Prefabricated Steel Structure Frame Lapping Piece and Its Lapping Method

Abstract

The present invention discloses a prefabricated steel structure frame lap joint, which includes a column, a column sleeve, a column sleeve stabilizing frame, a bottom ring beam, a beam bracket, a ring beam, a support stabilizing structure and a base. The lower end of the column is vertically sleeved in the base, and its upper end is sequentially connected to the lower end of another vertically arranged column through the column sleeve stabilizing frame and the column sleeve. The base is fixed to the foundation embedded part. A bottom ring beam can be installed between adjacent bases, and a beam bracket and a ring beam are connected between adjacent column sleeves. The support stabilizing structure is installed between the beam bracket and the column sleeve stabilizing frame. The prefabricated steel structure frame lap joint designed by the present invention greatly reduces the complexity of construction. For construction workers, only short-term training is required to master the lapping method, which improves the construction efficiency, avoids the problems of wasting building materials, polluting the environment and wasting resources. The assembly is time-saving and labor-saving, saving a large amount of manpower and material resources, with high efficiency, and can meet the needs of multi-storey building construction, and has strong versatility.

Description

Technical Field

[0001] The present invention relates to the field of construction, and in particular to a prefabricated steel structure frame lap joint and a lap joint method thereof. Background Art

[0002] The disadvantages of the prefabricated frame structure in the prior art are as follows: 1. The construction is complex, highly dependent on the skills of on-site workers, and strict training is required for construction, resulting in low efficiency; 2. The construction method of the existing prefabricated column frame will cause waste of building materials, serious environmental pollution, and waste of resources; 3. The installation of the existing prefabricated column frame structure is complex, requiring on-site drilling, etc., which is time-consuming and laborious, wasting a large amount of manpower and material resources, and having low efficiency; 4. Post-installation trimming is still required, and it cannot meet the needs of multi-story building construction, with poor versatility; Therefore, how to design a prefabricated column frame structure and its assembly method with simple structure, fast assembly, improved construction efficiency and resource conservation is the technical problem to be solved by the present invention. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a prefabricated steel structure frame lap joint and a lap joint method thereof.

[0004] The technical solution provided by the present invention is: a prefabricated steel structure frame lap joint, including a column 1, a column sleeve 2, a column sleeve stabilizing frame 3, a bottom ring beam 4, a beam bracket 5, a ring beam 6, a support stabilizing structure 7 and a base 9. The lower end of the column 1 is vertically sleeved in the base 9, and its upper end is sequentially connected to the lower end of another vertically arranged column 1 through the column sleeve stabilizing frame 3 and the column sleeve 2. The base 9 is fixed to the foundation embedded part;

[0005] A bottom ring beam 4 can be installed between two adjacent bases 9, and a beam bracket 5 and a ring beam 6 are connected between two adjacent column sleeves; The support stabilizing structure 7 is installed between the beam bracket 5 and the column sleeve stabilizing frame 3.

[0006] As a preferred technical solution of the present invention, further:

[0007] For the aforementioned prefabricated steel structure frame lap joint, the column 1 is composed of a column skeleton 11 and two sealing plates 12 combined. The column skeleton 11 is composed of two symmetrically and parallelly arranged skeleton back plates 101 and a multi-curved structure located between the two skeleton back plates 101. The cross-sectional shape of the column skeleton 11 is a quasi-square. Two columns of fixing holes are symmetrically arranged on the skeleton back plate 101, which are 1 group of first fixing holes 1111, 4 groups of second fixing holes 111, at least 1 group of third fixing holes 110 and 2 groups of second fixing holes 111 from the upper end to the lower end respectively;

[0008] The cross-section of the sealing plate 12 is Shape, including two gusset side plates 124 formed by symmetrically bending the gusset back plate 123. When combined, the two gusset plates 12 are combined towards each other. The two gusset side plates 124 conform to the shape and fit on the frame back plate 101. At the positions corresponding to the fixing holes on the frame side plate 101 on the two gusset side plates 124, a row of fixing holes is provided from the upper end to the lower end, which are: 1 fourth fixing hole 1211 corresponding and matching with the first fixing hole 1111, 4 fifth fixing holes 121 corresponding and matching with the second fixing hole 111, sixth fixing holes 120 corresponding and matching with the number of the single-row third fixing holes 110, and 2 fifth fixing holes 121 corresponding and matching with the second fixing hole 111.

