Assembly type steel structure beam column connecting piece

Abstract

The utility model discloses an assembly type steel structure beam column connecting piece which comprises a fixing base, the fixing base is connected with a stand column through a plurality of connecting bolts, an upper cover plate is arranged at the upper end of the fixing base, a lower cover plate is arranged at the lower end of the fixing base, a screw rod is rotationally connected between the upper cover plate and the lower cover plate, and a sliding base is connected into the fixing base in a sliding mode. One side of the sliding seat is in threaded connection with the screw rod; a connecting base is arranged on one side of the fixing base and comprises two sets of symmetrically-arranged connecting plates, a clamping groove is formed between the two sets of connecting plates, a web of the cross beam is placed in the clamping groove, a plurality of first connecting holes corresponding in position and size are formed in the connecting plates and the cross beam, and the cross beam is connected with the connecting plates through connecting bolts. The height deviation of the connecting pieces on the two stand columns is compensated through movement of the sliding seats, it is ensured that connection between the cross beam and the stand columns can reach the accurate position required by design, the problem of stress concentration caused by connection deviation is effectively avoided, and the reliability and stability of connecting nodes are improved.

Description

A prefabricated steel structure beam-column connector Technical Field

[0001] This utility model belongs to the field of steel structure, and specifically relates to a prefabricated steel structure beam-column connector. Background Technology

[0002] Currently, bolted connections are a common and relatively simple method in the actual construction of prefabricated steel structure beams and columns. The specific operation typically involves pre-welding a connecting plate to one side of the column, and precisely setting the appropriate number and specifications of connecting holes on both the connecting plate and the beam according to design requirements. Then, high-strength bolts are used to tightly connect the beam and the connecting plate together, thereby achieving mechanical transfer and structural integration between the beam and column. Theoretically, this connection method has advantages such as clear structure, well-defined stress distribution, and ease of disassembly and maintenance, and to a certain extent meets the basic connection requirements of traditional steel structure buildings.

[0003] However, in actual construction applications, the existing bolted connection method has exposed a series of significant technical problems, seriously affecting construction efficiency and project quality. Among these, the most prominent issue is the high precision requirement for the welding position of the connecting plates. Due to various uncontrollable factors during construction, such as differences in welding processes, errors in the machining accuracy of the columns, and the influence of the on-site construction environment, it is difficult to ensure that each connecting plate is precisely welded to its designated position on the column. Even a slight deviation in the welding position of the connecting plates, even a minor height difference, can easily lead to inconsistent heights of the connecting plates at both ends of the beam.

[0004] When the connecting plates at both ends of a crossbeam are at different heights, significant difficulties arise during the crossbeam installation process. On one hand, to ensure the crossbeam can be smoothly installed onto the connecting plates, construction workers must resort to temporary adjustments, such as forcing the crossbeam into place. These operations not only increase the difficulty and workload of construction but may also potentially damage the structural integrity of the crossbeam and connecting plates, affecting the mechanical properties of the connection joint. On the other hand, connecting plates of inconsistent heights result in initial stress on the crossbeam after installation. During subsequent use, this initial stress may gradually accumulate and release, leading to loosening, deformation, or even failure of the connection joint, seriously threatening the safety and stability of the entire steel structure building. Furthermore, the need for repeated measurements and adjustments to the welding positions of the connecting plates significantly prolongs the construction period and increases construction costs, contradicting the concept of rapid construction in prefabricated buildings. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a prefabricated steel structure beam-column connector to solve the problem of high precision requirements for the welding position of the connecting plate when the existing steel structure beam-column uses bolt connection. This reduces the difficulty of steel structure beam-column construction, improves construction efficiency, and ensures the reliability and stability of beam-column connection nodes, meeting the strict requirements of modern prefabricated steel structure buildings for efficient, high-quality and safe construction.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A prefabricated steel structure beam-column connector includes a fixing seat with a U-shaped cross-section. The fixing seat is connected to the column by several connecting bolts. The fixing seat has an upper cover plate at the upper end and a lower cover plate at the lower end. A screw is rotatably connected between the upper and lower cover plates. A sliding seat is slidably connected inside the fixing seat, and one side of the sliding seat is threadedly connected to the screw. A connecting seat is provided on one side of the fixing seat. The connecting seat includes two sets of symmetrically arranged connecting plates. A groove is provided between the two sets of connecting plates. The web of the crossbeam is placed in the groove. Several first connecting holes with corresponding positions and sizes are provided on the connecting plates and the crossbeam. The crossbeam and the connecting plates are connected by connecting bolts.

