Hoisting tool for mounting newly-built canopy and mounting process of newly-built canopy

Abstract

The invention belongs to the technical field of auxiliary tools for newly-built canopy installation, and discloses a hoisting tool for newly-built canopy installation and an installation technology of a newly-built canopy. The hoisting tool comprises a plurality of carrying pole main beams which are arranged in parallel relatively; the auxiliary cross beam is vertically connected with the carrying pole main beam; the two ends of the auxiliary cross beam are connected to the two adjacent carrying pole main beams respectively; a plurality of auxiliary cross beams are arranged in parallel relatively; the number of the inclined supporting rods is multiple, and every two inclined supporting rods, located between every two adjacent auxiliary cross beams, in the multiple inclined supporting rods intersect with each other; the inclined supporting rod is connected to the intersection connection position of the auxiliary cross beam and the carrying pole main beam. According to the lifting appliance, the multiple carrying pole main beams which are arranged in parallel are arranged, the auxiliary cross beams and the carrying pole main beams are mutually connected to form a stable frame structure, and the inclined supporting rods are arranged, so that the lifting appliance is simple in structure and high in convenience, and the safety and reliability of the whole lifting appliance are enhanced.

Description

Technical Field

[0001] The invention belongs to the technical field of auxiliary tools for installing a new canopy, and in particular relates to a hoisting tool for installing a new canopy and a process for installing the new canopy. Background Art

[0002] With the rapid development of China's economy and the accelerating pace of urbanization, high-speed rail (HSR), a vital component of the modern transportation system, has witnessed not only technological advancements but also profound changes in people's travel patterns and pace of life. Since the beginning of this century, China's HSR, with its astonishing construction speed and exceptional operational quality, has led the global trend in HSR development, building a comprehensive, efficient, and convenient high-speed rail network. After more than a decade of vigorous development, HSR has become a vital link connecting China's major cities and promoting regional economic integration, significantly enhancing the country's comprehensive transportation capabilities and the quality of life of its people.

[0003] The expansion and renovation of high-speed rail stations involves installing new canopies after the old ones have been removed. However, currently, the technical means available for installing new canopies are very limited. This is especially true for the expansion and renovation of operating high-speed rail stations, where the large number of component modules and the high heights required make construction convenience, safety, and reliability difficult to guarantee.

[0004] Therefore, there is an urgent need to provide a hoisting device for installing a new canopy and an installation process for the new canopy that is more convenient, safer and has higher construction reliability.

[0005] In view of this, this application is hereby filed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology, such as low construction convenience, inability to effectively guarantee safety and construction reliability, and the purpose is to provide a lifting device for installing a new canopy.

[0007] Another object of the present invention is to provide a process for installing a new canopy using the above-mentioned lifting device for installing a new canopy.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a lifting tool for installing a new canopy, comprising:

[0009] The shoulder pole main beam comprises a plurality of relatively parallel beams; the shoulder pole main beam is made of H-shaped steel of Q355B;

[0010] An auxiliary crossbeam, the auxiliary crossbeam being vertically connected to the shoulder pole main beam; the two ends of the auxiliary crossbeam being respectively connected to two adjacent shoulder pole main beams; the auxiliary crossbeam comprising a plurality of relatively parallel arranged crossbeams;

[0011] There are multiple diagonal braces, and two of the multiple diagonal braces located between two adjacent auxiliary beams intersect; the diagonal braces are connected at the intersection of the auxiliary beams and the shoulder pole main beam; the diagonal braces and the auxiliary beams are made of H-shaped steel with a material of Q235B.

[0012] According to one embodiment of the present invention, the cross-sectional dimensions of the shoulder pole main beam are 400×400×13×21 mm; and at least two shoulder pole main beams are provided.

[0013] According to one embodiment of the present invention, at least two auxiliary crossbeams are provided; and the extension length of the auxiliary crossbeams along their own axis is smaller than the extension length of the shoulder pole main beam along their own axis.

[0014] According to one embodiment of the present invention, eight upper lifting points are provided on one side of the lifting device; among the eight upper lifting points, four lifting points located in the middle are used to connect the main lifting rope; among the eight upper lifting points, four lifting points located on the outer side are used to connect the slip rope.

[0015] According to one embodiment of the present invention, among the upper hanging points, the upper hanging ears of the four hanging points located in the middle part adopt 300×240×25mm ear plates; among the upper hanging points, the upper hanging ears of the four hanging points located in the middle part are provided with upper hanging holes with a diameter of 42mm, and 20mm stiffening ribs are welded on the side wings, and the material is Q355B.

[0016] According to one embodiment of the present invention, six lower hanging points are provided on the other side of the lifting device; the six lower hanging points are used to connect the canopy unit modules to be installed.

[0017] According to one embodiment of the present invention, the lower hanging ears for connecting the six lower hanging points of the canopy unit module to be installed adopt 240×220×25mm ear plates; the lower hanging ears of the lower hanging points are provided with lower hanging holes with a diameter of 70mm, and the material is Q355B.

[0018] The present invention also provides a process for installing a new canopy, which comprises the above-mentioned hoisting device for installing a new canopy, and the installation method comprises the following steps:

[0019] S1. Preparation before installation;

[0020] S2. Use lifting tools to lift and connect the canopy unit module to the corresponding position of the canopy frame of the dismantled old canopy;

[0021] S3. Removal of auxiliary components;

[0022] S4. Connect the adjacent canopy unit modules on the same side.

[0023] According to one embodiment of the present invention, the lifting equipment includes an upper lifting point and a lower lifting point arranged on different sides; the upper lifting point includes a lifting point located in the middle position and a lifting point located on the outside; the lower lifting point of the lifting equipment adopts a D30 steel wire rope with an 8t shackle to be connected to the main truss steel wire rope of the canopy unit module with a shackle pocket; the crawler crane hook adopts a D48 sling with a D20 shackle to be connected to the lifting point located in the middle position of the upper lifting point of the lifting equipment; the lifting point located on the outside of the upper lifting point of the lifting equipment is connected by four D20 auxiliary adjustment ropes and 8T shackles, and the position is adjusted in conjunction with a 5T fall chain.

[0024] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: In the present invention, a stable frame structure and diagonal bracing rods are formed by setting a plurality of relatively parallel shoulder pole main beams, auxiliary cross beams and shoulder pole main beams that are interconnected, and the structure is simple and convenient; when hoisting a plurality of component unit modules, these modules can be reasonably distributed on a plurality of shoulder pole main beams, so that the force is more uniform, avoiding structural instability due to excessive local force, thereby improving the safety and reliability of construction.

