A hoisting device and hoisting process for a middle plate of a concrete double-column canopy of a railway station

Abstract

The present application relates to a kind of hoisting equipment and hoisting process of railway station concrete double-column canopy middle plate, the equipment includes: main beam, front support, middle support, rear support, first hoisting assembly, roof track, track trolley, double-beam portal and second hoisting assembly, the rear support is supported on the top of the second vertical rail beam of platform end, front support supports on the outside flat ground of platform end, roof track is laid in the inside beam top of roof side plate, track trolley and the double-beam portal are all arranged on the roof track, first forward track is arranged in the direction of main beam extension, first hoisting assembly is arranged on the first forward track, second forward track is arranged in the direction of double-beam portal extension, and second hoisting assembly is arranged on second forward track.The present application can realize not to carry out line removal or to transport or carry out track hoisting using special track car, and is not restricted by line subgrade, and needs not the cooperation of line subconstruction unit.

Description

Technical Field

[0001] This invention relates to the field of concrete canopy hoisting technology, specifically to hoisting equipment and hoisting process for the middle slab of a double-column concrete canopy for railway passenger stations. Background Technology

[0002] Previously, railway passenger station platform canopies were mainly constructed using steel structures (space frame and membrane structures) and cast-in-place concrete structures. Steel structure canopies suffer from drawbacks such as susceptibility to rust, poor wind resistance, and severe vibrations and noise from passing trains. Cast-in-place concrete structure canopies, on the other hand, require significant manpower for frequent pouring of various formwork, involve numerous overlapping operations with station front work, and require substantial scaffolding for single-layer structures, resulting in complex construction and high overall costs.

[0003] Currently, there is a type of prefabricated concrete canopy component, which is manufactured in advance and transported to the site for assembly, saving on-site construction costs. On-site, wheeled or crawler cranes are mainly used for hoisting along the tracks on the platform side. Each span requires moving and positioning the crane, resulting in lengthy relocation and hoisting times, a large hoisting radius, and heavy double-column canopy roof components (some middle slabs weigh up to 40 tons), requiring large cranes and resulting in low hoisting efficiency. The hoisting route is constrained by the subgrade conditions, requiring full cooperation from the subgrade construction units. Even if the subgrade units permit the use, there are still cross-operations that can affect the overall project schedule. Without dismantling the existing track or using dedicated railcars for transportation or rail hoisting, this method cannot be implemented. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a hoisting equipment and hoisting process for the middle slab of a concrete double-column canopy for railway passenger stations. This application can make reasonable use of the space of the platform, i.e., the platform roof, without occupying the railway line foundation, and has a shorter construction period and lower construction cost.

[0006] The technical solution of the present invention is as follows: A hoisting device for the middle slab of a concrete double-column canopy in a railway passenger station includes: a main beam, a front support, a middle support, a rear support, a first hoisting assembly, a roof track, a track trolley, a double-beam gantry, and a second hoisting assembly. The front support, the middle support, and the rear support are each in pairs and are symmetrically arranged on the main beam in a front-to-back sequence. The middle support is retractable on the main beam. The rear support is supported on the top of the second vertical rail beam starting at the platform end. The front support is supported on the flat ground outside the platform end. The roof track is laid on the top of the inner beam of the roof side slab. The track trolley and the double-beam gantry are both mounted on the roof track. A first forward track is arranged along the extension direction of the main beam, and the first hoisting assembly is mounted on the first forward track. A second forward track is arranged along the extension direction of the double-beam gantry, and the second hoisting assembly is mounted on the second forward track.

[0007] Furthermore, the first lifting assembly includes a first vertical rail and a first lifting trolley. The first vertical rail is movably disposed on the side of the first longitudinal rail away from the main beam, and the first lifting trolley is movably disposed on the side of the first vertical rail away from the first longitudinal rail. The number of first lifting trolleys is not less than two. The second lifting assembly includes a second vertical rail and a second lifting trolley. The second vertical rail is movably disposed on the side of the second longitudinal rail away from the double-beam gantry. The second lifting trolley is movably disposed on the side of the second vertical rail away from the second longitudinal rail. The number of second lifting trolleys is not less than two. Furthermore, the width of the two front supports is greater than the width of the outermost two parallel canopy columns, and the bottom of the front supports is equipped with movable electric vehicle wheels. Furthermore, the rear support is movable on the main beam track. Furthermore, the front support, the middle support, and the rear support are all equipped with hydraulic devices, which can adjust the height of the support; the middle support is connected to the main beam through a rotating fixing assembly.

