Prefabricated steel column module, prefabricated steel structure, prefabricated shear wall, and modular building

Abstract

Provided in the embodiments of the present application are a prefabricated steel column module, a prefabricated steel structure, a prefabricated shear wall and a modular building. The prefabricated steel column module comprises a steel column body, a first steel column assembly and a second steel column assembly, wherein a first insertion slot is axially provided in a first end of the steel column body; first ribs protrude from an outer side wall of the first steel column assembly; an insertion plate is axially arranged at the other end of the first steel column assembly, and is inserted into the first insertion slot; the other end of the first steel column assembly is inserted into the steel column body, and the first steel column assembly is fixedly connected to the steel column body by means of the insertion plate; second ribs protrude from an inner side wall of the second steel column assembly; and the second steel column assembly is fixedly connected to a second end of the steel column body. By using the solution in the present application, the anti-pulling performance of a connected part between an upper-layer prefabricated steel column module and a lower-layer prefabricated steel column module is enhanced by means of the first ribs and the second ribs; and the first steel column assembly and the second steel column assembly can be separately formed, and can be operated from two ends, which can reduce the welding difficulty, and can also improve the welding quality and the welding efficiency, thereby facilitating the realization of automated production.

Description

Prefabricated steel column modules, prefabricated steel structures, prefabricated shear walls and modular buildings

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202310803512.0 and application date June 30, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of modular assembled buildings, and in particular to a prefabricated steel column module, an assembled steel structure, a prefabricated shear wall and a modular building. Background Art

[0004] Modular assembly buildings refer to buildings that are prefabricated in factories, assembled at the construction site, and connected using steel structures to form a whole. They are more stable than traditional building structures and can greatly enhance the extensibility and load-bearing performance of steel structures.

[0005] In existing modular prefabricated buildings, the upper and lower layers of square columns are connected by plug-in connections. The ends of the columns are designed with plug-in structures. After the two layers of square columns are connected by the plug-in structure, concrete is poured into the columns to achieve a stable connection. To enhance the pull-out resistance of the connection between the upper and lower layers of square columns after concrete pouring, pull-out resistant components are usually added to the plug-in structure.

[0006] The existing method is to place a core protruding from the top of the lower square column, deposit solder on the outside of the core protrusion to form a strip-shaped protrusion, and deposit solder on the inside of the bottom of the upper square column to form a strip-shaped protrusion. However, due to the complex structure of the top of the square column and the narrow space at the bottom, welding can only be performed from the end of the square column, which is inconvenient, resulting in poor welding quality and low efficiency, and is not conducive to automated production.

[0007] Summary of the Invention

[0008] To solve the above problems, an object of the embodiments of the present invention is to provide a prefabricated steel column module, an assembled steel structure, a prefabricated shear wall and a modular building, so as to improve the above problems.

[0009] In a first aspect, an embodiment of the present invention provides a prefabricated steel column module, comprising:

[0010] A steel column body, the steel column body comprising a first end and a second end opposite to each other, the first end defining a first insertion groove along an axial direction;

[0011] A first steel column assembly, wherein an outer side wall of one end of the first steel column assembly is provided with a first ridge extending in a first preset direction, and a plug-in plate is provided axially on the other end, the plug-in plate is inserted into the first plug-in slot, and the other end of the first steel column assembly is inserted into the steel column body and fixedly connected to the steel column body via the plug-in plate; and

[0012] A second steel column assembly, wherein the inner side wall of the second steel column assembly is provided with a second ridge extending along a second preset direction, and the second steel column assembly is fixedly connected to the second end of the steel column body.

[0013] Furthermore, the first steel column assembly includes a first steel column, the first ridge is convexly provided on the outer side wall of the first steel column, a second plug-in slot is axially provided at one end of the first steel column, and the plug-in plate is plugged into the second plug-in slot.

[0014] Furthermore, the first plug-in slot and the second plug-in slot are coplanar, the middle position of the plug-in board matches with the second plug-in slot, and the two side positions of the plug-in board match with the first plug-in slot.

[0015] Furthermore, the first plug-in slot is coplanar with the central axis of the steel column body, and the second plug-in slot is coplanar with the central axis of the first steel column.

[0016] Furthermore, the first steel column assembly further includes a plurality of first steel bars, which are spaced apart on the outer side wall of the first steel column and extend along the first preset direction to form the first ridge.

[0017] Furthermore, the first steel column assembly also includes a guide member, which is at least partially fixedly connected to the outer side wall of the first steel column, and the guide member is used to adapt to the inner wall of the second steel column assembly of another prefabricated steel column module that is socketed with the prefabricated steel column module.

[0018] Furthermore, the guide member includes a support ear, which is fixedly connected to the outer side wall of the first steel column at a diagonal position.

[0019] Furthermore, the side of the support ear away from the first steel column is an arc-shaped structure.

[0020] Furthermore, the guide member includes a fixedly connected guide cone and a guide column, the guide column is fixedly connected to the outer wall of the first steel column at a diagonal position, and the guide cone is connected to the end of the guide column and is located at the end of the first steel column away from the second plug-in slot.

[0021] Furthermore, there are multiple guide columns, and the multiple guide columns are fixed one-to-one to the outer side walls of the diagonal positions of the first steel column; the guide cone includes conical pieces connected one-to-one to the guide columns, and the conical pieces intersect at the middle position on the side away from the guide columns.

[0022] Furthermore, the second steel column assembly includes a second steel column and a connection assembly;

[0023] A plurality of welding grooves are provided on the side wall of the second steel column, and one side of the connecting component has a concave-convex shape to form a plurality of second ridges extending along the second preset direction. The other side of the connecting component is arranged on the inner side wall of the second steel column, and the connecting component and the second steel column are welded and fixed at the welding groove position.

[0024] Furthermore, the connecting assembly includes a steel plate and a second steel bar, the number of the second steel bars is multiple, the steel plate includes a first side surface and a second side surface facing each other, the multiple second steel bars are welded to the first side surface of the steel plate in sequence and at intervals, the multiple second steel bars extend along the second preset direction to form the second ridge, and the second side surface of the steel plate is arranged on the inner wall of the second steel column.

[0025] Furthermore, the connecting assembly includes a steel plate, the steel plate includes a first side surface and a second side surface facing each other, the first side surface is provided with a plurality of second ridges extending along a second preset direction, and the second side surface of the steel plate is arranged on the inner side wall of the second steel column.

[0026] Furthermore, a plurality of grooves are sequentially and spaced apart on the first side surface of the steel plate, and the plurality of grooves extend along the second preset direction, and the second ridge is formed between any two adjacent grooves.

