A large-scale space prefabricated building structure

Abstract

The present invention belongs to the technical field of prefabricated buildings, and specifically relates to a large-space prefabricated building structure, which includes column structures arranged in a row, a steel frame structure connected between the column structures to form a load-bearing main beam, at least four groups of force guiding structures wound between two steel frame structures. When the column structures are arranged in three groups, the middle column structure is the main one to form a tension structure that pulls towards both sides. The present invention can enable the beam-columns at the upper and lower ends to still have a stable clamping function on the fractured steel plate body. Compared with the external fixation method, it is more secure and remedial, reducing the occurrence of secondary injuries after the truss fractures, and can make the connection between two adjacent steel trusses more connected. The column structure, the steel frame structure and the force guiding structure form the entire force guiding system, dispersing the main tension force to the bottom truss, having the effect of load dispersion, enabling the steel frame structure to have stronger stability, and helping to solve the problem of sinking caused by uneven pressure of the steel truss.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and particularly relates to a large-space prefabricated building structure. Background Art

[0002] With the development of social economy and the continuous progress of building technology, which also shows a gradually increasing trend, large-space buildings mainly refer to buildings with a relatively large single-layer area, high floor-to-floor height, and large span. At present, according to the diversity of functions, the building space of large-space buildings is divided. Starting from the deep coordination of space and function, to ensure that large-space buildings meet the actual needs of people's production and life, column separation is basically carried out at fixed intervals; from the aspects of the required activity range, activity mode, and information transmission, for example, the space design of buildings such as conferences and performances requires a relatively large span without column structure obstruction.

[0003] In prefabricated buildings, building components need to be processed and manufactured in the factory in advance and installed on-site. During the installation process, concrete also needs to be poured to make the connection between the two walls have a load-bearing function to ensure the safety of the house. However, due to the large span area of large-space buildings, unlike conventional house building panels that are dense and the load-bearing surfaces are evenly distributed, when assembling large-space buildings, steel trusses are used as the main load-bearing building structure. When installing the steel truss and column node, in order to reduce the load between the steel trusses, in the construction process of some construction sites, triangular braces are added to the steel trusses, which inevitably increases the on-site operation, and the construction steps are cumbersome. At the same time, the adjacent two steel trusses are relatively independent, making the overall space load force more concentrated and not dispersed, which may cause the steel trusses in multiple areas in a certain area to sink to varying degrees. Summary of the Invention

[0004] The purpose of the present invention is to provide a large-space prefabricated building structure, which can enable the upper and lower beam columns to still have a stable clamping function for the fractured steel plate body, has a certain remedial time limit, and is safer and more remedial compared with the external fixation method, reducing the occurrence of secondary injuries after the truss fracture. Moreover, it can make the connection between adjacent two steel trusses more connected. The column structure, steel frame structure, and force guiding structure form the entire force guiding system, dispersing the main tension force to the bottom truss, having the effect of load dispersion, enabling the steel frame structure to have stronger stability, and helping to solve the problem of sinking caused by uneven pressure of the steel truss.

[0005] The technical solution adopted by the present invention is specifically as follows:

[0006] A large-scale space prefabricated building structure includes column structures arranged in a row, a steel frame structure connected between the column structures to form a load-bearing main beam, and at least four groups of force guiding structures. The force guiding structures are wound between two of the steel frame structures. When the column structures are arranged in three groups, with the middle column structure as the main body, a tension structure is formed that pulls towards both sides.

[0007] The column structure includes beam columns, which are arranged vertically and fix the ends of the steel frame structure stably.

[0008] The steel frame structure consists of side trusses parallel to each other on both sides and a bottom truss at the bottom. Fixed steel members are fixed on both sides of the side trusses and the bottom truss. A steel plate body inserted into the interior of the beam column is installed on the side surface of the fixed steel member. The opposite surfaces of the two steel plate bodies are inclined away from each other.

[0009] The force guiding structure includes a steel wire rope. Taking one of the bottom trusses as a fixed point, the steel wire rope is wound towards another adjacent side truss. When it contacts the adjacent side truss, it bypasses the bottom truss downward and then winds around the side truss towards the initial fixed point and is fixed on the bottom truss.

