CN113981828B - Temporary tie rod crossing mechanism - Google Patents
Temporary tie rod crossing mechanism Download PDFInfo
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- CN113981828B CN113981828B CN202111323832.3A CN202111323832A CN113981828B CN 113981828 B CN113981828 B CN 113981828B CN 202111323832 A CN202111323832 A CN 202111323832A CN 113981828 B CN113981828 B CN 113981828B
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- scratch
- temporary tie
- guide rail
- temporary
- sliding
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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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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a temporary tie rod crossing mechanism which comprises a plurality of pocket hanging seats and a plurality of transfer pieces, wherein the plurality of pocket hanging seats are arranged at intervals, each transfer piece comprises a guide rail and a sliding piece, the guide rails are connected with one sides of the plurality of pocket hanging seats facing a river surface, the sliding pieces are slidingly arranged on the guide rails, and the sliding pieces are provided with scratch-resistant shafts which can reduce the probability of scratch of the temporary tie rods in the process of transversely framing the river surface.
Description
[ field of technology ]
The invention relates to the technical field of bridge construction, in particular to a temporary tie rod crossing mechanism.
[ background Art ]
The steel pipe concrete tied arch bridge has the advantages of attractive appearance, better economy, shorter construction period and the like, and has a larger market in the middle span bridge. In order to prevent horizontal thrust forces from being generated by the abutment at the ends of the tied-arch bridge when constructing the tied-arch bridge, a temporary tie rod needs to be installed between the abutments of the arch to form a thrust-free arch. The temporary tie rod is installed to cross the river surface, the temporary tie rod is wound in one river bank in the prior art, a winch is placed on the other river bank, one end of the temporary tie rod is connected through a traction rope by the winch, the winch is started, the temporary tie rod is pulled out of the river bank under the traction of the traction rope, the pulled temporary tie rod gradually crosses the river surface under the assistance of the bearing and moving of the construction ship, and the opposite ends of the temporary tie rod are respectively fixed in pre-buried tunnels on the arch seats after the temporary tie rod crosses the river surface. Along with the development of the temporary tied arch bridge in the large-span and low-energy consumption direction, the temporary tie bars are made of permanent tie bar materials, and in the process of installing the temporary tie bars by adopting a traction river-passing installation method, the surface layers of the temporary tie bars can scratch the apertures of a construction ship, an arch seat, the ground and a pre-buried duct, so that the surface layers of the temporary tie bars are damaged, and the service lives of the tie bar arch bridge can be directly shortened due to the damage of the surface layers.
In addition, the temporary tie bar is installed and stretched to have large deflection, and is easy to collide with the grid beam and the like, so that potential safety hazards of construction exist.
[ invention ]
The invention aims to solve at least one of the technical problems, and provides a temporary tie rod crossing mechanism which can reduce the probability of scratch of temporary tie rods in the process of crossing a river surface.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a temporary tie rod straddling mechanism, includes a plurality of pocket hanging seat and shifts the piece, a plurality of pocket hanging seat interval sets up, it includes guide rail and slider to shift the piece, the guide rail with a plurality of pocket hanging seat is connected towards one side of river face, slider locates slidingly on the guide rail, the slider is equipped with prevents scraping the axle.
Further, the sliding piece comprises a sliding block and a mounting frame, the sliding block is slidably arranged on the guide rail, the mounting frame is connected with the sliding block, the mounting frame is provided with a mounting groove in a penetrating mode, and the scraping-preventing shaft is arranged in the mounting groove.
Further, the pocket hanging seat comprises two channel steel plates and two lifting lug plates, the two channel steel plates are oppositely arranged, and the two lifting lug plates are arranged at two opposite ends of the channel steel plates and are welded with the two channel steel plates; and the guide rail is connected with the two channel steel plates.
Further, the scraping-proof collar is concavely provided with a limit groove around the periphery.
Further, a reinforcing lifting lug plate is arranged at the position, corresponding to one guide rail, of the pocket lifting seat.
