CN107724227A - A kind of continuous rigid frame deck type plate arch combined bridge - Google Patents
A kind of continuous rigid frame deck type plate arch combined bridge Download PDFInfo
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- CN107724227A CN107724227A CN201711213570.9A CN201711213570A CN107724227A CN 107724227 A CN107724227 A CN 107724227A CN 201711213570 A CN201711213570 A CN 201711213570A CN 107724227 A CN107724227 A CN 107724227A
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- 239000004567 concrete Substances 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 12
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 11
- 238000010276 construction Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D12/00—Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Bridges Or Land Bridges (AREA)
Abstract
Continuous rigid frame deck type plate arch combined bridge provided by the invention, the bridge floor beam first end rigid connection with the first spandrel column, the second spandrel column and the 3rd spandrel column respectively；Second end of the first spandrel column and the pier top rigid connection of main pier；Second end of the second spandrel column and the pier top rigid connection of the first abutment pier；Second end of the 3rd spandrel column and the pier top rigid connection of the second abutment pier；The side rigid connection of the first end of first arch rib and the pier top of main pier；Second end of the first arch rib and the side rigid connection of the pier top of the second abutment pier；The opposite side rigid connection of the first end of second arch rib and the pier top of main pier；Second end of the second arch rib and the side rigid connection of the pier top of the first abutment pier；The opposite side rigid connection of the first end of first semiarch and the pier top of the first abutment pier；Second end of the first semiarch and bridge floor beam rigid connection；The opposite side rigid connection of the first end of second semiarch and the pier top of the second abutment pier；Second end of the second semiarch and bridge floor beam rigid connection.Structure integral rigidity is big, and span is promoted to 100~300m.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a continuous rigid frame-deck plate arch combined bridge.
Background
With the continuous improvement of the productivity of human society, people put higher demands on roads and traffic. In the construction of roads and traffic, the erection of the bridge is an important link, and particularly, the erection of a large-span steel box bridge under the condition of a less ideal geographical environment is a difficult problem in the construction of the bridge.
Nowadays, with the rapid development of national economy and modern transportation industry, the number of concrete continuous steel bridges and deck arch bridges is increasing.
The continuous concrete rigid frame has the advantages of low manufacturing cost, simple structure and convenience in construction, but has obvious competitive advantages only in the span range of 48-120 m, and the proportion of the self weight of the structure is too large along with the increase of the span, so that the structure is increased in multiples due to the control of the bearing capacity of a concrete material, and creep is difficult to control. The deck arch has the advantages of large spanning capacity and small creep. However, the construction is complex, the arch rib needs a large amount of steel stiffened frameworks, the manufacturing cost is high, the arch springing thrust exists, the adaptability to the terrain is poor, the method is generally only suitable for deep-cut canyons, and the requirement on the bearing capacity of a foundation rock stratum is high.
Disclosure of Invention
To at least partially overcome the above-mentioned problems of the prior art, the present invention provides a continuous rigid frame-deck arch composite bridge.
According to an aspect of the present invention, there is provided a continuous rigid frame-deck arch-type composite bridge, comprising: the bridge comprises a bridge surface beam, a first arch rib, a second arch rib, a first half arch, a second half arch, a first arch upright post, a second arch upright post, a third arch upright post, a main pier, a first side pier and a second side pier; the bridge deck beam is respectively and rigidly connected with the first ends of the first arch upright post, the second arch upright post and the third arch upright post; the second end of the first arch upright post is rigidly connected with the pier top of the main pier; the second end of the second arch upright post is rigidly connected with the pier top of the first side pier; the second end of the third arch upright post is rigidly connected with the pier top of the second side pier; the first end of the first arch rib is rigidly connected with one side of the pier top of the main pier; the second end of the first arch rib is rigidly connected with one side of the pier top of the second side pier; the first end of the second arch rib is rigidly connected with the other side of the pier top of the main pier; the second end of the second arch rib is rigidly connected with one side of the pier top of the first side pier; the first end of the first half arch is rigidly connected with the other side of the pier top of the first side pier; the second end of the first half arch is rigidly connected with the bridge deck beam; the first end of the second half arch is rigidly connected with the other side of the pier top of the second side pier; and the second end of the second half arch is rigidly connected with the bridge deck beam.