[0010] Slots are opened on the opposite surfaces of the upper and lower beam columns. Tooth protrusions arranged in a row are provided at the inner bottom of the slots. Installation holes are opened on both opposite sides of the beam columns, and special bolts are threadedly connected to the installation holes.

[0011] A groove is opened at the end of the special bolt, and a spiral pressing block in a spiral shape is provided on the inner ring wall of the groove.

[0012] Bite grooves arranged at intervals are opened at both ends of the steel plate body to form bite teeth adapted to the tooth protrusions. The steel plate body is adaptively inserted into the interior of the slot, and fixing holes are opened in the steel plate body corresponding to the installation holes.

[0013] A protruding fixing boss is provided inside the fixing hole, and a thread spiral groove with a gradually narrowing groove depth is opened on the ring wall of the fixing boss.

[0014] There is a space between the inner wall of the fixing hole and the outer wall of the fixing boss, and one side surface of the fixing boss is smoothly cut, forming a space for the spiral pressing block to enter the thread spiral groove inside between it and the inner wall of the fixing hole.

[0015] The special bolt passes through the installation hole and is inserted into the interior of the fixing hole, constituting a fixing method perpendicular to the direction of the steel plate body coming out.

[0016] The force guiding structure further includes a fixing group and a winding group.

[0017] The fixed group includes a first fixed snap ring, which is fixedly sleeved on the cross bar of the bottom truss. The end of the steel wire rope is fixed to the first fixed snap ring, and a collar is fixed to the other end of the steel wire rope. The collar is sleeved on the "X" steel sleeper of the bottom truss to form a main tension structure.

[0018] The end of the steel wire rope is divided into two strands and extends out of the collar, and both are fixedly connected with second fixed snap rings, which are fixed on both sides of the first fixed snap ring to form a secondary tension structure.

[0019] The winding group includes movable snap rings that are snap-connected to the side truss and the cross bar of the bottom truss. The movable snap rings are semi-circular, and the two ends of the bottom of the movable snap rings are inwardly retracted. A card slot for clamping the steel wire rope is also provided on the movable snap rings.

[0020] The second fixed snap ring is also set to be semi-circular. The difference is that the end plate of one end of the second fixed snap ring is set as a narrow-edge clamping strip, which is fixedly clamped inside the end plate of the other end of the second fixed snap ring.

[0021] The first fixed snap ring and the second fixed snap ring have the same structure.

[0022] The technical effects achieved by the present invention are as follows:

[0023] In the present invention, the bite grooves on the steel plate body are adapted and bite-connected with the tooth protrusions, which increases the connection relationship between the steel plate body and the beam-column. At the same time, the way of inserting and connecting the steel plate body with the steel frame structure makes the connection nodes between the steel plate body and the steel frame structure receive less force and reduces the factors that may cause its deformation. And when one side or both sides of the truss are overloaded and fractured, the fractured truss will drive the steel plate body located inside the groove to tilt towards one side. However, in the way of inserting the steel plate body, its end is still inside the groove, and the inner wall of the groove or the steel plate body on the other unfractured truss has a certain tendency to prevent its further tilting, so that the beam-columns at the upper and lower ends still have a stable clamping function for the fractured steel plate body, with a certain remedial time limit. Compared with the external fixation method, it is more secure and remedial, and reduces the occurrence of secondary injuries after the truss fracture.

[0024] In the present invention, on the basis of arranging multiple groups of column structures and multiple groups of steel frame structures to form a steel mesh box structure, multiple groups of arranged steel wire ropes form a component force structure of grid tension, which distributes the load forces on multiple groups of column structures more evenly to each steel frame structure and column structure, making the connection between adjacent two steel trusses more connected. The column structure, the steel frame structure and the force guiding structure form the entire force guiding system, which is composed of steel wire ropes with tension and steel trusses with rigidity. Under the action of a certain stress, a space structure with self-stress balance having a certain resistance and stability is formed. Even for large-space and large-span components, it has strong bearing capacity.

