Supporting device for preassembly and transportation of steel structure column and using method of supporting device

Abstract

According to the supporting device for preassembly and transportation of the steel structure column and the using method of the supporting device, the shear keys are effectively fixed, so that a steel structure is convenient to assemble and stable in structure. The foundation comprises a supporting panel, a foundation bottom plate, reinforcing rib plates and clamping plate assemblies. The supporting panel is located above the foundation slab, the supporting panel and the foundation slab are fixed together through the reinforcing rib plate, and the supporting panel is used for placing a steel structure column; a mounting groove hole is formed in the supporting panel, a containing cavity used for containing the shear key is formed between the supporting panel and the foundation bottom plate, and the containing cavity is located below the mounting groove hole; the clamping plate assembly is arranged on the side face of the installation groove hole and comprises a base plate, an upper clamping plate and a fastener. The upper clamping plate is fixed to the base plate, and the base plate and the supporting panel are connected and fixed through a fastener.

Description

Technical Field

[0001] The invention relates to a supporting device for preassembling and transporting a steel structure column and a use method thereof. Background Art

[0002] Modular construction has been widely recognized and applied as an important means to improve the quality of engineering construction, speed up the progress of engineering construction, and realize the intelligent and digital installation of engineering construction. In recent years, more and more overseas engineering bidding processes have put forward requirements for modular integration of various equipment, pipelines, instruments and their supporting structures. How to achieve modular design, manufacturing, assembly and shipment of large equipment, long-distance pipe corridors in factory areas, etc. has become a major problem that needs to be solved in the new era of engineering.

[0003] Steel structure is widely used in various industrial projects due to its advantages of lighter weight, higher strength and rigidity, simple construction and fast installation. As an important part of modular construction, pre-assembly of steel structure has prominent advantages in some overseas projects with problems such as high labor costs and poor construction level.

[0004] Steel structure columns, as the basic components of the entire steel structure system, need to be designed to consider forces including axial force, bending moment, shear force, torque, earthquake action, etc. When the shear force exceeds the friction between the column foot and the foundation concrete, the steel structure column needs to be equipped with a shear key. Usually, the shear key is made of thicker channel steel and I-beam vertically welded on the horizontal plate at the bottom of the column foot. During the later construction, it is buried in the shear groove reserved in the concrete foundation and is generally poured twice with micro-expansion concrete. As shown in the Chinese patent application number 202010624232.X, named Shear Key Installation Structure and Installation Method.

[0005] In a foreign city waste incineration and utilization project, the applicant required modular assembly and shipment of all equipment and steel structures according to the modular construction requirements of the project. This project is located in a coastal area, and the structure needs to withstand large wind loads. Shear keys are set on the steel structure columns. During the pre-assembly and transportation process, because the assembly site and the transport cargo ship did not have the same structural column foundation as the actual project, the shear keys could not be effectively fixed, resulting in assembly difficulties and structural instability. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a rationally designed support device for preassembly and transportation of steel structure columns and a method for using the same, wherein the shear keys are effectively fixed, making the steel structure easy to assemble and having a stable structure.

[0007] The technical solution adopted by the present invention to solve the above-mentioned problem is: a support device for pre-assembly and transportation of steel structure columns, characterized in that: it includes a support panel, a basic bottom plate, a reinforcing rib plate and a pallet assembly; the support panel is located above the basic bottom plate, the support panel is fixed to the basic bottom plate through the reinforcing rib plate, and the support panel is used to place the steel structure column; an installation slot is opened on the support panel, and a accommodating cavity for accommodating a shear key is provided between the support panel and the basic bottom plate, and the accommodating cavity is located below the installation slot; the pallet assembly is arranged on the side of the installation slot, and includes a base plate, an upper pallet plate and a fastener; the upper pallet plate is fixed to the base plate, and the base plate and the support panel are connected and fixed by fasteners.

[0008] The support panel, the base bottom plate and the reinforcing rib plate described in the present invention are all fixed by manual arc welding.

[0009] The height of the reinforcing ribs described in the present invention is consistent with the height of the shear keys of the steel structure columns.

[0010] The reinforcing ribs described in the present invention are multiple and evenly distributed between the supporting panel and the basic bottom plate.

[0011] The fastener described in the present invention is a bolt.

[0012] The card board components described in the present invention are multiple and relatively distributed on both sides of the installation slot.

[0013] The card board assembly of the present invention further comprises an insulating gasket, which is fixed on the bottom of the upper card board.

[0014] The area S2 of the foundation bottom plate of the present invention is consistent with the supporting panel 1, and is checked according to the foundation ground bearing capacity N2, the axial force N1 and the area S1 of the column foot bottom plate of the steel structure column to ensure that N1 / S1≤N2 / S2.

