CN210482019U - High-pier large-span station bridge structure of high-speed railway in hard mountain area - Google Patents
High-pier large-span station bridge structure of high-speed railway in hard mountain area Download PDFInfo
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- CN210482019U CN210482019U CN201920794863.9U CN201920794863U CN210482019U CN 210482019 U CN210482019 U CN 210482019U CN 201920794863 U CN201920794863 U CN 201920794863U CN 210482019 U CN210482019 U CN 210482019U
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Abstract
The utility model provides a major span station bridge structure of high-speed railway high mound in difficult mountain area, satisfies the normal prerequisite that moves more and the passenger is started, is arrived at the station and gets on or off the bus minimum transverse space interval requirement under, avoids setting up the major span platform bridge of high mound alone, is showing and is reducing engineering cost, and the bridge construction is more safe convenient. The bridge pier is composed of a left bridge pier and a right bridge pier which are arranged at intervals in the transverse bridge direction, the bridge span beam body is composed of a left beam body and a right beam body which are arranged side by side, the left beam body is located on the left bridge pier, the right beam body is located on the right bridge pier, and two high-pier large-span prestressed concrete beam type bridges which are arranged side by side are formed. The left side platform, the left line to the departure line and the railway main line left line are sequentially arranged on the left side beam body from outside to inside, the right side platform, the right line to the departure line and the railway main line right line are sequentially arranged on the right side beam body from outside to inside, and the left side beam body and the right side beam body are transversely and symmetrically arranged.
Description
Technical Field
The utility model relates to a bridge engineering, in particular to big span station bridge structure of high mound of high-speed railway in hard mountain area.
Background
In recent years, the construction of a large span bridge of a high-speed railway in a mountainous area in China is rapidly developed, the terrain relief of a hard mountainous area is large, the space is narrow, the site condition is difficult to meet the requirements of a station platform, and the technical standard of the high-speed railway is high, the radius of a curve is large, and the line is difficult to expand, so that a station platform is usually arranged on the bridge by the high-speed railway in the hard mountainous area, a platform bridge is arranged, only mountainous area channels and the platform are fully utilized for station arrangement, the station bridge is combined with the scale of the high-speed railway station in the mountainous area, the station bridge is generally composed of a platform, a station to departure line and a railway main line, the platform is composed of a 4-line railway (2-line station to departure line) +2 platforms, the platform main line is positioned in the middle, a train passing through the platform can directly cross the platform, the platform main line is arranged on two sides, the platform is arranged from 1 station to the departure line (the length is generally 450m, the width is 8m, a canopy is arranged on the platform), the platform is arranged on two sides of the two lines, the platform is arranged on the platform, the two lines are arranged on the single-line bridge, the platform, the two-line bridge, the two-line width of the platform bridge, namely, the two-line width of the platform bridge is arranged from the platform bridge, the platform is arranged on the platform bridge, the two-line bridge, the platform-line width of the two-width-.
The above three arrangement methods have the following disadvantages: the three arrangement methods are the scheme that the platforms on two sides are independently bridged, the platform width is 8m, the platform beam, the bridge piers and the foundation need to be independently arranged, material waste is caused, and the appearance is influenced due to the fact that the transverse bridge piers are erected. The three arrangement methods can meet the requirements of short and small-span station bridges in plain areas. However, for a high-speed railway station bridge in a hard mountain area, in order to fully utilize the space, a station is often arranged at a valley, the station bridge needs to be passed by a high-pier large-span bridge, in order to ensure the transverse rigidity of a main line and a station line, the bridge piers need to be set to be inclined transversely, the distance between railway lines of the station bridge often adopts 6.5m, and the bridge cannot meet the space requirement that each bridge is provided with the bridge piers independently by the three arrangement methods. Therefore, for the high pier large-span station bridge of the high-speed railway in the mountainous area, the existing arrangement method has certain limitations, and the problem that the lower part structures of bridges interfere with each other cannot be solved. And the platform only used for passengers to get on or off the train still needs to be provided with a large-span bridge independently, which causes great waste of building materials, and each bridge is constructed independently, so that not only are the number of construction machines increased and the construction period long, but also the problem of mutual interference in construction exists, which affects the construction safety and is neither economical nor beautiful.
