CN107841955A - A kind of steel pipe arch bridge knotted rope hookup and connecting method - Google Patents
A kind of steel pipe arch bridge knotted rope hookup and connecting method Download PDFInfo
- Publication number
- CN107841955A CN107841955A CN201711425277.9A CN201711425277A CN107841955A CN 107841955 A CN107841955 A CN 107841955A CN 201711425277 A CN201711425277 A CN 201711425277A CN 107841955 A CN107841955 A CN 107841955A
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- Prior art keywords
- knotted rope
- steel pipe
- hinged
- otic placode
- gusset
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 36
- 239000010959 steel Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010276 construction Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 7
- 230000008521 reorganization Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
Classifications
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to technical field of bridge construction, more particularly to a kind of steel pipe arch bridge knotted rope hookup and connecting method, the steel pipe arch bridge knotted rope hookup of the present invention includes being used for the knotted rope connector connected with knotted rope, lifting components are connected with tubular arch, the lifting components are hinged by rotational pin and knotted rope connector, knotted rope connector is hinged on tubular arch by the hookup, during so that angle change occurring for knotted rope, knotted rope connector adapts to knotted rope angle change and concomitant rotation, ensure knotted rope connector uniform force, all the time it is in more free state, and then ensure the normal mounting and quality safety of steel pipe arch bridge.
Description
Technical field
The present invention relates to technical field of bridge construction, particularly a kind of steel pipe arch bridge knotted rope hookup and connecting method.
Background technology
Steel pipe arch bridge generally use cable crane or on-arch crane carry out main arch installation in a manner of free cantilever erection, while
Button anchor cable system need to be used to be coupled with main arch.When being constructed using cantilever approach, knotted rope angle is fixed, stress size
It is relatively clearer and more definite with direction.However as the application of the modern concrete filled steel tube technology characterized by pump concrete, button
Rope, which is removed, will wait tubular arch external wrapping concrete web to be carried out after the completion of pouring, because tubular arch external wrapping concrete load is big,
Tubular arch is linear with the change of construction stage, and tubular arch is linear to change therewith, and now the angle of knotted rope also changes therewith.
Due to tubular arch external wrapping concrete thinner thickness, there was only general 600mm, knotted rope connector size in thinnest part
It is limited, it is impossible to the size of unrestricted increase knotted rope connector, and knotted rope stress is larger, knotted rope connector needs to meet structure stress
It is required that therefore knotted rope connector set it is more difficult, meanwhile, how to ensure that knotted rope is reliably connected with tubular arch, and connect knotted rope
Connect device adapt to knotted rope angle change and concomitant rotation, turn into the problem of needing emphasis to consider in tubular arch installation process.
The content of the invention
It is an object of the invention to：For using cable crane or on-arch crane to enter in a manner of free cantilever erection in the prior art
When row main arch is installed, tubular arch line style can change with pouring for external wrapping concrete, cause knotted rope connector and knotted rope
After connection, knotted rope angle change can not be adapted to and cause unbalance stress, and then the normal mounting for influenceing steel pipe arch bridge, use be present
The problem of safe, there is provided knotted rope connector is hinged by a kind of steel pipe arch bridge knotted rope hookup and connecting method, the hookup
On tubular arch so that when angle change occurs for knotted rope, knotted rope connector adapts to knotted rope angle change and concomitant rotation, ensures
Knotted rope connector uniform force, more free state is in all the time, and then ensure the normal mounting and quality peace of steel pipe arch bridge
Entirely.
In order to realize foregoing invention purpose, the invention provides following technical scheme：
A kind of steel pipe arch bridge knotted rope hookup, including the knotted rope connector for being connected with knotted rope, it is connected with tubular arch and hangs
Component is filled, the lifting components are hinged with knotted rope connector.