[0015] The present invention comprises the following steps: When the steel structure is pre-assembled, the support device is placed on a horizontal ground, the steel structure column is lifted by a lifting device and placed on the support panel, and the shear key of the steel structure column is inserted into the installation slot and the accommodating cavity, and the deadweight of the steel structure column is used to maintain stability; After the steel structure is pre-assembled and before shipment, the pallet assembly is installed, the base plate is fixed to the support panel by fasteners, and the upper pallet is pressed on the column foot bottom plate of the steel structure column to fix the steel structure column to prevent displacement or falling off; After pre-assembly, during the transportation phase, the support device will be shipped together with the steel structure as a whole and placed on the transportation vehicle to improve the reliability of transportation.

[0016] When the connection between the card plate assembly and the support panel by fasteners is unreliable, the base plate is directly welded to the support panel. When the project is actually in place, the corresponding size of the upper card plate is cut off to achieve the purpose of separating the steel structure column and the support device.

[0017] Compared with the prior art, the present invention has the following advantages and effects: 1. The shear key is inserted into the installation slot and the accommodating cavity, and the basic stability is maintained by the deadweight of the steel structure column. During subsequent shipment, the column foot bottom plate is fixed to the present invention through the clamping plate assembly to prevent the support device from shifting or falling off. During the transportation stage, the present invention can be shipped as a whole together with the steel structure module and placed on the ship deck or vehicle trailer to improve the reliability of transportation. 2. During the pre-assembly and transportation stages, the present invention evenly guides the bearing capacity of the steel structure module to the base ground to reduce the load requirements on the base ground. At the same time, it fixes and protects the shear key 6 to prevent damage to the shear key. 3. The material is simple and the production cost is low. It can be mass-produced according to the size of the structural column and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention.

[0019] Figure 2 The figure is a schematic top view of the supporting panel according to an embodiment of the present invention.

[0020] Figure 3 It is a side view structural schematic diagram of the embodiment of the present invention connected with a steel structure column.

[0021] Figure 4 It is a schematic diagram of a top view of the structure of an embodiment of the present invention connected to a steel structure column.

[0022] Figure 5 It is a schematic diagram of the front view of the structure of the embodiment of the present invention connected with a steel structure column. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0024] 1. The supporting device for preassembly and transportation of steel structure columns according to an embodiment of the present invention comprises a supporting panel 1, a base plate 2, a reinforcing rib plate 3 and a clamping plate assembly 9.

[0025] As for the material of the supporting device, considering the cost and material convenience, it is recommended to use Q235 steel plate with a thickness of δ=10 or 12mm.

[0026] Determine the size of the supporting panel 1. The size selection should take into account the installation space of the necessary subsequent structures. It is recommended to be the length of the column foot plate 5 + 300mm.

[0027] The size of the foundation slab 2 is determined. Its area S2 is usually selected to be consistent with the supporting panel 1, and is checked according to the foundation ground bearing capacity N2, the axial force N1 and the area S1 of the column foot slab 5 of the steel structure column 7 to ensure that N1 / S1≤N2 / S2.

[0028] The support panel 1 is located above the foundation bottom plate 2. The support panel 1 is fixed to the foundation bottom plate 2 through the reinforcing ribs 3. The support panel 1, the foundation bottom plate 2 and the reinforcing ribs 3 are all fixed by manual arc welding. The support panel 1 is used to place the steel structure column. Determine the height of the reinforcing ribs 3. It is recommended to keep it consistent with the height of the shear key 6. There are multiple reinforcing ribs 3, which are evenly distributed between the support panel 1 and the foundation bottom plate 2 according to 1.5 times the width of the shear key 6.

[0029] A mounting slot 4 is provided on the support panel 1, and the size of the mounting slot 4 is determined according to the width of the shear key 6, and it is recommended to be the width of the shear key 6 + 20 mm. An accommodating cavity 8 for accommodating the shear key 6 is provided between the support panel 1 and the base bottom plate 2, and the accommodating cavity 8 is located below the mounting slot 4.

[0030] The card assembly 9 includes a base plate a, an upper card plate b, a fastener c and an insulating gasket d. The base plate a and the upper card plate b are made of steel plates consistent with the support panel 1. The size of the base plate a is 200×100mm, the height of the upper card plate b is 50mm, and the length is determined according to the needs. Its far end is kept about 50mm away from the edge of the steel structure column 7. The upper card plate b is welded and fixed on the base plate a. The base plate a and the support panel 1 are connected and fixed by steel fasteners c. It is recommended that the fastener c use M10 / M12 bolts. The insulating gasket d is fixed to the bottom of the upper card plate b as a buffer between the upper card plate b and the column foot bottom plate 5, which plays an isolation and protection role. It can be made of a material with a certain elasticity such as insulating rubber. The thickness is recommended to be 5~10mm and the width is about 30mm. The card assembly 9 is set on the side of the installation slot 4. The card assembly 9 can determine the number and position of the opening according to actual needs. In this embodiment, there are multiple card assemblies 9, which are relatively distributed on both sides of the installation slot 4.

