A hybrid structure for an elevated unloading platform in a closed storage facility

Abstract

The present invention discloses a hybrid structure for an elevated unloading platform in an enclosed storage facility. The structure comprises a primary concrete structure, including concrete cantilever columns, concrete cantilever beams, and longitudinal concrete beams, and a secondary steel platform structure. The secondary steel platform structure comprises a steel plate assembly and multiple steel beams, with the steel plate assembly positioned above each steel beam and interconnected to each concrete cantilever beam via the steel beams. This hybrid structure significantly reduces the use of scaffolding, facilitating construction, reducing maintenance costs, shortening construction time, and lowering the overall cost.

Description

Technical Field

[0001] The invention belongs to the technical field of building structures, and in particular relates to a hybrid structure for an elevated unloading vehicle platform in a closed material warehouse. Background Art

[0002] In a closed material warehouse equipped with an elevated unloading vehicle (or stacker), the platform elevation is often very high, generally above 20m, or even up to 30m to 40m. The unloading vehicle equipment platform is generally made of full concrete structure, such as Figure 1 As shown, the all-concrete structure usually includes a longitudinal concrete beam 01, multiple concrete cantilever columns 02, multiple concrete cantilever beams 03, a concrete platform slab 04, and four platform beams 05 and two platform beams 06 located below the concrete platform slab 04. During construction, it is necessary to first tie up a concrete scaffolding, then make a formwork on the concrete scaffolding, lay the steel bars, pour the concrete on site, and carry out maintenance operations. After that, it is necessary to remove the formwork and the concrete scaffolding. During the entire construction process, due to the need for construction formwork, ground-based or high-altitude concrete scaffolding is usually set up. The construction is very difficult, the cost of measures is high, the construction period is long, and the total cost is high. In addition, all concrete columns, beams and floor slabs need to be tied up with steel bars and concrete poured on site, which also increases the construction period.

[0003] Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a hybrid structure for an elevated unloading vehicle platform in a closed material warehouse to overcome the defects of the prior art. Summary of the Invention

[0004] The purpose of the present invention is to provide a hybrid structure for an elevated unloading vehicle platform in a closed material warehouse, which can greatly reduce the use of scaffolding, make construction more convenient, have low measures costs, shorten construction period and low total construction cost.

[0005] The object of the present invention is achieved by providing a hybrid structure for an elevated unloading vehicle platform in a closed material storage, comprising:

[0006] The main concrete structure includes a horizontally arranged longitudinal concrete beam, a plurality of vertically arranged concrete cantilever columns spaced along the length of the longitudinal concrete beam below the longitudinal concrete beam, and a horizontally arranged concrete cantilever beam at the upper end of each concrete cantilever column, wherein the length direction of the concrete cantilever beam is perpendicular to the length direction of the longitudinal concrete beam;

[0007] And a steel platform substructure arranged above the concrete main structure, the steel platform substructure includes a steel plate assembly and multiple steel beams, the length directions of the steel plate assembly and each steel beam are parallel to the length direction of the longitudinal concrete beam, the steel plate assembly is arranged above each steel beam and is connected to each concrete cantilever beam through each steel beam.

[0008] In a preferred embodiment of the present invention, the steel plate assembly includes an intermediate steel platform plate arranged above the longitudinal concrete beam, and two unloading truck steel platform plates are provided on both sides of the intermediate steel platform plate. The intermediate steel platform plate and the two unloading truck steel platform plates are respectively connected to each concrete cantilever beam through corresponding steel beams.

[0009] In a preferred embodiment of the present invention, the steel plate assembly includes a steel floor decking plate arranged above the longitudinal concrete beam, a concrete plate is arranged on the steel floor decking plate, and two unloading truck steel platform plates are arranged on both sides of the steel floor decking plate. The steel floor decking plate and the two unloading truck steel platform plates are respectively connected to each concrete cantilever beam through corresponding steel beams.

[0010] In a preferred embodiment of the present invention, a preset gap is left between the steel floor deck and the steel platform plate of each unloading vehicle.