[0025] In the present invention, a collar is sleeved on the "X" steel sleeper of the bottom truss to form a main tension structure, which conducts the main load force to the bottom truss. And a second fixing clamp is fixed on both sides of the first fixing clamp to form a secondary tension structure, which further disperses the main tension force to the bottom truss, having the effect of load dispersion and enabling the steel frame structure to have stronger stability, which helps to solve the problem of sinking caused by uneven pressure on the steel truss. Brief Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of the present invention;

[0027] Figure 2 is the overall structural schematic diagram of the column structure and the steel frame structure in the present invention;

[0028] Figure 3 is the separated structural schematic diagram of the column structure and the steel frame structure in the present invention;

[0029] Figure 4 is in the present invention Figure 3 is the sectional structural schematic diagram at A-A in the present invention;

[0030] Figure 5 is the half-sectional structural schematic diagram of the special bolt in the present invention;

[0031] Figure 6 is the structural schematic diagram of the steel frame structure in the present invention;

[0032] Figure 7 is the structural schematic diagram of the fixing steel part and the steel plate body in the present invention;

[0033] Figure 8 is the structural schematic diagram of the fixing steel part and the steel plate body from another perspective in the present invention;

[0034] Figure 9 is the structural schematic diagram of the fixing boss in the present invention;

[0035] Figure 10 is the structural schematic diagram of the force guiding structure in the present invention;

[0036] Figure 11 is the structural schematic diagram of the force guiding structure from another perspective in the present invention;

[0037] Figure 12 is the structural schematic diagram of the steel wire rope, the fixing group and the winding group in the present invention;

[0038] Figure 13 is the partial structural schematic diagram of the steel frame structure and the force guiding structure in the present invention;

[0039] Figure 14 is in the present inventionFigure 12 A schematic diagram of the enlarged structure of the detail at B;

[0040] Figure 15 It is a schematic diagram of the structure of the fixed group in the present invention;

[0041] Figure 16 It is a structural schematic diagram of the sleeve ring and the second fixed clamp ring in the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0043] 100, column structure; 101, beam column; 102, slot; 103, tooth protrusion; 104, mounting hole; 105, special bolt; 106, groove; 107, spiral pressing block;

[0044] 200, steel frame structure; 201, side truss; 202, bottom truss; 203, fixed steel parts; 204, steel plate body; 206, bite groove; 207, fixing hole; 208, fixing boss; 209, threaded groove;

[0045] 300, force-guiding structure; 301, steel wire rope; 302, fixing group; 303, first fixing clamp ring; 304, sleeve ring; 305, second fixing clamp ring; 3051, narrow edge clamp strip; 306, winding group; 307, movable clamp ring. DETAILED DESCRIPTION

[0046] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0047] like Figure 1-2 As shown, a large-scale spatial prefabricated building structure includes arranged column structures 100, steel frame structures 200 connected between the column structures 100 to form a load-bearing main beam, and at least four groups of force-guiding structures 300. The force-guiding structures 300 are connected around two steel frame structures 200. When the column structures 100 are arranged in three groups, the middle column structure 100 is the main one, forming a tension structure pulling to both sides.

[0048] Among them, multiple groups of column structures 100 and multiple groups of steel frame structures 200 are arranged to form a "冂"-shaped steel mesh box structure, which has basic vertical load capacity.

[0049] See attached Figure 3-4, the column structure 100 includes beam columns 101, which are arranged vertically and hold the ends of the stable steel frame structure 200. Slots 102 are provided on the opposite surfaces of the upper and lower beam columns 101, and protruding teeth 103 are arranged at the inner bottom of the slots 102. Mounting holes 104 are provided on the opposite sides of the beam columns 101, and special bolts 105 are threadedly connected to the mounting holes 104.

[0050] Refer to the appendix Figure 5 , the end of the special bolt 105 is provided with a groove 106, and a spiral pressing block 107 is arranged on the inner ring wall of the groove 106.

[0051] Among them, the thread on the special bolt 105 is consistent with the spiral diameter of the spiral pressing block 107. When the special bolt 105 rotates one week and is screwed into the inside of the mounting hole 104, the advancing depth of the spiral pressing block 107 is the same as that of the special bolt 105.

[0052] Refer to the appendix Figure 6 , the steel frame structure 200 is composed of side trusses 201 parallel to both sides and a bottom truss 202 at the bottom. Fixed steel parts 203 are fixed on both sides of the side trusses 201 and the bottom truss 202. A steel plate body 204 inserted into the inside of the beam column 101 is installed on the side surface of the fixed steel part 203. The opposite surfaces of the two steel plate bodies 204 are inclined away from each other.

