CN110130199B

CN110130199B - Bridge girder

Info

Publication number: CN110130199B
Application number: CN201910443808.XA
Authority: CN
Inventors: 孟凡超; 曾强; 杨渡军; 杜柏松; 蔡晓艳
Original assignee: Chongqing Jiaotong University
Current assignee: Chongqing Jiaotong University
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2021-02-05
Anticipated expiration: 2039-05-24
Also published as: CN110130199A

Abstract

The application provides a bridge, relates to road bridge construction field. The bridge comprises a first arch body, a second arch body, a third arch body, a bridge body and a pier. The first arch body comprises a first arch top, a first arch foot and a second arch foot, and the first arch top is connected with the first arch foot and the second arch foot. The second arch body comprises a second arch top, a third arch foot and a fourth arch foot, and the second arch top is connected with the third arch foot and the fourth arch foot. The second dome is connected to the first dome. The third arch body comprises a third arch top, a fifth arch foot and a sixth arch foot, and the third arch top is connected with the fifth arch foot and the sixth arch foot. The fifth arch springing connects the third arch springing and the first arch springing, and the sixth arch springing connects the fourth arch springing and the second arch springing. The first arch body faces the bridge body, the second arch body faces the bridge body, and the third arch body faces away from the bridge body. The first arch springing, the third arch crown, the fourth arch springing and the second arch springing are connected with the bridge body in sequence. The pier supports the first arch and the second arch. The bridge realizes no suspender and no tie bar.

Description

Bridge girder

Technical Field

The application relates to the field of road and bridge construction, in particular to a bridge.

Background

The long-span bridges in the related art are all provided with the hanger rods and the tie bars, and the applicant finds that the problems in the related art are: a large-span bridge without a suspender and a tie bar is lacked.

Disclosure of Invention

An object of the embodiments of the present application is to provide a bridge, which aims to improve the problem of the lack of a boom-free and tie-bar-free large-span bridge in the related art.

The embodiment provides a bridge, and the bridge comprises a first arch, a second arch, a third arch, a bridge body and a pier.

The first arch body comprises a first arch top, a first arch foot and a second arch foot, and the first arch top is connected with the first arch foot and the second arch foot. The second arch body comprises a second arch top, a third arch foot and a fourth arch foot, and the second arch top is connected with the third arch foot and the fourth arch foot. The second dome is connected to the first dome. The third arch body comprises a third arch top, a fifth arch foot and a sixth arch foot, and the third arch top is connected with the fifth arch foot and the sixth arch foot. The fifth arch springing connects the third arch springing and the first arch springing, and the sixth arch springing connects the fourth arch springing and the second arch springing. The first arch body faces the bridge body, the second arch body faces the bridge body, and the third arch body faces away from the bridge body. The first arch springing, the third arch crown, the fourth arch springing and the second arch springing are sequentially distributed at intervals in the length direction of the bridge body and are connected with the bridge body. The first arch springing, the second arch springing, the third arch springing and the fourth arch springing are all connected with the bridge pier.

Through setting up first arch body, second arch body and third arch body for first arch body is towards the pontic body, and the second arch body is towards the pontic body, and the third arch body dorsad pontic body, and make the fifth arch foot connect first arch foot and third arch foot, and fourth arch foot and second arch foot are connected to the sixth arch foot, and entire structure has better intensity. The second arch body and the third arch body are arranged, so that the first arch body can be well supported, and the hanger rod and the tie rod can be eliminated.

As an optional technical solution of this embodiment, a line connecting the second dome and the third dome is perpendicular to a plane where the bridge body is located. When the connecting line of the second vault and the third vault is perpendicular to the plane of the bridge body, the whole structure has better stress condition and better bearing capacity and stability.

As an optional technical solution of this embodiment, a connection position of the third arch foot and the bridge body is the first connection position. The third arch foot is provided with a second connecting position, and the arc length from the second connecting position to the first connecting position is equal to the arc length from the second connecting position to the second arch crown. The fifth spring is connected to the third spring at a second connection point. The connection position of the fourth arch springing and the bridge body is a third connection position. The fourth arch foot is provided with a fourth connecting position, and the arc length from the fourth connecting position to the third connecting position is equal to the arc length from the fourth connecting position to the second arch crown. The sixth spring is connected to the fourth spring at a fourth connection position. The fifth arch springing is connected with the third arch springing at the second connecting position, the sixth arch springing is connected with the fourth arch springing at the fourth connecting position, and the second connecting position and the fourth connecting position are both positioned at the middle point position, so that the structure has better stress condition.

