Heavy steel beam rooting structure and installation method of beam clamp

Abstract

The heavy steel beam rooting structure comprises a beam clamp unit and a rooting cross arm, the beam clamp unit comprises pressing plates and a large bottom plate, the pressing plates are connected with the large bottom plate, the pressing plates and the large bottom plate are located on the two sides of the rooting cross arm respectively, and the two pressing plates are pressed on the two sides of a steel beam flange respectively; and a base for bearing a load is mounted on the large bottom plate. According to the heavy steel beam rooting structure, after a load is transmitted to the base through the channel steel vertical rods, a bidirectional mechanical path is formed under the action of the beam clamp units, the longitudinal load is evenly diffused to the steel beam flange along the plane of the large bottom plate, and efficient bearing is achieved through the overall rigidity of the steel beam; when the large bottom plate is loaded and bent, the displacement direction of the connecting rods is restrained through the preset holes, the connecting rods are induced to generate an outward expansion trend through geometric deformation, and meanwhile the connecting rods at the pressing plates are driven to form an inward compression trend, so that the pressing force of the pressing plates on the steel beam flanges is increased, transverse self-locking reinforcement is achieved, and sliding and loosening are effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of steel beam rooting, and more specifically, to a heavy-duty steel beam rooting structure and an installation method of a beam clamp. Background Art

[0002] Steel structure buildings have been widely used in the modern construction field due to their advantages such as high strength, light weight, and convenient construction. In the steel structure system, the connection reliability between auxiliary equipment and the main structure is directly related to the overall safety and functional stability of the building system. Since the fireproof coating and anti-corrosion treatment processes have been completed during the prefabrication stage in the factory for steel structures, non-welding connection technologies need to be adopted during the construction process to protect the surface of the base material. Currently, mechanical clamps are commonly used in engineering practice as the connection method between auxiliary equipment and steel structure beams. They achieve load transfer through the dual actions of frictional engagement and mechanical locking, and have become a key technical means for the installation of mechanical and electrical pipeline supports and hangers, equipment bases, etc.

[0003] Chinese Patent CN208167994U discloses a beam clamp, which includes a clamp. The clamp includes a support part arranged horizontally, a fixing part arranged vertically, and a clamping part arranged above the support part and parallel to the support part. The support part, the fixing part, and the clamping part are of an integral structure, and a notch for clamping the steel beam is formed between the support part, the fixing part, and the clamping part. A threaded hole is provided on the clamping part, a bolt is arranged in the threaded hole, and a rack part is arranged on one side of the support part close to the clamping part. The beam clamp provided by this invention can be used to fix various types of steel beams, and increases the frictional force of the connection with the steel beam, making the connection structure with the steel beam firm, and having excellent tensile and shear resistance capabilities, solving the problem of the rooting of brackets or other building mechanical and electrical engineering with steel beams.

[0004] However, in the case of large load requirements, the beam clamp structure will fail due to excessive load, resulting in deformation of the U-shaped screw or the channel steel notch. Summary of the Invention

[0005] In order to overcome the problem that in the case of large load requirements, the beam clamp structure will fail due to excessive load, resulting in deformation of the U-shaped screw or the channel steel notch, the present invention provides a heavy-duty steel beam rooting structure and an installation method of a beam clamp.

[0006] The technical solution of the present invention is as follows: A heavy-duty steel beam rooting structure includes a beam clamp unit clamped to the steel beam. The beam clamp unit includes: Two pressing plates, and the inner sides of each pressing plate are respectively pressed against both sides of the steel beam flange; The large base plate, the outer side of the large base plate is connected to the outer side of the corresponding pressing plate through a fastening unit, the middle part of the large base plate is suspended and connected to the load, so that the large base plate bends downward under the action of the load, and the lower part of the fastening unit has a tendency to expand and the upper part has a tendency to compress, so as to enhance the pressing force of the inner side of the pressing plate on the flange of the steel beam.

[0007] In the present invention according to the above solution, the two pressing plates are symmetrically distributed on both sides of the large base plate.

[0008] In the present invention according to the above solution, it further includes a rooting cross arm, and the rooting cross arm passes through between the pressing plate and the large base plate; The rooting cross arm is located below the steel beam, so that the rooting cross arm supports on the outer side of the pressing plate; The rooting cross arm is located at the upper end of the large base plate and is separated from the load, so that the large base plate deforms under the action of the load.