Further, the transfer piece further comprises a scratch-resistant cover, and the scratch-resistant cover is arranged outside the mounting frame and connected with the guide rail.
Further, the two opposite ends of the scratch-proof cover are provided with buffer bending strips, one ends of the buffer bending strips are connected with the end parts of the scratch-proof cover, and the buffer bending strips extend towards the direction away from the scratch-proof cover and bend towards the scratch-proof cover.
Further, the scraping-proof shaft is made of polyamide.
By adopting the technical scheme, the invention has the following beneficial effects:
1. the temporary tie rod crossing mechanism is used for assisting the temporary tie rods to pull the river surface of the transverse frame, when the temporary tie rods are used, the temporary tie rods are connected to the scratch-resistant shafts, when the temporary tie rods are stressed to pull along the width direction of the river surface, the scratch-resistant shafts drive the whole sliding piece to slide along the length direction of the guide rail under the action of friction force between the temporary tie rods and the scratch-resistant shafts, so that the temporary tie rods cross the river surface, and in the process of crossing the river surface, the temporary tie rods do not contact other hard parts, and the probability of scratch of the temporary tie rods can be reduced.
2. The scratch-resistant cover is arranged outside the mounting frame, and is positioned in the scratch-resistant cover when the temporary tie bars drive the scratch-resistant shafts to slide along the guide rails, so that the scratch-resistant cover can avoid collision between the lattice girders and the temporary tie bars during mounting.
[ description of the drawings ]
FIG. 1 is a schematic view of a temporary tie-bar crossing mechanism in accordance with a preferred embodiment of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
FIG. 3 is a schematic illustration of a method of temporary tie pulling straddling in accordance with a preferred embodiment of the present invention.
Fig. 4 is a cross-sectional view taken along line B-B in fig. 3.
Fig. 5 is an enlarged view of fig. 4 at C.
In the drawings, a 100-temporary tie rod crossing mechanism, a 1-pocket hanging seat, a 11-groove steel plate, a 12-hanging lug plate, a 2-transferring piece, a 21-guiding rail, a 22-sliding piece, a 220-limiting groove, a 221-scraping prevention shaft, a 222-sliding block, a 223-mounting frame, a 224-mounting groove, a 23-scraping prevention cover, a 24-buffering bent strip, a 3-reinforcing hanging lug plate, a 4-rope releasing frame, a 6-winch, a 61-traction rope, a 101-pocket hanging rope, a 200-temporary tie rod, a 300-arch rib, a 400-grid beam, a 500-85 national elevation standard, a 600-river and a 700-arch seat.
[ detailed description ] of the invention
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein 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. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 5, a temporary tie-bar crossing mechanism 100 according to a preferred embodiment of the present invention includes a plurality of hanging seats 1 and a plurality of transferring members 2, wherein the hanging seats 1 are spaced apart, the transferring members 2 are spaced apart along the length direction of the hanging seats 1, the transferring members 2 include guide rails 21 and sliding members 22, and the guide rails 21 are connected to one side of the hanging seats 1 facing the river surface. The number of the sliding pieces 22 is a plurality, the sliding pieces 22 are slidably arranged on the corresponding guide rails 21, the sliding pieces 22 are provided with the scraping preventing shafts 221, and the scraping preventing shafts 221 are made of polyamide.
The temporary tie rod crossing mechanism is used for assisting the temporary tie rods 200 to pull the cross-framed river surface, when the temporary tie rods 200 are used, the temporary tie rods 200 are received on the scratch-resistant shafts 221, when the temporary tie rods 200 are stressed to pull along the width direction of the river surface 600, the scratch-resistant shafts 221 drive the whole sliding members 22 to slide along the length direction of the guide rails 21 under the friction force between the temporary tie rods 200 and the scratch-resistant shafts 221, so that the temporary tie rods 200 cross the river surface 600, and in the process of crossing the river surface 600, the temporary tie rods 200 do not contact other hard components, and the probability of scratching the temporary tie rods 200 can be reduced.
