Ultra-high-clearance and ultra-large-span giant steel rib self-suspension device and mounting method

Abstract

The invention discloses an ultra-high-clearance ultra-large-span giant steel rib self-suspension device and an installation method, and relates to the technical field of structural engineering.The ultra-high-clearance ultra-large-span giant steel rib self-suspension device comprises a self-suspension structure and an installation jig frame, and the self-suspension structure comprises a suspender assembly, a steel reinforcement framework assembly, a bottom assembly, a side assembly and a protection assembly; the mounting jig frame is formed by welding a longitudinal bottom beam, a longitudinal top beam, a transverse bottom beam, a transverse top beam, a stand column and a joist, the mounting jig frame is arranged on the ground, and the two ends of an H-shaped steel rib in the self-suspension structure are erected on the joist of the mounting jig frame. According to the ultra-high-clearance and ultra-large-span giant steel rib self-suspension device and the mounting method, the procedure of erecting an ultra-high all-round scaffold is omitted, so that the construction measure cost is greatly reduced, and the construction progress is accelerated; the overall stability of the giant steel reinforced concrete beam self-suspension system under the action of a large load is remarkably improved, and the application range of the self-suspension system is expanded.

Description

Technical Field

[0001] The present invention relates to the technical field of structural engineering, and in particular to an ultra-high clearance, ultra-large span giant steel frame self-suspension device and an installation method thereof. Background Art

[0002] The world has entered the era of big science, and my country's major scientific and technological infrastructure is experiencing rapid development. A number of large-scale scientific facilities have been completed and put into operation, driving key technological breakthroughs. Upon completion, a comprehensive test and research platform for ultra-large aerospace optical detection equipment will be primarily used for comprehensive testing of ultra-large aerospace optical detection equipment, becoming a world-leading optical test and research platform and contributing to the development of "nationally important equipment."

[0003] Large scientific facilities for aerospace optical experimental research are characterized by large floor space, high equipment height, and long equipment installation time. Therefore, the requirements for space size are extremely high, and it is necessary to build a frame structure system with ultra-high clearance and ultra-large span to meet the equipment placement requirements. In this case, in order to meet the requirements of component strength and stability, a super-high clearance and ultra-large span giant steel-reinforced concrete beam will appear. For this type of beam, the traditional construction method is to set up a full-height scaffolding under the beam, hoist the steel frame into place and install it on the bracket of the steel column, and then use the full-height scaffolding to carry out the steel bar binding, beam bottom formwork and beam side formwork installation and concrete pouring in sequence. However, for In a certain ultra-large aerospace optical detection equipment comprehensive test and research platform project, the maximum indoor net height reaches 70.55m, the maximum cross-sectional size of the steel-reinforced concrete beam is 800mm×4000mm, and the maximum span reaches 30m. If the traditional method is still used, the height of the full-floor scaffolding will reach nearly 70m. Not only will the erection time be long, but the workers' operation will be highly dangerous, which will seriously reduce the construction speed and generate extremely high measures costs. Construction safety cannot be effectively guaranteed. At the same time, due to the erection of the scaffolding, the installation of the equipment below can only be carried out after all the scaffolding is removed, further reducing the construction progress and seriously restricting the construction period. Therefore, a self-suspension structural system of giant steel-framed concrete beams with ultra-high clearance and ultra-large span and a construction method thereof are invented, so that the steel bar binding and formwork installation work can all be completed on the ground. After the production is completed, a tower crane is used to hoist and install the installed steel-framed beam as a whole into place, and finally the concrete pouring process is carried out. By adopting this method, it is possible to avoid the need to set up ultra-high full-floor scaffolding, greatly reduce the cost of measures, and ensure the safety and convenience of construction. At the same time, it does not affect the installation of equipment below, so that the construction of the steel-framed concrete beam and the installation of the equipment below can be carried out simultaneously, thereby greatly accelerating the construction progress and significantly reducing the construction period. Summary of the Invention

[0004] The purpose of the present invention is to provide a giant steel frame self-suspension device and installation method with ultra-high clearance and ultra-large span, which eliminates the process of erecting ultra-high full-floor scaffolding, thereby greatly reducing construction measures costs and accelerating construction progress; significantly improves the overall stability of the giant steel frame concrete beam self-suspension system under large loads, and expands the application range of the self-suspension system.