[0027] Furthermore, the second steel column assembly includes a second steel column and a third steel column, the side wall of the second steel column is provided with a plurality of welding grooves, and the third steel column is a hollow columnar structure and includes a plurality of beams extending along the second preset direction;

[0028] The third steel column is embedded in the second steel column, and the welding groove corresponds to at least a portion of the crossbeam. The second steel column and the third steel column are welded and fixed at the welding groove.

[0029] Furthermore, the third steel column also includes a vertical beam, which extends axially. The horizontal beam is connected between two adjacent vertical beams, and the vertical beams and the horizontal beams enclose the hollow columnar structure, wherein the axial direction and the second preset direction have an angle.

[0030] Furthermore, the third steel column is a rectangular steel plate, which is provided with a plurality of through slots extending along the second preset direction, so that the crossbeam is formed between two adjacent through slots. The rectangular steel plate is bent multiple times in sequence along the second preset direction, and the ends are welded after bending to form a hollow columnar structure.

[0031] In the second aspect, an embodiment of the present invention also provides an assembled steel structure, comprising at least two prefabricated steel column modules, wherein the at least two prefabricated steel column modules include a lower steel column module and an upper steel column module, the second steel column assembly of the upper steel column module is sleeved on the first steel column assembly of the lower steel column module, and the second steel column assembly of the upper steel column module is abutted against the top of the steel column body of the lower steel column module.

[0032] In a third aspect, an embodiment of the present invention further provides a prefabricated shear wall, comprising:

[0033] a shear wall body, the shear wall body having a receiving cavity; and

[0034] Two prefabricated steel column modules are fixedly connected to both sides of the shear wall body along the length direction, and the shear wall body and the two prefabricated steel column modules enclose a wall cavity for cast-in-place concrete.

[0035] Furthermore, the shear wall body includes an inner membrane shell and an outer membrane shell that are arranged relatively parallel to each other, and the inner membrane shell, the outer membrane shell and the two prefabricated steel column modules enclose the wall cavity.

[0036] Furthermore, it also includes a shear wall steel frame, which is fixedly connected to the wall cavity, and the two ends of the shear wall steel frame are respectively fixedly connected to the two prefabricated steel column modules.

[0037] Furthermore, the two prefabricated steel column modules are fixedly connected to both sides of the shear wall body along the length direction and are located in the accommodating cavity.

[0038] In a fourth aspect, an embodiment of the present invention further provides a modular building, comprising the aforementioned prefabricated steel column module, assembled steel structure or prefabricated shear wall.

[0039] This application has the following beneficial effects:

[0040] In the solution provided in the first aspect of the embodiment of the present invention, the prefabricated steel column module is designed to be a structure assembled and welded by a steel column body, a first steel column assembly and a second steel column assembly, a first plug-in slot is provided in the axial direction at the first end of the steel column body, a first ridge is provided on the outer wall of one end of the first steel column assembly, and a plug-in plate is provided at the other end. When the first end of the steel column body is assembled with the first steel column assembly, the first steel column assembly is fixedly connected to the steel column body through the plug-in plate. A second ridge is provided on the inner wall of the second steel column assembly, and the second steel column assembly is fixedly connected to the second end of the steel column body. The prefabricated steel column module is designed to be a structure in which three structural parts (steel column body, first steel column assembly and second steel column assembly) are fixedly connected by designing a complete steel column. The first ridge of the first steel column assembly and the second ridge of the second steel column assembly enhance the pull-out resistance between the connection positions of the upper and lower layers of the prefabricated steel column modules.

[0041] Moreover, the first steel column assembly and the second steel column assembly can be formed separately, and both can be operated from both ends. Especially for the second steel column assembly with a narrow internal space, welding operations from both ends can not only reduce the difficulty of welding, but also improve welding quality and welding efficiency. By first forming the first steel column assembly and the second steel column assembly separately, the formed first steel column assembly is fixedly connected to the first end of the steel column body, and the formed second steel column assembly is fixedly connected to the second end of the steel column body, and finally an integral module is formed. The prefabricated steel column module provided in this application is cleverly and reasonably designed, simple in structure, convenient for assembly and welding operations, can improve welding speed and welding quality, and is also conducive to realizing automated production.

[0042] In the solution provided in the second aspect of the embodiment of the present invention, the assembled steel structure has the beneficial effects of the above-mentioned prefabricated steel column module.

[0043] In the solution provided in the third aspect of the embodiment of the present invention, the prefabricated shear wall has the beneficial effects of the prefabricated steel column module.

[0044] In the solution provided in the fourth aspect of the embodiment of the present invention, the modular building has the beneficial effects of the above-mentioned prefabricated steel column module, assembled steel structure or prefabricated shear wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0046] FIG1 shows a schematic structural diagram of a prefabricated steel column module provided by an embodiment of the present invention;

[0047] FIG2 shows an exploded schematic diagram of a prefabricated steel column module provided in an embodiment of the present invention;

[0048] FIG3 shows a schematic structural diagram of a steel column body in a prefabricated steel column module provided in an embodiment of the present invention;

[0049] FIG4 shows a schematic structural diagram of a first structure of a first steel column assembly in a prefabricated steel column module provided by an embodiment of the present invention;

[0050] FIG5 is a schematic structural diagram of a second structure of the first steel column assembly in the prefabricated steel column module provided in an embodiment of the present invention;

[0051] FIG6 shows a schematic structural diagram of a third structure of the first steel column assembly in the prefabricated steel column module provided in an embodiment of the present invention;

[0052] FIG7 shows a schematic structural diagram of a first structure of a second steel column assembly in a prefabricated steel column module provided by an embodiment of the present invention;

[0053] FIG8 shows a schematic structural diagram of a first structure of a connecting assembly in a second steel column assembly provided by an embodiment of the present invention;

[0054] FIG9 shows a schematic structural diagram of a second structure of a connecting assembly in a second steel column assembly provided by an embodiment of the present invention;

[0055] FIG10 shows a schematic structural diagram of a second structure of a second steel column assembly in a prefabricated steel column module provided in an embodiment of the present invention;

[0056] FIG11 is an exploded schematic diagram showing a second structure of a second steel column assembly provided by an embodiment of the present invention;

[0057] FIG12 is a schematic structural diagram showing a first structure of the third steel column in the second steel column assembly provided by an embodiment of the present invention;

[0058] FIG13 is a schematic structural diagram showing a second structure of the third steel column in the second steel column assembly provided by an embodiment of the present invention;

[0059] FIG14 shows a schematic structural diagram of an assembled steel structure provided by an embodiment of the present invention;

[0060] FIG15 shows a cross-sectional view of the connection portion between the upper steel column module and the lower steel column module in an assembled steel structure provided by an embodiment of the present invention;

[0061] FIG16 shows a schematic structural diagram of a first type of prefabricated shear wall structure provided by an embodiment of the present invention;

[0062] FIG17 shows a schematic structural diagram of a second type of prefabricated shear wall structure provided by an embodiment of the present invention.