In the present embodiment, the slider 22 includes a slider 222 and a mounting frame 223. The sliding block 222 is slidably disposed on the guide rail 21, specifically, the guide rail 21 is provided with a chute penetrating through two ends along the length direction, and the sliding block 222 is slidably disposed in the chute and is capable of sliding out of the guide rail 21 from two opposite ends of the chute. The installation frame 223 is connected with the sliding block 222, the installation frame 223 is provided with an installation groove 224 in a penetrating manner, the scraping-preventing shaft 221 is arranged in the installation groove 224, specifically, the installation frame 223 comprises two vertical plates and two transverse plates, the vertical plates and the transverse plates are made of steel plates, the two vertical plates are oppositely arranged, the two transverse plates are oppositely arranged at the two opposite ends of the vertical plates, and the two opposite ends of each transverse plate are respectively welded with the two vertical plates so as to form the installation groove 224; the scraping prevention shaft 221 is positioned in the mounting groove 224, and two vertical plates are fixedly connected to the opposite ends of the scraping prevention shaft 221; one of the cross plates is welded to the slider 222.
In the present embodiment, the hanger 1 includes two groove steel plates 11 and two tab plates 12. The two channel steel plates 11 are oppositely arranged, and the two lifting lug plates 12 are arranged at the two opposite ends of the channel steel plates 11 and are welded with the side surfaces of the two channel steel plates 11, which are opposite to the transfer piece 2, so as to be used for lifting the temporary tie rod straddling mechanism 100. The guide rail 21 is connected with two channel steel plates 11, in this embodiment, a reinforced lifting lug plate 3 is arranged at the position of the pocket hanging seat 1 corresponding to one guide rail 21, the reinforced lifting lug plate 3 is welded with two channel steel plates 11, the guide rail 21 is welded with the bottom of the reinforced lifting lug plate 3, in the process of pocket hanging of the temporary tie rod crossing mechanism 100, the pocket hanging rope is used for pocket hanging at the reinforced lifting lug plate 3, and the traction force of the temporary tie rod crossing mechanism 100 in the process of crossing the river surface by the temporary tie rod 200 is enhanced.
In the present embodiment, the structure of the shackle plate 12 and the reinforcing shackle plate 3 is the same as the structure of the shackle disclosed in "a temporary tie bar straddling installation method" of the chinese patent publication No. CN108589539B, the connection portion of the shackle plate 12 and the reinforcing shackle plate 3 is welded to both the channel steel plates 11, and the guide rail 21 is welded to the fixing portion of the reinforcing shackle plate 3 and the bottoms of both the channel steel plates 11.
In the present embodiment, the scratch-proof shaft 221 is recessed with a limiting groove 220 around the periphery, and when the temporary tie bar 200 is received on the scratch-proof shaft 221, the temporary tie bar 200 is limited in the limiting groove 220 to avoid the temporary tie bar 200 from scratching two risers.
In the present embodiment, the transfer member 2 further includes a scratch-proof cover 23, and the scratch-proof cover 23 is covered outside the mounting frame 223 and is connected to the guide rail 21, specifically, the scratch-proof cover 23 has a bar-like cylindrical shape. The scratch-proof cover 23 covers the outside of the mounting frame 223, the scratch-proof cover 23 is made of wire mesh, the scratch-proof shafts 221 are all located in the scratch-proof cover 23 when the temporary tie bars 200 drive the scratch-proof shafts 221 to slide along the guide rails 21, and the scratch-proof cover 23 can avoid collision between the lattice girders and the temporary tie bars 200 during mounting.
In this embodiment, buffer bending strips 24 are disposed at opposite ends of the scratch-resistant cover 23, the buffer bending strips 24 are made of polyamide, one end of each buffer bending strip 24 is connected with an end of the scratch-resistant cover 23, and the buffer bending strips 24 extend in a direction away from the scratch-resistant cover 23 and are bent towards the scratch-resistant cover 23 to form a curved shape. When the temporary tie bar 200 moves to the end of the guide rail 21 and passes out of the scratch-resistant cover 23, the buffer bend 24 is bent under force when the temporary tie bar 200 collides with the buffer bend 24 due to the curved arc shape of the buffer bend 24, so as to play a role in buffering, thereby avoiding the scratch of the temporary tie bar 200 and the scratch-resistant cover 23.
