Method for aerial erection of a long-span steel structure aerial walkway

Abstract

The present application belongs to the field of building construction, and specifically relates to a method for aerial erection of a large-span steel structure high-altitude passage. The present application realizes aerial attitude adjustment of a middle section module to complete an upward action by adopting a construction mode of installing a support module in a reserved passage opening, smoothly passes through two support modules, and then is placed between the two support modules through vertical downward movement, and precise installation is realized through the support module and the assembly module group, so as to solve the problem that aerial assembly cannot be effectively realized through present vertical hoisting technology. Meanwhile, an auxiliary traction assembly is arranged on the ground to assist the hanger to always be in a stable state, and the middle section module is ensured to be in a certain rigidity effect in the upward process, so as to prevent the occurrence of deflection problems and ensure the precise construction of the middle section module through the assembly module and the support module.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of building construction, and particularly relates to a method for erecting an aerial passage of a large-span steel structure. BACKGROUND

[0002] With the gradual increase of large buildings, in reinforced concrete structure high-rise buildings, the number of layers of high-altitude large-span connected structures is increasing, and the span is becoming larger and larger. These connected structures are connected into a whole body at the building high altitude and the two side towers, and a steel structure corridor is arranged at the height of the air to realize high-level conversion. The steel structure corridor has the construction difficulties and characteristics of large self-weight, high height in the air, large span, large construction load, high difficulty and danger, and high installation precision requirement.

[0003] Traditional aerial passages are mostly completed by vertical hoisting between two buildings, and after reaching the predetermined height, the hoisting state needs to be maintained, then a support structure is installed at the passage opening, and the support structure and both ends of the aerial passage are connected and fixed, so that the whole aerial passage operation can be completed. However, this makes the aerial passage unstable in the suspended state, and is prone to lateral deviation, which leads to inaccurate installation of the support structure, and further affects the erection quality of the aerial passage. SUMMARY

[0004] In order to solve the above technical problems, the inventors have summarized and obtained the technical scheme of the present application through practice, and the present application adopts the following technical scheme:

[0005] A method for erecting an aerial passage of a large-span steel structure, the erection steps are as follows:

[0006] Step 1: installation of hole support

[0007] A support module is installed at the building passage hole, the support module includes an upper chord and a lower chord, the upper chord is fixed on the upper floor by anchor bolts, the lower chord is fixed on the lower floor by anchor bolts, and a web diagonal is installed between the upper chord and the lower chord. The length of one end of the support module which protrudes out of the building passage hole is 30-50 cm, and the end of the protruding end is provided with a support body which is inclined downward;

[0008] Step 2: assembly of hanger

[0009] A driving wheel assembly is installed on the hanger at the bottom of the hoisting equipment, the driving wheel assembly is provided with four, two groups, two groups are distributed in front and back, and four driving wheel assemblies are respectively located at both ends of the hanger close to the side position, and two driving wheel assemblies on the same side of the hanger commonly drive a steel wire rope;

[0010] Each driving wheel assembly includes a driving wheel, a pressure wheel, and a driving motor. The driving motor is mounted on a hanger and is used to drive the driving wheel to rotate. The pressure wheel is located on top of the driving wheel and is used to compress the steel wire rope between the two. Both ends of the steel wire rope are connected to a connecting frame, which is used to connect to the top of the aerial channel.

[0011] Step 3: Middle section module assembly

[0012] The middle section module is assembled on the ground via a tire frame, and assembly modules are set at both ends. The assembly modules and support modules are positioned in correspondence.

[0013] Install the connecting frame on the top of the middle module;

[0014] Step 4: Assemble the aerial channel

[0015] The hoisting equipment drives the hanger upwards via the lifting rope and hook, and lifts the middle section module and the assembly module together. After they reach half the height, the drive motor drives the respective drive wheels to rotate, and all the drive wheels rotate in the same direction. The drive wheels and the pressure wheels adjust the distance between the ends of the wire rope and the hanger to complete the tilt adjustment of the middle section module. The adjustment is made until the projection of the assembly module on the ground is located in the area between the projections of the two support modules on the ground.

[0016] The hanger continues to move upward until the height of the assembly module at the bottom is greater than the height of the supporting module;

[0017] The driving motor drives the respective driving wheels to rotate in opposite directions, and all the driving wheels rotate in the same direction. The driving wheels and the pressure wheels adjust the distance between the two ends of the wire rope and the hanger in opposite directions to complete the horizontal adjustment of the middle section module.

