CN117211148A - Bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure - Google Patents
Bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure Download PDFInfo
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- CN117211148A CN117211148A CN202310068216.0A CN202310068216A CN117211148A CN 117211148 A CN117211148 A CN 117211148A CN 202310068216 A CN202310068216 A CN 202310068216A CN 117211148 A CN117211148 A CN 117211148A
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Abstract
The invention provides a bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure, which comprises a first girder, a second girder, arch ribs, tie bars and suspenders, wherein the upper surfaces of the first girder and the second girder are traffic channels, the first girder and the second girder are spaced to bypass obstacles, and two ends of the first girder and two ends of the second girder are respectively and crosswise solidified; the two ends of the arch rib and the two ends of the tie bar are respectively fixed at two merging positions of the first girder and the second girder; the first main beam, the second main beam and the arch rib are connected through a plurality of suspenders. The invention can coordinate with specific surrounding environment without greatly modifying the environment.
Description
Technical Field
The invention belongs to the field of bridges, and particularly relates to a bridge structure with bridge deck separated and combined V-shaped lower bearing arches.
Background
The current common structural types of bridge structures comprise simply supported beams, continuous beams, rigid frame bridges, arch bridges, cable-stayed bridges, suspension bridges and the like, and along with domestic economic development, the requirements of infrastructure construction on landscapes are higher and higher.
In the prior art, the arch bridge structure provided by the figure 1 is composed of a cross beam, an arch rib, a suspender, a longitudinal beam and a wind brace, and the arch bridge structure shown by the figure 2 is composed of the longitudinal beam, the arch rib, the suspender and the cross beam, and belongs to a beam-arch combined system structure.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure which does not need to greatly modify the environment and can be coordinated with a specific surrounding environment.
The invention provides a bridge structure with a combined V-shaped lower arch bearing for bridge deck separation, which combines the actual situation of topography, comprises a first girder, a second girder, arch ribs, tie bars and suspenders,
the upper surfaces of the first main beam and the second main beam are traffic channels, the first main beam and the second main beam are spaced to bypass the barrier, and two ends of the first main beam and two ends of the second main beam are respectively and crosswise solidified;
the two ends of the arch rib and the two ends of the tie bar are respectively fixed at two merging positions of the first girder and the second girder;
the first main beam, the second main beam and the arch rib are connected through a plurality of suspenders.
Further preferably, the cross sections of the first main beam and the second main beam are equal or variable.
Further preferably, the first main beam and the second main beam are single beams, double-spliced beams or multi-spliced beams.
Further preferably, the cross section of the rib is constant or variable.
Further preferably, the rib is a single beam, a double-spliced beam or a multi-spliced beam.
Further preferably, the arch rib is internally provided with a duct or a slot, the top of the suspender is arranged in the duct or the slot of the arch rib, and the bottom is fixed in the first main beam and the second main beam.
Further preferably, the bottom of the boom is anchored in the first and second main beams by an anchor.
It is further preferred that both ends of the tie rod are anchored at the bridge spans at both ends.
Further preferably, one of the ribs is provided at an intermediate position between the first main beam and the second main beam.
Further preferably, two arch ribs are provided, a first arch rib of the arch rib close to the first main beam is defined, the arch rib close to the second main beam is a second arch rib, and suspension rods are arranged between the first main beam and the first arch rib, between the second main beam and the second arch rib, between the first main beam and the second arch rib and between the second main beam and the first main beam.
Compared with the prior art, the invention has the following beneficial effects:
1. the bridge structure mainly can effectively utilize specific terrains, improve landscape effect and provide a novel bridge structure thought.
2. The bridge structure provided by the invention is provided with the first girder and the second girder, the first girder and the second girder are separated from each other and only cross at two ends, a nonlinear bridge deck is provided, the middle separation position can bypass without damaging the original built structure or ancient tree, and the bridge structure can adapt to the environment.
Drawings
Fig. 1 is a schematic view of a conventional arch bridge structure, wherein (a) and (b) are plan views of different view angles, (c) are elevation views, and (d) and (e) are cross-sectional views of different view angles.
Fig. 2 is a schematic view of another conventional arch bridge structure, in which (a) is a plan view, (b) is an elevation view, and (c) is a cross-sectional view.
Fig. 3 is a schematic structural view of a beam-arch combined V-shaped lower arch-supporting bridge structure according to an embodiment of the present invention, in which (a) is a top view, (b) is an elevation view, and (c) is a cross-sectional view.
In fig. 3, 1-first girder, 2-arch rib, 3-boom, 4-tie bar, 5-second girder.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Introduction of terms:
bridge structure: the building is used for crossing obstacles such as rivers and lakes and allowing people and vehicles to pass through.
