CN115262880B - L-shaped stair structure for non-column subway station - Google Patents
L-shaped stair structure for non-column subway station Download PDFInfo
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- CN115262880B CN115262880B CN202210935879.3A CN202210935879A CN115262880B CN 115262880 B CN115262880 B CN 115262880B CN 202210935879 A CN202210935879 A CN 202210935879A CN 115262880 B CN115262880 B CN 115262880B
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- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000035699 permeability Effects 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 20
- 238000010276 construction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000010006 flight Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
- E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
- E04F2011/021—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass
- E04F2011/0212—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete
- E04F2011/0214—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of stone or stone like materials, e.g. concrete; mainly of glass mainly of concrete cast in situ
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention provides an L-shaped stair structure for a non-column subway station, and belongs to the field of urban rail transit engineering. The two corner platform upright posts in the prior art are replaced by the stair cantilever beam structure, the corner platform is supported on the two corner platform upright posts adjacent to one side of the lower bench, the cantilever capability of the stair cantilever beam structure is improved through stair stringers on two sides of the lower bench, the structural integrity of the L-shaped stair is further enhanced through the hidden beams of the stair plates on two sides of the upper bench, the corner platform upright posts on the lower part of the lower bench and the bottom upright posts of the lower bench, the safety and reliability of the L-shaped stair structure can be ensured, the space on the lower part of the corner platform is prevented from being occupied by the corner platform upright posts completely, the sealing area of a platform public area is effectively reduced, the transverse passing width of the platform is increased, the permeability of the sight line of the platform layer is improved, and the sense of depression of the subway platform is reduced.
Description
Technical Field
The invention belongs to the field of urban rail transit engineering, and particularly relates to an L-shaped stair structure for a non-column subway station.
Background
At present, the urban rail transit underground station is generally a single-layer multi-span multi-layer multi-span railway station with columns. The railway station is unfavorable for flexible arrangement of internal equipment and facilities and full utilization of station space, the problem of the railway station is not existed, and the public area of the station platform layer of the railway station is large, the visual field is wide, and the passengers are not pressed, so that the subway railway station in each city is increased year by year in recent years.
At present, in a subway station, a double-escalator from top to bottom is generally arranged at one end from a station hall layer to a platform layer, an ascending escalator and a straight running stair are arranged at the other end, and an elevator and an L-shaped stair are arranged in the middle of the station so as to meet the fire evacuation requirement. The L-shaped stair is provided with a rest platform and a corner platform, and four stair posts are respectively arranged at the lower parts of the rest platform and the corner platform to support the whole L-shaped stair, so that the vertical structural strength of the L-shaped stair is ensured. This approach requires more space to be occupied at the station floor, and reduces the area of the public area of the station floor, which is contrary to the goal of increasing the area of the public area of the station as much as possible and improving the comfort of passengers. The scholars invent an L-shaped stair structure for supporting a rest platform on a station structural column through a stair cantilever beam, but the L-shaped stair structure is only applicable to a station with a column, and cannot be applied to a station without the column. The scholars also suggest that all the stair posts under the corner platform are eliminated by hanging the rest platform below the station middle plate by adopting a hanging structure, and through detailed analysis, the stair plate with the structural form can bear larger tensile force, the thickness of the stair plate needs to be increased, the reinforcement of the stair plate is reinforced, and the engineering investment is also increased; the suspension structure bears larger vertical tension, and the stress state is also not ideal; in addition, the suspension structure is in a post-pouring mode, is greatly influenced by a construction process, is difficult to ensure construction quality, and has the possibility of influencing the durability of the stairs.