[0005] The present invention provides a giant steel frame self-suspension device with ultra-high clearance and ultra-large span, comprising a self-suspension structure and an installation frame, wherein the self-suspension structure comprises a hanger assembly, a steel frame assembly, a bottom assembly, a side assembly and a protective assembly; the T-shaped pad in the hanger assembly is connected to the stirrups in the steel frame assembly, the beam bottom formwork and the back-to-back channel steels in the bottom assembly are inserted into the hanger in the hanger assembly, the H-shaped steel frame in the hanger assembly is connected to the tension bolts in the side assembly, and the channel steel in the bottom assembly is welded to the tie plate and the vertical protective steel pipe in the protective assembly; the installation frame is welded by a longitudinal bottom beam, a longitudinal top beam, a transverse bottom beam, a transverse top beam, a column and a supporting beam, the installation frame is set on the ground, and the two ends of the H-shaped steel frame in the self-suspension structure are set on the supporting beam of the installation frame.

[0006] Preferably, the hanger assembly includes an H-shaped steel frame, a hanger, triangular stiffening ribs and a T-shaped pad. The lower flange of the H-shaped steel frame is fixedly connected to the hanger through a nut washer and a nut. A T-shaped pad is provided on the top of the H-shaped steel frame. The lower flange and web of the H-shaped steel frame are respectively welded and connected to the triangular stiffening ribs.

[0007] Preferably, the steel bar waist reinforcement skeleton assembly includes stirrups, upper longitudinal bars of the beam, bottom longitudinal bars of the beam and waist bars, the stirrups are located on the upper surface of the T-shaped pad, and the stirrups are connected to the upper longitudinal bars of the beam, bottom longitudinal bars of the beam and by iron wire.

[0008] Preferably, the bottom component includes back-to-back channel steels, bottom formwork secondary keels and beam bottom formwork, the back-to-back channel steels include channel steels and channel steel connecting plates, the beam bottom formwork passes through the hanger from bottom to top, the channel steel connecting plates are welded to two channel steels in opposite directions, a circular hole is opened in the center of the channel steel connecting plates, the hanger passes through the circular hole into the channel steel connecting plates, and is fixed by nuts, washers and nuts, and the bottom formwork secondary keel is inserted into the beam bottom module and the back-to-back channel steels.

[0009] Preferably, the side assembly includes tension bolts, beam side formwork, side formwork main keel and side formwork secondary keel, the web of the H-shaped steel frame in the hanger assembly is opened, the tension bolts are inserted into the web opening, the beam side formwork is inserted into the tension bolts, the number of beam side formworks is two, the side formwork main keel is fixedly connected to the tension bolts by a snap connection, and the side formwork secondary keel is inserted between the beam side formwork and the side formwork main keel.

[0010] Preferably, the protective assembly includes a vertical protective steel pipe, a horizontal protective steel pipe, and a vertical close-mesh safety net. The horizontal protective steel pipe is divided into a first horizontal protective steel pipe and a second horizontal protective steel pipe. The vertical protective steel pipe is welded to the channel steel connecting plate. The first horizontal protective steel pipe and the second horizontal protective steel pipe are fixedly connected to the vertical protective steel pipe by a snap fastener. The vertical close-mesh safety net is located on one side of the horizontal protective steel pipe.