[0009] For the aforementioned prefabricated steel structure frame lap joint, the base 9 includes a base sleeve 91. The inner cavity of the base sleeve 91 conforms to the shape of the column, and its lower end is fixed on the foundation floor slab 92. The foundation floor slab 92 is fixed to the foundation embedded part through the foundation floor slab fixing holes 920.

[0010] On the side wall of the base sleeve 91, 4 twelfth fixing holes 910 are provided, and the twelfth fixing holes 910 correspond and match with 2 groups of second fixing holes 111 at the lower end of the frame back plate 101. A bottom ring beam frame 911 can be welded on the side wall of the base sleeve 91. The bottom ring beam frame 911 is In the shape of, including 2 bottom ring beam frame side plates 921 and 1 bottom ring beam frame bottom plate 924. On the bottom ring beam frame side plates 921, thirteenth fixing holes 9210 corresponding and matching with the bottom ring beam fixing holes 410 are provided.

[0011] For the aforementioned prefabricated steel structure frame lap joint, the column sleeve stabilizing frame 3 includes a stabilizing frame sleeve 31. The inner cavity of the stabilizing frame sleeve 31 conforms to the shape of the column. Its upper edge is bent outward to form a horizontal frame upper edge fold 32. The frame upper edge fold 32 and the side of the stabilizing frame sleeve 31 are reinforced by a fold support 33. On each side of the stabilizing frame sleeve 31, 4 groups of eleventh fixing holes 310 corresponding and matching with the second fixing holes 111 are provided.

[0012] For the aforementioned prefabricated steel structure frame lap joint, the column sleeve 2 includes a column sleeve body 21. The inner cavity of the column sleeve body 21 conforms to the shape of the column. A frame 22 can be welded on its side. The frame 22 is in the shape of Installed, composed of two side plates and a bottom plate 223. The side plates are divided into an upper side plate 221 and a lower side plate 222. On the upper side plate 221, ninth fixing holes 2210 corresponding and matching with the ring beam lap joint fixing holes 610 are provided. On the lower side plate 222, tenth fixing holes 2220 corresponding and matching with the beam bracket fixing holes 510 are provided. On the side of the column sleeve body 21, 2 eighth fixing holes 2101 corresponding and matching with the first fixing hole 1111 and 4 seventh fixing holes 210 corresponding and matching with the second fixing hole 111 are provided from the bottom to the top.

[0013] For the aforementioned prefabricated steel structure frame lap joint, bottom ring beam side plates 41 are installed on the two side surfaces at both ends of the bottom ring beam 4, and bottom ring beam fixing holes 410 are provided on the bottom ring beam side plates 41.

[0014] For the aforementioned prefabricated steel structure frame lap joint, beam brackets 51 are welded to both ends of the beam bracket 5, and the beam bracket lap joint 51 is in a shape and beam bracket fixing holes 510 are provided on both of its two side edges.

[0015] For the aforementioned prefabricated steel structure frame lap joint, ring beam lap joints 61 are also welded to both ends of the ring beam 6, and the ring beam lap joint 61 is in a shape and ring beam lap joint fixing holes 610 are provided on both of its two side edges.

[0016] For the aforementioned prefabricated steel structure frame lap joint, the support and stability structure 7 includes a vertical support plate 71 and a horizontal support plate 72 that are perpendicular to each other. The vertical support plate 71 and the horizontal support plate 72 are connected by first and second support plates (73, 74), and a stability support plate 75 is further provided between the second support plate 74 and the horizontal support plate 72;

[0017] At least one group of support fixing holes 520 are also provided on the upper and lower side surfaces of the beam bracket 5. The horizontal support plate 72 is provided with fifteenth fixing holes corresponding to and matching the support fixing holes 520, and the vertical support plate 71 is provided with fourteenth fixing holes 3100 corresponding to and matching three groups of eleventh fixing holes 310 on the upper and lower sides of the side of the stable frame sleeve 31.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. By using the prefabricated steel structure frame lap joint designed by the present invention, the complexity of construction is greatly reduced. For construction workers, they only need to receive short-term training to master the lapping method, thereby improving construction efficiency;

