Prefabricated building steel structure

Abstract

The application relates to the technical field of building structures, and provides a fabricated building steel structure, which comprises a first connecting component, a second connecting component and a connecting beam.The first connecting component comprises a circular ring-shaped main body, a first installation groove is formed on the outer circumferential side of the circular ring-shaped main body, a plurality of first installation positions are formed in the first installation groove along the circumferential direction of the circular ring-shaped main body, and a plurality of connecting positions are arranged around the axis of the circular ring-shaped main body on the axial end face of the circular ring-shaped main body.The second connecting component comprises a semi-circular ring-shaped main body, the two end faces in the circumferential direction of the semi-circular ring-shaped main body can be selectively connected to the connecting positions, a second installation groove is formed on the outer circumferential side of the semi-circular ring-shaped main body, and a plurality of second installation positions are formed in the second installation groove along the circumferential direction of the semi-circular ring-shaped main body.The end of the connecting beam can be detachably connected to any first installation position and any second installation position, and the fabricated building steel structure is helpful for the rapid and efficient installation and construction of a building structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building structures, and more particularly to a fabricated building steel structure. BACKGROUND

[0002] Fabricated steel structure buildings have become an important development direction in the field of modern buildings due to their high construction efficiency, high industrialization degree, and outstanding environmental performance. In conventional rectangular or regular plan layout buildings, standardized steel beams and uniformly angled nodes can meet most connection requirements, providing good economy and construction convenience.

[0003] However, with the development of architectural design concepts, a large number of complex building structures (such as biomorphic stadiums, art venues, etc.) are increasingly widely used. Such buildings often use non-orthogonal, multi-angle intersecting space grid structures (with the "Bird's Nest" National Stadium as a typical representative), and the spatial angles between the beam bodies are highly irregular: the included angle between adjacent steel beams can be 30°, 45°, 60°, 90°, or even any acute or obtuse angle. This results in a large number of node connection components between beams and beams, requiring a large number of node connection components with different types, shapes, and sizes. The node connection components cannot be used interchangeably due to angle differences, and the node connection components have poor versatility, resulting in the need for customization of dozens or even hundreds of specifications of node connection components in a single project, significantly increasing the complexity of design, production, and inventory management. Non-standard nodes require independent mold casting or machining, with high single-piece costs; strict matching of node connection component types is required during on-site construction, with low fault tolerance, reduced installation efficiency, extended construction period, and increased construction difficulty and cost. SUMMARY

[0004] Therefore, the present application provides a fabricated building steel structure to solve the technical problems of low installation efficiency and poor versatility of node connection components in the prior art.

[0005] The present application provides a fabricated building steel structure, wherein the fabricated building steel structure comprises:

[0006] A first connection component comprises a circular ring-shaped body, a first installation groove is formed on the outer circumference side of the circular ring-shaped body, a plurality of first installation sites are formed in the first installation groove along the circumferential direction of the circular ring-shaped body, and a plurality of connection sites are arranged around the axis of the circular ring-shaped body on the axial end face of the circular ring-shaped body.

[0007] The second connecting member comprises a semi-circular ring-shaped body, two end faces of the semi-circular ring-shaped body in the circumferential direction can be selectively connected to the plurality of connecting positions, a second mounting groove is formed on the outer circumferential side of the semi-circular ring-shaped body, and a plurality of second mounting positions are formed in the second mounting groove along the circumferential direction of the semi-circular ring-shaped body;

[0008] The connecting beam can be detachably connected to any first mounting position and any second mounting position.

[0009] Further, the second connecting member further comprises an arc-shaped body, the central angle of the arc-shaped body is 90°, the first end of the arc-shaped body in the circumferential direction is hinged to the axial end face of the semi-circular ring-shaped body, the two end faces of the semi-circular ring-shaped body in the circumferential direction and the second end of the arc-shaped body in the circumferential direction can be simultaneously connected to different connecting positions in the plurality of connecting positions respectively, a third mounting groove is formed on the outer circumferential side of the arc-shaped body, and a plurality of third mounting positions are formed in the third mounting groove along the circumferential direction of the arc-shaped body, and the end of the connecting beam can be detachably connected to any third mounting position.

[0010] Further, when the semi-circular ring-shaped body is connected to the connecting position, the axis of the semi-circular ring-shaped body and the axis of the circular ring-shaped body are perpendicular to each other.