Wherein the first arch rib is separated from the bridge deck beam within 0.15-0.25 times of the span of one side of the main pier; the first arch rib is separated from the bridge deck beam within 0.15-0.25 times of span of one side of the second side pier; the second arch rib is separated from the bridge deck beam within the range of 0.15-0.25 times of the span of the other side of the main pier; the second arch rib is separated from the bridge deck beam within 0.15-0.25 times of span of one side of the first side pier; the first half arch is separated from the bridge deck beam within the range of 0.15-0.25 times of the span of the other side of the first side pier; the second half arch is separated from the bridge deck beam within the range of 0.15-0.25 times of the span of the other side of the second side pier; the first arch rib, the second arch rib, the first half arch and the second half arch are all in a concrete plate arch form with a box-shaped section; and the bottom plates of the first arch rib, the second arch rib, the first half arch and the second half arch all adopt 2.5-3 times of parabolas.
Wherein the bridge deck beam includes: the device comprises a top plate, a bottom plate, cantilever plates at two sides of the top plate and web plates at two sides between the top plate and the bottom plate; wherein the top plate, the cantilever plate and the web plate are connected together; the bottom plate and the web plate are connected together; the top plate, the cantilever plate, the web plate and the bottom plate are spliced into a closed box girder structure through cast-in-place concrete at the joint.
The main pier is a transverse double-limb thin-wall pier; the first side pier and the second side pier are both longitudinal double-limb thin-wall piers.
Wherein the bottoms of the main pier, the first side pier and the second side pier are provided with a foundation and a bearing platform; wherein the foundation is disposed in a basement layer below the surface of the earth; the bearing platform is positioned above the foundation and is connected with the top of the foundation into a whole; the bottoms of the main pier, the first side pier and the second side pier are all arranged on the bearing platform and are all rigidly connected with the bearing platform.
And a first inter-limb tie beam is arranged between the first limb column of the main pier and the second limb column of the main pier.
A second inter-limb tie beam is arranged between the first limb column of the first side pier and the second limb column of the first side pier; and a third inter-limb tie beam is arranged between the first limb column of the second side pier and the second limb column of the second side pier.
Wherein, the main pier is provided with a through hole with a polygonal cross section.
And through holes with polygonal cross sections are arranged on the first side pier and/or the second side pier.
The cross sections of the main pier, the first side pier and the second side pier are all in a round end shape or a rectangular shape.
In summary, in the continuous rigid frame-deck type plate arch composite bridge provided by the invention, the bridge deck beam is respectively and rigidly connected with the first ends of the first arch upright post, the second arch upright post and the third arch upright post; the second end of the first arch upright post is rigidly connected with the pier top of the main pier; the second end of the second arch upright post is rigidly connected with the pier top of the first side pier; the second end of the third arch upright post is rigidly connected with the pier top of the second side pier; the first end of the first arch rib is rigidly connected with one side of the pier top of the main pier; the second end of the first arch rib is rigidly connected with one side of the pier top of the second side pier; the first end of the second arch rib is rigidly connected with the other side of the pier top of the main pier; the second end of the second arch rib is rigidly connected with one side of the pier top of the first side pier; the first end of the first half arch is rigidly connected with the other side of the pier top of the first side pier; the second end of the first half arch is rigidly connected with the bridge surface beam; the first end of the second half arch is rigidly connected with the other side of the pier top of the second side pier; the second end of the second half arch is rigidly connected with the bridge deck beam. The continuous rigid frame-deck arch-slab combined bridge provided by the embodiment gives full play to the respective advantages of the continuous rigid frame bridge and the deck arch bridge, is reasonable in stress, large in integral rigidity of the structure, and can be lifted to 100-300 m in span; on the premise of meeting the structural stress, the rigidity of the system is improved, and the requirement of traveling crane on the rigidity is met; the continuous rigid frame is combined with the deck type plate arch, plate type arch ribs are arranged in a certain area, and the continuous rigid frame pier is combined with the deck type arch end upright post, so that the height of the pier is reduced, and the overall stability and the local stability of the pier are improved; the deck arch abutment and the middle upright post are eliminated, and the amount of foundation and beam engineering is reduced.