[0020] 2. The prefabricated steel structure frame lap joint designed by the present invention avoids the problems of wasting building materials, polluting the environment and wasting resources;

[0021] 3. The prefabricated steel structure frame lap joint designed by the present invention is time-saving and labor-saving in assembly, saves a large amount of manpower and material resources, and has high efficiency;

[0022] 4. The prefabricated steel structure frame lap joint designed by the present invention does not require post-assembly trimming, can meet the construction needs of multi-story buildings, and has strong versatility. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of a column skeleton and a sealing plate in the present invention;

[0024] Figure 2 It is a schematic structural diagram of the whole column in the present invention;

[0025] Figure 3 This is a schematic structural view of the column sleeve in the present invention;

[0026] Figure 4 This is a schematic structural view of the base in the present invention;

[0027] Figure 5 This is a schematic structural view of the bottom ring beam, beam bracket and ring beam in the present invention;

[0028] Figure 6 This is a schematic structural view of the column sleeve stabilizing frame;

[0029] Figure 7 This is a schematic structural view of the single-layer assembly double-layer;

[0030] Figure 8 This is a schematic structural view of the double-layer prefabricated column frame;

[0031] Figure 9 This is a schematic view of the assembled support stabilizing structure;

[0032] Among them, 1 - column, 2 - column sleeve, 3 - column sleeve stabilizing frame, 11 - column skeleton, 12 - sealing plate, 101 - skeleton back plate, 1111 - first fixing hole, 111 - second fixing hole, 110 - third fixing hole, 123 - sealing plate back plate, 124 - sealing plate side plate, 1211 - fourth fixing hole, 121 - fifth fixing hole, 120 - sixth fixing hole, 4 - bottom ring beam, 41 - bottom ring beam side plate, 410 - bottom ring beam fixing hole, 5 - beam bracket, 51 - beam bracket overlapping part, 510 - beam bracket fixing hole, 520 - support fixing hole, 6 - ring beam, 61 - ring beam overlapping part, 610 - ring beam overlapping part fixing hole, 9 - base, 91 - base sleeve body, 92 - foundation floor slab, 920 - foundation floor slab fixing hole, 910 - twelfth fixing hole, 911 - bottom ring beam frame, 921 - bottom ring beam frame side plate, 924 - bottom ring beam frame floor slab, 9210 - thirteenth fixing hole, 31 - stabilizing frame sleeve body, 32 - upper end flange of the frame, 33 - flange support, 310 - eleventh fixing hole, 21 - column sleeve body, 22 - frame, 223 - floor slab, 221 - upper side plate, 222 - lower side plate, 2210 - ninth fixing hole, 2220 - tenth fixing hole, 2101 - eighth fixing hole, 210 - seventh fixing hole, 71 - vertical support plate, 72 - horizontal support plate, 73 - first support plate, 74 - second support plate, 75 - stabilizing support plate, 3100 - fourteenth fixing hole, 13 - reinforcing iron block, 14 - convex block, 112 - first spare hole, 140 - second spare hole, 227 - third spare hole, 927 - fourth spare hole. Detailed implementation manners

[0033] Embodiment 1

[0034] As Figures 7 - 9 shown, this embodiment provides an assembled steel structure frame lap joint, which includes a column 1, a column sleeve 2, a column sleeve stabilizing frame 3, a bottom ring beam 4, a beam bracket 5, a ring beam 6, a support stabilizing structure 7 and a base 9. The lower end of the column 1 is vertically sleeved in the base 9, and its upper end is sequentially connected to the lower end of another vertically arranged column 1 through the column sleeve stabilizing frame 3 and the column sleeve 2. The base 9 is fixed to the foundation embedded part;

[0035] A bottom ring beam 4 can be installed between two adjacent bases 9, and a beam bracket 5 and a ring beam 6 are connected between two adjacent column sleeves; The support stabilizing structure 7 is installed between the beam bracket 5 and the column sleeve stabilizing frame 3; The column 1 in this application can select the column structure involved in all applications owned by Mao Jinsheng, and will not be specifically described here.

