CN212535710U - A no post structure that is used for single hunch to stride secretly dig station greatly - Google Patents
A no post structure that is used for single hunch to stride secretly dig station greatly Download PDFInfo
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- CN212535710U CN212535710U CN202021052396.1U CN202021052396U CN212535710U CN 212535710 U CN212535710 U CN 212535710U CN 202021052396 U CN202021052396 U CN 202021052396U CN 212535710 U CN212535710 U CN 212535710U
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Abstract
The utility model is suitable for a secretly dig the relevant technical field in station, provide a no post structure that is used for single hunch to stride secretly dig the station greatly, including two linings of hunch cover and inside building staircase structure, the lower extreme fixedly connected with hunch foot joist of two linings of hunch cover, the outside medium plate sets up the left and right sides at the inboard medium plate, the edge of opening a hole of inboard medium plate passes through medium plate hole boundary beam fixed connection, the surface of outside medium plate and the surface of concrete bracing all with invert and side wall structure zonulae occludens, the upper end of invert and side wall structure is connected with the lower extreme integration of two linings of hunch cover, the station platen is installed to the upper end on invert backfill layer. This a no post structure that is used for single hunch to stride undercut station greatly increases platform space utilization, optimizes medium plate structural thickness simultaneously, effectively reduces medium plate structural engineering cost to and simplified the form of arranging of well diaphragm orifice boundary beam, the bracing adopts shaped steel concrete's structural style, the safety and stability of guarantee structure.
Description
Technical Field
The utility model relates to a relevant technical field in undercut station specifically is a no post structure that is used for single hunch to stride undercut station greatly.
Background
The subway station construction technology is mature day by day, the convenience of people is improved by the passing transportation of subways, the congestion degree of road traffic is reduced, and for the construction of large-span subway stations, a frame structure is mainly used at present, single-column or double-column structures are arranged in the stations, and a longitudinal beam system is erected.
However, the structural form causes inconvenience for later-stage operation, such as difficulty in pipeline crossing, occupation of platform space by frame columns, influence on the sight of pedestrians, poor attractiveness, difficulty in meeting the technical requirements of subway construction which are different day by day, and influence on a certain degree on more harmonious and high-quality operation of subways, so that a column-free structure for a single-arch large-span underground excavation station is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a no post structure that is used for single hunch to stride secretly dig station greatly to general frame construction who proposes in solving above-mentioned background art causes a great deal of inconvenience to the later stage operation, if the pipeline passes through the difficulty, the frame post occupies the platform space, influences pedestrian's sight, and the aesthetic property is relatively poor, is difficult to satisfy present day and new and different subway construction technical requirement, causes the problem of the influence of certain degree to the more harmonious high-quality operation of subway.
In order to achieve the above object, the utility model provides a following technical scheme: a non-column structure for a single-arch large-span underground excavation station comprises an arch cover two-lining and an inner staircase structure, wherein the lower end of the arch cover two-lining is fixedly connected with arch foot joists, outer middle plates are arranged on the left side and the right side of an inner middle plate, the inner middle plate and the outer middle plate are integrally and fixedly connected through a middle plate reinforcing longitudinal beam, the opening edge of the inner middle plate (4) is fixedly connected with a middle plate hole side beam (3), the lower end of the outer middle plate is fixedly connected with a concrete diagonal, the outer surface of the outer middle plate and the outer surface of the concrete diagonal are both tightly connected with an inverted arch and side wall structure, the upper end of the inverted arch and side wall structure is integrally connected with the lower end of the arch cover two-lining, the lower end of the inverted arch and side wall structure is fixedly connected with a platform plate, an inverted arch backfill layer is arranged below the platform plate, and the upper part of the inner staircase structure is installed and, the concrete diagonal brace is connected with the side wall reinforcing longitudinal beam at the joint of the inverted arch and the side wall structure, and a rail top air duct is fixedly mounted at the lower end of the concrete diagonal brace.
Preferably, the arch cover second lining is of an arch structure, the arch cover second lining and the arch foot joist form an integrated structure, and the arch cover second lining, the arch foot joist, the inverted arch and side wall structure and the inverted arch backfill layer form a square structure.