As an optional technical solution of this embodiment, a connection position of the first arch springing and the bridge body is a fifth connection position. The first arch foot is provided with a sixth connecting position, and the arc length from the sixth connecting position to the fifth connecting position is equal to the arc length from the sixth connecting position to the first arch crown. The fifth spring is connected to the first spring at a sixth connection position. The connecting position of the second arch springing and the bridge body is a seventh connecting position. The fourth arch foot is provided with an eighth connecting position, and the arc length from the eighth connecting position to the seventh connecting position is equal to the arc length from the eighth connecting position to the first arch crown. The sixth spring is connected to the second spring at an eighth connection point. The fifth arch springing is connected with the first arch springing at a sixth connecting position, the sixth arch springing is connected with the second arch springing at an eighth connecting position, and the sixth connecting position and the eighth connecting position are both positioned at the middle point position, so that the structure has better stress condition.

As an optional technical solution of this embodiment, the bridge body includes a first bridge body, a second bridge body, and a connection beam. A gap is arranged between the first bridge body and the second bridge body, and the connecting beam is connected with the first bridge body and the second bridge body. The connecting beam connects the first arch springing, the third vault, the fourth arch springing and the second arch springing. A gap is formed between the first bridge body and the second bridge body, so that a part of gaps which cannot be used for driving is arranged, and the weight of the bridge is reduced.

As an optional technical solution of this embodiment, the connection beam includes a plurality of first connection beams and a plurality of second connection beams. Many first coupling beams set up along the length direction interval of first pontic body, and first pontic body and second pontic body are connected to every first coupling beam. And the second connecting beam is connected with the first bridge body, the first arch springing and the second bridge body. The other second connecting beam is connected with the first bridge body, the second arch springing and the second bridge body. And the other second connecting beam is connected with the first bridge body, the third vault and the second bridge body. The other second connecting beam is connected with the first bridge body, the third arch springing and the second bridge body. The other second connecting beam is connected with the first bridge body, the fourth arch springing and the second bridge body. Through setting up many first coupling beams for have better joint strength between first pontic body and the second pontic body. Connect first pontic body, hunch foot and second pontic body through the second tie-beam for have better joint strength between hunch foot and first pontic body, the second pontic body.

As an optional solution of this embodiment, the first arch is located between the first bridge body and the second bridge body. The second arch is located between the first bridge body and the second bridge body. The third arch is located between the first bridge body and the second bridge body. The arch body is arranged between the first bridge body and the second bridge body, and the gap which can not be driven can be fully utilized. And when the arch body is arranged between the first bridge body and the second bridge body, the stress conditions of the first bridge body and the second bridge body are better.

As an alternative solution to this embodiment, the third dome is pinned to the bridge body. Vertical restraint is provided through pin connection, so that the stress condition of the structure is better.

As an alternative solution of this embodiment, the absolute value of the curvature of the second dome and the absolute value of the curvature of the third dome are equal. The absolute value of the curvature of the second arch top is equal to the absolute value of the curvature of the third arch top, so that the shape of the second arch body is the same as that of the third arch body, and the stress condition and the stability of the structure are improved.

As an optional solution of this embodiment, the size of the second arch is the same as the size of the third arch. The size of the second arch body is the same as that of the third arch body, and the stress of the structure is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic overall structural diagram of a bridge according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a bridge provided in the embodiment of the present application under a first viewing angle.

Icon: 10-a bridge; 100-a first arch; 110-a first vault; 120-a first arch springing; 130-a second arch; 140-a fifth connection location; 150-a sixth attachment location; 160-eighth connection location; 170-seventh connection location; 200-a second arch; 210-a second vault; 220-third arch springing; 230-a fourth rib; 240 — first connection location; 250-a second attachment location; 260-fourth connection location; 270-a third connection location; 300-a third arch; 310-a third vault; 320-fifth rib; 330-sixth arch springing; 400-a bridge body; 410-a first pontic body; 420-a second bridge body; 500-bridge pier; 600-a connecting beam; 610-a first connecting beam; 620-second connecting beam.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, refer to the orientation or positional relationship as shown in the drawings, or as conventionally placed in use of the product of the application, or as conventionally understood by those skilled in the art, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be considered as limiting the present application.

Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The long-span bridges in the related art are all provided with the hanger rods and the tie bars, and the applicant finds that the problems in the related art are: a large-span bridge without a suspender and a tie bar is lacked. In view of the above situation, the applicant has proposed a bridge which realizes a boom-free and a tie-bar-free bridge based on a great deal of theoretical research and practical operation.

Examples

Referring to fig. 1 and fig. 2 in combination, the present embodiment provides a bridge 10, where the bridge 10 includes a first arch 100, a second arch 200, a third arch 300, a bridge body 400, and a pier 500. The first arch body 100 includes a first arch 110, a first arch foot 120, and a second arch foot 130, wherein the first arch 110 connects the first arch foot 120 and the second arch foot 130. The second dome 200 includes a second dome 210, a third dome 220, and a fourth dome 230, the second dome 210 connecting the third dome 220 and the fourth dome 230. The second dome 210 is connected to the first dome 110. Third dome 300 includes a third dome 310, a fifth dome 320, and a sixth dome 330, with third dome 310 connecting fifth dome 320 and sixth dome 330. The fifth arch 320 connects the third arch 220 with the first arch 120, and the sixth arch 330 connects the fourth arch 230 with the second arch 130. The first arch 100 faces the bridge body 400, the second arch 200 faces the bridge body 400, and the third arch 300 faces away from the bridge body 400. The first arch springing 120, the third arch springing 220, the third arch crown 310, the fourth arch springing 230 and the second arch springing 130 are sequentially distributed at intervals in the length direction of the bridge body 400 and are connected with the bridge body 400. The first arch 100, the second arch 200 and the third arch 300 are in the same plane. The first arch 120, the second arch 130, the third arch 220, and the fourth arch 230 are all connected to the pier 500.

It should be noted that, in the present embodiment, the arch is the same as the arch in the normal sense, but the arch springing means a main arch ring starting from the arch (without the arch) to one end (with the end) of the arch. Taking the first arch 100 in the present embodiment as an example, referring to fig. 2, the first arch 100 includes a first arch 110, a first arch foot 120 and a second arch foot 130, wherein the first arch 110 refers to a position on the first arch 100 where an absolute value of a curvature is the largest, and the first arch foot 120 refers to a main arch from the first arch 110 (without the first arch 110) to a position where the first arch 100 is connected to the left pier 500.

By arranging the first arch 100, the second arch 200 and the third arch 300 such that the first arch 100 faces the bridge body 400, the second arch 200 faces the bridge body 400, the third arch 300 faces away from the bridge body 400, the fifth arch 320 connects the first arch 120 and the third arch 220, and the sixth arch 330 connects the fourth arch 230 and the second arch 130, the whole structure has better strength. The second arch 200 and the third arch 300 are arranged to support the first arch 100 well, so that the hanger bar and the tie bar are eliminated.

In the present embodiment, the absolute value of the curvature of the second dome 210 and the absolute value of the curvature of the third dome 310 are equal. The absolute value of the curvature of the second arch 210 is equal to the absolute value of the curvature of the third arch 310, so that the shape of the second arch 200 is the same as that of the third arch 300, which is beneficial to improving the stress condition and stability of the structure. The dimensions of the second arch 200 are the same as the dimensions of the third arch 300. In other words, in the present embodiment, the second arch 200 and the third arch 300 are the same in shape, structure and size, except that the second arch 200 faces the bridge body 400, and the third arch 300 faces away from the bridge body 400, which provides better stress conditions. In other embodiments, the absolute value of the curvature of the second dome 210 and the absolute value of the curvature of the third dome 310 may not be equal, for example, the absolute value of the curvature of the second dome 210 may be greater than or less than the absolute value of the curvature of the third dome 310. In addition, the size of the second arch 200 and the size of the third arch 300 may also be different, i.e. the shape, structure and size of the second arch 200 and the third arch 300 may be different.

The cross-sectional shapes of the first arch 100, the second arch 200, and the third arch 300 may be arbitrary, for example, a triangular cross-section, a quadrangular cross-section, a circular cross-section, and the like.

