Anti-floating joint for connecting station top plate and enclosure structure

Abstract

The utility model discloses an anti-floating node for connecting a station top plate and an enclosure structure, a top beam is arranged on the top surface of the enclosure structure, vertical steel bars are arranged in the enclosure structure and extend upwards from the top surface of the top beam, and horizontal steel bars are arranged in the station top plate and extend outwards from the side surface of the station top plate. The vertical steel bars and the horizontal steel bars are gathered above the top beam and then form an anti-floating joint through post-pouring concrete, and the anti-floating joint is as wide as the enclosure structure and as high as the top plate of the station. The integrally-connected anti-floating joint is formed between the side face of the top plate of the station and the top face of the top beam through post-pouring concrete, the problem that in the anti-floating scheme of a coping component, when the height of a construction site is lower than that of the top plate of the station, the coping component cannot be arranged is solved, and the grooving procedure in the scheme of adopting a lug component of a station structure is avoided; the thickness of the enclosure wall is reduced, construction is more convenient, stress is better, a construction gap between a station structure and an anti-floating component in the prior art is eliminated, anti-buoyancy transmission is more direct, and the influence of station floating caused by later land development is more effectively resisted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of anti-floating node of underground station, specifically relates to a kind of anti-floating node of connecting station roof and enclosure structure. BACKGROUND

[0002] When underground station is developed with land construction, station roof is higher than construction site height in some cases.When underground station is in the area with high underground water level, there are generally two schemes to use enclosure structure as anti-floating component: one is to set pressure top component on the side of enclosure structure above structure roof for anti-floating, such as the "pile foundation combining enclosure, anti-floating and bearing functions" disclosed in CN219240559U and the "anti-floating structure of subway station combining enclosure pile and anti-floating block" disclosed in CN204849851U, which is only applicable to the situation that construction site height is higher than station roof;the other is to set groove on the side of inner side of enclosure structure and embed station structure eaves component for anti-floating, such as the "anti-floating structure of underground structure combining enclosure pile and crown beam" disclosed in CN205934994U and the "anti-floating structure system of subway station combining enclosure pile" disclosed in CN217580276U, which needs to construct groove after station structure eaves component position on enclosure structure, which weakens the thickness of enclosure structure and prolongs the construction time of station.The above two schemes of station anti-floating node do not form integral connecting component between anti-floating component and station structure, and the construction gap between station structure and anti-floating component is eliminated after vertical displacement caused by floating force, so that the anti-floating function is fully played, and the resistance of station to the influence of long-term construction of land on station anti-floating force is weak. UTILITY MODEL CONTENT

[0003] Therefore, the utility model aims to provide a kind of anti-floating node of connecting station roof and enclosure structure to solve the deficiency in prior art.

[0004] To achieve the above-mentioned purpose, the utility model is realized by the following technical scheme:

[0005] An anti-floating node of connecting station roof and enclosure structure is provided, wherein the top surface of the enclosure structure is provided with a crown beam, vertical steel bars are arranged in the enclosure structure and extend upward from the top surface of the crown beam, horizontal steel bars are provided in the station roof and extend outward from the side surface of the station roof, the vertical steel bars and the horizontal steel bars converge above the crown beam to form an anti-floating node by post-pouring concrete, and the anti-floating node is the same width as the enclosure structure and the same height as the station roof.

[0006] The anti-floating node of connecting station roof and enclosure structure is as described above, wherein the vertical steel bars include inner row steel bars and outer row steel bars arranged parallel to each other, and the inner row steel bars and the outer row steel bars form closed connection above the crown beam.

[0007] The anti-floating joint for connecting the station roof and the enclosure structure, wherein the vertical steel bars are in a segmented structure and the segmented steel bars are connected through steel bar connectors.

[0008] The anti-floating joint for connecting the station roof and the enclosure structure, wherein the horizontal steel bars include upper and lower rows of steel bars arranged in parallel with each other.

[0009] The anti-floating joint for connecting the station roof and the enclosure structure, wherein the horizontal steel bars are in a segmented structure and the segmented steel bars are connected through steel bar connectors.

[0010] The anti-floating joint for connecting the station roof and the enclosure structure, wherein parallel station longitudinal steel bars are arranged in the area where the anti-floating joint is located.

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

[0012] The anti-floating joint formed by the post-poured concrete between the side surface of the station roof and the top surface of the crown beam is integrally connected, which solves the problem that the pressing top component cannot be arranged when the construction site height is lower than the station roof height in the anti-floating scheme using the pressing top component, avoids the slotting process in the station structure eave component scheme and the weakening of the enclosure wall thickness, and makes the construction more convenient and the stress more optimal, eliminates the construction gap between the station structure and the anti-floating component in the prior art, makes the anti-floating force transmission more direct, and makes the resistance to the station floating caused by the later land development more effective. BRIEF DESCRIPTION OF DRAWINGS

[0013] To further illustrate the above purposes, structural features and effects of the utility model, the utility model will be described in detail below in combination with the drawings.

[0014] Figure 1 The structure schematic diagram of the preferred embodiment of the utility model is shown in the figure.

[0015] In the figure: 1, enclosure structure; 2, crown beam; 3, station roof; 4, anti-floating joint; 5, inner row of steel bars; 6, outer row of steel bars; 7, upper row of steel bars; 8, lower row of steel bars; 9, steel bar connector; 10, parallel station longitudinal steel bars; 11, steel bar welded joint. DETAILED DESCRIPTION

[0016] The terms "invention" and "the present invention" used in this specification are intended to refer broadly to all of the subject matter of this specification and any patent claims below. Statements containing these terms should be understood not to limit the subject matter described herein or claims below to a single invention, and these phrases should be interpreted not to surround only a singularly identified invention. In addition, the specification is not intended to limit the subject matter described herein or the claims below to any particular application or applications. Rather, the subject matter described herein and the claims below should be interpreted to maintain their broadest meaning as is consistent with the specification and the following patent claims.