[0011] In a preferred embodiment of the present invention, each steel beam is arranged on the top surface of the concrete cantilever beam, and a plurality of embedded parts are provided on the top surface of each concrete cantilever beam. The bottom surface of each steel beam is fixedly connected to the top surface of the corresponding concrete cantilever beam through the corresponding embedded parts, and the top surface of each steel beam is fixedly connected to the bottom surface of the steel plate assembly.

[0012] In a preferred embodiment of the present invention, a through hole is provided on the steel plate assembly at a position corresponding to each concrete cantilever column.

[0013] In a preferred embodiment of the present invention, each steel beam includes a plurality of sub-steel beams connected between two adjacent concrete cantilever beams along its length direction, and the steel plate assembly includes a plurality of sub-steel plate assemblies covering the top surface of the sub-steel beams; a plurality of embedded parts are provided on the side of each concrete cantilever beam, and both ends of each sub-steel beam are fixedly connected to the side of the corresponding concrete cantilever beam through the corresponding embedded parts, and the top surface of each sub-steel beam is fixedly connected to the bottom surface of the corresponding sub-steel plate assembly.

[0014] In a preferred embodiment of the present invention, the multiple steel beams include two platform steel beams and four unloading truck steel beams. The two platform steel beams are symmetrically arranged on both sides of the longitudinal concrete beam, and two unloading truck steel beams are respectively arranged on the outside of the two platform steel beams; each unloading truck steel platform plate is respectively connected to the two unloading truck steel beams on the same side, and the middle steel platform plate is connected to the two platform steel beams and the two unloading truck steel beams close to the longitudinal concrete beam.

[0015] In a preferred embodiment of the present invention, the multiple steel beams include four platform steel beams and four unloading truck steel beams. The four platform steel beams are symmetrically arranged on both sides of the longitudinal concrete beam, and two unloading truck steel beams are respectively arranged on the outside of the four platform steel beams; each unloading truck steel platform plate is respectively connected to the two unloading truck steel beams on the same side, and the steel floor deck is connected to the four platform steel beams.

[0016] In a preferred embodiment of the present invention, each steel beam is an I-beam or a box beam.

[0017] As described above, the hybrid structure of the elevated unloading platform for closed material storage in the present invention improves the traditional unloading platform using a full concrete structure into a hybrid form of "concrete main structure + steel platform secondary structure". The main structure still uses a concrete structure, which can still ensure the load-bearing strength of the entire structure; the secondary structure mainly uses a steel structure, which does not need to be cast on site, nor does it need to set up a full-house scaffolding on the ground or high in the air. The steel structure can be prefabricated in advance and directly fixed on the main structure. Therefore, only a small amount of scaffolding is required for the construction of the concrete main structure, and no scaffolding is required for the construction of the secondary structure. Compared with the full concrete structure in the prior art, the amount of scaffolding used is greatly reduced, which is only less than 10% of the existing amount, or even less than 5%, which greatly reduces the construction difficulty and measures costs, shortens the construction period, and reduces the total cost; at the same time, the steel platform secondary structure mainly uses a steel structure, which can be prefabricated in advance and directly installed on site, further shortening the construction period and making construction and installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0019] Figure 1 : It is a structural diagram of the unloading vehicle equipment platform using a full concrete structure in the existing technology.

[0020] Figure 2 : A top view of the main concrete structure in the hybrid structure for the enclosed material storage elevated unloading vehicle platform provided by the present invention.

[0021] Figure 3 :for Figure 2 Cross-sectional view along AA direction.

[0022] Figure 4 :for Figure 2 Cross-sectional view along direction BB.

[0023] Figure 5 : A structural schematic diagram of the hybrid structure provided by the present invention for a closed material warehouse elevated unloading vehicle platform when the steel plate assembly adopts the first structure and the steel beam adopts the first connection method.

[0024] Figure 6 :for Figure 5 Enlarged view of the structure of the middle steel platform plate.

[0025] Figure 7: A structural schematic diagram of the hybrid structure provided by the present invention for a closed material warehouse elevated unloading vehicle platform when the steel plate assembly adopts the first structure and the steel beam adopts the second connection method.