Beam-arch combination: the beam is a structural part which directly bears loads such as a man and a vehicle, and the arch is a structural part which assists the beam structure to bear the loads.
Lower arch bearing type: the lower arch bearing is characterized in that a main beam is positioned below an arch rib and is hung on the arch rib through a hanging rod.
Example 1
Referring to fig. 3, the present invention provides a bridge deck separated beam-arch combined V-shaped lower arch-supporting bridge structure, which is a beam-arch combined structure, and comprises a first girder 1, an arch rib 2, a boom 3, a tie bar 4 and a second girder 5, wherein the upper surfaces of the first girder 1 and the second girder 5 are traffic channels.
The first main beam 1 and the second main beam 5 are spaced, and two ends of the first main beam 1 and two ends of the second main beam 5 are respectively and crosswise solidified. Compared with a one-piece girder in the prior art, the invention is provided with two girders, the first girder 1 and the second girder 5 are spaced apart and are crossed at two ends, and are nonlinear bridge decks, and the spaced positions between the first girder 1 and the second girder 5 can accommodate obstacles (such as ancient trees, hills, built structures and the like) which are higher than the girders and are inconvenient to dismantle in a girder arch planning area, so that the two girders can be coordinated with specific surrounding environments, and the applicability is stronger.
The two ends of the arch rib 2 and the two ends of the tie bar 4 are respectively fixed at two merging positions of the first girder 1 and the second girder 5.
The bridge comprises a first girder 1, a second girder 5, a bridge pier, a support, a girder and an arch rib 2, wherein the bridge pier is arranged below the cross joint position of the two ends of the first girder 1 and the two ends of the second girder 5 and is used for connecting the girders, the girders and the arch rib 2 are fixedly connected into a whole at the two ends of the bridge span, the two ends of a tie bar 4 are respectively anchored at the bridge spans of the two ends through anchors (the straight line distance between the junction positions of the two girders is the bridge span, the bridge span is short, the lower part of the junction position of the two girders is supported by the bridge pier), the top of a suspender 3 is arranged in a pore channel or a groove reserved for the arch rib 2 within the range of 1/5-4/5 span from the support, the bottom of the suspender is anchored in the first girder 1 and the second girder 5 through the anchors, and the rest of the suspender is exposed.
In the system, the first main beam 1 and the second main beam 5 directly bear external load, the hanging rods 3 arranged along the first main beam 1 and the second main beam 5 provide partial support for the first main beam 1 and the second main beam 5, the hanging rods 3 transmit the load to the arch ribs 2, and the horizontal load at two ends of the bridge span is tensioned and balanced by the tie bars 4, so that the system achieves an integral self-balancing state (only a support capable of bearing vertical force is needed to transmit the load to a lower structure finally).
Example 2
The invention provides a bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure which comprises a first girder 1, arch ribs 2, a suspender 3, a tie rod 4 and a second girder 5, wherein the upper surfaces of the first girder 1 and the second girder 5 are traffic channels.
The first main beam 1 and the second main beam 5 are spaced, and two ends of the first main beam 1 and two ends of the second main beam 5 are respectively and crosswise solidified. The two ends of the arch rib 2 and the two ends of the tie bar 4 are respectively fixed at two merging positions of the first girder 1 and the second girder 5. The first main beam 1, the second main beam 5 and the arch rib 2 are connected through a plurality of hanging rods 3.
In this embodiment, the first main beam 1 goes from east to west, and the second main beam 5 can go from west to east without interfering with each other.
In this embodiment, the first main beam 1 and the second main beam 5 are both arc-shaped.
In this embodiment, the first main beam 1 and the second main beam 5 are of equal or variable cross section.
In this embodiment, the first main beam 1 and the second main beam 5 are formed by a single beam, a double-spliced beam or a multi-spliced beam.
The bridge comprises a first girder 1, a second girder 5, a bridge pier, a support, a girder and a brace rod, wherein the bridge pier is arranged below the cross joint position of the two ends of the first girder 1 and the two ends of the second girder 5, the support is used for connecting the girders, the girders and the arch ribs 2 are fixedly connected into a whole at the two ends of the bridge span, the two ends of the brace rod 4 are respectively anchored at the bridge spans of the two ends through anchors (the straight line distance between the junction positions of the two girders is the bridge span, the bridge span is short, the lower part of the junction position of the girders is supported by the bridge pier), the top of the hanging rod 3 is arranged in a pore channel or a groove reserved for the arch ribs 2 within the span range of 1/5-4/5 from the support, the bottom of the hanging rod is anchored in the first girder 1 and the second girder 5 through the anchors, and the rest part of the hanging rod is exposed.