Therefore, for the high-pier large-span station bridge of the high-speed railway in the hard mountainous area, an economic, attractive and reasonable bridge deck arrangement method is urgently needed to solve the problem that the station is arranged in the narrow space of the high-speed railway in the hard mountainous area.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a major span station bridge structure of high mound of hard mountain area high-speed railway is provided, satisfying the train and normally going out with the passenger, arrive and get on or off the bus under the prerequisite of minimum horizontal space interval requirement, avoid setting up alone the major span platform bridge of high mound, show reduction engineering cost, and the bridge construction is more safe convenient.
The utility model provides a technical scheme that its technical problem adopted as follows:
the utility model discloses a high mound large-span station bridge structure of high-speed railway in difficult mountain area, including the bridge span body of pier and sitting on it, characterized by: the bridge pier is composed of a left bridge pier and a right bridge pier which are arranged at intervals in the transverse bridge direction, the bridge span beam body is composed of a left beam body and a right beam body which are arranged side by side, the left beam body is located on the left bridge pier, the right beam body is located on the right bridge pier, and two high-pier large-span prestressed concrete beam type bridges which are arranged side by side are formed; the left side beam body is sequentially provided with a left side platform, a left line to the departure line and a railway main line left line from outside to inside, the right side beam body is sequentially provided with a right side platform, a right line to the departure line and a railway main line right line from outside to inside, and the left side beam body and the right side beam body are transversely symmetrically arranged.
The left beam body and the right beam body are of prestressed concrete box beam structures, the cross section of a single box and a single chamber or a single box and multiple chambers are formed, and a middle gap is formed between the end faces of the inner side flanges of the left beam body and the right beam body.
The left platform and the right platform are respectively arranged on the outer side flanges of the left beam body and the right beam body.
The beneficial effects of the utility model are that:
firstly, a passenger getting-on and getting-off platform in a station is arranged as one part of a box girder of a straight line bridge, so that a high-pier large-span platform bridge is avoided being independently arranged, and the construction cost is obviously reduced;
secondly, the whole station range is a double-deck bridge, so that the bridge structure is more concise and attractive, the construction interference is small, and the safety is higher;
the bridge deck is particularly suitable for bridge deck arrangement of a high-pier large-span station bridge in a hard mountain area, is simple and attractive in structure, is perfectly integrated with surrounding natural environments in a Chongshan mountain and a steep hill, and provides a good space solution for station establishment of high-speed railways in the mountain area.
Drawings
The specification includes the following four figures:
FIG. 1 is a schematic view of the bridge span vertical plane layout of the high pier large span station bridge structure of the high speed railway in the hard mountainous area;
FIG. 2 is a typical sectional view of a structure of a large-span station bridge of a high pier of a high-speed railway in a hard mountain area;
FIG. 3 is a schematic view of the bridge span plan of the high pier large-span station bridge structure of the high-speed railway in the hard mountainous area;
fig. 4 is a partially enlarged view a of fig. 2.
The figure shows the components, the part names and the corresponding marks:
the system comprises a left platform 10, a left line-to-departure line 11, a railway main line left line 12, a railway main line right line 13, a right line-to-departure line 14, a right platform 15, a platform top plate 16, a platform vertical wall 17, a platform canopy column 18 and a canopy column base 19; a bridge span body 20, a left beam body 20a, a right beam body 20b, and a middle gap 20 c; a pier 30, a left pier 30a, and a right pier 30 b; a base 40.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Referring to fig. 1, 2 and 3, the present invention relates to a large-span station bridge structure of high pier of high speed railway in hard mountainous area, comprising bridge piers 30 and bridge span bodies 20 located thereon. The bridge pier 30 comprises a left pier 30a and a right pier 30b which are arranged at intervals in the transverse bridge direction, the bridge span beam body 20 comprises a left beam body 20a and a right beam body 20b which are arranged side by side, the left beam body 20a is located on the left pier 30a, the right beam body 20b is located on the right pier 30b, and two high-pier large-span prestressed concrete beam type bridges which are arranged side by side are formed. The station is arranged on the bridge floor of the beam body 20, the station scale is 4 railways and 2 platforms, the left platform 10, the left line to the departure line 11 and the railway main line left line 12 are sequentially arranged on the left beam body 20a from outside to inside, the right platform 15, the right line to the departure line 14 and the railway main line right line 13 are sequentially arranged on the right beam body 20b from outside to inside, and the left beam body 20a and the right beam body 20b are transversely and symmetrically arranged. Under the prerequisite that satisfies the normal line of going of train and passenger's departure, the minimum horizontal space interval requirement of getting on or off the bus that arrives at a station, avoid setting up alone high mound long-span platform bridge, show reduction engineering cost, and the bridge construction is more safe convenient. The whole double-deck bridge that is of station scope for the bridge structures is more succinct pleasing to the eye, and the construction is disturbed for a short time, and the security is higher.