[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0027] Figure 1 This is a structural diagram of a lifting device in an embodiment of the present invention;

[0028] Figure 2 Schematic diagram of the structure of the lifting device in the embodiment of the present invention from a formal perspective;

[0029] Figure 3 A schematic diagram of the structural state of the lifting tool in the embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the overall structure of a newly built canopy after installation is completed in an embodiment of the present invention;

[0031] Figure 5 Schematic diagram of the structure of the upper lifting lug in an embodiment of the present invention;

[0032] Figure 6 Schematic diagram of the structure of the lower lifting lug in an embodiment of the present invention;

[0033] Figure 7 Schematic diagram of the arrangement of adjacent canopy unit modules in an embodiment of the present invention;

[0034] Figure 8 This is a structural diagram of a clamp in an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the connection position of the code plate in an embodiment of the present invention;

[0036] Figure 10 A schematic diagram of a state in which fine adjustment is performed using an L-shaped plate in an embodiment of the present invention;

[0037] Figure 11 Schematic diagram of the arrangement of the standard module hanging point positions in an embodiment of the present invention;

[0038] Figure 12 Schematic diagram of the arrangement of the non-standard module hanging point positions in an embodiment of the present invention;

[0039] Figure 13 The present invention is a flowchart of a new canopy installation process according to an embodiment of the present invention.

[0040] Description of the main components in the figure:

[0041] 1. Carrying pole main beam; 2. Auxiliary crossbeam; 3. Diagonal bracing rod; 4. Upper hanging point; 41. Upper hanging lug; 42. Upper hanging hole; 43. Stiffening rib; 5. Lower hanging point; 51. Lower hanging lug; 52. Lower hanging hole; 6. Triangular truss beam; 7. Combined steel column; 8. Steel cable; 9. Hoop; 91. Code plate; 92. L-shaped plate.

[0042] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] This embodiment combines the actual working conditions of the new canopy at Yizhuang Station of the Beijing-Tianjin-Hebei intercity railway to develop a lifting device for the installation of the new canopy, so as to realize the installation process of the new canopy on the high-speed railway platform within the skylight point of the operating line efficiently and quickly without stopping the operation by utilizing the skylight point.

[0047] The Beijing-Tianjin Intercity Railway is an important part of the intercity rail transit network in the Bohai Rim region of China. It is the first high-standard high-speed railway with a design speed of 350 kilometers per hour. Yizhuang Station is located in Yizhuang Development Zone, Taihu Town, Tongzhou District, Beijing. It was completed in August 2008. Yizhuang Station adopts a horizontal station type with a center mileage of K22+426. The main line is not close to the platform and there are two arrival and departure lines. The line spacing between the main lines is 5.0m. Due to the installation of platform canopy pillars and drainage facilities between the main line and the arrival and departure lines, the line spacing is 6.5m. In order to meet the current operational needs, the old canopy needs to be dismantled and updated. The solution of this application is to install a new canopy on the canopy frame where the old canopy has been dismantled. The projected area of the new canopy is 11,834.72 square meters.

[0048] like Figures 1 to 13 As shown, the hoisting tool for installing a new canopy according to the present invention comprises:

[0049] The shoulder pole main beam 1 includes a plurality of relatively parallel beams; the shoulder pole main beam 1 is made of H-shaped steel of Q355B;

[0050] Auxiliary crossbeam 2, the auxiliary crossbeam 2 is vertically connected to the shoulder pole main beam 1; the two ends of the auxiliary crossbeam 2 are respectively connected to two adjacent shoulder pole main beams 1; the auxiliary crossbeam 2 includes multiple (at least two) relatively parallel arranged crossbeams;

[0051] The diagonal brace rods 3 are provided with a plurality of (at least two) diagonal brace rods 3, and two diagonal brace rods 3 located between two adjacent auxiliary beams 2 intersect with each other; the diagonal brace rods 3 are connected at the intersection of the auxiliary beams 2 and the shoulder pole main beam 1; the diagonal brace rods 3 and the auxiliary beams 2 are made of H-shaped steel with a material of Q235B.

[0052] In the present invention, a stable frame structure and an arrangement of diagonal braces 3 are formed by arranging a plurality of relatively parallel shoulder pole main beams 1, and auxiliary cross beams 2 are interconnected with the shoulder pole main beam 1. The structure is simple and convenient. The integrity and reliability of the entire lifting equipment are enhanced. When lifting a plurality of component unit modules, these modules can be reasonably distributed on a plurality of shoulder pole main beams 1, so that the force is more uniform, avoiding structural instability due to excessive local force, thereby improving the safety and reliability of construction.

[0053] In a specific implementation of this embodiment, the auxiliary crossbeam 2 is connected to the shoulder pole main beam 1 by welding; the diagonal brace 3 is connected to the shoulder pole main beam 1 and the auxiliary crossbeam 2 by welding.

[0054] In a specific implementation of this embodiment, the cross-sectional dimensions of the shoulder pole main beam 1 are 400×400×13×21 mm; at least two shoulder pole main beams 1 are provided; the cross-sectional dimensions of the auxiliary cross beam 2 and / or the diagonal support rod 3 are 200×200×8×12 mm.

[0055] In a specific implementation of this embodiment, at least two auxiliary crossbeams 2 are provided; the extension length of the auxiliary crossbeam 2 along its own (auxiliary crossbeam 2) axis direction is smaller than the extension length of the shoulder pole main beam 1 along its own (shoulder pole main beam 1) axis direction.

[0056] In a specific implementation of this embodiment, the lifting equipment includes two of the carrying pole main beams 1, two of the auxiliary cross beams 2 and two of the diagonal support rods 3; along a direction perpendicular to the extension direction of the carrying pole main beam 1 and perpendicular to the extension direction of the auxiliary cross beam 2, the two of the carrying pole main beams 1 and the two of the auxiliary cross beams 2 form a closed "mouth"-shaped space; the two of the diagonal support rods 3 intersect and are arranged in the "mouth"-shaped space; the ends of the diagonal support rods 3 are connected at the position where the carrying pole main beam 1 and the auxiliary cross beam 2 intersect.

[0057] In a specific implementation of this embodiment, along a direction perpendicular to the extension direction of the shoulder pole main beam 1 and perpendicular to the extension direction of the auxiliary crossbeam 2, the straight line where the center of gravity of the lifting device itself is located is not collinear with the straight line where the intersection of the two diagonal braces 3 is located.

[0058] In a specific implementation of this embodiment, along a direction perpendicular to the extension direction of the shoulder pole main beam 1 and perpendicular to the extension direction of the auxiliary crossbeam 2, the straight line where the center of gravity of the lifting device itself is located and the straight line where the intersection of the two diagonal braces 3 is located are both located on the symmetry axis of the two shoulder pole main beams 1;

[0059] The straight line where the center of gravity of the lifting device is located intersects the symmetry axes of the two auxiliary beams 2 at right angles.