[0011] Further, the outer diameter of the circular ring-shaped body, the outer diameter of the semi-circular ring-shaped body and the outer diameter of the arc-shaped body are equal, and the inner diameter of the circular ring-shaped body, the inner diameter of the semi-circular ring-shaped body and the inner diameter of the arc-shaped body are equal.

[0012] Further, the groove width of the first mounting groove, the groove width of the second mounting groove and the groove width of the third mounting groove are equal, and the groove depth of the first mounting groove, the groove depth of the second mounting groove and the groove depth of the third mounting groove are equal.

[0013] Further, the prefabricated building steel structure comprises a plug-in sleeve capable of being connected to the first mounting position, the second mounting position and the third mounting position, and the end of the connecting beam can be plugged into the plug-in sleeve.

[0014] Further, the two axial ends of the circular ring-shaped body respectively form a first circular ring plate and a second circular ring plate, the inner sides of the first circular ring plate and the second circular ring plate are connected by an intermediate ring sleeve, a plurality of first through holes are formed on the first circular ring plate and the second circular ring plate, a plurality of second through holes are formed on the intermediate ring sleeve in the circumferential direction, the first through holes and the second through holes correspond to the first mounting positions, the axes of the first through holes and the axes of the second through holes are perpendicular, and the plug-in sleeve can be fixed to any first mounting position by a threaded fastener passing through the first through hole and the second through hole.

[0015] Further, the axial two ends of the semicircular ring-shaped body form a first semicircular ring plate and a second semicircular ring plate, respectively, the inner sides of the first semicircular ring plate and the second semicircular ring plate are connected by an intermediate semicircular ring sleeve, the first semicircular ring plate and the second semicircular ring plate are formed with first arc-shaped through grooves aligned with each other, the arc centers of the first arc-shaped through grooves are located on the axis of the semicircular ring-shaped body, the intermediate semicircular ring sleeve is formed with second arc-shaped through grooves in the circumferential direction, the first arc-shaped through grooves and the second arc-shaped through grooves correspond to the second mounting positions, the plug-in sleeve can be fixed in any second mounting position by a threaded fastener passing through the first arc-shaped through groove and the second arc-shaped through groove; the axial two ends of the arc-shaped body form a first arc plate and a second arc plate, respectively, the inner sides of the first arc plate and the second arc plate are connected by an arc-shaped bending plate, the first arc plate and the second arc plate are formed with third arc-shaped through grooves, the arc-shaped bending plate is formed with fourth arc-shaped through grooves in the circumferential direction, the third arc-shaped through grooves and the fourth arc-shaped through grooves correspond to the third mounting positions, the plug-in sleeve can be fixed in any third mounting position by a threaded fastener passing through the third arc-shaped through groove and the fourth arc-shaped through groove.

[0016] Further, the number of the connecting beams is multiple, and the multiple connecting beams have different lengths.

[0017] Further, the connecting beams include a first telescopic beam and a second telescopic beam, the first end of the second telescopic beam is telescopically installed in the first telescopic beam, and the second end of the second telescopic beam forms a connecting head, the cross-sectional size of the connecting head is consistent with the cross-sectional size of the first telescopic beam.

[0018] The assembled building steel structure provided by the application has the following beneficial effects:

[0019] Compared with the prior art, the first connecting member and the second connecting member are used as the node connecting member of the adjacent connecting beam in the fabricated building steel structure provided by the application, the outer circumferential side of the circular ring body is formed with a first installation groove, a plurality of first installation positions are formed in the first installation groove, a plurality of connecting positions are arranged on the axial end face of the circular ring body, the two end faces in the circumferential direction of the semicircular ring body can be selectively connected to the plurality of connecting positions, the outer circumferential side of the semicircular ring body is formed with a second installation groove, a plurality of second installation positions are formed in the second installation groove, the connecting beam can be connected to any first installation position and second installation position, so that the connecting beam can have a plurality of optional angle installation positions relative to the first connecting member and the second connecting member, the first connecting member and the second connecting member can meet the requirements of the multi-angle connection arrangement of the connecting beam, the node connecting member has high universality and adaptability, so that the fabricated building steel structure is helpful for the rapid and efficient installation and construction of the building structure, and when applied to the building structure, one end of the connecting beam is connected to the first installation position corresponding to one circular ring body or the second installation position corresponding to one semicircular ring body, the other end of the connecting beam is connected to the first installation position corresponding to another circular ring body or the second installation position corresponding to another semicircular ring body, and the above is repeated to form a complex multi-angle intersecting space grid structure.