This programme is fixedly connected with lifting components on tubular arch, and the fixation and lifting of tubular arch are realized by lifting components,
Lifting components and knotted rope connector are hinged so that knotted rope connector can be rotated freely with lifting components, and knotted rope is connected to knotted rope
On connector, when tubular arch external wrapping concrete web pours, as tubular arch external wrapping concrete load increases, tubular arch is linear
With the progress of work progress with changing, now knotted rope angle also changes therewith, and knotted rope and knotted rope connector are together
Relatively rotated with lifting components, when being changed so as to avoid knotted rope angle, knotted rope connector is made by larger active force
Total is more uniformly stressed, and protects Hoisting Steel Pipe Arch safe.
Preferably, the lifting components include fixed part, and the articulated section being connected with the fixed part, the fixed part with
Tubular arch is connected, and the articulated section is hinged by rotational pin and knotted rope connector.
Preferably, the fixed part is the multiple ring-type gussets being arranged on tubular arch outer wall, multiple ring-type gussets
Tubular arch outer wall is connected to side by side, and the articulated section is the otic placode being connected on multiple ring-type gussets.
Multiple ring-type gussets are set on tubular arch outer wall, so as to reduce the load that each ring-type gusset is undertaken, make steel
Pipeline overhead lifting is more uniformly stressed, and avoids stress from excessively concentrating and cause to damage to tubular arch.
The plate face of multiple ring-type gussets is almost parallel, and the plate face of each ring-type gusset is vertical with the axis of tubular arch, from
And multiple ring-type gussets are formed to tubular arch at multiple positions and supported, and fixed with tubular arch.
Preferably, connection socket is correspondingly offered on multiple ring-type gussets, the connection socket is penetrated to outside tubular arch
Wall, the otic placode is arranged in the connection socket, and is connected with ring-type gusset, tubular arch outer wall.
This structure type is taken, the connection reliability of lifting components and tubular arch can be improved.
Preferably, the otic placode includes the first otic placode and the second otic placode being arranged side by side, first otic placode and the second ear
Correspondingly offered for the hinge hole through rotational pin on plate.
Form articulated section by the way of the first otic placode and the combination of the second otic placode, ensure lifting components with knotted rope connector
With enough intensity when be hinged, the problem of effectively preventing to damage because of intensity deficiency.
Further, the otic placode is three-legged structure, and some angle position of two otic placodes correspondingly opens up hinge hole, with
The relative hypotenuse side of the hinge hole is connected on ring-type gusset, plate face and the tubular arch diameter parallel of the otic placode, and the ear
Plate face of the plate face of plate perpendicular to ring-type gusset.
Preferably, the fixed part is the sleeve for being sleeved on tubular arch outer wall, and the articulated section is to be connected to sleeve outer wall
Otic placode.
The fixed part of tube-in-tube structure form is taken to be connected to tubular arch outer wall, so as to increase contact of the fixed part with tubular arch
Area, ensure lifting components during tubular arch is lifted, field of load is bigger, while also more uniformly reasonable.
Further, the sleeve outer wall is connected with sleeve gusset, and sleeve gusset is arranged in sleeve both ends end, institute
State in the clip slot that otic placode is connected between two sleeve gussets, and the otic placode simultaneously with sleeve and sleeve link of boards.
Further, the sleeve connects with sleeve gusset integral type.
Preferably, the knotted rope connector includes being used to connect the gusset piece of knotted rope, and to be arranged on the gusset piece same
Two be hinged otic placodes in plate face, hinge hole is correspondingly offered on two be hinged otic placodes, and the rotational pin makes two through hinge hole
Individual be hinged otic placode is hinged with fixed part.
Length direction of two be hinged otic placodes along the gusset piece is set, so as to improve between be hinged otic placode and gusset piece
Connecting length, ensure knotted rope connector there is firm overall structure.
The plate face of the be hinged otic placode is vertical with the plate face of gusset piece.
Preferably, inner side gusset, two be hinged otic placodes outsides are provided with the clip slot between two be hinged otic placodes
Outside gusset is additionally provided between gusset piece, the inner side gusset connects gusset piece simultaneously and both sides are hinged otic placode, the outside
Link of boards is hinged otic placode and gusset piece.