[0060] In a specific implementation of this embodiment, the weld grades of the welds between the shoulder pole main beam 1, the auxiliary cross beam 2 and the diagonal brace 3 are all level one full penetration.

[0061] In a specific implementation of this embodiment, eight upper hanging points 4 are provided on one side of the lifting device (on the shoulder pole main beam 1) (four upper hanging points 4 are provided on a single shoulder pole main beam 1, and eight upper hanging points 4 are provided on two shoulder pole main beams 1 in total); among the eight upper hanging points 4, the four hanging points in the middle are used to connect the main lifting rope; among the eight upper hanging points 4, the four hanging points on the outside are used to connect the slip rope; the other end of the slip rope is provided on the fall chain (hand winch).

[0062] Please see the attached Figure 1 To the attached Figure 3 and attached Figure 5 In a specific implementation of this embodiment, the upper hanging ears 41 of the four hanging points in the middle part of the upper hanging points 4 adopt 300×240×25mm ear plates; the upper hanging ears 41 of the four hanging points in the middle part of the upper hanging points 4 are provided with upper hanging holes 42 with a diameter of 42mm, and the side wings are welded with stiffening ribs 43 (rib plates) with a thickness of 20mm, and the material is Q355B.

[0063] In the present invention, by providing the stiffening ribs 43 , the connection strength and the bearing capacity of the upper hanging point 4 are improved.

[0064] In a specific implementation of this embodiment, the weld grade between the upper lifting ears 41 of the four lifting points in the middle part of the upper lifting point 4 and the lifting equipment (the shoulder pole main beam 1) is first-level full penetration welding; the weld grade of the welds between the side-welded stiffening ribs 43 (rib plates) and the upper lifting ears (of the four lifting points in the middle part of the upper lifting point 4) and the lifting equipment (the shoulder pole main beam 1) are both second-level full penetration.

[0065] In a specific implementation of this embodiment, the stiffening ribs 43 welded on the upper lifting ears 41 of the four lifting points located in the middle part of the upper hanging points 4 include: four in the along-track direction (parallel to the extension direction of the shoulder pole main beam 1 / parallel to the extension direction of the high-speed rail track), and two in the perpendicular-track direction (perpendicular to the extension direction of the shoulder pole main beam 1 / parallel to the extension direction of the auxiliary crossbeam 2 / perpendicular to the extension direction of the high-speed rail track); the four stiffening ribs 43 in the along-track direction and the two stiffening ribs 43 in the perpendicular-track direction are arranged in sequence and at intervals around the ear plate; the four stiffening ribs 43 in the along-track direction are arranged in pairs on opposite sides of the ear plate; the two stiffening ribs 43 in the perpendicular-track direction are arranged on opposite sides of the ear plate.

[0066] In a specific embodiment of the present invention, the ear plate is a plate-shaped structural member; the thickness direction (width direction) of the ear plate is parallel to the extension direction of the shoulder pole main beam 1 of the lifting device (perpendicular to the extension direction of the auxiliary crossbeam 2); the four stiffening ribs 43 in the along-track direction are arranged oppositely on two vertical surfaces perpendicular to the thickness direction; the length direction of the ear plate is perpendicular to the extension direction of the shoulder pole main beam 1 of the lifting device (parallel to the extension direction of the auxiliary crossbeam 2); the two stiffeners in the vertical track direction are relatively arranged on two side surfaces perpendicular to the length direction.

[0067] Please see the attached Figure 1 To the attached Figure 3 In a specific implementation of this embodiment, six lower hanging points 5 are provided on the other side of the lifting device (the other side of the lifting device relative to the side where the upper hanging point 4 is provided); the six lower hanging points 5 are used to connect the canopy unit modules to be installed.

[0068] Please see the attached Figure 2 , Attachment Figure 5 and attached Figure 6 In a specific implementation of this embodiment, the lower hanging ears 51 used to connect the six lower hanging points 5 of the canopy unit module to be installed adopt 240×220×25mm ear plates; the lower hanging ears 51 of the lower hanging points 5 are provided with lower hanging holes 52 with a diameter of 70mm, and the material is Q355B.

[0069] In a specific implementation of this embodiment, the weld grade of the weld between the lower lifting ear 51 of the lower lifting point 5 and the lifting device (the shoulder pole main beam 1) is level two full penetration.

[0070] Please see the attached Figure 11 and attached Figure 12, for the newly built awning standard module, the overall layout of the awning installation lifting points is shown in the figure. The awning unit module (a single standard module therein) has a total of six main trusses. At the position of the upper chord lifting points of each truss, 2 short-head D30 steel wire ropes are used and interconnected with 8T shackles to sling the upper chord rod of the main truss. During the construction process, a chain block (hand-operated hoist) is used for leveling; at least 0.5 mm thick iron sheets are padded on the contact surface between the sling and the main truss to protect the steel wire rope; the iron sheets are tied with iron wires and fixed firmly to the steel wire rope to prevent it from falling off.

[0071] Please refer to the appendix Figure 11 , in a specific implementation manner of this embodiment, the awning unit module (a single non-standard module therein) directly uses a steel wire rope to sling the main truss for hoisting; the non-standard module (cantilever module) is provided with 4 lifting points, among which 2 hoisting steel wire ropes are the main ropes, and the other 2 are adjusted through the chain blocks (hand-operated hoists) connected thereto.

[0072] In a specific implementation manner of this embodiment, during the hoisting process of the standard module by the hoisting equipment, the deformation amount of the standard module in the X direction is 2.11 mm, the deformation amount in the Y direction is 8.72 mm, and the deformation amount in the Z direction is -24.44 mm. Without considering the auxiliary rope, the maximum cable force is 126.94 KN, and considering the auxiliary rope, the maximum cable force is 103.48 KN, and the maximum combined stress ratio of the structure is 0.24; the maximum deformation during the installation process is 24.44 mm < L / 250 = 130.8 mm (L is the maximum span of the structure), and this deformation is the deformation during the hoisting process; the maximum stress ratio 0.24 < 1.0, and the standard module and its spreader can meet the requirements of hoisting construction.

[0073] In a specific implementation manner of this embodiment, during the hoisting process of the non-standard module, the deformation amount of the non-standard module in the X direction is 1.94 mm, the deformation amount in the Y direction is 1.04 mm, and the deformation amount in the Z direction is 4.27 mm. The maximum cable force for hoisting at the cantilever position is 11.6 KN, and the maximum combined stress ratio of the structure is 0.16; the maximum deformation during the installation process is 4.27 mm < L / 125 = 40 mm (L is the cantilever span), and this deformation is the deformation during the hoisting process; the maximum stress ratio 0.16 < 1.0, and the non-standard module can meet the requirements of hoisting construction.