[0009] In the present invention according to the above solution, the beam clamping unit further includes a wedge piece, and the wedge piece is arranged between the pressing plate and the rooting cross arm.

[0010] In the present invention according to the above solution, the thickness of the wedge piece is less than the thickness of the flange of the steel beam, and the outer side of the pressing plate is inclined towards the steel beam, so that the inner side of the pressing plate presses on the flange of the steel beam and its outer side presses on the wedge piece.

[0011] In the present invention according to the above solution, the thickness difference between the wedge piece and the flange of the steel beam is 2 - 5 mm.

[0012] In the present invention according to the above solution, the wedge piece is composed of a combination of steel plates with different thicknesses, and each steel plate is provided with a suitable mounting hole.

[0013] In the present invention according to the above solution, the pressing plate, the wedge piece and the large base plate are connected through the fastening unit, and the fastening unit includes four pairs, and the four pairs of fastening units are evenly distributed at the four edge positions of the large base plate. Two pairs of fastening units are located on the left side of the steel beam and are respectively distributed on the front and rear sides of the rooting cross arm, and the other two pairs of fastening units are located on the right side of the steel beam and are respectively distributed on the front and rear sides of the rooting cross arm.

[0014] In the present invention according to the above solution, the fastening unit includes a screw rod and a nut, and the screw rod and the nut cooperate to fasten the pressing plate, the wedge piece and the large base plate.

[0015] In the present invention according to the above solution, an installation pad is provided between the nut and the pressing plate, and an installation pad is provided between the nut and the large base plate.

[0016] In the present invention according to the above solution, round holes and oval holes are provided on both the pressing plate and the wedge piece to achieve position tolerance adjustment during installation.

[0017] In the present invention according to the above solution, a base for bearing loads is installed on the large bottom plate.

[0018] In the present invention according to the above solution, the load is installed in the middle of the large bottom plate, so that the two pressing plates are symmetrically distributed on both sides of the load.

[0019] In the present invention according to the above solution, the base includes a main board and a bending piece. The bending piece is connected to the main board. A through connection hole is provided on the bending piece for installing a vertical rod, and the main board is connected to the large bottom plate.

[0020] An installation method of a beam clamp for heavy steel beam rooting is applied to the heavy steel beam rooting structure described in any one of the above, and includes the following steps: S1. Select a combination of wedge pieces with a total thickness less than the thickness of the steel beam flange according to the thickness of the steel beam flange; S2. Place the wedge piece on the side of the steel beam flange, place the pressing plate above the wedge piece and the steel beam flange, and connect the pressing plate to the large bottom plate through a screw; S3. Adjust the positions of the pressing plate and the wedge piece so that the pressing plate is in direct contact with the steel beam flange and forms an inclined pressing state; S4. Fasten the screw through a nut so that the beam clamp unit is clamped on the steel beam; S5. Install the base for bearing loads on the large bottom plate. Under the action of the load, the expansion trend and compression trend generated by the screw due to the deformation of the large bottom plate are used to enhance the pressing force of the pressing plate.

[0021] In the present invention according to the above solution, in step S1, the thickness of the wedge piece is prepared by laser cutting and blanking, without bending or welding.

[0022] In the present invention according to the above solution, its beneficial effect is that in a heavy steel beam rooting structure of the present invention, after the load is transmitted to the base through the channel steel vertical rod, a two-way mechanical path is formed through the action of the beam clamp unit. The longitudinal load is evenly diffused along the plane of the large bottom plate to the steel beam flange, and the overall stiffness of the steel beam is utilized to achieve efficient load bearing; when the large bottom plate is bent under load, the preset holes in it restrict the displacement direction of the connecting rod, and through geometric deformation, an outward expansion trend is induced in the connecting rod, and at the same time, the connecting rod at the pressing plate is driven to form an inward compression trend, increasing the pressing force of the pressing plate on the steel beam flange, realizing transverse self-locking strengthening, and effectively preventing slipping and loosening. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the existing structure; Figure 2 It is the test curve of the destructive force and deformation amount of the present invention; Figure 3 It is the test curve of the destructive force and deformation amount of the existing structure; Figure 4 It is the structural schematic diagram of the present invention; Figure 5 It is the front view of the present invention; Figure 6 is Figure 5 the enlarged structural schematic diagram of part A in Figure 7 It is the force-bearing schematic diagram of the present invention.