[0020] Other benefits of the application will be described below. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is a three-dimensional schematic view of the partial structure of the fabricated building steel structure of an embodiment of the present application.

[0023] Figure 2 It is a three-dimensional schematic view of the cooperation of the first connecting member and the second connecting member in the fabricated building steel structure of an embodiment of the present application.

[0024] Figure 3 It is a three-dimensional schematic view of the first connecting member in the fabricated building steel structure of an embodiment of the present application.

[0025] Figure 4 It is a three-dimensional schematic view of the second connecting member in the fabricated building steel structure of an embodiment of the present application.

[0026] Figure 5A planar schematic view of a second connecting member in a prefabricated building steel structure according to an embodiment of the present application in a certain state;

[0027] Figure 6 A three-dimensional schematic view of a plug-in sleeve in a prefabricated building steel structure according to an embodiment of the present application;

[0028] Figure 7 A connection schematic view of a prefabricated building steel structure according to an embodiment of the present application;

[0029] Figure 8 A three-dimensional schematic view of a connecting beam in a prefabricated building steel structure according to an embodiment of the present application.

[0030] Legend of reference signs:

[0031] 1-connecting beam; 2-hinge shaft; 3-first telescopic beam; 4-second telescopic beam; 5-locking screw; 41-connecting head; 100-circular ring-shaped main body; 101-first mounting groove; 102-first circular ring plate; 103-second circular ring plate; 104-intermediate ring sleeve; 105-first through hole; 106-second through hole; 200-semi-circular ring-shaped main body; 201-second mounting groove; 202-first end plate; 203-first semi-circular ring plate; 204-second semi-circular ring plate; 205-intermediate semi-circular ring sleeve; 208-first arc-shaped through groove; 209-second arc-shaped through groove; 300-circular arc-shaped main body; 301-third mounting groove; 302-first circular arc plate; 303-second circular arc plate; 304-circular arc-shaped curved plate; 307-second end plate; 308-third arc-shaped through groove; 309-fourth arc-shaped through groove; 400-plug-in sleeve; 401-bottom plate; 402-side through hole; 403-bottom through hole. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings show one or at least three embodiments of the present application, so that the understanding of the technical solutions disclosed by the present application is more accurate and thorough. However, it should be understood that the present application can be realized in various forms, and is not limited to the embodiments described below.

[0033] The same or similar reference numerals in the drawings of the present application correspond to the same or similar components; in the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0034] In addition, if the present application has a description involving "first", "second", etc. in the embodiments, the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme.

[0035] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection claimed by the present application.

[0036] Referring to Figures 1 to 7 The present application provides a fabricated building steel structure, wherein the fabricated building steel structure comprises:

[0037] The first connecting member comprises a circular ring-shaped main body 100, a first mounting groove 101 is formed on the outer circumference side of the circular ring-shaped main body 100, a plurality of first mounting positions are formed in the first mounting groove 101 along the circumferential direction of the circular ring-shaped main body 100, and a plurality of connecting positions are arranged around the axis of the circular ring-shaped main body 100 on the axial end face of the circular ring-shaped main body 100;

[0038] The second connecting member comprises a semi-circular ring-shaped main body 200, the two end faces of the semi-circular ring-shaped main body 200 in the circumferential direction can be selectively connected to the plurality of connecting positions, a second mounting groove 201 is formed on the outer circumference side of the semi-circular ring-shaped main body 200, and a plurality of second mounting positions are formed in the second mounting groove 201 along the circumferential direction of the semi-circular ring-shaped main body 200;

[0039] The connecting beam 1 can be detachably connected to any first mounting position and any second mounting position.