Preferably, the thickness dimension of the outer middle plate is 200mm, the thickness dimension of the inner middle plate is 350mm, the width dimension of the inner middle plate is equal to the distance dimension between the left single body and the right single body of the rail-top air duct, and the width dimension of the rail-top air duct is not smaller than the horizontal projection width dimension of the concrete diagonal brace.
Preferably, the outer middle plate is arranged in a bilateral symmetry mode about the central axis of the inner middle plate, and the middle plate and the inner middle plate form an integrated connecting structure through the middle plate reinforcing longitudinal beams.
Preferably, the concrete bracing is strengthened the steel sheet by the side wall outside atress muscle, the side wall, the main muscle of bracing atress, the compound stirrup of bracing, bracing H shaped steel, H shaped steel web hole, steel sheet is strengthened to medium plate upper portion atress muscle and medium plate and is constituted, welded connection between side wall outside atress muscle and the side wall enhancement steel sheet, the tip fixed connection of steel sheet and bracing H shaped steel is strengthened to the side wall, the upper end and the medium plate of bracing H shaped steel strengthen steel sheet welded connection, the upper end and the medium plate upper portion atress muscle fixed connection of steel sheet are strengthened to the medium plate, H shaped steel web hole has been seted up in running through to the surface of bracing H shaped steel, the inside through connection in H shaped steel web hole has the compound stirrup of bracing, the main muscle of bracing atress passes through the compound stirrup winding of bracing and connects the surface at bracing H.
Preferably, the middle plate reinforcing steel plate is fixedly connected with the outer middle plate through a middle plate upper stress rib, the middle plate reinforcing steel plate and the side wall reinforcing steel plate are arranged in a left-right symmetrical mode relative to the inclined strut H-shaped steel, and the side wall reinforcing steel plate is fixedly connected with the inverted arch and the side wall structure through a side wall outer stress rib.
Compared with the prior art, the beneficial effects of the utility model are that: the column-free structure for the single-arch large-span underground excavation station has the advantages that the platform layer is completely column-free, the space utilization rate of the platform is increased, the thickness of the middle plate structure is optimized, the construction cost of the middle plate structure is effectively reduced, the arrangement form of hole side beams of the middle plate is simplified, and the structural form of section steel concrete is adopted, so that the safety and stability of the structure are guaranteed;
1. compared with the traditional frame structure system, the platform plate of the structure has no columns, so that the traveling obstruction of passengers is reduced, the space utilization rate on the platform plate is increased, the visual field of the passengers is ensured to be wide, the subway station is attractive and elegant, and the development direction of rail transit engineering is met;
2. the thickness of the middle plate structure at the inner side is optimized, the number of the stress ribs at the upper part of the middle plate is reduced, and the construction cost of the middle plate structure is effectively reduced;
3. the structural system simplifies the arrangement form of the middle plate hole edge beam, reduces unnecessary work waste of the middle plate hole edge beam, and reduces the construction cost of the middle plate hole edge beam;
4. adopt shaped steel concrete's structural style, make board under bracing structure exquisite, do not occupy subway station usage space, effectively improve the bearing capacity of concrete bracing, the safety and stability of guarantee structure.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall split structure of the present invention;
fig. 3 is the schematic view of the internal splitting structure of the inclined strut of the present invention.