[0024] In the figure, each reference numeral is as follows: 10. Beam clamp unit; 11. Pressure plate; 12. Large bottom plate; 13. Wedge; 14. Screw; 15. Nut; 16. Mounting pad; 20. Root cross bar; 30. Steel beam; 31. Steel beam flange; 40. Base; 41. Main board; 42. Bending part; 43. Vertical rod. Specific embodiments

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that steel structure buildings are widely used in the modern construction field due to their advantages such as high strength, light weight and convenient construction. In the steel structure system, the connection reliability between the auxiliary equipment and the main structure is directly related to the overall safety and functional stability of the building system. Since the fireproof coating and anti-corrosion treatment processes have been completed in the factory prefabrication stage of the steel structure, non-welding connection technology needs to be adopted during the construction process to protect the surface of the base material. At present, mechanical clamps are generally used as the connection method between the auxiliary equipment and the steel structure beam in engineering practice. It realizes load transfer through the dual actions of frictional bite and mechanical locking, and has become a key technical means for the installation of mechanical and electrical pipeline supports and hangers, equipment bases, etc.

[0027] Chinese Patent CN208167994U discloses a beam clamp, which includes a clamp. The clamp includes a horizontally arranged support part, a vertically arranged fixing part and a clamping part arranged above the support part and parallel to the support part. The support part, the fixing part and the clamping part are of an integral structure, and a notch for clamping the steel beam is formed between the support part, the fixing part and the clamping part. A threaded hole is opened on the clamping part, a bolt is arranged in the threaded hole, and a rack part is arranged on one side of the support part close to the clamping part. The beam clamp provided by this invention can be used to fix various types of steel beams, and increases the frictional force of the steel beam connection, making the connection structure with the steel beam firm, having excellent tensile and shear resistance, and solving the problem of the connection between the bracket or other building mechanical and electrical engineering and the steel beam.

[0028] However, when the load demand is large, the beam clamping structure will fail due to excessive load, resulting in deformation of the U-shaped screw or the channel steel notch.

[0029] As Figures 2 - 7 shown, this embodiment provides a heavy-duty steel beam rooting structure. After the load is transmitted to the base 40 through the channel steel vertical rod 43, a two-way mechanical path is formed through the action of the beam clamping unit 10. The longitudinal load is evenly diffused along the plane of the large base plate 12 to the steel beam flange 31, and the high-efficiency load-bearing is realized by using the overall stiffness of the steel beam 30. When the large base plate 12 is bent downward under load, the preset holes on it restrict the displacement direction of the connecting rod, and induce the connecting rod to have an outward expansion trend (F1) through geometric deformation. At the same time, it drives the connecting rod at the pressure plate 11 to form an inward compression trend (F2), increasing the pressing force of the pressure plate 11 on the steel beam flange 31, realizing transverse self-locking strengthening, and effectively preventing slipping and loosening. In the present invention, the direction of the outward expansion trend (F1) of the lower end of the connecting rod is parallel to the direction of the inward compression trend (F2) of the upper end of the connecting rod, and this direction is the tangent direction of the position where the lower end of the connecting rod is connected to the arc-shaped large base plate 12.

[0030] Specifically, the heavy-duty steel beam rooting structure includes a beam clamping unit 10 clamped to the steel beam. The beam clamping unit 10 includes two pressure plates 11 and a large base plate 12. The inner sides of each pressure plate 11 are respectively pressed against both sides of the steel beam flange 31. The outer side of the large base plate 12 is connected to the outer side of the corresponding pressure plate 11 through a fastening unit. The middle of the large base plate 12 is suspended and connected to the load, so that the large base plate 12 bends downward under the action of the load, and the lower part of the fastening unit has an expansion trend and the upper part has a compression trend to enhance the pressing force of the inner side of the pressure plate 11 on the steel beam flange 31.