In this embodiment, a method for pulling and crossing temporary tie bars is provided, which is used for pulling and installing temporary tie bars 200 across a river surface, and the method is completed based on a conventional hanging system in the bridge construction process in the prior art, and the hanging system may comprise a plurality of hanging ropes 101, and specifically comprises the following steps:
the mechanism provides: the temporary tie bar crossing mechanism 100, the steering scraping prevention member, the orifice scraping prevention member, the rope releasing frame 4 and the winch 6 are provided, wherein the structures and arrangement of the steering scraping prevention member, the orifice scraping prevention member, the rope releasing frame 4 and the winch 6 are the same as those disclosed in the chinese patent of invention with publication No. CN108589539B, namely, a temporary tie bar crossing installation method, and the detailed description thereof is omitted herein.
Setting a pre-buried duct:
when arch seats 700 on two sides are built, a first pre-buried duct is penetrated through one arch seat 700, and a first inlet opening and a first outlet opening are respectively formed at two opposite ends of the first pre-buried duct; a second pre-buried duct is formed through the other abutment 700, and a second inlet opening and a second outlet opening are respectively formed at two opposite ends of the second pre-buried duct.
Calculating the design elevation: the method of calculating the design elevation of the temporary tie-bar crossing mechanism 100 is: hh=hl+h+l S1 +l S2 Wherein Hh is the design elevation, HL is the grid beam 400 installation elevation of the arch bridge, and the distance is: the temporary tie straddling mechanism 100 has a vertical center axis 1a at an intersection with the upper surface of the lattice beam 400, the intersection being a vertical distance from the 85 country elevation reference 500; h is the distance from the side of the lattice beam 400 facing away from the ground to the side of the trough steel plate 11 facing away from the ground in the sling seat 1, l S1 For the length of the sling 101 in the relaxed state l S2 Temporary tie bar crossing mechanism for pocket lifting rope 101 due to pocket lifting100, and the calculation method is as follows: the pocket lifting rope 101 is a steel wire rope, and the dead weight of the steel wire rope is G S The total weight of the two channel steel plates 11 is G H Temporary tie bar 200 weighs G at temporary tie bar traverse 100 X The vertical component force after the temporary tie bar 200 is stretched is F X The relevant parameters of the steel wire rope are as follows: the length of the steel wire rope is L, and the elastic modulus is E K The cross-sectional area of the steel wire is A S Length of wire rope l S2 ＝(G S +G H +G X +F X )×L÷(E K ×A S )。
Taking scratch-proof measures: the temporary tie rod crossing mechanism 100 is suspended to a designed elevation below the arch rib 300 through the suspending and suspending rope 101, specifically, a plurality of suspending and suspending seats 1, guide rails 21, scratch-resistant covers 23 and reinforcing lifting lug plates 3 are placed on a transfer ship, wherein the guide rails 21 and the scratch-resistant covers 23 are split into a plurality of sections to be placed;
pile numbers are coded on a plurality of pocket hanging seats 1, the pile numbers and the designed elevation of the corresponding temporary tie rod crossing mechanism 100 are marked on the arch seat 700 to serve as elevation level points, and points, where the side edges of the mounting parts of the lifting lug plates 12 are contacted with the top surfaces of the trough steel plates 11, serve as designed elevation marks;
the multi-section guide rail 21 and the multi-section scratch-resistant cover 23 are welded with the pocket hanging seat 1 corresponding to the pile number, and the buffer bent strips 24 are welded at the opposite ends of the scratch-resistant cover 23 by iron wires;
one end of the pocket lifting rope 101 is fixedly connected with the mounting part of the lifting lug plate 12, the other end of the pocket lifting rope is fixed with the working rope, the pocket lifting seat 1 is sequentially lifted to a designed elevation below the arch rib 300 at intervals along the span direction of the bridge arch by the working rope, and the corresponding pocket lifting seat 1 is fixedly connected with the arch rib 300 by the pocket lifting rope 101;
the constructor welds the guide rail 21 and the scraping cover 23 end to end through high altitude operation.
