Steel beam and steel column end fixing assembly

Abstract

The utility model relates to the technical field of steel structure connecting pieces, in particular to a steel beam and steel column end fixing assembly which comprises a horizontal square pipe, the horizontal square pipe is connected with the outer side wall of the end of a steel beam in a sleeved mode and fixedly connected with the outer side wall of the end of the steel beam in a bolted mode, an upper inserting part is fixedly installed at the bottom of the horizontal square pipe, and a vertical steel column is arranged below the steel beam. The bottom of the steel column is pre-buried and fixed, the top of the steel column is provided with a lower bearing and locking part, the lower end of the upper inserting part is inserted into the lower bearing and locking part in a matched mode, the upper inserting part and the lower bearing and locking part are fixed in a bolted mode through a bolt part, and a lower anti-disengaging part is arranged in the lower bearing and locking part. And the top of the lower anti-falling piece is inserted into the upper inserting part. The end of the steel beam is stably connected with the steel column through matched insertion connection of the upper insertion connection component and the lower bearing locking component and bolting connection of the horizontal square pipe and the steel beam, the vibration and wind load working conditions can be effectively coped, and the stability and safety of a building structure are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of steel structure connectors, and in particular to a steel beam and steel column end fixing component. Background Technology

[0002] In many fields such as current building construction and machinery manufacturing, the connection and fixation of steel beams and columns are crucial. Numerous innovative designs have emerged in this area. A search revealed a stable steel beam structure disclosed in patent publication number CN222500616U, which includes a connection and fixation structure for steel beams and columns. This structure improves stability to a certain extent by adding mounting seats to the beams and columns and reinforcing tubes inside the crossbeams. However, in practical applications, some problems still need to be addressed regarding the connection of the steel beam and column ends.

[0003] On the one hand, existing connection methods are prone to loosening when faced with complex stress conditions, especially dynamic loads, vibration environments, and long-term fatigue. Once loosening occurs, it will lead to a decline in the mechanical properties of the entire structure, and in severe cases, it may even cause safety accidents. For example, in some large industrial plants, the risk of loosening at the connection between steel beams and steel columns is significantly increased due to the continuous vibration generated by the long-term operation of mechanical equipment.

[0004] On the other hand, conventional fixing methods are not very effective at resisting displacement caused by factors such as temperature changes and foundation settlement. When these displacements occur, it is difficult to maintain a tight connection at the joints, thus affecting the overall stability of the structure. In high-rise buildings, for example, as the height increases, the impact of wind loads and temperature changes on structural deformation becomes more pronounced, requiring higher reliability of the fixing at the ends of steel beams and columns.

[0005] In summary, existing methods for fixing the ends of steel beams and columns are insufficient in terms of anti-detachment performance and reinforcement effect. There is an urgent need for an innovative structural design to effectively solve the above problems and meet the diverse needs of practical engineering applications. Utility Model Content

[0006] To solve one of the aforementioned technical problems, the present invention provides the following technical solution: a steel beam and steel column end fixing assembly, comprising a horizontal square tube, which is sleeved on the outer side wall of the end of the steel beam and bolted to it. An upper insertion component is fixedly installed at the bottom of the horizontal square tube. A vertical steel column is provided below the steel beam, with its bottom pre-embedded and fixed. A lower receiving and locking component is installed at the top of the steel column. The lower end of the upper insertion component is inserted into the interior of the lower receiving and locking component, and the two are bolted together. A lower anti-detachment component is provided inside the lower receiving and locking component, with its top inserted into the interior of the upper insertion component.

[0007] In any of the above embodiments, it is preferred that the lower receiving and locking component includes a central vertical tube fixed to the top center of the steel column, and through openings communicating with the interior of the central vertical tube are provided on the outer side walls on both sides of the middle portion. A lateral shift locking component is provided on the outer side of each through opening, and a sliding wedge block is fixedly installed on the inner side wall of the middle portion of the lateral shift locking component. The inner end of the sliding wedge block is slidably inserted into the through opening, and a side pressure slope is provided at the inner end face of the sliding wedge block. In the installed state, the two side pressure slopes are respectively used to cooperate and abut with the upper insertion component above. Screw holes for bolts to pass through are provided at both the upper and lower portions of the central vertical tube.

