CN108589533B - Application method of arch rib high-altitude folding type operation platform - Google Patents
Application method of arch rib high-altitude folding type operation platform Download PDFInfo
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- CN108589533B CN108589533B CN201810282660.1A CN201810282660A CN108589533B CN 108589533 B CN108589533 B CN 108589533B CN 201810282660 A CN201810282660 A CN 201810282660A CN 108589533 B CN108589533 B CN 108589533B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
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Abstract
The invention discloses a using method of an arch rib high-altitude folding type working platform, which comprises the following steps: the method comprises the steps of providing an arch rib aerial folding type operation platform, fixing the arch rib aerial folding type operation platform in a folded state on an arch rib, hanging an arch rib pocket fixed with the arch rib aerial folding type operation platform to a preset height, unfolding the arch rib aerial folding type operation platform at high altitude and disassembling the arch rib aerial folding type operation platform. The use method of the arch rib aerial folding type working platform has the advantages that redundant working cables are not occupied, and the collision probability with buckling cables is reduced.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of bridge construction, in particular to a using method of an arch rib aerial folding type working platform.
[ background of the invention ]
The steel pipe concrete arch bridge usually adopts a construction process of installing arch ribs by a bracket-free cable hoisting system and then injecting concrete in pipes, wherein dangerous high-altitude operations such as welding and coating of arch rib segment joints always restrict field construction, and construction enterprises always seek a safe, effective and convenient arch rib joint operation platform to ensure the safety of the welding and coating operations of the arch rib joints. According to the traditional operation method, a working platform is formed by welding reinforcing steel bars, profile steel and the like in a field, then the working platform is hung to the high altitude by a working cable and an arch rib, the working platform needs to be fixed by the working cable when positioned at the high altitude, and the safety coefficient is low. The operation platform needs to ensure sufficient operation space and leads to large volume, and the problem of collision with a buckle cable exists in the process of carrying out pocket hanging on the formed operation platform.
[ summary of the invention ]
In view of the above problems, there is a need for a method for using an arch rib aerial folding work platform, which has the advantages of not occupying redundant working cables and reducing the probability of collision with buckling cables.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a use method of an arch rib high-altitude folding type working platform comprises the following steps:
s1, providing an arch rib overhead folding type operation platform which comprises an aisle, two operation frames and a cross beam, wherein the operation frames are respectively arranged at two opposite ends of the aisle, each operation frame comprises a bottom plate and two movable fences, one side of the bottom plate is rotatably connected with the aisle, one side of each movable fence is rotatably connected with the aisle, and the rotating axes of the movable fences are perpendicular to the rotating axes of the bottom plates; the bottom plate and the two movable fences can rotate between an unfolded position and a folded position; when the bottom plate and the two movable fences are positioned at the unfolding positions, the two movable fences are respectively positioned at two opposite sides of the bottom plate, are perpendicular to the bottom plate and are detachably connected with the bottom plate, and one sides of the two movable fences, which are far away from the aisle, are detachably connected together through a connecting piece, so that the bottom plate and the two movable fences jointly enclose an operation space; when the bottom plate and the two movable fences are positioned at the folding positions, the two movable fences and the bottom plate are folded on the side surface of the aisle; the opposite ends of the cross beam are fixedly connected with the opposite ends of the aisle;
s2, rotating the bottom plate and the two movable fences to the folding position, and fixing the cross beam on an arch rib;
s3, hanging an arch rib pocket fixed with an arch rib high-altitude folding type operation platform to a preset height by using a working cable;
s4, rotating the two movable fences and the bottom plate to enable the two movable fences and the bottom plate to be in an unfolded state, and obtaining an operation space;
and S5, after the operation is finished, the arch rib overhead folding type operation platform is detached from the arch ribs, and the detached arch rib overhead folding type operation platform is hung on the ground in a bag mode.
Furthermore, the arch rib aerial folding type working platform comprises a plurality of connecting pieces which are sequentially arranged at intervals along the height direction of the movable fence; the movable fence is provided with jacks at one side opposite to the fixed fence, and two opposite ends of each connecting piece are respectively inserted into the jacks of the movable fence so as to detachably connect the two movable fences.
Furthermore, the arch rib comprises an arch rib steel pipe, an arch rib vertical pipe and a stabilizing pipe; the arch rib steel pipe comprises two upper chord pipes and two lower chord pipes, the two upper chord pipes are oppositely arranged and are connected through a connecting transverse pipe, the two lower chord pipes are oppositely arranged and are connected through the connecting transverse pipe, and the upper chord pipe and the lower chord pipe which are positioned on the same side are connected through the arch rib vertical pipe; in step S2, the two upper chords jointly fix an overhead folding work platform with arch rib, and the two lower chords jointly fix an overhead folding work platform with arch rib.
