A device for hoisting and positioning a ribbed steel beam and installing a splint and its construction method

Abstract

The present invention relates to the technical field of building construction, and particularly relates to a device for hoisting and positioning a ribbed steel beam and installing a splint, and a construction method thereof. A device for hoisting and positioning a ribbed steel beam and installing a splint includes a sling and a steel beam, and further includes a set of hoisting fixture assemblies, a set of steel beam positioning fixture assemblies, and a splint installation assembly. The hoisting fixture assemblies are symmetrically arranged on both sides of the steel beam and are connected by adjustable connecting rods. The steel beam positioning fixture assemblies are arranged on the side of the hoisting fixture assemblies away from the steel beam and can rotate relative to the hoisting fixture assemblies. The splint installation assembly is slidably arranged below the hoisting fixture assemblies and the steel beam positioning fixture assemblies. The structure of this device integrates functional requirements such as steel beam hoisting, steel beam positioning, and splint installation, realizing the multi-function of the device. This construction method effectively reduces the installation difficulty of large-sized steel splints, greatly improves the installation efficiency of steel beam hoisting and steel splints, and at the same time reduces the safety risks of workers in high-intensity operations.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a device and a construction method for hoisting and positioning a ribbed steel beam and installing a splint. Background Art

[0002] In current steel structure buildings, the H-shaped steel beam is the most common component, which is named after its cross-section being in the shape of "H". The design theory of the H-shaped steel beam is mature and its mechanical properties are excellent. During construction, a lifting device is required to hoist the H-shaped steel beam to a designated position, install steel splints on both sides of the web of the H-shaped steel beam, and tighten and fix them with high-strength bolts.

[0003] Currently, there are mainly four ways to hoist the H-shaped steel beam: The first way is to hoist the H-shaped steel beam after binding it with steel wires and lifting chains. When the steel wires and lifting chains are not firmly bound or the steel wires and lifting chains are damaged and broken, it is easy to cause safety accidents. Moreover, when hoisting with this method, the H-shaped steel beam needs to be lifted first to bind the steel wires and lifting chains, so the hoisting efficiency is low; The second way is to weld lifting lugs on the upper surface of the H-shaped steel beam. Before hoisting, the lifting lugs need to be welded on the upper flange surface of the H-shaped steel beam, and after hoisting and positioning, the lifting lugs need to be cut. Both the welding and cutting processes of this method need to be completed manually, and it damages the anti-corrosion surface layer of the H-shaped steel beam, requiring subsequent treatment, which increases the construction process; The third way is to open a hoisting hole on the upper flange of the H-shaped steel beam, and the lifting hook passes through the hoisting hole during hoisting. This way has a certain weakening effect on the mechanical properties of the H-shaped steel beam, especially more obvious for the narrow flange H-shaped steel beam; The fourth way is to use a hoisting fixture, but its function is relatively single, only used for hoisting the H-shaped steel beam, and it is in point contact with the H-shaped steel beam. When hoisting a large-sized H-shaped steel beam, it is easy to cause damage and its reliability is not high.

[0004] When installing the steel splint after hoisting the H-shaped steel beam to the designated position, the traditional method is to install it by manual brute force. However, since the steel splint is heavy, especially for some H-shaped steel beams with larger sizes, the steel splint will weigh dozens or even hundreds of kilograms. It is impossible to install it in place solely by manpower and usually requires multiple lifting devices. In addition, the operating space for installing the steel splint at high altitude is limited, the labor intensity of workers is high, the installation efficiency is low and there are certain safety hazards; Currently, there are devices and methods for sliding and positioning the steel splint by placing it between the upper and lower flanges, but the situation where the H-shaped steel beam has stiffening ribs is not considered; At the same time, no matter which method, since the H-shaped steel beam is in a suspended state and cannot form a strong connection with other components, it is easy to shake, further increasing the difficulty of installing the steel splint. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a device for hoisting and positioning a ribbed steel beam and installing a splint, as well as a construction method thereof, which realizes the multi-functional use of the device, improves the hoisting efficiency of the H-shaped steel beam and the installation efficiency of the steel splint, reduces the damage to the H-shaped steel beam, and reduces the construction safety risk and the labor intensity of workers.

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

[0007] A device for hoisting and positioning a ribbed steel beam and installing a splint includes a sling and a steel beam. The steel beam includes a steel beam upper flange, a steel beam stiffener, a steel beam lower flange and a steel beam web. It also includes a set of hoisting fixture components, a set of steel beam positioning fixture components and a splint installation component. The hoisting fixture components are symmetrically arranged on both sides of the steel beam upper flange and are connected by adjustable connecting rods. The steel beam positioning fixture components are arranged on the side of the hoisting fixture components away from the steel beam upper flange and can rotate relative to the hoisting fixture components. The splint installation component is slidably arranged below the hoisting fixture components and the steel beam positioning fixture components.