[0008] The hoisting process of the above-mentioned hoisting equipment for the middle slab of a concrete double-column canopy includes the following steps: S1: The construction of the canopy columns is completed, the installation of the canopy vertical rail beams and roof side panels is completed, and the canopy platform end site is flat and has load-bearing capacity; S2: After the hoisting equipment is installed, the rear support is placed on the top of the second vertical rail beam starting from the platform end, and the front support is placed on the flat ground outside the platform end. The roof track is laid on the top of the beam inside the roof side panel, and the track trolley and double beam gantry are installed on the roof track. S3: Transport the first span of the roof slab to the hoisting location, lift the first span of the roof using the first hoisting assembly, and transport it to the designed position of the first span for placement. S4: The second span of the roof slab is transported to the hoisting position. The second span of the roof is lifted by the first hoisting assembly and transported to the rail trolley. At this time, the rear support is kept stationary, and the front support and main beam are moved synchronously. The movement stops when the middle support is aligned with the second vertical rail beam. The middle support is lowered so that it rests on the top of the second vertical rail beam. Then the rear support is lifted and moved horizontally to the top of the third vertical rail beam and supported firmly. S5: After the middle plate of the third span of the roof is lifted, it is placed horizontally on the track trolley of the first span. The track trolley carries the third span of the roof to the second span. Support members are added to the bottom of the two side beams of the third span of the roof. The support members are supported on the middle plate beam that has been installed in the second span so that the track trolley and the third span of the roof are separated. The double beam gantry is moved to the lifting beam position, the third span of the roof is lifted and moved horizontally to the next span for placement. S6: Repeat step S5 to complete the hoisting of the roof slab in sequence.

[0009] Furthermore, in S1: the construction of the canopy columns is completed, the canopy foundation is backfilled to the elevation of the foundation platform, and the backfilled canopy foundation is capable of supporting heavy-duty vehicles. Furthermore, the first lifting assembly includes two first vertical rails set on the first longitudinal rail of the main beam, and each first vertical rail has two first lifting trolleys, enabling four-point lifting of the roof slab; the second lifting assembly includes two second vertical rails set on the second longitudinal rail of the double beam gantry, and each second vertical rail has two first lifting trolleys, enabling four-point lifting of the roof slab.

[0010] Furthermore, the track trolley and the double-beam gantry are installed on the same roof track. Furthermore, the roof track has two sets of tracks arranged in parallel, with the track trolley installed on the inner track of the roof track and the double-beam gantry installed on the outer track of the roof track. The present invention has achieved the following beneficial effects: The hoisting equipment for the middle slab of a concrete double-column canopy according to the present invention includes: a main beam, a front support, a middle support, a rear support, a first hoisting assembly, a roof track, a track trolley, a double-beam gantry, and a second hoisting assembly. The number of the front support, the middle support, and the rear support are all two, and they are symmetrically arranged on the main beam in a front-to-back order. The middle support is retractable on the main beam. The rear support is supported on the top of the second vertical rail beam starting from the platform end. The front support is supported on the flat ground outside the platform end. The roof track is laid on the top of the inner beam of the roof side slab. The track trolley and the double-beam gantry are both arranged on the roof track. A first forward track is arranged along the extension direction of the main beam, and the first hoisting assembly is arranged on the first forward track. A second forward track is arranged along the extension direction of the double-beam gantry, and the second hoisting assembly is arranged on the second forward track. With the aid of this equipment, the middle slab roof can be hoisted without dismantling the existing track or using a dedicated track vehicle, and it is not constrained by the underground roadbed and does not require the cooperation of the underground construction unit. The front, middle, and rear supports are all equipped with hydraulic height adjustment devices to keep the frame level. Each lifting assembly has four lifting trolleys, which ensures flatness and higher positioning accuracy during lifting by providing four-point hoisting. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the hoisting of the middle slab of a concrete double-column canopy according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the rear support in an embodiment of the present invention; Figure 3 This is a schematic diagram of the front support of an embodiment of the present invention; Figure 4 This is a schematic diagram of the first lifting assembly according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a double-beam gantry according to an embodiment of the present invention.