Furthermore, a plurality of arch rib fixing rods are arranged on one side of the cross beam facing the ground, and extend in the direction far away from the cross beam; every two arch rib fixing rods and the cross beam form an installation space for installing the arch rib steel pipes; the step S2 of fixing the cross member to the arch rib specifically includes the steps of: and placing the arch rib steel pipe in the installation space, enabling the arch rib fixing rod and the cross beam to be in contact with the arch rib steel pipe, and fixing the arch rib fixing rod and the cross beam with the arch rib steel pipe by welding.
Further, the passageway comprises two guard rails, and the guard rails are arranged on two opposite sides of the passageway; in step S3, the guard rail facing the arch rib during the hanging process keeps in contact with the arch rib vertical pipe and the plane on which the guard rail is located is parallel to the axis of the arch rib vertical pipe.
Further, in step S5, the removing step of the arch rib aerial folding work platform mounted on the top chord includes: after the aisle is removed from the arch rib overhead folding type operation platform, hanging the aisle pocket to the ground by using a working cable, removing the fixing of the cross beam and the arch rib steel pipe, and hanging the rest part pocket of the arch rib overhead folding type operation platform to the ground by using the working cable; the dismantling step of the arch rib aerial folding type operation platform installed on the lower chord tube comprises the following steps: and after the aisle is dismantled from the arch rib overhead folding type operation platform, hanging the aisle to the ground by using a working cable pocket, dismantling the fixation of the cross beam and the arch rib steel pipe, cutting off the cross beam to divide the arch rib overhead folding type operation platform into two parts, and respectively hanging the two parts of pocket to the ground by using the working cable.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. according to the using method of the arch rib high-altitude folding type operation platform, the cross beam is connected with the two working frames, a space for installing the arch rib can be formed between the cross beam and the aisle, so that the platform and the arch rib can be hung together and fixed with the arch rib at high altitude, and a working cable can be saved; the two movable fences are respectively and rotatably connected with the bottom plate, the bottom plate is rotatably connected with the fixed fence, and when the bottom plate and the two movable fences are positioned at folding positions, the two movable fences and the bottom plate are folded on the side surface of the passageway, so that the overall volume of the operation platform can be reduced, and the operation platform is prevented from being wound and collided with the buckling rope in the process of being hung together with the arch rib; after the operation platform is hung to the high altitude, two movable fences and the bottom plate are opened to form sufficient operation space on two sides of the arch rib so as to meet the operation requirement.
2. Two movable fences of the arch rib high-altitude folding type operation platform are connected through a connecting piece, and the safety of an operation piece is improved.
3. The arch rib steel pipe is fixed with the two arch rib fixing rods and is simultaneously fixed with the cross beam, so that the operation and arch rib steel pipe has three fixing surfaces, and the connection stability of the operation platform and the arch ribs is improved.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of an overhead folding work platform with arch ribs according to a preferred embodiment of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is an enlarged view of fig. 1 at C.
Fig. 5 is a cross-sectional view taken along line D-D of fig. 1.
Fig. 6 is a simplified left side view of the installation of the arch rib aerial collapsible working platform.
Fig. 7 is an installation easy front view of the arch rib aerial collapsible working platform.
Fig. 8 is a schematic view of a structure after welding two arch ribs.
Fig. 9 is another structural diagram of the work frame in fig. 1.
In the attached drawings, 100-arch rib overhead folding type operation platform, 1-crossing, 11-crossing plate, 12-fixed fence, 121-bearing flange, 13-protective guard, 14-upright post, 15-crossing opening, 2-operation frame, 21-bottom plate, 22-movable fence, 221-jack, 222-bearing plate, 23-connecting piece, 24-fixed inclined rod, 25-first rotating piece, 251-first fixing sleeve, 252-first rotating part, 253-first fixing part, 26-second rotating piece, 261-second fixing sleeve, 262-second rotating part, 263-second fixing part, 3-cross beam, 31-arch rib fixing rod, 4-step, 200-arch rib, 201-arch rib steel pipe, 20 a-upper chord pipe, 20 b-lower chord tube, 20 c-connecting horizontal tube, 202-arch rib vertical tube, 203-stabilizing tube and 204-joint ring plate.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 8, a preferred embodiment of the present invention provides an overhead folding work platform 100 for welding and painting joints of a rib 200. In this embodiment, the arch rib 200 includes an arch rib steel pipe 201, an arch rib riser pipe 202, and a stabilization pipe 203. The arch rib steel pipe 201 includes two upper chord pipes 20a and two lower chord pipes 20 b. The two upper chord tubes 20a are oppositely arranged and connected through a connecting transverse tube 20 c. The two lower chord tubes 20b are oppositely arranged and connected by a connecting transverse tube 20 c. An upper chord 20a and a lower chord 20b on the same side are connected by the spandrel riser 202. An upper chord tube 20a and a lower chord tube 20b on the same side are connected by a plurality of stabilizing tubes 203 to stabilize the structure of the arch rib 200.