Drawings
Fig. 1 is a schematic structural view of a continuous rigid frame-deck arch-type composite bridge according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a bridge deck beam in a continuous rigid frame-deck arch-type composite bridge according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
Fig. 1 is a schematic structural view of a continuous rigid frame-deck plate-arch composite bridge according to an embodiment of the present invention, as shown in fig. 1, including: the bridge surface beam comprises a bridge surface beam 1, a first arch rib 3, a second arch rib 2, a first half arch 11, a second half arch 12, a first arch upright post 5, a second arch upright post 4, a third arch upright post 6, a main pier 7, a first side pier 8 and a second side pier 9; wherein,
the bridge deck beam 1 is respectively and rigidly connected with the first ends of the first arched upright post 5, the second arched upright post 4 and the third arched upright post 6;
the second end of the first arch upright post 5 is rigidly connected with the pier top of the main pier 7;
the second end of the second arch upright post 4 is rigidly connected with the pier top of the first side pier 8;
the second end of the third arch upright post 6 is rigidly connected with the pier top of the second side pier 9;
the first end of the first arch rib 3 is rigidly connected with one side of the pier top of the main pier 7;
the second end of the first arch rib 3 is rigidly connected with one side of the pier top of the second side pier 7;
the first end of the second arch rib 2 is rigidly connected with the other side of the pier top of the main pier 7;
the second end of the second arch rib 2 is rigidly connected with one side of the pier top of the first side pier 8;
the first end of the first half arch 11 is rigidly connected with the other side of the pier top of the first side pier 8;
the second end of the first half arch 11 is rigidly connected with the bridge deck beam 1;
the first end of the second half arch 12 is rigidly connected with the other side of the pier top of the second side pier 9;
the second end of the second half-arch 12 is rigidly connected to the bridge deck beam 1.
Preferably, the bridge deck beam 1 is arranged along the full length of the bridge span and is the main force transfer member for the load of the bridge deck, and the bridge deck beam 1 is a prestressed concrete member.
Preferably, the first arched stud 5 is used to transfer the load of the bridge deck beam 1 to the main pier 7; the second arched upright post 4 is used for transferring the load of the bridge surface beam 1 to the first side pier 8; the third arched upright post 6 is used for transferring the load of the bridge deck beam 1, the second side pier 9, the first arched upright post 5, the second arched upright post 4 and the third arched upright post 6 adopt rectangular sections and are reinforced concrete members.
The embodiment provides a continuous rigid frame-deck type plate arch combined bridge, wherein a bridge deck beam is respectively and rigidly connected with first ends of a first arch upright post, a second arch upright post and a third arch upright post; the second end of the first arch upright post is rigidly connected with the pier top of the main pier; the second end of the second arch upright post is rigidly connected with the pier top of the first side pier; the second end of the third arch upright post is rigidly connected with the pier top of the second side pier; the first end of the first arch rib is rigidly connected with one side of the pier top of the main pier; the second end of the first arch rib is rigidly connected with one side of the pier top of the second side pier; the first end of the second arch rib is rigidly connected with the other side of the pier top of the main pier; the second end of the second arch rib is rigidly connected with one side of the pier top of the first side pier; the first end of the first half arch is rigidly connected with the other side of the pier top of the first side pier; the second end of the first half arch is rigidly connected with the bridge surface beam; the first end of the second half arch is rigidly connected with the other side of the pier top of the second side pier; the second end of the second half arch is rigidly connected with the bridge deck beam. The continuous rigid frame-deck arch-slab combined bridge provided by the embodiment gives full play to the respective advantages of the continuous rigid frame bridge and the deck arch bridge, is reasonable in stress, large in integral rigidity of the structure, and can be lifted to 100-300 m in span; on the premise of meeting the structural stress, the rigidity of the system is improved, and the requirement of traveling crane on the rigidity is met; the continuous rigid frame is combined with the deck type plate arch, plate type arch ribs are arranged in a certain area, and the continuous rigid frame pier is combined with the deck type arch end upright post, so that the height of the pier is reduced, and the overall stability and the local stability of the pier are improved; the deck arch abutment and the middle upright post are eliminated, and the amount of foundation and beam engineering is reduced.