[0018] After the horizontal adjustment is completed, the hanger moves downward, and the middle section module and the assembly module are lowered vertically and smoothly between the two support modules. The aerial passage is obtained by assembling the assembly module and the support module.

[0019] Preferably:

[0020] A traction assembly is installed on the ground, which includes a traction rope and a traction electric drum. One end of the traction rope is wound around the traction electric drum, and the other end is installed on the mid-section module. The speed at which the traction electric drum retracts and releases the traction rope is adaptively adjusted according to the change in the position of the traction rope installation point on the mid-section module relative to the traction electric drum. The traction rope and the lifting rope pull the mid-section module to both sides so that the mid-section module always remains stable.

[0021] Preferably:

[0022] The outer side of the traction rope is provided with three arc-shaped steel strips, which are wrapped around the outer side of the traction rope. A female head is provided on one side of the three arc-shaped steel strips, and a male head is provided on the other side. The sides of two adjacent arc-shaped steel strips are connected and matched through the female head and the male head.

[0023] A storage box is provided on the periphery of the traction electric drum, a spiral track groove is provided in the storage box, one end of the arc-shaped steel belt is connected to the end of the traction rope, and a slider is installed at the other end, and the slider is installed in the spiral track groove.

[0024] Preferably:

[0025] The traction electric drum and the storage box are installed on the frame, and the frame is provided with a receiving opening, and a rolling roller for adapting and separating the three arc-shaped steel belts is installed at the receiving opening;

[0026] When extended, the rolling roller fits the male and female ends of the three curved steel strips together and surrounds them on the outside of the traction rope to form a rigid structure; when retracted, the rolling roller separates the male and female ends of the three curved steel strips into their respective storage boxes.

[0027] Preferably:

[0028] A movable guide rail is installed on the ground, and a walking mechanism is provided at the bottom of the frame. The walking mechanism moves freely on the movable guide rail, and the movable guide rail is provided along the length direction of the middle section module.

[0029] Preferably:

[0030] An assembly body inclined upward is provided at the end of the assembly module, a positioning groove is provided on the lower surface of the assembly body, and a lifting component adapted to the positioning groove is installed on the support body.

[0031] Preferably:

[0032] The jacking assembly includes a screw rod rotatably mounted on the support module, a driving block is mounted on the end of the screw rod, and a vertically sliding jacking block is provided on the top of the driving block. The jacking block is driven to move vertically by adjusting the screw rod through the driving block.

[0033] Preferably:

[0034] The bottom of the supporting module is provided with a one-way feed tooth, and the interior of the driving block is provided with a horizontal guide groove and a vertical guide groove. A moving block that rotates with the end of the screw is installed in the horizontal guide groove, and a guide pin is installed on the moving block. A locking block is installed in the vertical guide groove. The locking block is provided with a lifting groove arranged obliquely downward, and the guide pin slides in the lifting groove. The bottom of the locking block is provided with an elastic locking body that is adapted to the one-way feed tooth.

[0035] Preferably:

[0036] The elastic locking body comprises a mounting groove mounted on the bottom of the locking block by a spring, a sliding body is arranged in the mounting groove, the bottom of the sliding body is exposed outside the mounting groove, and the bottom of the sliding body is provided with a one-way ratchet.

[0037] Preferably,

[0038] The top of the middle module is provided with a U-shaped piece, the upper side of the connecting frame is provided with a first arc-shaped groove and a second arc-shaped groove, a first turnover piece is matched in the first arc-shaped groove, a second turnover piece is matched in the second arc-shaped groove, the first turnover piece is located at the top of the second turnover piece and is hinged at one end of the second turnover piece, a torsional spring is mounted at the hinged point, one end of the first turnover piece away from the second turnover piece is matched with the first arc-shaped groove, and one end of the second turnover piece away from the first turnover piece is matched with the second arc-shaped groove.