The arch rib overhead folding work platform 100 comprises a walkway 1, two work frames 2 and a cross beam 3. The opposite ends of the aisle 1 are respectively provided with the working frames 2, and each working frame 2 comprises a bottom plate 21, two movable fences 22 and a fixed diagonal rod 24. One side of the bottom plate 21 is rotatably connected with the aisle 1, one side of each movable fence 22 is rotatably connected with the aisle 1, and the rotating axis of each movable fence 22 is perpendicular to the rotating axis of the bottom plate 21. The base plate 21 and the two movable fences 22 can rotate between an unfolded position and a folded position. The bottom plate 21 and two when the activity rail 22 is located the expansion position, two activity rails 22 are located respectively the relative both sides of bottom plate 21 and with the bottom plate 21 is perpendicular, and with bottom plate 21 detachably connects, specifically is: each movable fence 22 is provided with a receiving plate 222 bent towards one side of the other movable fence 22 for receiving the bottom plate 21. The two movable fences 22 are detachably connected together through a plurality of connectors 23 at the sides far away from the aisle 1, specifically: the connecting pieces 23 are guard rods, and the connecting pieces 23 are sequentially arranged at intervals along the height direction of the movable fence 22; the movable fence 22 is provided with a jack 221 on one side opposite to the aisle 1, and opposite ends of each connecting member 23 are respectively inserted into the jacks 221 of the two movable fences 22, so that the bottom plate 21 and the two movable fences 22 jointly enclose an operation space. Preferably, the workspace is a cube. One end of the fixed diagonal rod 24 is rotatably connected to one of the movable fences 22, and the other end of the fixed diagonal rod is detachably connected to the other movable fence 22 through a bolt (not shown), so that a stable tripod structure can be formed among one movable fence 22, the bottom plate 21 and the fixed diagonal rod 24, and the stability of the work platform 100 is improved.
When the bottom plate 21 and the two movable fences 22 are located at the folded positions, the two movable fences 22 and the bottom plate 21 are folded at the side of the aisle 1 facing away from the other working frame 2. Opposite ends of the cross member 3 are fixedly connected to opposite ends of the aisle 1, respectively, so as to form a space for installing the arch rib 200 between the cross member 3 and the aisle 1.
In the present embodiment, the aisle 1 includes an aisle plate 11, two sets of extension members, and two guard rails 13. Two sets of extending members are respectively located at two opposite ends of the walkway plate 11, and each set of extending member includes two fixed fences 12 and a pillar 14. Two fixed fences 12 are respectively installed on two opposite sides of the walkway plate 11, wherein one side of one fixed fence 12 farthest from the walkway plate 11 fixes the upright post 14. The two guard rails 13 are respectively arranged on two opposite sides of the aisle plate 11, so that the safety of the aisle 1 can be improved. The opposite ends of the cross beam 3 are fixed to the two pillars 14, respectively. With the stand 14 is connected be equipped with the step 4 on the activity rail 22, the step 4 is followed the length direction of stand 14 extends, can make things convenient for the operator to climb on platform 100, more does benefit to and carries out the operation.
In the present embodiment, the bottom plate 21 and the fixed fence 12 are rotatably connected by a first rotating member 25, specifically: the first rotating member 25 includes a first fixing sleeve 251, a first rotating portion 252 and a first fixing portion 253. The first fixing sleeve 251 is fixed on the fixed rail 12, and a through rotating space is provided in the first fixing sleeve 251. The first rotating portion 252 movably penetrates through the rotating space and can rotate in the rotating space, the free end of the first rotating portion 252 is connected with the first fixing portion 253, the first fixing portion 253 bends towards the bottom plate 21, and the first fixing portion 253 is fixed on the bottom plate 21, so that the bottom plate 21 can rotate under the driving of the first rotating portion 252 and the first fixing portion 253.