[0026] Figure 8 : A structural schematic diagram of the hybrid structure provided by the present invention for a closed material warehouse elevated unloading vehicle platform when the steel plate assembly adopts the second structure and the steel beam adopts the first connection method.

[0027] Figure 9 :for Figure 8 A magnified view of the structure of the steel floor deck and concrete slab.

[0028] Figure 10 : A structural schematic diagram of the hybrid structure provided by the present invention for a closed material warehouse elevated unloading vehicle platform when the steel plate assembly adopts the second structure and the steel beam adopts the second connection method.

[0029] Description of Figure Numbers:

[0030] Existing technology:

[0031] 01. Longitudinal concrete beam; 02. Concrete cantilever column; 03. Concrete cantilever beam; 04. Concrete platform slab; 05. Platform main beam; 06. Platform small beam.

[0032] The present invention:

[0033] 1. Concrete main structure;

[0034] 11. Longitudinal concrete beam; 12. Concrete cantilever column; 13. Concrete cantilever beam;

[0035] 2. Steel plate assembly;

[0036] 21. Middle steel platform plate; 22. Unloading car steel platform plate; 23. Steel floor deck; 24. Concrete slab; 25. Through hole;

[0037] 3. Steel beams;

[0038] 31. Platform steel beam; 32. Unloading car steel beam; 33. Track. DETAILED DESCRIPTION

[0039] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0040] like Figures 2 to 10As shown, this embodiment provides a hybrid structure for an elevated unloading platform for an enclosed material storage, comprising a primary concrete structure 1 and a steel platform secondary structure disposed above the primary concrete structure 1. The primary concrete structure 1 comprises a horizontally disposed longitudinal concrete beam 11, below which a plurality of vertically disposed concrete cantilever columns 12 are spaced apart along the longitudinal direction of the longitudinal concrete beam 11. A horizontally disposed concrete cantilever beam 13 is disposed at the upper end of each concrete cantilever column 12, the length of the concrete cantilever beam 13 being perpendicular to the length of the longitudinal concrete beam 11. The steel platform secondary structure comprises a steel plate assembly 2 and a plurality of steel beams 3. The lengths of the steel plate assembly 2 and each steel beam 3 are parallel to the length of the longitudinal concrete beam 11. The steel plate assembly 2 is disposed above each steel beam 3 and is interconnected with each concrete cantilever beam 13 via each steel beam 3.

[0041] Among them, each steel beam 3 is preferably an I-beam or a box beam. Here, the concrete main structure 1 is the same as that in the prior art. Figure 1 The concrete cantilever column 02, longitudinal concrete beam 01, and multiple concrete cantilever beams 03 shown in the figure have the same structure and function, and are mainly used for bearing loads. They are formed by pouring concrete on site during construction. It can be understood that each concrete cantilever beam 13 is arranged in an axisymmetric manner relative to the longitudinal concrete beam 11. Generally, the top surface of the longitudinal concrete beam 11 is flush with the top surface of the concrete cantilever beam 13. The function of the above-mentioned steel plate assembly 2 is the same as Figure 1 The concrete platform slab 04 shown in FIG has the same function, wherein the middle part is mainly used for people to pass through, and the two side parts are mainly used for unloading vehicles. Figure 1 The platform beam 05 and the platform beam 06 shown in the figure have the same function, which is mainly to serve as vertical supporting components.

[0042] Therefore, the hybrid structure used for the elevated unloading platform of the closed material warehouse in this embodiment improves the traditional unloading platform using a full concrete structure into a hybrid form of "concrete main structure 1 + steel platform secondary structure". The main structure still uses a concrete structure and can still ensure the load-bearing strength of the entire structure; the secondary structure mainly uses a steel structure, which does not need to be cast on site, nor does it need to set up a full-house scaffolding on the ground or in the air. The steel structure can be prefabricated in advance and directly fixed on the main structure. Therefore, only a small amount of scaffolding is required for the construction of the concrete main structure 1, and no scaffolding is required for the construction of the secondary structure. Compared with the full concrete structure in the prior art, the amount of scaffolding used is greatly reduced, which is only less than 10% of the existing amount, or even less than 5%. This greatly reduces the construction difficulty and measures costs, shortens the construction period, and reduces the total cost. At the same time, the steel platform secondary structure mainly uses a steel structure, which can be prefabricated in advance and directly installed on site, further shortening the construction period and making construction and installation more convenient.