[0036] Embodiment 2

[0037] As Figures 1 - 9 shown, the column 1 is composed of a column skeleton 11 and two sealing plates 12 combined. The column skeleton 11 is composed of two symmetrically and parallelly arranged skeleton back plates 101 and a multi-curved structure located between the two skeleton back plates 101. The cross-sectional shape of the column skeleton 11 is a quasi-square. Two columns of fixing holes are symmetrically arranged on the skeleton back plate 101, which are 1 group of first fixing holes 1111, 4 groups of second fixing holes 111, at least 1 group of third fixing holes 110 and 2 groups of second fixing holes 111 from the upper end to the lower end respectively;

[0038] The cross-section of the sealing plate 12 is shaped, including a sealing plate back plate 123 and two sealing plate side plates 124 formed by symmetrically bending. When combined, the two sealing plates 12 are combined face to face. The two sealing plate side plates 124 are conformally attached to the skeleton back plate 101, and at the positions corresponding to the fixing holes on the skeleton side plate 101 on the two sealing plate side plates 124, a column of fixing holes is arranged from the upper end to the lower end, which are: 1 fourth fixing hole 1211 corresponding and matching with the first fixing hole 1111, 4 fifth fixing holes 121 corresponding and matching with the second fixing hole 111, sixth fixing holes 120 corresponding and matching with the number of the single-column third fixing holes 110 and 2 fifth fixing holes 121 corresponding and matching with the second fixing hole 111.

[0039] For the aforementioned assembled steel structure frame lap joint, the base 9 includes a base sleeve body 91. The inner cavity of the base sleeve body 91 conforms to the shape of the column, and its lower end is fixed on the foundation bottom plate 92. The foundation bottom plate 92 is fixed to the foundation embedded part through foundation bottom plate fixing holes 920;

[0040] On the side walls of the base sleeve body 91, 4 twelfth fixing holes 910 are provided, and the twelfth fixing holes 910 correspond and match with 2 groups of second fixing holes 111 at the lower end of the skeleton backboard 101. The side walls of the base sleeve body 91 can be welded with a bottom ring beam frame 911, and the bottom ring beam frame 911 is in a shape, including 2 bottom ring beam frame side plates 921 and 1 bottom ring beam frame bottom plate 924. On the bottom ring beam frame side plates 921, thirteenth fixing holes 9210 corresponding and matching with the bottom ring beam fixing holes 410 are provided.

[0041] For the aforesaid assembled steel structure frame overlapping part, the column sleeve stabilizing frame 3 includes a stabilizing frame sleeve body 31. The inner cavity of the stabilizing frame sleeve body 31 conforms to the column. Its upper edges all bend outwards to form horizontal frame upper edge flanges 32. Between the frame upper edge flanges 32 and the side edges of the stabilizing frame sleeve body 31, they are reinforced by flange supports 33. On each side edge of the stabilizing frame sleeve body 31, 4 groups of eleventh fixing holes 310 corresponding and matching with the second fixing holes 111 are provided.

[0042] For the aforesaid assembled steel structure frame overlapping part, the column sleeve 2 includes a column sleeve body 21. The inner cavity of the column sleeve body 21 conforms to the column. A frame 22 can be welded on its side edge. The frame 22 is in a shape, composed of two side plates and a bottom plate 223. The side plates are divided into an upper side plate 221 and a lower side plate 222. On the upper side plate 221, ninth fixing holes 2210 corresponding and matching with the ring beam overlapping part fixing holes 610 are provided. On the lower side plate 222, tenth fixing holes 2220 corresponding and matching with the beam support fixing holes 510 are provided. On the side edge of the column sleeve body 21, 2 eighth fixing holes 2101 corresponding and matching with the first fixing holes 1111 are provided from bottom to top and 4 seventh fixing holes 210 corresponding and matching with the second fixing holes 111.

[0043] For the aforesaid assembled steel structure frame overlapping part, on the two end side surfaces of the bottom ring beam 4, bottom ring beam side plates 41 are installed, and bottom ring beam fixing holes 410 are provided on the bottom ring beam side plates 41.