In the present embodiment, one of the movable fences 22 of each working frame 2 is rotatably connected to the corresponding upright post 14 by a second rotating member 26, specifically: the second rotating member 26 has the same structure as the first rotating member 25, and the second rotating member 26 includes a second fixing sleeve 261, a second rotating part 262 and a second fixing part 263. The fixed cover 261 of second is fixed in on the activity rail 22, second fixed part 263 is fixed in on the stand 14, the activity of second rotation portion 262 is worn to establish the fixed cover 261 of second and is dorsad the direction of bottom plate 21 is buckled, the free end connection of second rotation portion 262 second fixed part 263 to make the fixed cover 261 of second can the joint in second fixed part 263 and make second rotation portion 262 can be relative fixed rail 12 rotates. The other movable fence 22 is rotatably connected to a side of the fixed fence 12 opposite to the column 14 by a third rotating member (not shown), the third rotating member (not shown) has the same structure as the first rotating member 25, and the third rotating member includes a third fixing sleeve (not shown), a third rotating portion (not shown) and a third fixing portion (not shown). The third fixing sleeve is fixed on the movable fence 22, the third fixing part is fixed on the fixed fence 12, and the third rotating part movably penetrates through the third fixing sleeve and bends towards the direction back to the bottom plate 21.
In the present embodiment, the side of the fixed rail 12 rotatably connected to the bottom plate 21 is bent away from the fixed rail 12 to form a connecting flange 121 for receiving the bottom plate 21 in the unfolded state.
In this embodiment, a plurality of arch rib fixing rods 31 are provided on the side of the cross member 3 facing the ground, and the arch rib fixing rods 31 extend in a direction away from the cross member 3. Every two arch fixing rods 31 form an installation space for installing the arch steel pipe 201 together with the cross member 3, and the arch fixing rods 31 can contact with the arch steel pipe 201, so that the arch steel pipe 201 and the arch fixing rods 31 can be fixed when the arch steel pipe is installed.
In this embodiment, the method for determining the size of the arch rib aerial folding work platform 100 is as follows: (1) the length of the arch rib overhead folding work platform 100 (i.e. the vertical distance between the two bottom plates 21 and the side edges of the aisle 1) is L, the width of the arch rib steel pipe 201 is a, the front standing is considered during the welding work of field workers, the preset work width (i.e. the width of the bottom plate 21) is c, and then L is a +2 c. (2) The width of the arch rib overhead folding type operation platform 100 is W, after the joints of two arch rib steel pipes 201 are welded, a joint ring plate 204 is adopted to cover the joint parts of the two arch rib steel pipes 201, the width of the joint ring plate 204 is d, a site worker considers that the side stands during welding operation, and the working width e is preset, so that W is d +2 e; (3) the height of the arch rib overhead folding work platform 100 is H. After the work platform 100 is installed, the cross section of the arch rib steel pipe 201 along the direction of the upright post 14 is oval, the length of the axis of the vertical horizon in the oval is f, the overhead welding height (i.e. the vertical distance from the bottom plate 21 to the lowest end of the joint ring plate 204) at the bottom of the steel pipe is g, the vertical distance from the top end of the upright post 14 to the cross beam 3 is m, and the height is: h ═ f + g + m.
In this embodiment, the method for determining the size of the folding area of the arch rib aerial folding work platform 100 is as follows: the preset distance j between the work platform 100 and the narrowest point of the buckle cable (not shown), and considering that the preset hoisting distance k is set at the left and right sides of the work platform 100, the length L1 of the walkway plate 11 is j-2 × k, and the width of the bottom plate 21 is L2 ═ L1 ÷ 2.
The embodiment also provides a use method of the arch rib overhead folding type operation platform 100, which comprises the following steps:
s1, providing the arch rib overhead folding type operation platform 100.
