CN110820523A - Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method - Google Patents
Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method Download PDFInfo
- Publication number
- CN110820523A CN110820523A CN201911158031.9A CN201911158031A CN110820523A CN 110820523 A CN110820523 A CN 110820523A CN 201911158031 A CN201911158031 A CN 201911158031A CN 110820523 A CN110820523 A CN 110820523A
- Authority
- CN
- China
- Prior art keywords
- connecting plate
- cable
- original
- new
- cable strand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a cable strand connecting structure, an anchorage structure and a construction method for replacing a main cable of a suspension bridge, wherein the cable strand connecting structure comprises an original cable strand connecting plate and a new cable strand connecting plate; the new cable strand connecting plate comprises a first connecting plate and a second connecting plate which are detachably connected, and the first connecting plate and the second connecting plate are respectively positioned on two sides of the original cable strand connecting plate; the first connecting plate and the second connecting plate are respectively provided with a first protruding part clamped on the lower end surface of the original cable strand connecting plate; the first connecting plate and the second connecting plate are provided with anchor holes for connecting a new main cable strand anchoring structure. The invention discloses a cable strand connecting structure, an anchorage structure and a construction method for replacing a main cable of a suspension bridge.
Description
Technical Field
The invention relates to an anchorage structure, in particular to a strand connecting structure for replacing a main cable of a suspension bridge, the anchorage structure and a construction method.
Background
The suspension bridge is used as a bridge with the largest spanning capability and is developed rapidly in China, and a main cable used as a life line of the suspension bridge is a main subject of research of engineering technicians of various countries all over the world, and particularly the research on corrosion prevention of the main cable is particularly emphasized, because the consequence is unimaginable if a cable system is corroded. In order to ensure the safety of a bridge and the safety of a cable structure, the cable needs to be protected by corrosion prevention, but the corrosion prevention research of a main cable of a suspension bridge has not yet achieved a satisfactory result so far, and therefore, at present, a plurality of bridge inhaul cables still solve the problems of corrosion prevention and safety performance of the bridge inhaul cables by means of cable replacement; in a structure system of a suspension bridge, a cable clamp capable of replacing a main cable is used on a newly-built small suspension bridge, the main cable of the suspension bridge can be replaced after the cable clamp is used, in an anchorage system, the problem of anchoring of a new main cable is solved through the newly-built anchorage system, and in the replacement construction of the main cable of the large and built suspension bridge, an anchorage structure and a method for anchoring the new main cable are obtained by improving the original anchorage structure.
Disclosure of Invention
Aiming at the problems, the invention provides a strand connecting structure, an anchorage structure and a construction method for replacing a main cable of a suspension bridge, aiming at solving the problem of how to improve the original anchorage structure to obtain the anchorage structure for anchoring a new main cable in the construction of replacing the main cable; how to change main cable, hoist cable and improve the anchorage structure under the condition that does not influence the traffic.
The invention adopts the following technical scheme to realize the purpose:
a cable strand connecting structure for replacing a main cable of a suspension bridge comprises an original cable strand connecting plate and a new cable strand connecting plate; the new cable strand connecting plate comprises a first connecting plate and a second connecting plate which are detachably connected, and the first connecting plate and the second connecting plate are respectively positioned on two sides of the original cable strand connecting plate; the first connecting plate and the second connecting plate are respectively provided with a first protruding part clamped on the lower end surface of the original cable strand connecting plate; the first connecting plate and the second connecting plate are provided with anchor holes for connecting a new main cable strand anchoring structure. According to the technical scheme, the detachable first connecting plate and the detachable second connecting plate are adopted, so that the installation and the construction are convenient, and the first protruding part is used for limiting the upward movement of the new cable strand connecting plate in the processes of tensioning construction and later use; the original anchor structure is improved to be a new main cable anchor structure on the basis of the original anchor structure, the original anchor structure can be used for bearing the anchoring force of the main cable in the construction process, and the original anchor structure is dismantled after the new anchor structure and the new main cable are installed, so that traffic is not influenced in the construction process.