In summary, it is necessary to develop an L-shaped stair structure for a non-column subway station, which can increase the area of a public area of a station platform layer by canceling part of upright posts, improve riding comfort of passengers, ensure safety and durability of the L-shaped stair structure, and ensure convenient construction and save cost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides an L-shaped stair structure for a non-column subway station, which can effectively solve the problems, reduce the sealing area of a public area of a station, increase the transverse passing width of the station, improve the permeability of the sight line of a station layer, reduce the pressing sense of a subway station, ensure the safety and durability of the L-shaped stair structure, and also ensure convenient construction and cost saving.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the L-shaped stair structure for the rodless subway station is used for connecting a hall layer and a platform layer of the rodless subway station and comprises an upper stair section connected with a hall layer A hole Bian Ciliang, a lower stair section connected with a platform plate of a platform layer B, a corner platform connected with the upper stair section and the lower stair section, a stair cantilever beam and a corner platform edge sealing beam below the corner platform, stair plate hidden beams arranged along two sides of the upper stair section, stair longitudinal beams, corner platform cross beams, lower stair section platform cross beams, corner platform stand columns, lower stair section platform stand columns and lower stair section bottom stand columns.
Two corner platform upright posts are arranged at the lower part of one side of the corner platform, which is close to the lower stair section; the stair cantilever beams are cast and formed below the corner platform along the width direction of the upper stair section, the fixed ends of the two stair cantilever beams are connected to the top of the corner platform upright post, and the corner platform edge sealing beam is arranged between the free ends of the two stair cantilever beams; the blind beams of the ladder plate are arranged on two sides of the width direction of the upper bench along the length direction of the upper bench; the stair longitudinal beams are arranged on two sides of the width direction of the lower bench along the length direction of the lower bench, and the upper ends of the stair longitudinal beams are also connected to the tops of the corner platform upright posts, so that the overhanging capability of the stair cantilever structure is improved, and the stair cantilever is ensured to be stressed safely and reliably; the L-shaped stair is characterized in that two lower stair section platform stand columns and two lower stair section bottom stand columns are respectively arranged, the tops of the two lower stair section platform stand columns and the tops of the two lower stair section platform stand columns are connected with the stair longitudinal beams, and the number of the lower stair section platform stand columns is reduced as much as possible on the premise of ensuring the safety of the lower stair section.
As the preferable scheme, L-shaped stair structure comprises two stair cantilever beams, two stair longitudinal beams, a corner platform beam, a lower stair section platform beam, a corner platform edge sealing beam and two stair plate hidden beams.
As an optimal scheme, the bottoms of the two corner platform upright posts and the two lower bench platform upright posts of the L-shaped stair penetrate through the platform plate to be supported on the station bottom plate, and the bottom ends of the lower bench bottom upright posts are also supported on the station bottom plate.
As a preferable scheme, the L-shaped stair is provided with the corner platform cross beams between the two corner platform upright post tops, and the lower bench platform cross beams are arranged between the lower bench platform upright post tops, so that the structural rigidity and the integrity of the L-shaped stair in the width direction of the lower bench are improved.
As the preferable scheme, the ladder plate hidden beams on two sides of the upper ladder section of the L-shaped stair are internally provided with hidden beam upper longitudinal ribs and hidden beam lower longitudinal ribs which are vertically symmetrical and longitudinally communicated, the hidden beam waist ribs are arranged on the side edges of the ladder plate hidden beams according to the requirements, and the ladder plate hidden beams are further provided with hidden beam stirrups for wrapping the hidden beam upper longitudinal ribs, the hidden beam lower longitudinal ribs and the hidden beam waist ribs so as to strengthen the stress performance of the upper ladder section.
As an optimal scheme, the distance H1 between the bottom of the stair cantilever beam and the platform plate is not smaller than 2.4m, so that the permeability of the sight line of the platform layer B is improved, and the pressing sense of the platform layer B is reduced.
Preferably, the distance H2 between the bottom of the hole edge main beam and the top of the lower ladder section is not less than 2.4m; the distance H3 between the side edge of the hole edge main beam and the stair hole is not smaller than 1m, so that the vertical height of the L-shaped stair meets the passing and standard requirements.
Preferably, the lower bench is supported on the stair stringer, and the thickness of the lower bench is not more than 150mm, so as to save engineering materials and manufacturing cost.
Preferably, a vertical elevator with a transparent shaft is arranged between the upper bench and the lower bench, and the vertical elevator is closely arranged on the upper bench and the lower bench.
As the preferred scheme, go up bench, corner platform, lower bench, stair cantilever beam, stair longeron, stair crossbeam, ladder board hidden beam, the corner platform stand and the bench stand of lower bench above the platform board adopt reinforced concrete material integral type to pour, increase the linking ability between each component of L type stair structure, improve L type stair structure's wholeness.