[0053] Refer to the appendix Figure 7-8 , the two ends of the steel plate body 204 are provided with spaced bite grooves 206 to form bite teeth adapted to the teeth 103. The steel plate body 204 is adaptively inserted into the inside of the slot 102, and the steel plate body 204 is provided with fixing holes 207 corresponding to the mounting holes 104.

[0054] Furthermore, the bite grooves 206 on the steel plate body 204 are bite-connected with the teeth 103, which increases the connection relationship between the steel plate body 204 and the beam column 101. At the same time, the way the steel plate body 204 is inserted and connected to the steel frame structure 200 makes the connection nodes between the steel plate body 204 and the steel frame structure 200 receive less force and reduces the factors that may cause its deformation. And when one or both sides of the truss are under excessive pressure and break, the broken truss will drive the steel plate body 204 located inside the groove 106 to tilt towards one side. However, in the way the steel plate body 204 is inserted, its end is still inside the groove 106, and the inner wall of the groove 106 or the steel plate body 204 on the other unbroken truss has a certain tendency to prevent its further tilt, so that the upper and lower beam columns 101 still have a stable clamping function for the broken steel plate body 204, with a certain remedial time limit. Compared with the external fixation method, it is more secure and remedial, and reduces the occurrence of secondary injuries after the truss breaks.

[0055] Refer to the appendix Figure 8-9A protruding fixing boss 208 is provided inside the fixing hole 207, and a gradually narrowing thread groove 209 is provided on the annular wall of the fixing boss 208;

[0056] There is a gap between the inner wall of the fixing hole 207 and the outer wall of the fixing boss 208 , and one side of the fixing boss 208 is smoothly cut to form a space between it and the inner wall of the fixing hole 207 for the spiral pressing block 107 to enter the inside of the thread groove 209 .

[0057] Furthermore, after the special bolt 105 is rotated a fixed number of times, the spiral pressing block 107 on the special bolt 105 corresponds to the smooth cut of one side of the fixing boss 208, and then continues to rotate into the interior of the thread groove 209. As the groove depth of the thread groove 209 gradually narrows, the special bolt 105 continues to rotate until the spiral pressing block 107 is close to the bottom of the fixing hole 207. Due to the limitation of the spiral groove wall of the thread groove 209, it is not easily affected by axial vibration, and thus the special bolt 105 is not easy to fall out when the connection with the mounting hole 104 is unstable due to vibration, thereby ensuring the connection reliability between the beam column 101 and the steel frame structure 200 and stabilizing the force transmission load between the steel trusses.

[0058] Furthermore, the special bolt 105 passes through the installation hole 104 and is inserted into the inside of the fixing hole 207, forming a fixing method perpendicular to the disengagement direction of the steel plate body 204. The installation method of the special bolt 105 perpendicular to the disengagement direction of the steel plate body 204 can further strengthen the connection relationship between the beam column 101 and the steel frame structure 200. Except for the rigid bending damage of the special bolt 105, the two are difficult to separate and fall off.

[0059] See attached Figure 10-11 The force-conducting structure 300 includes a steel wire rope 301, which is fixed at one of the bottom trusses 202 and is wound toward another adjacent side truss 201. When the steel wire rope 301 contacts the adjacent side truss 201, it goes around the bottom truss 202 downward, and then goes around the side truss 201 toward the initial fixed point and is fixed on the bottom truss 202.

[0060] According to the above structure, on the basis of arranging multiple groups of column structures 100 and multiple groups of steel frame structures 200 to form a steel grid box structure, multiple groups of steel wire ropes 301 are arranged to form a grid tensioning force distribution structure, so that the load force on the multiple groups of column structures 100 is more evenly distributed to each steel frame structure 200 and the column structure 100, so that the two adjacent steel trusses are more connected. The column structure 100, the steel frame structure 200 and the force-conducting structure 300 form the entire force-conducting system, which is composed of the steel wire ropes 301 with tension and the steel trusses with rigidity. Under the action of certain stress, a self-stress balanced spatial structure with certain resistance and stability is formed, and even if a large space and a large span are assembled, it has a strong pressure-bearing capacity.