[0063] Icons: 100-prefabricated steel column module; 101-first preset direction; 103-second preset direction; 110-steel column body; 113-first plug-in slot; 130-first steel column assembly; 133-first steel column; 1331-second plug-in slot; 135-first ridge; 1351-first steel bar; 137-plug-in plate; 1381-support ear; 1383-guide cone; 1385-guide column; 160-second steel column assembly; 161-second steel column; 1611- Welding groove; 163-second ridge; 1631-steel plate; 1633-second steel bar; 1635-groove; 165-third steel column; 1651-crossbeam; 1653-vertical beam; 1655-through groove; 200-assembled steel structure; 210-lower steel column module; 230-upper steel column module; 300-prefabricated shear wall; 310-shear wall body; 315-wall cavity; 3102-inner membrane shell; 3104-outer membrane shell; 330-shear wall steel frame. DETAILED DESCRIPTION

[0064] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0065] In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "inside", "outside", "up", "down", "front", "back", "left", "right", "center", "longitudinal", "transverse", "length", "width", "thickness", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0066] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0067] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0068] A prefabricated steel column module 100 is provided in an embodiment of the present application. Please refer to FIG1 , which is a structural schematic diagram of the prefabricated steel column module 100 . Please refer to FIG2 , which is an exploded schematic diagram of the prefabricated steel column module 100 .

[0069] Specifically, the prefabricated steel column module 100 may include a steel column body 110, a first steel column assembly 130, and a second steel column assembly 160. The steel column body 110 includes a first end and a second end opposite to each other, and the first steel column assembly 130 and the second steel column assembly 160 are fixedly connected to both ends of the steel column body 110, respectively.

[0070] The first end of the steel column body 110 is provided with a first insertion slot 113 (as shown in FIG. 2 ) along the axial direction. A first ridge 135 extending along a first preset direction 101 is provided on the outer sidewall of one end of the first steel column assembly 130, and a plug plate 137 is provided along the axial direction at the other end. During connection, the plug plate 137 of the first steel column assembly 130 is inserted into the first insertion slot 113 at the first end of the steel column body 110. The first steel column assembly 130 is inserted into the steel column body 110 and fixedly connected to the steel column body 110 via the plug plate 137. A second ridge 163 extending along a second preset direction 103 is provided on the inner sidewall of the second steel column assembly 160 (as shown in FIG. 2 ). The second steel column assembly 160 is fixedly connected to the second end of the steel column body 110.

[0071] It is understandable that the first preset direction 101 and the second preset direction 103 may be the same or different, and the first preset direction 101 forms an angle with the axial direction of the steel column body 110, and the second preset direction 103 also forms an angle with the axial direction of the steel column body 110. In order to improve the pull-out resistance of the connection position after the upper and lower prefabricated steel column modules are sleeved together, the second ridge on the inner side wall of the second steel column assembly in the upper prefabricated steel column module can be extended in a horizontal direction, that is, in a direction that forms an angle with the axial direction of the steel column body; the first ridge on the outer side wall of the first steel column assembly in the lower prefabricated steel column module can also extend in a horizontal direction, that is, in a direction that forms an angle with the axial direction of the steel column body.

[0072] The prefabricated steel column module 100 is a structure in which a complete steel column is designed to be fixedly connected with three structural parts: a steel column body 110, a first steel column assembly 130, and a second steel column assembly 160. Specifically, a first rib 135 is first protruded on the outer wall of the first steel column assembly 130. After the first steel column assembly 130 is formed, the first steel column assembly 130 is fixedly connected to the first end of the steel column body 110 through the plug-in plate 137. A second rib 163 is protruded on the inner wall of the second steel column assembly 160. After the second steel column assembly 160 is formed, the second steel column assembly 160 is fixedly connected to the second end of the steel column body 110. The prefabricated steel column module 100 enhances the pull-out resistance between the connection positions of the upper and lower layers of the prefabricated steel column modules 100 through the first rib 135 of the first steel column assembly 130 and the second rib 163 of the second steel column assembly 160. The first steel column assembly 130 and the second steel column assembly 160 can be formed separately and both can be operated from both ends. Especially for the second steel column assembly 160 with a narrow internal space, welding from both ends can not only reduce the difficulty of welding, but also improve welding quality and efficiency. By first forming the first steel column assembly 130 and the second steel column assembly 160 separately, then fixing the formed first steel column assembly 130 to the first end of the steel column body 110, and then fixing the formed second steel column assembly 160 to the second end of the steel column body 110, a complete module is formed, which facilitates automated production.

[0073] Optionally, the cross-sectional shape of the steel column body 110 may be rectangular, and accordingly, the cross-sectional shapes of the first steel column assembly 130 and the second steel column assembly 160 may also be rectangular. In other optional embodiments, the cross-sectional shapes of the steel column body 110, the first steel column assembly 130, and the second steel column assembly 160 may also be other structures, as long as the cross-sectional shape of the second steel column assembly 160 is the same as that of the steel column body 110 and the first steel column assembly 130 can be embedded in the steel column body 110. This is not limited to this in the present application, and the following description assumes that the cross-sectional shape is rectangular.

[0074] The following describes in detail the specific structure of the prefabricated steel column module 100. Referring to FIG3, a schematic diagram of the structure of the steel column body 110 in the prefabricated steel column module 100 is shown.

[0075] The steel column body 110 is a long hollow tubular structure, including a first end and a second end opposite to each other. The first end is used to cooperate and fix with the first steel column assembly 130, and the second end is used to cooperate and fix with the second steel column assembly 160.

[0076] Since the cross-sectional dimension of the first steel column assembly 130 is smaller than that of the steel column body 110, the first steel column assembly 130 is inserted into the first end of the steel column body 110. In order to fixedly connect the first steel column assembly 130 and the steel column body 110, a first insertion groove 113 can be provided at the first end of the steel column body 110, and a plug-in plate 137 is provided at the end of the first steel column assembly 130. The plug-in plate 137 and the first insertion groove 113 are both arranged along the axial direction of the steel column body 110. The first steel column assembly 130 is inserted into the first insertion groove 113 of the steel column body 110 via the plug-in plate 137.