[0074] In a specific implementation manner of this embodiment, during the hoisting of the awning unit module by the hoisting tool, the deformation amount of the hoisting tool in the X direction is 11.1 mm, the deformation amount in the Y direction is 9.8 mm, the deformation amount in the Z direction is -16.9 mm, the maximum stress ratio of the internal cross beam is 0.26, and the maximum stress ratio of the main beam 1 of the lifting beam is 0.15; the maximum deformation during installation is 16.9 mm < L / 250 = 24.4 mm (L is the maximum span of the structure), and this deformation is the deformation during hoisting; the maximum stress ratio 0.26 < 1.0, and the hoisting tool can meet the hoisting construction requirements.

[0075] Please refer to the appendix Figure 13 , the present invention also provides an installation process for a new awning applying the above-mentioned hoisting tool for installing a new awning. The installation method includes the steps: S1. Preparation work before installation; S2. Using the hoisting tool, hoist and connect the awning unit module to the corresponding position of the awning frame of the old awning that has been removed; S3. Removal of auxiliary components; S4. Connect adjacent awning unit modules on the same side.

[0076] In the present invention, by pre-assembling the awning unit module on the ground in advance and strictly inspecting the quality of each component, potential quality problems can be detected and solved in advance, which can significantly shorten the construction duration during the skylight point and enable the subsequent construction to proceed smoothly and efficiently; timely removing the used auxiliary components not only creates a good working space for the subsequent sealing and decoration of the awning, but also can be reused for the installation of subsequent awning unit modules.

[0077] Please refer to the appendix Figure 1 to appendix Figure 6 , in a specific implementation manner of this embodiment, the hoisting tool includes upper lifting points 4 and lower lifting points 5 arranged on different sides; the upper lifting points 4 include a lifting point in the middle position and lifting points on the outside; the lower lifting points 5 of the hoisting tool are connected with the main truss steel wire rope of the awning unit module by using D30 steel wire ropes in cooperation with 8t shackles; the main hook of the crawler crane is connected with the lifting point in the middle position of the upper lifting points 4 of the hoisting tool by using D48 slings in cooperation with D20 shackles; four D20 auxiliary adjusting lifting ropes (guy ropes) are pulled and connected to the lifting points on the outside of the upper lifting points 4 of the hoisting tool, and a 5T chain block is used for position adjustment; the shackle is a D-shaped alloy steel shackle.

[0078] Please refer to the appendix Figure 4In a specific implementation of this embodiment, the newly built canopy is a bottom-hanging, bilaterally symmetrical canopy, and the newly built canopy is installed on the canopy frame after the old canopy has been removed. The canopy frame after the old canopy has been removed includes: a triangular truss beam 6, a combined steel column 7 vertically connected to the triangular truss beam 6, a steel cable 8 connected to one end of the combined steel column 7 away from the ground and to the end of the triangular truss beam 6 away from the combined steel column 7, and a bottom-hanging purlin support connected to the triangular truss beam 6.

[0079] In a specific implementation of this embodiment, step S2 utilizes symmetrical construction. Symmetrical construction evenly distributes external forces such as gravity and hoisting tension on both sides of the structure, effectively preventing structural deformation or damage caused by uneven force, effectively ensuring the stability of the existing canopy frame structure, and providing reliable protection for the safe operation of high-speed rail. Furthermore, during the symmetrical construction process, the installation conditions on both sides can be compared with each other, which helps improve installation accuracy, effectively reduces the accumulation of installation errors, and ensures that the entire canopy is installed to a high standard.

[0080] In a specific implementation of this embodiment, the newly built canopy structure adopts a plane tube truss structure, the main cross-section of which is 160*100*10 (square tube steel), 160*100*12 (square tube steel), Φ76*4, and the material is Q355B.

[0081] In a specific implementation of this embodiment, the triangular truss beam 6 is a vertical space triangular truss beam 6; the main truss spacing is 3.00m and 1.25m, the structural clear span is 30.30m, the cantilever on both sides is 3.80m, the total length of the canopy structure is 435.10m, and the total width is 13.50m; the cantilever ends on both sides of the structure and the side near the track use P45*4 steel pipes as horizontal supports, and the material is Q355B; UU25 finished steel pull rods are used on the side away from the track.

[0082] In a specific implementation of this embodiment, step S1 is completed within the skylight point before step S2, and step S1 includes: S1.1, pre-processing of the canopy frame after the old canopy has been removed; S1.2, pre-processing of the newly built canopy; S1.3, roadbed processing for the crawler crane's travel operation.

[0083] In a specific implementation of this embodiment, the steps S1.1, S1.2 and S1.3 may be performed simultaneously, or may be performed one by one (including first S1.3 or first S1.2 and then S1.1).

[0084] In actual construction, the installation period of the main structure of the new canopy is from July 1, 2024 to August 30, 2024.

[0085] In a specific implementation of this embodiment, the step S1.1 is completed during the skylight period, and the step S1.1 includes: S1.1.1, measuring, inspecting and renovating the lower purlins of the canopy frame after the old canopy has been removed; S1.1.2, installing, polishing and testing the hanging columns; wherein the steps S1.1.1 and S1.1.2 can be run one by one (including S1.1.2 first, then S1.1.1), or can be run synchronously.

[0086] In actual construction, the construction time of step S1.1 is from July 1, 2024 to August 15, 2024, with a total of 46 construction periods; for step S1.1.1, a 300-minute or 180-minute skylight point is used.

[0087] In a specific implementation of this embodiment, the step S1.1.1 includes: removing the original purlin brackets that cannot be reused, and installing new purlin brackets.

[0088] In a specific implementation of this embodiment, the hanging column is a structural rod with a cross-section of 100*80*8mm and a material of Q355B; the thickness of the stiffening plate is 8mm and the material is Q355B; there are 6 stiffening plates corresponding to a single hanging column, and 4 of the 6 stiffening plates are set in the along-track direction (the direction parallel to the track arrangement direction), and the other 2 stiffening plates are set in the vertical track direction (the direction perpendicular to the track arrangement direction); for a specific implementation method, the along-track direction refers to the east-west direction; the vertical track direction refers to the north-south direction.

[0089] In a specific implementation of this embodiment, the newly built canopy and the lower hanging purlin supports of the canopy frame after the old canopy has been removed are connected by hanging columns and stiffeners; according to the actual situation on site, the existing canopy frame (the canopy frame after the old canopy has been removed) has a total of 11 purlin supports corresponding to the position of a single canopy unit module, 5 of which are used in the newly built canopy structure, 1 is re-welded, and a total of 6 existing canopy purlin supports are removed from the lower chord of the single-side truss.