In this embodiment, third dome 310 is pinned to bridge body 400. Vertical restraint is provided through pin connection, so that the stress condition of the structure is better. In an alternative embodiment, third dome 310 is hingedly connected to bridge body 400. In another alternative embodiment, third dome 310 and bridge body 400 are fixedly attached, such as welded.

Referring to fig. 2, in the present embodiment, a connection line between the second dome 210 and the third dome 310 is perpendicular to a plane where the bridge body 400 is located. When the line between the second arch 210 and the third arch 310 is perpendicular to the plane of the bridge body 400, the whole structure has better stress condition, better bearing capacity and stability. The term "vertical" herein does not mean that absolute overhang of the components is required, but may be slightly inclined. For example, "perpendicular" merely means that its direction is more perpendicular than "parallel," and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

Referring to fig. 2 again, in the present embodiment, the connection position of the third arch 220 and the bridge body 400 is the first connection position 240. Third arch leg 220 has a second connection location 250 thereon, the arc length of second connection location 250 to first connection location 240 being equal to the arc length of second connection location 250 to second arch 210, i.e., second connection location 250 is the midpoint of the arc length of third arch leg 220 between first connection location 240 to second arch 210. The fifth spring 320 is connected to the third spring 220 at the second connection point 250, for example, the fifth spring 320 is welded to the third spring 220 at the second connection point 250. In an alternative embodiment, the third arch 220 has a first connecting hole at the second connecting position 250, and the fifth arch 320 passes through the first connecting hole. Two hole walls opposite to the first connecting hole and the fifth arch foot 320 are connected through the short beam, namely the short beam is fixedly connected with the first hole wall, and the short beam penetrates through the fifth arch foot 320 to be fixedly connected with the second hole wall.

The connection position of the fourth arch 230 and the bridge body 400 is the third connection position 270. Fourth arch leg 230 has a fourth connection location 260 thereon, the arc length of the fourth connection location 260 to the third connection location 270 being equal to the arc length of the fourth connection location 260 to the second arch 210, i.e., the fourth connection location 260 is the midpoint of the arc length of the fourth arch leg 230 from the third connection location 270 to the second arch 210. The sixth spring leg 330 is connected to the fourth spring leg 230 at the fourth connection point 260, for example, the sixth spring leg 330 is welded to the fourth spring leg 230 at the fourth connection point 260. In an alternative embodiment, the fourth arch 230 has a second connecting hole at the fourth connecting position 260, and the sixth arch 330 passes through the second connecting hole. Two hole walls opposite to the second connecting hole are connected with the sixth arch leg 330 through the short beam, namely the short beam is fixedly connected with the first hole wall, and the short beam penetrates through the sixth arch leg 330 and is fixedly connected with the second hole wall.

The fifth arch 320 is connected to the third arch 220 at the second connection location 250, and the sixth arch 330 is connected to the fourth arch 230 at the fourth connection location 260, wherein the second connection location 250 and the fourth connection location 260 are both located at the midpoint location, so that the structure has better stress conditions. It should be noted that in other embodiments, the second connection position 250 may not be a midpoint position. For example, the arc length of the second connection locations 250 to the first connection locations 240 may be twice the arc length of the second connection locations 250 to the second dome 210. The arc length of the second connection locations 250 to the second dome 210 may also be twice the arc length of the second connection locations 250 to the first connection locations 240. The fourth connection location 260 may not be a midpoint location. For example, the arc length of the fourth connection location 260 to the third connection location 270 may be twice the arc length of the fourth connection location 260 to the second dome 210. The arc length of the fourth connection locations 260 to the second dome 210 may also be twice the arc length of the fourth connection locations 260 to the third connection locations 270.

The connection position of the first arch leg 120 and the bridge body 400 is the fifth connection position 140. The first arch foot 120 has a sixth connection location 150 thereon, and the arc length from the sixth connection location 150 to the fifth connection location 140 is equal to the arc length from the sixth connection location 150 to the first arch 110, i.e., the sixth connection location 150 is the midpoint of the arc length from the fifth connection location 140 to the first arch 110 on the first arch foot 120. The fifth spring 320 is connected to the first spring 120 at the sixth connecting point 150, for example, the fifth spring 320 is welded to the first spring 120 at the sixth connecting point 150. In an alternative embodiment, the first arch foot 120 is opened with a third connecting hole at the sixth connecting position 150, and the fifth arch foot 320 passes through the third connecting hole. Two hole walls opposite to the third connecting hole are connected with the fifth arch foot 320 through the short beam, namely the short beam is fixedly connected with the first hole wall, and the short beam penetrates through the fifth arch foot 320 to be fixedly connected with the second hole wall.