Inner side gusset and outside gusset are set, make the structure of knotted rope connector there is reliability, so as to further real
Existing knotted rope and tubular arch are reliably connected.
Further, the inner side gusset is square structure, is placed it in the clip slot between two be hinged otic placodes, three
Individual face is connected be hinged otic placode, gusset piece respectively；The outside gusset is triangular structure, and its adjacent both sides connects connection respectively
Plate and be hinged otic placode.
Accordingly, present invention also offers a kind of tubular arch knotted rope connecting method, join using knotted rope as described above
When knot device is coupled, comprise the following steps：
A, lifting components are connected on tubular arch；
B, knotted rope connector is processed；
C, knotted rope is fastened on knotted rope connector；
D, knotted rope connector is lifted with knotted rope to target installation position, and inserts rotational pin, completes knotted rope connector and lifting structure
The installation connection of part
E, knotted rope tensioning is carried out, completes reorganization knotted rope construction.
Step a can also be carried out after step c, it is only necessary to before knotted rope connector is installed into lifting components, will lift structure
Part is connected on tubular arch.
Aforesaid way is taken, lifting components are arranged on tubular arch in advance, while pre-processed knotted rope connector, from
And the connection reliability of lifting components and tubular arch is ensure that, and knotted rope connector also has higher structure safety, passes through
The connecting method, knotted rope and knotted rope connector are hinged on by way of lifting on the lifting components on tubular arch so that button
During Suo Fasheng angle changes, knotted rope connector adapts to knotted rope angle change and concomitant rotation, guarantee knotted rope connector stress are equal
It is even, more free state is in all the time, so as to ensure the normal mounting of steel pipe arch bridge and quality safety.
Further, in step d, when lifting knotted rope connector is with knotted rope, lifted by cable crane.
Preferably, in the step a, when using the structure that otic placode and ring-type gusset assemble as lifting components, by ear
Plate and ring-type gusset are welded in factory and steel pipe.
Take this structure type, it is ensured that lifting components are connected reliably with tubular arch, ensure structure safety.
Compared with prior art, beneficial effects of the present invention：
1st, lifting components are fixedly connected with tubular arch, the fixation and lifting of tubular arch are realized by lifting components, structure will be lifted
Part is hinged with knotted rope connector so that and knotted rope connector can be rotated freely with lifting components, and knotted rope is connected on knotted rope connector,
When tubular arch external wrapping concrete web pours, as tubular arch external wrapping concrete load increases, tubular arch is linear with construction
The progress of process and with changing, now knotted rope angle also changes therewith, and knotted rope and knotted rope connector are together with lifting structure
Part relatively rotates, and when being changed so as to avoid knotted rope angle, knotted rope connector is made total by larger active force
It is more uniformly stressed, protects Hoisting Steel Pipe Arch safe；
The 2nd, multiple ring-type gussets are set on tubular arch outer wall, so as to reduce the load that each ring-type gusset is undertaken, make steel pipe
Arch is more uniformly stressed, and avoids stress from excessively concentrating and cause to damage to tubular arch；
3rd, the fixed part of tube-in-tube structure form is taken to be connected to tubular arch outer wall, so as to increase the contact surface of fixed part and tubular arch
Product, ensure lifting components during tubular arch is lifted, field of load is bigger, while also more uniformly reasonable；
4th, gusset on the inside of being set in the clip slot between two be hinged otic placodes, sets on the outside of two be hinged otic placodes between gusset piece
Outside gusset is put, makes the structure of knotted rope connector there is reliability, so as to further realize the reliable of knotted rope and tubular arch
Connection.
Brief description of the drawings
Fig. 1 is the structural representation of steel pipe arch bridge knotted rope hookup in embodiment 1.
Fig. 2 is the structural representation of steel pipe arch bridge knotted rope hookup in embodiment 2.
Fig. 3 is the structural representation of knotted rope connector in Fig. 1 and Fig. 2.