[0040] The first connecting member and the second connecting member are used as the node connecting member of the adjacent connecting beam 1 in the prefabricated building steel structure, the outer circumferential side of the circular ring body 100 is provided with a first installation groove 101, a plurality of first installation positions are formed in the first installation groove 101, a plurality of connecting positions are arranged on the axial end surface of the circular ring body 100, the two end surfaces in the circumferential direction of the semicircular ring body 200 can be selectively connected to the plurality of connecting positions, the outer circumferential side of the semicircular ring body 200 is provided with a second installation groove 201, a plurality of second installation positions are formed in the second installation groove 201, the connecting beam 1 can be connected to any first installation position and second installation position, so that the connecting beam 1 can have a plurality of optional angle installation positions relative to the first connecting member and the second connecting member, the first connecting member and the second connecting member can meet the requirements of a plurality of angle connection arrangements of the connecting beam 1, the node connecting member has high universality and adaptability, so that the prefabricated building steel structure is helpful for rapid and efficient installation and construction of the building structure, and when applied to the building structure, one end of the connecting beam 1 is connected to the corresponding first installation position of one circular ring body 100 or the corresponding second installation position of one semicircular ring body 200, the other end of the connecting beam 1 is connected to the corresponding first installation position of another circular ring body 100 or the corresponding second installation position of another semicircular ring body 200, and the above process is repeated to form a complex spatial grid structure with a plurality of angles.

[0041] According to one embodiment of the present application, the second connecting member further comprises a circular arc body 300, the central angle of the circular arc body 300 is 90°, the first end of the circular arc body 300 in the circumferential direction is hinged to the axial end surface of the semicircular ring body 200 through a hinge shaft 2, the two end surfaces in the circumferential direction of the semicircular ring body 200 and the second end of the circular arc body 300 in the circumferential direction can be simultaneously connected to different connecting positions in the plurality of connecting positions, the outer circumferential side of the circular arc body 300 is provided with a third installation groove 301, a plurality of third installation positions are formed in the third installation groove 301 along the circumferential direction of the circular arc body 300, and the end of the connecting beam 1 can be detachably connected to any third installation position. Since the first end of the circular arc body 300 in the circumferential direction is hinged to the axial end surface of the semicircular ring body 200, the angle of the circular arc body 300 relative to the semicircular ring body 200 can be changed, so that the connecting beam 1 connected to the third installation position not only has a plurality of angle arrangement modes relative to the circular arc body 300 itself, but also has a plurality of angle arrangement modes relative to the semicircular ring body 200, thereby further improving the adaptability and universality of the prefabricated building steel structure to the multi-angle installation arrangement mode of the connecting beam 1. According to the needs, one semicircular ring body 200 can be hinged to one or more circular arc bodies 300.

[0042] According to the preferred embodiment of the present application, when the semicircular annular body 200 is connected to the connecting position, the axis of the semicircular annular body 200 and the axis of the circular annular body 100 are perpendicular to each other, and when applied to a building structure, the axis of the circular annular body 100 can be arranged in the vertical direction, and the upper and lower parts of the circular annular body 100 can be installed with the semicircular annular body 200.

[0043] According to one embodiment of the present application, the outer diameter of the circular annular body 100, the outer diameter of the semicircular annular body 200, and the outer diameter of the circular arc body 300 are all equal, and the inner diameter of the circular annular body 100, the inner diameter of the semicircular annular body 200, and the inner diameter of the circular arc body 300 are all equal. The slot width of the first mounting slot 101, the slot width of the second mounting slot 201, and the slot width of the third mounting slot 301 are all equal, and the slot depth of the first mounting slot 101, the slot depth of the second mounting slot 201, and the slot depth of the third mounting slot 301 are all equal.

[0044] According to the preferred embodiment of the present application, the prefabricated building steel structure includes a plug-in sleeve 400 that can be connected to the first mounting position, the second mounting position, and the third mounting position. The plug-in sleeve 400 can be fixed to the circular annular body 100, the semicircular annular body 200, and the circular arc body 300 by means of bolts or other threaded fasteners. The end of the connecting beam 1 can be inserted into the plug-in sleeve 400, which increases the fault tolerance of the components and improves the assembly efficiency of the connecting beam 1. In particular, in the case where the slot width and slot depth of the corresponding mounting slots of the circular annular body 100, the semicircular annular body 200, and the circular arc body 300 are consistent, one type of plug-in sleeve 400 can be adapted to the circular annular body 100, the semicircular annular body 200, and the circular arc body 300, further improving the adaptability and versatility of the components of the prefabricated building steel structure.

[0045] Of course, as other embodiments, the plug-in sleeve 400 is not designed, and the connecting beam 1 can be directly connected to the first mounting position, the second mounting position, and the third mounting position, or the end of the connecting beam 1 can be inserted into the plug-in sleeve 400 and then further fixed to the plug-in sleeve 400 by other components (such as bolts or other threaded fasteners).