[0008] In any of the above embodiments, it is preferred that the lateral shifting locking member includes a vertically arranged lateral shifting plate seat, and a plurality of outwardly protruding serrations are formed at intervals along the height direction on the outer side wall of each lateral shifting plate seat. Each outwardly protruding serration engages with the inner groove at the corresponding position inside the upper insertion component. The middle part of the inner side wall of the lateral shifting plate seat is integrally formed and fixedly connected to the outer end of the sliding wedge block.

[0009] In any of the above embodiments, it is preferred that a reinforcing steel sleeve is fitted onto the outside of the upper insertion component, the lower part of the reinforcing steel sleeve extends to the upper outer side wall of the steel column and is bolted to the steel column, and the screw hole is provided through the reinforcing steel sleeve and extends to its outer side.

[0010] In any of the above embodiments, preferably, the upper insertion component includes a constraint steel cylinder fixedly installed at the bottom of the horizontal square tube. The inner sidewall of the constraint steel cylinder is provided with an inner groove that meshes with each of the externally protruding saw teeth. A downward pressing column is provided at the center of the constraint cavity of the constraint steel cylinder. The lower outer sidewall of the downward pressing column is provided with a conical surface for abutting and cooperating with the side pressing inclined surface. The screw hole is provided on the middle outer sidewall of the downward pressing column. A toothed hole that mates with the lower anti-detachment component is provided at the bottom center of the downward pressing column. A plurality of saw teeth are provided at intervals on the inner sidewall of the toothed hole.

[0011] In any of the above embodiments, it is preferred that the lower anti-detachment component includes a plug-in column fixedly installed at the top center of the steel column, a central groove is provided at the top of the plug-in column, a plurality of oblique serrations that mesh with the serration groove are respectively provided on the outer side wall of the plug-in column on both sides of the central groove, and the screw hole is provided on the outer side wall of the plug-in column.

[0012] In any of the above embodiments, it is preferred that the bottom of the restraining steel cylinder abuts against the top of the steel column.

[0013] In any of the above embodiments, it is preferred that the bottom of the horizontal square tube at the top of the pressing column is provided with a mounting through hole for the pressing column to pass through.

[0014] In any of the above embodiments, it is preferred that the angle between the lateral pressure slope and the vertical opposite direction is 15°-45°.

[0015] In any of the above embodiments, it is preferred that a molten iron reinforcement layer is cast in the space between the central riser and the side shift plate seats on both sides, and the molten iron reinforcement layer is formed by cooling the molten iron.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Stable and reliable connection: The upper plug-in component and the lower receiving and locking component are plugged together, and the horizontal square tube is bolted to the steel beam, so that the end of the steel beam and the steel column are stably connected. It can effectively cope with vibration and wind load conditions and ensure the stability and safety of the building structure.

[0018] 2. Excellent anti-detachment effect: The lower anti-detachment component inside the lower receiving and locking component is inserted into the upper plug-in component to achieve linkage locking and anti-detachment, which enhances the stability of the connection and prevents the upper and lower components from accidentally separating.

[0019] 3. The combination of plug-in and bolt-on connections facilitates adjustment and positioning during construction. If there are deviations in the relative positions of the steel beams and columns during installation, fine-tuning can be achieved by adjusting the insertion depth and loosening the bolts, meeting the requirements of high-precision construction projects. Furthermore, the inclined structure of the downward-pressing column and the lateral locking component automatically engages the outward-protruding serrations with the inner grooves during installation, simplifying the construction process and improving installation efficiency.

[0020] 4. High structural strength: A reinforcing steel sleeve is fitted onto the outside of the upper insertion component and bolted to the steel column, sharing the stress on the connecting components, improving the strength and rigidity of the connection, and extending the service life of the structure. Simultaneously, a molten iron reinforcement layer is poured into the space between the central riser and the side-shifting plate seat to enhance the structural strength and rigidity of the lower supporting locking components.

[0021] 5. Reasonable stress distribution: The outward convex saw teeth mesh with the inner groove teeth, increasing the friction and biting force at the connection point, changing the stress distribution at the connection point, making the horizontal load more evenly distributed on the connection structure, improving the structural bearing capacity, and extending the service life of the structure. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0023] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0024] Figure 2 This is an exploded structural diagram of the present invention.

[0025] Figure 3 This is a cross-sectional structural diagram of the lower supporting locking component of this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the lower receiving and locking component of this utility model when the lateral shifting locking member is in the closed-out state.

[0027] Figure 5 This is a partial structural diagram of the lower supporting and locking component of this utility model.