[0043] In a specific implementation, the above-mentioned steel plate assembly 2 can be implemented in the following two structural ways:

[0044] The first type: adopting the structural form of "all-steel platform plate"

[0045] like Figure 5 and Figure 7 As shown, the steel plate assembly 2 includes an intermediate steel platform plate 21 disposed above the longitudinal concrete beam 11. Two unloader steel platform plates 22 are disposed on either side of the intermediate steel platform plate 21. The intermediate steel platform plate 21 and the two unloader steel platform plates 22 are interconnected with the concrete cantilever beams 13 via corresponding steel beams 3. The intermediate steel platform plate 21 is preferably arranged axially symmetrically with respect to the longitudinal concrete beam 11, and the two unloader steel platform plates 22 are preferably arranged symmetrically with respect to the longitudinal concrete beam 11.

[0046] The second type: adopting the structural form of "steel platform plate + steel floor deck 23 cast-in-place concrete slab 24"

[0047] like Figure 8 and Figure 10 As shown, the steel plate assembly 2 includes a steel floor decking slab 23 arranged above the longitudinal concrete beam 11, a concrete slab 24 is provided on the steel floor decking slab 23, and two unloading truck steel platform plates 22 are provided on both sides of the steel floor decking slab 23. The steel floor decking slab 23 and the two unloading truck steel platform plates 22 are respectively connected to each concrete cantilever beam 13 through the corresponding steel beam 3.

[0048] The steel floor decking 23 is preferably arranged axially symmetrically with respect to the longitudinal concrete beam 11, and the two unloading truck steel platform plates 22 are preferably arranged symmetrically with respect to the longitudinal concrete beam 11. The structure of the steel floor decking 23 here is the existing technology and can itself serve as a formwork. Therefore, concrete can be directly cast on the steel floor decking 23 to form the above-mentioned concrete slab 24, without the need for on-site formwork and scaffolding. In addition, when the steel plate assembly 2 adopts the second structure, since the two unloading truck steel platform plates 22 are mainly used for unloading trucks, and the spacing between each concrete cantilever beam 13 is large, when the unloading truck passes through the unloading truck steel platform plate 22, the steel beam 3 below it will generate a certain amount of vibration. Therefore, in order to reduce the impact of this vibration on the concrete slab 24, a preset gap is left between the steel floor decking 23 and each unloading truck steel platform plate 22. The preset gap is preferably 20 to 30 mm.

[0049] Regarding the two aforementioned structures of the steel plate assembly 2, the intermediate steel platform plate 21, the unloading vehicle steel platform plate 22, and the steel floor deck 23 are all prefabricated. After the construction of the main concrete structure 1 is completed and the steel beams 3 are fixed, the steel plates can be directly fixed to the corresponding steel beams 3, making construction more convenient and quick. The second structure described above is less expensive than the first structure. The specific structure of the steel plate assembly 2 is determined according to actual needs.

[0050] Furthermore, the steel beam 3 can be connected to the concrete cantilever beam 13 in the following two ways:

[0051] Type I: Each steel beam 3 is located above the concrete cantilever beam 13

[0052] like Figure 5 and Figure 8 As shown, each steel beam 3 is arranged on the top surface of the concrete cantilever beam 13, and a plurality of embedded parts are provided on the top surface of each concrete cantilever beam 13. The bottom surface of each steel beam 3 is fixedly connected to the top surface of the corresponding concrete cantilever beam 13 through the corresponding embedded parts, and the top surface of each steel beam 3 is fixedly connected to the bottom surface of the steel plate assembly 2.

[0053] The number of embedded parts on each concrete cantilever beam 13 is the same as the number of steel beams 3. These embedded parts are preferably embedded steel plates and are pre-embedded in the concrete cantilever beam 13 during the construction of the concrete main structure 1. After the construction of the concrete main structure 1 is completed, the bottom surface of each steel beam 3 is first welded to the corresponding embedded part, and then the steel plate assembly 2 is welded to the top surface of the corresponding steel beam 3 to complete the installation, which is convenient and fast.