[0008] Based on the above device for hoisting and positioning a ribbed steel beam and installing a splint, each hoisting fixture component includes a horizontal folding plate, a horizontal plate, a hoisting stiffening plate, a hoisting ear plate and a cantilever frame I.

[0009] The horizontal folding plate and the horizontal plate are connected, and a groove is provided in the middle of the horizontal plate. The horizontal folding plate and the horizontal plate form a T-shaped groove for clamping the steel beam, and a hoisting stiffening plate is provided on the side away from the T-shaped groove. The cantilever frame I is in an "L" shape and is embedded in the space formed by the horizontal folding plate, the horizontal plate and the hoisting stiffening plate. The hoisting stiffening plate is located above the cantilever frame I. A hoisting ear plate is provided on the upper surface of the horizontal folding plate, and an inclined hoisting hole for sling hoisting and a connection hole for the adjustable connecting rod to pass through are provided on the hoisting ear plate.

[0010] Based on the above device for hoisting and positioning a ribbed steel beam and installing a splint, each steel beam positioning fixture component includes a base plate I, a base plate II, a positioning stiffening plate and a cantilever frame II. During construction, the steel beam positioning fixture components are arranged on both sides of the component to be connected.

[0011] The base plate I and the base plate II are connected and form a horizontal groove for clamping the component to be connected. A positioning stiffening plate is provided on the side away from the horizontal groove. The cantilever frame II is in an "L" shape and is embedded in the space formed by the base plate I, the base plate II and the positioning stiffening plate. The positioning stiffening plate is located above the cantilever frame II.

[0012] Based on the above device for hoisting and positioning a ribbed steel beam and installing a splint, the splint installation component includes a roller support, a U-shaped buckle, a rotating handle, a splint fixing frame, a splint support plate and a pin shaft.

[0013] A roller support is arranged at the middle position above the splint fixing frame, U-shaped buckles for fixing steel splints are arranged at both ends above the splint fixing frame, a splint support plate is arranged below the splint fixing frame through a pin shaft connection, and a rotating handle is arranged on the roller support.

[0014] On the basis of the above-mentioned ribbed steel beam hoisting and positioning and splint installation device, an inner groove one is arranged at one end of the cantilever frame one away from the hoisting stiffening plate, an inner groove two is arranged at one end of the cantilever frame two away from the positioning stiffening plate, and the inner groove one and the inner groove two cooperate with each other to form a slide rail for the roller support of the splint installation component to slide.

[0015] On the basis of the above-mentioned ribbed steel beam hoisting and positioning and splint installation device, the hoisting fixture assembly further includes a fixing rod, the fixing rod is arranged on the cantilever frame one between the two hoisting stiffening plates, the steel beam positioning fixture assembly further includes a fixing collar, the fixing collar is arranged on the cantilever frame two between the two positioning stiffening plates, and the fixing collar can be sleeved on the fixing rod.

[0016] On the basis of the above-mentioned ribbed steel beam hoisting and positioning and splint installation device, hinges are arranged at the intersection of the "L" shape of the cantilever frame one and the intersection of the "L" shape of the cantilever frame two, and the hinges of the two cooperate with each other to rotatably connect the hoisting fixture assembly and the steel beam positioning fixture assembly, and the range of the rotation angle is 0° - 180°.

[0017] On the basis of the above-mentioned ribbed steel beam hoisting and positioning and splint installation device, both the cross plate and the base plate two are provided with adjusting bolt holes for installing fastening bolts.

[0018] On the basis of the above-mentioned ribbed steel beam hoisting and positioning and splint installation device, the T-shaped groove includes a T-shaped horizontal groove and a T-shaped vertical groove, the T-shaped horizontal groove catches the upper flange of the steel beam, and the T-shaped vertical groove catches the stiffening rib of the steel beam.

[0019] A construction method of a ribbed steel beam hoisting and positioning and splint installation device uses the ribbed steel beam hoisting and positioning and splint installation device described in any one of the above, and the specific steps are as follows:

[0020] Step 1: Adjust the length of the adjustable connecting rod, connect the hoisting fixture assembly and install it on both sides of the steel beam, tighten the bottom fastening bolts, and the fixing collar of the steel beam positioning fixture assembly is sleeved on the fixing rod of the hoisting fixture assembly;

[0021] Step 2: Adjust the size of the splint fixing frame, embed the steel splint into it and fix it, and pre-align the bolt holes on the steel splint and the steel beam web;

[0022] Step 3: Pass the sling through the diagonal hoisting hole on the hoisting fixture assembly, and use a lifting device to transport the steel beam to the designated position;