[0039] Compared with the prior art, the present application has the following beneficial effects:

[0040] 1. By adopting the method of first installing the support module in the reserved channel opening, then installing the middle module, adjusting the posture in the air during the installation of the middle module to complete the upward action, smoothly passing through the two support modules, and after passing through, adjusting to a horizontal posture in the air, and then placing it vertically downward between the two support modules, the precise installation is realized through the support module and the middle module group, which solves the problem that the vertical hoisting cannot effectively realize the in-air assembly in the prior art. At the same time, an auxiliary traction assembly is arranged on the ground to assist the suspension frame to always be in a stable state, and secondly to prevent the occurrence of the problem of deflection during the upward movement of the middle module, which can ensure the precise construction of the middle module through the assembly module and the support module.

[0041] 2. In the past, most steel structure assemblies adopt high-strength bolts, but the bolt connection has shear force and is prone to fatigue, resulting in poor structure connection durability. Therefore, the assembly method adopts a lifting jacking block that is uphole in the positioning groove to realize the mortise and tenon connection, and only needs to adjust the screw rod to realize the lifting and descending of the jacking block, so as to convert the shear damage (poor shear resistance) caused by the relative displacement trend of the assembly module and the support module into screw rod pulling damage (strong tensile resistance), thereby improving the durability of the structure. Secondly, the driving block adopts a one-way feeding mode, so that it can feed in one direction, and through the joint action of the screw rod and the elastic locking body, the durability is further improved and the problem of thread fatigue is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a schematic diagram of the horizontal hoisting of the middle module of the present application.

[0043] Figure 2 It is a schematic diagram of the angle adjustment of the middle module of the present application.

[0044] Figure 3Schematic diagram of the middle segment module of the present application passing through two supporting modules and completing horizontal adjustment.

[0045] Figure 4 Schematic diagram of the middle segment module of the present application assembled through the assembled module and the supporting module.

[0046] Figure 5 Schematic diagram of the bottom auxiliary operation structure of the present application.

[0047] Figure 6 Schematic diagram of the overhead structure of the present application.

[0048] Figure 7 Schematic diagram of the male and female adapters. Figure 6 Schematic diagram of the male and female adapters.

[0049] Figure 8 Schematic diagram of the supporting module and the assembled module of the present application.

[0050] Figure 9 Schematic diagram of the driving block and the jacking block of the present application. Figure 8 Schematic diagram of the driving block and the jacking block of the present application.

[0051] Figure 10 Schematic diagram of the locking block of the present application. Figure 9 Schematic diagram of the locking block of the present application.

[0052] Figure 11 Schematic diagram of the overall structure of the hanger.

[0053] Figure 12 Schematic diagram of the connection between the connecting frame and the U-shaped piece.

[0054] Figure 13 Schematic diagram of the connection between the connecting frame and the U-shaped piece.

[0055] Figure 14 Schematic diagram of the connection between the connecting frame and the U-shaped piece. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0057] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0058] Example 1, asFigures 1 to 4 As shown in the drawings, a large-span steel structure high-altitude passage aerial erection method, the erection steps are as follows:

[0059] Step one: hole support installation:

[0060] The support module 10 is installed at the building passage hole, the support module 10 includes an upper chord 11 and a lower chord 12, the upper chord 11 is fixed on the upper floor through an anchor bolt, the lower chord 12 is fixed on the lower floor through an anchor bolt, an abdominal inclined rod 13 is installed between the upper chord 11 and the lower chord 12, the length of the end of the support module 10 exposed outside the building passage hole is 30-50cm, and the end of the exposed end is provided with a support body 14 inclined downward;

[0061] Step two: assembly of the hanger 20

[0062] As shown in the drawings, Figure 11 The hanger 20 is assembled through the lifting rope 19 and the hanger 20 at the bottom of the hoisting equipment, the driving wheel assembly is installed on the hanger 20, the driving wheel assembly is provided with four, two groups, two groups are distributed in front and back, and the four driving wheel assemblies are respectively located at the two ends of the hanger 20 close to the side positions, and the two driving wheel assemblies on the same side of the hanger 20 commonly drive a steel wire rope 21;

[0063] Each driving wheel assembly includes a driving wheel 22, a pressing wheel 23 and a driving motor 24, the driving motor 24 is installed on the hanger 20 and is used to drive the driving wheel 22 to rotate, the pressing wheel 23 is located at the top of the driving wheel 22 and is used to press the steel wire rope 21 between the two, and the two ends of the steel wire rope 21 are connected with the connecting frame 25, the connecting frame 25 is used to be connected at the top of the air passage;