[0061] Referring to the attached Figure 11-12 , the guiding force structure 300 further includes a fixing group 302 and a winding group 306;

[0062] Referring to the attached Figure 13 , the fixing group 302 includes a first fixing snap ring 303 which is fixedly sleeved on the cross bar of the bottom truss 202. The end of the steel wire rope 301 is fixed to the first fixing snap ring 303. A collar 304 is fixed to the other end of the steel wire rope 301. The collar 304 is sleeved on the "X" steel sleeper of the bottom truss 202 to form a main tension structure. The end of the steel wire rope 301 is divided into two strands and extends out of the collar 304, and both are fixedly connected with second fixing snap rings 305. The second fixing snap rings 305 are fixed on both sides of the first fixing snap ring 303 to form a secondary tension structure.

[0063] Furthermore, the main tension structure formed by the collar 304 sleeved on the "X" steel sleeper of the bottom truss 202 conducts the main load force to the bottom truss 202. And the secondary tension structure formed by the second fixing snap rings 305 fixed on both sides of the first fixing snap ring 303 further disperses the main tension force to the bottom truss 202, having the effect of load dispersion, enabling the steel frame structure 200 to have stronger stability and helping to solve the problem of sinking caused by uneven pressure on the steel truss.

[0064] Referring to the attached Figure 14 , the winding group 306 includes a movable snap ring 307 which is snap-connected to the side truss 201 and the cross bar of the bottom truss 202. The movable snap ring 307 is semi-circular, and the two ends of the bottom of the movable snap ring 307 are inwardly retracted. A card slot for clamping the steel wire rope 301 is also opened on the movable snap ring 307.

[0065] Referring to the attached Figure 15-16 , the second fixing snap ring 305 is also set to be semi-circular. The difference is that the end plate of one end of the second fixing snap ring 305 is set as a narrow-edge card strip 3051, which is fixedly snap-connected inside the end plate of the other end of the second fixing snap ring 305. The first fixing snap ring 303 and the second fixing snap ring 305 have the same structure.

[0066] Furthermore, by setting the first fixing snap ring 303 and the second fixing snap ring 305, the problem that the steel wire rope 301 runs off when the force is too large, resulting in inconsistent dispersion axes of its tension, can be avoided.

[0067] The working principle of the present invention is as follows: In this application, the column structure 100 and the steel frame structure 200 are connected by an internal plug-in node method, so that the connection node between the steel plate body 204 and the steel frame structure 200 is less stressed and the factors that may cause its deformation are reduced. And when one or both sides of the truss are overloaded and break, the broken truss will drive the steel plate body 204 located inside the groove 106 to tilt towards one side. In the internal plug-in method of the steel plate body 204, its end is still inside the groove 106, and the inner wall of the groove 106 or the steel plate body 204 on the other unbroken truss has a tendency to prevent its further tilt, so that the upper and lower beam columns 101 still have a stable clamping function on the broken steel plate body 204, with a certain remedial time limit. Compared with the external fixation method, it is more secure and remedial, reducing the occurrence of secondary injuries after the truss breaks;

[0068] Moreover, on the basis of arranging multiple groups of column structures 100 and multiple groups of steel frame structures 200 to form a steel mesh box structure, multiple groups of wire ropes 301 arranged form a grid tensioning component force structure, which distributes the load forces on multiple groups of column structures 100 more evenly to each steel frame structure 200 and column structure 100, making the connection between adjacent two steel trusses more connected. The column structure 100, the steel frame structure 200 and the force guiding structure 300 form the entire force guiding system, which is composed of a wire rope 301 with tensile force and a steel truss with rigidity. Under the action of a certain stress, a self-stress balance space structure with a certain resistance and stability is formed. Even for large-space and large-span assemblies, it has strong load-bearing capacity.

[0069] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in this field.