[0023] Step 4: Open the fixed collar of the steel beam positioning fixture assembly, rotate the steel beam positioning fixture assembly 180° around the hinge, embed the component to be connected into the horizontal groove, and tighten the fastening bolt at the bottom of the steel beam positioning fixture assembly;

[0024] Step 5: Pull the splint installation assembly to move it along the length direction of the steel beam, align the bolt holes on the steel splint with the bolt holes to be connected, and insert steel bars into the bolt holes for positioning;

[0025] Step 6: Rotate the rotating handle to adjust the traveling direction of the splint installation assembly, and push the splint installation assembly to move along the direction perpendicular to the upper flange of the steel beam, so that the steel splint is close to the web of the steel beam;

[0026] Step 7: Lift the U-shaped buckle at the upper end of the splint fixing frame upward, make the steel splint close to the web of the steel beam, insert bolts into the bolt holes, and fix them;

[0027] Step 8: Return the splint installation assembly to its original position, loosen the fastening bolts of each part, remove the device, and complete the hoisting of the steel beam and the installation of the steel splint.

[0028] Compared with the prior art, the advantages of the present invention are as follows:

[0029] 1. The combined action of the T-shaped groove of the hoisting fixture assembly and the fastening bolt in the present invention not only ensures the vertical force during the hoisting process but also ensures that the device does not slip along the length direction of the steel beam, realizing a reliable connection between the device and the steel beam and ensuring the safety of hoisting; the steel beam positioning fixture assembly in the present invention can realize the rapid positioning and temporary fixation of the steel beam, avoid the shaking of the steel beam during the installation of the steel splint, facilitate the operation of workers, improve the installation efficiency, and reduce the safety risk.

[0030] 2. The designed hinge in the present invention can realize the rotational connection between the hoisting fixture assembly and the steel beam positioning fixture assembly. When the device is in an idle state or during the hoisting of the steel beam, the hoisting fixture assembly and the steel beam positioning fixture assembly are folded together with an included angle of 0°; during construction, the hoisting fixture assembly and the steel beam positioning fixture assembly rotate 180° relative to each other; it not only facilitates the operation of workers but also improves the work efficiency, avoiding the time waste of waiting during the disassembly and assembly of the hoisting fixture assembly and the steel beam positioning fixture assembly.

[0031] 3. The splint installation assembly in the present invention is slidably connected and its direction is adjustable, which is convenient for operation. At the same time, the size of the splint fixing frame is adjustable, and it is applicable to the installation of steel splints of various sizes without setting multiple splint fixing frames, reducing the manufacturing and use costs of the splint installation assembly; at the same time, the roller support is embedded in the slide rail formed by the built-in groove one and the built-in groove two, and pushing the splint installation assembly can install the steel splint and the web of the steel beam, eliminating the process of manually moving the steel splint, reducing the labor intensity of workers, and at the same time reducing the safety risk of high-intensity operations of workers.

[0032] 4. The present invention integrates functions such as hoisting steel beams, positioning steel beams, and installing splints with a relatively simple structure, achieving multiple functions of the device. Especially when used for large-sized steel beams with stiffeners, it effectively reduces the installation difficulty of large-sized steel splints, greatly improves the installation efficiency of steel beams and steel splints, and the device can be reused, effectively reducing the usage cost. The construction method of the present invention is simple to operate, enabling workers to quickly learn and start operating, greatly improving the construction efficiency, ensuring the construction quality, reducing the occurrence of construction risk accidents, and greatly enhancing the safety during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

[0034] Figure 1 is a schematic diagram of the idle state of the device for hoisting and positioning ribbed steel beams and installing splints;

[0035] Figure 2 is a schematic diagram of the device for hoisting and positioning ribbed steel beams and installing splints during the hoisting of steel beams;

[0036] Figure 3 is a schematic diagram of the device for hoisting and positioning ribbed steel beams and installing splints during the positioning of steel beams and the installation of steel splints;

[0037] Figure 4 is Figure 1 an enlarged schematic diagram of position A shown in;

[0038] Figure 5 is Figure 1 an enlarged schematic diagram of position B shown in;

[0039] Figure 6 is a schematic diagram of the hoisting fixture assembly;

[0040] Figure 7 is a schematic diagram of the steel beam positioning fixture assembly;

[0041] Figure 8 is a schematic diagram of the splint installation assembly;