[0090] In a specific implementation of this embodiment, (on one side) for the five purlins directly used as connection nodes: first, inspect the existing purlins; if qualified, renovate the purlin nodes to make them regular and aesthetically pleasing; after the purlin nodes are renovated, polish the lower surface of the connection. While the existing canopy purlins are being repaired and polished, measure the existing purlin support plates, and use the skylights before the module is hoisted to pre-cut, install, and test the suspenders. After the suspenders pass the inspection, install the new canopy module. After the welding of the suspenders is completed and the flaw detection inspection is passed, install the suspender stiffeners.

[0091] In a specific implementation of this embodiment, (on one side) for a re-welded purlin support used as a connection node: the middle part of the newly installed purlin support node is a P152*8 round tube, and stiffening plates are set on both sides. The structure is consistent with the original purlin support after processing.

[0092] In a specific implementation of this embodiment, the horizontal distance between the newly built canopy structure and the contact network is 1236 mm, the vertical distance is 1946 mm, and the straight-line distance is 2305 mm.

[0093] In actual construction, the construction time of step S1.2 is from July 10, 2024 to August 25, 2024.

[0094] In a specific implementation of this embodiment, step S1.2 includes: S1.2.1, assembling, connecting, painting and checking the newly built canopy on the ground; S1.2.2, tying the canopy unit modules with steel wire ropes; S1.2.3, leveling the canopy unit modules on the ground.

[0095] In the present invention, the pretreatment of the canopy unit module is completed on the ground, which reduces the construction risk and improves the construction efficiency compared with high-altitude operations; the ground environment space is larger, which is convenient for refined construction operations and effectively ensures the quality of the assembly and welding of the canopy unit module.

[0096] In a specific implementation of this embodiment, step S1.2.1 uses a truss assembly cradle for assembly; the truss assembly cradle uses a cross-section of no less than H150*150 (H-shaped steel), 150*150 (square tube steel), and P60*3.4 steel (round tube steel with an outer diameter of 60mm and a wall thickness of 3.4mm). L30 angle steel can be used to set supports at local locations of the cradle. The lower chord of the cradle overhead truss is 500mm from the ground, and a single truss is set at no less than 3 points; a steel cradle with a length greater than 500mm is placed horizontally on the concrete floor as a base, and a cross-shaped steel cradle is used as a base on the unhardened ground. The main truss is assembled in two sections in the factory workshop. After assembly, it is assembled on site using 50T and 25T truck cranes. The newly built canopy roof cable troughs, rainwater pipes, and gutters are assembled on the ground simultaneously with the steel structure.

[0097] In a specific implementation of this embodiment, step S1.3 includes laying 300mm of concrete along the crawler crane's planned travel path and installing HRB400-grade, double-layer, bidirectional steel bars (Ø12@250 mm) at the lifting station. Areas containing pipelines are reinforced with concrete overlays and protected with roadbed boxes. Trees in ditches within the lifting area have been removed and backfilled in coordination with relevant authorities.

[0098] In a specific implementation of this embodiment, the crawler crane includes four auxiliary legs, and steel sleepers are placed between the auxiliary legs and the ground.

[0099] In a specific implementation of this embodiment, the symmetrical construction described in step S2 refers to the asymmetrical installation of at most three canopy unit modules on both sides of the canopy frame. In actual construction, due to the influence of various factors, such as construction site conditions, equipment operation convenience, and differences in construction difficulty at different locations, it is difficult to achieve complete synchronization of canopy unit modules on both sides. The solution of the present invention allows asymmetrical installation to give construction a certain degree of flexibility, can better adapt to the actual situation on site, and speed up the overall construction progress while ensuring construction quality, reducing the time wasted waiting for the two sides to be completely synchronized; limiting the degree of asymmetrical installation (at most three intervals) to ensure that the installation progress of the canopy unit modules on both sides does not differ too much, ensuring the relative balance and stability of the canopy structure during construction, reducing the risk of uneven structural force caused by excessive differences in the installation progress on both sides, and helping to ensure construction safety; at the same time, it is also conducive to the reasonable scheduling and arrangement of construction resources, avoiding the situation where resources are idle due to excessive advancement on one side or resource shortages on the other side due to slow progress, making the entire construction process more orderly and efficient.

[0100] In a specific implementation of this embodiment, two crawler cranes are used for symmetrical construction; the model of the crawler cranes is XGC400.

[0101] In a specific implementation of this embodiment, the awning unit modules are installed from one end to the other end (from west to east) in a predetermined direction; for the installation of the awning unit modules on the same side, after the previous module is installed, its cantilever is ready for installation and can be installed immediately or subsequently; in principle, the awning unit modules on both sides (the north and south sides) need to be installed simultaneously, but a certain degree of asymmetric installation is allowed; for example, when the fifth awning unit module is installed on one side (for example, the north side), the other side (the south side) is installing the second awning unit module at the slowest and the eighth awning unit module at the fastest, that is, the asymmetrically installed awning unit modules on both sides are spaced at most three apart.

[0102] In a specific implementation of this embodiment, step S2 includes: S2.1, lifting the canopy unit module to 300 mm below the installation elevation, and horizontally moving it to the bottom of the triangular truss beam 6; S2.2, lifting the canopy unit module 300 mm, tightening it, and connecting it to the canopy frame.

[0103] In a specific implementation of this embodiment, before hoisting the canopy unit module, a trial hoisting of the module is performed using the skylight point.

[0104] In a specific implementation of this embodiment, step S2.1 includes: during the horizontal movement, the posture of the canopy unit module is controlled by the sliding ropes of three 1T manual hoists set on each side; the manual hoists can perform vertical fine-tuning and horizontal fine-tuning; during the fine-tuning process using the manual hoists, the crawler crane maintains the lifting posture unchanged; the sliding rope uses a hemp rope with a diameter of 14 mm.

[0105] In a specific implementation of this embodiment, step S2.2 includes: using hand hoists on both sides to perform leveling and tightening, performing temporary connection through the clamp 9, and welding connection of the connection nodes.

[0106] Specifically, after the canopy module is fine-tuned into position using a hoist, a temporary connection is made by installing a clamp 9 node. The clamp 9 is connected to the intersection of the lower chord and web of the existing canopy main truss, 255mm from the center of the existing main purlin support. The clamp 9 is made of a combination of round steel and square tube, with cross-sections of Ø18 round steel and 100*80*8 (square steel). It is tightened with a 10mm spring washer and M18 double nuts. After the double nuts are installed, 0.3mm wire is tied to the lower threads of the nuts to prevent them from falling off. After the clamp 9 node is installed, welders weld the truss suspenders to the newly built canopy truss.

