Quick splicing type steel structure beam column for fabricated building

Abstract

The invention relates to the technical field of building construction structures, and discloses a quickly-spliced steel structure beam column for a fabricated building, which comprises a steel structure column, a steel structure beam and a splicing part, and the splicing part comprises a welding group assembled on the outer wall of the steel structure column in advance; the welding set comprises a side plate for limiting the side edge of the steel structure beam and a bearing plate for supporting the bottom end of the steel structure beam, and the bottom end of the bearing plate is detachably connected with a supporting set for comprehensively supporting the bottom end of the steel structure beam. The supporting plate and the bearing plate are arranged, the steel structure beam is in a stable state after being placed on the supporting plate and the bearing plate, workers can more conveniently conduct alignment of side bolt holes and penetrating operation of side bolts, and compared with shaking of the steel structure beam in a hoisting state, the mounting efficiency can be improved, and the labor intensity of workers is lowered. Hole position deviation caused by shaking of the steel structure beam is avoided, installation difficulty and time waste caused by dislocation are reduced, and the efficiency and accuracy of side bolt installation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction structures, and in particular to a quick-joined steel structure beam column for assembled buildings. Background Art

[0002] Steel structure beams and columns are commonly used load-bearing components in construction and engineering, mainly used to support and transfer loads. The factory's processing equipment and site space have certain limitations, and it is impossible to process beams and columns that are too long or too large in size at one time. By dividing the beams and columns into appropriate sections for processing, the spliced ​​steel structure beams and columns are more convenient for on-site installation operations, and the requirements for lifting equipment for segmented components during hoisting are relatively low, which reduces the difficulty and risk of hoisting, and can also reduce the occupation of construction site space, facilitating construction organization and management.

[0003] However, in the existing process of splicing steel structure beams and columns of prefabricated buildings, when the beams are positioned to the specified position and maintained in the hoisting state by using lifting equipment, and then the bolt connection or welding operation of the steel structure beams and columns and their connecting components is implemented, due to the external force disturbance applied by the workers to the steel structure beams and columns during the welding process, and the friction between the lifting structure and the steel structure beams is in the critical static friction state or is less than the shear force generated by the external force disturbance, it is impossible to provide a restraining reaction force sufficient to counteract it, causing the steel structure beams to produce displacement deviations relative to the initial positioning under the action of force, resulting in misalignment of the connection between the beams and columns. This phenomenon will further cause the mechanical properties at the connection nodes to not meet the design expectations, posing a potential risk to the stability and reliability of the overall structure. Summary of the invention

[0004] Technical issues solved

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a quick-joined steel structure beam-column for prefabricated buildings, which can effectively solve the problem that in the prior art, welding operators apply force to the beams and columns, but the friction between the lifting structure and the beams is insufficient and the restraining reaction force cannot be provided to counteract it, resulting in beam displacement deviation and misalignment of the connection parts.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a quick-joined steel structure beam column for assembled buildings, comprising:

[0008] Steel structural columns;

[0009] Steel structural beams;

[0010] The splicing part includes a welding group pre-assembled on the outer wall of the steel structure column, the welding group includes a side plate for limiting the side of the steel structure beam and a bearing plate for supporting the bottom end of the steel structure beam, and the bottom end of the bearing plate is detachably connected to a support group for fully supporting the bottom end of the steel structure beam;

[0011] Among them, the splicing part also includes an adjustment group for adjusting the position of the steel structure beam placed on the upper surface of the welding group, and an upper positioning piece is provided on the lower surface of the steel structure beam after the centering adjustment, and the upper surface of the upper positioning piece is snap-connected with a lower positioning piece.

[0012] Furthermore, the adjustment group includes a support plate that is fitted with the inner wall of the side panel, a screw groove is opened in the middle of one side of the support plate close to the side panel, and a slide groove is symmetrically arranged with the screw groove as the center on one side of the support plate close to the side panel, a side bolt is threadedly connected to the inner wall of the slide groove, and the side bolt and the other end of the positioning rod both pass through the side panel.

[0013] Furthermore, the side plate is provided with side bolt holes matching the screw groove and the slide groove, the middle side bolt hole is threadedly connected to the side bolt, and the remaining side bolt holes are slidably connected to the positioning rod.

[0014] Furthermore, the upper surface of the abutment plate adopts an inclined surface design, and the cavity surrounded by the symmetrical abutment plate is designed to be larger at the top and smaller at the bottom.