[0031] Longitudinal load transfer: When subjected to the load F, the acting force is transmitted from the channel steel vertical rod 43 to the base 40. Since the base 40 and the large base plate 12 are connected, the acting force will be finally transmitted to the steel beam 30 through the beam clamping unit 10; Transverse self-locking enhancement: During the force transmission process, since the base 40 is located on the large base plate 12, when subjected to a certain load, the large base plate 12 will bend to a certain extent. Due to the limitation of the holes on the large base plate 12, the connection position will always maintain a state tangent to the large base plate 12. Therefore, during the deformation of the large base plate 12, the connecting rods on both sides will have an outward expansion trend, as Figure 7 shown by F1 above. Relatively, at the position of the screw 14 connecting the pressure plate 11 and the steel beam flange, there is an inward compression trend, as Figure 7 shown by F2 above. Therefore, the inward compression trend of the screw 14 will further compress the pressure plate 11 to make it in close contact with the steel beam flange. This process will have an amplifying effect on the pressure plate 11 pressing the steel beam flange 31, making the structure more firm.

[0032] It should be noted that the test results of the sample of the beam clamping unit 10 in this embodiment are as Figure 2 shown. From the above graph lines, it can be seen that the destructive force value of the beam clamping unit 10 in this embodiment can exceed 60 kN, and it does not break at 60 kN, but only the base 40 deforms.

[0033] In order to more clearly highlight the force value of the beam clamping unit 10 in this embodiment, we also conducted a comparative test on the commonly used existing beam clamping unit 10. The test results are as Figure 3 shown. It can be seen that the destructive force value of the existing beam clamping unit 10 is less than 36 kN. The failure mode is the notch failure of the channel steel.

[0034] In one embodiment, the two pressing plates 11 are symmetrically distributed on both sides of the large bottom plate 12, so that when the large bottom plate 12 is loaded and bends downward, the deformation amounts on both sides are the same.

[0035] The heavy-duty steel beam rooting structure further includes a rooting cross bar 20. The rooting cross bar 20 passes through between the pressing plate 11 and the large bottom plate 12, and the extending direction of the rooting cross bar 20 is perpendicular to the extending direction of the steel beam 30; the rooting cross bar 20 is located below the steel beam 30 so that the rooting cross bar 20 supports on the outside of the pressing plate 11; The rooting cross bar 20 is located at the upper end of the large bottom plate 12 and is separated from the load, so that the large bottom plate 12 deforms after being subjected to the load.

[0036] In one embodiment, the beam clamping unit 10 further includes a wedge piece 13, and the wedge piece 13 is arranged between the pressing plate 11 and the rooting cross bar 20.

[0037] Specifically, the thickness of the wedge piece 13 is less than the thickness of the steel beam flange 31. The pressing plate 11 is inclined towards the outside of the steel beam 30, so that the inner side of the pressing plate 11 presses on the steel beam flange 31, and its outer side presses on the wedge piece 13. The setting of the wedge piece 13 optimizes the contact state between the pressing plate 11 and the steel beam flange 31, ensures that the pressing plate 11 can directly contact the steel beam flange 31, and the pressing plate 11 is in an inclined state as a whole to ensure the direct pressing force of the pressing plate 11. And after the large bottom plate 12 is subjected to the acting force F of the load and is transmitted to the pressing plate 11 through the beam clamping unit 10, the pressing plate 11 needs to increase the acting force with the steel beam flange 31 through deformation. This thickness difference can provide deformation space for this deformation and does not affect the interaction force between the pressing plate 11 and the steel beam flange 31 and the rooting cross bar 20.

[0038] Specifically, the thickness difference between the wedge 13 and the steel beam flange 31 is 2-5 mm, which will not affect the force of the pressure plate 11 on the steel beam flange 31 and the rooting cross arm 20, and at the same time can ensure the deformation space of the pressure plate 11. The thickness difference between the wedge 13 and the steel beam flange 31 forces the pressure plate 11 to produce an inclination angle, and converts the pre-tightening force of the screw 14 into the clamping force of the pressure plate 11 through the lever effect, thereby increasing the clamping force of the pressure plate 11 and the friction between the pressure plate 11 and the steel beam flange 31. When the steel beam 30 is subjected to load and produces micro-deformation, the inclined sliding between the wedge 13 and the pressure plate 11 can adaptively adjust the contact gap, reduce the loss of the clamping force of the pressure plate 11, and improve the stability of the beam clamp unit 10 in long-term use.

[0039] It should be noted that the wedge 13 is composed of a plurality of steel plates of different thicknesses, and each steel plate is provided with a matching mounting hole.

