A backfill-free overhead prefabricated support device suitable for a double-deck vehicle base

Abstract

The utility model discloses a kind of backfill-free overhead prefabricated support devices suitable for double-layer vehicle base, belong to rail transit vehicle base technical field, including several prefabricated structure plates and multiple fixed components;Each prefabricated structure plate extends along longitudinal direction, and each prefabricated structure plate is sequentially arranged on the bottom beam of backfill area both sides along longitudinal direction, for plugging backfill area;The transverse side of each prefabricated structure plate is provided with at least one fixed component, each fixed component is arranged between prefabricated structure plate and bottom beam, for the fixed connection between bottom beam and prefabricated structure plate.The backfill-free overhead prefabricated support device suitable for double-layer vehicle base provided by the utility model can not only reduce the construction procedure of column type inspection pit between backfill area, improve construction efficiency, reduce construction period, but also can reduce floor load, reduce overall cost.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail transit vehicle depots, specifically relating to a prefabricated support device for double-layer vehicle depots that does not require backfilling. Background Technology

[0002] With the rapid development of rail transit, the number of vehicles on the road in cities is increasing, which in turn leads to a greater demand for vehicle maintenance. Double-decker vehicle depots, with their ability to provide more maintenance space per unit area of ​​land, have been increasingly widely used in the field of rail transit vehicle depot technology in recent years.

[0003] There is a requirement for backfilling with a certain thickness of building material between the two column inspection pits in the second-floor garage of the urban rail transit double-decker vehicle base. Traditional backfilling methods result in low overall construction efficiency and long construction period due to the large amount of backfilling work. Moreover, the backfill thickness is usually not less than 600mm, which increases the floor load and requires strengthening the reinforcement of beams and columns, thereby further increasing the overall cost. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a prefabricated support device for double-layer vehicle bases that does not require backfilling. It can not only reduce the construction process in the area between column inspection pits, improve construction efficiency, and shorten the construction period, but also reduce the load on the floor and lower the overall cost.

[0005] To achieve the above objectives, this utility model provides a prefabricated, non-backfilling overhead support device suitable for double-layer vehicle depots, used to seal the backfill area formed between two adjacent column-type inspection pits in a two-layer depot; comprising: A plurality of prefabricated structural slabs, each of which extends longitudinally and is sequentially arranged longitudinally on the bottom beams on both sides of the backfill area, for sealing the backfill area; Multiple fixing components are provided, with at least one fixing component on each of the transverse sides of each precast structural slab. Each fixing component is disposed between the precast structural slab and the bottom beam for fixed connection between the bottom beam and the precast structural slab.

[0006] As a further preferred embodiment of this utility model, each of the bottom beams is provided with a plurality of brackets spaced longitudinally on the side wall of the backfill area, the brackets being used to support the precast structural slab.

[0007] As a further preferred embodiment of this utility model, each of the prefabricated structural panels includes a panel body and edge sealing beams located on both sides of the panel body, wherein the bottom surface of the edge sealing beams abuts against the top surface of the corbel.

[0008] As a further preferred embodiment of this invention, each of the edge sealing beams rests on at least two corbels to ensure the stable support of the precast structural slab.

[0009] As a further preferred embodiment of this utility model, the fixing component is disposed between the corbel and the edge sealing beam for fixing the prefabricated structural plate to the corbel.

[0010] As a further preferred embodiment of this utility model, the fixing component includes a connecting bolt and a connecting screw hole; One end of the connecting screw hole is located on the top surface of the edge sealing beam, and the other end is located in the bracket; the connecting bolt is threaded into the connecting screw hole and is used to fix the prefabricated structural plate to the bracket.

[0011] As a further preferred embodiment of this utility model, the connecting screw hole includes a bolt sleeve disposed in the bracket and a bolt hand hole disposed on the sealing beam.

[0012] As a further preferred embodiment of this utility model, both the bolt sleeve and the bolt hand hole are arranged at an angle.

[0013] As a further preferred embodiment of this invention, the top of the bolt hand hole is provided with a groove for accommodating the top of the connecting bolt.

[0014] As a further preferred embodiment of this utility model, the bolt hand hole is a smooth through hole, and the thread is provided on the side wall surface of the connecting bolt away from the head.

[0015] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include: (1) The prefabricated support device for double-layer vehicle depots without backfilling includes several prefabricated structural slabs and multiple fixing components. Each prefabricated structural slab extends longitudinally and is sequentially arranged on the bottom beams on both sides of the backfill area to seal the backfill area. At least one fixing component is provided on both sides of each prefabricated structural slab, and each fixing component is arranged between the prefabricated structural slab and the bottom beam for fixed connection between the bottom beam and the prefabricated structural slab. This prefabricated support device for double-layer vehicle depots without backfilling can not only reduce the construction steps of the backfill area between column inspection pits, improve construction efficiency, and shorten the construction period, but also reduce the load on the floor and lower the overall cost.