Referring to fig. 2, the left and right beam bodies 20a and 20b have a prestressed concrete box girder structure, a single-box single-room cross section or a single-box multi-room cross section, and a middle gap 20c is formed between inner flange end surfaces of the left and right beam bodies 20a and 20 b. The width of the middle gap 20c is 10-20 cm. The arrangement of the bridge deck track bed is guaranteed, and meanwhile, the beam body construction is facilitated.
Referring to fig. 2 and 4, the left and right platforms 10 and 15 are respectively disposed on the outer side flanges of the left and right beam bodies 20a and 20 b. The left platform 10 and the right platform 15 comprise platform top plates 16, platform vertical walls 17 and platform canopy columns 18, and the platform vertical walls 17 are arranged on the outer side flanges of the left beam body 20a and the right beam body 20b at intervals in the transverse bridge direction. The reinforcing bar of platform vertical wall 17 stretches into platform roof 16 and left side width of cloth roof beam body 20a, forms overall structure in the right side width of cloth roof beam body 20b, and platform canopy post 18 sets up directly over left side width of cloth roof beam body 20a, the right side width of cloth roof beam body 20b outside web through canopy post base 19, passes through the web with the load of canopy post and transmits pier 30, basis 40.
As an optimized scheme, the width of the left station 10 and the right station 15 is 8.0m, the distance between the edge of the left station 10 and the center of the left line to the origin 11, the distance between the edge of the right station 15 and the center of the right line to the origin 14 are 1.75m, the distance between the left line to the origin 11 and the left line 12 of the main railway line, the distance between the right line to the origin 14 and the right line 13 of the main railway line are 6.5m, and the distance between the left line 12 of the main railway line and the right line 13 of the main railway line is 5.0 m.
The utility model discloses adopt succinct "erect wall + roof" structure setting on the roof beam body outside edge of a wing of main line bridge with the platform, avoided the platform to set up the high mound alone and stride the bridge greatly, can show reduction engineering cost. The platform has simple structure, definite force transmission, convenient construction and short construction period, and is a safe, economic, applicable and beautiful structure.
The applicant successfully applies the utility model to the bridge design of Yuku high-speed railway Yanjin south station bridge. The Yanjin south station has the scale of 4 railways (2 positive lines +2 stations from the station to the departure line) +2 platforms, the stations are arranged on the valley of the white river, the positive bridge spans the white river by adopting a rigid bridge with the span of (68+128+68), and the bridge deck is close to 100m away from the river surface. If a traditional station bridge arrangement method is adopted, two platform bridges with the span of (68+128+68) m rigid frames need to be independently arranged in the station, the width of the bridge deck is 9m, and the construction cost is increased by 3379.2 ten thousand yuan. And adopt the utility model discloses a structure sets up the platform in the edge of a wing position of main line bridge, only needs to do the case roof beam slightly widely to utilize the basis of the main line large span roof beam portion, the structure is succinct, and the atress is clear and definite, and it is 1056.0 ten thousand yuan to add the platform part and increase the cost, compares original technique, adopts the utility model discloses can save 2323.2 ten thousand yuan, simplify the station structure when reducing the cost by a wide margin, coordinate with the surrounding environment, the station is more pleasing to the eye to become the high-speed railway marker engineering in the mountain area of danger.