S2, the bottom plate 21 and the two movable fences 22 are rotated to a folding position, and the method specifically comprises the following steps: the operating bottom plate 21 rotates towards the fixed fence 12, and the two movable fences 22 rotate towards the fixed fence 12 respectively, so that the movable fence 22 and the bottom plate 21 are folded at one side of the fixed fence 12, which is back to the other operating frame 2; fixing the cross beam 3 on the arch rib specifically comprises the following steps: the two upper chords 20a jointly fix an arch rib overhead folding type operation platform 100, each upper chord 20a is placed in an installation space formed by two arch rib fixing rods 31 and a cross beam 3, each upper chord 20a is in contact with the corresponding arch rib fixing rod 31 and the cross beam 3, and the upper chord 20a is fixed with the corresponding arch rib fixing rod 31 and the cross beam 3 by adopting a welding method; an arch rib overhead folding type operation platform 100 is fixed on two lower chord tubes 20b, each lower chord tube 20b is arranged in an installation space formed by two arch rib fixing rods 31 and a cross beam 3, each lower chord tube 20b is contacted with the corresponding arch rib fixing rod 31 and the cross beam 3, and the lower chord tubes 20b are fixed with the corresponding arch rib fixing rod 31 and the cross beam 3 by adopting a welding method.
And S3, hanging the arch rib 200 fixed with the arch rib overhead folding type operation platform 100 to a preset height by using a working cable, wherein preferably, the protective guard 13 facing the arch rib 200 is kept close to the arch rib vertical tube 202 in the hanging process, and the plane of the protective guard 13 is parallel to the axis of the arch rib vertical tube 202.
S4, rotating the two movable fences 22 and the bottom plate 21 to enable the two movable fences 22 and the bottom plate 21 to be in an unfolded state to obtain a working space, which specifically comprises the following steps: the two movable fences 22 are operated to rotate towards the direction away from the fixed fence 12, the bottom plate 21 is received on the receiving plate 222 and the receiving flange 121, and the two movable fences 22 and the bottom plate 21 are unfolded; the opposite ends of the connecting member 23 are inserted into the insertion holes 221, the fixed diagonal member 24 is rotated, and the fixed diagonal member 24 is bolted to the movable fence 22 by bolts, so that the working frame 2 is in an unfolded state.
S5, after the operation is finished, the arch rib overhead folding type operation platform 100 is detached from the arch rib, and the detached arch rib overhead folding type operation platform 100 is hung to the ground in a bag mode, wherein the method specifically comprises the following steps:
1. the dismantling step for the arch rib aerial folding work platform 100 installed on the upper chord tube 20a comprises the following steps: cutting off the walkway plates 11 and the guard rails 13 from the operation platform 100, hanging the walkway plates 11 and the guard rails 13 to the ground by using working cables, cutting off the connection between the cross beams 3 and the arch rib fixing rods 31 and each upper chord tube 20a, and hanging the rest parts of the operation platform 100 to the ground by using the working cables;
2. the dismantling step of the arch rib aerial folding work platform 100 installed on the lower chord tube 20b comprises the following steps: cutting off the walkway plates 11 and the guard rails 13 from the operation platform 100, hanging the walkway plates 11 and the guard rails 13 to the ground by using working cables, cutting off the connection between the cross beams 3 and the arch rib fixing rods 31 and each lower chord tube 20b, cutting off the cross beams 3 to divide the arch rib overhead folding type operation platform 100 into two parts, and hanging the two parts to the ground by using the working cables.
It is understood that the working space enclosed by the bottom plate 21 and the two movable fences 22 is not limited to the cube in the present embodiment, and in other embodiments, the working space may have other shapes.
It is to be understood that the fixing method of the cross member 3 and the rib fixing rod 31 to the rib 200 is not limited to the welding in the present embodiment, and in other embodiments, the fixing may be performed by other methods.
The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.
Claims (6)
1. A use method of an arch rib aerial folding type working platform is characterized by comprising the following steps:
s1, providing an arch rib overhead folding type working platform which comprises a passageway, two working frames and a cross beam, wherein the two opposite ends of the passageway are respectively provided with one working frame, each working frame comprises a bottom plate and two movable fences,
one side of the bottom plate is rotatably connected with the aisle, one side of each movable fence is rotatably connected with the aisle, and the rotating axis of each movable fence is perpendicular to that of the bottom plate; the bottom plate and the two movable fences can rotate between an unfolded position and a folded position; when the bottom plate and the two movable fences are positioned at the unfolding positions, the two movable fences are respectively positioned at two opposite sides of the bottom plate, are vertical to the bottom plate and are detachably connected with the bottom plate, one sides of the two movable fences far away from the passageway are detachably connected together through a connecting piece,
so that the bottom plate and the two movable fences jointly enclose a working space; when the bottom plate and the two movable fences are positioned at the folding positions, the two movable fences and the bottom plate are folded on the side surface of the aisle; the opposite ends of the cross beam are fixedly connected with the opposite ends of the aisle;
s2, rotating the bottom plate and the two movable fences to the folding position, and fixing the cross beam on an arch rib;
s3, hanging an arch rib pocket fixed with an arch rib high-altitude folding type operation platform to a preset height by using a working cable;
s4, rotating the two movable fences and the bottom plate to enable the two movable fences and the bottom plate to be in an unfolded state, and obtaining an operation space;
and S5, after the operation is finished, the arch rib overhead folding type operation platform is detached from the arch ribs, and the detached arch rib overhead folding type operation platform is hung on the ground in a bag mode.