[0012] Figure label: 1. Main beam; 2. Front support; 3. Middle support; 4. Rear support; 5. Double beam gantry; 6. First lifting trolley; 7. Second lifting trolley; 8. Track trolley; 9. Roof middle plate; 10. Roof side plate.

[0013] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0014] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0015] The following is a reference appendix. Figures 1 to 5 This invention describes the hoisting equipment and method for the middle slab of a concrete double-column canopy according to an embodiment of the present invention. Figure 1 This is a schematic diagram of the hoisting of the roof slab. Figure 2 This is a schematic diagram of the rear support. Figure 3 This is a schematic diagram of the front support. Figure 4 Schematic diagram of the first lifting component. Figure 5 This is a schematic diagram of a double-beam gantry.

[0016] like Figure 1-5 As shown in the figure, this invention discloses a hoisting device for the middle slab of a concrete double-column canopy in a railway passenger station. The device includes: a main beam 1, a front support 2, a middle support 3, a rear support 4, a first hoisting assembly, a roof rail, a rail trolley 8, a double-beam gantry 5, and a second hoisting assembly. The number of the front support 2, the middle support 3, and the rear support 4 are all two, and they are symmetrically arranged on the main beam 1 in a front-to-back order. The middle support 3 is retractable on the main beam 1. The rear support 4 is supported on the top of the second vertical rail beam starting from the platform end. The front support rests on the flat ground outside the platform end. The roof track is laid on the top of the inner beam of the roof side panel 10. The track trolley 8 and the double beam gantry 5 are both mounted on the roof track. A first forward track is provided along the extension direction of the main beam 1, and the first lifting assembly is mounted on the first forward track and can move along the first forward track. A second forward track is provided along the extension direction of the double beam gantry 5, and the second lifting assembly is mounted on the second forward track and can move along the second forward track. With this equipment, the middle slab roof can be hoisted without dismantling the existing track or using a dedicated track vehicle, and it is not restricted by the underground roadbed and does not require the cooperation of the underground construction unit. The front support 2, middle support 3, and rear support 4 are all equipped with hydraulic devices to adjust the height, so that the frame can be kept horizontal.

[0017] In some embodiments, such as Figure 4As shown, the first lifting assembly includes a first vertical rail and a first lifting trolley 6. The first vertical rail is movably disposed on the side of the first longitudinal rail away from the main beam 1, and the first lifting trolley 6 is movably disposed on the side of the first vertical rail away from the first longitudinal rail. There are at least two first lifting trolleys 6. The second lifting assembly includes a second vertical rail and a second lifting trolley 7. The second vertical rail is movably disposed on the side of the second longitudinal rail away from the double-beam gantry 5, and the second lifting trolley 7 is movably disposed on the side of the second vertical rail away from the second longitudinal rail. There are at least two second lifting trolleys 7. Each lifting assembly has four lifting trolleys, which ensures the flatness of the lifting operation and higher positioning accuracy through four-point lifting.

[0018] Furthermore, the width of the two front supports 2 is greater than the width of the outermost two parallel canopy columns, ensuring that the hoisting equipment is not obstructed during its forward movement.

[0019] Furthermore, the bottom of the front support 2 is equipped with movable electric vehicle wheels to facilitate rapid movement of the ground support.

[0020] Furthermore, the rear support 4 can move on the track of the main beam 11, which facilitates the movement of the hoisting equipment after the rear support 4 is disengaged from the top of the second vertical rail beam.

[0021] In another embodiment, the roof track has two sets of tracks arranged side by side, the track trolley 8 is installed on the inner track of the roof track, and the double beam gantry 5 is installed on the outer track of the roof track.

[0022] In some embodiments, the front support 2, the middle support 3, and the rear support 4 are all equipped with hydraulic devices, which can adjust the height of the supports to keep the frame horizontal and stable.