[0015] Furthermore, a fixing groove is provided at the bottom end of the bearing plate, and the inner wall of the fixing groove is detachably connected to the support group. The support group includes a fixing plate engaged with the fixing groove, and the bottom end of the fixing plate is fixedly connected to a support plate. The support plate, the fixing plate and the middle of the fixing groove are all provided with slot holes, and the inner wall of the slot hole is threadedly connected to a lower bolt.

[0016] Furthermore, the upper positioning member comprises an upper positioning frame which is in contact with the upper surface of the steel structure beam, a clamping plate is fixedly connected to the bottom end of the upper positioning frame, and an upper welding area is arranged on the side of the clamping plate.

[0017] Furthermore, the lower positioning member includes a lower positioning frame that is fitted with the lower surface of the steel structure beam, a lower bolt hole is opened in the middle of the lower positioning frame, the lower bolt hole is detachably connected to the bearing plate through a lower bolt, a card slot is opened at the top of the lower positioning frame to be engaged with the card plate, and a lower welding area is arranged on the side of the lower positioning frame.

[0018] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] The present invention is provided with a support plate and a bearing plate. After the steel structure beam is placed on the support plate and the bearing plate, it is in a stable state. Workers can more conveniently align the side bolt holes and insert the side bolts. Compared with the shaking of the steel structure beam in the hoisting state, the installation efficiency can be improved, the hole position deviation caused by the shaking of the steel structure beam can be avoided, the installation difficulty and time waste caused by misalignment can be reduced, and the efficiency and accuracy of the side bolt installation can be improved.

[0020] The present invention is provided with an adjustment group, which adjusts the position of the steel structure beam so that the relative position between the steel structure beam and the steel structure column remains stable during the welding process, ensuring that the size and shape of the weld meet the design requirements, ensuring the geometric accuracy of the welded joint, and thus improving the connection performance and stability of the entire steel structure; the stable support enables the steel structure beam to be evenly stressed when tightening the bolts, making it easier to ensure that the pre-tightening force of each bolt meets the design requirements. Uniform pre-tightening force is crucial to the reliability of bolt connection, and can effectively prevent loose connection and structural failure caused by insufficient pre-tightening force of individual bolts.

[0021] The present invention is provided with an upper positioning member and a lower positioning member, and the weld is arranged at the upper and lower ends of the steel structure beam, which mainly bears the bending moment of the steel structure beam. When the structure is subjected to force, the upper and lower flanges of the steel structure beam bear the largest tensile and compressive stresses, and the weld can effectively transfer these stresses to ensure the bending resistance of the steel structure beam; the side bolts are fixed on the left and right sides of the steel structure beam, which mainly bear the shear force in the horizontal direction. Through the shearing effect of the side bolts, the horizontal relative displacement between the steel structure beam and the steel structure column is prevented, so that the steel structure beam-column node remains stable under the action of horizontal load. This connection method with clear division of labor can give full play to the mechanical performance advantages of the weld and the side bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structural separation of the welding group and the adjustment group according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the connection structure changes of the steel structure beams according to an embodiment of the present invention after entering the site;

[0026] Figure 4This is a schematic diagram of the separation of the load-bearing plate and the support group structure according to an embodiment of the present invention;

[0027] Figure 5 It is a schematic diagram of the structural changes of the steel structure beam before and after being fixed according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the lower positioning member according to an embodiment of the present invention;

[0029] Figure 7 Schematic diagram of the upper positioning member structure according to an embodiment of the present invention.

[0030] The numbers in the figure represent: 1. Steel structure column; 2. Steel structure beam; 3. Splicing part; 31. Welding group; 311. Load-bearing plate; 3111. Fixing groove; 312. Side plate; 313. Side bolt hole; 32. Adjustment group; 321. Abutment plate; 322. Screw groove; 323. Slide groove; 325. Side bolt; 326. Positioning rod; 33. Support group; 331. Fixing plate; 332. Support plate; 34. Lower bolt; 35. Upper positioning piece; 351. Upper positioning frame; 352. Clamping plate; 353. Upper welding area; 36. Lower positioning piece; 361. Lower positioning frame; 362. Lower bolt hole; 363. Clamping groove; 365. Lower welding area. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Example:

[0034] See also Figure 1-Figure 7 The present invention provides a technical solution for a quick-joined steel structure beam-column for prefabricated buildings: the device includes a steel structure column 1 and a steel structure beam 2, the steel structure column 1 is fixed at a corresponding position by concrete, the top ends of the symmetrical steel structure columns 1 are connected by the steel structure beam 2, and the steel structure beam 2 is connected to the steel structure column 1 by a splicing portion 3.

