Detachable column foot structure of fabricated steel structure building

Abstract

The utility model relates to the technical field of column foot structures, and discloses a detachable column foot structure of an assembly type steel structure building, which comprises a column foot bottom plate, and the column foot bottom plate is used for being connected with a concrete foundation through a foundation anchor bolt; a pair of column foot flange plates is arranged at the top of the column foot bottom plate, a plurality of first bolt holes are formed in the column foot flange plates, and the column foot flange plates are fixedly connected with the flange plates of the H-shaped steel column through first bolts; a column foot web is arranged at the top of the column foot bottom plate, a plurality of second bolt holes are formed in the column foot web, and the column foot web is fixedly connected with the web of the H-shaped steel column through second bolts; the column foot flange plate and the column foot web plate are connected with the H-shaped steel column flange plate and the H-shaped steel column web plate through the bolts, disassembly is convenient, the H-shaped steel column and the column foot can be rapidly disassembled only by screwing off the bolts, recycling of the column foot structure is facilitated, the column foot cannot be damaged in the disassembly process, and cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of column foot structures, in particular to a detachable column foot structure of an assembled steel structure building. Background Art

[0002] In multi-story prefabricated steel structure buildings, H-steel columns mostly use exposed column bases. After the steel structure is installed, the exposed column bases are generally poured with concrete, and the column bases are partially buried in the concrete, which makes it extremely inconvenient to disassemble later.

[0003] The utility model patent (authorization announcement number CN218814402U) discloses an improved exposed steel structure column foot. The solution requires the column foot bottom plate to be vertically welded to the steel column, the stiffening ribs to be vertically welded at the right angle formed by the steel column and the column foot bottom plate, and the shear key to be vertically welded at the center of the lower side of the column foot bottom plate. After the column foot part and the steel column part are welded as one, the column foot and the steel column are hoisted and installed as a whole. The verticality needs to be calibrated during installation. However, since the column foot and the steel column are welded as one, it is relatively bulky and requires the use of a crane to adjust the verticality, which is inconvenient to calibrate. In addition, when some buildings are built as temporary buildings, the structure of the above-mentioned welding connection form makes it difficult to disassemble the column foot and the steel column. Forcible disassembly of the column foot is also likely to damage the column foot, making the column foot structure unable to be recycled. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a detachable column base structure for an assembled steel structure building, in which the column base flange plate and the column base web are connected to the flange plate and the web of the H-shaped steel column by bolts, which are convenient for disassembly. The H-shaped steel column and the column base can be quickly disassembled by simply unscrewing the bolts, which facilitates the recycling of the column base structure and does not damage the column base during the disassembly process, thereby saving costs.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A detachable column base structure of an assembled steel structure building comprises a column base plate, which is used to be connected to a concrete foundation through ground anchor bolts; a pair of column base flange plates are provided on the top of the column base plate, a plurality of first bolt holes are provided on the column base flange plates, and the column base flange plates and the flange plates of H-shaped steel columns are fixedly connected by the first bolts; a column base web plate is provided on the top of the column base plate, a plurality of second bolt holes are provided on the column base web plate, and the column base web plate and the web plate of the H-shaped steel column are fixedly connected by the second bolts.

[0007] As a further implementation method, the column foot flange plates are arranged along the length direction of the column foot bottom plate.

[0008] As a further implementation method, the two column foot flange plates are used to fit the outer side surfaces of the flange plates of the H-shaped steel columns.

[0009] As a further implementation, the column base web is connected between the column base flange plates.

[0010] As a further implementation, the column base web is used to fit the side of the web of the H-shaped steel column.

[0011] As a further implementation method, at least two column base stiffening plates are welded between the outer side surface of the column base flange plate and the column base bottom plate.

[0012] As a further implementation, the width of the column foot flange plate is adapted to the width of the flange plate of the H-shaped steel column.

[0013] As a further implementation method, the first bolt hole is arranged higher than the column base stiffening plate, and the column base flange plate is matched with the prefabricated bolt hole on the H-shaped steel column flange plate through the first high-strength bolt.

[0014] As a further implementation method, steps are formed on both sides of the column base web near the top for abutting against the flange plate of the H-shaped steel column.