[0044] For the aforesaid assembled steel structure frame overlapping part, beam support lap joints 51 are welded at both ends of the beam support 5. The beam support lap joints 51 are in a shape and beam support fixing holes 510 are provided on its two side edges.

[0045] For the aforesaid assembled steel structure frame overlapping part, ring beam lap joints 61 are also welded at both ends of the ring beam 6. The ring beam lap joints 61 are in a shape and ring beam lap joint fixing holes 610 are provided on its two side edges.

[0046] The aforesaid assembled steel structure frame lap joint, and the support and stability structure 7 includes a vertical support plate 71 and a horizontal support plate 72 that are perpendicular to each other. The vertical support plate 71 and the horizontal support plate 72 are connected by first and second support plates 73, 74, and a stabilizing support plate 75 is further arranged between the second support plate 74 and the horizontal support plate 72;

[0047] At least one set of support fixing holes 520 are also formed on the upper and lower side surfaces of the beam bracket 5. The horizontal support plate 72 is provided with a fifteenth fixing hole corresponding to and matching the support fixing holes 520, and the vertical support plate 71 is provided with a fourteenth fixing hole 3100 corresponding to and matching three groups of eleventh fixing holes 310 on the upper and lower sides of the side of the stabilizing frame sleeve 31.

[0048] Embodiment 3

[0049] As a specific lapping method of the present invention, bottom ring beam frames 911 are installed on two adjacent side walls of the base sleeve 91 to serve as a 9-2A type base, bottom ring beam frames 911 are installed on two opposite side walls of the base sleeve 91 to serve as a 9-2B type base, bottom ring beam frames 911 are installed on three side walls of the base sleeve 91 to serve as a 9-3 type base, bottom ring beam frames 911 are installed on four side walls of the base sleeve 91 to serve as a 9-4 type base, and bottom ring beam frames 911 are installed on one side wall of the base sleeve 91 to serve as a 9-1 type base;

[0050] Frames 22 are welded on two adjacent sides of the column sleeve 21 to serve as a 2-2A type column sleeve, frames 22 are welded on two opposite sides of the column sleeve 21 to serve as a 2-2B type column sleeve, frames 22 are welded on three sides of the column sleeve 21 to serve as a 2-3 type column sleeve, frames 22 are welded on four sides of the column sleeve 21 to serve as a 2-4 type column sleeve, and frames 22 are welded on one side of the column sleeve 21 to serve as a 2-1 type column sleeve;

[0051] The specific steps of this lapping method are as follows:

[0052] 1. The base 9 is placed horizontally and fixed to the foundation embedded part through the foundation base plate 92 via the foundation base plate fixing holes 920; the lower end of the assembled column 1 is inserted into the base sleeve 91, and the twelfth fixing hole 910 corresponds to and matches two groups of second fixing holes 111 at the lower end of the skeleton back plate 101, and is fixed by bolts;

[0053] 2. Sheath the column sleeve stabilizing frame 3 on the upper end of the column 1. The 4 groups of second fixing holes 111 at the upper end of the skeleton backboard 101 correspond and coincide with the eleventh fixing holes 310. Sheath the column sleeve 2 on the top of the column 1 and limit it by the upper-end flanging 32 of the frame. At the same time, the eighth fixing hole 2101 on the side of the column sleeve body 21 corresponds and coincides with the first fixing hole 1111 at the uppermost part of the skeleton backboard 101; Insert the lower end of another vertically arranged column 1 into the column sleeve body 21. The 2 groups of second fixing holes 111 at the lower end of the skeleton backboard 101 correspond and coincide with the seventh fixing hole 210 on the side of the column sleeve body 21;

[0054] 3. Horizontally lap the bottom ring beam 4 between adjacent bases 9. The bottom ring beam fixing hole 410 corresponds and coincides with the thirteenth fixing hole 9210 opened on the bottom ring beam frame side plate 921;

[0055] 4. Between adjacent column sleeves 2, horizontally lap the beam bracket 5 and the ring beam 6. The beam bracket 5 is below and the ring beam 6 is above. The beam bracket fixing hole 510 corresponds and coincides with the tenth fixing hole 2220 on the lower side plate 222. The ring beam lap joint fixing hole 610 corresponds and coincides with the ninth fixing hole 2210 on the upper side plate 221. Fix the holes with bolts;