[0017] The details of the invention will now be discussed with reference to the drawings, which are provided by way of example only, and in which like reference numerals refer to similar elements or components throughout the various figures.

[0018] As used herein, the terms "comprises", "comprising", "includes", "including" and the like are to be interpreted to mean that the stated item, material, or process is included. Although the description of the drawings can refer to such things as "above", "below", "up", "down", "top", "bottom", "front", "back" and the like, for convenience, the orientation of the drawings refers to the drawings as they are presented in the patent application. These orientations are not intended to be limiting. These terms are not intended to mean "consisting only".

[0019] Referring to Figure 1 As shown, the present invention is an anti-floating joint connecting a station roof and an enclosure structure, wherein the top surface of the enclosure structure 1 is provided with a crown beam 2, vertical steel bars are arranged in the enclosure structure 1 and extend upward from the top surface of the crown beam 2, horizontal steel bars are arranged in the station roof 3 and extend outward from the side surface of the station roof 3. The vertical steel bars and the horizontal steel bars are converged above the crown beam 2 and form the anti-floating joint 4 by post-pouring concrete, i.e. the anti-floating joint 4 is a reinforced concrete structure as a whole, the anti-floating joint 4 is as wide as the enclosure structure 1 and as high as the station roof 3.

[0020] Continuing to refer to the drawings, the vertical steel bars include inner row steel bars 5 and outer row steel bars 6 arranged in parallel with each other, the inner row steel bars 5 and the outer row steel bars 6 form a closed connection above the crown beam 2. The horizontal steel bars include upper row steel bars 7 and lower row steel bars 8 arranged in parallel with each other.

[0021] In the preferred embodiment, the vertical steel bars are of segmented structure and the connection between the segmented steel bars is realized by steel bar connectors 9. The horizontal steel bars are of segmented structure and the connection between the segmented steel bars is realized by steel bar connectors 9, the steel bar connectors 9 are usually located inside the crown beam 2 and the station roof 3.

[0022] Parallel station longitudinal steel bars 10 are arranged in the area where the anti-floating node 4 is located.

[0023] The closed connection ends formed by the inner row steel bars 5 and the outer row steel bars 6 above the crown beam 2 are connected by welding to form steel welding joints 11.

[0024] The anti-floating node 4 is implemented by the following steps:

[0025] 1. Envelope structure design: the envelope structure is designed according to the load effect obtained by analyzing and calculating the combined geological conditions and load actions;

[0026] 2. Crown beam construction: the envelope structure 1 is constructed, and the crown beam 2 is arranged on the top surface of the envelope structure 1, the steel connector 9 for the anti-floating node 4 is embedded on the top surface of the crown beam 2, and the protection of the steel connector 9 is completed;

[0027] 3. Underground station main structure construction: after the crown beam 2 reaches the design strength, the foundation pit support is sequentially erected from top to bottom, the foundation pit is excavated to the bottom surface of the foundation pit, and then the cushion layer and the structure waterproof layer are sequentially constructed from bottom to top according to the design scheme, the foundation pit support is removed, the station main structure is constructed to below the station top plate 3, the steel connector 9 for connecting the segmented steel bars of the anti-floating node 4 is arranged on the side surface of the station top plate 3, and the protection of the steel connector 9 is completed, and then the station top plate 3 is constructed:

[0028] 4. Connection steel bar construction: the segmented steel bars are connected to each other by using the steel connector 9, the parallel station longitudinal steel bars 10 are arranged in the area of the anti-floating node 4, and the closed connection ends formed by the inner row steel bars 5 and the outer row steel bars 6 above the crown beam 2 are connected by welding to form the steel welding joints 11.

[0029] 5. Anti-floating node construction: the concrete is poured between the top of the crown beam 2 and the side surface of the station top plate 3 to form the anti-floating node 4.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the implementation mode and protection scope of the utility model, and those skilled in the art should realize that the solutions obtained by equivalent replacement and obvious changes to the contents of the utility model specification and drawings should be included in the protection scope of the utility model.

Claims

1. A anti-float joint connecting a roof of a station with a surrounding structure, characterized in that, The top surface of the enclosure is provided with a crown beam, vertical steel bars are arranged in the enclosure and extend upward from the top surface of the crown beam, horizontal steel bars are arranged in the station roof and extend outward from the side surface of the station roof, the vertical steel bars and the horizontal steel bars are converged above the crown beam and then form an anti-floating joint through post-poured concrete, and the anti-floating joint is in the same width as the enclosure and in the same height as the station roof.

2. The anti-flooding joint connecting the roof of a railway station with the envelope according to claim 1, characterized in that, The vertical steel bars include inner rows of steel bars and outer rows of steel bars arranged in parallel with each other, and the inner rows of steel bars and the outer rows of steel bars form closed connections above the crown beam.

3. The anti-flooding joint connecting the roof of a railway station with the envelope according to claim 2, characterized in that, The vertical steel bars are in a segmented structure and the segmented steel bars are connected through steel bar connectors.

4. The anti-flooding joint connecting the roof of a railway station with the envelope according to claim 1, characterized in that, The horizontal steel bars include upper rows of steel bars and lower rows of steel bars arranged in parallel with each other.

5. The anti-flooding joint for connecting the roof of a station with the envelope according to claim 4, characterized in that, The horizontal steel bars are in a segmented structure and the segmented steel bars are connected through steel bar connectors.

6. The anti-flooding joint connecting the roof of a station and the envelope according to claim 1, characterized in that, Parallel station longitudinal steel bars are arranged in the area where the anti-floating joint is located.

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