CN106988423B - Rail transit elevated station - Google Patents
Rail transit elevated station Download PDFInfo
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- CN106988423B CN106988423B CN201710235612.2A CN201710235612A CN106988423B CN 106988423 B CN106988423 B CN 106988423B CN 201710235612 A CN201710235612 A CN 201710235612A CN 106988423 B CN106988423 B CN 106988423B
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- 239000004567 concrete Substances 0.000 claims abstract description 134
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 239000002131 composite material Substances 0.000 claims description 37
- 239000010410 layer Substances 0.000 claims description 18
- 239000011150 reinforced concrete Substances 0.000 claims description 9
- 239000002344 surface layer Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- YTAHJIFKAKIKAV-XNMGPUDCSA-N [(1R)-3-morpholin-4-yl-1-phenylpropyl] N-[(3S)-2-oxo-5-phenyl-1,3-dihydro-1,4-benzodiazepin-3-yl]carbamate Chemical compound O=C1[C@H](N=C(C2=C(N1)C=CC=C2)C1=CC=CC=C1)NC(O[C@H](CCN1CCOCC1)C1=CC=CC=C1)=O YTAHJIFKAKIKAV-XNMGPUDCSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
- E04B1/3408—Extraordinarily-supported small buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a rail transit elevated station, comprising: a plurality of single-column steel-concrete combined frame structures; each single-column steel-concrete combined frame comprises: the system comprises a pier column, a first steel-concrete combined beam, a second steel-concrete combined beam, a platform structure, a track beam and a roof canopy; the first steel-concrete combined beam is arranged at the top of the pier column through a first combined beam column node; the second steel-concrete combined beam is arranged on the tops of the center column and the side columns of the station hall layer through a second combined beam column node; the roof canopy is arranged on the tops of the support columns at the two ends of the second steel-concrete combined beam; the first steel-concrete combined beam and the second steel-concrete combined beam are square steel tube combined beams with accommodating cavities, and concrete is poured at the bottoms of the accommodating cavities and the joints of the first combined beam-column joints or the second combined beam-column joints. The rail transit elevated station can reduce the dead weight of structural members, improve the ductility and the seismic performance of the structure and shorten the construction period.
Description
Technical Field
The invention relates to a rail transit technology, in particular to a rail transit elevated station.
Background
At present, elevated stations (side platform and island platform stations) in domestic rail transit project roads are of single-column structures in a high proportion and are all of cast-in-place reinforced concrete structures. The structure has the advantages that: the maintenance workload is small in the operation process, and the construction cost is relatively low.
However, the rail transit elevated station using the conventional concrete single-column structure in the prior art also has the following disadvantages:
1. the traditional concrete single-column structure has the advantages of large self weight, large component size and large structural size, and the whole lateral force resisting system of the structure only has one single column and can bear large axial force and bending moment under the action of earthquake. The plastic hinge formed by the reinforced concrete single column has poor ductility during heavy earthquake, cannot well consume the energy of the structure during the earthquake, and is very easy to damage irreparably, so the structure has poor earthquake resistance under the earthquake action.
2. Traditional concrete single-column structure all adopts cast in situ's mode, and the construction is complicated, generally all need use following process: erecting a full framing scaffold to pour beam slab components; erecting a template to pour a beam column component; binding reinforcing steel bars and the like. The above procedures are all required to be completed on site, which causes the defects of long construction period, long occupied road period, difficult concrete pouring and the like.
3. Because the member size of traditional concrete single-column structure is big, produce harmful effects to the urban landscape. Meanwhile, the concrete structure can cause great influence and pollution to the surrounding environment in the construction process.
4. The traditional concrete single-column structure is large in self-weight load, large in reinforcement amount of beam column components, small in reinforcement clear distance, large in reinforcement binding engineering amount, difficult in concrete pouring and difficult in construction quality control.
Accordingly, there is a need for an improved rail transit elevated station architecture in the art.
Disclosure of Invention
In view of the above, the invention provides a rail transit elevated station, which can greatly reduce the dead weight of structural members, improve the ductility and the seismic performance of a structure, shorten the construction period, improve the construction quality, reduce the road occupation time and reduce the influence on the environment.