Marked in figure：1- knotted rope connectors, 11- gusset pieces, 12- are hinged otic placode, gusset on the inside of 13-, gusset on the outside of 14-,
2- lifting components, 21- fixed parts, 21a- ring-type gussets, 21b- connection sockets, 21c- sleeves, 21d- sleeve gussets, 22- are hinged
Portion, 22a- otic placodes, the otic placodes of 22a1- first, the otic placodes of 22a2- second, 3- rotational pins, 4- tubular archs.
Embodiment
With reference to test example and embodiment, the present invention is described in further detail.But this should not be understood
Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized
The scope of invention.
Embodiment 1
As shown in figures 1 and 3, steel pipe arch bridge knotted rope hookup, including the knotted rope connector 1 for being connected with knotted rope, steel pipe
Lifting components 2 are connected with arch 4, the lifting components 2 are be hinged with knotted rope connector 1.
As a kind of embodiment therein, the lifting components 2 include fixed part 21, and are connected with the fixed part 21
Articulated section 22, the fixed part 21 is connected with tubular arch 4, and the articulated section 22 is cut with scissors by rotational pin 3 and knotted rope connector 1
Connect.
As a kind of embodiment therein, the fixed part 21 is the multiple ring-type muscle being arranged on the outer wall of tubular arch 4
Plate 21a, multiple ring-type gusset 21a are connected to the outer wall of tubular arch 4 side by side, and the articulated section 22 is to be connected to multiple rings
Otic placode 22a on shape gusset 21a, multiple ring-type gusset 21a are set on the outer wall of tubular arch 4, so as to reduce each ring-type gusset
The load that 21a is undertaken, tubular arch 4 is more uniformly stressed, avoids stress from excessively concentrating and cause to damage to tubular arch 4.
Multiple ring-type gusset 21a plate face is almost parallel, and each ring-type gusset 21a plate face and the axis of tubular arch 4
Vertically, so that multiple ring-type gusset 21a form support at multiple positions to tubular arch 4, and fixed with tubular arch 4.
As a kind of embodiment therein, connection socket 21b is correspondingly offered on multiple ring-type gusset 21a, should
Connection socket 21b is penetrated to the outer wall of tubular arch 4, and the otic placode 22a is arranged in connection socket 21b, and with ring-type gusset
21a, the connection of the outer wall of tubular arch 4, so as to improve the connection reliability of lifting components 2 and tubular arch 4.
As a kind of embodiment therein, the otic placode 22a includes the first otic placode 22a1 and the second ear being arranged side by side
Correspondingly offered for the hinge hole through rotational pin 3 on plate 22a2, the first otic placode 22a1 and the second otic placode 22a2.
Articulated section 22 is formed by the way of the first otic placode 22a1 and the second otic placode 22a2 combinations, ensures that lifting components 2 exist
With knotted rope connector it is be hinged when with enough intensity, the problem of effectively preventing to damage because of intensity deficiency.
Further, the otic placode 22a is three-legged structure, and two otic placode 22a some angle position correspondingly opens up hinge
Hole is connect, the hypotenuse side relative with the hinge hole is connected on ring-type gusset 21a, plate face and the axis of tubular arch 4 of the otic placode 22a
It is parallel, and otic placode 22a plate face is perpendicular to ring-type gusset 21a plate face.
As a kind of embodiment therein, the knotted rope connector 1 includes being used for the gusset piece 11 for connecting knotted rope, and
Two be hinged otic placodes 12 being arranged in the 11 same plate face of gusset piece, hinge hole is correspondingly offered on two be hinged otic placodes 12,
The rotational pin 3 makes two be hinged otic placodes 12 be hinged with fixed part 21 through hinge hole.
Length direction of two be hinged otic placodes 12 along the gusset piece 11 is set, so as to improve be hinged otic placode 12 with coupling
Connecting length between plate 11, ensure that knotted rope connector 1 has firm overall structure.
The plate face of the be hinged otic placode 12 is vertical with the plate face of gusset piece 11.