In the system, the first main beam 1 and the second main beam 5 directly bear external load, the suspension rods 3 arranged along the first main beam 1 and the second main beam 5 provide partial support for the first main beam 1 and the second main beam 5, the suspension rods 3 transmit the load to the arch ribs 2, and the horizontal loads at the two ends of the bridge span are tensioned and balanced by the tie bars 4, so that the system achieves an integral self-balancing state (only a support capable of bearing vertical force is needed to transmit the load to a lower structure finally).
Example 3
The invention provides a bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure which comprises a first girder 1, arch ribs 2, a suspender 3, a tie rod 4 and a second girder 5, wherein the upper surfaces of the first girder 1 and the second girder 5 are traffic channels.
The first main beam 1 and the second main beam 5 are spaced, and two ends of the first main beam 1 and two ends of the second main beam 5 are respectively and crossly fixed. The two ends of the arch rib 2 and the two ends of the tie bar 4 are respectively fixed at two merging positions of the first girder 1 and the second girder 5. The first main beam 1 and the second main beam 5 are connected with the arch rib 2 through a plurality of hanging rods 3.
In this embodiment, the arch rib 2 is of equal section or variable section, and is formed by a single beam, a double-spliced beam or a multi-spliced beam.
In this embodiment, a rib 2 is provided, said rib 2 being arranged in an intermediate position between the first girder 1 and the second girder 5.
Bridge piers with supporting function are arranged below the cross-joint positions of the two ends of the first girder 1 and the two ends of the second girder 5, supports for connecting the girders are arranged on the bridge piers, the girders and the arch ribs 2 are fixedly connected into a whole at the two ends of the bridge span, the two ends of the tie bar 4 are respectively anchored at the bridge spans of the two ends through anchors (the straight line distance between the junction positions of the two girders is the bridge span, the bridge span is short, the lower part of the junction position of the girders is supported by the bridge piers), the top of the suspender 3 is arranged in a pore channel or a groove reserved in the arch ribs 2 within the span range from 1/5 to 4/5, the bottom of the suspender is anchored in the first girder 1 and the second girder 5 through anchors, and the rest of the suspender is exposed.
In the system, the first main beam 1 and the second main beam 5 directly bear external load, the suspension rods 3 arranged along the first main beam 1 and the second main beam 5 provide partial support for the first main beam 1 and the second main beam 5, the suspension rods 3 transmit the load to the arch ribs 2, and the horizontal loads at the two ends of the bridge span are tensioned and balanced by the tie bars 4, so that the system achieves an integral self-balancing state (only a support capable of bearing vertical force is needed to transmit the load to a lower structure finally).
Example 4
The invention provides a bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure which comprises a first girder 1, arch ribs 2, a suspender 3, a tie rod 4 and a second girder 5, wherein the upper surfaces of the first girder 1 and the second girder 5 are traffic channels.
The first main beam 1 and the second main beam 5 are spaced, and two ends of the first main beam 1 and two ends of the second main beam 5 are respectively and crosswise solidified. The two ends of the arch rib 2 and the two ends of the tie bar 4 are respectively fixed at two merging positions of the first girder 1 and the second girder 5. The first main beam 1, the second main beam 5 and the arch rib 2 are connected through a plurality of hanging rods 3.
In this embodiment, two arch ribs 2 are provided, and the positional relationship between the two arch ribs 2 is not particularly required, and the two arch ribs can be symmetrically arranged or asymmetrically arranged, so that the whole structure can maintain anti-overturning stability.
Two arch ribs 2 are defined to be a first arch rib and a second arch rib, a first arch rib is arranged close to the first girder 1, a second arch rib is arranged close to the second girder 5, a plurality of hanging rods 3 are arranged between the first girder 1 and the first arch rib, the hanging rods 3 are distributed along the length direction of the first girder 1 and the first arch rib, a plurality of hanging rods 3 are also arranged between the second girder 5 and the second arch rib along the length direction, and a plurality of hanging rods 3 are also arranged between the first girder 1 and the second arch rib and between the second girder 5 and the first arch rib. The arrangement of the suspension rod can effectively improve the stability of the first main beam 1 and the second main beam 5.
The bridge comprises a first girder 1, a second girder 5, a bridge pier, a support, a girder and arch ribs 2, wherein the bridge pier is arranged below the cross joint position of the two ends of the first girder 1 and the two ends of the second girder 5, the support is used for connecting the girders, the girders and the arch ribs 2 are integrally fixedly connected at the two ends of the bridge span, the two ends of a tie bar 4 are respectively anchored at the bridge spans of the two ends through anchors (the straight line distance between the converging positions of the two girders 1 is the bridge span, the bridge span is short, the lower part of the converging position of the girders 1 is supported by the bridge pier), the top of a suspender 3 is arranged in a pore channel or a groove reserved in the arch ribs 2 within the span range from 1/5 to 4/5, and the bottom of the suspender is anchored in the first girder 1 and the second girder 5 through the anchors, and the rest part of the suspender is exposed.