In another embodiment of the present invention, based on the above embodiment, the first arch rib 3 is separated from the bridge girder 1 within a span range of 0.15 to 0.25 times of one side of the main pier 7;
the first arch rib 3 is separated from the bridge deck beam 1 within 0.15-0.25 times of the span of one side of the second side pier 9;
the second arch rib 2 is separated from the bridge deck beam 1 within the range of 0.15-0.25 times of the span of the other side of the main pier 7;
the second arch rib 2 is separated from the bridge deck beam 1 within 0.15-0.25 times of the span of one side of the first side pier 8;
the first half arch 11 is separated from the bridge deck beam 1 within the range of 0.15-0.25 times of the span of the other side of the first side pier 8;
the second half arch 12 is separated from the bridge deck beam 1 within 0.15-0.25 times of the span of the other side of the second side pier 9;
the first arch rib 3, the second arch rib 2, the first half arch 11 and the second half arch 12 are all in a concrete plate arch form with a box-shaped section;
the bottom plates of the first arch rib 3, the second arch rib 2, the first half arch 11 and the second half arch 12 are all parabolic curves of 2.5-3 times.
Preferably, the first arch rib 3 is separated from the bridge deck beam 1 within 0.2 times the span of one side of the main pier 7; the first arch rib 3 is separated from the bridge deck beam 1 within 0.2 times of the span of one side of the second side pier 9; the second arch rib 2 is separated from the bridge deck beam 1 within 0.2 times of the span of the other side of the main pier 7; the second arch rib 2 is separated from the bridge deck beam 1 within 0.2 times of the span of one side of the first side pier 8; the first half arch 11 is separated from the bridge deck beam 1 within 0.2 times of the span of the other side of the first side pier 8; the second half-arch 12 is separated from the deck beam 1 over 0.2 span of the other side of the second side pier 9.
The first rib 3, the second rib 2, the first half arch 11 and the second half arch 12 are coupled to the bridge deck 1 in the remaining range.
Preferably, the bottom plates of the first arch rib 3, the second arch rib 2, the first half arch 11 and the second half arch 12 all adopt 2.8 times of parabolas.
The embodiment provides a continuous rigid frame-deck type plate arch combined bridge, wherein a first arch rib is separated from a bridge surface beam within a span range of 0.15-0.25 times of one side of a main pier; the first arch rib is separated from the bridge surface beam within the span range of 0.15-0.25 times of one side of the second side pier; the second arch rib is separated from the bridge surface beam within the span range of 0.15-0.25 times of the other side of the main pier; the second arch rib is separated from the bridge surface beam within the span range of 0.15-0.25 times of one side of the first side pier; the first half arch is separated from the bridge surface beam within the span range of 0.15-0.25 times of the other side of the first side pier; the second half arch is separated from the bridge surface beam within the span range of 0.15-0.25 times of the other side of the second side pier; the first arch rib, the second arch rib, the first half arch and the second half arch are combined with the bridge surface girder in other ranges, so that the number of the arch ribs is reduced, creep deformation is reduced, a deck arch abutment and a middle upright post are eliminated, and the engineering quantity of a foundation and a girder part is reduced.
In still another embodiment of the present invention, on the basis of the above-described embodiment, referring to fig. 2, the bridge deck beam 1 includes: a top plate 13, a bottom plate 16, cantilever plates 14 at two sides of the top plate, and webs 15 at two sides between the top plate and the bottom plate; wherein,
the top plate 13, the cantilever plate 14 and the web 15 are connected together;
the bottom plate 16 and the web 15 are connected together;
the top plate 13, the cantilever plate 14, the web plate 15 and the bottom plate 16 are spliced into a closed box girder structure through cast-in-place concrete at the joint.
The embodiment provides a continuous rigid frame-deck type plate arch combined bridge, a top plate, a cantilever plate, a web plate and a bottom plate are spliced into a closed box girder structure through cast-in-place concrete at the joint, a concrete structure is adopted, cantilever pouring construction is adopted, the construction period is greatly shortened, and the construction cost is reduced.
In a further embodiment of the invention, on the basis of the above embodiment, said main piers 7 are transverse double-limb thin-walled piers;
the first side pier 8 and the second side pier 9 are both longitudinal double-limb thin-wall piers.