[0016] (2) The prefabricated support device for double-layer vehicle bases without backfilling is made of a prefabricated structural slab consisting of a slab in the middle and edge beams on both sides. It has a simple structure, reliable quality, and can be mass-produced in the factory, which meets the development requirements of building industrialization.

[0017] (3) The prefabricated support device for double-layer vehicle base without backfilling is provided by the present invention. It is provided by a number of longitudinally spaced corbel structures set on the side wall of the bottom beam and abutting the edge beam on the prefabricated structure plate. A connecting component including connecting bolts, bolt sleeves and bolt hand holes is provided between the edge beam and the corbel structure, so that the prefabricated structure plate can be quickly and conveniently installed on the corbels of the two bottom beams, which greatly simplifies the construction process, improves the construction efficiency and shortens the on-site construction period. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the prefabricated support device without backfill, applicable to a double-layer vehicle base, in the installation state, according to an embodiment of this utility model. Figure 2 This is a cross-sectional view of the prefabricated structural plate and connecting bolts in an embodiment of this utility model; Figure 3 This is a plan view of the prefabricated structural slab in an embodiment of this utility model; Figure 4 This is a cross-sectional view of the cow leg in an embodiment of this utility model.

[0019] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Cover plate; 2. Rail support beam; 3. Column; 4. Bottom beam; 5. Corbel; 6. Plate; 7. Edge sealing beam; 8. Connecting bolts; 9. Bolt handholes; 10. Bolt sleeves. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Example: Please see Figures 1-4 The prefabricated, non-backfilling overhead support device for double-layer vehicle depots in the preferred embodiment of this utility model not only reduces the construction steps in the backfill area between column inspection pits but also reduces the floor load, thereby improving construction efficiency, shortening the construction period, and reducing the overall cost. The column inspection pits of this utility model are set on a bottom support structure, which includes longitudinally extending rail beams 2 and a cover plate 1 laid on the rail beams 2, wherein the top surface of the cover plate 1 is the ground of the double-layer depot. The column inspection pits of the double-layer depot refer to the inspection area for rail transit vehicles formed by the two longitudinally extending bottom beams 4 on the cover plate 1, the spaced columns 3 on the two bottom beams 4, and the top surface of the cover plate 1. The area between two adjacent column inspection pits has a certain thickness of backfill required; this area with backfill requirements is the backfill area in this application.

[0026] Specifically, in a preferred embodiment, the prefabricated support device that eliminates the need for backfilling can seal the backfill area located between the bottom beams 4 of two adjacent column-type inspection pits. It comprises several prefabricated structural slabs and multiple fixing components. Each prefabricated structural slab extends longitudinally and is sequentially connected end-to-end on the bottom beams 4 on both sides of the backfill area to form a continuous sealing structure. This achieves rapid sealing of the top of the backfill area while reducing the load on the cover plate 1 structure.

[0027] In this preferred embodiment, the prefabricated structural slabs are standard units prefabricated in the factory, which can be mass-produced and shorten the on-site construction period. Preferably, after the prefabricated structural slabs are transported to the construction site, they undergo product quality inspection. Only prefabricated structural slabs that pass the inspection can be hoisted to the backfill area for installation to ensure the reliability of the sealing quality.

[0028] Furthermore, at least one fixing component is provided on both sides of each precast structural slab, and each fixing component is located between the precast structural slab and the bottom beam 4 for fixed connection between the bottom beam 4 and the precast structural slab, thereby ensuring the stability of the precast structural slab in sealing the top of the backfill area. In this embodiment, the precast structural slab is installed on the bottom beam 4 by fixing components, which greatly simplifies the construction process of the backfill area.

[0029] Furthermore, in a preferred embodiment, each of the bottom beams 4 has a plurality of corbels 5 spaced longitudinally on the side wall of the backfill area, the corbels 5 being used to support the precast structural slab. Preferably, the top surface of the precast structural slab laid on the corbels 5 is flush with the top surface of the bottom beam 4 to form a complete plane.

[0030] More preferably, each of the precast structural slabs includes a slab body 6 and edge sealing beams 7 located on both sides of the slab body 6, with the bottom surface of the edge sealing beams 7 abutting against the top surface of the corbel 5. Specifically, the slab body 6 and the edge sealing beams 7 of the precast structural slab are preferably integrally formed, the top surface of the slab body 6 is preferably flush with the top surface of the edge sealing beams 7, and the thickness of the edge sealing beams 7 is preferably greater than the thickness of the slab body 6, so as to improve the load-bearing capacity of the precast structural slab and ensure the stability of the precast structural slab support.

[0031] In a preferred embodiment, each of the edge sealing beams 7 rests on at least two corbels 5 to ensure the stability of the precast structural slab.

[0032] More specifically, in a preferred embodiment, a fixing component is disposed between the corbel 5 and the edge sealing beam 7 for fixing the prefabricated structural slab to the corbel 5.