The connection position of the second arch leg 130 and the bridge body 400 is a seventh connection position 170. The fourth arch 230 has an eighth connection location 160 thereon, and the arc length from the eighth connection location 160 to the seventh connection location 170 is equal to the arc length from the eighth connection location 160 to the first arch 110, i.e., the eighth connection location 160 is the midpoint of the arc length from the seventh connection location 170 to the first arch 110 on the second arch 130. The sixth spring leg 330 is connected to the second spring leg 130 at the eighth connection point 160, for example, the sixth spring leg 330 is welded to the second spring leg 130 at the eighth connection point 160. In an alternative embodiment, the second arch foot 130 opens a fourth connecting hole at the eighth connecting position 160, and the sixth arch foot 330 passes through the fourth connecting hole. Two hole walls opposite to the fourth connecting hole are connected with the sixth arch leg 330 through the short beam, namely the short beam is fixedly connected with the first hole wall, and the short beam penetrates through the sixth arch leg 330 and is fixedly connected with the second hole wall.

The fifth arch 320 is connected to the first arch 120 at the sixth connection location 150 and the sixth arch 330 is connected to the second arch 130 at the eighth connection location 160, wherein the sixth connection location 150 and the eighth connection location 160 are both located at the midpoint location, so that the structure has better stress conditions. It should be noted that in other embodiments, the sixth connection position 150 may not be a midpoint position. For example, the arc length of the sixth connection location 150 to the fifth connection location 140 may be twice the arc length of the sixth connection location 150 to the first dome 110. The arc length of the sixth connection location 150 to the first dome 110 may also be twice the arc length of the sixth connection location 150 to the fifth connection location 140. The eighth connection location 160 may not be a midpoint location. For example, the arc length of the eighth connection location 160 to the seventh connection location 170 may be twice the arc length of the eighth connection location 160 to the first dome 110. The arc length of the eighth connection location 160 to the first dome 110 may also be twice the arc length of the eighth connection location 160 to the seventh connection location 170.

Referring to fig. 1 again, the bridge body 400 includes a first bridge body 410, a second bridge body 420 and a connection beam 600. A gap is formed between the first bridge body 410 and the second bridge body 420, and the connection beam 600 connects the first bridge body 410 and the second bridge body 420. The first bridge body 410 and the second bridge body 420 in this embodiment use steel box girders as main bodies, and the steel box girders have better strength and bearing capacity. The coupling beam 600 couples the first arch springing 120, the third arch springing 220, the third dome 310, the fourth arch springing 230 and the second arch springing 130. The first bridge body 410 and the second bridge body 420 have a gap therebetween, so that a portion of the gap that cannot be used for traveling is provided, thereby reducing the weight of the bridge 10.

Referring to fig. 1, the connection beam 600 includes a plurality of first connection beams 610 and a plurality of second connection beams 620. The plurality of first connection beams 610 are disposed at intervals along a length direction of the first bridge body 410, and each first connection beam 610 connects the first bridge body 410 and the second bridge body 420. A second connection beam 620 connects the first bridge body 410, the first arch 120 and the second bridge body 420. Another second connection beam 620 connects the first bridge body 410, the second arch support 130 and the second bridge body 420. Another second connecting beam 620 connects the first bridge body 410, the third dome 310 and the second bridge body 420. Another second connection beam 620 connects the first bridge body 410, the third arch 220 and the second bridge body 420. Another second connection beam 620 connects the first bridge body 410, the fourth arch 230 and the second bridge body 420. By providing the plurality of first connection beams 610, the first bridge body 410 and the second bridge body 420 have a better connection strength therebetween. The first bridge body 410, the arch springing and the second bridge body 420 are connected by the second connecting beam 620, so that the arch springing has better connection strength with the first bridge body 410 and the second bridge body 420.