[0040] In one embodiment, the pressing plate 11, the wedge 13 and the large bottom plate 12 are connected by fastening units. The fastening units include four pairs, and the four pairs of fastening units are evenly distributed at the four edge positions of the large bottom plate 12, two pairs of fastening units are located on the left side of the steel beam 30 and are respectively distributed on the front and rear sides of the rooting cross arm 20, and the other two pairs of fastening units are located on the right side of the steel beam 30 and are respectively distributed on the front and rear sides of the rooting cross arm 20.

[0041] The fastening unit includes a screw rod 14 and a nut 15, which cooperate to fasten the pressing plate 11, the wedge 13 and the large bottom plate 12. The precise cooperation between the nut 15 and the screw rod 14 ensures a tight connection between the components, thereby significantly enhancing the overall stability of the rooting structure.

[0042] A mounting pad 16 is provided between the nut 15 and the pressure plate 11, and between the nut 15 and the large bottom plate 12. The mounting pad 16 not only provides additional cushioning and support, but also ensures that the nut 15 will not cause damage to the pressure plate 11 and the large bottom plate 12 during the tightening process, further improving the reliability and durability of the connection.

[0043] The arrangement of the screw rod 14, the nut 15 and the mounting pad 16 ensures that when the large bottom plate 12 bends, the nut 15 on the screw rod 14 will always remain tangent to the large bottom plate 12; therefore, during the deformation of the large bottom plate 12, the screw rods 14 on both sides will tend to expand outwards, such as Figure 7 On F1, relatively, the position of the screw 14 connecting the pressure plate 11 and the steel beam flange 31 has a tendency to be compressed inwards, such as Figure 7 Therefore, this process will have an amplifying effect on the pressure plate 11 pressing the steel beam flange 31, thereby making the structure more solid.

[0044] In one embodiment, to ensure that the beam clamping unit 10 has certain adjustable performance, round holes and oval holes are provided on both the pressure plate 11 and the wedge 13. The setting of the oval holes enables the beam clamping unit 10 to have a certain error tolerance to cope with the machining deviation of a certain component. Specifically, the round hole on the pressure plate 11 is connected to the fastening unit located on the front side of the root cross arm 20, and the oval hole on the pressure plate 11 is connected to the fastening unit located on the rear side of the root cross arm 20. Similarly, the round hole on the wedge 13 is connected to the fastening unit located on the front side of the root cross arm 20, and the oval hole on the wedge 13 is connected to the fastening unit located on the rear side of the root cross arm 20.

[0045] In one embodiment, a base 40 for bearing the load is installed on the large base plate 12. The load is installed in the middle of the large base plate 12, so that the two pressure plates 11 are symmetrically distributed on both sides of the load. The bending deformations on the left and right sides of the large base plate 12 are the same when stressed, so that the beam clamping unit 10 can disperse the stress more evenly when bearing the load, thereby improving the bearing capacity.

[0046] The base 40 includes a main board 41 and a bending part 42. The bending part 42 is connected to the main board 41, and the main board 41 is connected to the large base plate 12. A through connection hole is provided on the bending part 42, and the through connection hole is used for installing the vertical rod 43. When installing the vertical rod 43, the user or installer only needs to align the vertical rod 43 with the through connection hole and use a suitable fastening unit (such as bolts, nuts 15, etc.) to pass through the hole position, then the stable connection between the vertical rod 43 and the base 40 can be realized. This not only simplifies the installation process, improves the installation efficiency, but also ensures the reliability and stability of the connection between the vertical rod 43 and the base 40.

[0047] An installation method for a beam clamp for heavy steel beam rooting, which is applied to the heavy steel beam rooting structure of any of the above embodiments, includes the following steps: S1. Select a wedge combination with a total thickness less than the thickness of the steel beam flange according to the thickness of the steel beam flange; S2. Place the wedge on the side of the steel beam flange, place the pressure plate above the wedge and the steel beam flange, and connect the pressure plate to the large base plate through a screw; S3. Adjust the positions of the pressure plate and the wedge so that the pressure plate is in direct contact with the steel beam flange and forms an inclined pressing state; S4. Fasten the screw through the nut so that the beam clamping unit clamps on the steel beam; S5. Install the base for bearing the load on the large base plate. Under the action of the load, the expansion trend and compression trend generated by the screw due to the deformation of the large base plate are used to enhance the pressing force of the pressure plate.