[0064] Step three: assembly of the middle segment module 30

[0065] The middle segment module 30 is assembled on the ground through the bed frame, and the two ends are provided with the assembly module 40, and the assembly module 40 and the support module 10 are in position correspondence;

[0066] The connecting frame 25 is installed at the top of the middle segment module 30;

[0067] Step four: assembly of the air passage

[0068] The hoisting equipment drives the hanger 20 to go up through the lifting rope 19 and the lifting hook, the middle segment module 30 and the assembly module 40 go up together, after going up to half the height, the driving motor 24 drives the respective driving wheels 22 to rotate, and the driving directions of all the driving wheels 22 are consistent, the driving wheel 22 and the pressing wheel 23 adjust the distance between the two ends of the steel wire rope 21 and the hanger 20, and the inclination adjustment of the middle segment module 30 is completed, and when the adjustment is completed, the projection of the assembly module 40 on the ground is located in the area between the projections of the two support modules 10 on the ground;

[0069] The hanger 20 continues to go up, and when the height of the bottom assembly module 40 is greater than the height of the support module 10;

[0070] The driving motor 24 drives the respective driving wheels 22 to rotate reversely, and all the driving wheels 22 rotate in the same direction, and the driving wheels 22 and the pressing wheels 23 reversely adjust the distance between the two ends of the steel wire rope 21 and the hanger 20, so as to complete the horizontal adjustment of the middle section module 30.

[0071] After the horizontal adjustment is completed, the hanger 20 goes down, and the middle section module 30 and the assembly module 40 are stably placed vertically between the two support modules 10, and the air channel is obtained through the assembly of the assembly module 40 and the support module 10.

[0072] In the embodiment, the driving motor 24 drives the driving wheels 22 to rotate, and then drives the steel wire rope 21 to move, so as to adjust the distance between the connecting frame 25 and the hanger 20, and then stably adjust the inclination angle of the middle section module 30. The connecting frame 25 is symmetrically arranged at the two sides of the gravity center of the middle section module 30, so as to ensure stable operation during the adjustment process. The angle inclination adjustment is used to ensure smooth passing through the area between the two support modules 10. When falling, the air channel can be obtained through the assembly of the assembly module 40 and the support module 10.

[0073] In the embodiment, the driving motor 24 drives the driving wheels 22 to rotate, and then drives the steel wire rope 21 to move, so as to adjust the distance between the connecting frame 25 and the hanger 20, and then stably adjust the inclination angle of the middle section module 30. The connecting frame 25 is symmetrically arranged at the two sides of the gravity center of the middle section module 30, so as to ensure stable operation during the adjustment process. The angle inclination adjustment is used to ensure smooth passing through the area between the two support modules 10. When falling, the air channel can be obtained through the assembly of the assembly module 40 and the support module 10. Figures 1 to 7 Based on the above embodiment, the following improvements are made:

[0074] Since it is high-altitude operation, only the top hoisting method is often used, which may cause shaking during high-altitude assembly. Therefore, an auxiliary assembly part is added, that is, a traction assembly is installed on the ground, the traction assembly includes a traction rope 51 and a traction electric drum 52, one end of the traction rope 51 is wound on the traction electric drum 52, the other end is installed on the middle section module 30, and the speed of the traction electric drum 52 for winding and unwinding the traction rope 51 is adaptively adjusted according to the change of the position of the installation point of the traction rope 51 on the middle section module 30 relative to the position of the traction electric drum 52, and the traction rope 51 and Hoisting line 19 The middle section module 30 is pulled to the two sides to keep the middle section module 30 in a stable state.

[0075] The outer side of the traction rope 51 is provided with three arc-shaped steel belts 53, the three arc-shaped steel belts 53 are wrapped on the outer side of the traction rope 51, one side of the three arc-shaped steel belts 53 is provided with a female head 532, the other side is provided with a male head 531, and the side parts of the adjacent two arc-shaped steel belts 53 are connected and matched through the female head 532 and the male head 531.

[0076] A storage box 54 is provided on the periphery of the traction electric drum 52 , and a spiral track groove 541 is provided in the storage box 54 . One end of the arc-shaped steel belt 53 is connected to the end of the traction rope 51 , and a slider 542 is installed at the other end. The slider 542 is installed in the spiral track groove 541 .