[0033] Specifically, the fixing assembly includes a connecting bolt 8 and a connecting screw hole; one end of the connecting screw hole is located on the top surface of the edge sealing beam 7, and the other end is located in the bracket 5; the connecting bolt 8 is threaded into the connecting screw hole and is used to fix the prefabricated structural panel to the bracket 5.

[0034] More preferably, in the preferred embodiment, the connecting screw hole includes a bolt sleeve 10 disposed in the bracket 5 and a bolt hand hole 9 disposed on the sealing beam 7.

[0035] More specifically, in the preferred embodiment, both the bolt sleeve 10 and the bolt hand hole 9 are arranged at an angle, and correspondingly, the connecting bolt 8 is also arranged at an angle in the bolt sleeve 10 and the bolt hand hole 9 to improve the shear resistance of the connecting bolt 8.

[0036] Furthermore, in a preferred embodiment, the top of the bolt hand hole 9 is provided with a groove to accommodate the head of the connecting bolt 8, thereby preventing the head of the connecting bolt 8 from protruding from the top surface of the sealing beam 7 and forming a protrusion, and also facilitating the rotation of the connecting bolt 8.

[0037] In a preferred embodiment, the bolt hand hole 9 is a smooth through hole, and the thread is provided on the side wall surface of the bolt 8 away from the head.

[0038] Furthermore, in a preferred embodiment, a plurality of longitudinal limiting components are provided between the longitudinal mating surfaces of two adjacent prefabricated structural slabs. Preferably, the plurality of limiting components are provided at lateral intervals between the longitudinal mating surfaces of two adjacent prefabricated structural slabs. More preferably, three limiting components are provided between the longitudinal mating surfaces of two adjacent prefabricated structural slabs.

[0039] Further preferably, in a preferred embodiment, the longitudinal locking member includes a limiting groove and a limiting tooth respectively formed on the longitudinal mating surfaces of the two prefabricated structural slabs. The limiting tooth can be embedded in the limiting groove, thereby forming an effective guiding and limiting effect between the two adjacent prefabricated structural slabs. More specifically, in a preferred embodiment, the limiting tooth and the limiting groove are rectangular limiting teeth and rectangular limiting grooves.

[0040] The prefabricated support device for double-layer vehicle depots without backfilling, as described in this utility model, has a simple structure, is easy to use, and has a low cost. It consists of several longitudinally spaced corbels 5 on the bottom beam 4 and several longitudinally arranged prefabricated structural slabs on the corbels 5. Combined with several connecting components including connecting bolts 8, bolt sleeves 10, and bolt hand holes 9 on the prefabricated structural slabs and corbels 5, the prefabricated structural slabs can be quickly and conveniently installed on the corbels 5 on the two bottom beams 4. This greatly simplifies the construction process, improves construction efficiency, shortens the on-site construction period, reduces the floor load, and further reduces the overall cost. It has good prospects for promotion and application value.

[0041] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A prefabricated, non-backfilling overhead support device suitable for double-layer vehicle depots, used to seal the backfill area formed between two adjacent column-type inspection pits in a two-layer depot; characterized in that, include: A plurality of prefabricated structural slabs, each of which extends longitudinally and is sequentially arranged longitudinally on the bottom beams on both sides of the backfill area for sealing the backfill area; Multiple fixing components are provided, with at least one fixing component on each of the transverse sides of each precast structural slab. Each fixing component is disposed between the precast structural slab and the bottom beam for fixed connection between the bottom beam and the precast structural slab.

2. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 1, characterized in that, Each of the bottom beams has a number of brackets spaced longitudinally on the side wall of the backfill area, and the brackets are used to support the precast structural slab.

3. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 2, characterized in that, Each of the prefabricated structural slabs includes a slab body and edge sealing beams located on both sides of the slab body, with the bottom surface of the edge sealing beams abutting against the top surface of the corbel.

4. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 3, characterized in that, Each of the aforementioned edge-sealing beams rests on at least two corbels to ensure the stable support of the precast structural slab.

5. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 3 or 4, characterized in that, The fixing component is disposed between the corbel and the edge sealing beam for fixing the precast structural panel to the corbel.

6. The prefabricated overhead support device for double-layer vehicle depots without backfilling as described in claim 5, characterized in that, The fixing component includes connecting bolts and connecting screw holes; One end of the connecting screw hole is located on the top surface of the edge sealing beam, and the other end is located in the bracket; the connecting bolt is threaded into the connecting screw hole and is used to fix the prefabricated structural plate to the bracket.

7. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 6, characterized in that, The connecting bolt holes include bolt sleeves disposed in the bracket and bolt hand holes disposed on the edge sealing beam.

8. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 7, characterized in that, Both the bolt sleeve and the bolt hand hole are arranged at an angle.

9. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 7 or 8, characterized in that, The top of the bolt hand hole is provided with a groove for accommodating the head of the connecting bolt.

10. The prefabricated, non-backfilling overhead support device for double-layer vehicle depots according to claim 9, characterized in that, The bolt hand hole is a smooth through hole, and the bolt shank is threaded on the side wall away from the head.

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