[0056] 5. Install the support stabilizing structure 7 between the beam bracket 5 and the column sleeve stabilizing frame 3. The fifteenth fixing hole opened on the horizontal support plate 72 corresponds and coincides with the support fixing hole 520. The fourteenth fixing hole 3100 on the vertical support plate 71 corresponds and coincides with 3 groups of eleventh fixing holes 310 above and below the side of the stabilizing frame sleeve body 31. Fix the holes with bolts;

[0057] According to the above lapping method, the prefabricated steel structure frame can be extended and lapped on the horizontal and vertical planes by combining bases and column sleeves of various models, which will not be elaborated here.

[0058] Example 4

[0059] In this embodiment, since the structure between the two skeleton backplates 101 is a multi-curved structure, in order to ensure the strength of the column skeleton 11, we install reinforcing iron blocks 13 at all internal points of the holes opened in the column skeleton 11. Since the cross-sectional shape of the column skeleton 11 is approximately square, corresponding holes are also opened on the other two sides of the column skeleton 11 except for the skeleton backplates 101, and the opening positions correspond to those on the skeleton backplates 101. If the opening position happens to be at the gap of the multi-curved structure, a reinforcing iron block 13 is installed at this position and corresponding through holes are opened on the reinforcing iron block 13. At the same time, the width of the sealing plate backplate 123 is the same as that of the skeleton backplate 101, and corresponding holes are also opened at the positions corresponding to the holes on the skeleton backplate 101, so as to be stably fitted with the hole positions on the two sides of the column skeleton 11; it also includes a convex block 14 that can be inserted into the column skeleton 11 from the top. A second spare hole 140 is opened on the convex block 14 to facilitate the hoisting operation of the column 1. The uppermost and lowermost ends of the skeleton backplate 101 are also respectively provided with first spare holes 112.

[0060] Embodiment 5

[0061] The upper edges of the upper side plate 221 and the lower side plate 222 are both bent structures, and third spare holes 227 are opened at the bent parts. The upper edge of the bottom ring beam frame side plate 921 is also a bent structure, and fourth spare holes 927 are opened at the bent parts.

[0062] The above embodiments are only used to illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention fall within the protection scope of the present invention.

