Assembly type prefabricated platform applied to airport subway

Abstract

The assembly type prefabricated platform applied to the airport subway comprises bottom supporting tables, platform plates and a cast-in-place structure, the bottom supporting tables are arranged on the ground and attached to a wall, the platform plates are arranged on the bottom supporting tables in groups and located between every two adjacent bottom supporting tables, each group of platform plates is provided with two opposite platform plates, and each group of platform plates is provided with a cast-in-place structure. The cast-in-place structure comprises a first cast-in-place slab and a second cast-in-place slab, the first cast-in-place slab is located on the bottom supporting table, located between the two sets of platform plates and connected with the two sets of platform plates, the second cast-in-place slab is located on the platform plates and located between the two platform plates of each set, and the second cast-in-place slab is connected with the first cast-in-place slab. The prefabricated bottom supporting platform and the platform plate are used for erecting the main body structure of the platform, and the prefabricated structures are connected into a whole through the cast-in-place structures, so that the construction efficiency of the platform is guaranteed, meanwhile, the cast-in-place structures enable the platform to be of an integrated structure, and the stability and the safety of the structure are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of assembled construction, in particular to an assembled prefabricated platform used in airport subways. Background Art

[0002] As a public transportation mode with great advantages, more and more cities are constructing subways. Since subway construction has the characteristics of long construction period and high cost, it is necessary to shorten the construction period and reduce costs as much as possible during subway construction. The use of prefabricated structures for assembly construction during subway construction can effectively reduce the construction period, and compared with on-site casting construction, the cost is also significantly reduced. Therefore, some new subway lines use prefabricated platforms for assembly construction to improve construction efficiency, such as the assembled subway platform structure disclosed in CN117926729A. However, the above-mentioned prefabricated structure has the defects of complex structure and poor integrity, and the vibration during the operation of the subway has a great impact on the stability of the structure. The utility model provides an assembled prefabricated platform applied to airport subways to solve the above problems. Utility Model Content

[0003] The utility model provides an assembled prefabricated platform applied to airport subways, which adopts a combination of prefabricated structure and cast-in-place structure, thereby ensuring construction efficiency and also ensuring that the platform is an integrated structure.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] An assembled prefabricated platform used in airport subways includes a bottom support platform, a platform plate and a cast-in-place structure. The bottom support platform is set on the ground and fits against the wall. The platform plates are arranged in groups on the bottom support platform and are located between two adjacent bottom support platforms. Two platform plates are arranged opposite to each other in each group. The cast-in-place structure includes a first cast-in-place plate and a second cast-in-place plate. The first cast-in-place plate is located on the bottom support platform, between the two groups of platform plates, and connected to the two groups of platform plates. The second cast-in-place plate is located on the platform plate, between the two platform plates in each group, and is connected to the first cast-in-place plate.

[0006] Furthermore, the first cast-in-place slab includes a first steel bar skeleton and cast-in-place concrete, the first steel bar skeleton includes tie bars, end-to-end tie bars and first connecting bars, the tie bars are pre-embedded in the bottom support platform, the upper part of the tie bars is located on the top surface of the bottom support platform, the end-to-end tie bars are pre-embedded in the platform plate, the outside of the end-to-end tie bars is located on the end surface of the platform plate, and the first connecting bars are connected to the tie bars and the end-to-end tie bars.

[0007] Furthermore, the second cast-in-place slab includes a second steel bar skeleton and cast-in-place concrete, the second steel bar skeleton includes side tension steel bars and second connecting steel bars, the side tension steel bars are pre-embedded in the platform slab, the outside of the side tension steel bars is located on the inner side of the platform slab, and the second connecting steel bars are connected to the side tension steel bars.

[0008] Furthermore, a second step is provided on the inner side of the platform plate, the first steps of adjacent platform plates are fitted together, and the second cast-in-place plate is provided on the first step and is flush with the second step.

[0009] Furthermore, the second connecting steel bar is arranged throughout the entire length and passes through the first cast-in-place slab.

[0010] Furthermore, the bottom support platform is a horizontal F-shaped structure, the first cast-in-place slab and the second cast-in-place slab are arranged perpendicular to each other, and the first cast-in-place slab is connected to the wall.