[0077] The traction electric drum 52 and the storage box 54 are installed on the frame 50. The frame 50 is provided with a receiving opening 55. The receiving opening 55 is provided with a rolling roller 56 for adapting and separating the three curved steel belts 53. The rolling roller 56 is provided with a groove for squeezing the male head 531 out of the female head 532.

[0078] When extended outward, the rolling roller 56 adapts the male head 531 and the female head 532 of the three arc-shaped steel belts 53 to each other and surrounds them on the outside of the traction rope 51 to form a rigid structure. The three arc-shaped steel belts 53 still maintain a vertical posture when the male head 531 is out of the groove for the first time, so the three arc-shaped steel belts 53 will remain rigid on the outside of the traction rope 51; when retracted, the rolling roller 56 separates the male head 531 and the female head 532 of the three arc-shaped steel belts 53 from each other and puts them into their respective storage boxes 54. The first time the male head 531 is out of the groove, the three arc-shaped steel belts are pulled by the traction electric roller 52, and the male head 531 will be out of the female head 532, thereby achieving separation.

[0079] A movable rail 57 is installed on the ground, and a running mechanism is provided at the bottom of the frame 50. The running mechanism moves freely on the movable rail 57, which is arranged along the length of the mid-section module 30. Because angle adjustment is required during the upward movement, the movable rail 57 and the running mechanism are provided at the bottom to enable relative position adjustment to accommodate position changes and ensure the stable posture of the mid-section module 30. The auxiliary operation structure assembled by the traction rope 51 and the outer rigid structure can ensure the precise positioning of the center of gravity of the mid-section module 30, thereby ensuring the precise assembly of the support module 10 and assembly module 40, and ensuring the safe construction of the support module 10 and assembly module 40.

[0080] Example 3, as Figures 1 to 10 As shown, the following improvements are made on the basis of the above embodiment:

[0081] Since most traditional ones are high-strength bolt connections, the bolts are bound to be subjected to large shear forces. Since the shear resistance of the bolts is much lower than the tensile resistance, there is bound to be a problem of poor durability. Therefore, an upwardly inclined assembly body 41 is provided at the end of the assembly module 40, and a positioning groove 42 is provided on the lower surface of the assembly body 41, and a lifting component for adapting to the positioning groove 42 is installed on the support body 14.

[0082] The jacking assembly includes a screw rod 15 rotatably mounted on the support module 10 (lower chord 12), a driving block 16 is mounted on the end of the screw rod 15, and a jacking block 17 is provided on the top of the driving block 16 to slide vertically relative to the support body 14. The jacking block 17 is driven to move vertically by adjusting the screw rod 15 through the driving block 16.

[0083] The bottom of the support module 10 is provided with a one-way feed tooth 18, and the interior of the driving block 16 is provided with a horizontal guide groove 161 and a vertical guide groove 162. A moving block 163 that rotates with the end of the screw 15 is installed in the horizontal guide groove 161, and a guide pin 164 is installed on the moving block 163. A locking block 165 is installed in the vertical guide groove 162. The locking block 165 is provided with a lifting groove 167 that is set obliquely downward, and the guide pin 164 slides in the lifting groove 167. The bottom of the locking block 165 is provided with an elastic locking body that is adapted to the one-way feed tooth 18.

[0084] The elastic locking body includes a mounting groove installed at the bottom of the locking block 165 through a spring, a sliding body 168 is provided in the mounting groove, the bottom of the sliding body 168 is exposed to the outside of the mounting groove, and a one-way ratchet is provided at the bottom of the sliding body 168. The one-way ratchet and the one-way feed tooth are adapted to prevent the driving block 16 from retreating and prevent the lifting block 17 from falling.

[0085] The moving block 163 is driven by the feeding of the screw 15 to move horizontally along the horizontal guide groove 161, and then the locking block is moved downward through the guide pin 164 and the lifting groove 167. When the moving block 163 and the driving block 16 are relatively stationary, the two move together. During this period, the sliding body 168 at the bottom of the elastic locking body will be adapted through the one-way ratchet and the one-way feed teeth to prevent the driving block 16 from retreating. The driving block 16 pushes the lifting block 17 upward and enters the positioning groove 42 to realize the socket assembly fit, thereby ensuring the durability, structural strength and safety of the structure.