In general, the advantages of the invention are: in the L-shaped stair structure for the designed non-column subway station, the stair cantilever beam structure is arranged to replace two corner platform upright posts in the prior art, the corner platform is supported on the two corner platform upright posts adjacent to one side of a lower bench, the overhanging capability of the stair cantilever beam structure is improved through stair stringers on two sides of the lower bench, the stress performance of the whole stair structure is enhanced through stair plate hidden beams on two sides of an upper bench, the L-shaped stair structure can be ensured to be safe and reliable, the space at the lower part of the corner platform is prevented from being fully occupied by the corner platform upright posts, the sealing area of a platform public area is reduced, the transverse passing width of the platform is increased, the permeability of the sight line of a platform layer is improved, and the sense of depression of the subway platform is reduced.
Drawings
The relevant pictorial representations are supplemented herein to more clearly, more specifically describe the basic content, basic features, and basic connotation of the present patent.
Fig. 1 is a plan view illustrating an L-shaped stair structure for a rodless subway station according to a preferred embodiment of the present invention, from a hall floor of the subway station.
Fig. 2 is a plan view of the L-shaped stair structure for the rodless subway station in fig. 1, overlooked downward from a subway station platform layer.
Fig. 3 is a sectional view of the L-shaped stair structure for a rodless subway station of the present invention along A-A.
Fig. 4 is a sectional view of the L-shaped stairway structure for a rodless subway station according to the present invention along B-B (rotated 90 ° clockwise).
Fig. 5 is a schematic diagram of reinforcement of a cross section of a ladder plate hidden beam of the L-shaped stair structure for a non-column subway station.
Reference numerals: hall floor a, floor B, hall middle plate 11, stairway hole 12, hole side girder 13, hole side secondary beam 14, platform plate 15, station floor 16, vertical elevator 17, upper bench 21, corner platform 22, lower bench 23 (first lower bench 231, lower bench 232, second lower bench 233), landing cantilever beam 24 (inner cantilever beam 241, outer cantilever beam 242), stairway longitudinal beam 25 (first stairway inner longitudinal beam 251, first stairway outer longitudinal beam 252, inner stairway side longitudinal beam 253, outer stairway side longitudinal beam 254, second stairway side longitudinal beam 255, second stairway outer longitudinal beam 256), corner platform column 26 (inner corner platform column 261, outer corner platform column 262), lower bench column 27 (inner lower bench column 271, outer lower bench column 272), corner platform beam 28, lower bench platform beam 29, corner platform edge sealing beam 30, hidden beam 31, lower bench bottom column 32, hidden beam upper longitudinal rib 41, hidden beam lower longitudinal rib 42, hidden beam stirrup 5743, distance between the bottom of the hole side girder Liang Yao, hole side girder bottom side girder 5744, hole bottom hole side girder 15, and the vertical distance H12 to the bottom of the hole side girder 13, H, hole side girder 2, bottom side girder 13, bottom hole side girder 2.
Detailed Description
For a better understanding of the present invention, the present invention will be further described with reference to the drawings and specific examples.
The invention aims to overcome the defects in the prior art, and provides an L-shaped stair structure for a non-column subway station, which can effectively solve the problems, wherein a stair cantilever beam structure is adopted to replace two corner platform upright posts in the prior art, a corner platform is supported on the two corner platform upright posts adjacent to one side of a lower bench, the overhanging capability of the stair cantilever beam structure is improved through stair stringers on two sides of the lower bench, the stress performance of the whole stair structure is enhanced through hidden beams of stair plates on two sides of the upper bench, the lower space of the L-shaped stair corner platform is prevented from being fully occupied by the corner platform upright posts, the sealing area of a platform public area is reduced, the usable area of the platform is increased, the transverse passing width of the platform is increased, the permeability of the sight of a platform layer is improved, and the pressing sense of the subway platform is reduced.