[0077] Optionally, the size of the first plug-in slot 113 opened at the first end of the steel column body 110 is adapted to the size of the plug-in plate 137, that is: the thickness dimension of the plug-in plate 137 is slightly smaller than the slot width dimension of the first plug-in slot 113, the length dimension of the plug-in plate 137 is slightly larger than the length dimension of the first plug-in slot 113, and the width dimension of the plug-in plate 137 is equal to or larger than the depth dimension of the first plug-in slot 113, so as to facilitate the smooth insertion of the plug-in plate 137 into the first plug-in slot 113.

[0078] It is understandable that in other optional embodiments, the width dimension of the plug-in plate 137 can also be smaller than the depth dimension of the first plug-in slot 113. This application does not limit this dimension, as long as the first steel column assembly 130 is plugged and fixed to the steel column body 110 through the plug-in plate 137.

[0079] Please refer to FIG. 4 , which is a schematic structural diagram of a first structure of the first steel column assembly 130 in the prefabricated steel column module 100 .

[0080] Specifically, the first steel column assembly 130 may include a first steel column 133 , a first ridge 135 protruding from the outer wall of the first steel column 133 , a second plug-in slot 1331 axially opened at one end of the first steel column 133 , and a plug-in plate 137 plugged and fixed in the second plug-in slot 1331 .

[0081] Optionally, the first steel column 133 may be a hollow tubular structure, with a second insertion slot 1331 axially defined in the sidewall of the first steel column 133. The insertion plate 137 may be a rectangular steel plate, the length of which should be greater than the length of the second insertion slot 1331 of the first steel column 133, the thickness of which is slightly less than the width of the second insertion slot 1331 of the first steel column 133, and the width of the rectangular steel plate 1631 may be equal to, greater than, or less than the depth of the second insertion slot 1331 of the first steel column 133.

[0082] Furthermore, after the first steel column 133 is plugged and fixed to the steel column body 110 via the plug-in plate 137, the first plug-in slot 113 of the steel column body 110 and the second plug-in slot 1331 of the first steel column 133 become coplanar. Since the first steel column assembly 130 is plugged into the steel column body 110, the middle portion of the plug-in plate 137 mates with the second plug-in slot 1331 of the first steel column 133, and the sides of the plug-in plate 137 mate with the first plug-in slot 113 of the steel column body 110 (as shown in FIG. 1 ).

[0083] Optionally, the first insertion slot 113 of the steel column body 110 is coplanar with the central axis of the steel column body 110, and the second insertion slot 1331 of the first steel column 133 is coplanar with the central axis of the first steel column 133. That is, the opening direction of the first insertion slot 113 can be perpendicular to the side wall of the steel column body 110 and pass through the central axis of the steel column body 110, or can be located at a diagonal position of the steel column body 110, or have an angle with the side wall of the steel column body 110 and pass through the central axis of the steel column body 110.

[0084] Furthermore, the first steel column assembly 130 may further include a plurality of first steel bars 1351 . The plurality of first steel bars 1351 are spaced apart on the outer side wall of the first steel column 133 and extend along the first preset direction 101 to form a first ridge.

[0085] The first predetermined direction 101 refers to a direction at an angle to the axis of the first steel column 133. For example, the first steel bars 1351 extend in a direction perpendicular to the central axis of the first steel column 133. The first steel bars 1351 may be evenly or unevenly spaced. The first steel bars 1351 may be provided on each outer wall of the first steel column 133, or on only a portion of the outer walls. The first steel bars 1351 may be secured to the outer walls of the first steel column 133 by welding.

[0086] When multiple prefabricated steel column modules are assembled in a sleeve-type arrangement, in order to facilitate the smooth sleeve-type arrangement of the upper prefabricated steel column module with the lower prefabricated steel column module, a guide piece can be optionally provided on the top of the lower prefabricated steel column module to guide the upper prefabricated steel column module and facilitate smooth sleeve-type arrangement.

[0087] Specifically, the first steel column assembly 130 may further include a guide member, which is at least partially fixedly connected to the outer wall of the first steel column 133, and is used to adapt to the inner wall of the second steel column assembly of another prefabricated steel column module.

[0088] Please refer to FIG. 5 , which is a schematic structural diagram of a second structure of the first steel column assembly 130 in the prefabricated steel column module 100 .

[0089] The guide member may include a lug 1381, which is fixedly connected to the outer sidewall of the first steel column 133 at a diagonal position. There may be at least two lugs 1381, two of which may be fixedly connected to the outer sidewall of the first steel column 133 at a diagonal position, with the outermost lug 1381 being configured to mate with the inner sidewall of the prefabricated steel column module on the upper layer.

[0090] In order to further achieve the guiding effect, optionally, the side of the lug 1381 away from the first steel column 133 can be designed as an arc structure.

[0091] By protruding a support ear 1381 with an arc-shaped outer edge on the outer side wall of the first steel column 133 at a diagonal position, the upper prefabricated steel column module and the lower prefabricated steel column module can be smoothly connected.

[0092] Please refer to FIG. 6 , which is a schematic structural diagram of a third structure of the first steel column assembly 130 in the prefabricated steel column module 100 .

[0093] Specifically, the guide member may include a fixedly connected guide cone 1383 and a guide column 1385, wherein the guide column 1385 is a slender rod-shaped structure, and the guide column 1385 is fixedly connected to the outer wall of the diagonal position of the first steel column 133, and the guide cone 1383 is connected to the end of the guide column 1385 and is located at the end of the first steel column 133 away from the second plug-in slot 1331.

[0094] Optionally, there may be multiple guide posts 1385, each of which is fixed to the outer sidewalls of the first steel post 133 at diagonal positions (when the first steel post 133 is a quadrangular prism, there are four guide posts 1385, and the four guide posts 1385 are fixed to the outer sidewalls of the four corners of the quadrangular prism in a one-to-one manner). The guide cone 1383 may include a conical piece connected to the guide posts 1385 in a one-to-one manner, and the side of the conical piece away from the guide posts 1385 intersects at the middle position, so that the guide cone 1383 can have a structure that is lower on the outside and higher in the middle.

[0095] It is understandable that the guide member may also include other structures, which are not specifically limited in this application and are determined based on actual needs.

[0096] Please refer to FIG. 7 , which is a structural diagram of a first structure of the second steel column assembly 160 in the prefabricated steel column module 100 .