[0011] The beneficial effects of the utility model are as follows:

[0012] The main structure of the platform is built using prefabricated bottom supports and platform plates, and the prefabricated structures are connected into a whole using cast-in-place structures. This not only ensures the efficiency of platform construction, but also makes the platform an integrated structure, ensuring the stability and safety of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the steel frame setting state of the cast-in-place structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the arrangement of the steel frame of the cast-in-place structure of the present invention;

[0016] Figure 4 This is a schematic diagram of the bottom support structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the platform plate structure of the present utility model.

[0018] Figure numerals: 1. bottom support platform; 2. platform plate; 3. first cast-in-place slab; 31. first steel bar skeleton; 311. tie steel bar; 312. end-to-end tension steel bar; 313. first connecting steel bar; 4. second cast-in-place slab; 41. second steel bar skeleton; 411. side-to-side tension steel bar; 412. second connecting steel bar. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] like Figure 1 、 2 As shown in Figures 3, 4, and 5, a specific embodiment of an assembled prefabricated platform for airport subways includes a bottom support platform 1, a platform plate 2, and a cast-in-place structure. The bottom support platform 1 is set on the ground and fits against the wall. The platform plates 2 are arranged in groups on the bottom support platform 1 and are located between two adjacent bottom support platforms 1. Two platform plates 2 are arranged opposite to each other in each group. The cast-in-place structure includes a first cast-in-place plate 3 and a second cast-in-place plate 4. The first cast-in-place plate 3 is located on the bottom support platform 1, between the two groups of platform plates 2, and connected to the two groups of platform plates 2. The second cast-in-place plate 4 is located on the platform plate 2, between the two platform plates 2 in each group, and connected to the adjacent first cast-in-place plates 3. The second cast-in-place plate 4 is connected to the first cast-in-place plate 3.

[0022] In this embodiment, the prefabricated bottom support platforms 1 are arranged at intervals on the ground, and the groups of prefabricated platform plates 2 are erected between adjacent bottom support platforms 1 as connections. After the platform plates 2 are erected, space is reserved between the platform plates 2 for pouring the cast-in-place structure. After the cast-in-place structure is poured, the prefabricated structures are connected to each other, so that the entire platform is a continuous integral structure. The above structure effectively improves the construction efficiency through the prefabrication and assembly installation of the bottom support platforms 1 and the platform plates 2, and connects the prefabricated structures into one through the cast-in-place structure, thereby improving the stability and safety of the overall structure.

[0023] like Figure 1 、 2 As shown in Figure 3, the first cast-in-place slab 3 is used to connect two groups of adjacent platform slabs 2, so that they are connected to each other and to the bottom support platform 1. The second cast-in-place slab 4 is used to connect the two platform slabs 2 in the same group, and also connects the adjacent first cast-in-place slabs 3, so that the entire platform becomes a continuous and uninterrupted integral structure.

[0024] like Figure 1 、 2 As shown in Figure 3, further, the first cast-in-situ slab 3 includes a first steel bar skeleton 31 and cast-in-situ concrete. The first steel bar skeleton 31 includes tie bars 311, end-facing tie bars 312, and first connecting bars 313. The tie bars 311 are pre-embedded in the bottom support 1, with their upper parts exposed on the top surface of the bottom support 1. The end-facing tie bars 312 are pre-embedded in the platform slab 2, with the exterior of the end-facing tie bars 312 located on the end surface of the platform slab 2. The first connecting bars 313 are connected to the tie bars 311 and the end-facing tie bars 312. The tie bars 311 are pre-embedded steel bars in the bottom support 1, and the end-facing tie bars 312 are the protruding ends of the steel bar skeleton in the platform slab 2 on the end surface. The end-facing tie bars 312 are overlapped with the tie bars 311 and are connected to each other through the first connecting bars 313 to form the first steel bar skeleton 31.

[0025] like Figure 1 、 2 As shown in Figure 3, further, the second cast-in-situ slab 4 includes a second steel frame 41 and cast-in-situ concrete. The second steel frame 41 includes side tension steel bars 411 and second connecting steel bars 412. The side tension steel bars 411 are pre-embedded in the platform slab 2. The outer portion of the side tension steel bars 411 is located on the inner side of the platform slab 2. The second connecting steel bars 412 are connected to the side tension steel bars 411. The side tension steel bars 411 are the protruding ends of the steel frame in the platform slab 2 on the inner side. They overlap with the side tension steel bars 411 of another platform slab 2 in the same group and are connected to each other through the second connecting steel bars 412 to form the second steel frame 41. The second steel frame 41 passes through the first steel frame 31 and is connected to the first steel frame 31. After the cast-in-situ structure is cast, the first cast-in-situ slab 3 and the second cast-in-situ slab 4 are connected to each other, and the connection between the cast-in-situ structure and the prefabricated structure is achieved through the tie bars 311, the end tension steel bars 312 and the side tension steel bars 411.