An orifice scratch preventing member is arranged at an orifice of an embedded duct for installing the temporary tie bar 200, a steering scratch preventing member is arranged at a turning part of the temporary tie bar 200, and the orifice scratch preventing member, the steering scratch preventing member, the first embedded duct, the first inlet orifice, the first outlet orifice, the second embedded duct, the second inlet orifice and the second outlet orifice are arranged in the same way as disclosed in the Chinese patent of the invention with publication number CN108589539B, namely, a temporary tie bar crossing installation method, and are not repeated herein.
Height calibration:
1. calibrating elevation leveling points on the abutment 700;
2. the specific practice of utilizing the level gauge to position the design elevation of each pocket hanging seat 1 is as follows: adjusting the cross hair of the level to the designed elevation by taking the elevation level point as a reference point;
3. the working rope is used for winding and unwinding the pocket lifting rope 101 to adjust the height of the pocket lifting seat 1, so that the designed elevation mark reaches the cross wire of the level gauge to ensure that a plurality of pocket lifting seats 1 are all positioned at the designed elevation.
And (3) large-span installation:
one end of the temporary tie bar 200 is fixed with a winch 6, and under the traction of the winch 6, the temporary tie bar 200 is contacted with the scratch-proof shaft 221 and is supported on the scratch-proof shaft 221, and the temporary tie bar 200 drives the scratch-proof shaft 221 to slide along the guide rail 21 so as to cross the river surface; in particular, the method comprises the steps of,
the temporary tie bar 200 is wound on the rope placing frame 4 and placed on the arch seat 700 provided with the first pre-buried duct, a plurality of sliding pieces 22 are placed on the arch seat 700 provided with the first pre-buried duct, the winch 6 is placed on the arch seat 700 provided with the second pre-buried duct, the winch 6 is provided with a traction rope 61, one end of the traction rope 61 penetrates through the second pre-buried duct from the second outlet hole, penetrates through the scratch-resistant cover 23 after penetrating out from the second inlet hole, and is fixed with one end of the temporary tie bar 200 penetrating through the first pre-buried duct through a pull buckle;
when the traction rope 61 is arranged, the sliding piece 22 reserved on the arch support 700 is strung onto the traction rope 61 in advance, and specifically, the traction rope 61 passes through between the sliding block 222 and the scratch-resistant shaft 221;
the end of the temporary tie rod 200 and the traction rope 61 pass through the steering scraping prevention piece and then enter the first pre-buried duct through the orifice scraping prevention piece of the first inlet orifice, and pass through the first pre-buried duct through the first outlet orifice; the other end of the traction rope 61 is connected with a winch 6;
starting the winch 6, pulling the temporary tie bar 200 wound on the rope releasing frame 4 out of the rope releasing frame 4 under the traction of the traction rope 61, suspending the winch 6 when the temporary tie bar 200 is pulled to an opening at one end of the scratch-resistant cover 23, sleeving the installation frame 223 on the temporary tie bar 200 by a constructor and limiting the temporary tie bar 200 in the limiting groove 220 of the scratch-resistant shaft 221, at the moment, hanging the sliding piece 22 and the temporary tie bar 200, then loading the sliding block 222 on the sliding groove of the guide rail 21, starting the winch 6 again, sliding the sliding block 222 along the guide rail 21 by friction force under the traction of the winch 6, and simultaneously, enabling the temporary tie bar 200 to cross the river surface under the connection of the scratch-resistant shaft 221; it will be appreciated that in order to provide better support for temporary tie bar 200, winch 6 needs to be suspended after temporary tie bar 200 is pulled out a certain length, and another slider 22 is hooked with temporary tie bar 200 and installed into the runner of guide rail 21;
after temporary tie bar 200 is pulled across the river surface, the constructor gathers glides 22 sliding off guide rail 21 and moves temporary tie bar 200 to the second pre-buried tunnel and wears corresponding abutment 700 from the second exit opening.