[0048] Specifically, the load (F) is sequentially transmitted to the base, the large base plate and the pressure plate, and finally borne by the steel beam; Among them, the deformation of the large base plate causes the lower part of the screw to have an expansion trend (F1) and the upper part to have a compression trend (F2), forming a self-reinforcing compression mechanism and improving the structural load resistance.

[0049] In step S1, the thickness of the wedge piece is prepared by laser cutting blanking without bending or welding.

[0050] Without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Variations, modifications, substitutions, and variations made by those of ordinary skill in the art to the above embodiments are all within the protection scope of the present disclosure.

Claims

1. A heavy steel beam rooting structure, characterized in that, It includes a beam clamping unit clamped to a steel beam. The beam clamping unit includes: Two pressing plates, and the inner sides of each pressing plate are respectively pressed against both sides of the flange of the steel beam; A large bottom plate, the outer side of the large bottom plate is connected to the outer side of the corresponding pressing plate through a fastening unit, the middle part of the large bottom plate is suspended and connected to the load, so that the large bottom plate bends downward under the action of the load, and the lower part of the fastening unit has a tendency to expand and the upper part has a tendency to compress, so as to enhance the pressing force of the inner side of the pressing plate on the flange of the steel beam.

2. The root structure of a heavy steel beam according to claim 1, characterized in that, The two pressing plates are symmetrically distributed on both sides of the large bottom plate.

3. A heavy steel beam rooting structure according to claim 1 or 2, characterized in that, It also includes a root cross bar which passes through between the pressing plate and the large bottom plate; The root cross bar is located below the steel beam so that the root cross bar supports on the outer side of the pressing plate; The root cross bar is located at the upper end of the large bottom plate and is separated from the load, so that the large bottom plate deforms under the action of the load.

4. A heavy steel beam rooting structure according to claim 3, characterized in that: The beam clamping unit also includes a wedge piece which is arranged between the pressing plate and the root cross bar.

5. A root structure of a heavy steel beam according to claim 4, characterized in that, The thickness of the wedge piece is less than the thickness of the flange of the steel beam, and the outer side of the pressing plate inclines towards the steel beam, so that the inner side of the pressing plate is pressed against the flange of the steel beam and the outer side is pressed against the wedge piece.

6. A heavy steel beam rooting structure according to claim 4 or 5, characterized in that: The pressing plate, the wedge piece and the large bottom plate are connected through the fastening unit. The fastening unit includes four pairs, and the four pairs of fastening units are evenly distributed at the four edge positions of the large bottom plate. Two pairs of fastening units are located on the left side of the steel beam and are respectively distributed on the front and rear sides of the root cross bar, and the other two pairs of fastening units are located on the right side of the steel beam and are respectively distributed on the front and rear sides of the root cross bar.

7. A heavy-duty steel beam rooting structure according to claim 6, characterized in that, The fastening unit includes a screw rod and a nut, and the screw rod and the nut cooperate to fasten the pressing plate, the wedge piece and the large bottom plate.

8. A heavy steel beam rooting structure according to claim 1, 2, 4, 5 or 7, characterized in that: A base for bearing the load is installed on the large bottom plate.

9. The root structure of a heavy steel beam according to claim 8, characterized in that, The load is installed in the middle of the large bottom plate, so that the two pressing plates are symmetrically distributed on both sides of the load.

10. An installation method of a beam clamp for the root connection of a heavy steel beam, characterized in that, When applied to the heavy steel beam rooting structure as described in any one of claims 1-9, it includes the following steps: S1. Select a combination of wedge pieces with a total thickness less than that of the flange of the steel beam according to the thickness of the flange of the steel beam; S2. Place the wedge piece on the side of the flange of the steel beam, place the pressing plate above the wedge piece and the flange of the steel beam, and connect the pressing plate to the large bottom plate through a screw rod; S3. Adjust the positions of the pressing plate and the wedge piece so that the pressing plate is in direct contact with the flange of the steel beam and forms an inclined pressing state; S4. Fasten the screw rod with a nut so that the beam clamping unit is clamped on the steel beam; S5. Install the base for bearing the load on the large bottom plate. Under the action of the load, the expansion tendency and compression tendency generated by the screw rod caused by the deformation of the large bottom plate are used to enhance the pressing force of the pressing plate.

Images