[0107] According to actual construction calculations, the use of clamp 9 connection, the maximum deformation of the new canopy module in the mid-span is 130.8mm, the overall maximum stress ratio of the structure is 0.67<1, the maximum stress ratio of the main truss is 0.37<1, and the maximum stress ratio of the secondary truss at the clamp 9 position is 0.67<1, which can meet the construction needs.

[0108] In a specific implementation of this embodiment, step S3 includes: unhooking the unit module and removing the hand chain hoist.

[0109] Please see the attached Figure 8 Specifically, after the 9-node connection of the clamp is installed, the crawler crane can release the hook.

[0110] In a specific implementation of this embodiment, the crawler crane releases the hook in a gradual unloading manner; more specifically, the order of the crawler crane releasing the hook is: the crawler crane releases the hook in the order of 10% → 20% → 30% → 40% of the total load, and gradually unloads the force.

[0111] In a specific implementation of this embodiment, step S4 includes: welding stiffeners at the connection nodes, (after welding is completed and welding quality inspection is completed) removing the clamps 9, and connecting adjacent canopy unit modules on the same side by welding.

[0112] Please see the attached Figure 8Specifically, after the installation of the hoop 9 is completed, the connection point between the suspender and the newly built truss is welded. After the welding is completed and the flaw detection is passed, the hoop 9 is removed.

[0113] In a specific implementation of this embodiment, (corresponding to step S4), after the hoisting module is welded to the existing main truss, the welding connection of the rods between the unit modules is started. Before welding the rods between the modules, L-shaped plates 92 and 1T jacks are used for fine-tuning. After the adjustment is completed, welding is carried out. After welding is completed, the weld position is ground and inspected for flaws. After passing the flaw detection, the weld position is painted.

[0114] Please see the attached Figure 10 In a specific implementation of this embodiment, one end of the L-shaped plate 92 is connected to the canopy unit module; the jack is supported on the other end of the L-shaped plate 92; the material of the L-shaped adjustment plate is Q235.

[0115] In a specific implementation of this embodiment, the canopy roof is assembled on the ground, the welding connection points are polished and inspected, the unit modules are accepted and qualified, and the welding of the suspending column under the purlin is completed and tested and qualified before the unit modules can be hoisted; the crawler crane is in place and connected to the shoulder pole sling, and personnel, materials, and machinery under the operating radius are cleared. The crawler crane hooks 500mm and checks the shoulder pole connection. After passing the inspection, wait for the skylight point; at the first skylight point, the crawler crane hooks the truss, the lowest point is 16.3m from the ground, the boom rotates 30°, and the roof is adjusted to the position using the slip rope. The crawler crane continues to rotate the arm until it is aligned with the installation position, the crawler crane leans forward, and the roof is in place (corresponding to step S2.1); the hoist is used to adjust the positioning at the node, and the clamp 9 is fixed and installed, and then the welding of the suspending column and the new canopy connection point is started (corresponding to step S2.2). After the clamp 9 is installed, the crawler crane removes the hook and cleans the site (corresponding to step S3), and the first skylight is completed. The next skylight is used to detect the welds at the connection points, and the butt welds between the unit modules are constructed simultaneously (corresponding to step S4).

[0116] In a specific implementation of this embodiment, the newly built canopy includes: purlins and roof panels, and the roof panels are fixed to the purlins by self-tapping screws; there are windproof pressure sheets and waterproof rubber pads between the self-tapping screws and the roof panels; the opposite ends of the roof panels have different widths; when multiple roof panels are laid, the larger width edge of the roof panel is pressed on the smaller width edge of the adjacent roof panel.

[0117] In a specific implementation of this embodiment, the end of the roof panel is fixed with three self-tapping screws. The edgemost of the three self-tapping screws is shared with the adjacent roof panel (fixing the pressed part of the two roof panels), and the other two are used to fix the roof panel itself; the specification of the self-tapping screw is ST6.3*75, and the thickness of the lower keel of the roof panel is 2.2mm.

[0118] In a specific implementation of this embodiment, the purlin is a galvanized Z-shaped purlin with a cross-section of 140*50*20*2; adjacent purlins are provided with round steel tie rods with a diameter of 12 and support rods with a diameter of 32 and a wall thickness of 3.5; the material of the tie rods and support rods are both Q235B.

[0119] In a specific implementation of this embodiment, the roof gutter system and rainwater pipe are installed simultaneously with the ground assembly of the canopy steel structure, and after installation, they are hoisted to the roof along with the canopy.

[0120] In a specific implementation of this embodiment, the installation of the canopy roof panels is carried out in a continuous manner along with the canopy steel structure, and the finishing work of the anti-falling, horseway and roof system is carried out in a continuous manner after the single-span roof panels are completed.

[0121] In a specific implementation of this example, the construction and installation of ancillary equipment includes: canopy lighting, pipelines, rainwater pipes, information equipment, replacement of damaged platform stone, replacement of stainless steel railings, escalator canopy installation, escalator installation and removal, and installation of static floor-mounted signs. The canopy siphon rainwater pipes and cable troughs are hoisted integrally with the canopy steel structure ground assembly. Other work is carried out simultaneously within the skylight after canopy installation.

[0122] In actual construction, the installation of roof panels and platform canopy accessories will be carried out from July 10, 2024 to September 10, 2024.

[0123] In a specific implementation of this embodiment, the main construction machinery for installing the canopy includes (2 units) 400T crawler cranes, (1 unit) 100T truck cranes, (2 units) 50T truck cranes, (3 units) 25T truck cranes, (16 units) hoists (fall chains), etc.

[0124] In a specific implementation of this embodiment, the main construction equipment for installing the roof panel includes (2) 25T truck cranes, (1) 9m truck crane, argon arc welding machine, hand drill, cutting machine, etc.

[0125] In a specific implementation of this embodiment, a 400-ton crawler crane is used to hoist the canopy structure as a whole unit module by utilizing the construction skylight point, and the crawler crane is positioned on both sides to remove the construction hardened road surface;

[0126] Please see the attached Figure 7 , Attachment Figure 11 and attached Figure 12, the single-sided canopy unit module includes: standard modules and non-standard modules (cantilever modules); the standard modules are hoisted using hoisting equipment; 12 lashing lifting points are provided for each single standard module, and 4 lashing points are provided for the cantilever module. For the cantilever module: the就位方式 of the cantilever module is the same as that of the standard module, and during its installation, the installation of the hoop 9 joints and the welding connection of the spacer plates 91 between the main trusses need to be completed within the skylight. The upper chord of its main truss is temporarily connected by the spacer plates 91, and the spacer plates 91 and the main truss are welded with full penetration by groove. After the installation and pre-tightening of the hoop 9 joints are completed and the connection of the upper chord spacer plates 91 of the main truss is completed, the cantilever truss can be unhooked.