As a kind of embodiment therein, inner side gusset 13 is provided with the clip slot between two be hinged otic placodes 12,
Outside gusset 14 is additionally provided between two be hinged outsides of otic placode 12 and gusset piece 11, the inner side gusset 13 connects connection simultaneously
Fishplate bar 11 and both sides are hinged otic placode 12, the connecting hinge ear connecting plate 12 of outside gusset 14 and gusset piece 11.
Inner side gusset 13 and outside gusset 14 are set, make the structure of knotted rope connector 1 there is reliability, so as to enter one
Step realizes being reliably connected for knotted rope and tubular arch.
Further, the inner side gusset 13 is square structure, the clip slot placed it between two be hinged otic placodes 12
Interior, three faces are connected be hinged otic placode 12, gusset piece 11 respectively, and the outside gusset 14 is triangular structure, its adjacent both sides
Gusset piece 11 and be hinged otic placode 12 are connected respectively.
Embodiment 2
The steel pipe arch bridge knotted rope hookup of the present embodiment is substantially the same manner as Example 1, as shown in Fig. 2 difference is admittedly
Determine the structure in portion 21, the fixed part 21 of the present embodiment is the sleeve 21c for being sleeved on the outer wall of tubular arch 4, and the articulated section 22 is company
It is connected on the otic placode 22a of sleeve 21c outer walls.
The fixed part of tube-in-tube structure form is taken to be connected to tubular arch outer wall, so as to increase contact of the fixed part with tubular arch
Area, ensure lifting components during tubular arch is lifted, field of load is bigger, while also more uniformly reasonable.
Further, the sleeve 21c outer walls are connected with sleeve gusset 21d, and sleeve gusset 21d is arranged in sleeve
21c both ends end, the otic placode 22a are connected in the clip slot between two sleeve gusset 21d, and otic placode 22a simultaneously with
Sleeve 21c connects with sleeve gusset 21d.
Further, the sleeve 21c connects with sleeve gusset 21d integral types.
Embodiment 3
Tubular arch knotted rope connecting method, as depicted in figs. 1 and 2, using the knotted rope hookup such as embodiment 1 or embodiment 2
When being coupled, comprise the following steps：
A, lifting components 2 are connected on tubular arch 4；
B, knotted rope connector 1 is processed；
C, knotted rope is fastened on knotted rope connector 1；
D, knotted rope connector 1 is lifted with knotted rope to target installation position, and inserts rotational pin 3, completes knotted rope connector 1 and lifting
The installation connection of component 2
E, knotted rope tensioning is carried out, completes reorganization knotted rope construction.
Step a can also be carried out after step c, it is only necessary to before knotted rope connector is installed into lifting components, will lift structure
Part is connected on tubular arch.
Aforesaid way is taken, lifting components are arranged on tubular arch in advance, while pre-processed knotted rope connector, from
And the connection reliability of lifting components and tubular arch is ensure that, and knotted rope connector also has higher structure safety, passes through
The connecting method, knotted rope and knotted rope connector are hinged on by way of lifting on the lifting components on tubular arch so that button
During Suo Fasheng angle changes, knotted rope connector adapts to knotted rope angle change and concomitant rotation, guarantee knotted rope connector stress are equal
It is even, more free state is in all the time, so as to ensure the normal mounting of steel pipe arch bridge and quality safety.
Further, in step d, when lifting knotted rope connector is with knotted rope, lifted by cable crane.
As a kind of embodiment therein, in the step a, in the knot assembled using otic placode 22a and ring-type gusset 21a
When structure is as lifting components 2, otic placode 22a and ring-type gusset 21a are welded in factory and steel pipe.
Take this structure type, it is ensured that lifting components are connected reliably with tubular arch, ensure structure safety.
Claims (10)
1. a kind of steel pipe arch bridge knotted rope hookup, it is characterised in that including the knotted rope connector for being connected with knotted rope, steel pipe
Lifting components are connected with arch, the lifting components are hinged with knotted rope connector.