In the figure: 1. covering the arch with a second lining; 2. an arch foot joist; 3. the middle plate hole edge beam; 4. an inner middle plate; 5. an outer middle plate; 6. the middle plate reinforces the longitudinal beam; 7. concrete diagonal bracing; 8. reinforcing the longitudinal beam by the side wall; 9. a rail top duct; 10. An inverted arch and side wall structure; 11. a station board; 12. an inverted arch backfill layer; 13. an interior building staircase structure; 14. Stress ribs on the outer side of the side wall; 15. side wall reinforcing steel plates; 16. the main stress rib of the inclined strut; 17. the diagonal bracing composite stirrup; 18. bracing H-shaped steel; 19. h-shaped steel web holes; 20. the upper part of the middle plate is provided with a stress rib; 21. the middle plate reinforces the steel plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a non-column structure for a single-arch large-span underground excavation station comprises an arch cover secondary lining 1, arch foot joists 2, a middle plate hole side beam 3, an inner middle plate 4, an outer middle plate 5, a middle plate reinforcing longitudinal beam 6, concrete diagonal braces 7, side wall reinforcing longitudinal beams 8, a rail top air duct 9, inverted arch and side wall structures 10, a platform plate 11, an inverted arch backfill layer 12 and an inner building staircase structure 13, wherein the lower end of the arch cover secondary lining 1 is fixedly connected with the arch foot joists 2, the outer middle plates 5 are arranged on the left side and the right side of the inner middle plate 4, the inner middle plate 4 and the outer middle plate 5 are fixedly connected in an integrated manner through the middle plate reinforcing longitudinal beam 6, the opening edge of the inner middle plate 4 is fixedly connected through the middle plate hole side beam 3, the lower end of the outer middle plate 5 is fixedly connected with the concrete diagonal braces 7, the outer surface of the outer middle plate 5 and the outer surface of the concrete diagonal braces 7 are both tightly connected, the upper end of an inverted arch and side wall structure 10 is integrally connected with the lower end of an arch cover secondary lining 1, the lower end of the inverted arch and side wall structure 10 is fixedly connected with an inverted arch station platform plate 11, an inverted arch backfill layer 12 is arranged below the platform plate 11, an inner building escalator structure is arranged on the upper portion of the platform plate 11, a side wall reinforcing longitudinal beam 8 is connected with the joint of a concrete inclined strut 7 and the inverted arch and side wall structure 10, and a rail top air channel 9 is fixedly arranged at the lower end of the concrete inclined strut 7.
As shown in fig. 1 and 2, the arch cover secondary lining 1 is in an arch structure, the arch cover secondary lining 1 and the arch joist 2 form an integrated structure, and the arch cover secondary lining 1, the arch joist 2, the inverted arch and side wall structure 10 and the inverted arch backfill layer 12 form a structure shaped like a Chinese character kou, so that the strength of the arch cover secondary lining 1 and the integral aesthetic property are improved, and the use is convenient, for example, in fig. 1 and 2, the thickness of the outer middle plate 5 is 200mm, the thickness of the inner middle plate 4 is 350mm, the width of the inner middle plate 4 is equal to the distance between the left and right monomers of the rail top air duct 9, and the width of the rail top air duct 9 is not less than the horizontal projection width of the concrete diagonal brace 7, so that the concrete diagonal brace 7 is shielded conveniently, and the integral aesthetic property is maintained.
As in fig. 2, the outer middle plate 5 is arranged in bilateral symmetry with respect to the central axis of the inner middle plate 4, and the middle plates 5 and the inner middle plate 4 are connected to form an integrated connection structure by the middle plate reinforcing longitudinal beams 6, so that the thickness of the inner middle plate 4 is reduced, and the strength of the inner middle plate 4 is enhanced, thereby facilitating use.
As shown in the figures 2 and 3, the concrete diagonal brace 7 is composed of a lateral wall outer stress rib 14, a lateral wall reinforced steel plate 15, a diagonal brace stress main rib 16, a diagonal brace composite stirrup 17, a diagonal brace H-shaped steel 18, an H-shaped steel web hole 19, a middle plate upper stress rib 20 and a middle plate reinforced steel plate 21, wherein the lateral wall outer stress rib 14 is connected with the lateral wall reinforced steel plate 15 in a welding way, the lateral wall reinforced steel plate 15 is fixedly connected with the end part of the diagonal brace H-shaped steel 18, the upper end of the diagonal brace H-shaped steel 18 is connected with the middle plate reinforced steel plate 21 in a welding way, the upper end of the middle plate reinforced steel plate 21 is fixedly connected with the middle plate upper stress rib 20, the outer surface of the diagonal brace H-shaped steel 18 is provided with an H-shaped steel web hole 19 in a penetrating way, the inner part of the H-shaped steel web hole 19 is connected with the diagonal brace composite stirrup 17 in a penetrating way, the diagonal, connect outside medium plate 5 and invert and side wall structure 10, improve the steady force, thereby avoid installing the stand, improve the space range, avoid sheltering from the sight, like in figure 2 and figure 3 medium plate reinforcing steel plate 21 passes through medium plate upper portion atress muscle 20 and 5 fixed connection in the outside medium plate, and medium plate reinforcing steel plate 21 and side wall reinforcing steel plate 15 set up about bracing H shaped steel 18 bilateral symmetry, and side wall reinforcing steel plate 15 passes through side wall outside atress muscle 14 and invert and 10 fixed connection of side wall structure, be convenient for support outside medium plate 5, improve outside medium plate 5's intensity, facilitate the use.