[0042] Wherein: 1. Adjustable connecting rod; 2. Suspension cable; 3. Steel splint; 4. Steel beam; 5. Cantilever frame 1; 6. Cantilever frame 2; 7. Lifting fixture assembly; 8. Splint installation assembly; 9. Upper flange of the component to be connected; 10. Web of the component to be connected; 11. Stiffener of the component to be connected; 12. Lower flange of the component to be connected; 13. Upper flange of the steel beam; 14. Stiffener of the steel beam; 15. Lower flange of the steel beam; 16. Fixed rod; 17. Fixed collar; 18. Hinge; 19. Oblique lifting hole; 20. Lifting stiffening plate; 21. T-shaped groove; 22. Fastening bolt; 23. Built-in groove 1; 24. Built-in groove 2; 25. Horizontal groove; 26. Alignment stiffening plate; 27. Roller support; 28. U-shaped buckle; 29. Rotating handle; 30. Splint fixing frame; 31. Splint support plate; 32. Pin shaft; 33. Steel beam alignment fixture assembly; 34. Horizontal folding plate; 35. Horizontal plate; 36. Lifting ear plate; 37. Connection hole; 38. Substrate 1; 39. Substrate 2. Detailed implementation mode

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0044] Aiming at the problems of difficult hoisting of H-shaped steel beams and installation of steel splints in the prior art, the present invention provides the following technical solutions: A device for hoisting, aligning and installing splints of a ribbed steel beam, see Figures 1 to 8, including a sling 2 and a steel beam 4. The steel beam 4 includes a steel beam upper flange 13, steel beam stiffeners 14, a steel beam lower flange 15 and a steel beam web. The steel beam stiffeners 14 and the steel beam web are perpendicularly arranged, and the steel beam upper flange 13 and the steel beam lower flange 15 are arranged in parallel at both ends of the steel beam stiffeners 14 and the steel beam web. Bolt holes are provided on the steel beam web. It further includes a set of hoisting fixture assemblies 7, a set of steel beam positioning fixture assemblies 33 and a splint installation assembly 8. A set of hoisting fixture assemblies 7 includes 2 hoisting fixture assemblies 7, and a set of steel beam positioning fixture assemblies 33 includes 2 steel beam positioning fixture assemblies 33. The hoisting fixture assemblies 7 are symmetrically arranged on both sides of the steel beam upper flange 13 and are connected by adjustable connecting rods 1. The steel beam positioning fixture assemblies 33 are arranged on the side of the hoisting fixture assemblies 7 away from the steel beam upper flange 13 and can rotate relative to the hoisting fixture assemblies 7. When the device is in the idle state, the hoisting fixture assemblies 7 and the steel beam positioning fixture assemblies 33 are folded in half along the hinge 18, with an included angle of 0° between them, and the fixed collar 17 of the steel beam positioning fixture assembly 33 is sleeved on the fixed rod 16 of the hoisting fixture assembly 7; the splint installation assembly 8 is slidably arranged below the hoisting fixture assemblies 7 and the steel beam positioning fixture assemblies 33. During the hoisting process of the steel beam 4, the hoisting fixture assemblies 7 are fixed on both sides of the steel beam 4, and the two side hoisting fixture assemblies 7 are connected by adjustable connecting rods 1; the sling 2 is connected to the diagonal hoisting holes 19 on the hoisting fixture assemblies 7; the position of the steel beam positioning fixture assembly 33 is the same as that in the idle state.

[0045] During the positioning of the steel beam 4 and the installation of the steel splint 3, the hoisting fixture assemblies 7 are fixed on both sides of the steel beam 4, and the two side hoisting fixture assemblies 7 are connected by adjustable connecting rods 1; the steel beam positioning fixture assemblies 33 are fixed on both sides of the component to be connected. The component to be connected can be another steel beam 4 of the same size, or a bracket of a steel column or a concrete column; the splint installation assembly 8 is suspended below the hoisting fixture assemblies 7 and the steel beam positioning fixture assemblies 33 and moves its position by pushing and pulling to achieve the installation of the steel splint 3.

[0046] In this embodiment, each hoisting fixture assembly 7 includes a horizontal folding plate 34, a horizontal plate 35, a hoisting stiffening plate 20, a hoisting ear plate 36 and a cantilever frame I 5.