In the system, the first main beam 1 and the second main beam 5 directly bear external load, the suspension rods 3 arranged along the first main beam 1 and the second main beam 5 provide partial support for the first main beam 1 and the second main beam 5, the suspension rods 3 transmit the load to the arch ribs 2, and the horizontal loads at the two ends of the bridge span are tensioned and balanced by the tie bars 4, so that the system achieves an integral self-balancing state (only a support capable of bearing vertical force is needed to transmit the load to a lower structure finally).
Example 5
The construction steps of the bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure provided by the embodiment include:
firstly, a construction platform is erected, temporary trestle, temporary piers, steel cofferdams and the like are constructed, and the first girder 1, the second girder 5 and the arch rib 2 can synchronously work if prefabricated in a factory.
And secondly, constructing a bridge foundation and a lower structure.
Thirdly, constructing a first girder 1 and a second girder 5, and hoisting and assembling section by section through transportation until the first girder 1 and the second girder 5 are assembled if the first girder 1 and the second girder 5 are of prefabricated structures.
And fourthly, constructing the arch rib 2 by adopting a temporary pier and a universal rod piece, and hoisting the arch rib 2 section by section for assembly closure and correction if the arch rib 2 is of a prefabricated structure.
Fifthly, synchronously tensioning the tie rods 4 and all the suspenders 3 at one time by using an intelligent synchronous tensioning system.
And sixthly, removing the temporary piers in sequence, and completing the construction of auxiliary facilities and the bridge forming load test to pass.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure is characterized by comprising a first main beam (1), a second main beam (5), arch ribs (2), a tie rod (4) and a suspender (3),
the upper surfaces of the first main beam (1) and the second main beam (5) are traffic channels, an interval between the first main beam (1) and the second main beam (5) is used for bypassing an obstacle, and two ends of the first main beam (1) and two ends of the second main beam (5) are respectively and crosswise solidified;
the two ends of the arch rib (2) and the two ends of the tie bar (4) are respectively fixed at two merging positions of the first girder (1) and the second girder (5);
the first main beam (1), the second main beam (5) and the arch rib (2) are connected through a plurality of hanging rods (3).
2. The bridge deck-separated beam-arch combined V-shaped lower arch-bearing bridge structure according to claim 1, characterized in that the cross section of the first girder (1) and the second girder (5) is equal or variable.
3. The bridge deck-separated beam-arch combined V-shaped lower arch-bearing bridge structure according to claim 1, characterized in that the first main girder (1) and the second main girder (5) are single girder, double-spliced girder or multi-spliced girder.
4. The bridge deck-separated beam-arch combined V-shaped lower arch-supporting bridge structure according to claim 1, wherein the cross section of the arch rib (2) is equal or variable.
5. The bridge deck-separated beam-arch combined V-shaped underarch bridge structure according to claim 1, wherein the arch rib (2) is a single beam, a double-spliced beam or a multi-spliced beam.
6. The bridge deck separated beam-arch combined V-shaped lower arch-supporting bridge structure according to claim 1, wherein the arch rib (2) is internally provided with a hole or a slot, the top of the suspender (3) is arranged in the hole or the slot of the arch rib (2), and the bottom is fixed in the first main beam (1) and the second main beam (5).
7. A deck-separated beam-arch combined V-shaped lower arch-bearing bridge structure according to claim 4, characterized in that the bottom of the boom (3) is anchored in the first girder (1) and the second girder (5) by means of anchors.
8. A bridge deck-separated beam-arch combined V-shaped underarch bridge structure according to claim 1, characterized in that the tie-bars (4) are anchored at both ends at the bridge spans at both ends.
9. The bridge deck-separated beam-arch combined V-shaped lower arch-supporting bridge structure according to claim 1, wherein one arch rib (2) is arranged at the middle position of the first main beam (1) and the second main beam (5).
10. The bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure according to any one of claims 1-9, wherein two arch ribs (2) are provided, a first arch rib is defined near the first girder (1), and a second arch rib is defined near the second girder (5), wherein suspension rods (3) are provided between the first girder (1) and the first arch rib, between the second girder (5) and the second arch rib, between the first girder (1) and the second arch rib, and between the second girder (5) and the first girder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310068216.0A CN117211148A (en) | 2023-01-31 | 2023-01-31 | Bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310068216.0A CN117211148A (en) | 2023-01-31 | 2023-01-31 | Bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure |
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| Publication Number | Publication Date |
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| CN117211148A true CN117211148A (en) | 2023-12-12 |
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| CN202310068216.0A Pending CN117211148A (en) | 2023-01-31 | 2023-01-31 | Bridge deck separated beam-arch combined V-shaped lower arch-bearing bridge structure |
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