Fixing: the concrete method of fixing the opposite ends of the temporary tie 200 to the abutments 700 on both sides of the river bank is the same as that disclosed in the chinese patent of invention, CN108589539B, a temporary tie-crossing installation method, and will not be described here.
As can be seen, the method for pulling and crossing temporary tie bars is implemented based on the temporary tie bar crossing mechanism 100, and the guide rail 21 is connected to the sides of the plurality of hanging seats 1 facing the river surface, so that the calculation mode of the design elevation does not relate to the height of the temporary tie bars 200, and the calculation amount of the design elevation is reduced.
It will be appreciated that, to prevent the swing of the suspension seat 1, the suspension seat 1 may be fixed at opposite ends thereof by anti-swing ropes, and the arrangement manner is the same as the method disclosed in the chinese patent for patent publication CN108589539B, namely, a temporary tie-bar crossing installation method, and will not be described herein.
The foregoing description is directed to the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the invention, and all equivalent changes or modifications made under the technical spirit of the present invention should be construed to fall within the scope of the present invention.
Claims (7)
1. A temporary tie-bar straddling mechanism, characterized by: comprises a plurality of pocket hanging seats (1) and a transfer piece (2), wherein the pocket hanging seats (1) are arranged at intervals, the transfer piece (2) comprises a guide rail (21) and a sliding piece (22), the guide rail (21) is connected with one side of the pocket hanging seats (1) facing the river surface, the guide rail (21) is provided with sliding grooves penetrating through two ends along the length direction, the sliding piece (22) is slidingly arranged on the guide rail (21),
the sliding piece (22) comprises a scraping-proof shaft (221), a sliding block (222) and a mounting frame (223), wherein the sliding block (222) is slidably arranged in the sliding groove, the mounting frame (223) is connected with the sliding block (222), the mounting frame (223) is provided with a mounting groove (224) in a penetrating mode, and the scraping-proof shaft (221) is arranged in the mounting groove (224);
the temporary tie rod (200) is received on the scratch-proof shaft (221), and when the temporary tie rod (200) is stressed to be pulled along the width direction of the river surface (600), the scratch-proof shaft (221) drives the whole sliding piece (22) to slide along the length direction of the guide rail (21) under the action of friction force between the temporary tie rod (200) and the scratch-proof shaft (221).
2. A temporary tie straddling mechanism as claimed in claim 1 wherein: the pocket hanging seat (1) comprises two channel steel plates (11) and two lifting lug plates (12), the two channel steel plates (11) are oppositely arranged, and the two lifting lug plates (12) are arranged at two opposite ends of the channel steel plates (11) and are welded with the two channel steel plates (11); the guide rail (21) is connected with the two channel steel plates (11).
3. A temporary tie straddling mechanism as claimed in claim 2 wherein: the scraping-proof shaft (221) is concavely provided with a limit groove (220) around the periphery.
4. A temporary tie straddling mechanism according to claim 3 wherein: the pocket hanging seat (1) is provided with a reinforcing lifting lug plate (3) corresponding to the guide rail (21).
5. A temporary tie-bar straddling mechanism according to any one of claims 1 to 4 wherein: the transfer piece (2) further comprises a scratch-resistant cover (23), and the scratch-resistant cover (23) is covered outside the mounting frame (223) and is connected with the guide rail (21).
6. A temporary tie straddling mechanism according to claim 5 wherein: the anti-scratch cover (23) is characterized in that buffer bent strips (24) are arranged at two opposite ends of the anti-scratch cover (23), one ends of the buffer bent strips (24) are connected with the end portions of the anti-scratch cover (23), and the buffer bent strips (24) extend towards the direction away from the anti-scratch cover (23) and bend towards the anti-scratch cover (23).