[0054] It can be understood that when the steel plate assembly 2 adopts the first structure, Figure 5 As shown, the top surface of each steel beam 3 is fixedly connected to the bottom surface of the intermediate steel platform plate 21 or the unloading vehicle steel platform plate 22. When the steel plate assembly 2 adopts the second structure above, as shown in FIG. Figure 8 As shown, the top surface of each steel beam 3 is fixedly connected to the bottom surface of the steel floor deck 23 or the unloading vehicle steel platform plate 22.

[0055] In addition, when the steel beam 3 adopts the first connection method, the top surface of the concrete cantilever column 12 is generally higher than the top surface of the concrete cantilever beam 13; when the steel plate assembly 2 adopts the first structure, Figure 5 As shown, the top surfaces of the middle steel platform plate 21 and the unloading vehicle steel platform plate 22 are substantially flush with the top surface of the concrete cantilever column 12; when the steel plate assembly 2 adopts the second structure, as shown in FIG. Figure 8 As shown, the top surface of the concrete slab 24 is flush with the top surface of the concrete cantilever column 12 , and the top surface of the concrete slab 24 is substantially flush with the top surface of the steel platform plate 22 of the unloading vehicle.

[0056] Since the intermediate steel platform plate 21 and the steel floor deck 23 are both a whole plate, in order to facilitate installation, a through hole 25 is opened on the steel plate assembly 2 at the position corresponding to each concrete cantilever column 12. Specifically, when the steel plate assembly 2 adopts the first structure, Figure 6 As shown, a through hole 25 is provided in the middle steel platform plate 21 corresponding to each concrete cantilever column 12; when the steel plate assembly 2 adopts the second structure, as shown in FIG. Figure 9 As shown, a through hole 25 is opened in the steel floor decking slab 23 and the concrete slab 24 at a position corresponding to each concrete cantilever column 12 .

[0057] Type II: Each steel beam 3 is flatly connected

[0058] like Figure 7 and Figure 10 As shown, each steel beam 3 comprises multiple sub-steel beams connected along its length between two adjacent concrete cantilever beams 13. The steel plate assembly 2 comprises multiple sub-steel plate assemblies covering the top surfaces of the sub-steel beams. Multiple embedded parts are provided on the side of each concrete cantilever beam 13. Each sub-steel beam's ends are fixedly connected to the side of the corresponding concrete cantilever beam 13 via corresponding embedded parts. The top surface of each sub-steel beam is fixedly connected to the bottom surface of the corresponding sub-steel plate assembly.

[0059] The number of embedded parts on one side of each concrete cantilever beam 13 is the same as the number of steel beams 3. The concrete cantilever beams 13 at both ends of the longitudinal concrete beam 11 only need embedded parts on one side, while the remaining concrete cantilever beams 13 require embedded parts on both sides. These embedded parts are preferably embedded steel plates, which are pre-embedded in the concrete cantilever beams 13 during construction of the main concrete structure 1. After construction of the main concrete structure 1 is completed, the ends of each sub-steel beam are first welded to the corresponding embedded parts, and then each sub-steel plate assembly is welded to the top surface of the corresponding sub-steel beam to complete the installation, which is convenient and fast.

[0060] It can be understood that when the steel plate assembly 2 adopts the first structure described above, the intermediate steel platform plate 21 includes multiple sub-intermediate steel platform plates covering and connected to the top surface of the sub-steel beam, and each unloading vehicle steel platform plate 22 includes multiple sub-unloading vehicle steel platform plates covering and connected to the top surface of the sub-steel beam. The multiple sub-intermediate steel platform plates and the multiple sub-unloading vehicle steel platform plates constitute the multiple sub-steel plate assemblies described above. When the steel plate assembly 2 adopts the second structure described above, the steel floor decking plate 23 includes multiple sub-steel floor decking plates covering and connected to the top surface of the sub-steel beam, and each unloading vehicle steel platform plate 22 includes multiple sub-unloading vehicle steel platform plates covering and connected to the top surface of the sub-steel beam. The multiple sub-steel floor decking plates and the multiple sub-unloading vehicle steel platform plates constitute the multiple sub-steel plate assemblies described above. That is to say, when the steel beam 3 adopts the second connection method, each sub-steel beam and each sub-steel plate assembly is separated by each concrete cantilever beam 13, and each sub-steel plate assembly spans each concrete cantilever beam 13 and is arranged on the corresponding sub-steel beam. The top surface of each concrete cantilever beam 13 serves as the top surface of the platform, which can reduce the use of materials.