[0028] Parts list: 1. Horizontal square tube; 2. Steel beam; 3. Steel column; 4. Bolts; 5. Central riser; 6. Through opening; 7. Sliding wedge block; 8. Side pressure inclined surface; 9. Screw hole; 10. Side shift plate seat; 11. Outward convex sawtooth; 12. Inner groove; 13. Reinforcing steel sleeve; 14. Constraint steel cylinder; 15. Downward pressure column; 16. Conical surface; 17. Toothed hole; 18. Sawtooth groove; 19. Insertion column; 20. Central groove; 21. Oblique sawtooth; 22. Mounting through hole; 23. Molten iron reinforcement layer. Detailed Implementation

[0029] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-5 As shown in the image.

[0030] Example 1: A steel beam and steel column end fixing assembly includes a horizontal square tube 1, which is sleeved on the outer side wall of the end of a steel beam 2 and bolted to it. An upper insertion component is fixedly installed at the bottom of the horizontal square tube 1. A vertical steel column 3 is provided below the steel beam 2. The bottom of the steel column 3 is pre-embedded and fixed. A lower receiving and locking component is installed at the top of the steel column 3. The lower end of the upper insertion component is inserted into the interior of the lower receiving and locking component and the two are bolted together by bolts 4. A lower anti-detachment component is provided inside the lower receiving and locking component. The top of the lower anti-detachment component is inserted into the interior of the upper insertion component.

[0031] The steel beam and column end fixing assembly of this utility model effectively ensures a stable connection between the horizontal square tube 1 and the steel column 3 through the interlocking of the upper insertion component and the lower receiving and locking component. Simultaneously, the connection between the horizontal square tube 1 and the steel beam 2 achieves a stable connection between the end of the entire steel beam 2 and the steel column 3. To further enhance the stability of the connection, a lower anti-detachment component is provided inside the lower receiving and locking component. This anti-detachment component inserts into the upper insertion component to achieve linkage locking and anti-detachment, effectively coping with vibration and wind load conditions and improving the stability of the installation. After the upper insertion component and the lower receiving and locking component are installed, they are finally reinforced with bolts 4. Simultaneously, the end of the steel beam 2 is inserted into the inner cavity of the horizontal square tube 1 using hoisting equipment to achieve bolt fixation.

[0032] In any of the above embodiments, it is preferred that the lower receiving and locking component includes a central vertical tube 5 fixed at the top center of the steel column 3, and through openings 6 connected to the interior of the central vertical tube 5 on the outer side walls on both sides of the middle part. A lateral shift locking component is provided on the outer side of each through opening 6. A sliding wedge block 7 is fixedly installed on the inner side wall of the middle part of the lateral shift locking component. The inner end of the sliding wedge block 7 is slidably inserted into the through opening 6. A side pressure slope 8 is provided on the inner end face of the sliding wedge block 7. In the installed state, the two side pressure slopes 8 are respectively used to cooperate and abut with the upper insertion component above. Screw holes 9 for bolts 4 to pass through are provided at both the upper and lower parts of the central vertical tube 5.

[0033] During installation, as the upper insertion component is inserted into the lower receiving and locking component, the inner end of the sliding wedge block 7 of the lateral locking component slides within the through-hole 6. Its lateral pressure slope 8 engages with the upper insertion component, providing lateral limiting and locking for the upper insertion component. Both lateral locking components on both sides mesh with the inner groove 12 of the upper insertion component, ensuring locking stability. Simultaneously, the bolt 4 passes through the screw holes 9 at the top and bottom of the central riser 5 to further secure the upper and lower components.

[0034] In any of the above embodiments, it is preferred that the lateral shifting locking member includes a vertically arranged lateral shifting plate seat 10, and a plurality of outwardly protruding serrations 11 are formed at intervals along the height direction on the outer side wall of each lateral shifting plate seat 10. Each outwardly protruding serration 11 engages with the inner groove 12 at the corresponding position inside the upper insertion component. The middle part of the inner side wall of the lateral shifting plate seat 10 is integrally formed and fixedly connected to the outer end of the sliding wedge block 7.

[0035] When the upper plug-in component is inserted, the outwardly protruding serrations 11 on the side-shifting plate seat 10 engage with the inner groove 12 of the upper plug-in component, further restricting the relative movement between the upper plug-in component and the lower receiving locking component. The downward pressure of the downward-pressing column 15 can effectively cooperate with the side-pressing inclined surface 8 of the sliding wedge block 7, enhancing the overall locking effect. The top of the downward-pressing column 15 abuts against the bottom of the steel beam 2 inside the horizontal square tube 1, and the downward pressure of the steel beam 2 prevents the downward-pressing column 15 from tilting upward.