[0127] Please refer to the appendix Figure 9 , in a specific implementation manner of this embodiment, the size of the spacer plate 91 is 160*50*10mm; there are 6 main trusses at the cantilever position, and 1 spacer plate 91 is provided at the upper chord of the end of each truss to connect with the adjacent span structure.

[0128] According to the actual construction calculation, using the connection of the hoop 9 and the temporary spacer plate 91, the maximum deformation of the newly built canopy cantilever structure is 6.03mm < L / 125 = 30.4mm, and the overall maximum stress ratio of the structure is 0.39 < 1, which can meet the construction requirements.

[0129] In a specific implementation manner of this embodiment, for the weight statistics of the standard weight module: the main structure is 22.6T; purlin supports and purlins are 2.0T; gutter is 1.5T; paint and fireproof coating are 2.0T; construction load is 1.0T; total is 29.1T; the weight of the hook, rigging and spreader is 15.0T; therefore, the hoisting weight of the standard module unit is 44.1T; in a specific implementation manner of this embodiment, for the weight statistics of the cantilever module: the main structure is 3.5T; purlin supports and purlins are 0.3T; gutter is 0.2T; paint and fireproof coating are 0.3T; construction load is 1.0T; total is 5.3T; the cantilever module is directly hoisted by wire rope lashing, and the weight of the hoisting hook, wire rope and shackle is 6.2T; therefore, the hoisting weight of the cantilever module unit is 11.5T.

[0130] In a specific implementation manner of this embodiment, the space between two adjacent triangular truss beams 6 is one span, and the standard modules of a single canopy unit module are arranged at the position of one span, and multiple standard modules are arranged in sequence along each span; for the non-standard module, only one end is connected to the canopy frame to form a cantilever structure.

[0131] In a specific implementation manner of this embodiment, the outer structure of the canopy is coated with an outer coating; the outer coating of the canopy structure mainly includes: anti-corrosion primer: 2 coats of waterborne inorganic zinc-rich primer, the dry film thickness is not less than 70μm, and the zinc content is required to be ≥80%; intermediate paint: 1 coat of epoxy mica iron intermediate paint, the dry film thickness is not less than 70μm; topcoat: 3 coats of acrylic polyurethane.

[0132] In a specific implementation of this embodiment, the thickness of the outer coating of the canopy structure is not less than 100 μm, and the fire resistance time of the outer coating can reach at least 1.5 hours.

[0133] Please see the attached Figure 7 In a specific implementation of this embodiment, the standard modules of the awning unit modules are divided into 13 blocks from west to east; the north side is marked as A and the south side is marked as B on the north and south sides; for example, the 5th block on the north side is marked as Y5A; for example, the 11th block on the south side is marked as Y11B, etc.; a non-standard module (cantilever module) is provided at both ends of the awning unit module on one side (for example, the north side), namely, the Y1A cantilever close to Y1A, and the Y13A cantilever close to Y13A; for the awning unit module on the south side, it includes the Y1B cantilever close to Y1B, and the Y13B cantilever close to Y13B.

[0134] In a specific implementation of this embodiment, the size of the standard unit module is 32.7m (length) * 13.6m (width) * 1.2m (height); the size of the non-standard module is 5.0m (length) * 13.6m (width) * 1.2m (height); the south side structure of the newly built canopy is symmetrical with the north side structure.

[0135] For the installation of awning roof panels:

[0136] 1. Construction of corrosion-resistant corrugated steel plates on the roof surface

[0137] Construction process: laying out the lines → transporting and installing → fixing and paving the roof panels → patching → edge trimming and flashing installation → roof cleaning → self-inspection and rectification → reporting for inspection.

[0138] Before construction, the metal roof must undergo a wind-uplift test and can only begin construction after passing the test. Corrosion-resistant corrugated steel sheets are directly fixed to the roof purlins using 6.3*75 stainless steel self-tapping screws. Wind-proof pressure sheets and waterproof rubber pads are directly attached to the self-tapping screws and roof panels to increase the roof panels' wind-uplift resistance and ensure waterproof performance.

[0139] According to the installation sequence of the steel structure, the roof panels are planned to be laid symmetrically from west to east, south, and north along the platform canopy. The effective width of the roof panels for this project is 773mm. The panels have a large edge at each end, and the panels are laid with the large edge pressing down on the small edge. Considering the roof's wind-induced safety, a dedicated person will be responsible for fixing each roof panel after it is laid to ensure there is no risk of it falling.

[0140] During construction, all metal roof panels planned to be installed in the same skylight must be nailed and connected, and uninstalled roof panels shall not be stored on the awning.

[0141] Skylight construction deployment: 1) At the first skylight site, workers were assigned to lay the roof panels. Each 14-meter-long panel required eight workers to simultaneously lift and lay it. Once the panels were in place, four workers were assigned to perform nailing work. It was estimated that each skylight site could complete 300 square meters of roof panels within 300 minutes. 2) At the second skylight site, approximately 300 square meters of roof panels had already been completed. In addition to the regular paneling workers, four workers were assigned to complete the finishing work on the area of roof panels completed at the first skylight site. This process was repeated for subsequent skylight sites, forming a streamlined operation. 3) At the third skylight site, access ramps and fall arrest bars were installed.

[0142] 2. Construction of roof gutter system

[0143] The gutter of this project is made of 3.0mm stainless steel plate. A deformation joint is set in each span along the length of the gutter. Each section of the gutter is separated by a deformation joint baffle. A cover plate is added on the upper part to maintain the integrity of the gutter and realize the expansion and waterproof functions. A retractable connecting pipe is set between each expansion joint to ensure that if there is a span with untimely drainage, it can also flow to the adjacent ditch through the connecting pipe for smooth drainage.

[0144] Construction process flow: gutter ground installation → gutter plate hoisting with structure → gutter connection and expansion joint treatment → gutter cleaning → self-inspection and rectification → inspection.

[0145] Construction deployment: The gutter construction is divided into two stages: ground installation and gutter connection in the skylight point.

[0146] 1) In conjunction with the steel structure team, adopt the plan of hoisting the structure of each span as a whole, and install the gutter on the ground along with the structure, with each span of about 32 meters, and then hoist it into place along with the structure as a whole to improve the docking quality of the gutter and improve work efficiency; 2) After the two spans of the gutter are hoisted into place along with the structure, during the construction of the skylight point, the two spans of the gutter will be docked and the gutter expansion joints and connecting pipes will be installed.