[0097] Second steel column assembly 160 includes a second steel column 161 and a connecting assembly, which is positioned on the inner sidewall of second steel column 161. The sidewall of second steel column 161 defines a plurality of welding grooves 1611. One side of the connecting assembly has a concave-convex shape to form a plurality of second ridges 163 extending along the second predetermined direction 103. During installation, the other side of the connecting assembly is positioned on the inner sidewall of second steel column 161. The connecting assembly is then welded to the second steel column 161 from the outside of the second steel column 161 at the welding grooves 1611.

[0098] Please refer to FIG8 , which is a schematic structural diagram of a first structure of a connection component.

[0099] Specifically, the connection assembly may include a steel plate 1631 and a second steel bar 1633 , and the second steel bar 1633 is welded to the inner wall of the second steel column 161 through the steel plate 1631 .

[0100] Optionally, there are multiple second steel bars 1633, and the steel plate 1631 includes a first side surface and a second side surface facing away from each other. The multiple second steel bars 1633 are sequentially welded to the first side surface of the steel plate 1631 at intervals. The multiple second steel bars 1633 extend along the second predetermined direction 103 to form a second ridge. The multiple second steel bars 1633 are welded to the steel plate 1631 to form a whole. The second side surface of the steel plate 1631 is then attached to the inner side wall of the second steel column 161. Finally, welding is performed from the outer side wall of the second steel column 161.

[0101] Alternatively, the steel plate 1631 may be a thin-walled steel plate, the shape of which matches the inner wall shape of the second steel column 161, for example, a rectangular structure. The plurality of second steel bars 1633 are sequentially spaced apart so that the first side surface of the steel plate 1631 forms a concave-convex shape.

[0102] Optionally, multiple second steel bars 1633 are evenly welded to the first side of the steel plate 1631 , and each second steel bar 1633 extends along the second preset direction 103 , and the multiple second steel bars 1633 are distributed in sequence along a direction perpendicular to the second preset direction 103 .

[0103] Please refer to FIG9 , which is a schematic diagram of the second structure of the connection component.

[0104] Specifically, the connection assembly may include a steel plate 1631 having a first side surface and a second side surface facing each other. The first side surface is provided with a plurality of second ridges 163 extending along the second predetermined direction 103. During installation, the second side surface of the steel plate 1631 is positioned on the inner sidewall of the second steel column 161, and the steel plate 1631 is welded to the second steel column 161 from the outside of the second steel column 161 at the welding groove 1611.

[0105] Optionally, the second rib 163 and the steel plate 1631 may be integrally formed, for example, by die casting, or extrusion molding, etc., which is not limited in the embodiments of the present application.

[0106] In other optional embodiments, multiple grooves may be sequentially and spaced apart on the first side surface of the steel plate 1631. The multiple grooves extend along the second predetermined direction 103, with the second ridge 163 formed between any two adjacent grooves 1635. For example, this may be formed by milling. Specifically, multiple grooves 1635 may be milled into a single steel plate 1631, such that any two adjacent grooves 1635 are separated by the second ridge 163.

[0107] In this embodiment of the present application, to improve the pullout resistance between the ends of the upper and lower steel structures, a connection assembly can be provided on each inner sidewall of the second steel column 161. That is, the second steel column 161 includes multiple inner sidewalls, each of which is provided with a connection assembly, thereby enhancing the pullout resistance from all sides.

[0108] In this embodiment, the second steel bar 1633 is welded to the steel plate 1631, a welding groove 1611 is formed in the side wall of the second steel column 161, and the steel plate 1631 and the second steel column 161 are welded through the welding groove 1611. This achieves indirect welding of the second steel bar 1633 to the inner side wall of the second steel column 161 through the steel plate 1631. This facilitates operation and welding, increases both welding speed and efficiency, and facilitates further automated production.

[0109] Please refer to Figure 10, which is a schematic diagram showing a second structure of the second steel column assembly 160 in the prefabricated steel column module 100. Please refer to Figure 11, which is an exploded schematic diagram showing the second structure of the second steel column assembly 160.

[0110] Specifically, the second steel column assembly 160 may include a second steel column 161 and a third steel column 165. Both the second steel column 161 and the third steel column 165 are hollow cylindrical structures. The sidewall of the second steel column 161 is provided with a welding groove 1611, which extends along the second preset direction 103. The third steel column 165 includes a plurality of crossbeams 1651, which extend along the second preset direction 103. During installation, the third steel column 165 is embedded within the second steel column 161, with the axis of the second steel column 161 aligned with the axis of the third steel column 165. The welding groove 1611 of the second steel column 161 is aligned with at least a portion of the crossbeams 1651 of the third steel column 165. The crossbeams 1651 are then welded to the second steel column 161 at the locations of the welding grooves 1611 from the outside of the second steel column 161, thereby securing the second steel column 161 to the third steel column 165.

[0111] By adopting two hollow cylindrical structures of the second steel column 161 and the third steel column 165, the third steel column 165 includes a plurality of cross beams 1651, and the side wall of the second steel column 161 is provided with a plurality of welding grooves 1611. The third steel column 165 is embedded in the second steel column 161, and after the cross beams 1651 of the third steel column 165 correspond to the welding grooves 1611 of the second steel column 161, the cross beams 1651 and the second steel column 161 are welded and fixed at the welding grooves 1611 from the outside of the second steel column 161. After welding, the cross beams 1651 of the third steel column 165 protrude from the inner side wall of the second steel column 161, forming a concave-convex structure. The second steel column assembly 160 provided in the embodiment of the present application is convenient to assemble and weld, has a simple structure, and is cleverly designed. It greatly improves the convenience of welding, and improves the welding speed and production efficiency while meeting the pull-out resistance, which is conducive to the realization of automated production.

[0112] Please refer to FIG. 12 , which is a schematic structural diagram of a first structure of the third steel column 165 .

[0113] Specifically, the third steel column 165 further includes a vertical beam 1653 , which is cross-connected with the horizontal beam 1651 to form a hollow columnar structure.

[0114] The vertical beams 1653 extend axially. There are multiple vertical beams 1653, each parallel but not coplanar. The horizontal beams 1651 connect two adjacent vertical beams 1653. The two adjacent vertical beams 1653 and the horizontal beam 1651 located therebetween form a plane, and the multiple planes form a hollow cylindrical structure. The vertical beams 1653 extend axially, while the horizontal beams 1651 extend along the second predetermined direction 103. The axial direction forms an angle with the second predetermined direction 103.