[0036] Specifically, regarding the locking mechanism, during the installation of the steel beam and column end fixing components, as the upper insertion component is inserted into the lower receiving locking component, the tapered surface 16 at the bottom of the pressing column 15 gradually contacts and presses down on the side-pressure inclined surface 8 of the sliding wedge block 7 on the side-shifting locking component. According to the mechanical principles of the inclined surface, the downward pressure of the pressing column 15 is decomposed into a pressure perpendicular to the side-pressure inclined surface 8 and a component force along the direction of the side-pressure inclined surface 8. This component force along the direction of the side-pressure inclined surface 8 pushes the sliding wedge block 7 outward. Since the sliding wedge block 7 is integrally formed and fixed to the side-shifting plate seat 10, the side-shifting plate seat 10 will be pushed outward together with the sliding wedge block 7. The protruding serrations 11 on the side-shifting plate seat 10 gradually approach and engage with the inner grooves 12 inside the restraining steel cylinder 14, thereby tightly connecting the upper insertion component (restraining steel cylinder 14) and the lower receiving locking component (the part where the side-shifting plate seat 10 is located), preventing relative displacement between the two in the horizontal direction and achieving the anti-disengagement function. Utilizing the inclined structure of the downward-pressing column 15 and the side-shifting locking component, the function of automatically engaging the protruding serrations 11 with the inner grooves 12 during installation is achieved, eliminating the need for additional operating steps, simplifying the construction process, and improving installation efficiency. The engagement of the protruding serrations 11 with the inner grooves 12 increases the friction and biting force at the connection point. Compared to a single connection method, it can more effectively resist horizontal forces, greatly enhancing the reliability of the connection between the steel beam 2 and the steel column 3, improving the overall stability of the structure, and better coping with vibration, wind loads, and other conditions. Simultaneously, it prevents relative displacement between the upper insertion component and the lower receiving and locking component in the horizontal direction, ensuring the horizontal stability of the connection between steel beam 2 and steel column 3, and guaranteeing the safety of the building structure under horizontal loads. The engagement of the outwardly protruding sawtooth 11 and the inner groove 12 alters the stress distribution at the connection point, allowing the horizontal load to be more evenly distributed across the entire connection structure, thereby improving the structure's load-bearing capacity and extending its service life.

[0037] In any of the above embodiments, it is preferred that a reinforcing steel sleeve 13 is sleeved on the outside of the upper insertion component, the lower part of the reinforcing steel sleeve 13 extends to the upper outer side wall of the steel column 3 and is bolted and fixed to the steel column 3, and the screw hole 9 is provided through the reinforcing steel sleeve 13 and extends to its outer side.

[0038] The reinforcing steel sleeve 13 is fitted onto the outside of the upper insertion component and bolted to the steel column 3. Bolts pass through the threaded holes 9 to further tighten the reinforcing steel sleeve 13, the upper insertion component, and the steel column 3, enhancing the overall connection strength. The reinforcing steel sleeve 13 improves the strength and rigidity of the connection, distributes the stress on the connection components, and extends the service life of the structure.

[0039] Example 2: Compared with Example 1, this example also includes the following technical features:

[0040] In any of the above embodiments, preferably, the upper insertion component includes a constraint steel cylinder 14 fixedly installed at the bottom of the horizontal square tube 1. The inner sidewall of the constraint steel cylinder 14 is provided with an inner groove 12 that meshes with each of the externally protruding saw teeth 11. A downward pressing column 15 is provided at the center of the constraint cavity of the constraint steel cylinder 14. The lower outer sidewall of the downward pressing column 15 is provided with a conical surface 16 for abutting and cooperating with the side pressing inclined surface 8. The screw hole 9 is provided on the middle outer sidewall of the downward pressing column 15. A toothed hole 17 that cooperates with the lower anti-detachment component is provided at the bottom center of the downward pressing column 15. A plurality of saw teeth 18 are provided at intervals on the inner sidewall of the toothed hole 17.