[0008] Furthermore, several guide bars are provided on the inner walls of both sides of the fixed seat, and the slide and the guide bars are fitted with a clearance.

[0009] Furthermore, the lower cover plate is threaded with several tightening bolts. After the slide position is adjusted, the ends of the tightening bolts abut against the bottom of the slide.

[0010] Furthermore, the connecting plate has a C-shaped structure, and corresponding second connecting holes are provided at both ends of the connecting plate and on the flanges on both sides of the crossbeam. The flanges of the crossbeam are connected to both ends of the connecting plate by connecting bolts.

[0011] Furthermore, the connecting seat also includes a C-shaped seat, with adjustment grooves on both sides of the C-shaped seat. An adjustment block is slidably connected inside the C-shaped seat, and a connecting plate is fixedly installed at one end of the adjustment block. The adjustment block has a first through hole, and a locking bolt is provided in the first through hole, with the locking bolt being spaced out in the adjustment groove.

[0012] Furthermore, two sets of filling blocks are symmetrically arranged on both sides of the C-shaped seat to fill the gap between the C-shaped seat and the adjusting block. One of the filling blocks has a light hole in the middle, and the other filling block has a threaded hole in the middle. The two filling blocks are connected by fastening bolts.

[0013] Furthermore, the C-shaped seat has a boss on one side, and both the boss and the filling block have trapezoidal cross-sections. The end of the adjusting block has an inclined surface that matches the filling block.

[0014] Furthermore, the C-shaped base is provided with an anti-slip mechanism, which includes two fixed plates fixedly installed on the C-shaped base. An adjusting bolt is rotatably connected between the two fixed plates. The adjusting bolt is threaded with a lug, and a washer is provided at the lower part of the lug. The washer has a second through hole at both ends corresponding to the adjusting groove, and a locking bolt is installed in the second through hole.

[0015] The beneficial effects of this utility model are:

[0016] 1) This utility model compensates for the height deviation of the connecting parts on the two columns by moving the sliding block, ensuring that the connection between the beam and the column can reach the precise position required by the design, effectively avoiding stress concentration caused by connection deviation, and improving the reliability and stability of the connection node.

[0017] 2) By setting guide bars on the inner wall of the fixed seat, the sliding of the slide is guided and the torque of the slide in the fixed seat is distributed, which reduces the torsional load on the screw and improves the safety and durability of the steel structure beam-column connection node.

[0018] 3) Tightening bolts are provided on the lower cover plate to hold the bottom of the slide block in place, providing rigid support for the bottom of the slide block and further reducing the burden on the screw.

[0019] 4) An adjustment groove is provided on the C-shaped seat of the connecting seat, and an adjustment block is provided inside the C-shaped seat. By loosening the locking bolt, the adjustment block can be slid to change the spacing of the connecting plates to adapt to the actual column spacing. This allows the crossbeam to be cut within a reasonable error range, reducing the production precision requirements of prefabricated components.

[0020] 5) Mutually contoured filler blocks are provided on both sides of the C-shaped seat to fill the gap between the C-shaped seat and the adjusting block, thereby enhancing the rigidity of the C-shaped seat and preventing it from deforming under stress.

[0021] 6) An anti-slip mechanism is provided on the C-type seat. The position of the locking bolt is locked by the lower part of the adjusting bolt and the shim below it, which prevents the adjusting block from sliding when subjected to external alternating loads and ensures the stability of the connecting parts. Attached Figure Description

[0022] Figure 1 shows the usage status of the connector.

[0023] Figure 2 is an enlarged view of point A in Figure 1.

[0024] Figure 3 is a schematic diagram of the assembly of the fixed base and the connecting base.

[0025] Figure 4 is a schematic diagram of the mounting base.

[0026] Figure 5 is a schematic diagram of the connector.

[0027] Figure 6 is a sectional view of the connector.

[0028] Figure 7 is a schematic diagram of the anti-slip mechanism.