[0011] Preferably, a method for installing a giant steel frame self-suspension device with ultra-high clearance and ultra-large span comprises the following steps:

[0012] Step S1, installing the boom assembly;

[0013] Drill holes at the corresponding positions of the lower flange of the H-shaped steel frame, insert the hanger rod into the pre-drilled hole on the lower flange of the H-shaped steel frame, arrange triangular stiffening ribs symmetrically on both sides of the hole, weld the two sides of the triangular stiffening ribs to the lower flange and web of the H-shaped steel frame respectively, and fix the hanger rod to the lower flange of the H-shaped steel frame with bolts. Use nuts, washers and nuts on the upper and lower surfaces of the hole to fasten the hanger rod;

[0014] Step S2: placing the H-shaped steel frame in the boom assembly on the joist for mounting the tire frame;

[0015] Transport the processed H-shaped steel frame to the construction site and use a tower crane to hoist the H-shaped steel frame onto the installation cradle on the ground;

[0016] Step S3: Install the steel frame assembly with the help of T-shaped pads welded to the upper flange of the H-shaped steel frame;

[0017] With the help of the T-shaped pad welded on the upper flange of the H-shaped steel frame, the stirrups are erected on the upper surface of the T-shaped pad. The upper longitudinal reinforcement of the beam, the bottom longitudinal reinforcement of the beam, and the waist reinforcement are connected to the stirrups through iron wires, thus forming an overall steel frame. At this point, the steel frame installation is completed;

[0018] Step S4: installing the bottom assembly;

[0019] First, insert the bottom formwork of the beam into the hanger from bottom to top for temporary fixation, and then insert the pre-processed back-to-back channel steel into the hanger from bottom to top. After the back-to-back channel steel is inserted into the hanger, use two nuts and two nut washers to fix it to the hanger at the lower connecting plate. Insert the bottom formwork secondary keel between the back-to-back channel steel and the bottom formwork of the beam according to the designed spacing. After the position of the bottom formwork of the beam is corrected, tighten the nuts.

[0020] Step S5: Install the side components;

[0021] Drill holes in the web of the H-shaped steel frame, insert the tension bolts into the holes, insert the left and right beam side formwork into the screws, and temporarily fix them; install the side form main keel, which is a double steel pipe. Use clips to preliminarily tighten and fix the two steel pipes with the tension bolts, insert the side form secondary keel, and after the position of the side form secondary keel is corrected, tighten and fix the tension bolts completely.

[0022] Step S6: Installing the protection component;

[0023] Weld the vertical protective steel pipes to the upper surface of the channel steel connecting plate. The spacing of the vertical protective steel pipes should be the same as the back-to-back welded channel steels. Install the first horizontal protective steel pipe and the second horizontal protective steel pipe. Use clips to connect and fix the horizontal protective steel pipe and the vertical protective steel pipe. Finally, install the vertical dense mesh safety net.

[0024] Therefore, the present invention adopts the above-mentioned ultra-high clearance and ultra-large span giant steel frame self-suspension device and installation method, eliminating the process of erecting ultra-high full-floor scaffolding, thereby greatly reducing construction measures costs and speeding up construction progress; significantly improving the overall stability of the giant steel frame concrete beam self-suspension system under large loads, and expanding the application range of the self-suspension system.

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a cross-sectional view of the self-suspension structure of a giant steel frame self-suspension device with ultra-high clearance and ultra-large span according to the present invention;

[0027] Figure 2 This is a side view of the self-suspension structure of a super-high clearance, super-large span giant steel frame self-suspension device of the present invention;

[0028] Figure 3 This is a side view of the beam side formwork and protective steel pipe of a super-high clearance, super-large span giant steel frame self-suspension device of the present invention;

[0029] Figure 4 This is a top view of the self-suspension structure of a super-high clearance, super-large span giant steel frame self-suspension device of the present invention;

[0030] Figure 5 This is a structural diagram of the channel steel connecting the gusset plate and the channel steel of a super-high clearance and super-large span giant steel frame self-suspension device of the present invention;

[0031] Figure 6 A top view of a mounting bracket for a giant steel frame self-suspension device with ultra-high clearance and ultra-large span according to the present invention;

[0032] Figure 7This is a structural schematic diagram of a super-high clearance, super-large span giant steel frame self-suspension device of the present invention;

[0033] Figure 8 This is a front view of a mounting bracket for a giant steel frame self-suspension device with ultra-high clearance and ultra-large span according to the present invention;

[0034] Figure 9 This is a structural schematic diagram of an installation boom assembly for an installation method of an ultra-high clearance, ultra-large span giant steel frame self-suspension device according to the present invention;

