03-30 Steel pipe arch assembled double-door type support

Publications (1)

Publication Number Publication Date
CN214497218U true CN214497218U (en) 2021-10-26

Family

ID=78201309

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120649565.8U Active CN214497218U (en) 2021-03-30 2021-03-30 Steel pipe arch assembled double-door type support

Country Status (1)

Country Link
CN (1) CN214497218U (en)

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