[0115] Furthermore, a plurality of transverse beams 1651 are provided between any two adjacent vertical beams 1653 , and the plurality of transverse beams 1651 between any two adjacent vertical beams 1653 are sequentially spaced apart along the axial direction.

[0116] Optionally, the second preset direction 103 may be perpendicular to the axial direction, that is, in the structure shown in FIG. 12 , in use, all horizontal beams 1651 extend in the horizontal direction, and all vertical beams 1653 extend in the vertical direction.

[0117] Each sidewall of the second steel column 161 is provided with a plurality of welding grooves 1611. The welding grooves 1611 on the same sidewall are spaced apart axially and correspond to the crossbeams 1651 of the third steel column 165. This facilitates welding of the corresponding crossbeam 1651 at each welding groove 1611 from the outside of the second steel column 161.

[0118] In order to further improve the connection stability between the third steel column 165 and the second steel column 161 , in addition to welding and fixing at the position of the welding groove 1611 , the end of the third steel column 165 and the end of the second steel column 161 may also be welded and fixed.

[0119] Please refer to FIG. 13 , which is a schematic structural diagram of a second structure of the third steel column 165 .

[0120] Specifically, the third steel column 165 is a rectangular steel plate having a plurality of through slots 1655 extending along the second predetermined direction 103, so that a crossbeam 1651 is formed between two adjacent through slots 1655. The rectangular steel plate is bent multiple times along the second predetermined direction 103 and then welded end to end to form a hollow columnar structure.

[0121] A hollow rectangular columnar structure can be formed by bending a rectangular steel plate having multiple through slots 1655, for example, three times, so that a right angle is formed between two adjacent surfaces after bending, and welding the first surface and the fourth surface end to end.

[0122] Then, the third steel column 165 is embedded in the second steel column 161, and the welding groove 1611 opened on the second steel column 161 is staggered with the through groove 1655 on the third steel column 165, that is, the welding groove 1611 corresponds to the crossbeam 1651, and the crossbeam 1651 and the second steel column 161 are welded from the outside of the second steel column 161 at the position of the welding groove 1611.

[0123] The prefabricated steel column module 100 provided in the embodiment of the present application is designed as a structure in which an integral steel column is assembled and fixed by designing a steel column body 110, a first steel column assembly 130, and a second steel column assembly 160. The first steel column assembly 130 and the second steel column assembly 160 can be welded from both ends and independently formed. The formed first steel column assembly 130 is plugged and fixed to the first end of the steel column body 110 through the plug-in plate 137, and then welded and fixed at the plug-in position. The formed second steel column assembly 160 is welded and fixed to the second end of the steel column body 110. Welding is convenient and easy to assemble.

[0124] By "providing a second ridge 163 on the inner side wall of the second steel column assembly 160", it can be converted into: the first way is: the structure of the second steel column 161 and the connecting assembly, the connecting assembly may include a steel plate 1631 and a second steel bar 1633, the second steel bar 1633 is welded to the first side surface of the steel plate 1631, and the steel plate 1631 is welded to the inner side wall of the second steel column 161, that is, the second steel bar 1633 is fixed to the inner side wall of the second steel column 161 through the steel plate 1631. The second way is: two steel columns (i.e., the second steel column 161 and the third steel column 165) are sleeved together, one large and one small, the steel column located on the inner side (the third steel column 165) is provided with a plurality of cross beams 1651 extending along the second preset direction 103, and the steel column located on the outer side (the second steel column 161) is provided with a welding groove 1611 extending along the second preset direction 103. After the two steel columns are socketed, the welding groove 1611 of the outer steel column corresponds to the crossbeam 1651 of the inner steel column. The crossbeam 1651 of the inner steel column and the outer steel column are welded through the welding groove 1611 to fix the second steel column 161 and the third steel column 165 with the crossbeam 1651, and the crossbeam 1651 with anti-pullout performance is indirectly welded to the inner wall of the second steel column 161.

[0125] The prefabricated steel column module 100 has a simple structure, ingenious design, and is easy to operate. It is easy to perform socketing and welding processes, can improve welding speed and production efficiency, and is conducive to further realizing automated production.

[0126] An assembled steel structure 200 is also provided in an embodiment of the present application. Please refer to Figures 14 and 15. Figure 14 is a structural schematic diagram of the assembled steel structure 200, and Figure 15 is a cross-sectional view of the connection portion between the upper steel column module and the lower steel column module.

[0127] The prefabricated steel structure 200 may include at least two of the above-mentioned prefabricated steel column modules 100 , wherein the at least two prefabricated steel column modules 100 may include a lower steel column module 210 and an upper steel column module 230 .

[0128] After installation, the second steel column assembly 160 of the upper steel column module 230 is sleeved on the first steel column assembly 130 of the lower steel column module 210 , and the second steel column assembly 160 of the upper steel column module 230 abuts against the top of the steel column body 110 of the lower steel column module 210 .

[0129] For example, the prefabricated steel structure 200 includes two prefabricated steel column modules 100, namely a lower steel column module 210 and an upper steel column module 230. The second steel column assembly 160 of the lower steel column module 210 is located at the bottom, and the first steel column assembly 130 is located at the top. During installation, the second steel column assembly 160 of the upper steel column module 230 is sleeved onto the first steel column assembly 130 of the lower steel column module 210, and the second steel column assembly 160 of the upper steel column module 230 cooperates and abuts against the steel column body 110 of the lower steel column module 210.

[0130] After installation, the first ridge 135 protruding from the outer wall of the first steel column assembly 130 corresponds to the second ridge 163 on the inner wall of the second steel column assembly 160 , which is beneficial to improving the tensile strength after cement pouring.

[0131] The assembled steel structure 200 has the beneficial effects of the above-mentioned prefabricated steel column module 100, which will not be described in detail here.

[0132] A prefabricated shear wall 300 is also provided in an embodiment of the present application. Please refer to FIG16 , which is a structural diagram of a first structure of the prefabricated shear wall 300 .

[0133] Specifically, the prefabricated shear wall 300 may include a shear wall body 310 and the above-mentioned prefabricated steel column module 100, the shear wall body 310 having a accommodating cavity; the number of prefabricated steel column modules 100 is two, the two prefabricated steel column modules 100 are fixedly connected to both sides of the shear wall body 310 along the length direction, and the shear wall body 310 and the two prefabricated steel column modules 100 enclose a wall cavity 315 for cast-in-place concrete.