Claims

1. A large-scale space prefabricated building structure, characterized in that, it includes column structures (100) arranged in a row; a steel frame structure (200) connected between the column structures (100), forming a load-bearing main beam; at least four groups of force guiding structures (300) are provided, and the force guiding structures (300) are wound around between the two steel frame structures (200). When the column structures (100) are arranged in three groups, with the middle column structure (100) as the main body, a tension structure that pulls towards both sides is formed; the column structure (100) includes beam columns (101), and the beam columns (101) are arranged up and down to firmly hold the ends of the steel frame structure (200); the steel frame structure (200) is composed of side trusses (201) parallel to both sides and a bottom truss (202) at the bottom. Fixed steel parts (203) are fixed on both sides of the side truss (201) and the bottom truss (202). A steel plate body (204) inserted into the interior of the beam column (101) is installed on the side surface of the fixed steel part (203). The opposite surfaces of the two steel plate bodies (204) are inclined away from each other; the force guiding structure (300) includes a steel wire rope (301). The steel wire rope (301) takes one of the bottom trusses (202) as a fixed point and is wound around towards another adjacent side truss (201). When it contacts the adjacent side truss (201), it bypasses the bottom truss (202) downward, and then bypasses the side truss (201) towards the initial fixed point and is fixed on the bottom truss (202).

2. A large-scale space prefabricated building structure according to claim 1, characterized in that: slots (102) are opened on the opposite surfaces of the upper and lower beam columns (101). Tooth protrusions (103) arranged in a row are provided at the inner bottom of the slots (102). Installation holes (104) are opened on the opposite sides of the beam column (101), and special bolts (105) are threadedly connected to the installation holes (104).

3. A large-scale space prefabricated building structure according to claim 2, characterized in that: a groove (106) is opened at the end of the special bolt (105), and a spiral pressing block (107) in a spiral shape is provided on the inner ring wall of the groove (106).

4. A large-scale space prefabricated building structure according to claim 3, characterized in that: spacing grooves (206) are opened at both ends of the steel plate body (204), forming bite teeth adapted to the tooth protrusions (103). The steel plate body (204) is adaptively inserted into the interior of the slot (102), and fixing holes (207) are opened in the steel plate body (204) corresponding to the installation holes (104).

5. A large-scale space prefabricated building structure according to claim 4, characterized in that: a protruding fixing boss (208) is provided inside the fixing hole (207), and a thread spiral groove (209) with a gradually narrowing groove depth is opened on the ring wall of the fixing boss (208); There is a distance between the inner wall of the fixing hole (207) and the outer wall of the fixing boss (208), and one side surface of the fixing boss (208) is smoothly cut, forming a space between the fixing boss and the inner wall of the fixing hole (207) for the spiral pressing block (107) to enter the interior of the screw thread groove (209).

6. A large-scale spatial prefabricated building structure according to claim 5, Features: The special bolt (105) passes through the mounting hole (104) and is inserted into the interior of the fixing hole (207), thereby forming a fixing method perpendicular to the direction in which the steel plate body (204) comes out.

7. A large-scale spatial prefabricated building structure according to claim 1, Features: The force-conducting structure (300) further comprises a fixing group (302) and a winding group (306); The fixing group (302) comprises a first fixing clamp (303), the first fixing clamp (303) being fixedly sleeved on the crossbar of the bottom truss (202), the end of the steel wire rope (301) being fixed to the first fixing clamp (303), the other end of the steel wire rope (301) being fixed with a sleeve (304), the sleeve (304) being sleeved on the "X" steel pillow of the bottom truss (202), forming a main force structure.

8. A large-scale spatial prefabricated building structure according to claim 7, Features: The end of the steel wire rope (301) is divided into two strands extending from the ring (304), and both strands are fixedly connected to a second fixed clamping ring (305). The second fixed clamping ring (305) is fixed on both sides of the first fixed clamping ring (303) to form a secondary tension structure.

9. A large-scale spatial prefabricated building structure according to claim 7, Features: The winding assembly (306) comprises a movable snap ring (307) which is clamped on the cross bars of the side trusses (201) and the bottom trusses (202); the movable snap ring (307) is semi-annular, and the two ends of the bottom of the movable snap ring (307) are inwardly arranged; the movable snap ring (307) is also provided with a clamping groove for clamping the steel wire rope (301).

10. A large-scale spatial prefabricated building structure according to claim 8, Features: The second fixing clamp ring (305) is also configured in a semi-ring shape, the difference being that the end plate at one end of the second fixing clamp ring (305) is configured as a narrow-edge clamp strip (3051), which is fixedly clamped inside the end plate at the other end of the second fixing clamp ring (305); The first fixing clamp ring (303) and the second fixing clamp ring (305) have the same structure.

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