[0026] Furthermore, the inner side of the platform plate 2 is provided with a secondary step, the primary steps of adjacent platform plates 2 are fitted together, the second cast-in-place plate 4 is provided on the table top of the primary step, and the top surface of the second cast-in-place plate 4 is flush with the table top of the secondary step.

[0027] Preferably, the top surface of the cast-in-place structure is flush with the surface of the platform slab 2, and the surface of the platform is a continuous flat plane.

[0028] Furthermore, steel bars are reserved on the wall surface that the bottom support platform 1 contacts, and are located at the position of the first cast-in-place slab 3. When the first steel bar skeleton 31 is tied, it is connected to the reserved steel bars on the wall surface. After the cast-in-place structure is cast, the platform is connected to the wall.

[0029] Furthermore, the second connecting steel bar 412 is provided throughout the entire length and passes through the first cast-in-place slab 3 .

[0030] Furthermore, the bottom support platform 1 is a horizontal F-shaped structure, the first cast-in-place slab 3 and the second cast-in-place slab 4 are arranged perpendicular to each other, and the first cast-in-place slab 3 is connected to the wall.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention, and any reference numerals in the claims should not be construed as limiting the claims to which they relate.

Claims

1. An assembled prefabricated platform for airport subways, characterized by: The invention comprises a bottom support platform (1), a platform plate (2) and a cast-in-place structure, wherein the bottom support platform (1) is arranged on the ground and is fitted with a wall, the platform plates (2) are arranged in groups on the bottom support platform (1) and are located between two adjacent bottom support platforms (1), and each group of platform plates (2) comprises two oppositely arranged platform plates, and the cast-in-place structure comprises a first cast-in-place plate (3) and a second cast-in-place plate (4), wherein the first cast-in-place plate (3) is located on the bottom support platform (1), between the two groups of platform plates (2), and connected to the two groups of platform plates (2), and the second cast-in-place plate (4) is located on the platform plate (2), between the two platform plates (2) of each group, and the second cast-in-place plate (4) is connected to the first cast-in-place plate (3).

2. The prefabricated platform for airport subway according to claim 1 is characterized by: The first cast-in-situ slab (3) comprises a first steel bar skeleton (31) and cast-in-situ concrete, wherein the first steel bar skeleton (31) comprises tie bars (311), end-face tie bars (312) and first connecting bars (313), wherein the tie bars (311) are pre-buried in the bottom support platform (1), wherein the upper portion of the tie bars (311) is located on the top surface of the bottom support platform (1), wherein the end-face tie bars (312) are pre-buried in the platform slab (2), wherein the outer portion of the end-face tie bars (312) is located on the end surface of the platform slab (2), and wherein the first connecting bars (313) are connected to the tie bars (311) and the end-face tie bars (312).

3. The prefabricated platform for airport subway according to claim 1 is characterized by: The second cast-in-situ slab (4) comprises a second steel bar skeleton (41) and cast-in-situ concrete, the second steel bar skeleton (41) comprising side tension steel bars (411) and second connecting steel bars (412), the side tension steel bars (411) being pre-embedded in the platform slab (2), the exterior of the side tension steel bars (411) being located on the inner side of the platform slab (2), and the second connecting steel bars (412) being connected to the side tension steel bars (411).

4. The prefabricated platform for airport subway according to claim 1 is characterized by: A second step is provided on the inner side of the platform plate (2), the first steps of adjacent platform plates (2) are fitted together, and the second cast-in-situ plate (4) is provided on the first step and is flush with the second step.

5. The prefabricated platform for airport subway according to claim 3 is characterized by: The second connecting steel bar (412) is arranged throughout the entire length and passes through the first cast-in-place slab (3).

6. The prefabricated platform for airport subway according to claim 1 is characterized by: The bottom support platform (1) is a horizontal F-shaped structure; the first cast-in-place slab (3) and the second cast-in-place slab (4) are arranged perpendicular to each other; and the first cast-in-place slab (3) is connected to the wall.

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