[0061] In addition, when the steel beam 3 adopts the second connection mode, the top surface of the general concrete cantilever column 12 is flush with the top surface of the concrete cantilever beam 13, and the top surface of the sub-steel plate assembly is basically flush with the top surface of the concrete cantilever beam 13; when the steel plate assembly 2 adopts the first structure above, Figure 7 As shown, the top surface of the middle steel platform plate 21 is flush with the top surface of the unloading vehicle steel platform plate 22; when the steel plate assembly 2 adopts the second structure, as shown in FIG. Figure 10 As shown, the top surface of the concrete slab 24 is flush with the top surface of the concrete cantilever beam 13 , and the top surface of the concrete slab 24 is substantially flush with the top surface of the steel platform plate 22 of the unloading vehicle.

[0062] Regarding the two aforementioned connection methods for the steel beams 3, each steel beam 3 is prefabricated in advance. After the construction of the main concrete structure 1 is completed, each steel beam 3 can be directly fixed to the corresponding concrete cantilever beam 13 using the corresponding embedded parts, which is simple and convenient. The aforementioned connection method I is more convenient to install than the second connection method; the second connection method can save more materials and is lower in cost compared to the first connection method. The specific connection method for the steel beams 3 is determined according to actual needs.

[0063] It should be noted that the above two structures of the steel plate assembly 2 and the above two connection methods of the steel beam 3 can be freely combined, such as Figure 5 、 Figure 7 、 Figure 8 and Figure 10 Of course, other structural methods can be used as needed, as long as it is convenient for the steel platform secondary structure to be connected to the concrete main structure 1. This embodiment is only an example.

[0064] Furthermore, the number of the steel beams 3 can be determined as needed. For example, in this embodiment:

[0065] When the steel plate assembly 2 adopts the first structure, preferably, Figure 5 and Figure 7 As shown, the multiple steel beams 3 include two platform steel beams 31 and four unloading vehicle steel beams 32. The two platform steel beams 31 are symmetrically arranged on both sides of the longitudinal concrete beam 11, and two unloading vehicle steel beams 32 are respectively arranged on the outside of the two platform steel beams 31. Each unloading vehicle steel platform plate 22 is connected to the two unloading vehicle steel beams 32 on the same side. The middle steel platform plate 21 is connected to the two platform steel beams 31 and the two unloading vehicle steel beams 32 near the longitudinal concrete beam 11.

[0066] When the steel plate assembly 2 adopts the second structure, preferably, Figure 8 and Figure 10 As shown, the multiple steel beams 3 include four platform steel beams 31 and four dump truck steel beams 32. The four platform steel beams 31 are symmetrically arranged on both sides of the longitudinal concrete beam 11, and two dump truck steel beams 32 are arranged on the outside of each of the four platform steel beams 31 (that is, two dump truck steel beams 32 are arranged on the outside of the platform steel beams 31 on both sides of the longitudinal concrete beam 11). Each dump truck steel platform plate 22 is connected to the two dump truck steel beams 32 on the same side, and the steel floor deck 23 is connected to all four platform steel beams 31.

[0067] Among them, for the above two numbers of steel beams 3 structures, the outer side of the platform steel beam 31 refers to the side of the platform steel beam 31 away from the longitudinal concrete beam 11. Since the unloading vehicle steel platform plate 22 is used for unloading vehicles, tracks 33 are also provided on the four unloading vehicle steel beams 32.