[0086] Example 4, as Figures 1 to 14 As shown, the following improvements are made on the basis of the above embodiment:

[0087] The top of the middle section module 30 is provided with a U-shaped piece 301, the upper side of the connecting frame 25 is provided with a first arc-shaped slot 251 and a second arc-shaped slot 252, the first arc-shaped slot 251 is fitted with a first turnover piece 253, the second arc-shaped slot 252 is fitted with a second turnover piece 254, the first turnover piece 253 is located on the top of the second turnover piece 254 and is hinged to the second turnover piece 254 at one end and a torsion spring is installed at the hinge point, the end of the first turnover piece 253 away from the second turnover piece 254 is adapted to the first arc-shaped slot 251, and the end of the second turnover piece 254 away from the first turnover piece 253 is adapted to the second arc-shaped slot 252. The side walls of the first arc-shaped slot 251 and the second arc-shaped slot 252 are provided with guide grooves, and guide bodies are fitted in the guide grooves, and the guide bodies are installed on the side of the corresponding turnover piece.

[0088] In use, the outer bottom of the second turnover piece 254 is inclined upward along the side close to the side of the connecting frame 25, the second turnover piece 254 is turned downward, or the gravity of the whole connecting frame 25 forces the second turnover piece 254 to turn outward to open the space between the first turnover piece 253, after the U-shaped piece 301 enters, the second turnover piece 254 is reset into the second arc-shaped slot 252 under the action of the torsion spring to form a surrounding hooking area, and the inner bottom of the second turnover piece 254 is inclined downward along the side close to the side of the connecting frame 25. After assembly is completed, the connecting frame 25 descends relative to the air channel, the first turnover piece 253 is forced to turn outward, the top of the hooking area is opened, the U-shaped piece 301 is separated from the hooking area, after separation, the first turnover piece 253 is reset into the first arc-shaped slot 251 under the action of the torsion spring, and the top of the first turnover piece 253 is inclined downward along the side away from the connecting frame 25.

[0089] In summary, only the preferred specific embodiments of the present application are described above, but the protection scope of the present application is not limited thereto. The alternatives can be partial structure, device, method step alternatives, or complete technical solutions. According to the technical solutions and inventive concepts of the present application, equivalent replacement or change should be covered within the protection scope of the present application.

Claims

1. A method for erecting a large-span steel structure high-altitude passage in the air, characterized in that: The installation steps are as follows: Step 1: Installation of hole support: A support module is installed at the building passage opening. The support module includes an upper chord and a lower chord. The upper chord is fixed to the upper floor slab by anchor bolts, and the lower chord is fixed to the lower floor slab by anchor bolts. A diagonal brace is installed between the upper and lower chords. The length of one end of the support module exposed to the building passage opening is 30-50 cm, and the exposed end is provided with a support body arranged obliquely downward. Step 2: Hanger assembly At the bottom of the lifting equipment, a lifting rope and a hanger are passed through, and a driving wheel assembly is installed on the hanger. There are four driving wheel assemblies, two in a group, and two groups are distributed front and back. The four driving wheel assemblies are located at both ends of the hanger near the side position, and the two driving wheel assemblies on the same side of the hanger drive a wire rope together; Each driving wheel assembly includes a driving wheel, a pressure wheel, and a driving motor. The driving motor is mounted on a hanger and is used to drive the driving wheel to rotate. The pressure wheel is located on top of the driving wheel and is used to compress the steel wire rope between the two. Both ends of the steel wire rope are connected to a connecting frame, which is used to connect to the top of the aerial channel. Step 3: Middle section module assembly The middle section module is assembled on the ground via a tire frame, and assembly modules are set at both ends. The assembly modules and support modules are positioned in correspondence. Install the connecting frame on the top of the middle module; Step 4: Assemble the aerial channel The hoisting equipment drives the hanger upwards via the lifting rope and hook, and lifts the middle section module and the assembly module together. After they reach half the height, the drive motor drives the respective drive wheels to rotate, and all the drive wheels rotate in the same direction. The drive wheels and the pressure wheels adjust the distance between the ends of the wire rope and the hanger to complete the tilt adjustment of the middle section module. The adjustment is made until the projection of the assembly module on the ground is located in the area between the projections of the two support modules on the ground. The hanger continues to move upward until the height of the assembly module at the bottom is greater than the height of the supporting module; The driving motor drives the respective driving wheels to rotate in opposite directions, and all the driving wheels rotate in the same direction. The driving wheels and the pressure wheels adjust the distance between the two ends of the wire rope and the hanger in opposite directions to complete the horizontal adjustment of the middle section module. After the horizontal adjustment is completed, the hanger moves downward, and the middle section module and the assembly module are lowered vertically and smoothly between the two support modules. The aerial passage is obtained by assembling the assembly module and the support module.