[0134] The shear wall body 310 includes a receiving cavity. The shear wall body 310 and the two prefabricated steel column modules 100 at its ends enclose a wall cavity 315. This wall cavity 315 is used to accommodate concrete poured into the prefabricated shear wall 300 at the construction site, allowing the shear wall body 310 and the prefabricated steel column modules 100 to form a shear wall. Once the concrete is poured into the wall cavity 315 and solidifies, the shear wall is formed.

[0135] As shown in Figure 16, two prefabricated steel column modules 100 are fixedly connected to the shear wall body 310 along its length and are located in the receiving cavity of the shear wall body 310. The "two sides" along the length of the shear wall body 310 mentioned above refer to the left and right sides of the shear wall body 310 when installed / in use. The geometric shape of the prefabricated shear wall 300 is defined by the shear wall body 310.

[0136] Furthermore, the shear wall body 310 may include an inner membrane shell 3102 and an outer membrane shell 3104 that are arranged relative to and in parallel. The inner membrane shell 3102, the outer membrane shell 3104 and the two prefabricated steel column modules 100 enclose a wall cavity 315. That is, the wall cavity 315 is formed by the inner membrane shell 3102, the outer membrane shell 3104 and the two prefabricated steel column modules 100 from four directions of front, back, left and right.

[0137] Continuing with FIG. 16 , in the embodiment of the present application, two prefabricated steel column modules 100 are fixedly connected to both sides of the shear wall body 310 along the length direction and are located in the accommodating cavity. The surface of the prefabricated steel column module 100 near the inner membrane shell 3102 is fixedly connected to the inner membrane shell 3102, and the surface of the prefabricated steel column module 100 near the outer membrane shell 3104 is fixedly connected to the outer membrane shell 3104. For example, the fixed connection method may include welding, bolting, or self-tapping screw connection. The embodiment of the present invention does not specifically limit the above-mentioned fixed connection method, and the specific method is determined according to actual needs.

[0138] Furthermore, the prefabricated shear wall 300 may further include a shear wall steel frame 330 .

[0139] Specifically, the shear wall steel frame 330 is fixedly connected in the wall cavity 315 , and the two ends of the shear wall steel frame 330 along the transverse direction are respectively fixedly connected to the two prefabricated steel column modules 100 .

[0140] Optionally, one side of the shear wall steel frame 330 along the thickness direction is fixedly connected to the inner membrane shell 3102 via a first connector, and the other side of the shear wall steel frame 330 along the thickness direction is fixedly connected to the outer membrane shell 3104 via a second connector. The shear wall steel frame 330 can be connected to the inner membrane shell 3102 and the outer membrane shell 3104 via the first connector and the second connector, respectively, so that the shear wall body 310 forms a "sandwich" structure. That is, one side of the shear wall steel frame 330 is connected to the inner membrane shell 3102 via the first connector, and the other side is connected to the outer membrane shell 3104 via the second connector, forming a monolithic structure with a non-removable formwork.

[0141] Optionally, the first connecting member and the second connecting member may include self-tapping screws, angle steels, channel steels or flat steel plates.

[0142] The length direction of the shear wall steel frame 330 is the lateral extension direction of the shear wall body 310. The prefabricated steel column modules 100 are vertically fixedly connected at both ends of the shear wall steel frame 330 extending in the length direction. The two ends of the shear wall steel frame 330 in the length direction can be fixedly connected to the surface of the prefabricated steel column modules 100 by welding.

[0143] Please refer to FIG17 , which is a schematic structural diagram of a second structure of the prefabricated shear wall 300 .

[0144] The prefabricated shear wall of this structure has the same basic structure as the prefabricated shear wall of the above-mentioned structure, with the difference that: the two prefabricated steel column modules 100 are fixedly connected to both sides of the shear wall body 310 along the length direction, but the prefabricated steel column module 100 is not located in the accommodating cavity of the shear wall body 310, that is, the prefabricated steel column module 100 is fixedly connected to the end of the shear wall body 310 along the length direction.

[0145] As shown in Figure 17, the shear wall body 310 includes an inner membrane shell 3102 and an outer membrane shell 3104. Two prefabricated steel column modules 100 are fixedly connected to the two ends of the shear wall body 310. Through the inner membrane shell 3102, the outer membrane shell 3104, and the two prefabricated steel column modules 100 on the left and right sides, a wall cavity 315 is enclosed from the front, back, left and right directions. The shear wall steel frame 330 is fixedly connected in the wall cavity 315, and the shear wall steel frame 330 is fixedly connected to the two prefabricated steel column modules 100 at both ends along the horizontal direction.

[0146] In summary, for the two prefabricated shear walls 300 of the above two structures, when the shear wall formed after the concrete is poured into the prefabricated shear wall 300 is the exterior wall of the building, the inner membrane shell 3102 of the shear wall body 310 is located on the side of the shear wall facing indoors, and the outer membrane shell 3104 of the shear wall body 310 is located on the side of the shear wall facing outdoors. The inner membrane shell 3102 and the outer membrane shell 3104 are arranged opposite and parallel to each other, and the wall cavity 315 is formed by the inner membrane shell 3102, the outer membrane shell 3104, and the prefabricated steel column modules 100 on both sides. In other words, at the construction site, the concrete poured into the prefabricated shear wall 300 will be poured between the inner membrane shell 3102, the outer membrane shell 3104, and the two prefabricated steel column modules 100 of the shear wall body 310.

[0147] Because the inner membrane shell 3102 and the outer membrane shell 3104 included in the shear wall body 310 can be used as wall side panels in the module production and hoisting stages and as templates in the construction stage, the prefabricated room module provided by the embodiment of the present invention can not only improve the module rigidity in the production and transportation stages, but also avoid the on-site shear wall reinforcement binding and template support work, saving construction steps and construction personnel.

[0148] The present application also provides a modular building in an embodiment, including the above-mentioned prefabricated steel column module 100, assembled steel structure 200 or prefabricated shear wall 300. The modular building has the beneficial effects of the above-mentioned steel column module, which will not be described in detail here.

[0149] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0150] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A prefabricated steel column module, characterized in that: include: A steel column body, the steel column body comprising a first end and a second end opposite to each other, the first end being provided with a first plug-in groove along the axial direction; A first steel column assembly, wherein an outer wall of one end of the first steel column assembly is provided with a first convex ridge extending along a first preset direction, and a plug-in plate is provided axially at the other end, the plug-in plate is plugged into the first plug-in slot, and the other end of the first steel column assembly is plugged into the steel column body and fixedly connected to the steel column body through the plug-in plate; and A second steel column assembly, wherein the inner side wall of the second steel column assembly is convexly provided with a second convex ridge extending along a second preset direction, and the second steel column assembly is fixedly connected to the second end of the steel column body.