The working principle is as follows: when the column-free structure for the single-arch large-span underground excavation station is used, firstly, the excavation support of the arch part of the upper half section of the station is completed, the arch joist 2 is constructed along the longitudinal direction of the whole station, then the arch part secondary lining 1 structure is constructed, the arch joist 2 is supported on the arch to form the arch cover structure, then, the excavation support of the lower half section of the station is completed, the side wall structure below the inverted arch structure and the concrete diagonal brace 7 is constructed, then, the full framing is laid above the inverted arch, the reinforcing steel bars are bound, the side wall reinforcing longitudinal beam 8 and the rail top air duct 9 are constructed, then, the concrete diagonal brace 7 is constructed, the section steel concrete brace is adopted in the complicated stress section, H-shaped steel is firstly erected, the side wall reinforcing steel plate 15 is welded and abutted and fixed with the side wall stress rib 14, then, the diagonal brace stress main rib 16 and the diagonal brace composite hoop rib 17 are constructed around the section steel, finally, the concrete is poured and formed, the middle, with middle plate upper portion atress muscle 20 butt, longeron 6 is strengthened to ligature reinforcing bar construction middle plate, middle plate hole limit roof beam 3, the structure of inboard middle plate 4 and outside middle plate 5, and pour the structure of side wall and two linings of hunch cover 1 and link to each other into whole, the structure of construction station platen 11 at last, construction inverted arch backfill layer 12, at inside staircase structure 13 of construction, the upper end is connected with the hole limit roof beam anchor, realize the intercommunication on station room and the platform layer, this is exactly the whole process that the no post structure that is used for single-arch stride undercut station used.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a no post structure that is used for single hunch to stride secretly to dig station greatly, includes two linings of hunch lid (1) and inside building staircase structure (13), its characterized in that: the lower end of the arch cover secondary lining (1) is fixedly connected with arch foot joists (2), the outer middle plate (5) is arranged on the left side and the right side of the inner middle plate (4), the inner middle plate (4) and the outer middle plate (5) are fixedly connected in an integrated mode through a middle plate reinforcing longitudinal beam (6), the opening edge of the inner middle plate (4) is fixedly connected with a middle plate hole side beam (3), the lower end of the outer middle plate (5) is fixedly connected with a concrete diagonal strut (7), the outer surface of the outer middle plate (5) and the outer surface of the concrete diagonal strut (7) are both tightly connected with an inverted arch and side wall structure (10), the upper end of the inverted arch and side wall structure (10) is connected with the lower end of the arch cover secondary lining (1) in an integrated mode, the lower end of the inverted arch and side wall structure (10) is fixedly connected with a station (11), an inverted arch backfill layer (12) is arranged below the station table plate (11), and the upper portion erection joint of platform board (11) has inside building staircase structure (13), the junction of concrete bracing (7) and inverted arch and side wall structure (10) is connected with side wall and strengthens longeron (8), and the lower extreme fixed mounting of concrete bracing (7) has rail top wind channel (9).
2. The pillarless structure for a single-arch large-span underground excavation station of claim 1, wherein: the arch cover secondary lining (1) is of an arch structure, the arch cover secondary lining (1) and the arch foot joist (2) form an integrated structure, and the arch cover secondary lining (1), the arch foot joist (2), the inverted arch and side wall structure (10) and the inverted arch backfill layer (12) form a square structure.