Claims

1. An assembled steel structure frame lap joint, characterized in that, it includes a column (1), a column sleeve (2), a column sleeve stabilizing frame (3), a bottom ring beam (4), a beam bracket (5), a ring beam (6), a support stabilizing structure (7) and a base (9). The lower end of the column (1) is vertically sleeved in the base (9), and its upper end is sequentially connected to the lower end of another vertically arranged column (1) through the column sleeve stabilizing frame (3) and the column sleeve (2). The base (9) is fixed to the foundation embedded part; A bottom ring beam (4) can be installed between two adjacent bases (9), and a beam bracket (5) and a ring beam (6) are connected between two adjacent column sleeves (2); the support stabilizing structure (7) is installed between the beam bracket (5) and the column sleeve stabilizing frame (3); The column (1) is composed of a column skeleton (11) and two sealing plates (12) combined. The column skeleton (11) is composed of two symmetrically and parallelly arranged skeleton back plates (101) and a multi-curved structure located between the two skeleton back plates (101). The cross-sectional shape of the column skeleton (11) is a quasi-square. Two columns of fixing holes are symmetrically arranged on the skeleton back plate (101), which are 1 group of first fixing holes (1111), 4 groups of second fixing holes (111), at least 1 group of third fixing holes (110) and 2 groups of second fixing holes (111) from the upper end to the lower end respectively; Reinforcing iron blocks (13) are installed at all internal points of the holes opened in the column skeleton (11); The column sleeve stabilizing frame (3) includes a stabilizing frame sleeve body (31). The inner cavity of the stabilizing frame sleeve body (31) conforms to the column (1). Its upper edge is bent outward to form a horizontal upper frame edge fold (32). The upper frame edge fold (32) and the side of the stabilizing frame sleeve body (31) are reinforced by a fold support (33). Four groups of eleventh fixing holes (310) corresponding to the second fixing holes (111) are opened on each side of the stabilizing frame sleeve body (31); The support stabilizing structure (7) includes a vertical support plate (71) and a horizontal support plate (72) that are perpendicular to each other. The vertical support plate (71) and the horizontal support plate (72) are connected by first and second support plates (73, 74). A stabilizing support plate (75) is also arranged between the second support plate (74) and the horizontal support plate (72); At least 1 group of support fixing holes (520) are also opened on the upper and lower side surfaces of the beam bracket (5). The horizontal support plate (72) is provided with fifteenth fixing holes corresponding to the support fixing holes (520), and the vertical support plate (71) is provided with fourteenth fixing holes (3100) corresponding to three groups of eleventh fixing holes (310) above and below the side of the stabilizing frame sleeve body (31); 2. The assembled steel structure frame lap joint according to claim 1, characterized in that, The cross-section of the closing plate (12) is in the shape of, including a closing plate back panel (123) and two closing plate side panels (124) formed by symmetric bending. When combined, the two closing plates (12) are combined facing each other. The two closing plate side panels (124) are conformally attached to the frame back panel (101), and at the positions corresponding to the fixing holes on the frame back panel (101) on the two closing plate side panels (124), a column of fixing holes is provided from the upper end to the lower end, which are respectively: one fourth fixing hole (1211) corresponding and matching with the first fixing hole (1111), four fifth fixing holes (121) corresponding and matching with the second fixing hole (111), sixth fixing holes (120) corresponding and matching with the number of the single-row third fixing holes (110) and two fifth fixing holes (121) corresponding and matching with the second fixing hole (111); the base includes a base sleeve body (91). The inner cavity of the base sleeve body (91) conforms to the column (1). Its lower end is fixed on the foundation floor slab (92). The foundation floor slab (92) is fixed to the foundation embedded part through foundation floor slab fixing holes (920); Four 12th fixing holes (910) are provided on the side walls of the base sleeve body (91), and the 12th fixing holes (910) correspond to and match two groups of 2nd fixing holes (111) at the lower end of the skeleton back plate (101). A bottom ring beam frame (911) can be welded to the side wall of the base sleeve body (91), and the bottom ring beam frame (911) is shaped, including two bottom ring beam frame side plates (921) and one bottom ring beam frame bottom plate (924). 13th fixing holes (9210) corresponding to and matching the bottom ring beam fixing holes (410) are provided on the bottom ring beam frame side plates (921).

3. The prefabricated steel structure frame lap joint according to claim 2, characterized in that, The column sleeve (2) includes a column sleeve body (21). The inner cavity of the column sleeve body (21) conforms to the shape of the column, and a frame (22) can be welded to its side. The frame (22) is installed and is composed of two side plates and a bottom plate (223). The side plates are divided into an upper side plate (221) and a lower side plate (222). A ninth fixing hole (2210) corresponding to and matching the fixing hole (610) of the ring beam lap joint is provided on the upper side plate (221), and a tenth fixing hole (2220) corresponding to and matching the fixing hole (510) of the beam bracket is provided on the lower side plate (222). Two eighth fixing holes (2101) corresponding to and matching the first fixing hole (1111) and four seventh fixing holes (210) corresponding to and matching the second fixing hole (111) are provided on the side of the column sleeve body (21) from bottom to top.

4. The prefabricated steel structure frame lap joint according to claim 3, characterized in that, bottom ring beams (4) are provided with bottom ring beam side plates (41) on both side surfaces of the two ends, and bottom ring beam fixing holes (410) are formed in the bottom ring beam side plates (41).

5. The prefabricated steel structure frame lap joint according to claim 4, characterized in that, Both ends of the beam bracket (5) are welded with beam bracket lap joints (51), and the beam bracket lap joints (51) are shaped and are provided with beam bracket fixing holes (510) on both sides thereof.

6. The prefabricated steel structure frame lap joint according to claim 5, characterized in that, Both ends of the ring beam (6) are also welded with ring beam lap joints (61), and the ring beam lap joints (61) are shaped and are provided with ring beam lap joint fixing holes (610) on both of its side edges.

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