The technical scheme of the invention is realized as follows:
a rail transit elevated station comprising: a plurality of single-column steel-concrete combined frame structures;
wherein, every single column steel-concrete composite frame structure all includes: the system comprises a pier column, a first steel-concrete combined beam, a second steel-concrete combined beam, a platform structure, a track beam and a roof canopy;
the top of the pier column is provided with a first combined beam column node;
the first steel-concrete combined beam is arranged at the top of the pier column through the first combined beam column joint;
the top of the first combined beam-column node is provided with a middle column; two ends of the first steel-concrete combined beam are provided with side columns; the top of the middle column is provided with a second combined beam-column node;
the second steel-concrete combined beam is arranged on the tops of the middle column and the side column through the second combined beam-column joint;
the platform structure and the track are arranged above the second steel-concrete combined beam; two ends of the second steel-concrete combined beam are provided with supporting columns;
the roof canopy is arranged on the top of the support column;
the first steel-concrete composite beam and the second steel-concrete composite beam are both square steel pipe composite beams; the middle part of the square steel pipe combination beam is provided with an accommodating cavity, and concrete is poured at the bottom of the accommodating cavity and the joint of the accommodating cavity and the first combination beam-column joint or the second combination beam-column joint;
the first steel-concrete combined beam, the second steel-concrete combined beam and two ends of the platform structure are respectively provided with a corresponding longitudinal connecting steel beam;
two adjacent single-column steel-concrete combined frames are connected through corresponding longitudinal connecting steel beams.
Preferably, the pier column is a square steel tube concrete column.
Preferably, the middle column and the side columns are both steel pipe concrete columns.
Preferably, prefabricated reinforced concrete plates are further paved on the upper surfaces of the first steel-concrete combined beam, the second steel-concrete combined beam and the platform structure; and a surface layer steel bar net sheet is arranged on the prefabricated reinforced concrete plate, and upper layer concrete is poured to finally form an integral combined floor system.
Preferably, the roof canopy is of a light steel structure.
As can be seen from the above, in the rail transit elevated station in the present invention, a single-column steel-concrete combined frame structure is employed. Because the steel-concrete structure is used in the single-column steel-concrete combined frame structure, the single-column steel-concrete combined frame structure has the advantages of light dead weight, smaller component size than that of a traditional pure concrete structure, light and attractive structure, small influence on the landscape, better structural ductility and superior anti-seismic performance. In addition, when installing above-mentioned elevated station, saved processes such as full hall scaffold, component template, a large amount of reinforcement, can make each part of above-mentioned elevated station in the mill in advance, then transport the on-the-spot and directly assemble to can improve construction quality greatly, reduce construction period, reduce and occupy the way time, reduce the influence to the environment.
Drawings
Fig. 1 is a front view of a rail transit elevated station in an embodiment of the present invention.
Fig. 2 is a sectional view of a rail transit elevated station in an embodiment of the present invention.
Fig. 3 is a side view of a rail transit elevated station in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.
The embodiment provides a rail transit elevated station.
Fig. 1 to 3 are a front view, a sectional view and a side view of a rail transit elevated station in the embodiment of the present invention, respectively. As shown in fig. 1 to 3, the rail transit elevated station in the embodiment of the present invention mainly includes: a plurality of single-column steel-concrete combined frame structures 10;
wherein, every single column steel-concrete composite frame structure all includes: pier stud 11, first steel-concrete composite beam 12, second steel-concrete composite beam 13, platform structure 14, track beam 15 and roof canopy 16;
the top of the pier stud 11 is provided with a first combined beam-column node 21;
the first steel-concrete composite beam 12 is installed on the top of the pier column 11 through the first composite beam-column node 21;
the top of the first combined beam-column node 21 is provided with a central column 22; two ends of the first steel-concrete composite beam 12 are provided with side columns 23; the top of the middle column 22 is provided with a second combined beam-column joint 24;
the second steel-concrete composite beam 13 is installed on the top of the center pillar 22 and the side pillars 23 through the second composite beam-column joint 24;
the platform structure 14 and the track beam 15 are disposed above the second steel-concrete composite beam 13; two ends of the second steel-concrete composite beam 13 are provided with support columns 25;
the roof canopy 16 is mounted on top of the support posts 25;
the first steel-concrete composite beam 12 and the second steel-concrete composite beam 13 are both square steel pipe composite beams; the middle part of the square steel pipe combination beam is provided with an accommodating cavity 26, and concrete is poured at the bottom of the accommodating cavity 26 and the joint of the accommodating cavity 26 and the first combination beam-column joint 21 or the second combination beam-column joint 24;
the two ends of the first steel-concrete combined beam 12, the second steel-concrete combined beam 13 and the platform structure 14 are respectively provided with a corresponding longitudinal connecting steel beam 31;
two adjacent single-column steel-concrete combined frame structures are connected through corresponding longitudinal connecting steel beams 31.
In the technical scheme of the invention, the rail transit elevated station adopts the single-column steel-concrete combined frame structure, and the single-column steel-concrete combined frame structure adopts a steel-concrete structure, so that the self weight is light, the component size is smaller than that of the traditional pure concrete structure, the structure is light and attractive, the influence on the landscape is small, the structural ductility is better, and the anti-seismic performance is superior. In addition, when installing above-mentioned elevated station, saved processes such as full hall scaffold, component template, a large amount of reinforcement, can make each part of above-mentioned elevated station in the mill, then assemble on the scene to can improve construction quality greatly, reduce construction period, reduce the time of occupying the road, reduce the influence to the environment.