2. The use method of the arch rib overhead folding work platform as claimed in claim 1, wherein: the arch rib overhead folding type working platform comprises a plurality of connecting pieces which are sequentially arranged at intervals along the height direction of the movable fence; and jacks are arranged on one sides of the movable fences opposite to the passage, and the opposite two ends of each connecting piece are respectively inserted into the jacks of the two movable fences so as to detachably connect the two movable fences.
3. The use method of the arch rib overhead folding work platform as claimed in claim 1, wherein the arch rib comprises an arch rib steel pipe, an arch rib vertical pipe and a stabilizing pipe; the arch rib steel pipe comprises two upper chord pipes and two lower chord pipes, the two upper chord pipes are oppositely arranged and are connected through a connecting transverse pipe, the two lower chord pipes are oppositely arranged and are connected through the connecting transverse pipe, and the upper chord pipe and the lower chord pipe which are positioned on the same side are connected through the arch rib vertical pipe; in step S2, the two upper chords jointly fix an overhead folding work platform with arch rib, and the two lower chords jointly fix an overhead folding work platform with arch rib.
4. The method for using the arch rib overhead folding work platform as claimed in claim 3, wherein the side of the cross beam facing the ground is provided with a plurality of arch rib fixing rods, and the arch rib fixing rods extend in a direction away from the cross beam; every two arch rib fixing rods and the cross beam form an installation space for installing the arch rib steel pipes; the step S2 of fixing the cross member to the arch rib specifically includes the steps of: and placing the arch rib steel pipe in the installation space, enabling the arch rib fixing rod and the cross beam to be in contact with the arch rib steel pipe, and fixing the arch rib fixing rod and the cross beam with the arch rib steel pipe by welding.
5. The method as claimed in claim 3, wherein the aisle includes two guard rails, and the guard rails are disposed on two opposite sides of the aisle; in step S3, the guard rail facing the arch rib during the hanging process keeps in contact with the arch rib vertical pipe and the plane on which the guard rail is located is parallel to the axis of the arch rib vertical pipe.
6. The method of using a rib aerial collapsible working platform as claimed in claim 3, wherein in step S5, the step of dismantling the rib aerial collapsible working platform mounted on the tailpiece includes: after the aisle is removed from the arch rib overhead folding type operation platform, hanging the aisle pocket to the ground by using a working cable, removing the fixing of the cross beam and the arch rib steel pipe, and hanging the rest part pocket of the arch rib overhead folding type operation platform to the ground by using the working cable; the dismantling step of the arch rib aerial folding type operation platform installed on the lower chord tube comprises the following steps: and after the aisle is dismantled from the arch rib overhead folding type operation platform, hanging the aisle to the ground by using a working cable pocket, dismantling the fixation of the cross beam and the arch rib steel pipe, cutting off the cross beam to divide the arch rib overhead folding type operation platform into two parts, and respectively hanging the two parts of pocket to the ground by using the working cable.
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| CN201810282660.1A CN108589533B (en) | 2018-04-02 | 2018-04-02 | Application method of arch rib high-altitude folding type operation platform |
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| CN201810282660.1A CN108589533B (en) | 2018-04-02 | 2018-04-02 | Application method of arch rib high-altitude folding type operation platform |
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| CN108589533B true CN108589533B (en) | 2019-12-31 |
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| CN109853352A (en) * | 2019-01-30 | 2019-06-07 | 中铁大桥局第七工程有限公司 | Rib-lifting section operation platform and its setting method |
| CN113774805B (en) * | 2021-09-27 | 2022-12-16 | 广西路桥工程集团有限公司 | Method for mounting inclined suspender of basket arch bridge |
| CN114657881B (en) * | 2022-03-24 | 2024-02-27 | 中铁大桥局第七工程有限公司 | Bridge assembly platform structure |
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| CN203096620U (en) * | 2013-02-28 | 2013-07-31 | 中铁十五局集团有限公司 | Steel pipe arch rib operation platform |
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