[0047] The folding plate 34 and the horizontal plate 35 are connected, and a groove is provided in the middle of the horizontal plate 35. The folding plate 34 and the horizontal plate 35 form a T-shaped groove 21 for clamping the steel beam 4, and a hoisting stiffening plate 20 is provided on one side away from the T-shaped groove 21. The hoisting stiffening plate 20 is used to increase the stiffness of this part. The first cantilever frame 5 is in an "L" shape and is embedded in the space formed by the folding plate 34, the horizontal plate 35 and the hoisting stiffening plate 20. The hoisting stiffening plate 20 is located above the first cantilever frame 5. The first cantilever frame 5 is perpendicular to the length direction of the steel beam 4. A hoisting ear plate 36 is provided on the upper surface of the folding plate 34. An inclined hoisting hole 19 for hoisting with a sling 2 and a connection hole 37 for the adjustable connecting rod 1 to pass through are provided on the hoisting ear plate 36. By adjusting the length of the adjustable connecting rod 1, the distance between the two hoisting fixture assemblies 7 can be adapted to the steel beam 4 to be processed. The adjustable connecting rod 1 passes through the connection holes 37 of the two hoisting fixture assemblies 7 to connect them, so that the steel beam 4 is evenly stressed during hoisting and the construction safety is improved. An inclined hoisting hole 19 is provided on the hoisting fixture assembly 7 for connecting the sling 2 for hoisting. Hoisting can be completed without opening hoisting holes on the upper flange 13 of the H-shaped steel beam. This method will not weaken the stress performance of the H-shaped steel beam 4 to ensure the quality of the H-shaped steel beam 4 during use.

[0048] By adopting the above technical solutions, the overall structure of the hoisting fixture assembly 7 is simple and easy to use. The hoisting ear plate 36 is provided with both a connection hole 37 and an inclined hoisting hole 19, which can realize reliable connection between the hoisting fixture assemblies 7 on both sides of the steel beam 4 and is also convenient for hoisting. Through the combined action of the T-shaped groove 21 and the fastening bolt 22, the hoisting fixture assembly 7 forms a reliable connection with the steel beam 4, improving hoisting safety and ensuring the safety of personnel and steel beam materials.

[0049] In this embodiment, during construction, the steel beam positioning fixture assembly 33 is arranged on both sides of the component to be connected and is connected to the hoisting fixture assembly 7 through a hinge 18 along the length direction of the component to be connected. Each steel beam positioning fixture assembly 33 includes a first substrate 38, a second substrate 39, a positioning stiffening plate 26 and a second cantilever frame 6. When the component to be connected is another steel beam 4 of the same size, the component to be connected includes an upper flange 9 of the component to be connected, a web 10 of the component to be connected, a stiffening rib 11 of the component to be connected and a lower flange 12 of the component to be connected.

[0050] The first substrate 38 and the second substrate 39 are connected and form a horizontal groove 25 for clamping the component to be connected. The horizontal groove 25 is used to clamp the upper flange 9 of the component to be connected. A positioning stiffening plate 26 is provided on one side away from the horizontal groove 25. The positioning stiffening plate 26 is used to increase the stiffness of this part. The second cantilever frame 6 is in an "L" shape and is embedded in the space formed by the first substrate 38, the second substrate 39 and the positioning stiffening plate 26. The positioning stiffening plate 26 is located above the second cantilever frame 6. The second cantilever frame 6 is perpendicular to the length direction of the component to be connected.

[0051] By adopting the above technical solution, the overall structure of the steel beam positioning fixture assembly 33 is simple, and a reliable connection is formed with the to-be-connected member and the hoisting fixture assembly 7, so that the steel beam 4 can be quickly positioned after being hoisted to the designated position, and a connection with a certain strength is formed, facilitating the connection of the steel beam 4 and the installation of the steel splint 3.

[0052] In this embodiment, the splint installation assembly 8 includes a roller support 27, a U-shaped buckle 28, a rotating handle 29, a splint fixing frame 30, a splint support plate 31 and a pin shaft 32.

[0053] A roller support 27 is arranged at the middle position above the splint fixing frame 30. Two rollers are arranged at the upper end of the roller support 27, and the rollers can be embedded in the built-in groove one 23 and the built-in groove two 24. The roller support 27 and the rollers are rotatably connected; a plurality of pin holes adapted to the pin shaft 32 are arranged at the lower ends of the two side frames of the splint fixing frame 30; U-shaped buckles 28 for fixing the steel splint 3 are arranged at both ends above the splint fixing frame 30. The U-shaped buckles 28 are used to fix the steel splint 3. The splint support plate 31 is connected below the splint fixing frame 30 through the pin shaft 32. The position of the splint support plate 31 can be adjusted through the cooperation of the pin shaft 32 and different pin holes to be applicable to steel splints 3 of different heights; no fixing and limiting devices are arranged on the left and right sides of the splint fixing frame 30 to be applicable to steel splints 3 of different widths; a rotating handle 29 is arranged on the roller support 27, which is used to rotate the roller support 27 when installing the steel splint 3, so as to realize the movement of the entire splint fixing frame 30 in different directions.

[0054] By adopting the above technical solution, the overall structure of the splint installation assembly 8 is simple, and it is slidably connected with the hoisting fixture assembly 7 and the steel beam positioning fixture assembly 33, facilitating the movement of the steel splint 3, and the sliding direction of the splint installation assembly 8 is adjustable, facilitating the installation of the steel splint 3.