In the present embodiment, the connection beam 600 includes a first connection beam 610 and a second connection beam 620, wherein the first connection beam 610 connects the first bridge body 410 and the second bridge body 420, and the second connection beam 620 connects the first bridge body 410, the arch foot (or the third dome 310) and the second bridge body 420. In other embodiments, only one connection beam 600 may be used, the length direction of the connection beam 600 connects the first arch foot 120, the third arch foot 220, the third arch foot 310, the fourth arch foot 230 and the second arch foot 130, and the width direction of the connection beam 600 connects the first bridge body 410 and the second bridge body 420, that is, a connection beam 600 with sufficient length and width is used to connect the first bridge body 410, the first arch foot 120, the third arch foot 220, the third arch foot 310, the fourth arch foot 230, the second arch foot 130 and the second bridge body 420.

In the present embodiment, referring to fig. 1, the first arch 100 is located between the first bridge body 410 and the second bridge body 420. The second arch 200 is located between the first bridge body 410 and the second bridge body 420. The third arch 300 is located between the first bridge body 410 and the second bridge body 420. The arch is provided between the first bridge body 410 and the second bridge body 420, and the gap where the vehicle cannot travel can be sufficiently utilized. And when the arch is arranged between the first bridge body 410 and the second bridge body 420, the stress condition of the first bridge body 410 and the second bridge body 420 is better.

In the present embodiment, the first arch 100, the second arch 200, and the third arch 300 are each located between a first bridge body 410 and a second bridge body 420. In an alternative embodiment, two sets of the first arch 100, the second arch 200 and the third arch 300 are provided, one set is provided on the side of the first bridge body 410 away from the second bridge body 420, and the other set is provided on the side of the second bridge body 420 away from the first bridge body 410, so that the bearing capacity of the bridge 10 is improved by the structures of the two sets of the first arch 100, the second arch 200 and the third arch 300. In another alternative embodiment, the first arch 100, the second arch 200 and the third arch 300 are provided with a plurality of sets, the plurality of sets of the first arch 100, the second arch 200 and the third arch 300 are located between the first bridge body 410 and the second bridge body 420, the plurality of sets of the first arch 100, the second arch 200 and the third arch 300 are distributed along the width direction of the first bridge body 410, and the plurality of sets of the first arch 100, the second arch 200 and the third arch 300 are used in combination to improve the bearing capacity of the bridge 10. In another alternative embodiment, the first arch 100, the second arch 200 and the third arch 300 are provided in a plurality of sets, each set of the first arch 100, the second arch 200 and the third arch 300 is located between the first bridge body 410 and the second bridge body 420, and the plurality of sets of the first arch 100, the second arch 200 and the third arch 300 are spaced apart from each other in a length direction extending from the first bridge body 410.

The present embodiment provides a bridge 10, and the bridge 10 includes a first arch 100, a second arch 200, a third arch 300, a bridge body 400, and a pier 500. The first arch body 100 includes a first arch 110, a first arch foot 120, and a second arch foot 130, wherein the first arch 110 connects the first arch foot 120 and the second arch foot 130. The second dome 200 includes a second dome 210, a third dome 220, and a fourth dome 230, the second dome 210 connecting the third dome 220 and the fourth dome 230. The second dome 210 is connected to the first dome 110. Third dome 300 includes a third dome 310, a fifth dome 320, and a sixth dome 330, with third dome 310 connecting fifth dome 320 and sixth dome 330. The fifth arch 320 connects the third arch 220 with the first arch 120, and the sixth arch 330 connects the fourth arch 230 with the second arch 130. The first arch 100 faces the bridge body 400, the second arch 200 faces the bridge body 400, and the third arch 300 faces away from the bridge body 400. The first arch springing 120, the third arch springing 220, the third arch crown 310, the fourth arch springing 230 and the second arch springing 130 are sequentially distributed at intervals in the length direction of the bridge body 400 and are connected with the bridge body 400. The first arch 120, the second arch 130, the third arch 220, and the fourth arch 230 are all connected to the pier 500. By arranging the first arch 100, the second arch 200 and the third arch 300 such that the first arch 100 faces the bridge body 400, the second arch 200 faces the bridge body 400, the third arch 300 faces away from the bridge body 400, the fifth arch 320 connects the first arch 120 and the third arch 220, and the sixth arch 330 connects the fourth arch 230 and the second arch 130, the whole structure has better strength. The second arch 200 and the third arch 300 are arranged to support the first arch 100 well, so that the hanger bar and the tie bar are eliminated.