The further technical scheme is that the original cable strand connecting plate is connected with a first pull rod, one end of the first pull rod is anchored on the bottom surface of the original cable strand connecting plate through a first locking nut, and the other end of the first pull rod penetrates through the original cable strand connecting plate and is connected with an original cable strand anchor head; the upper end of the original cable strand connecting plate is provided with an anchor head protecting cover; the first connecting plate and the second connecting plate are provided with structures avoiding the first pull rod and the anchor head protective cover.
The further technical scheme is that the first connecting plate and the second connecting plate are connected through a locking screw and a nut which are matched with each other.
The anchor structure for replacing the main cable of the suspension bridge comprises the cable strand connecting structure, a second pull rod penetrating through an anchor hole, a new cable strand anchor head connected with the top end of the second pull rod, and a second locking nut connected with the bottom end of the second pull rod, wherein the second pull rod is provided with a thread matched with the second locking nut; the new cable strand anchor head is used for anchoring a new main cable strand; and the second locking nut is clamped at the bottom end of the anchor hole.
The further technical scheme is that the construction method of the anchorage structure for replacing the main cable of the suspension bridge comprises the following steps:
A) installing a new cable strand connecting plate;
B) installing a new main cable strand anchoring structure and connecting the new main cable strand anchoring structure with a new strand connecting plate through an anchor hole;
C) installing a new main cable strand and adjusting the line shape of the new main cable to the design requirement;
D) and after the new main cable system is converted, removing the original main cable strand and the original cable strand anchor head.
The further technical scheme is that the step A also comprises the following steps:
A1) recording the original main cable force;
A2) removing the first pull rod;
A3) installing a first connecting plate and a second connecting plate on two sides of an original cable strand connecting plate;
A4) penetrating the first pull rod through the original cable strand connecting plate and the new cable strand connecting plate, and anchoring through a first locking nut;
A5) and tensioning the original main cable to the original cable force.
The further technical scheme is that the step B also comprises the following steps:
B1) a second pull rod is arranged at the anchor hole;
B2) installing a new cable strand anchor head at the top end of the second pull rod;
B3) and a second locking nut is arranged at the bottom end of the second pull rod.
The working principle of the invention is as follows:
the middle section of a main cable of the conventional suspension bridge is connected with a beam end through a sling structure, two ends of the main cable respectively pass through a main cable saddle at the top of the tower and then respectively pass through a cable scattering saddle, the cable scattering saddle changes the force transmission direction of the main cable and disperses the main cable into a plurality of cable strands, and the cable strands are respectively anchored on anchor structures corresponding to the cable strands. The invention adopts the cable strand connecting structure and the anchor structure to replace the anchor part of the main cable of the suspension bridge, in the installation process of the anchor connecting structure, the anchor connecting structure is installed on the basis of the continuous work of the original anchor structure, the anchor system of the suspension bridge is composed of a plurality of anchor structures, the original anchor structures are improved one by one in the installation process, and therefore, the integral use function of the anchor system of the suspension bridge and the integral stress condition of the original main cable are not influenced.
The invention has the beneficial effects that:
1. the cable strand connecting structure for replacing the main cable of the suspension bridge, the anchor structure and the construction method can ensure that a new main cable strand is safely and reliably connected with an original anchor, can conveniently convert a new main cable system and an old main cable system, and ensure that the main cable is safe, reliable, stable and durable during and after cable replacement.
2. According to the cable strand connecting structure for replacing the main cable of the suspension bridge, the anchorage structure and the construction method, the structure at the anchorage replacing position of the main cable of the suspension bridge is simple and reasonable, the stress is clear, the installation is convenient, and the replacement cost of the connecting structure at the anchorage position is low.
3. According to the strand connecting structure for replacing the main cable of the suspension bridge, the anchorage structure and the construction method, a new main cable anchorage structure is improved on the basis of an original anchorage structure, the original anchorage structure can be used for bearing the anchorage force of the main cable in the construction process, and the original anchorage structure is dismantled after the new anchorage structure and the new main cable are installed, so that traffic is not influenced in the construction process; and the operation of adjusting the line shape of the hanging cable of the new main cable is convenient, the old main cable is easy to remove, and the removing steps are simple and convenient.