[0035] During the welding process, workers need to apply a certain force to the steel structure beam 2 to adjust the position, align the weld, etc. These additional forces will break the original force balance between the lifting structure and the steel structure beam 2. When the friction between the lifting structure and the steel structure beam 2 is not enough to resist these additional forces, the steel structure beam 2 is prone to sliding or position displacement. Although the lifting equipment seems stable, in actual operation, due to various factors at the construction site, such as wind force, vibration of other mechanical equipment, etc., the lifting equipment may produce some slight shaking, which will also cause the steel structure beam 2 to shift in position during the overlap process, especially when the overlap welding or side bolts 325 are fixed for a long time, the accumulation of slight shaking may lead to more obvious position deviation. Due to the deviation of the overlap position of the steel structure beam 2, it will cause multiple and serious impacts on the prefabricated building. In terms of structural mechanical properties, the misalignment of the connection parts will cause the side bolts 325 to be unable to be accurately pierced during connection. Even if they are barely installed, it is difficult to achieve the designed preload. Weld defects will appear during welding, such as uneven width and incomplete welding, which greatly reduce the connection strength. When the structure is under load, the connection node will loosen, slip or even break prematurely, resulting in structural instability. From the perspective of overall structural stability, the position offset of the steel structure beam 2 causes the structural geometry to change, resulting in uneven deformation, such as the tilt of the building floor, and the redistribution of internal forces, overloading of some components, and insufficient load on some components. The structural force is complex and difficult to predict, and the reliability and safety are greatly reduced. In the subsequent construction stage, it will bring difficulties to the installation of other components. For example, the floor slab and the steel structure beam 2 are not tightly connected, which requires additional adjustment and repair, increasing construction costs and time. It will also have a negative impact on decoration and equipment installation, such as uneven walls and improper installation of doors and windows, which seriously affect the overall quality and use effect of the building.

[0036] refer to Figure 1 and Figure 2 The joint part 3 includes a structural member welding group 31 which is welded in the assembly workshop like the steel structure column 1. The welding group 31 includes a bearing plate 311 and a side plate 312. The bearing plate 311 and the side plate 312 are vertically arranged. The side plate 312 is symmetrically arranged with the side plate 312 as the center. The bearing plate 311 supports the bottom end of the side of the steel structure beam 2 and provides a certain support force for the hoisted steel structure beam 2. Figure 3The adjustment group 32 includes a support plate 321 that is fitted with the inner wall of the side plate 312, a screw groove 322 is opened in the middle of the side of the support plate 321 close to the side plate 312, and a slide groove 323 is symmetrically arranged on the side of the support plate 321 close to the side plate 312 with the screw groove 322 as the center, a side bolt 325 is threadedly connected to the inside of the screw groove 322, and the inner wall of the slide groove 323 is slidably connected to the side bolt 325, and the other ends of the side bolt 325 and the positioning rod 326 both pass through the side plate 312, and a side bolt hole 313 matching the screw groove 322 and the slide groove 323 is arranged inside the side plate 312, the middle side bolt hole 313 is threadedly connected to the side bolt 325, and the remaining side bolt holes 313 are slidably connected to the positioning rod 326, and the adjustment group 32 is assembled after being transported to the site, and the assembled part can be reused.

[0037] refer to Figure 2 , Figure 3 and Figure 4 , Figure 3 The upper picture shows the welded steel structure column 1 assembled in the prefabricated factory, and the lower picture shows the structural state of the assembled steel structure column 1. A fixing groove 3111 is opened at the bottom of the load-bearing plate 311, and the inner wall of the fixing groove 3111 is detachably connected to the support group 33. The support group 33 includes a fixing plate 331 engaged with the fixing groove 3111, and a support plate 332 is fixedly connected to the bottom of the fixing plate 331. Slot holes are opened in the middle of the support plate 332, and the lower bolts 34 are threadedly connected to the inner wall of the slot hole.