[0055] In this embodiment, a built-in groove one 23 is arranged at one end of the cantilever frame one 5 away from the hoisting stiffening plate 20, and a built-in groove two 24 is arranged at one end of the cantilever frame two 6 away from the positioning stiffening plate 26. The built-in groove one 23 and the built-in groove two 24 cooperate with each other to form a slide rail for the roller support 27 of the splint installation assembly 8 to slide. The rollers of the roller support 27 can be embedded in the slide rail formed by the built-in groove one 23 and the built-in groove two 24, driving the splint fixing frame 30 to move, facilitating the easy transportation of the steel splint 3 during construction, reducing the labor intensity of workers and improving the construction efficiency.

[0056] In this embodiment, the hoisting fixture assembly 7 further includes a fixing rod 16, which is welded at the edge of the first cantilever frame 5 between two hoisting stiffening plates 20. The steel beam positioning fixture assembly 33 further includes a fixing collar 17, which is hinged at the edge of the second cantilever frame 6 between two positioning stiffening plates 26. Both the fixing rod 16 and the fixing collar 17 are arranged at the edge, so that the fixing collar 17 can be conveniently sleeved on the fixing rod 16 when the device is in the idle state or during the hoisting process of the steel beam 4, realizing the fixed connection between the two parts of the hoisting fixture assembly 7 and the steel beam positioning fixture assembly 33, and effectively avoiding the shaking of the steel beam positioning fixture assembly 33, thereby preventing device damage or worker injury. Through the cooperation of the hinge 18 with the fixing rod 16 and the fixing collar 17, a reliable connection between the hoisting fixture assembly 7 and the steel beam positioning fixture assembly 33 is achieved.

[0057] In this embodiment, hinges 18 are provided at the intersection of the "L" shape of the first cantilever frame 5 and the intersection of the "L" shape of the second cantilever frame 6, realizing the rotatable connection between the two parts. The hinges 18 of the two cooperate with each other to make the hoisting fixture assembly 7 and the steel beam positioning fixture assembly 33 rotatably connected, and the range of the rotation angle is 0° - 180°. When the device is in the idle state or during the hoisting process of the steel beam 4, the included angle between the hoisting fixture assembly 7 and the steel beam positioning fixture assembly 33 is 0°. In the working state, the steel beam positioning fixture assembly 33 rotates 180° relative to the hoisting fixture assembly 7, so that the cross plate 35 and the second base plate 39 are on the same horizontal line, and the first cantilever frame 5 and the second cantilever frame 6 are spliced and cooperated to form a slide rail.

[0058] In this embodiment, both the cross plate 35 and the second base plate 39 are provided with adjusting bolt holes for installing fastening bolts 22. When the hoisting fixture assembly 7 clamps the upper flange 13 of the steel beam and the steel beam positioning fixture assembly 33 clamps the upper flange 9 of the to-be-connected member, they are clamped by the fastening bolts 22 to improve the firmness during construction, so as to avoid safety accidents caused by the falling off of the steel beam 4 or the to-be-connected member due to insufficient clamping.

[0059] In this embodiment, the T-shaped groove 21 includes a T-shaped horizontal groove and a T-shaped vertical groove. The T-shaped horizontal groove clamps the upper flange 13 of the steel beam, and the T-shaped vertical groove clamps the steel beam stiffener 14, improving the fastening and stability of clamping the steel beam 4, so as to ensure safe construction during the hoisting or installation of the steel beam 4 or the steel splint 3.

[0060] A construction method of a device for hoisting, positioning and installing a steel splint for a ribbed steel beam, using the device for hoisting, positioning and installing a ribbed steel beam described in any one of the above, the specific steps are as follows:

[0061] Step 1: Adjust the length of the adjustable connecting rod 1 so that the distance between the two hoisting fixture assemblies 7 is suitable for the steel beam 4 to be hoisted. Connect the hoisting fixture assemblies 7 and install them on both sides of the upper flange 13 of the steel beam, and tighten the bottom fastening bolts 22. At this time, the included angle between the steel beam positioning fixture assembly 33 and the hoisting fixture assembly 7 is 0°, and the fixed collar 17 of the steel beam positioning fixture assembly 33 is sleeved on the fixed rod 16 of the hoisting fixture assembly 7.

[0062] Step 2: Adjust the size of the splint fixing frame 30. The U-shaped buckle 28 clamps the upper end of the steel splint 3, and the splint support plate 31 abuts against the lower end of the steel splint 3 by cooperating with different pin holes through the pin shaft 32. At this time, the steel splint 3 can be inserted and fixed therein, and the bolt holes on the steel splint 3 and the steel beam web are pre-aligned.