[0035] Figure 10 This is a structural schematic diagram of an H-shaped steel frame being installed on a cradle in an installation method of an ultra-high clearance, ultra-large span giant steel frame self-suspension device according to the present invention;

[0036] Figure 11 A schematic diagram of the installation structure of a steel frame assembly of an installation method for an ultra-high clearance, ultra-large span giant steel frame self-suspension device according to the present invention;

[0037] Figure 12 A schematic diagram of the installation structure of a steel frame assembly of an installation method for an ultra-high clearance, ultra-large span giant steel frame self-suspension device according to the present invention;

[0038] Figure 13 This is a structural schematic diagram of the installation side components of an installation method for an ultra-high clearance, ultra-large span giant steel frame self-suspension device according to the present invention;

[0039] Figure 14 The present invention is a structural schematic diagram of an installation protection component of an installation method for an ultra-high clearance, ultra-large span giant steel frame self-suspension device.

[0040] Reference numerals

[0041] 1. H-shaped steel frame; 2. Hanger; 3. Triangular stiffener; 4. T-shaped pad; 5. Stirrups; 6. Upper longitudinal reinforcement of beam; 7. Longitudinal reinforcement of bottom beam; 8. Waist reinforcement; 9. Secondary purlin of bottom formwork; 10. Bottom formwork of beam; 11. Channel steel; 12. Channel steel connecting plate; 13. Tension bolts; 14. Side formwork of beam; 15. Main purlin of side formwork; 16. Secondary purlin of side formwork; 17. Vertical protective steel pipe; 18. First horizontal protective steel pipe; 19. Second horizontal protective steel pipe; 20. Vertical close-mesh safety net; 21. Longitudinal bottom beam; 22. Longitudinal top beam; 23. Horizontal bottom beam; 24. Horizontal top beam; 25. Column; 26. Support beam. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0043] Unless otherwise defined, technical or scientific terms used in the present invention shall have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

[0044] The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0045] Example 1

[0046] like Figures 1-14 As shown, the present invention provides an ultra-high clearance and ultra-large span giant steel frame self-suspension device and installation method, including a self-suspension structure and an installation frame, the self-suspension structure includes a hanger assembly, a steel frame assembly, a bottom assembly, a side assembly and a protective assembly; the T-shaped pad 4 in the hanger assembly is connected to the stirrups 5 in the steel frame assembly, the beam bottom formwork 10 and the back-to-back channel steels in the bottom assembly are inserted into the hanger 2 in the hanger assembly, the H-shaped steel frame 1 in the hanger assembly is connected to the tension bolts 13 in the side assembly, and the channel steel 11 in the bottom assembly is connected to the vertical protective steel pipe 17 in the protective assembly by welding; the installation frame is welded by a longitudinal bottom beam 21, a longitudinal top beam 22, a transverse bottom beam 23, a transverse top beam 24, a column 25 and a supporting beam 26, the installation frame is set on the ground, and the two ends of the H-shaped steel frame 1 in the self-suspension structure are set on the supporting beams of the installation frame.

[0047] The hanger assembly includes an H-shaped steel frame 1, a hanger 2, a triangular stiffening rib 3 and a T-shaped pad 4. The lower flange of the H-shaped steel frame 1 is fixedly connected to the hanger 2 through a nut washer and a nut. A T-shaped pad 4 is provided on the top of the H-shaped steel frame 1. The lower flange and web of the H-shaped steel frame 1 are welded to the two sides of the triangular stiffening rib 3 respectively.

[0048] The steel skeleton assembly includes stirrups 5, upper longitudinal bars 6, bottom longitudinal bars 7 and waist bars 8. The stirrups 5 are located on the upper surface of the T-shaped pad 4. The stirrups 5 are connected to the upper longitudinal bars 6, bottom longitudinal bars 7 and waist bars 8 through iron wires.