[0038] When the load-bearing plate 311 and the support plate 332 form a whole to support the hoisted steel beam, it provides a stable platform for the steel structure beam 2. The upper surface of the support plate 321 adopts a sloped design. The cavity surrounded by the symmetrical support plate 321 is designed to be larger at the top and smaller at the bottom. During the downward movement of the hoisted steel structure beam 2, it remains in a centered state under the action of the slope of the support plate 321. During the movement, it is limited by the support plate 321, and then the side bolts 325 are rotated. The rotation of the side bolts 325 drives the support plate 321, which is limited by the positioning rods 326 at both ends, to move to the side of the steel structure beam 2, and can further fine-tune the position of the steel structure beam 2. This makes it difficult for the steel structure beam 2 to shake or shift during subsequent welding or bolt fixing, and construction personnel can operate more accurately.

[0039] During welding, since the steel structure beam 2 is stably supported, the steel structure beam 2 will not affect the welding operation due to shaking or displacement during the welding process, and the welder can more accurately control the welding parameters, such as welding current, voltage, welding speed, etc., thereby reducing the generation of welding defects, such as pores, cracks, lack of fusion, etc., improving the quality and strength of the weld, and more accurately controlling the position and size of the weld to ensure the welding quality;

[0040] After the steel structure beam 2 is placed on the support plate 332 and the load-bearing plate 311, it is in a stable state. Workers can more conveniently align the side bolt holes 313 and insert the side bolts 325. Compared with the shaking of the steel structure beam 2 in the hoisting state, the installation efficiency can be improved, the hole position deviation caused by the shaking of the steel structure beam 2 can be avoided, the installation difficulties and time waste caused by misalignment can be reduced, and the efficiency and accuracy of the installation of the side bolts 325 can be improved;

[0041] The supporting effect of the bearing plate 311 means that the steel structure beam 2 does not need continuous support from the lifting equipment during the subsequent fixing process. The lifting equipment can be evacuated in advance to carry out lifting operations on other components, thereby improving the efficiency of the entire construction process. At the same time, in the absence of support, the steel structure beam 2 is prone to deformation under the action of its own weight and welding thermal stress, and the supporting effect of the bearing plate 311 can effectively restrain the deformation of the steel beam, reduce the impact of welding deformation on the structure, and reduce the workload and cost of subsequent deformation correction. When performing fixing operations under the restriction of the bearing plate 311, workers do not need to perform high-altitude operations on the shaking steel beam, reducing safety risks during the construction process. The stable working environment also helps workers concentrate on operations, further improving construction safety and enabling them to focus more on welding or fixing work.

[0042] According to the size, weight and stress of the steel structure beam 2, the size, thickness and material of the bearing plate 311 and the support plate 332 are accurately designed. Usually, the steel material that is the same as or has the same performance as the steel structure column 1 is used to ensure that there is sufficient strength and rigidity to bear the weight of the steel structure beam 2. When the steel structure column 1 is processed in the factory, the bearing plate 311 and the support plate 332 are pre-welded or installed in the specified position to ensure their position accuracy and installation quality. After being transported to the construction site, when the steel structure beam 2 is hoisted to the bearing plate 311 and the support plate 332, the steel structure beam 2 is hoisted to the bearing plate 311 and the support plate 332. 2, it can stably support the steel beam and realize the function of temporary bearing; the support plate 332 is fixed to the bottom of the bearing plate 311 by the lower bolt 34. When the steel structure beam 2 is not fixed, the two are an integrated structure. The support plate 332 is used to increase the length and increase the contact area with the steel structure beam 2. After completing the loading and centering fine-tuning of the steel structure beam 2, the support plate 332 is removed. The support plate 332 can also be reused, and then the upper positioning piece 35 and the lower positioning piece 36 are installed in the gap between the welding group 31 and the steel structure beam 2.

[0043] The adjustment group 32 adjusts the position of the steel structure beam 2 so that the relative position between the steel structure beam 2 and the steel structure column 1 remains stable during the welding process, ensuring that the size and shape of the weld meet the design requirements and the geometric accuracy of the weld joint, thereby improving the connection performance and stability of the entire steel structure; the stable support enables the steel structure beam 2 to be evenly stressed when tightening the bolts, making it easier to ensure that the pre-tightening force of each bolt meets the design requirements, and can effectively prevent the loose connection and structural failure caused by insufficient pre-tightening force of individual bolts;

[0044] The combination design of the butt plate 321 and the side bolt 325 is adopted. The inclined surface of the butt plate 321 matches the side of the steel structure beam 2. By rotating the side bolt 325, the butt plate 321 is pushed to move toward the steel structure beam 2. The inclined surface of the wedge block is used to squeeze the steel structure beam 2 to the center position to achieve fine adjustment of the position and center alignment. The butt plate 321 uses a high-strength and light-weight aluminum alloy material to make the wedge block to reduce the weight of the structural part and facilitate installation and removal. The side bolt 325 is made of high-strength alloy steel to ensure that it will not be deformed or damaged when the top tightening force is applied. The butt plate 321 and the side bolt 325 are threadedly connected. Reverse rotation can contact the threaded connection between the butt plate 321 and the side bolt 325. The gradually curved positioning rod 326 can be easily removed, which is convenient for the removal and installation of the butt plate 321. The inclined surface design of the butt plate 321 keeps the steel structure beam 2 stable during the movement to avoid displacement or shaking.