[0041] During installation, the tapered surface 16 at the bottom of the pressure column 15 abuts against the lateral pressure slope 8 of the sliding wedge block 7, providing vertical and lateral positioning and locking forces. The top of the lower anti-detachment component is inserted into the toothed hole 17 at the bottom of the pressure column 15, and its oblique serrations 21 engage with the serrated groove 18 on the inner side wall of the toothed hole 17, further enhancing the stability of the connection. Bolts are used to fasten all components through the screw hole 9 in the middle of the pressure column 15. The design of the constraint steel cylinder 14, the pressure column 15, and other components makes the connection structure more compact, and the coordinated work of all components enhances the reliability and stability of the connection.

[0042] In any of the above embodiments, it is preferred that the lower anti-detachment component includes a plug-in column 19 fixedly installed at the top center of the steel column 3, a central groove 20 is provided at the top of the plug-in column 19, a plurality of oblique serrations 21 that mesh with the serrated grooves 18 are respectively provided on the outer side walls of the plug-in column 19 on both sides of the central groove 20, and the screw holes 9 are provided on the outer side walls of the plug-in column 19.

[0043] The oblique serration 21 at the top of the plug-in column 19 engages with the serrated groove 18 on the inner side wall of the toothed hole 17 of the lower pressure column 15, thereby achieving linkage locking with the upper plug-in component. The bolts fix it to other components through the screw hole 9 on the outer side wall of the plug-in column 19.

[0044] The combination of the oblique serration 21 and the serration groove 18 is simple and effective, enhancing the firmness of the connection and preventing accidental separation between the upper and lower parts.

[0045] Additionally, as an optional feature, in projects requiring dynamic monitoring of the connection structure, the lower anti-detachment component's structure facilitates the installation of sensors. For example, a strain sensor can be installed on the outer wall of the plug-in column 19 to monitor the strain at the meshing point of the oblique sawtooth 21 and the sawtooth groove 18, thereby providing real-time information on the stress state of the connection and supporting data for structural safety assessment.

[0046] In any of the above embodiments, it is preferred that the bottom of the restraining steel cylinder 14 abuts against the top of the steel column 3.

[0047] The bottom of the restraint steel cylinder 14 abuts against the top of the steel column 3, serving as support and positioning to ensure the accurate relative position of the upper insertion component and the steel column 3, while also sharing the vertical load of the connection part to a certain extent.

[0048] In any of the above embodiments, it is preferred that a mounting through hole 22 is provided at the bottom of the horizontal square tube 1 at the top of the pressing column 15 for the pressing column 15 to pass through.

[0049] This allows for easy adjustment and control of the vertical movement of the pressing column 15 within a certain height direction, ensuring that it can be pressed downwards and pushed outwards as needed by the lateral locking components on both sides.

[0050] In any of the above embodiments, it is preferred that the angle between the side pressure inclined surface 8 and the vertical opposite direction is 15°-45°.

[0051] The lateral pressure slope 8 maintains a specific angle with the vertical direction. When it cooperates with the tapered surface 16 of the lower pressure column 15, it can provide a suitable lateral force while ensuring a certain vertical load-bearing capacity, thereby achieving lateral limiting and locking of the upper plug-in component.

[0052] In any of the above embodiments, it is preferred that a molten iron reinforcement layer 23 is cast in the space between the central riser 5 and the side shift plate seats 10 on both sides, and the molten iron reinforcement layer 23 is formed by cooling the molten iron.

[0053] The molten iron reinforcement layer 23 is poured, and after the molten iron cools and solidifies, it connects the central riser 5 and the side shift plate seat 10 into a whole, which enhances the structural strength and rigidity of the lower supporting locking components.