[0046] According to one embodiment of the present application, the axial ends of the circular ring body 100 are formed with a first circular ring plate 102 and a second circular ring plate 103, respectively, and the inner sides of the first circular ring plate 102 and the second circular ring plate 103 are connected by an intermediate ring sleeve 104. The first circular ring plate 102 and the second circular ring plate 103 are connected by a first mounting groove 101. A plurality of first through holes 105 are formed on the first circular ring plate 102 and the second circular ring plate 103. A plurality of second through holes 106 are formed in the circumferential direction of the intermediate ring sleeve 104. The number of the first through holes 105 and the second through holes 106 can be 16, 18, or other suitable numbers. The first through holes 105 and the second through holes 106 correspond to the first mounting positions. Each first through hole 105 or each second through hole 106 can correspond to one first mounting position, or several first through holes 105 or several second through holes 106 can correspond to one first mounting position. The axis of the first through hole 105 is perpendicular to the axis of the second through hole 106. The insertion sleeve 400 can be fixed to any first mounting position by a threaded fastener passing through the first through hole 105 and the second through hole 106. Therefore, the insertion sleeve 400 should be provided with a hole (preferably a threaded hole) for the threaded fastener to pass through. The first through hole 105 and the second through hole 106 can also serve as connection positions for connecting the circumferential ends of the semi-circular ring body 200 to the circular ring body 100. The circumferential ends of the semi-circular ring body 200 are respectively formed with a first end plate 202. The first end plate 202 is provided with hole positions adapted to the first through hole 105 and the second through hole 106. In this way, a threaded fastener such as a bolt can pass through the hole positions on the first end plate 202 to connect to the first through hole 105 or the second through hole 106.

[0047] According to one embodiment of the present application, the axial two ends of the semi-circular ring body 200 form a first semi-circular ring plate 203 and a second semi-circular ring plate 204, respectively, and the inner sides of the first semi-circular ring plate 203 and the second semi-circular ring plate 204 are connected by a middle semi-circular ring sleeve 205. The first semi-circular ring plate 203 and the second semi-circular ring plate 204 each form a first arc-shaped through slot 208 aligned with each other, and the arc center of the first arc-shaped through slot 208 is located on the axis of the semi-circular ring body 200. The middle semi-circular ring sleeve 205 forms a second arc-shaped through slot 209 in the circumferential direction. The first arc-shaped through slot 208 and the second arc-shaped through slot 209 each correspond to a second mounting position. The insertion sleeve 400 can be fixed to any second mounting position by a threaded fastener passing through the first arc-shaped through slot 208 and the second arc-shaped through slot 209. Therefore, the insertion sleeve 400 should be provided with a hole (preferably a threaded hole) for the threaded fastener to pass through. The axial two ends of the circular arc body 300 form a first circular arc plate 302 and a second circular arc plate 303, respectively, and the inner sides of the first circular arc plate 302 and the second circular arc plate 303 are connected by a circular arc-shaped bending plate 304. The first circular arc plate 302 and the second circular arc plate 303 each form a third arc-shaped through slot 308. The circular arc-shaped bending plate 304 forms a fourth arc-shaped through slot 309 in the circumferential direction. The third arc-shaped through slot 308 and the fourth arc-shaped through slot 309 each correspond to a third mounting position. The insertion sleeve 400 can be fixed to any third mounting position by a threaded fastener passing through the third arc-shaped through slot 308 and the fourth arc-shaped through slot 309. Therefore, the insertion sleeve 400 should be provided with a hole (preferably a threaded hole) for the threaded fastener to pass through. The advantage of this embodiment is that it can achieve stepless change arrangement of the connection angle of the connecting beam 1 on the semi-circular ring body 200 and the circular arc body 300.

[0048] In addition, the first through hole 105 and the second through hole 106 can also serve as connection positions for connecting the second end of the circular arc body 300 to the circular ring body 100. The second end of the circular arc body 300 forms a second end plate 307 in the circumferential direction of the circular arc body 300. The second end plate 307 forms a hole position adapted to the first through hole 105 and the second through hole 106. In this way, a threaded fastener such as a bolt can be passed through the hole position on the second end plate 307 to be connected to the first through hole 105 or the second through hole 106. The end of the first circular arc plate 302 away from the second end plate 307 is hinged to the first semi-circular ring plate 203 or the second semi-circular ring plate 204 by the hinge shaft 2.