[0049] The bottom assembly includes back-to-back channel steels, bottom formwork secondary purlins 9 and beam bottom formwork 10. The back-to-back channel steels include channel steels 11 and channel steel connecting plates 12. The beam bottom formwork 10 passes through the hanger 2 from bottom to top. The channel steel connecting plates 12 are welded to two channel steels 11 in opposite directions. A circular hole is opened in the center of the channel steel connecting plate 12. The hanger 2 passes through the circular hole into the channel steel connecting plate 12 and is fixed by nuts, washers and nuts. The bottom formwork secondary purlin 9 is inserted into the beam bottom module and the back-to-back channel steels according to the designed spacing.

[0050] The side assembly includes tension bolts 13, beam side formwork 14, side formwork main purlin 15 and side formwork secondary purlin 16. The web of the H-shaped steel frame 1 in the hanger assembly has an opening, the tension bolts 13 are inserted into the web opening, and the beam side formwork 14 is inserted into the tension bolts 13. There are two beam side formworks 14. The side formwork main purlin 15 is fixedly connected to the tension bolts 13 by a snap connection, and the side formwork secondary purlin 16 is inserted between the beam side formwork 14 and the side formwork main purlin 15.

[0051] The protective assembly includes a vertical protective steel pipe 17, a horizontal protective steel pipe, and a vertical close-mesh safety net 20. The horizontal protective steel pipe is divided into a first horizontal protective steel pipe 18 and a second horizontal protective steel pipe 19. The vertical protective steel pipe 17 is welded to the channel steel connecting plate 12. The vertical protective steel pipe 17 is arranged at the same spacing as the back-to-back welded channel steel 11. The first horizontal protective steel pipe 18 and the second horizontal protective steel pipe 19 are fixedly connected to the vertical protective steel pipe 17 by snap fasteners. The vertical close-mesh safety net 20 is located on one side of the horizontal protective steel pipe.

[0052] A super-high clearance and super-large span giant steel frame self-suspension device and installation method thereof comprises the following steps: step S1, installing the suspension rod assembly;

[0053] The H-shaped steel frame 1 is provided with a plurality of holes, each of which is provided with a plurality of holes, and the plurality of holes are provided with a plurality of holes.

[0054] Step S2: placing the H-shaped steel frame 1 in the boom assembly on the joist for mounting the tire frame;

[0055] The processed H-shaped steel frame 1 is transported to the construction site and hoisted onto the installation cradle on the ground using a tower crane to facilitate the subsequent installation of various components of the self-suspension system;

[0056] Step S3, installing the steel frame assembly with the help of the T-shaped pad 4 welded to the upper flange of the H-shaped steel frame 1;

[0057] With the help of the T-shaped pad welded on the upper flange of the H-shaped steel frame 1, first, the stirrups 5 are installed. The stirrups 5 are erected on the upper surface of the T-shaped pad. Then, the upper longitudinal reinforcement 6 of the beam and the bottom longitudinal reinforcement 7 of the beam are installed. The upper longitudinal reinforcement 6 of the beam, the bottom longitudinal reinforcement 7 of the beam, and the waist reinforcement 8 are respectively connected to the stirrups 5 by iron wires, thereby forming an integral steel frame. At this point, the steel frame installation is completed;

[0058] Step S4: installing the bottom assembly;

[0059] First, the beam bottom template 10 is inserted from bottom to top into the hanger 2 for temporary fixation. Then, the pre-processed back-to-back channel steel is inserted from bottom to top into the hanger 2. The back-to-back channel steel is made by welding two channel steels 11 with opposite openings together using square channel steel 11 connecting plates. A circular hole is opened in the center of the channel steel connecting plate 12, and the hole diameter is slightly larger than the hanger 2 diameter to facilitate the insertion of the hanger 2. One channel steel connecting plate 12 is set on the upper and lower surfaces of the channel steel 11 on the same plumb line.

[0060] After the back-to-back channel steel is inserted into the hanger 2, two nuts and a nut washer are used to secure it to the hanger 2 at the lower connecting plate, but do not tighten it completely. Then, the bottom formwork secondary keel 9 is inserted between the back-to-back channel steel and the beam bottom formwork 10 according to the designed spacing. After the position of the beam bottom formwork 10 is corrected, the nuts are tightened.