2. steel pipe arch bridge knotted rope hookup according to claim 1, it is characterised in that the lifting components include fixing
Portion, and the articulated section being connected with the fixed part, the fixed part are connected with tubular arch, and the articulated section passes through rotational pin and button
Rope connector is hinged.
3. steel pipe arch bridge knotted rope hookup according to claim 2, it is characterised in that the fixed part is to be arranged on steel
Multiple ring-type gussets on pipeline overhead lifting outer wall, multiple ring-type gussets are connected to tubular arch outer wall side by side, and the articulated section is company
The otic placode being connected on multiple ring-type gussets.
4. steel pipe arch bridge knotted rope hookup according to claim 3, it is characterised in that right on multiple ring-type gussets
Connection socket should be offered, the connection socket is penetrated to tubular arch outer wall, and the otic placode is arranged in the connection socket, and and ring
Shape gusset, the connection of tubular arch outer wall.
5. steel pipe arch bridge knotted rope hookup according to claim 3, it is characterised in that the otic placode includes being arranged side by side
The first otic placode and the second otic placode, correspondingly offer on first otic placode and the second otic placode for through the be hinged of rotational pin
Hole.
6. steel pipe arch bridge knotted rope hookup according to claim 2, it is characterised in that the fixed part is to be sleeved on steel
The sleeve of pipeline overhead lifting outer wall, the articulated section are the otic placode for being connected to sleeve outer wall.
7. the steel pipe arch bridge knotted rope hookup according to one of claim 2-6, it is characterised in that the knotted rope connector
Including for connecting the gusset piece of knotted rope, and two be hinged otic placodes being arranged in the same plate face of the gusset piece, two are be hinged
Hinge hole is correspondingly offered on otic placode, the rotational pin makes two be hinged otic placodes be hinged with fixed part through hinge hole.
8. steel pipe arch bridge knotted rope hookup according to claim 7, it is characterised in that between two be hinged otic placodes
Clip slot in be provided with inner side gusset, be additionally provided with the outside of two be hinged otic placodes between gusset piece on the outside of gusset, the inner side
Gusset connects gusset piece simultaneously and both sides are hinged otic placode, and the outside link of boards is hinged otic placode and gusset piece.
9. a kind of tubular arch knotted rope connecting method, it is characterised in that using the steel pipe arch bridge as described in one of claim 1-8
When knotted rope hookup is coupled, comprise the following steps：
A, lifting components are connected on tubular arch；
B, knotted rope connector is processed；
C, knotted rope is fastened on knotted rope connector；
D, knotted rope connector is lifted with knotted rope to target installation position, and inserts rotational pin, completes knotted rope connector and lifting structure
The installation connection of part
E, knotted rope tensioning is carried out, completes reorganization knotted rope construction.
10. tubular arch knotted rope connecting method according to claim 9, it is characterised in that in the step a, using ear
When plate and the structure of ring-type gusset assembling are as lifting components, otic placode and ring-type gusset are welded in factory and steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711425277.9A CN107841955A (en) | 2017-12-25 | 2017-12-25 | A kind of steel pipe arch bridge knotted rope hookup and connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711425277.9A CN107841955A (en) | 2017-12-25 | 2017-12-25 | A kind of steel pipe arch bridge knotted rope hookup and connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107841955A true CN107841955A (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711425277.9A Pending CN107841955A (en) | 2017-12-25 | 2017-12-25 | A kind of steel pipe arch bridge knotted rope hookup and connecting method |
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| CN (1) | CN107841955A (en) |
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| CN112609576A (en) * | 2020-11-19 | 2021-04-06 | 中铁二局集团有限公司 | Method and device for positioning and installing spatial attitude of stay cable guide pipe |
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| CN112609576B (en) * | 2020-11-19 | 2022-05-31 | 中铁二局集团有限公司 | Method and device for positioning and installing spatial attitude of stay cable guide pipe |
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Application publication date: 20180327 |