Preferably, the main pier 7 adopts a transverse double-limb thin-wall structure for increasing the transverse rigidity and stability of the structure; the first side pier 8 adopts a longitudinal double-limb thin-wall structure and is used for reducing the longitudinal rigidity of the first side pier 8 and the volume of the first side pier 8; the second side pier 9 adopts a longitudinal double-limb thin-wall structure for reducing the longitudinal rigidity of the second side pier 9 and the volume of the second side pier 9.
Preferably, the main pier 7, the first side pier 8 and the second side pier 9 are reinforced concrete members.
In a further embodiment of the present invention, on the basis of the above embodiment, the foundation 10 and the bearing platform are installed at the bottom of the main pier 7, the first side pier 8 and the second side pier 9; wherein,
the foundation 10 is arranged in a foundation layer below the ground surface;
the bearing platform is positioned above the foundation 10 and is connected with the top of the foundation 10 into a whole;
the bottoms of the main pier 7, the first side pier 8 and the second side pier 9 are all arranged on the bearing platform and are rigidly connected with the bearing platform.
Preferably, the foundation 10 is the lowermost structure of the bridge, which sits directly on the rock or foundation, takes all the loads from the superstructure and transfers them to the foundation, requiring the foundation and foundation to have sufficient strength, rigidity and overall stability so that they do not undergo excessive horizontal deflection or uneven settlement.
In a further embodiment of the invention, on the basis of the above embodiment, a first inter-limb tie beam is arranged intermediate the first limb column of the main pier 7 and the second limb column of the main pier 7.
The embodiment provides a continuous rigid frame-deck type plate arch combined bridge, wherein a first inter-limb tie beam is arranged between a first limb column of a main pier and a second limb column of the main pier, and the stability of the main pier is improved.
In a further embodiment of the invention, on the basis of the above embodiment, a second inter-limb tie beam is arranged between the first limb column of the first side pier 8 and the second limb column of the first side pier 8;
and a third inter-limb tie beam is arranged between the first limb column of the second side pier 9 and the second limb column of the second side pier 9.
The embodiment provides a continuous rigid frame-deck type plate arch combined bridge, and a second inter-limb tie beam is arranged between a first limb column of a first side pier and a second limb column of the first side pier, and a third inter-limb tie beam is arranged between the first limb column of a second side pier and the second limb column of the second side pier, so that the stability of the first side pier and the second side pier is improved.
In another embodiment of the present invention, on the basis of the above embodiment, the main pier 7 is provided with a through hole having a polygonal cross-sectional shape.
Preferably, the main pier 7 is provided with a through hole having a rectangular sectional shape.
The embodiment provides a continuous rigid frame-deck plate arch combined bridge, and the main pier is provided with a through hole with a rectangular cross section, so that the concrete consumption of the main pier is reduced.
In a further embodiment of the invention, on the basis of the above embodiment, the first side pier 8 and/or the second side pier 9 is provided with a through hole having a polygonal cross-sectional shape.
Preferably, the first side abutment 8 and/or the second side abutment 9 are provided with through holes having a rectangular cross-sectional shape.
The embodiment provides a continuous rigid frame-deck type plate arch combined bridge, through holes with rectangular cross sections are formed in the first side pier and/or the second side pier, and the concrete consumption of the first side pier and/or the second side pier is reduced.
In a further embodiment of the invention, on the basis of the above embodiment, the cross-sectional shapes of the main pier 7, the first side pier 8 and the second side pier 9 are all rounded-end or rectangular.
The cross-sectional shapes of the main pier 7, the first side pier 8 and the second side pier 9 are preferably all rectangular.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A continuous rigid frame-deck type plate arch combined bridge is characterized by comprising: the bridge comprises a bridge surface beam, a first arch rib, a second arch rib, a first half arch, a second half arch, a first arch upright post, a second arch upright post, a third arch upright post, a main pier, a first side pier and a second side pier; wherein,
the bridge surface beam is respectively and rigidly connected with the first ends of the first arch upright post, the second arch upright post and the third arch upright post;
the second end of the first arch upright post is rigidly connected with the pier top of the main pier;
the second end of the second arch upright post is rigidly connected with the pier top of the first side pier;
the second end of the third arch upright post is rigidly connected with the pier top of the second side pier;
the first end of the first arch rib is rigidly connected with one side of the pier top of the main pier;
the second end of the first arch rib is rigidly connected with one side of the pier top of the second side pier;
the first end of the second arch rib is rigidly connected with the other side of the pier top of the main pier;
the second end of the second arch rib is rigidly connected with one side of the pier top of the first side pier;
the first end of the first half arch is rigidly connected with the other side of the pier top of the first side pier;
the second end of the first half arch is rigidly connected with the bridge deck beam;
the first end of the second half arch is rigidly connected with the other side of the pier top of the second side pier;
and the second end of the second half arch is rigidly connected with the bridge deck beam.