[0045] Before fixing, the side bolts 325 can be precisely adjusted to achieve fine-tuning of the position of the steel structure beam 2, ensuring that the steel structure beam 2 is in the accurate center position before welding or threaded fixing. The installation and disassembly process is simple and quick. After the position adjustment of the steel structure beam 2 is completed, it can be quickly removed without causing any obstruction to subsequent construction. After fixing, since the position of the steel structure beam 2 has been precisely adjusted before fixing, the weld can be guaranteed to be uniform, stress concentration points can be avoided, and the welding quality can be improved; at the same time, it can also ensure that the threaded connection is tight, reduce the risk of bolt loosening due to position deviation, and enhance the stability and reliability of the entire structure; the structural parts after removal can be reused, which reduces construction costs and conforms to the concept of energy conservation and environmental protection.

[0046] refer to Figure 5 , Figure 6 and Figure 7The upper positioning member 35 includes an upper positioning frame 351 that is fitted with the upper surface of the steel structure beam 2, and a clamping plate 352 is fixedly connected to the bottom end of the upper positioning frame 351, and an upper welding area 353 is arranged on the side of the clamping plate 352. The lower positioning member 36 includes a lower positioning frame 361 that is fitted with the lower surface of the steel structure beam 2, and a lower bolt hole 362 is opened in the middle of the lower positioning frame 361. The lower bolt hole 362 is detachably connected to the bearing plate 311 through the lower bolt 34, and a clamping groove 363 that is clamped and connected to the clamping plate 352 is opened at the top of the lower positioning frame 361, and a lower welding area 365 is arranged on the side of the lower positioning frame 361.

[0047] After the position of the steel structure beam 2 is adjusted, the support plate 332 supporting it below it is disassembled and replaced with a lower positioning frame 361. The lower positioning frame 361 is fixedly connected to the bearing plate 311 by the lower bolt 34. Then, the upper positioning member 35 is placed above the steel structure beam 2, and the clamping plate 352 of the upper positioning member 35 is inserted into the clamping groove 363 of the lower positioning member 36 to achieve the initial fixation of the upper positioning member 35 and the lower positioning member 36. The upper positioning frame 351 and the lower positioning frame 361 are both provided with slots on the sides, and the slots are threadedly connected with the side bolts 325 that pass through the slide groove 323 to achieve the fixation of the upper positioning frame 351 and the lower positioning frame 361 in the engaged state. At this time, the side bolts 325 are all arranged on the left and right sides of the steel structure beam 2. The lower welding area 365 that exists as a welding part is located at the upper and lower ends of the steel structure beam 2, and the lower bolt 34 is located at the lower end of the steel structure beam 2 to avoid oxidation corrosion caused by rain leakage.

[0048] The welds are arranged at the upper and lower ends of the steel structure beam 2, and are mainly subjected to the bending moment of the steel structure beam 2. When the structure is subjected to stress, the upper and lower flanges of the steel structure beam 2 bear the greatest tensile and compressive stresses, and the welds can effectively transfer these stresses to ensure the bending resistance of the steel structure beam 2. The side bolts 325 are fixed on the left and right sides of the steel structure beam 2, and are mainly subjected to the shear force in the horizontal direction. Through the shearing effect of the side bolts 325, the horizontal relative displacement between the steel structure beam 2 and the steel structure column 1 is prevented, so that the column node of the steel structure beam 2 remains stable under the horizontal load. This connection method with clear division of labor can give full play to the mechanical performance advantages of the welds and the side bolts 325.