[0015] As a further implementation method, the column foot bottom plate is provided with a ground anchor bolt hole, which is connected to the concrete foundation through a ground anchor bolt.

[0016] The beneficial effects of the above utility model are as follows:

[0017] 1. The utility model separates the column foot part from the steel column part. During installation, it is only necessary to calibrate the verticality of the column foot part. The weight of the column foot part is small relative to the entire steel column, and there is no need to use complex lifting equipment to adjust it. By arranging the column foot flange plate and the column foot web plate, the column foot flange plate and the column foot web plate are connected to the flange plate and the web plate of the H-shaped steel column by bolts, which is convenient for installation and disassembly. Only the bolts need to be unscrewed to achieve rapid disassembly of the H-shaped steel column and the column foot, which is convenient for the recycling of the column foot structure, and the column foot will not be damaged during the disassembly process, saving costs.

[0018] 2. The utility model processes the H-steel column and the column foot separately, and separates the complicated processing work of the column foot part from the whole steel column processing process. The column foot part can be placed in the steel structure processing factory to complete the production, so that the column foot can be processed in a centralized manner, and the accuracy is easier to control. In addition, the standardized and batch production of H-steel columns can be realized, and the steel columns can also be purchased according to standardized specifications, thereby improving the standardization of prefabricated steel structure buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 This is a front view of the detachable column foot structure in the embodiment of the utility model;

[0021] Figure 2 It is a side view of the detachable column foot structure in the embodiment of the utility model.

[0022] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0023] Among them: 1. H-shaped steel column, 2. Column base flange plate, 3. Column base stiffener plate, 4. Column base bottom plate, 5. Column base web plate, 6. First high-strength bolt, 7. Second high-strength bolt, 8. Ground anchor bolt hole. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0025] Embodiment 1

[0026] In a typical implementation of the present invention, reference is made to Figure 1-Figure 2 As shown, a detachable column base structure of an assembled steel structure building includes a column base bottom plate 4, a column base flange plate 2, and a column base web 5, which are connected to an H-shaped steel column 1 by bolts. When a temporary building needs to be dismantled, the H-shaped steel column 1 and the column base can be quickly disassembled by simply removing the bolts.

[0027] The column foot flange plate 2 and the column foot web plate 5 are welded to the top of the column foot bottom plate for connection with the H-shaped steel column. The column foot bottom plate is preferably a rectangular structure with anchor bolt holes 8 at the four corners for connection with the concrete foundation through anchor bolts.

[0028] like Figure 1 and Figure 2 As shown, a pair of column foot flange plates 2 and a column foot web plate 5 are provided on the top of the column foot bottom plate 4, wherein the two column foot flange plates 2 are arranged along the length direction of the column foot bottom plate 1, and the two column foot flange plates 2 are used to fit the outer side of the flange plate of the H-shaped steel column 1. The column foot web plate 5 is welded to the middle position between the two column foot flange plates 2, and is used to fit one side of the web plate of the H-shaped steel column 1.

[0029] A plurality of first bolt holes are provided on the column base flange plate 2, and the column base flange plate 2 and the flange plate of the H-shaped steel column 1 are fixedly connected by the first high-strength bolts 6; a plurality of second bolt holes are provided on the column base web plate 5, and the column base web plate 5 and the web of the H-shaped steel column 1 are fixedly connected by the second bolts.

[0030] In order to improve the strength of the column base structure, at least two column base stiffening plates 3 are welded between the outer side of the column base flange plate 2 and the column base bottom plate 4. The column base stiffening plates 3 are vertically arranged with the column base flange plate and the column base bottom plate 4 and are located at the edge of the column base flange plate 2.

[0031] The width of the column base flange plate 2 matches the width of the flange plate of the H-shaped steel column 1 , and the height of the column base flange plate 2 matches the height of the column base web plate 5 .

[0032] The first bolt hole is arranged higher than the column foot stiffening plate 3. Figure 2 As shown, two rows and two columns of first bolt holes are arranged on each column base flange plate 2, with a total of four first bolt holes. The column base flange plate 2 and the prefabricated bolt holes on the flange plate of the H-shaped steel column 1 are fixedly connected by first high-strength bolts 6.