3. The pillarless structure for a single-arch large-span underground excavation station of claim 1, wherein: the thickness dimension of outside medium plate (5) is 200mm, and the thickness dimension of inboard medium plate (4) is 350mm, and the width dimension of inboard medium plate (4) equals the interval size between the left and right monomer of rail top wind channel (9), and the width dimension of rail top wind channel (9) is not less than the horizontal projection width dimension of concrete bracing (7) moreover.
4. The pillarless structure for a single-arch large-span underground excavation station of claim 1, wherein: the outer middle plate (5) is arranged in a bilateral symmetry mode about the central axis of the inner middle plate (4), and an integrated connecting structure is formed between the outer middle plate (5) and the inner middle plate (4) through a middle plate reinforcing longitudinal beam (6).
5. The pillarless structure for a single-arch large-span underground excavation station of claim 1, wherein: the concrete diagonal brace (7) is composed of a lateral wall outer stress rib (14), a lateral wall reinforced steel plate (15), a diagonal brace stress main rib (16), a diagonal brace composite stirrup (17), a diagonal brace H-shaped steel (18), an H-shaped steel web hole (19), a middle plate upper stress rib (20) and a middle plate reinforced steel plate (21), the lateral wall outer stress rib (14) is in welded connection with the lateral wall reinforced steel plate (15), the lateral wall reinforced steel plate (15) is fixedly connected with the end part of the diagonal brace H-shaped steel (18), the upper end of the diagonal brace H-shaped steel (18) is in welded connection with the middle plate reinforced steel plate (21), the upper end of the middle plate reinforced steel plate (21) is fixedly connected with the middle plate upper stress rib (20), an H-shaped steel web hole (19) is formed in a penetrating manner on the outer surface of the diagonal brace H-shaped steel (18), and the diagonal brace composite stirrup (17) is connected in a penetrating manner inside the, the main diagonal brace stressed reinforcement (16) is wound and connected on the outer surface of the diagonal brace H-shaped steel (18) through the composite diagonal brace stirrup (17).
6. The pillarless structure for a single-arch large-span underground excavation station of claim 5, wherein: middle plate reinforcing steel plate (21) pass through middle plate upper portion atress muscle (20) and outside middle plate (5) fixed connection, and middle plate reinforcing steel plate (21) and side wall reinforcing steel plate (15) set up about bracing H shaped steel (18) bilateral symmetry to side wall reinforcing steel plate (15) pass through side wall outside atress muscle (14) and invert and side wall structure (10) fixed connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021052396.1U CN212535710U (en) | 2020-06-10 | 2020-06-10 | A no post structure that is used for single hunch to stride secretly dig station greatly |
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| CN202021052396.1U CN212535710U (en) | 2020-06-10 | 2020-06-10 | A no post structure that is used for single hunch to stride secretly dig station greatly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943265A (en) * | 2021-03-10 | 2021-06-11 | 中铁二院工程集团有限责任公司 | Subway pole-free station structure adopting primary arch cover method and construction method |
| CN113216254A (en) * | 2021-05-25 | 2021-08-06 | 中铁一局集团(广州)建设工程有限公司 | High-clearance subway station fabricated structure and construction method thereof |
| CN113847069A (en) * | 2021-10-09 | 2021-12-28 | 北京城建设计发展集团股份有限公司 | Underground excavation subway station of suspension type station hall layer and independent rail traveling area and construction method thereof |
-
2020
- 2020-06-10 CN CN202021052396.1U patent/CN212535710U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943265A (en) * | 2021-03-10 | 2021-06-11 | 中铁二院工程集团有限责任公司 | Subway pole-free station structure adopting primary arch cover method and construction method |
| CN113216254A (en) * | 2021-05-25 | 2021-08-06 | 中铁一局集团(广州)建设工程有限公司 | High-clearance subway station fabricated structure and construction method thereof |
| CN113847069A (en) * | 2021-10-09 | 2021-12-28 | 北京城建设计发展集团股份有限公司 | Underground excavation subway station of suspension type station hall layer and independent rail traveling area and construction method thereof |
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