[0029] In the diagram, 1. Column; 2. Horizontal beam; 3. Fixing seat; 31. Upper cover plate; 32. Lower cover plate; 33. Guide bar; 34. Slide seat; 35. Tightening bolt; 36. Connecting bolt; 37. Screw; 4. Connecting seat; 41. C-shaped seat; 42. Adjusting groove; 43. Boss; 44. Filler block; 45. Adjusting block; 46. First through hole; 47. Connecting plate; 48. Slot; 49. Fastening bolt; 5. Anti-slip mechanism; 51. Fixing plate; 52. Adjusting bolt; 53. Shim; 54. Second through hole; 55. Lug. Detailed Implementation

[0030] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to Figures 1-7. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] As shown in Figures 1-3, a prefabricated steel structure beam-column connector includes a fixing seat 3. As shown in Figure 4, the fixing seat 3 has a U-shaped cross-section and is connected to the column 1 by several connecting bolts 36. The fixing seat 3 has an upper cover plate 31 at the upper end and a lower cover plate 32 at the lower end. A screw 37 is rotatably connected between the upper cover plate 31 and the lower cover plate 32. A slide seat 34 is slidably connected inside the fixing seat 3, and one side of the slide seat 34 is threadedly connected to the screw 37. A connecting seat 4 is provided on one side of the fixing seat 3. As shown in Figure 5, the connecting seat 4 includes two sets of symmetrically arranged connecting plates 47. A slot 48 is provided between the two sets of connecting plates 47. The web of the crossbeam is placed in the slot 48. Several first connecting holes with corresponding positions and sizes are provided on the connecting plates 47 and the crossbeam 2. The crossbeam 2 is connected to the connecting plates 47 by connecting bolts 36.

[0033] By rotating the screw 37, the slide 34 moves up and down within the fixed base 3, enabling rapid and precise adjustment of the connector's position on the construction site. This eliminates the need for cumbersome repositioning or disassembly and reassembly of the entire structure, as required by traditional connection methods, thus shortening the installation time for individual connection nodes. Furthermore, the movement of the slide 34 compensates for height discrepancies between the connectors on the two columns, ensuring the connection between the beam and the column achieves the precise position required by the design. This effectively avoids stress concentration problems caused by connection deviations, improving the reliability and stability of the connection node.

[0034] As shown in Figure 4, several guide bars 33 are provided on the inner walls of both sides of the fixed seat 3. The slide 34 is fitted with the guide bars 33 with a clearance. The guide bars 33 not only guide the movement of the slide 34, preventing the slide 34 from deviating, shaking or jamming during movement, but also distribute the torque of the slide 34 in the fixed seat 3. By distributing the torque to the guide bars 33 on the inner walls of both sides of the fixed seat 3, the torque burden on the screw 37 is effectively reduced, avoiding the safety hazards such as deformation, loosening or even breakage of the screw 37 due to long-term excessive torque, and improving the safety and durability of the steel structure beam-column connection node.

[0035] As shown in Figure 4, the lower cover plate 32 is threaded with several tightening bolts 35. After the position of the slide 34 is adjusted, the ends of the tightening bolts 35 abut against the bottom of the slide 34, providing rigid support for the bottom of the slide 34 and further reducing the burden on the screw 37.

[0036] As shown in Figure 5, the connecting plate 47 has a C-shaped structure. The two ends of the connecting plate 47 and the flanges on both sides of the crossbeam are provided with corresponding second connecting holes. The flanges of the crossbeam are connected to the two ends of the connecting plate 47 by connecting bolts 36, which further enhances the stability of the connection between the crossbeam and the connecting parts.

[0037] As shown in Figures 5 and 6, the connecting seat 4 also includes a C-shaped seat 41. The C-shaped seat 41 has adjustment grooves 42 on both sides. An adjustment block 45 is slidably connected inside the C-shaped seat 41. A connecting plate 47 is fixedly installed on one end of the adjustment block 45. The adjustment block 45 has a first through hole 46. A locking bolt is provided in the first through hole 46, and the locking bolt is intermittently disposed in the adjustment groove 42.

[0038] In actual steel structure installation sites, due to factors such as processing errors and on-site measurement deviations, the length of the crossbeams and the spacing of the columns 1 often differ slightly from the theoretical design. Traditional connectors, with their fixed spacing, require reprocessing of the crossbeams or adjustment of the column 1 positions if deviations occur, consuming significant time and cost. In contrast, the adjusting block 45 in this solution cooperates with the C-shaped seat 41. By loosening the locking bolts, the adjusting block 45 can slide to change the spacing of the connecting plates 47, adapting to the actual column 1 spacing. This allows the crossbeams to be cut within a reasonable error range, reducing the precision requirements for prefabricated component production.

[0039] As shown in Figure 6, two sets of filling blocks 44 are symmetrically arranged on both sides of the C-shaped seat 41 to fill the gap between the C-shaped seat 41 and the adjusting block 45. One of the filling blocks 44 has a light hole in the middle, and the other filling block 44 has a threaded hole in the middle. The two filling blocks 44 are connected by fastening bolts 49 to ensure the stability of the connector.