In addition, preferably, in the embodiment of the present invention, the pier stud is a square steel tube concrete column, so that the pier stud has better ductility and earthquake resistance.
In the technical scheme of the invention, the first steel-concrete composite beam and the second steel-concrete composite beam are both square steel tube composite beams, concrete is poured into a box beam (namely an accommodating cavity) of each square steel tube composite beam, but the box beam is not completely filled with the concrete, the concrete is poured into the bottom (namely a lower flange) of the box beam and the joint of the box beam and a first composite beam column joint or a second composite beam column joint, and concrete is not poured into other parts, namely the box beam is equivalent to half-poured concrete, so that the composite beam stressed by the concrete and the steel tubes together is formed, the material characteristics are fully utilized, and the dead weight of a structural member can be greatly reduced.
In addition, preferably, in the embodiment of the present invention, the central column and the side columns are both concrete filled steel columns, so that a structure in which concrete and steel pipes bear force together can also be formed, and the self weight of the structural member is greatly reduced.
In addition, preferably, in the embodiment of the present invention, prefabricated reinforced concrete slabs (which can be used as a floor slab) are further laid on the upper surfaces of the first steel-concrete combination beam, the second steel-concrete combination beam and the platform structure; and arranging a surface layer reinforcing mesh on the prefabricated reinforced concrete plate, and pouring upper layer concrete to finally form an integral combined floor system.
The prefabricated reinforced concrete slab is a steel concrete composite laminated floor slab, so that a structure with the common stress of concrete and steel pipes can be formed, the dead weight of structural members is reduced, the construction cost is reduced, the construction speed is accelerated, and the overall firmness of the structure can be ensured.
In addition, preferably, in the embodiment of the invention, the roof canopy is of a light steel structure, so that the self weight of the structure can be effectively reduced, and the earthquake response of the structure can be reduced.
In addition, preferably, in the embodiment of the present invention, the first combination beam-column node 21 and the second combination beam-column node 24 are connected by a top flange pull-through-column insertion type combination frame structure node.
In the technical scheme of the invention, the single-column steel-concrete combined frame structure can be assembled in the following modes:
step a, erecting a steel pipe concrete independent column at the bottom, namely the pier column;
b, mounting a first combined beam-column node at the top of the pier column, then pouring concrete in the pier column, and pouring concrete in a core area of the first combined beam-column node;
c, splicing the steel beam part of the first steel-concrete combined beam with the first combined beam-column joint, and pouring concrete on the lower flange (namely the bottom of the accommodating cavity) of the first steel-concrete combined beam;
d, mounting longitudinal connecting steel beams at two ends of the first steel-concrete combined beam, and connecting the longitudinal connecting steel beams with other adjacent single-column steel-concrete combined frame structures, so that the first layers (namely the station hall layers) of the single-column steel-concrete combined frame structures can be longitudinally connected into a whole;
in the technical scheme of the invention, a space between the first steel-concrete composite beam and the second steel-concrete composite beam (including the first steel-concrete composite beam) can be called as a station hall layer;
step e, mounting a center pillar in the middle of the station hall layer (namely the middle of the first steel-concrete composite beam), and splicing the center pillar with the top of the joint of the first composite beam and the pillar; meanwhile, side columns are arranged at two ends of the station hall layer (namely two ends of the first steel-concrete combined beam);
f, mounting a second combined beam-column joint at the top of the middle column, and pouring concrete in the steel pipe of the middle column;
step g, splicing the steel beam part of the second steel-concrete combined beam with a second combined beam-column joint, simultaneously splicing two ends of the second steel-concrete combined beam with side columns at two ends of the first steel-concrete combined beam respectively, and pouring concrete in steel pipes of a core area of a lower flange (namely the bottom of the accommodating cavity) of the second steel-concrete combined beam, the side columns and the second combined beam-column joint;
step h, mounting longitudinal connecting steel beams at two ends (namely a lower interlayer) of the second steel-concrete combined beam, and connecting the longitudinal connecting steel beams with other adjacent single-column steel-concrete combined frame structures so as to longitudinally strengthen the integrity between the single-column steel-concrete combined frame structures;
in the technical scheme of the invention, a space between the second steel-concrete composite beam and the platform structure (excluding the second steel-concrete composite beam) can be called as a lower interlayer;
step i, installing the steel structure frame above the lower interlayer, wherein the specific sequence can be as follows: firstly, mounting a steel structure frame of a platform layer, and then longitudinally connecting steel beams of the mounting layers at two ends of the platform structure, thereby longitudinally connecting the platform layers of the single-column steel-concrete combined frame structure into a whole; then, a steel frame structure of the roof canopy, longitudinal connecting steel beams and cross supports (the cross supports are arranged between canopy columns and are only arranged in one span or two spans) are arranged;
in the technical scheme of the invention, the platform structure and the space between the platform structure and the roof canopy can be called as a platform layer;
step j, laying a floor slab on the upper surfaces of the first steel-concrete combined beam, the second steel-concrete combined beam and the platform structure, arranging a surface layer reinforcing mesh on the floor slab, and pouring upper layer concrete to finally form an integral combined floor system; the order of laying and pouring of the floor slab may be: a station platform layer, a lower interlayer and a station hall layer. The floor slabs should be laid from bottom to top; furthermore, the floor slabs should be laid at the following time: after the beams of each layer are assembled, the floor slabs of the same layer can be paved.