Drawings
FIG. 1 is a diagram: the invention discloses a schematic structural diagram of an anchorage for replacing a main cable of a suspension bridge.
FIG. 2 is a diagram of: the invention discloses a structural schematic diagram of a new strand connecting plate for replacing a main cable of a suspension bridge.
FIG. 3 is a diagram of: the invention discloses a schematic diagram of an anchor structure for replacing a main cable of a suspension bridge to form an avoiding structure.
FIG. 4 is a diagram of: the invention discloses a schematic diagram of a connecting structure of a new cable strand with a first pull rod hole for replacing a main cable of a suspension bridge.
FIG. 5 is a diagram: the invention discloses a schematic diagram of a connecting structure of a new cable strand with a sliding groove for replacing a main cable of a suspension bridge.
FIG. 6 is a diagram of: the invention discloses a schematic diagram of a connection structure of original cable strands of a suspension bridge.
FIG. 7 is a diagram of: the invention discloses a structural schematic diagram of a new cable strand connecting plate.
FIG. 8 is a diagram of: the invention also discloses a novel cable strand connecting structure.
In the figure:
1. original cable strand connecting plates; 11. an anchor head protective cover; 101. an original anchor head; 110. avoiding holes; 15. an anchor head of the pre-stressed anchor; 2. connecting plates of new cable strands; 21. a first connecting plate; 22. a second connecting plate; 201. a new strand anchor head; 202. a first protrusion; 220. an anchor eye; 230. a first tie rod hole; 31. a first pull rod; 310. a first lock nut; 312. a chute; 41. a second pull rod; 410. and a second lock nut.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 8 and the embodiments, and features in the following examples and embodiments may be combined with each other without conflict.
As shown in fig. 6, the original cable connecting structure to be replaced in this embodiment includes an original cable connecting plate 1, a prestressed anchorage located at the lower end of the original cable connecting plate 1, a first pull rod 31 and an original anchorage 101 located at the upper end of the original cable connecting plate 1, the upper end surface of the original cable connecting plate 1 is clamped to an anchorage 15 of the prestressed anchorage, the prestressed anchorage provides a downward pulling force to the original cable connecting plate 1, the lower end of the first pull rod 31 penetrates through a pull rod hole in the original cable connecting plate 1 and is connected to a nut, the nut is clamped to the lower end surface of the pull rod hole, the upper end of the first pull rod 31 is connected to the original anchorage 101, the original anchorage 101 is connected to an old main cable, the first pull rod 31 provides an upward pulling force to the original cable connecting plate 1, and therefore the original cable connecting plate 1 is in a balanced state during use; in practical engineering, an anchor head protective cover 11 can be installed on the periphery of an anchor head 15 of the prestressed anchorage device and connected with an original cable strand connecting plate 1 through screws, and an original cable strand connecting cylinder is arranged at the lower end of the original cable strand connecting plate 1 and connected with the original cable strand connecting plate 1 through screws.
The embodiment discloses a strand connecting plate for replacing a main cable of a suspension bridge, which is used for replacing the main cable, wherein a new main cable is positioned above an old main cable, and comprises an original strand connecting plate 1 and a new strand connecting plate 2 as shown in figure 1;
the original anchor structure comprises an original cable strand connecting plate 1, wherein the original cable strand connecting plate 1 is provided with a first pull rod 31 penetrating through the upper end surface and the lower end surface of the original cable strand connecting plate 1, one end of the first pull rod 31 is anchored on the bottom end surface of the original cable strand connecting plate 1 through a first locking nut 310, the other end of the first pull rod is connected with an original cable strand anchor head 101, the original cable strand anchor head 101 is used for anchoring an original main cable, and an anchor head protective cover 11 is arranged at the upper end of the original cable strand connecting plate 1 and between the first pull rods 31;
the new cable strand connecting plate 2 comprises a first connecting plate 21 and a second connecting plate 22 which are detachably connected, and the first connecting plate and the second connecting plate are respectively positioned on two sides of the original cable strand connecting plate 1; the first connecting plate 21 and the second connecting plate 22 are both provided with a first protruding part 202 clamped on the lower end face of the original strand connecting plate 1, and the first protruding part 202 is used for limiting the upward movement of the new strand connecting plate 2 under the action of the tension of a new main cable; the first connecting plate 21 and the second connecting plate 22 are both provided with anchor holes 220 for connecting a new main cable strand anchoring structure; the edges of the upper end faces of the first connecting plate 21 and the second connecting plate 22 respectively extend to the first pull rod 31 close to one side of the first connecting plate, so that the first pull rod 31 does not need to be detached when a new cable strand connecting plate is installed; the angle of the anchor hole 220 is determined according to the installation position and the tension force of the new main cable, and is not limited herein;