[0054] The specific working principle is as follows: First, the bottom of steel column 3 is pre-embedded and fixed, and then the lower receiving and locking component is installed on the top of steel column 3. Next, the lower end of the upper plug-in component is inserted into the lower receiving and locking component, and the top of the lower anti-detachment component is also inserted into the upper plug-in component during insertion. Then, the two are fixed together with bolts 4. Finally, the end of steel beam 2 is inserted into the inner cavity of horizontal square tube 1 and bolted using hoisting equipment, thereby achieving a stable connection between steel beam 2 and steel column 3. Through the cooperation of the upper plug-in component and the lower receiving and locking component, a stable connection between horizontal square tube 1 and steel column 3 can be ensured. In addition, the bolting of horizontal square tube 1 to steel beam 2 achieves a stable connection between the end of steel beam 2 and steel column 3. The setting of the lower anti-detachment component can achieve linkage locking and anti-detachment with the upper plug-in component, improve the stability of installation and coordination under vibration and wind load conditions, meet the requirements of beam and column connection in building structures, and ensure the stability and safety of the structure. The entire component connection method facilitates adjustment and positioning during construction. Because it is a combination of plug-in and bolt-in connections, if a deviation in the relative position of steel beam 2 and steel column 3 is found during installation, it can be fine-tuned by adjusting the insertion depth of the upper plug-in component and the lower receiving and locking component, as well as loosening the bolts. This is especially important in some construction projects with high precision requirements.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0056] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A steel beam / column end fixing assembly, characterized in that: The device includes a horizontal square tube, which is sleeved onto the outer wall of the end of a steel beam and bolted to it. An upper insertion component is fixedly installed at the bottom of the horizontal square tube. A vertical steel column is provided below the steel beam, with its bottom pre-embedded and fixed. A lower receiving and locking component is installed at the top of the steel column. The lower end of the upper insertion component is inserted into the interior of the lower receiving and locking component, and the two are bolted together. A lower anti-detachment component is provided inside the lower receiving and locking component, and the top of the lower anti-detachment component is inserted into the interior of the upper insertion component.

2. The steel beam and steel column end fixing assembly according to claim 1, characterized in that: The lower receiving and locking component includes a central vertical tube fixed at the top center of the steel column. Through-holes communicating with the interior are provided on the outer side walls of both sides of the central vertical tube. Lateral locking components are provided on the outer side of each through-hole. A sliding wedge block is fixedly installed on the inner side wall of the middle portion of each lateral locking component. The inner end of the sliding wedge block is slidably inserted into the through-hole. A side-pressure inclined surface is provided on the inner end face of the sliding wedge block. In the installed state, the two side-pressure inclined surfaces are respectively used to cooperate and abut with the upper insertion component above. Screw holes for bolts to pass through are provided at both the upper and lower parts of the central vertical tube.

3. The steel beam and steel column end fixing assembly according to claim 2, characterized in that: The lateral shift locking member includes a vertically arranged lateral shift plate seat. Several protruding serrations are formed at intervals along the height direction on the outer side wall of each lateral shift plate seat. Each protruding serration engages with the inner groove at the corresponding position inside the upper insertion component. The middle part of the inner side wall of the lateral shift plate seat is integrally formed and fixedly connected to the outer end of the sliding wedge block.

4. The steel beam and steel column end fixing assembly according to claim 3, characterized in that: A reinforcing steel sleeve is fitted onto the outside of the upper insertion component. The lower part of the reinforcing steel sleeve extends to the upper outer side wall of the steel column and is bolted to the steel column. The screw hole passes through the reinforcing steel sleeve and extends to its outer side.

5. The steel beam and steel column end fixing assembly according to claim 4, characterized in that: The upper insertion component includes a constraint steel cylinder fixedly installed at the bottom of the horizontal square tube. The inner sidewall of the constraint steel cylinder is provided with an inner groove that meshes with each of the external convex saw teeth. A downward pressing column is provided at the center of the constraint cavity of the constraint steel cylinder. The lower outer sidewall of the downward pressing column is provided with a conical surface for abutting and cooperating with the side pressing inclined surface. The screw hole is provided on the middle outer sidewall of the downward pressing column. A toothed hole that mates with the lower anti-detachment component is provided at the bottom center of the downward pressing column. A plurality of saw teeth are provided at intervals on the inner sidewall of the toothed hole.

6. The steel beam / column end fixing assembly according to claim 5, characterized in that: The lower anti-detachment component includes a plug-in column fixedly installed at the top center of the steel column. A central groove is provided at the top of the plug-in column. Several oblique serrations that mesh with the serration groove are respectively provided on the outer side wall of the plug-in column on both sides of the central groove. The screw hole is provided on the outer side wall of the plug-in column.

7. The steel beam / column end fixing assembly according to claim 6, characterized in that: The bottom of the restraining steel cylinder abuts against the top of the steel column.

8. The steel beam and steel column end fixing assembly according to claim 7, characterized in that: A mounting through hole is provided at the bottom of the horizontal square tube at the top of the pressing column for the pressing column to pass through.

9. A steel beam and steel column end fixing assembly according to claim 8, characterized in that: The angle between the lateral pressure slope and the vertical opposite direction is 15°-45°.

10. A steel beam and steel column end fixing assembly according to claim 9, characterized in that: A molten iron reinforcement layer is cast in the space between the central riser and the side shift plate seats on both sides. The molten iron reinforcement layer is formed by cooling the molten iron.

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