By the method, the rail transit elevated station can be assembled.
In addition, in the above embodiments of the present invention, the platform layer shown in fig. 1 to 3 is a form in which the track beam is located in the middle and the platform structure is located on both sides. Similarly, the technical solution of the present invention can also be applied to the form that the platform structure is located in the middle and the track beam is located on both sides, which is not described herein again. In addition, the laminated slab of the single-column steel-concrete combined frame structure can also be used for profiled steel sheet combined floors.
In summary, the single-column steel-concrete combined frame structure is adopted in the rail transit elevated station of the invention. Because the steel-concrete structure is used in the single-column steel-concrete combined frame structure, the single-column steel-concrete combined frame structure has the advantages of light dead weight, smaller component size than that of a traditional pure concrete structure, light and attractive structure, small influence on the landscape, better structural ductility and superior anti-seismic performance. In addition, when installing above-mentioned elevated station, saved processes such as full hall scaffold, component template, a large amount of reinforcement, can make each part of above-mentioned elevated station in the mill in advance, then transport the on-the-spot and directly assemble to can improve construction quality greatly, reduce construction period, reduce the time of occupying the road, reduce the influence to the environment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. An elevated station for rail transit, the elevated station comprising: a plurality of single column steel-concrete combined frame structures;
wherein, every single column steel-concrete composite frame structure all includes: the system comprises a pier column, a first steel-concrete combined beam, a second steel-concrete combined beam, a platform structure, a track beam and a roof canopy;
the top of the pier column is provided with a first combined beam column node;
the first steel-concrete combined beam is arranged at the top of the pier column through the first combined beam column joint;
the top of the first combined beam-column node is provided with a middle column; two ends of the first steel-concrete composite beam are provided with side columns; the top of the middle column is provided with a second combined beam-column node; the first combined beam-column node and the second combined beam-column node are connected by adopting a top flange pull-through-column interpolation type combined frame structure node;
the second steel-concrete combined beam is arranged on the tops of the middle column and the side column through the second combined beam-column joint;
the platform structure and the track beam are arranged above the second steel-concrete combined beam; two ends of the second steel-concrete combined beam are provided with supporting columns;
the roof canopy is arranged on the top of the support column;
the first steel-concrete composite beam and the second steel-concrete composite beam are both square steel pipe composite beams; the middle part of the square steel pipe combination beam is provided with an accommodating cavity, and concrete is poured at the bottom of the accommodating cavity and the joint of the accommodating cavity and the first combination beam-column joint or the second combination beam-column joint;
the first steel-concrete combined beam, the second steel-concrete combined beam and two ends of the platform structure are respectively provided with a corresponding longitudinal connecting steel beam;
two adjacent single-column steel-concrete combined frame structures are connected through corresponding longitudinal connecting steel beams.
2. The elevated station according to claim 1, characterized in that:
the pier column is a square steel tube concrete column.
3. The elevated station according to claim 1, characterized in that:
the middle column and the side columns are all steel pipe concrete columns.
4. The elevated station according to claim 1, characterized in that:
prefabricated reinforced concrete plates are further laid on the upper surfaces of the first steel-concrete combined beam, the second steel-concrete combined beam and the platform structure; and a surface layer steel bar net sheet is arranged on the prefabricated reinforced concrete plate, and upper layer concrete is poured to finally form an integral combined floor system.
5. The elevated station according to claim 1, characterized in that:
the roof canopy is of a light steel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710235612.2A CN106988423B (en) | 2017-04-12 | 2017-04-12 | Rail transit elevated station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235612.2A CN106988423B (en) | 2017-04-12 | 2017-04-12 | Rail transit elevated station |
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| CN106988423A CN106988423A (en) | 2017-07-28 |
| CN106988423B true CN106988423B (en) | 2022-08-30 |
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| Publication number | Publication date |
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| CN106988423A (en) | 2017-07-28 |
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