[0061] Step S5: Install the side components;

[0062] Holes are opened in the web of the H-shaped steel frame 1 in advance, and the tension bolts 13 are inserted into the holes. Then, the left and right beam side formworks 14 are inserted into the screws and temporarily fixed. The side formwork main keel 15 is installed. The side formwork main keel 15 is a double steel pipe. Use a snap fastener to preliminarily tighten and fix the two steel pipes with the tension bolts 13, and then insert the side formwork secondary keel 16. After the position of the side formwork secondary keel 16 is corrected, the tension bolts 13 are completely tightened and fixed.

[0063] Step S6: Installing the protection component;

[0064] Weld the vertical protective steel pipes 17 to the upper surface of the channel steel connecting plate 12. The spacing between the vertical protective steel pipes 17 is the same as the back-to-back welded channel steel. The top of the vertical protective steel pipe 17 must extend at least 1.2m above the top of the beam to provide protection. Install the first horizontal protective steel pipe 18 and the second horizontal protective steel pipe 19. Use clips to securely connect the horizontal protective steel pipes to the vertical protective steel pipes 17. Finally, install the vertical close-mesh safety net 20.

[0065] Therefore, the present invention adopts the above-mentioned ultra-high clearance and ultra-large span giant steel frame self-suspension device and installation method. The steel reinforcement binding and formwork installation work of the steel frame concrete beam are all completed on the ground, eliminating the process of erecting an ultra-high full-floor scaffolding, thereby greatly reducing the construction measures cost and speeding up the construction progress; the construction of the steel frame concrete beam does not affect the process of installing the equipment below, so that the two can be carried out simultaneously, thereby greatly improving the construction efficiency; the lower flange of the H-shaped steel beam is opened, and the hanger is hung below the lower flange of the H-shaped steel beam, which significantly improves the overall stability of the giant steel frame concrete beam self-suspension system under large loads and expands the application range of the self-suspension system.

[0066] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A giant steel frame self-suspension device with ultra-high clearance and ultra-large span, characterized in that: It includes a self-suspension structure and an installation frame. The self-suspension structure includes a hanger assembly, a steel frame assembly, a bottom assembly, a side assembly and a protective assembly. The T-shaped pad in the hanger assembly is connected to the stirrups in the steel frame assembly. The bottom beam formwork and back-to-back channel steels in the bottom assembly are inserted into the hanger in the hanger assembly. The H-shaped steel frame in the hanger assembly is connected to the tension bolts in the side assembly. The channel steel in the bottom assembly is welded to the gusset plate and the vertical protective steel pipe in the protective assembly. The installation frame is welded by a longitudinal bottom beam, a longitudinal top beam, a transverse bottom beam, a transverse top beam, a column and a supporting beam. The installation frame is set on the ground, and both ends of the H-shaped steel frame in the self-suspension structure are set on the supporting beam of the installation frame.

2. The ultra-high clearance, ultra-large span, giant steel frame self-suspension device according to claim 1, characterized in that: The hanger assembly includes an H-shaped steel frame, a hanger, a triangular stiffening rib and a T-shaped pad. The lower flange of the H-shaped steel frame is fixedly connected to the hanger through a nut washer and a nut. A T-shaped pad is provided on the top of the H-shaped steel frame. The lower flange and web of the H-shaped steel frame are welded and connected to the triangular stiffening rib respectively.

3. The ultra-high clearance, ultra-large span, giant steel frame self-suspension device according to claim 1, characterized in that: The steel frame components include stirrups, upper longitudinal bars, bottom longitudinal bars and waist bars. The stirrups are located on the upper surface of the T-shaped pad. The stirrups are connected to the upper longitudinal bars, bottom longitudinal bars and waist bars through iron wires.

4. The ultra-high clearance, ultra-large span, giant steel frame self-suspension device according to claim 1, characterized in that: The bottom components include back-to-back channel steels, bottom formwork secondary keels and beam bottom formwork. The back-to-back channel steels include channel steels and channel steel connecting plates. The beam bottom formwork passes through the hanger from bottom to top. The channel steel connecting plates are welded to two channel steels in opposite directions. A circular hole is opened in the center of the channel steel connecting plate. The hanger passes through the circular hole into the channel steel connecting plate and is fixed with nuts, washers and nuts. The bottom formwork secondary keel is inserted into the beam bottom module and the back-to-back channel steels.