2. The method for erecting a large-span steel structure high-altitude passageway in the air according to claim 1, characterized in that: A traction assembly is installed on the ground, which includes a traction rope and a traction electric drum. One end of the traction rope is wound around the traction electric drum, and the other end is installed on the mid-section module. The speed at which the traction electric drum retracts and releases the traction rope is adaptively adjusted according to the change in the position of the traction rope installation point on the mid-section module relative to the traction electric drum. The traction rope and the lifting rope pull the mid-section module to both sides so that the mid-section module always remains stable.

3. The method for erecting a large-span steel structure high-altitude passageway in the air according to claim 2, characterized in that: The outer side of the traction rope is provided with three arc-shaped steel strips, which are wrapped around the outer side of the traction rope. A female head is provided on one side of the three arc-shaped steel strips, and a male head is provided on the other side. The sides of two adjacent arc-shaped steel strips are connected and matched through the female head and the male head. A storage box is provided on the periphery of the traction electric drum, a spiral track groove is provided in the storage box, one end of the arc-shaped steel belt is connected to the end of the traction rope, and a slider is installed at the other end, and the slider is installed in the spiral track groove.

4. The method for aerial erection of a large-span steel structure high-altitude passage according to claim 3, characterized in that: The traction electric drum and the storage box are installed on the frame, and the frame is provided with a receiving opening, and a rolling roller for adapting and separating the three arc-shaped steel belts is installed at the receiving opening; When extended, the rolling roller fits the male and female ends of the three curved steel strips together and surrounds them on the outside of the traction rope to form a rigid structure; when retracted, the rolling roller separates the male and female ends of the three curved steel strips into their respective storage boxes.

5. The method for erecting a large-span steel structure high-altitude passageway in the air according to claim 4, characterized in that: A movable guide rail is installed on the ground, and a walking mechanism is provided at the bottom of the frame. The walking mechanism moves freely on the movable guide rail, and the movable guide rail is provided along the length direction of the middle section module.

6. The method for aerial erection of a large-span steel structure high-altitude passage according to claim 5, characterized in that: An assembly body inclined upward is provided at the end of the assembly module, a positioning groove is provided on the lower surface of the assembly body, and a lifting component adapted to the positioning groove is installed on the support body.

7. The method for aerial erection of a large-span steel structure high-altitude passage according to claim 6, characterized in that: The jacking assembly includes a screw rod rotatably mounted on the support module, a driving block is mounted on the end of the screw rod, and a vertically sliding jacking block is provided on the top of the driving block. The jacking block is driven to move vertically by adjusting the screw rod through the driving block.

8. The method for aerial erection of a large-span steel structure high-altitude passage according to claim 7, characterized in that: The bottom of the supporting module is provided with a one-way feed tooth, and the interior of the driving block is provided with a horizontal guide groove and a vertical guide groove. A moving block that rotates with the end of the screw is installed in the horizontal guide groove, and a guide pin is installed on the moving block. A locking block is installed in the vertical guide groove. The locking block is provided with a lifting groove arranged obliquely downward, and the guide pin slides in the lifting groove. The bottom of the locking block is provided with an elastic locking body that is adapted to the one-way feed tooth.

9. The method for aerial erection of a large-span steel structure high-altitude passage according to claim 8, characterized in that: The elastic locking body includes a mounting groove installed at the bottom of the locking block through a spring, a sliding body is arranged in the mounting groove, the bottom of the sliding body is exposed outside the mounting groove, and a one-way ratchet is arranged at the bottom of the sliding body.

10. The method for aerial erection of a large-span steel structure high-altitude passage according to claim 9, characterized in that: A U-shaped part is installed on the top of the middle section module, and a first arc groove and a second arc groove are provided on the upper side of the connecting frame. The first arc groove is equipped with a first flip part, and the second arc groove is equipped with a second flip part. The first flip part is located at the top of the second flip part and one end is hinged to the second flip part and a torsion spring is installed at the hinge point. One end of the first flip part away from the second flip part is adapted to the first arc groove, and one end of the second flip part away from the first flip part is adapted to the second arc groove.

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