2. The continuous rigid frame-deck arch composite bridge of claim 1, wherein the first arch rib is separated from the deck beam by 0.15 to 0.25 span of one side of the main pier;
the first arch rib is separated from the bridge deck beam within 0.15-0.25 times of span of one side of the second side pier;
the second arch rib is separated from the bridge deck beam within the range of 0.15-0.25 times of the span of the other side of the main pier;
the second arch rib is separated from the bridge deck beam within 0.15-0.25 times of span of one side of the first side pier;
the first half arch is separated from the bridge deck beam within the range of 0.15-0.25 times of the span of the other side of the first side pier;
the second half arch is separated from the bridge deck beam within the range of 0.15-0.25 times of the span of the other side of the second side pier;
the first arch rib, the second arch rib, the first half arch and the second half arch are all in a concrete plate arch form with a box-shaped section;
and the bottom plates of the first arch rib, the second arch rib, the first half arch and the second half arch all adopt 2.5-3 times of parabolas.
3. The continuous rigid frame-deck arch-built bridge of claim 1, wherein the deck beam comprises: the device comprises a top plate, a bottom plate, cantilever plates at two sides of the top plate and web plates at two sides between the top plate and the bottom plate; wherein,
the top plate, the cantilever plate and the web plate are connected together;
the bottom plate and the web plate are connected together;
the top plate, the cantilever plate, the web plate and the bottom plate are spliced into a closed box girder structure through cast-in-place concrete at the joint.
4. The continuous rigid frame-deck arch composite bridge of claim 1, wherein the main pier is a transverse double-limb thin-walled pier;
the first side pier and the second side pier are both longitudinal double-limb thin-wall piers.
5. The continuous rigid frame-deck arch-type composite bridge of claim 1, wherein the foundations of the main pier, the first side pier and the second side pier are all provided with a foundation and a bearing platform; wherein,
the foundation is arranged in a foundation layer below the ground surface;
the bearing platform is positioned above the foundation and is connected with the top of the foundation into a whole;
the bottoms of the main pier, the first side pier and the second side pier are all arranged on the bearing platform and are all rigidly connected with the bearing platform.
6. The continuous rigid frame-deck arch composite bridge of claim 1, wherein a first inter-limb tie beam is disposed intermediate the first limb column of the main pier and the second limb column of the main pier.
7. The continuous rigid frame-deck arch-braced composite bridge of claim 1, wherein a second interphalangeal tie beam is interposed between the first leg column of the first side pier and the second leg column of the first side pier;
and a third inter-limb tie beam is arranged between the first limb column of the second side pier and the second limb column of the second side pier.
8. The continuous rigid frame-deck arch erection bridge of claim 1, wherein said main piers are provided with through holes having a polygonal sectional shape.
9. The continuous rigid frame-deck arch erection bridge of claim 1, wherein the first and/or second side piers are provided with through holes having a polygonal cross-sectional shape.
10. The continuous rigid frame-deck arch composite bridge of claim 1, wherein the cross-sectional shapes of the main pier, the first side pier, and the second side pier are all rounded-end or rectangular.
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| CN201711213570.9A CN107724227A (en) | 2017-11-28 | 2017-11-28 | A kind of continuous rigid frame deck type plate arch combined bridge |
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| CN201711213570.9A CN107724227A (en) | 2017-11-28 | 2017-11-28 | A kind of continuous rigid frame deck type plate arch combined bridge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356030A (en) * | 2018-10-16 | 2019-02-19 | 中铁十九局集团第二工程有限公司 | Bridge double-limb Thin-Wall Piers construction method |
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| CN112127265B (en) * | 2020-10-30 | 2022-04-08 | 中铁大桥勘测设计院集团有限公司 | Steel diagonal bracing continuous rigid frame bridge |
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