[0049] According to another embodiment of the present application, the axial two ends of the semicircular ring body 200 form a first semicircular ring plate 203 and a second semicircular ring plate 204 respectively, the inner sides of the first semicircular ring plate 203 and the second semicircular ring plate 204 are connected by an intermediate semicircular ring sleeve 205, the second mounting groove 201 is between the first semicircular ring plate 203 and the second semicircular ring plate 204, a plurality of third through holes are formed on the first semicircular ring plate 203 and the second semicircular ring plate 204, a plurality of fourth through holes are formed in the circumferential direction of the intermediate semicircular ring sleeve 205, the third through holes and the fourth through holes correspond to the second mounting positions and the axes of the third through holes are perpendicular to the axes of the fourth through holes, the plug-in sleeve 400 can be fixed to any second mounting position by a threaded fastener passing through the third through hole and the fourth through hole, so the plug-in sleeve 400 should be provided with a hole position (preferably a threaded hole) for the threaded fastener to pass through; the axial two ends of the circular arc body 300 form a first circular arc plate 302 and a second circular arc plate 303 respectively, the third mounting groove 301 is between the first circular arc plate 302 and the second circular arc plate 303, the inner sides of the first circular arc plate 302 and the second circular arc plate 303 are connected by a circular arc bending plate 304, a plurality of fifth through holes are formed on the first circular arc plate 302 and the second circular arc plate 303, a plurality of sixth through holes are formed in the circumferential direction of the circular arc bending plate 304, the fifth through holes and the sixth through holes correspond to the third mounting positions and the axes of the fifth through holes are perpendicular to the axes of the sixth through holes, the plug-in sleeve 400 can be fixed to any third mounting position by a threaded fastener passing through the fifth through hole and the sixth through hole, so the plug-in sleeve 400 should be provided with a hole position (preferably a threaded hole) for the threaded fastener to pass through, the arrangement tracks of the third through holes and the fifth through holes are similar to one of the arrangement tracks of the first through holes 105, the arrangement tracks of the fourth through holes and the sixth through holes are similar to one of the arrangement tracks of the second through holes 106, which will not be described here.

[0050] In addition, one end of the plug-in sleeve 400 forms a port for the connection beam 1 to insert, the other end forms a bottom plate 401, the outer side of the bottom plate 401 forms an inner concave arc surface in contact with the intermediate ring sleeve 104, the intermediate semicircular ring sleeve 205 and the circular arc bending plate 304, which can make the plug-in sleeve 400 more stably fixed in the first mounting groove 101, the second mounting groove 201 and the third mounting groove 301, the hole positions of the plug-in sleeve 400 for the threaded fastener to pass through are specifically side through holes 402 located on the side walls and bottom through holes 403 located on the bottom plate 401, if the connection beam 1 also needs to be fixed by a threaded fastener, the connection beam 1 is provided with corresponding hole positions at the positions corresponding to the side through holes 402 and the bottom through holes 403.

[0051] According to a specific embodiment of the present application, the number of connection beams 1 is multiple, and the multiple connection beams 1 have connection beams 1 with different lengths.

[0052] Referring to Figure 8According to one embodiment of the present application, the connecting beam 1 comprises a first telescopic beam 3 and a second telescopic beam 4, the first end of the second telescopic beam 4 is telescopically mounted in the first telescopic beam 3 and can be locked to the first telescopic beam 3 by a locking screw 5, the second end of the second telescopic beam 4 forms a connecting head 41, the cross-sectional size of the connecting head 41 is consistent with the cross-sectional size of the first telescopic beam 3, so that the size of the two ends of the entire connecting beam 1 is still the same, which can be well adapted to the same size type of plug-in sleeve 400, the first telescopic beam 3 and the second telescopic beam 4 can flexibly adjust the length of the connecting beam 1 to adapt to different length requirements of the connecting beam 1 between two connecting nodes, and the first telescopic beam 3 and the second telescopic beam 4 can be rectangular tube structures and the like.

[0053] It should be noted that the above embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it should not be construed as a limitation of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, such as the combination of different features in each embodiment, which should be within the scope of protection of the present application.