Referring to fig. 1 to 4 in combination, the L-shaped stairway structure for a non-column subway station according to the preferred embodiment of the present invention includes a hall plate 11, a stairway hole 12, a hole side main beam 13, a hole side sub beam 14, a platform plate 15, a station floor 16, a vertical elevator 17, and an L-shaped stairway. The middle plate 11, the platform plate 15 and the station bottom plate 16 are arranged in parallel, the middle plate 11 of the station is provided with a stair hole 12 at the position of the L-shaped stair and the vertical elevator 17, and the side edge of the stair hole 12 is provided with a hole edge main beam 13 and a hole edge secondary beam 14. The L-shaped stairs are arranged between the station hall middle plate 11 and the platform plate 15 of the subway station and are communicated with the station hall layer A and the platform layer B of the non-column subway station.
The L-shaped stair comprises an upper bench 21 connected with a hole edge secondary beam 14 of a hall floor, a lower bench 23 connected with a platform plate 15 of a platform floor B, a corner platform 22 for connecting the upper bench 21 and the lower bench 23, a stair cantilever beam 24 below the corner platform 22, a corner platform edge sealing beam 30, a stair plate hidden beam 31 arranged along the length direction of the upper bench 21, a stair longitudinal beam 25 arranged along the length direction of the lower bench 23, a corner platform cross beam 28 and a lower bench platform cross beam 29 arranged along the width direction of the lower bench 25, a corner platform upright post 26 and a lower bench platform upright post 27.
The stair cantilever beam 24 stiff end that corner platform 22 below set up is connected at corner platform stand 26 top, and the free end is connected with corner platform edge banding roof beam 30, specifically: the fixed end of the inner cantilever beam 241 is connected with the top of the inner upright 261 of the corner platform, the fixed end of the outer cantilever beam 242 is connected with the top of the outer upright 262 of the corner platform, and a corner platform edge sealing beam 30 is arranged between the free ends of the inner cantilever beam 241 and the outer cantilever beam 242. The structural dimensions of the stair cantilever beam 24 are required to meet the actual structural strength requirements.
The ladder plate hidden beams 31 are arranged on two sides of the upper ladder section 21 along the length direction of the upper ladder section 21, the tops of the ladder plate hidden beams 31 are connected with the hole edge secondary beams 14, the bottoms of the ladder plate hidden beams 31 are connected with the inner side cantilever beams 241 at the lower part of the corner platform 22, hidden beam upper longitudinal ribs 41, hidden beam lower longitudinal ribs 42, hidden beam stirrups 43 and hidden beam waist ribs 44 are arranged in the ladder plate hidden beams 31, the specifications and the numbers of the hidden beam upper longitudinal ribs 41 and the hidden beam lower longitudinal ribs 42 are the same, and the ladder plate hidden beam stirrups 43 wrap the hidden beam upper longitudinal ribs 41, the hidden beam lower longitudinal ribs 42 and the hidden beam waist ribs 44 so as to enhance the stress performance of the upper ladder section 21 and improve the structural integrity of the whole L-shaped stair.
Stair longeron 25 sets up the both sides of hypoid 23 along hypoid 23 length direction, and stair longeron 25's lower extreme is connected with platform board 15, and the bottom sets up two hypoid bottom stands 32, and the upper end is connected with corner platform stand 26 top, and the centre is connected with hypoid platform stand 27, specifically does: the bottom ends of the first longitudinal beam 251 on the inner side of the stairs and the first longitudinal beam 252 on the outer side of the stairs are connected with the platform plate 15; the top end of the second longitudinal beam 255 on the inner side of the stair is connected with the top of the upright post 261 on the inner side of the corner platform, and the top end of the second longitudinal beam 256 on the outer side of the stair is connected with the top of the upright post 261 on the inner side of the corner platform; the bottom end of the second stair inner side girder 255 and one end of the inner stair platform side girder 253 are connected with the top of the inner lower stair platform upright 271, and the bottom end of the second stair outer side girder 256 and one end of the outer stair platform side girder 254 are connected with the top of the outer lower stair platform upright 272; the top end of the first inner side rail 251 is connected to the other end of the inner side rail 253, and the top end of the first outer side rail 252 is connected to the other end of the outer side rail 254.