[0031] 2. A method for using the support device for preassembling and transporting a steel structure column according to an embodiment of the present invention comprises the following steps: During pre-assembly of the steel structure, the supporting device is placed on the horizontal ground, the steel structure column 7 is lifted by the lifting equipment and placed on the supporting panel 1, and the shear key 6 of the steel structure column 7 is inserted into the installation slot 4 and the accommodating cavity 8 with manual assistance. The basic stability is maintained by the deadweight of the steel structure column 7, and the shear key 6 is effectively fixed during pre-assembly.

[0032] After the steel structure is pre-assembled and before shipment, the clamping plate assembly 9 is installed, the base plate a is fixed to the supporting panel 1 by the fasteners c, and the upper clamping plate b is pressed on the column foot bottom plate 5 of the steel structure column 7, so that the steel structure column 7 is fixed to prevent displacement or falling off. The shear key 6 is also effectively fixed before shipment.

[0033] After pre-assembly, during the transportation stage, the present invention is shipped together with the steel structure as a whole and placed on a transportation tool such as a ship deck or a vehicle trailer. During the transportation stage, the shear key 6 is also effectively fixed to improve the reliability of transportation.

[0034] When the connection between the card assembly 9 and the supporting panel 1 using the fastener c is unreliable, the base plate a can be directly welded to the supporting panel 1. When the project is actually in place, the corresponding size of the upper card plate b can be cut off to achieve the purpose of separating the steel structure column 7 from the supporting device.

[0035] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the present invention. Any equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention.

Claims

1. A support device for preassembly and transportation of steel structure columns, characterized in that: It includes a supporting panel, a basic bottom plate, a reinforcing rib plate and a card plate assembly; the supporting panel is located above the basic bottom plate, the supporting panel is fixed to the basic bottom plate through the reinforcing rib plate, and the supporting panel is used to place the steel structure column; a mounting slot is opened on the supporting panel, and a receiving cavity for receiving a shear key is provided between the supporting panel and the basic bottom plate, and the receiving cavity is located below the mounting slot; the card plate assembly is arranged on the side of the mounting slot, and includes a base plate, an upper card plate and fasteners; the upper card plate is fixed on the base plate, and the base plate and the supporting panel are connected and fixed by fasteners.

2. The support device for preassembly and transportation of steel structure columns according to claim 1, characterized in that: The support panel, the base bottom plate and the reinforcing ribs are all fixed by manual arc welding.

3. The support device for preassembly and transportation of steel structure columns according to claim 1 is characterized in that: The height of the reinforcing ribs is consistent with the height of the shear keys of the steel structure columns.

4. The support device for preassembly and transportation of steel structure columns according to claim 1, characterized in that: There are multiple reinforcing ribs, which are evenly distributed between the supporting panel and the basic bottom plate.

5. The support device for preassembly and transportation of steel structure columns according to claim 1, characterized in that: The fasteners are bolts.

6. The support device for preassembly and transportation of steel structure columns according to claim 1, characterized in that: There are multiple card board components, which are relatively distributed on both sides of the installation slot.

7. The support device for preassembly and transportation of steel structure columns according to claim 1 or 6, characterized in that: The card board assembly also includes an insulating gasket, which is fixed on the bottom of the upper card board.

8. The support device for preassembly and transportation of steel structure columns according to claim 1, characterized in that: The area S2 of the foundation bottom plate is consistent with the support panel 1, and is checked according to the foundation ground bearing capacity N2, the axial force N1 and the area S1 of the column foot bottom plate of the steel structure column to ensure that N1 / S1≤N2 / S2.

9. A method for using the support device for preassembly and transportation of steel structure columns according to any one of claims 1 to 8, characterized in that: The steps include: When the steel structure is pre-assembled, the support device is placed on a horizontal ground, the steel structure column is lifted by a lifting device and placed on the support panel, and the shear key of the steel structure column is inserted into the installation slot and the accommodating cavity, and the deadweight of the steel structure column is used to maintain stability; After the steel structure is pre-assembled and before shipment, the pallet assembly is installed, the base plate is fixed to the support panel by fasteners, and the upper pallet is pressed on the column foot bottom plate of the steel structure column to fix the steel structure column to prevent displacement or falling off; After pre-assembly, during the transportation stage, the support device will be shipped together with the steel structure as a whole and placed on the transportation vehicle to improve the reliability of transportation.

10. The method of use according to claim 9, characterized in that: When the fasteners used to connect the pallet assembly to the support panel are unreliable, the base plate is directly welded to the support panel. When the project is actually in place, the upper pallet is cut off to the corresponding size to achieve the purpose of separating the steel structure column and the support device.

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