Claims

1. A prefabricated steel structure for buildings, characterized in that, The prefabricated building steel structure includes: The first connecting member includes an annular body. A first mounting groove is formed on the outer circumference of the annular body. Multiple first mounting positions are formed in the first mounting groove along the circumferential direction of the annular body. Multiple connecting positions are arranged around the axis of the annular body on the axial end face of the annular body. The second connecting member includes a semi-circular annular body, the two end faces of the semi-circular annular body in the circumferential direction can be selectively connected to the plurality of connecting positions, a second mounting groove is formed on the outer circumferential side of the semi-circular annular body, and a plurality of second mounting positions are formed in the second mounting groove along the circumferential direction of the semi-circular annular body. A connecting beam, the ends of which can be detachably connected to either a first mounting position and either a second mounting position; The second connecting member further includes an arc-shaped body with a central angle of 90°. The first end of the arc-shaped body in the circumferential direction is hinged to the axial end face of the semi-circular annular body. The two end faces of the semi-circular annular body and the second end of the arc-shaped body in the circumferential direction can each be simultaneously connected to different connection positions among the plurality of connection positions. A third mounting groove is formed on the outer circumferential side of the arc-shaped body. A plurality of third mounting positions are formed in the third mounting groove along the circumferential direction of the arc-shaped body. The end of the connecting beam can be detachably connected to any of the third mounting positions.

2. The prefabricated steel structure for buildings according to claim 1, characterized in that, When the semi-circular annular body is connected to the connection position, the axis of the semi-circular annular body intersects perpendicularly with the axis of the circular annular body.

3. The prefabricated steel structure for buildings according to claim 2, characterized in that, The outer diameters of the circular body, the semi-circular body, and the arc-shaped body are all equal, as are the inner diameters of the circular body, the semi-circular body, and the arc-shaped body.

4. The prefabricated steel structure for buildings according to claim 3, characterized in that, The widths of the first mounting groove, the second mounting groove, and the third mounting groove are all equal, as are the depths of the first mounting groove, the second mounting groove, and the third mounting groove.

5. The prefabricated steel structure for buildings according to claim 4, characterized in that, The prefabricated building steel structure includes insert sleeves that can be connected to the first mounting position, the second mounting position, and the third mounting position, and the end of the connecting beam can be inserted into the insert sleeves.

6. The prefabricated steel structure for buildings according to claim 5, characterized in that, The annular body has a first annular plate and a second annular plate formed at its two axial ends, respectively. The inner sides of the first annular plate and the second annular plate are connected by an intermediate ring sleeve. Multiple first through holes are formed on both the first annular plate and the second annular plate. Multiple second through holes are formed in the circumferential direction of the intermediate ring sleeve. The first through holes and the second through holes correspond to the first mounting positions, and the axis of the first through hole is perpendicular to the axis of the second through hole. The insert sleeve can be fixed to any first mounting position by threaded fasteners passing through the first through holes and the second through holes.

7. The prefabricated steel structure for buildings according to claim 6, characterized in that, The semi-circular annular body has a first semi-circular annular plate and a second semi-circular annular plate formed at its two axial ends, respectively. The inner sides of the first and second semi-circular annular plates are connected by a middle semi-circular annular sleeve. Both the first and second semi-circular annular plates have aligned first arc-shaped through grooves, the center of which is located on the axis of the semi-circular annular body. The middle semi-circular annular sleeve has a second arc-shaped through groove formed on its circumference. Both the first and second arc-shaped through grooves correspond to the second mounting position. The insert sleeve can pass through the first and second arc-shaped through grooves. The threaded fastener with the through groove is fixed to any second mounting position; the axial ends of the arc-shaped body are respectively formed with a first arc plate and a second arc plate, the inner sides of the first arc plate and the second arc plate are connected by an arc-shaped bending plate, a third arc-shaped through groove is formed on both the first arc plate and the second arc plate, and a fourth arc-shaped through groove is formed in the circumferential direction of the arc-shaped bending plate. The third arc-shaped through groove and the fourth arc-shaped through groove correspond to the third mounting position, and the insert sleeve can be fixed to any third mounting position by threaded fasteners passing through the third arc-shaped through groove and the fourth arc-shaped through groove.

8. The prefabricated steel structure for buildings according to any one of claims 1 to 7, characterized in that, The number of connecting beams is multiple, and the multiple connecting beams have connecting beams of different lengths.

9. The prefabricated steel structure for buildings according to any one of claims 1 to 7, characterized in that, The connecting beam includes a first telescopic beam and a second telescopic beam. The first end of the second telescopic beam is telescopically installed inside the first telescopic beam, and the second end of the second telescopic beam forms a connector. The cross-sectional dimensions of the connector are the same as those of the first telescopic beam.

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