The above description is only used for illustrating some principles of the high-pier large-span station bridge structure of the high-speed railway in the hard mountainous area of the present invention, and it is not intended to limit the present invention to the specific structure and the application range shown and described, so all the corresponding modifications and equivalents that may be utilized all belong to the patent scope applied by the present invention.
Claims (5)
1. The utility model provides a big span station bridge structure of high mound of high-speed railway in difficult mountain area, includes pier (30) and the bridge span body (20) of sitting on it, characterized by: the bridge pier (30) is composed of a left bridge pier (30a) and a right bridge pier (30b) which are arranged at intervals in the cross bridge direction, the bridge span beam body (20) is composed of a left beam body (20a) and a right beam body (20b) which are arranged side by side, the left beam body (20a) is located on the left bridge pier (30a), and the right beam body (20b) is located on the right bridge pier (30b), so that two high-pier large-span prestressed concrete beam type bridges which are arranged side by side are formed; the left side beam body (20a) is sequentially provided with a left side platform (10), a left line to the departure line (11) and a railway main line left line (12) from outside to inside, the right side beam body (20b) is sequentially provided with a right side platform (15), a right line to the departure line (14) and a railway main line right line (13) from outside to inside, and the left side beam body (20a) and the right side beam body (20b) are transversely and symmetrically arranged.
2. The high-pier large-span station bridge structure of the high-speed railway in the hard mountainous area as claimed in claim 1, wherein: the left beam body (20a) and the right beam body (20b) adopt a single-box single-chamber section box beam or a single-box multi-chamber section box beam, and a middle gap (20c) exists between the end faces of the inner side flanges of the left beam body (20a) and the right beam body (20 b).
3. The high-pier large-span station bridge structure of the high-speed railway in the hard mountainous area as claimed in claim 2, wherein: the left platform (10) and the right platform (15) are respectively arranged on the outer side flanges of the left beam body (20a) and the right beam body (20 b).
4. A high pier large span station bridge construction of a high speed railway in a hard mountain area as claimed in claim 3, characterized in that: left side platform (10), right side platform (15) include platform roof (16), platform vertical wall (17) and platform canopy post (18), and platform vertical wall (17) cross-bridge sets up on the outside flange of left side width of cloth roof beam body (20a), right side width of cloth roof beam body (20b) to the interval, and the reinforcing bar of platform vertical wall (17) stretches into platform roof (16) and left side width of cloth roof beam body (20a), forms overall structure in right side width of cloth roof beam body (20b), and platform canopy post (18) set up in right-hand member roof beam body (20a), right side width of cloth roof beam body (20b) outside web through canopy post base (19).
5. The high-pier large-span station bridge structure of the high-speed railway in the hard mountainous area as claimed in claim 1, wherein: the width of the left side platform (10) and the right side platform (15) is 8.0m, the distance between the edge of the left side platform (10) and the center of the left line to the line (11), the distance between the edge of the right side platform (15) and the center of the right line to the line (14) are 1.75m, the distance between the left line to the line (11) and the left line (12) of the main railway line, the distance between the right line to the line (14) and the right line (13) of the main railway line are 6.5m, and the distance between the left line (12) of the main railway line and the right line (13) of the main railway line is 5.0 m.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019202657726 | 2019-03-01 | ||
| CN201920265772 | 2019-03-01 |
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| CN210482019U true CN210482019U (en) | 2020-05-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636294A (en) * | 2019-03-01 | 2020-09-08 | 中铁二院工程集团有限责任公司 | High-pier large-span station bridge structure of high-speed railway in hard mountain area |
| CN111676848A (en) * | 2020-06-15 | 2020-09-18 | 中铁二院工程集团有限责任公司 | Fully prefabricated assembled platform structure for subway station |
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2019
- 2019-05-29 CN CN201920794863.9U patent/CN210482019U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636294A (en) * | 2019-03-01 | 2020-09-08 | 中铁二院工程集团有限责任公司 | High-pier large-span station bridge structure of high-speed railway in hard mountain area |
| CN111676848A (en) * | 2020-06-15 | 2020-09-18 | 中铁二院工程集团有限责任公司 | Fully prefabricated assembled platform structure for subway station |
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