5. The ultra-high clearance, ultra-large span, giant steel frame self-suspension device according to claim 1, characterized in that: The side components include tension bolts, beam side formwork, side formwork main keel and side formwork secondary keel. The web of the H-shaped steel frame in the hanger assembly has openings, the tension bolts are inserted into the web openings, and the beam side formwork is inserted into the tension bolts. There are two beam side formworks. The side formwork main keel is fixedly connected to the tension bolts by a snap connection, and the side formwork secondary keel is inserted between the beam side formwork and the side formwork main keel.

6. The ultra-high clearance, ultra-large span, giant steel frame self-suspension device according to claim 1, characterized in that: The protective components include vertical protective steel pipes, horizontal protective steel pipes, and vertical close-mesh safety nets. The horizontal protective steel pipes are divided into first horizontal protective steel pipes and second horizontal protective steel pipes. The vertical protective steel pipes are welded to the channel steel connecting plates. The first horizontal protective steel pipes and the second horizontal protective steel pipes are fixed to the vertical protective steel pipes by snap fasteners. The vertical close-mesh safety net is located on one side of the horizontal protective steel pipe.

7. A method for installing a super-high clearance, super-large span, giant steel frame self-suspension device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step S1, installing the boom assembly; Drill holes at the corresponding positions of the lower flange of the H-shaped steel frame, insert the hanger rod into the pre-drilled hole on the lower flange of the H-shaped steel frame, arrange triangular stiffening ribs symmetrically on both sides of the hole, weld the two sides of the triangular stiffening ribs to the lower flange and web of the H-shaped steel frame respectively, and fix the hanger rod to the lower flange of the H-shaped steel frame with bolts. Use nuts, washers and nuts on the upper and lower surfaces of the hole to fasten the hanger rod; Step S2: placing the H-shaped steel frame in the boom assembly on the joist for mounting the tire frame; Transport the processed H-shaped steel frame to the construction site and use a tower crane to hoist the H-shaped steel frame onto the installation cradle on the ground; Step S3: Install the steel frame assembly with the help of T-shaped pads welded to the upper flange of the H-shaped steel frame; With the help of the T-shaped pad welded on the upper flange of the H-shaped steel frame, the stirrups are erected on the upper surface of the T-shaped pad. The upper longitudinal reinforcement of the beam, the bottom longitudinal reinforcement of the beam, and the waist reinforcement are connected to the stirrups through iron wires, thus forming an overall steel frame. At this point, the steel frame installation is completed; Step S4: installing the bottom assembly; First, insert the bottom formwork of the beam from bottom to top into the hanger for temporary fixation, and then insert the pre-processed back-to-back channel steel into the hanger from bottom to top. After the back-to-back channel steel is inserted into the hanger, use two nuts and two nut washers to fix it to the hanger at the lower connecting plate, and insert the bottom formwork secondary keel between the back-to-back channel steel and the bottom formwork of the beam according to the designed spacing. After the position of the bottom formwork of the beam is corrected, tighten the nuts. Step S5: Install the side components; Drill holes in the web of the H-shaped steel frame, insert the tension bolts into the holes, insert the left and right beam side formwork into the screws, and temporarily fix them; install the side form main keel, which is a double steel pipe. Use clips to preliminarily tighten and fix the two steel pipes with the tension bolts, insert the side form secondary keel, and after the position of the side form secondary keel is corrected, tighten and fix the tension bolts completely. Step S6: Installing the protection component; Weld the vertical protective steel pipes to the upper surface of the channel steel connecting plate. The spacing of the vertical protective steel pipes should be the same as the back-to-back welded channel steels. Install the first horizontal protective steel pipe and the second horizontal protective steel pipe. Use clips to connect and fix the horizontal protective steel pipe and the vertical protective steel pipe. Finally, install the vertical dense mesh safety net.

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