A corner platform beam 28 is disposed between the top of the corner platform inner side column 261 and the corner platform outer side column 262, and a lower bench platform beam 29 is disposed between the top of the lower bench platform inner side column 271 and the lower bench platform outer side column 272 to increase the rigidity and structural integrity of the L-shaped staircase 20 in the width direction of the lower bench 23.
The lower landing leg 23 is supported on a lower stair stringer 25, specifically: along the width direction of the lower bench 23, both ends of the first lower bench 231 are supported on the tops of the stair inner side first stringers 251 and the stair outer side first stringers 252, respectively; both ends of the lower landing 232 are supported on top of the landing inner side rail 253 and landing outer side rail 254, respectively; both ends of the second lower stair section 233 are respectively supported at the tops of the stair inner side second longitudinal beam 255 and the stair outer side second longitudinal beam 256; the thickness of the lower stair section 23 is not more than 150mm, so that engineering materials and manufacturing cost are saved.
The bottoms of the corner platform upright 26 and the lower bench platform upright 27 pass through the station platform plate 15 and then are supported on the station bottom plate 16, and the bottom ends of the lower bench bottom upright 32 are also supported on the station bottom plate 16.
The upper bench 21, the corner platform 22, the lower bench 23, the stair cantilever beam 24, the stair longitudinal beam 25, the corner platform cross beam 28, the lower bench cross beam 29, the corner platform edge sealing beam 30, the stair board hidden beam 31, the corner platform upright post 26 and the lower bench upright post 27 above the top surface of the platform board 15 are integrally poured by adopting reinforced concrete materials, so that the connection capability among all components of the L-shaped stair is improved, and the integrity of the L-shaped stair is improved.
The distance H1 between the bottom of the stair cantilever beam 24 and the platform plate 15 is not smaller than 2.4m, so that the sight permeability of the platform layer B is improved, and the pressing sense of the subway platform layer B is reduced; the distance H2 between the bottom of the hole side main beam 13 and the lower bench platform 232 is not less than 2.4m, and the distance H3 between the side edge of the hall layer A hole Bian Zhuliang and the stair hole 12 is not less than 1m, so that the vertical height above the top surface of the L-shaped stair structure can meet the passing and standard requirements.
A vertical elevator 17 including a transparent hoistway is disposed between the upper and lower flights 21 and 23, and the vertical elevator 17 is disposed immediately adjacent to the upper and lower flights 21 and 23.
It should be understood that the above-described embodiments are only for explaining the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.
Claims (6)
1. The utility model provides a no post subway L type stair structure for station, include last bench (21) that are connected with bench layer (A) hole limit secondary beam (14), lower bench (23) that are connected with platform layer (B) bench board (15), corner platform (22) of going up bench (21) and lower bench (23) are connected, stair cantilever beam (24) and corner platform edge beam (30) under corner platform (22), ladder board hidden beam (31) of arranging along last bench (21) both sides, stair longeron (25), corner platform crossbeam (28) and lower bench platform crossbeam (29) of arranging along lower bench (23) both sides, corner platform stand (26), lower bench platform stand (27) and lower bench bottom stand (32), its characterized in that:
two corner platform upright posts (26) are arranged at the lower part of one side of the corner platform (22) close to the lower stair section (23); the stair cantilever beams (24) are formed below the corner platform (22) in a pouring mode along the width direction of the upper stair section (21), fixed ends of the two stair cantilever beams (24) are connected to the tops of the corner platform upright posts (26), and the corner platform edge sealing beams (30) are arranged between the free ends of the two stair cantilever beams (24); the ladder plate hidden beams (31) are arranged on two sides of the upper ladder section (21) in the width direction along the length direction of the upper ladder section (21); the stair longitudinal beams (25) are arranged on two sides of the width direction of the lower stair section (23) along the length direction of the lower stair section (23), and the upper ends of the stair longitudinal beams (25) are connected to the tops of the corner platform upright posts (26) so as to strengthen the overhanging capacity of the stair cantilever beams (24); the two lower bench stand columns (27) and the two lower bench stand columns (32) of the L-shaped stair are respectively arranged, and the tops of the two lower bench stand columns are connected with the stair longitudinal beam (25);
the L-shaped stair is characterized in that a corner platform cross beam (28) is arranged between the tops of two corner platform upright posts (26), and a lower bench platform cross beam (29) is arranged between the tops of lower bench platform upright posts (27) so as to increase the structural rigidity and the integrity of the L-shaped stair in the width direction of a lower bench (23);
the ladder plate hidden beams (31) on two sides of the upper ladder section (21) of the L-shaped stair are internally provided with hidden beam upper longitudinal ribs (41) and hidden beam lower longitudinal ribs (42) which are vertically symmetrical and longitudinally communicated, the side edges of the ladder plate hidden beams (31) are provided with hidden beam waist ribs (44), and the ladder plate hidden beams (31) are further provided with hidden beam stirrups (43) to wrap the hidden beam upper longitudinal ribs (41), the hidden beam lower longitudinal ribs (42) and the hidden beam waist ribs (44).