[0063] Step 3: Pass the sling 2 through the diagonal hoisting hole 19 on the hoisting fixture assembly 7, and use a hoisting device to transport the steel beam 4 to the designated position.

[0064] Step 4: Open the fixed collar 17 of the steel beam positioning fixture assembly 33, and rotate the steel beam positioning fixture assembly 33 180° around the hinge 18 so that the upper flange 9 of the connecting member to be connected is embedded in the horizontal groove 25, and tighten the fastening bolts 22 at the bottom of the steel beam positioning fixture assembly 33 to clamp the upper flange 9 of the connecting member.

[0065] Step 5: If accurate positioning of the bolt holes is required, when moving the splint installation assembly 8, the fastening bolts 22 can be loosened slightly first, and then the splint installation assembly 8 is pulled to move it along the length direction of the steel beam 4. After the bolt holes on the steel splint 3 and the bolt holes to be connected are aligned, the fastening bolts 22 are tightened, and steel bars are inserted into the bolt holes for positioning.

[0066] Step 6: Rotate the rotating handle 29 to adjust the traveling direction of the splint installation assembly 8, and push the splint installation assembly 8 to move along the direction perpendicular to the upper flange 13 of the steel beam so that the steel splint 3 is close to the steel beam web.

[0067] Step 7: Lift the U-shaped buckle 28 at the upper end of the splint fixing frame 30 upward to make the steel splint 3 close to the steel beam web, insert bolts into the bolt holes, and fix them.

[0068] Step 8: Return the splint installation assembly 8 to its original position, loosen the fastening bolts 22 of each part, remove the device, and complete the hoisting of the steel beam and the installation of the steel splint.

[0069] The present invention integrates the functional requirements such as hoisting of steel beams, positioning of steel beams and installation of splints by using simple structural components, realizing the multi-function of the device. Especially when used for large-sized steel beams with stiffeners, it effectively reduces the installation difficulty of large-sized steel splints, greatly improves the installation efficiency of steel beams and steel splints, eliminates the process of manually moving steel splints, reduces the labor intensity of workers, and at the same time reduces the safety risk of high-altitude and high-intensity operations of workers. The device of the present invention is simple in structure, convenient to operate, time-saving and labor-saving, and can effectively improve the production efficiency and ensure the construction quality.

[0070] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for hoisting and positioning a ribbed steel beam and installing a splint, comprising a sling (2) and a steel beam (4), wherein the steel beam (4) includes a steel beam upper flange (13), a steel beam stiffener (14), a steel beam lower flange (15) and a steel beam web, and is characterized in that: It also includes a set of hoisting fixture assemblies (7), a set of steel beam positioning fixture assemblies (33), and a splint installation assembly (8). The hoisting fixture assemblies (7) are symmetrically arranged on both sides of the upper flange (13) of the steel beam and are connected by adjustable connecting rods (1). The steel beam positioning fixture assemblies (33) are arranged on the side of the hoisting fixture assemblies (7) away from the upper flange (13) of the steel beam and can rotate relative to the hoisting fixture assemblies (7). The splint installation assembly (8) is slidably arranged below the hoisting fixture assemblies (7) and the steel beam positioning fixture assemblies (33). Each hoisting fixture assembly (7) includes a horizontal folding plate (34), a horizontal plate (35), a hoisting stiffening plate (20), a hoisting ear plate (36), and a cantilever frame I (5). The horizontal folding plate (34) and the horizontal plate (35) are connected, and a groove is provided in the middle of the horizontal plate (35). The horizontal folding plate (34) and the horizontal plate (35) form a T-shaped groove (21) for clamping the steel beam (4), and a hoisting stiffening plate (20) is arranged on the side away from the T-shaped groove (21). The cantilever frame I (5) is in an "L" shape and is embedded in the space formed by the horizontal folding plate (34), the horizontal plate (35), and the hoisting stiffening plate (20). The hoisting stiffening plate (20) is located above the cantilever frame I (5). A hoisting ear plate (36) is arranged on the upper surface of the horizontal folding plate (34). An inclined hoisting hole (19) for hoisting with a sling (2) and a connection hole (37) for the adjustable connecting rod (1) to pass through are provided on the hoisting ear plate (36). Each steel beam positioning fixture assembly (33) includes a base plate I (38), a base plate II (39), a positioning stiffening plate (26), and a cantilever frame II (6). During construction, the steel beam positioning fixture assemblies (33) are arranged on both sides of the component to be connected. The base plate I (38) and the base plate II (39) are connected and form a horizontal groove (25) for clamping the component to be connected. A positioning stiffening plate (26) is arranged on the side away from the horizontal groove (25). The cantilever frame II (6) is in an "L" shape and is embedded in the space formed by the base plate I (38), the base plate II (39), and the positioning stiffening plate (26). The positioning stiffening plate (26) is located above the cantilever frame II (6).