[0023] Furthermore, the intermediate support 3 is connected to the main beam 1 through a rotating fixing assembly, wherein the rotating fixing assembly can be an electric rotating fixing assembly, a pneumatic rotating fixing assembly, a hydraulically driven rotating fixing assembly, etc.

[0024] This invention discloses a hoisting process for the middle slab of a concrete double-column canopy, characterized by the following steps: S1: The construction of the canopy columns is completed, the canopy vertical rail beams and roof side panels 10 are hoisted, and the canopy platform end site is flat and has load-bearing capacity; S2: After the hoisting equipment is installed, the rear support 4 is supported on the top of the second vertical rail beam starting from the platform end, and the front support is supported on the flat ground outside the platform end. The roof track is laid on the top of the beam inside the roof side plate 10, and the track trolley 8 and double beam gantry 5 are installed on the roof track. S3: Transport the first span of the roof slab to the hoisting location, lift the first span of the roof using the first hoisting assembly, and transport it to the designed position of the first span for placement. S4: The second span of the roof slab is transported to the hoisting position. The second span of the roof is lifted by the first hoisting assembly and transported to the track trolley 8. At this time, the rear support 4 is kept stationary, and the front support 2 and the main beam 1 are moved synchronously. The movement stops when the middle support 3 is aligned with the second vertical rail beam. The middle support 3 is lowered so that it supports the top of the second vertical rail beam. Then the rear support 4 is lifted and moved horizontally to the top of the third vertical rail beam and supported firmly. S5: After the middle plate of the third span of the roof is lifted, it is placed horizontally on the track trolley 8 of the first span. The track trolley 8 carries the third span of the roof to the second span. Support members are added to the bottom of the two side beams of the third span of the roof. The support members are supported on the middle plate beam that has been installed in the second span so that the track trolley 8 and the third span of the roof are separated. The double beam gantry 5 is moved to the lifting beam position, the third span of the roof is lifted and moved horizontally to the next span for the beam to be lowered into place. S6: Repeat step S5 to complete the hoisting of the roof slab 9.

[0025] Furthermore, in S1: the construction of the canopy columns is completed, the canopy foundation is backfilled to the elevation of the foundation platform, and the backfilled canopy foundation is capable of supporting heavy-duty vehicles. In some embodiments, the first lifting assembly includes two first vertical rails arranged on the first longitudinal rail of the main beam 1, and the number of first lifting trolleys 6 on each first vertical rail is two, which can achieve four-point lifting of the roof slab 9; the second lifting assembly includes two second vertical rails arranged on the second longitudinal rail of the double beam gantry 5, and the number of first lifting trolleys 6 on each second vertical rail is two, which can achieve four-point lifting of the roof slab 9.

[0026] In another embodiment, the height and width of the double-beam gantry 5 are both smaller than those of the rear support 4, and the double-beam gantry 5 can move under the rear support 4 to facilitate the rapid lifting of the roof slab 9.

[0027] In another embodiment, the track trolley 8 and the double beam gantry 5 are installed on the same roof track and share the same roof track. When the track trolley transports the roof middle plate 9 to the designated position, it alternately supports the middle plate. After that, it exits the track trolley and the double beam gantry 5 lifts the roof middle plate 9 and then moves forward to the hoisting span.

[0028] In another embodiment, the roof track has two sets of tracks arranged side by side. The track trolley 8 is installed on the inner track of the roof track, and the double-beam gantry 5 is installed on the outer track of the roof track. The roof panel 9 on the track trolley 8 can be directly lifted by the double-beam gantry 5 without needing to be lifted off the trolley for transfer, making the operation more convenient and saving time.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0030] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a connection that allows communication between them; 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 invention according to the specific circumstances.

[0032] In this invention, 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," "over," and "on top" of 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.