2. The L-shaped stairway structure for a rodless subway station according to claim 1, wherein: the L-shaped stair comprises two stair cantilever beams (24), two stair longitudinal beams (25), a corner platform cross beam (28), a lower stair section platform cross beam (29), a corner platform edge sealing beam (30) and two stair plate hidden beams (31).
3. The L-shaped stair structure for a rodless subway station according to any one of claims 1 to 2, wherein: the bottoms of the two corner platform upright posts (26) and the two lower bench platform upright posts (27) of the L-shaped stair penetrate through the platform plate (15) to be supported on the station bottom plate (16), and the lower bench bottom upright posts (32) are supported on the station bottom plate (16).
4. The L-shaped stair structure for a rodless subway station according to any one of claims 1 to 2, wherein: the distance (H1) between the bottom of the stair cantilever beam (24) and the platform plate (15) is not smaller than 2.4m, so that the permeability of the sight of the platform layer (B) is improved, and the pressing sense of the platform layer (B) is reduced.
5. The L-shaped stair structure for a rodless subway station according to any one of claims 1 to 2, wherein: the distance (H2) between the bottom of the hole edge main beam (13) and the top of the lower ladder section (23) is not less than 2.4m; the distance (H3) between the side edge of the hole edge main beam (13) and the stair hole (12) is not smaller than 1m, so that the vertical height above the top of the L-shaped stair can meet the passing and standard requirements.
6. The L-shaped stair structure for a rodless subway station according to any one of claims 1 to 2, wherein: a vertical elevator (17) comprising a transparent shaft is arranged between the upper bench (21) and the lower bench (23), and the vertical elevator (17) is arranged close to the upper bench (21) and the lower bench (23).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935879.3A CN115262880B (en) | 2022-08-05 | 2022-08-05 | L-shaped stair structure for non-column subway station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935879.3A CN115262880B (en) | 2022-08-05 | 2022-08-05 | L-shaped stair structure for non-column subway station |
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| CN115262880A CN115262880A (en) | 2022-11-01 |
| CN115262880B true CN115262880B (en) | 2023-10-31 |
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| JPH06180052A (en) * | 1992-12-14 | 1994-06-28 | Natl House Ind Co Ltd | Landing structure of stairway |
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| CN106013637A (en) * | 2016-07-22 | 2016-10-12 | 中铁第四勘察设计院集团有限公司 | L-shaped stair structure for subway station |
| CN206289896U (en) * | 2016-12-28 | 2017-06-30 | 北京宏联众轻钢结构房屋有限公司 | A kind of matching used outer straight stair of encorbelmenting in box house |
| CN111851880A (en) * | 2020-08-10 | 2020-10-30 | 重庆大学 | Integrally cooperative stress platform end non-column steel structure stair |
| CN217079457U (en) * | 2022-03-11 | 2022-07-29 | 中电建成都建设投资有限公司 | A monospar formula reinforced concrete stair for in subway station |
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2022
- 2022-08-05 CN CN202210935879.3A patent/CN115262880B/en active Active
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| CN111851880A (en) * | 2020-08-10 | 2020-10-30 | 重庆大学 | Integrally cooperative stress platform end non-column steel structure stair |
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| CN115262880A (en) | 2022-11-01 |
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