[0147] 3. Roof maintenance bridleway construction

[0148] The bridleway handrails, crossbeams, and tread supports for this project are constructed from 40*4" hot-dip galvanized square tubes, while the side beams are constructed from 60*40*4" hot-dip galvanized square tubes laid throughout the entire length. The treads are finished with 30*3" galvanized steel grating. The entire bridleway system is connected to the roof panels via specialized aluminum alloy connecting bases.

[0149] Construction process flow: assembly of the horse track ground (6 meters) → installation of the horse track base → connection and fixation of each section of the horse track → installation of the horse track treads → self-inspection and rectification → inspection.

[0150] Construction points: Construction content within the skylight point: Fix the special aluminum alloy support to the roof panel by means of self-tapping screws, then connect the horizontal crossbar of the horseway to the special aluminum alloy support, lay the horseway grille, and finally weld the 6-meter handrail assembled on the ground to the horizontal crossbar.

[0151] The horseway was assembled into 6-meter handrails on the ground, and then hoisted to the roof for installation within the skylight point. It was calculated that the weight of each 6-meter handrail was about 0.224 tons. A 25-ton crane was used for hoisting. The module was hoisted to the roof for construction. The maximum operating radius of the crane was about 42 meters, and the maximum lifting capacity was 3.5 tons. The load met the safety requirements.

[0152] 4. Construction of roof fall protection system

[0153] Construction process flow: installation of special anti-fall support → installation of anti-fall circular pipe → self-inspection and rectification → inspection report.

[0154] Key points of construction: The roof anti-fall system of this project is distributed on one side of the horseway. The anti-fall pipe adopts Ф32 stainless steel round tube, which is fixed to the crossbar of the horseway through L63*4 angle steel corner code. The fixed spacing is 1546mm. The anti-fall system can protect the safety of maintenance personnel. It is required that only one person can be hung within each 1546mm range.

[0155] The roof panels are installed using two 25-ton cranes (one on each platform on the north and south sides) to lift the required materials to the top of the roof canopy structure. The length of the roof panels is 14 meters. In order to prevent the risk of deformation and falling of the roof panels during lifting, a shoulder pole cradle is used to assist in lifting. The cradle is assembled from two 6-meter 180*100 square tubes and 40*40 square tubes. The cradle weighs about 0.8 tons. The maximum operating radius of the crane is about 18 meters, the maximum lifting capacity is 3.5 tons, the lifting cradle is 0.8 tons, and the weight of a corrosion-resistant corrugated steel plate is 0.126 tons. The number of roof panels lifted at a single time shall not exceed 12 (including the weight of the shoulder pole, a total of 2.3 tons).

[0156] The crane's lifting capacity is 3.5 tons > 2.3 tons, the load factor is 65.7%, and the safety factor is 1.52.

[0157] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A lifting tool for installing a new canopy, characterized in that: The lifting equipment includes: The shoulder pole main beam comprises a plurality of relatively parallel beams; the shoulder pole main beam is made of H-shaped steel of Q355B; An auxiliary crossbeam, the auxiliary crossbeam being vertically connected to the shoulder pole main beam; the two ends of the auxiliary crossbeam being respectively connected to two adjacent shoulder pole main beams; the auxiliary crossbeam comprising a plurality of relatively parallel arranged crossbeams; There are multiple diagonal braces, and two of the multiple diagonal braces located between two adjacent auxiliary beams intersect; the diagonal braces are connected at the intersection of the auxiliary beams and the shoulder pole main beam; the diagonal braces and the auxiliary beams are made of H-shaped steel with a material of Q235B.

2. A lifting tool for installing a new canopy according to claim 1, characterized in that: The cross-sectional dimensions of the shoulder pole main beam are 400×400×13×21mm; At least two shoulder pole main beams are provided.

3. A lifting tool for installing a new canopy according to claim 1, characterized in that: The cross-sectional dimensions of the auxiliary crossbeam and / or the diagonal support rod are 200×200×8×12 mm.

4. A lifting tool for installing a new canopy according to claim 3, characterized in that: There are at least two auxiliary beams; The extension length of the auxiliary crossbeam along its own axis is smaller than the extension length of the shoulder pole main beam along its own axis.

5. The lifting tool for installing a new canopy according to claim 1, characterized in that: One side of the lifting device is provided with 8 upper lifting points; Among the eight upper suspension points, the four suspension points in the middle are used to connect the main suspension ropes; Among the eight upper suspension points, the four suspension points located on the outer sides are used for connecting the slip ropes.

6. A lifting tool for installing a new canopy according to claim 5, characterized in that: Among the upper hanging points, the upper hanging ears of the four hanging points located in the middle part adopt 300×240×25mm ear plates; Among the upper hanging points, the upper hanging ears of the four hanging points located in the middle part are provided with upper hanging holes with a diameter of 42 mm, and 20 mm stiffening ribs are welded on the flanks, and the material is Q355B.

7. The hoisting tool for installing a new canopy according to claim 5, characterized in that: The other side of the lifting device is provided with 6 lower lifting points; The six lower hanging points are used to connect the canopy unit modules to be installed.

8. The lifting tool for installing a new canopy according to claim 7, characterized in that: The lower hanging ears for connecting the six lower hanging points of the canopy unit module to be installed are made of 240×220×25mm ear plates; A lower hanging hole with a diameter of 70 mm is opened on the lower hanging ear of the lower hanging point, and the material is Q355B.

9. A process for installing a new canopy, using a hoisting tool for installing a new canopy according to any one of claims 1 to 8, characterized in that: The installation method comprises the steps of: S1. Preparation before installation; S2. Use lifting tools to lift and connect the canopy unit module to the corresponding position of the canopy frame of the dismantled old canopy; S3. Removal of auxiliary components; S4. Connect the adjacent canopy unit modules on the same side.

10. The installation process of a new canopy according to claim 9, characterized in that: The lifting device includes an upper lifting point and a lower lifting point arranged on different sides; the upper lifting points include a lifting point located in the middle and a lifting point located on the outer side; The lower lifting point of the lifting device is connected to the main truss steel wire rope of the canopy unit module with a shackle pocket using a D30 steel wire rope with an 8t shackle; The crawler crane hook uses a D48 sling with a D20 shackle to connect to the middle lifting point on the upper lifting point of the lifting equipment. The position is adjusted by pulling four D20 auxiliary adjustment ropes and 8T shackles to connect the outer lifting points of the upper lifting points of the lifting equipment, and cooperating with 5T fall chains.

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