[0049] During the construction process, welding operations are carried out at the upper and lower ends of the steel structure beam 2. The operating space is relatively open, and welders can perform welding operations more conveniently to ensure welding quality. The side bolts 325 are arranged on the left and right sides of the steel structure beam 2, which is convenient for workers to install and tighten the side bolts 325 from the side, thereby improving construction efficiency. At the same time, the side bolts 325 are initially fixed before welding operations, which can keep the steel structure beam 2 relatively stable during the welding process and reduce the influence of welding deformation. This arrangement forms a reliable connection between the steel structure beam 2 and the steel structure column 1, constrains the displacement of the steel structure beam 2 from multiple directions, and improves the stability of the entire structure. When subjected to dynamic loads such as earthquakes and wind loads, the welds and the side bolts 325 work together to effectively dissipate energy and enhance the structure's earthquake and wind resistance.

[0050] During the use of the structure, the maintenance and inspection of the weld and the side bolts 325 are relatively independent. The weld needs to be regularly inspected for defects such as cracks and desoldering, while the side bolts 325 need to be inspected for looseness, rust, etc. Different inspection methods and frequency requirements increase the complexity of later maintenance management.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-joined steel structure beam column for assembled buildings, characterized in that: include: Steel structural column (1); Steel structural beams (2); A splicing portion (3), the splicing portion (3) comprising a welding group (31) pre-assembled on the outer wall of the steel structure column (1), the welding group (31) comprising a side plate (312) for limiting the side of the steel structure beam (2) and a bearing plate (311) for supporting the bottom end of the steel structure beam (2), the bottom end of the bearing plate (311) being detachably connected to a support group (33) for fully supporting the bottom end of the steel structure beam (2); The splicing portion (3) further comprises an adjustment group (32) for adjusting the position of the steel structure beam (2) placed on the upper surface of the welding group (31); an upper positioning piece (35) is arranged on the lower surface of the steel structure beam (2) after the position adjustment is completed; and a lower positioning piece (36) is snap-connected to the upper surface of the upper positioning piece (35).

2. The quick-joined steel structure beam column for prefabricated buildings according to claim 1 is characterized in that: The adjustment group (32) comprises a support plate (321) fitted with the inner wall of the side plate (312); a screw groove (322) is provided in the middle of the side of the support plate (321) close to the side plate (312); a slide groove (323) is symmetrically arranged with the screw groove (322) as the center on the side of the support plate (321) close to the side plate (312); a side bolt (325) is threadedly connected inside the screw groove (322); a side bolt (325) is slidably connected to the inner wall of the slide groove (323); and the other ends of the side bolt (325) and the positioning rod (326) both penetrate the side plate (312).

3. The quick-joined steel structure beam column for prefabricated buildings according to claim 2 is characterized in that: The side plate (312) is provided with side bolt holes (313) matching the screw groove (322) and the slide groove (323), the middle side bolt hole (313) is threadedly connected to the side bolt (325), and the remaining side bolt holes (313) are slidably connected to the positioning rod (326).

4. The quick-joined steel structure beam column for prefabricated buildings according to claim 3 is characterized in that: The upper surface of the abutment plate (321) is designed with an inclined surface, and the cavity surrounded by the symmetrical abutment plate (321) is designed to be larger at the top and smaller at the bottom.

5. The quick-joined steel structure beam column for prefabricated buildings according to claim 1 is characterized in that: A fixing groove (3111) is provided at the bottom end of the bearing plate (311), and the inner wall of the fixing groove (3111) is detachably connected to the support group (33). The support group (33) comprises a fixing plate (331) engaged with the fixing groove (3111), and a supporting plate (332) is fixedly connected to the bottom end of the fixing plate (331). A slot hole is provided in the middle of the supporting plate (332), the fixing plate (331) and the fixing groove (3111), and a lower bolt (34) is threadedly connected to the inner wall of the slot hole.

6. The quick-joined steel structure beam column for prefabricated buildings according to claim 1 is characterized in that: The upper positioning member (35) comprises an upper positioning frame (351) which is in contact with the upper surface of the steel structure beam (2); a clamping plate (352) is fixedly connected to the bottom end of the upper positioning frame (351); and an upper welding area (353) is arranged on the side of the clamping plate (352).

7. The quick-joined steel structure beam column for prefabricated buildings according to claim 6 is characterized in that: The lower positioning member (36) comprises a lower positioning frame (361) which is fitted with the lower surface of the steel structure beam (2); a lower bolt hole (362) is provided in the middle of the lower positioning frame (361); the lower bolt hole (362) is detachably connected to the bearing plate (311) through a lower bolt (34); a clamping groove (363) which is clamped and connected to the clamping plate (352) is provided at the top of the lower positioning frame (361); and a lower welding area (365) is provided on the side of the lower positioning frame (361).

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