7. A temporary tie straddling mechanism as recited in claim 6 wherein: the scraping-proof shaft (221) is made of polyamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111323832.3A CN113981828B (en) | 2021-11-10 | 2021-11-10 | Temporary tie rod crossing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111323832.3A CN113981828B (en) | 2021-11-10 | 2021-11-10 | Temporary tie rod crossing mechanism |
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| CN113981828A CN113981828A (en) | 2022-01-28 |
| CN113981828B true CN113981828B (en) | 2023-09-22 |
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| CN202111323832.3A Active CN113981828B (en) | 2021-11-10 | 2021-11-10 | Temporary tie rod crossing mechanism |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275385A (en) * | 2008-05-15 | 2008-10-01 | 天津市市政工程设计研究院 | Non-push tied arch bridge |
| CN102261039A (en) * | 2011-04-25 | 2011-11-30 | 长沙理工大学 | Integral thrusting construction method of network tied arch bridge |
| US9103081B1 (en) * | 2013-08-23 | 2015-08-11 | Platform Easy, L.L.C. | Below main cable work platform support |
| CN106087712A (en) * | 2016-08-11 | 2016-11-09 | 上海市政工程设计研究总院（集团）有限公司 | It is applicable to the rolling support system of the jump stay of Long-Span Tied Arch Bridge |
| CN108221694A (en) * | 2018-01-19 | 2018-06-29 | 中铁大桥局集团有限公司 | The method for installing long-span arch bridge tie-rod |
| CN208235341U (en) * | 2018-05-03 | 2018-12-14 | 广西路桥工程集团有限公司 | A kind of scratch resistant system of interim tie-rod installation |
| CN208279995U (en) * | 2018-05-28 | 2018-12-25 | 中交二航局第四工程有限公司 | Interim tie-rod device for the locking of bowstring arch bridge arch rib |
| CN109610332A (en) * | 2018-12-18 | 2019-04-12 | 中国五冶集团有限公司 | The method and its auxiliary device of a kind of installation of Steel Pipe Concrete Tied-arch Bridge and application |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388589B2 (en) * | 2013-05-21 | 2016-07-12 | Safway Services, Llc | Work platform system including suspended paneled portion and method of implementing same |
| WO2022099548A1 (en) * | 2020-11-12 | 2022-05-19 | China Railway No.3 Engineering Group Co.Ltd | Method for installing steel tube arches |
-
2021
- 2021-11-10 CN CN202111323832.3A patent/CN113981828B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275385A (en) * | 2008-05-15 | 2008-10-01 | 天津市市政工程设计研究院 | Non-push tied arch bridge |
| CN102261039A (en) * | 2011-04-25 | 2011-11-30 | 长沙理工大学 | Integral thrusting construction method of network tied arch bridge |
| US9103081B1 (en) * | 2013-08-23 | 2015-08-11 | Platform Easy, L.L.C. | Below main cable work platform support |
| CN106087712A (en) * | 2016-08-11 | 2016-11-09 | 上海市政工程设计研究总院（集团）有限公司 | It is applicable to the rolling support system of the jump stay of Long-Span Tied Arch Bridge |
| CN108221694A (en) * | 2018-01-19 | 2018-06-29 | 中铁大桥局集团有限公司 | The method for installing long-span arch bridge tie-rod |
| CN208235341U (en) * | 2018-05-03 | 2018-12-14 | 广西路桥工程集团有限公司 | A kind of scratch resistant system of interim tie-rod installation |
| CN208279995U (en) * | 2018-05-28 | 2018-12-25 | 中交二航局第四工程有限公司 | Interim tie-rod device for the locking of bowstring arch bridge arch rib |
| CN109610332A (en) * | 2018-12-18 | 2019-04-12 | 中国五冶集团有限公司 | The method and its auxiliary device of a kind of installation of Steel Pipe Concrete Tied-arch Bridge and application |
Non-Patent Citations (1)
| Title |
|---|
| 六律邕江特大桥临时系杆安装施工技术探讨;赵艳纳;何俊辉;谢雨珊;;西部交通科技(12);第119-122页 * |
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| CN113981828A (en) | 2022-01-28 |
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