2. The prefabricated steel column module according to claim 1, characterized in that: The first steel column assembly includes a first steel column, the first convex ridge is convexly arranged on the outer side wall of the first steel column, a second plug-in slot is axially opened at one end of the first steel column, and the plug-in plate is plugged into the second plug-in slot.

3. The prefabricated steel column module according to claim 2, characterized in that: The first plug-in slot is coplanar with the second plug-in slot, the middle position of the plug-in board matches with the second plug-in slot, and the two side positions of the plug-in board match with the first plug-in slot.

4. The prefabricated steel column module according to claim 2, characterized in that: The first plug-in slot is coplanar with the central axis of the steel column body, and the second plug-in slot is coplanar with the central axis of the first steel column.

5. The prefabricated steel column module according to claim 2, characterized in that: The first steel column assembly further includes a plurality of first steel bars, which are arranged at intervals on the outer side wall of the first steel column and extend along the first preset direction to form the first convex ridge.

6. The prefabricated steel column module according to claim 2, characterized in that: The first steel column assembly also includes a guide member, which is at least partially fixedly connected to the outer side wall of the first steel column, and is used to adapt to the inner wall of the second steel column assembly of another prefabricated steel column module that is sleeved with the prefabricated steel column module.

7. The prefabricated steel column module according to claim 6, characterized in that: The guide member includes a support ear, and the support ear is fixedly connected to the outer side wall of the first steel column at a diagonal position.

8. The prefabricated steel column module according to claim 7, characterized in that: The side of the support ear away from the first steel column is an arc-shaped structure.

9. The prefabricated steel column module according to claim 6, characterized in that: The guide member includes a guide cone and a guide column that are fixedly connected. The guide column is fixedly connected to the outer wall of the first steel column at a diagonal position. The guide cone is connected to the end of the guide column and is located at an end of the first steel column away from the second plug-in slot.

10. The prefabricated steel column module according to claim 9, characterized in that: There are multiple guide pillars, and the multiple guide pillars are fixed one-to-one to the outer wall of the diagonal position of the first steel column; the guide cone includes conical pieces connected to the guide pillars one-to-one, and the conical pieces intersect at the middle position on the side away from the guide pillars.

11. The prefabricated steel column module according to claim 1, characterized in that: The second steel column assembly includes a second steel column and a connection assembly; The side wall of the second steel column is provided with a plurality of welding grooves, and one side of the connecting component has a concave-convex shape to form a plurality of welding grooves along the second A second convex ridge extends in a preset direction, and the other side of the connecting component is arranged on the inner wall of the second steel column. The connecting component and the second steel column are welded and fixed at the welding groove position.

12. The prefabricated steel column module according to claim 11, characterized in that: The connecting assembly includes a steel plate and a second steel bar, the second steel bar is in multiple number, the steel plate includes a first side surface and a second side surface facing each other, the multiple second steel bars are welded to the first side surface of the steel plate in sequence and at intervals, the multiple second steel bars extend along the second preset direction to form the second ridge, and the second side surface of the steel plate is arranged on the inner side wall of the second steel column.

13. The prefabricated steel column module according to claim 11, characterized in that: The connecting assembly includes a steel plate, which includes a first side surface and a second side surface facing each other, the first side surface is provided with a plurality of second ridges extending along a second preset direction, and the second side surface of the steel plate is arranged on the inner side wall of the second steel column.

14. The prefabricated steel column module according to claim 13, characterized in that: A plurality of grooves are sequentially and spaced apart on the first side surface of the steel plate. The plurality of grooves extend along the second preset direction, and the second convex ridge is formed between any two adjacent grooves.

15. The prefabricated steel column module according to claim 1, characterized in that: The second steel column assembly includes a second steel column and a third steel column, the side wall of the second steel column is provided with a plurality of welding grooves, the third steel column is a hollow columnar structure and includes a plurality of beams extending along the second preset direction; The third steel column is embedded in the second steel column, and the welding groove corresponds to at least a portion of the crossbeam, and the second steel column and the third steel column are welded and fixed at the welding groove.

16. The prefabricated steel column module according to claim 15, characterized in that: The third steel column also includes a vertical beam, which extends axially. The cross beam is connected between two adjacent vertical beams, and the vertical beam and the cross beam enclose the hollow columnar structure, wherein the axial direction has an angle with the second preset direction.

17. The prefabricated steel column module according to claim 15, characterized in that: The third steel column is a rectangular steel plate, which is provided with a plurality of through slots extending along the second preset direction, so that the crossbeam is formed between two adjacent through slots. The rectangular steel plate is bent multiple times in sequence along the second preset direction, and is welded end to end after bending to form a hollow columnar structure.

18. An assembled steel structure, characterized in that: It comprises at least two prefabricated steel column modules as described in any one of claims 1 to 17, wherein the at least two prefabricated steel column modules comprise a lower steel column module and an upper steel column module, the second steel column assembly of the upper steel column module is sleeved on the first steel column assembly of the lower steel column module, and the second steel column assembly of the upper steel column module is abutted against the top of the steel column body of the lower steel column module.

19. A prefabricated shear wall, characterized in that: include: A shear wall body, wherein the shear wall body has a receiving cavity; and Two prefabricated steel column modules as described in claims 1-17, wherein the two prefabricated steel column modules are fixedly connected to both sides of the shear wall body along the length direction, and the shear wall body and the two prefabricated steel column modules enclose a wall cavity for cast-in-place concrete.

20. The prefabricated shear wall according to claim 19, characterized in that: The shear wall body comprises an inner membrane shell and an outer membrane shell which are arranged relatively parallel to each other. The inner membrane shell, the outer membrane shell and the two prefabricated steel column modules enclose the wall cavity.

21. The prefabricated shear wall according to claim 19, characterized in that: It also includes a shear wall steel frame, which is fixedly connected in the wall cavity, and two ends of the shear wall steel frame are respectively fixedly connected to the two prefabricated steel column modules.

22. The prefabricated shear wall according to claim 19, characterized in that: The two prefabricated steel column modules are fixedly connected to two sides of the shear wall body along the length direction and are located in the accommodating cavity.

23. A modular building, characterized in that: It comprises the prefabricated steel column module as described in any one of claims 1 to 17, the assembled steel structure as described in claim 18, or the prefabricated shear wall as described in any one of claims 19 to 22.

Images