2. The device for hoisting and positioning the ribbed steel beam and installing the splint according to claim 1, wherein: The splint installation assembly (8) includes a roller support (27), a U-shaped buckle (28), a rotating handle (29), a splint fixing frame (30), a splint support plate (31), and a pin shaft (32). A roller support (27) is arranged at the middle position above the splint fixing frame (30). U-shaped buckles (28) for fixing the steel splint (3) are arranged at both ends above the splint fixing frame (30). A splint support plate (31) is connected below the splint fixing frame (30) through a pin shaft (32). A rotating handle (29) is arranged on the roller support (27).

3. The device for hoisting and positioning the ribbed steel beam and installing the splint according to claim 2, wherein: An internal groove I (23) is arranged at one end of the cantilever frame I (5) away from the hoisting stiffening plate (20). An internal groove II (24) is arranged at one end of the cantilever frame II (6) away from the positioning stiffening plate (26). The internal groove I (23) and the internal groove II (24) cooperate with each other to form a slide rail for the roller support (27) of the splint installation assembly (8) to slide.

4. The device for hoisting and installing the ribbed steel beam and the splint according to claim 2, characterized in that: The hoisting fixture assembly (7) further includes a fixing rod (16), the fixing rod (16) is arranged on the cantilever frame one (5) between two hoisting stiffening plates (20), the steel beam positioning fixture assembly (33) further includes a fixing collar (17), the fixing collar (17) is arranged on the cantilever frame two (6) between two positioning stiffening plates (26), and the fixing collar (17) can be sleeved on the fixing rod (16).

5. The device for hoisting and positioning the ribbed steel beam and installing the splint according to claim 2, wherein: Hinges (18) are arranged at the intersections of the "L" shapes of the cantilever frame one (5) and the cantilever frame two (6), and the hinges (18) of the two cooperate with each other to rotatably connect the hoisting fixture assembly (7) and the steel beam positioning fixture assembly (33), and the range of the rotation angle is 0° - 180°.

6. The device for hoisting and positioning the ribbed steel beam and installing the splint according to claim 2, characterized in that: Both the transverse plate (35) and the substrate two (39) are provided with adjusting bolt holes for installing fastening bolts (22).

7. The device for hoisting and positioning the ribbed steel beam and installing the splint according to claim 2, wherein: The T-shaped groove (21) includes a T-shaped horizontal groove and a T-shaped vertical groove, the T-shaped horizontal groove catches the upper flange (13) of the steel beam, and the T-shaped vertical groove catches the stiffening rib (14) of the steel beam.

8. A construction method for a device for hoisting and installing a ribbed steel beam and a splint, characterized in that: When using the ribbed steel beam hoisting and positioning and splint installation device according to any one of claims 1 - 7, the specific steps are as follows: Step 1: Adjust the length of the adjustable connecting rod (1), connect the hoisting fixture assembly (7) and install it on both sides of the steel beam (4), tighten the bottom fastening bolts (22), and the fixing collar (17) of the steel beam positioning fixture assembly (33) is sleeved on the fixing rod (16) of the hoisting fixture assembly (7); Step 2: Adjust the size of the splint fixing frame (30), embed the steel splint (3) into it and fix it, and pre-align the bolt holes on the steel splint (3) and the steel beam web; Step 3: Pass the sling (2) through the diagonal hoisting hole (19) on the hoisting fixture assembly (7), and use a lifting device to transport the steel beam (4) to the designated position; Step 4: Open the fixing collar (17) of the steel beam positioning fixture assembly (33), rotate the steel beam positioning fixture assembly (33) 180° around the hinge (18), so that the component to be connected is embedded into the horizontal groove (25), and tighten the fastening bolts (22) at the bottom of the steel beam positioning fixture assembly (33); Step 5: Pull the splint installation assembly (8) to move it along the length direction of the steel beam (4), align the bolt holes on the steel splint (3) with the bolt holes to be connected, and insert steel bars into the bolt holes for positioning; Step 6: Rotate the rotating handle (29) to adjust the traveling direction of the splint installation assembly (8), and push the splint installation assembly (8) to move along the direction perpendicular to the upper flange (13) of the steel beam, so that the steel splint (3) is close to the steel beam web; Step 7: Lift up the U-shaped buckle (28) at the upper end of the splint fixing frame (30) to make the steel splint (3) tightly attached to the steel beam web, insert bolts into the bolt holes, and fix them; Step 8: Return the splint installation assembly (8) to its original position, loosen the fastening bolts (22) of each part, remove the device, and complete the hoisting of the steel beam and the installation of the steel splint.

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