[0040] As shown in Figure 6, a boss 43 is provided on one side of the C-shaped seat 41. Both the boss 43 and the filling block 44 have trapezoidal cross sections. The end of the adjusting block 45 is provided with an inclined surface that matches the filling block 44, ensuring that after the position of the adjusting block 45 is adjusted, the filling block 44 fills the gap between the boss 43 and the adjusting block 45, thereby enhancing the rigidity of the C-shaped seat 41 and preventing the C-shaped seat 41 from deforming under stress.

[0041] As shown in Figures 5 and 7, the C-shaped base 41 is provided with an anti-slip mechanism 5. The anti-slip mechanism 5 includes two fixed plates 51 fixedly installed on the C-shaped base 41. An adjusting bolt 52 is rotatably connected between the two fixed plates 51. The adjusting bolt 52 is threaded with a lug 55. A washer 53 is provided at the lower part of the lug 55. The two ends of the washer 53 are provided with second through holes 54 corresponding to the adjusting groove 42. The locking bolt is installed in the second through hole 54.

[0042] When adjusting the position of the adjusting block 45 within the C-shaped seat 41, first loosen the locking bolt, then rotate the adjusting bolt 52, using the adjusting bolt 52 to drive the locking bolt to slide within the adjusting groove 42; after the position of the adjusting block 45 is adjusted, tighten the nut at the lower end of the locking bolt to fix the adjusting block 45; when the adjusting block 45 is subjected to external alternating loads (such as vibration and impact), the threaded pair between the adjusting bolt 52 and the lug 55 will not automatically loosen due to the reverse torque, ensuring the long-term stability of the adjustment position, thereby guaranteeing the stability of the connecting parts.

[0043] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A fabricated steel structure beam column connector comprising a fixing base, characterized in that, The fixed seat has a U-shaped cross-section and is connected to the column by several connecting bolts. The fixed seat has an upper cover plate at the upper end and a lower cover plate at the lower end. A screw is rotatably connected between the upper cover plate and the lower cover plate. A slide is slidably connected inside the fixed seat, and one side of the slide is threaded to the screw. A connecting seat is provided on one side of the fixed seat. The connecting seat includes two sets of symmetrically arranged connecting plates. A slot is provided between the two sets of connecting plates. The web of the crossbeam is placed in the slot. Several first connecting holes with corresponding positions and sizes are provided on the connecting plates and the crossbeam. The crossbeam and the connecting plates are connected by connecting bolts.

2. The prefabricated steel structure beam-column connector according to claim 1, characterized in that, The inner walls on both sides of the fixed seat are provided with several guide bars, and the slide and the guide bars are fitted with a clearance.

3. The prefabricated steel structure beam-column connector according to claim 1, characterized in that, The lower cover plate is threaded with several tightening bolts. After the slide position is adjusted, the ends of the tightening bolts abut against the bottom of the slide.

4. A prefabricated steel structure beam-column connector according to claim 1, characterized in that, The connecting plate has a C-shaped structure. The two ends of the connecting plate and the flanges on both sides of the crossbeam are provided with corresponding second connecting holes. The flanges of the crossbeam are connected to the two ends of the connecting plate by connecting bolts.

5. A prefabricated steel structure beam-column connector according to any one of claims 1-4, characterized in that, The connecting seat also includes a C-shaped seat, with adjustment grooves on both sides of the C-shaped seat. An adjustment block is slidably connected inside the C-shaped seat. A connecting plate is fixedly installed at one end of the adjustment block. The adjustment block has a first through hole, and a locking bolt is provided in the first through hole. The locking bolt is intermittently positioned in the adjustment groove.

6. The fabricated steel structure beam-column connection of claim 5, wherein Two sets of filling blocks are symmetrically arranged on both sides of the C-shaped seat to fill the gap between the C-shaped seat and the adjusting block. One of the filling blocks has a light hole in the middle, and the other filling block has a threaded hole in the middle. The two filling blocks are connected by fastening bolts.

7. A prefabricated steel structure beam-column connector according to claim 6, characterized in that, The C-shaped seat has a boss on one side. Both the boss and the filling block have trapezoidal cross-sections. The end of the adjusting block has an inclined surface that matches the filling block.

8. A prefabricated steel structure beam-column connector according to claim 5, characterized in that, The C-shaped base is provided with an anti-slip mechanism, which includes two fixed plates fixedly installed on the C-shaped base. An adjusting bolt is rotatably connected between the two fixed plates. The adjusting bolt is threaded with a lug. A washer is provided at the lower part of the lug. The washer has a second through hole at both ends corresponding to the adjusting groove. A locking bolt is installed in the second through hole.

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