[0033] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0034] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A hoisting device for the middle slab of a concrete double-column canopy in a railway passenger station, characterized in that, include: The system comprises a main beam, a front support, a middle support, a rear support, a first lifting assembly, a roof track, a track trolley, a double-beam gantry, and a second lifting assembly. The front support, the middle support, and the rear support are each in pairs and are symmetrically arranged on the main beam in a front-to-back sequence. The middle support is retractable and mounted on the main beam. The rear support rests on the top of the second vertical rail beam starting at the platform end. The front support rests on the flat ground outside the platform end. The roof track is laid on the top of the inner beam of the roof side panel. The track trolley and the double-beam gantry are both mounted on the roof track. A first forward track is provided along the extension direction of the main beam, and the first lifting assembly is mounted on the first forward track. A second forward track is provided along the extension direction of the double-beam gantry, and the second lifting assembly is mounted on the second forward track. The first lifting assembly includes a first vertical rail and a first lifting trolley. The first vertical rail is movably disposed on the side of the first longitudinal rail away from the main beam, and the first lifting trolley is movably disposed on the side of the first vertical rail away from the first longitudinal rail. The number of first lifting trolleys is not less than two. The second lifting assembly includes a second vertical rail and a second lifting trolley. The second vertical rail is movably disposed on the side of the second longitudinal rail away from the double-beam gantry. The second lifting trolley is movably disposed on the side of the second vertical rail away from the second longitudinal rail. The number of second lifting trolleys is not less than two. The width of the two front supports is greater than the width of the outermost two parallel canopy columns. The bottom of the front supports is equipped with movable electric wheels. The rear support can move on the main beam rail. The front supports, the middle supports, and the rear supports are all equipped with hydraulic devices, which can adjust the height of the supports. The intermediate support is connected to the main beam via a rotating fixing assembly.

2. A hoisting process for a hoisting device for the middle slab of a railway passenger station concrete double-column canopy according to claim 1, characterized in that, Includes the following steps: S1: The construction of the canopy columns is completed, the installation of the canopy vertical rail beams and roof side panels is completed, and the canopy platform end site is flat and has load-bearing capacity; S2: After the hoisting equipment is installed, the rear support is placed on the top of the second vertical rail beam starting from the platform end, and the front support is placed on the flat ground outside the platform end. The roof track is laid on the top of the beam inside the roof side panel, and the track trolley and double beam gantry are installed on the roof track. S3: Transport the first span of the roof slab to the hoisting location, lift the first span of the roof using the first hoisting assembly, and transport it to the designed position of the first span for placement. S4: The second span of the roof slab is transported to the hoisting position. The second span of the roof is lifted by the first hoisting assembly and transported to the rail trolley. At this time, the rear support is kept stationary, and the front support and main beam are moved synchronously. The movement stops when the middle support is aligned with the second vertical rail beam. The middle support is lowered so that it rests on the top of the second vertical rail beam. Then the rear support is lifted and moved horizontally to the top of the third vertical rail beam and supported firmly. S5: After the middle plate of the third span of the roof is lifted, it is placed horizontally on the track trolley of the first span. The track trolley carries the third span of the roof to the second span. Support members are added to the bottom of the beams on both sides of the third span of the roof. The support members are supported on the middle plate beam that has been installed in the second span so that the track trolley and the third span of the roof are separated. The double beam gantry is moved to the lifting beam position, the third span of the roof is lifted and moved horizontally to the next span for the beam to be lowered into place. S6: Repeat step S5 to complete the hoisting of the roof slab in sequence.

3. The hoisting process according to claim 2, characterized in that, S1: The construction of the canopy columns is completed, the canopy foundation is backfilled to the elevation of the foundation platform, and the backfilled canopy foundation is suitable for heavy-duty vehicles to travel on.

4. The hoisting process according to claim 2, characterized in that, The first lifting assembly includes two first vertical rails set on the first longitudinal rail of the main beam, and each first vertical rail has two first lifting trolleys, enabling four-point lifting of the roof slab; the second lifting assembly includes two second vertical rails set on the second longitudinal rail of the double beam gantry, and each second vertical rail has two first lifting trolleys, enabling four-point lifting of the roof slab.

5. The hoisting process according to claim 2, characterized in that, The track trolley and the double-beam gantry are installed on the same roof track.

6. The hoisting process according to claim 2, characterized in that, The roof track has two sets of tracks arranged in parallel. The track trolley is installed on the inner track of the roof track, and the double beam gantry is installed on the outer track of the roof track.

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