[0033] like Figure 1 As shown, the column base web 5 of this embodiment is welded at the middle position of the column base flange plate 2, and is used to fit with the web of the H-shaped steel column 1. The column base web 5 is divided into a first plate-like structure and a second plate-like structure from bottom to top. The width of the first plate-like structure is equal to the spacing between the two column base flange plates, and is used to be welded and connected with the column base flange plate. The second plate-like structure is an integral structure with the first plate-like structure, but the width of the second plate-like structure is smaller than that of the first plate-like structure, so that steps are formed near the top on both sides of the column base web 5, which are used to abut the flange plate of the H-shaped steel column 1.

[0034] In this embodiment, two column base flange plates 2 and one column base web plate 5 form an H shape. The step structure formed between the second section of the plate-like structure of the column base web plate 5 and the column base flange plate 2 facilitates the flange plate of the H-shaped steel column 1 to pass through and abut against the bottom of the step.

[0035] The second plate-like structure is provided with four second bolt holes, which are connected to the web of the H-shaped steel column through the second high-strength bolts 7. This bolt connection form is suitable for temporary buildings, and there is no need to outsource the pouring of concrete. When the temporary building needs to be dismantled, the H-shaped steel column and the column foot can be quickly disassembled by simply unscrewing the high-strength bolts.

[0036] Through the above connection design, the processing work of the steel column can also be divided into two parts. One part is the processing of the relatively simple H-shaped steel column 1. This part is simple to process and easy to form standardized and mass production. The other part is the processing of the column base structure, which separates the processing work of the complex column base part from the processing process of the entire steel column. The processing of this part is relatively troublesome, but it is easier to control the accuracy by concentrating the processing.

[0037] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A detachable column base structure of an assembled steel structure building, characterized in that: It includes a column foot bottom plate, which is used to be connected to the concrete foundation through ground anchor bolts; a pair of column foot flange plates are provided on the top of the column foot bottom plate, and a plurality of first bolt holes are provided on the column foot flange plates, and the column foot flange plates and the flange plates of the H-shaped steel columns are fixedly connected by the first bolts; a column foot web plate is provided on the top of the column foot bottom plate, and a plurality of second bolt holes are provided on the column foot web plate, and the column foot web plate and the web plate of the H-shaped steel column are fixedly connected by the second bolts.

2. The detachable column base structure of a prefabricated steel structure building according to claim 1, characterized in that: The column foot flange plates are arranged along the length direction of the column foot bottom plate.

3. The detachable column base structure of a prefabricated steel structure building according to claim 2, characterized in that: The two column foot flange plates are used to fit the outer side surfaces of the flange plates of the H-shaped steel columns.

4. The detachable column base structure of a prefabricated steel structure building according to claim 1, characterized in that: The column foot web is connected between the column foot flange plates.

5. The detachable column base structure of a prefabricated steel structure building according to claim 1, characterized in that: The column foot web is used to fit the side surface of the web of the H-shaped steel column.

6. The detachable column base structure of a prefabricated steel structure building according to claim 1, characterized in that: At least two column foot stiffening plates are welded between the outer side surface of the column foot flange plate and the column foot bottom plate.

7. The detachable column base structure of a prefabricated steel structure building according to claim 6, characterized in that: The width of the column foot flange plate is adapted to the width of the flange plate of the H-shaped steel column.

8. The detachable column base structure of a prefabricated steel structure building according to claim 7, characterized in that: The first bolt hole is arranged higher than the column base stiffening plate, and the column base flange plate cooperates with the prefabricated bolt hole on the H-shaped steel column flange plate through the first high-strength bolt.

9. The detachable column base structure of a prefabricated steel structure building according to claim 1, characterized in that: Steps are formed near the top on both sides of the column foot web for abutting against the flange plate of the H-shaped steel column.

10. The detachable column base structure of a prefabricated steel structure building according to claim 1, characterized in that: The column foot bottom plate is provided with a ground anchor bolt hole, which is connected to the concrete foundation through the ground anchor bolt.

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