The bridge 10 provided by the embodiment realizes no suspension rods and no tie rods, and the single span of the bridge 10 adopting the structure can reach 100m, while the single span of a common bridge is about 30m, and the single span of the bridge 10 is greatly improved by adopting the structure of the bridge 10.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bridge, comprising:

a first arch comprising a first dome, a first arch foot, and a second arch foot, the first dome connecting the first arch foot and the second arch foot;

a second arch comprising a second dome, a third dome foot, and a fourth dome foot, the second dome connecting the third dome foot and the fourth dome foot, the second dome and the first dome being connected;

a third arch comprising a third arch, a fifth arch leg and a sixth arch leg, the third arch leg connecting the fifth arch leg and the sixth arch leg, the fifth arch leg connecting the third arch leg and the first arch leg, the sixth arch leg connecting the fourth arch leg and the second arch leg;

the first arch body faces the bridge body, the second arch body faces the bridge body, the third arch body faces away from the bridge body, and the first arch foot, the third arch crown, the fourth arch foot and the second arch foot are sequentially distributed at intervals in the length direction of the bridge body and are connected with the bridge body;

the first arch springing, the second arch springing, the third arch springing and the fourth arch springing are all connected with the bridge pier.

2. The bridge of claim 1, wherein a line connecting the second arch and the third arch is perpendicular to a plane of the bridge body.

3. The bridge according to claim 1, wherein the third leg is connected to the bridge body at a first connection location, the third leg having a second connection location thereon, the second connection location having an arc length to the first connection location equal to the arc length to the second arch at the second connection location, the fifth leg being connected to the third leg at the second connection location; the fourth arch foot with the connection position of bridge body is the third connection position, fourth connection position has on the fourth arch foot, the fourth connection position to the arc length of third connection position with the fourth connection position arrives the arc length of second vault equals, the sixth arch foot is in the fourth connection position with the fourth arch foot is connected.

4. The bridge according to claim 1 or 3, wherein the first arch foot is connected to the bridge body at a fifth connection position, the first arch foot has a sixth connection position thereon, an arc length from the sixth connection position to the fifth connection position is equal to an arc length from the sixth connection position to the first arch, and the fifth arch foot is connected to the first arch foot at the sixth connection position; the connecting position of the second arch springing and the bridge body is a seventh connecting position, the fourth arch springing is provided with an eighth connecting position, the arc length from the eighth connecting position to the seventh connecting position is equal to the arc length from the eighth connecting position to the first arch crown, and the sixth arch springing is connected with the second arch springing at the eighth connecting position.

5. The bridge of claim 1, wherein the bridge body comprises a first bridge body, a second bridge body, and a connecting beam, wherein a gap is provided between the first bridge body and the second bridge body, wherein the connecting beam connects the first bridge body and the second bridge body, and wherein the connecting beam connects the first arch springing, the third arch springing, the fourth arch springing, and the second arch springing.

6. The bridge according to claim 5, wherein the connection beams comprise a plurality of first connection beams and a plurality of second connection beams, the plurality of first connection beams are arranged at intervals along the length direction of the first bridge body, each first connection beam connects the first bridge body and the second bridge body, one second connection beam connects the first bridge body, the first arch foot and the second bridge body, the second connection beam connects the first bridge body, the second arch foot and the second bridge body, another second connection beam connects the first bridge body, the third arch foot and the second bridge body, and another second connection beam connects the first bridge body, the second bridge body, the another second connection beam, The fourth arch springing and the second bridge body.

7. The bridge of claim 5, wherein the first arch is located between the first bridge body and the second bridge body, the second arch is located between the first bridge body and the second bridge body, and the third arch is located between the first bridge body and the second bridge body.

8. The bridge of claim 1, wherein the third arch is pinned to the bridge body.

9. The bridge of claim 1, wherein an absolute value of the curvature of the second arch and an absolute value of the curvature of the third arch are equal.

10. The bridge of claim 9, wherein the second arch is the same size as the third arch.