[0068] More preferably, because the unloading truck steel platform plate 22 is primarily used for unloading trucks, while the intermediate steel platform plate 21 or concrete slab 24 is primarily used for people, the intermediate steel platform plate 21 or concrete slab 24 needs to bear less load than the unloading truck steel platform plate 22. Therefore, to further save materials, when the steel plate assembly 2 adopts the first structure described above, the two platform steel beams 31 are small beams, and the four unloading truck steel beams 32 are large beams. When the steel plate assembly 2 adopts the second structure described above, the four platform steel beams 31 are small beams, and the four unloading truck steel beams 32 are large beams.

[0069] like Figure 5 and Figure 8 As shown, the vertical height of the small beam is generally smaller than the vertical height of the large beam. At this time, the steel beam 3 adopts the first connection method. In order to facilitate the connection between the bottom surfaces of the two small beams and the concrete cantilever beam 13, two columns (not shown in the figure, for example, I-beams) can be fixed at both ends of the small beam, and then connected to the embedded parts on the concrete cantilever beam 13 through the columns.

[0070] In summary, the hybrid structure used for the elevated unloading platform of the closed material warehouse in this embodiment adopts the structural method of "concrete main structure 1 + steel platform secondary structure". Its main structure adopts concrete structure, and the platform secondary structure mainly adopts steel structure. This avoids the shortcomings of high construction measures costs, full on-site pouring of concrete, long construction period, and high total cost brought about by the construction of traditional elevated unloading platform full concrete platforms. This hybrid structure has the significant advantages of clear structural force transmission, reliable force performance, convenient construction and installation, low measures costs, short construction period, and low cost, and has good market application value. By comparison, compared with the traditional all-concrete structure, this hybrid structure can save more than 20% of the cost and shorten the construction period by more than 25%.

[0071] The above is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention.

Claims

1. A hybrid structure for an elevated unloading platform in a closed storage facility, characterized in that: include: A concrete main structure, the concrete main structure comprising a horizontally arranged longitudinal concrete beam, a plurality of vertically arranged concrete cantilever columns spaced apart along the length of the longitudinal concrete beam below the longitudinal concrete beam, a horizontally arranged concrete cantilever beam being provided at the upper end of each of the concrete cantilever columns, the length direction of the concrete cantilever beam being perpendicular to the length direction of the longitudinal concrete beam; and a steel platform substructure provided above the concrete main structure, the steel platform substructure comprising a steel plate assembly and a plurality of steel beams, the length directions of the steel plate assembly and each of the steel beams being parallel to the length direction of the longitudinal concrete beams, the steel plate assembly being provided above each of the steel beams and interconnected with each of the concrete cantilever beams through each of the steel beams; In which, the steel plate assembly includes a steel floor decking plate arranged above the longitudinal concrete beam, a concrete plate is arranged on the steel floor decking plate, and two unloading truck steel platform plates are arranged on both sides of the steel floor decking plate, and the steel floor decking plate and the two unloading truck steel platform plates are respectively connected to each other through the corresponding steel beams and each concrete cantilever beam; a preset gap is left between the steel floor decking plate and each unloading truck steel platform plate; each steel beam includes a plurality of sub-steel beams connected between two adjacent concrete cantilever beams along its length direction, and the steel plate assembly includes a plurality of sub-steel plate assemblies covering the top surface of the sub-steel beams; a plurality of embedded parts are provided on the side of each concrete cantilever beam, and both ends of each sub-steel beam are fixedly connected to the side surface of the corresponding concrete cantilever beam through the corresponding embedded parts, and the top surface of each sub-steel beam is fixedly connected to the bottom surface of the corresponding sub-steel plate assembly.

2. The hybrid structure for a closed material storage elevated unloading vehicle platform according to claim 1, characterized in that: The multiple steel beams include four platform steel beams and four unloading truck steel beams. The four platform steel beams are symmetrically arranged on both sides of the longitudinal concrete beam, and two unloading truck steel beams are respectively arranged on the outside of the four platform steel beams; each unloading truck steel platform plate is respectively connected to the two unloading truck steel beams on the same side, and the steel floor deck is connected to the four platform steel beams.

3. The hybrid structure for a closed material storage elevated unloading vehicle platform according to claim 1, characterized in that: Each of the steel beams is an I-beam or a box beam.

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