the anchor structure adopting the strand connecting plate further comprises a second pull rod 41 penetrating through the anchor hole 220, a new strand anchor head 201 connected with the top end of the second pull rod 41, and a second locking nut 410 connected with the bottom end of the second pull rod 41, wherein the second pull rod 41 is provided with a thread matched with the second locking nut 410; the new cable strand anchor head 201 is used for anchoring a new main cable strand; the second lock nut 410 is caught at the bottom end of the anchor hole 220. The construction method comprises the following steps:
A) installing a new cable strand connecting plate, and respectively installing a first connecting plate and a second connecting plate on two sides of the original cable strand connecting plate;
B) installing a new main cable strand anchoring structure and connecting the new main cable strand anchoring structure with a new cable strand connecting plate through an anchoring hole,
B1) a second pull rod is arranged at the anchor hole,
B2) a new strand anchor head is arranged at the top end of the second pull rod and is used for anchoring a new main cable strand,
B3) a second locking nut is arranged at the bottom end of the second pull rod and is positioned at the bottom end of the anchor hole;
C) installing a new main cable strand, adjusting the shape of the new main cable strand to the design requirement, and tensioning the new main cable strand in the installation process to enable the first protruding parts at the bottoms of the first connecting plate and the second connecting plate to be matched with the bottom surface of the original cable strand connecting plate, so that the new cable strand connecting plate is limited to move upwards under the action of the tension of the new main cable strand, and the new cable strand connecting plate is fixed;
D) and after the new main cable system is converted, removing the original main cable strand and the original cable strand anchor head.
The above-mentioned embodiment exemplarily shows the strand connecting plate with the length of the upper end surface of the first connecting plate 21 and the second connecting plate 22 being less than that of the first pull rod 31, and according to other embodiments and practical applications, the first connecting plate 21 and the second connecting plate 22 may be replaced by a structure avoiding the first pull rod 31 and the anchor head protecting cover 11, for example:
1. as shown in fig. 3 and 4, the upper end surfaces of the first connecting plate 21 and the second connecting plate 22 are provided with first pull rod holes 230 at positions corresponding to the first pull rods 31, and the abutting structure of the first connecting plate 21 and the second connecting plate 22 forms an avoiding hole 110 avoiding the anchor head protective cover 11; the construction method comprises the following steps:
A) installing a new strand connecting plate, specifically,
A1) the original main cable force is recorded,
A2) the first pull rod is removed, and the first pull rod is pulled out,
A3) a first connecting plate and a second connecting plate are arranged on two sides of the original cable strand connecting plate,
A4) the first pull rod penetrates through the original cable strand connecting plate and the new cable strand connecting plate and is anchored by a first locking nut,
A5) tensioning the original main cable to the recorded cable force;
B) installing a new main cable strand anchoring structure and connecting the new main cable strand anchoring structure with a new cable strand connecting plate through an anchoring hole,
B1) a second pull rod is arranged at the anchor hole,
B2) a new strand anchor head is arranged at the top end of the second pull rod and is used for anchoring a new main cable strand,
B3) a second locking nut is arranged at the bottom end of the second pull rod and is positioned at the bottom end of the anchor hole;
C) installing a new main cable strand, adjusting the shape of the new main cable strand to the design requirement, and tensioning the new main cable strand in the installation process to enable the first protruding parts at the bottoms of the first connecting plate and the second connecting plate to be matched with the bottom surface of the original cable strand connecting plate, so that the new cable strand connecting plate is limited to move upwards under the action of the tension of the new main cable strand, and the new cable strand connecting plate is fixed;
D) and after the new main cable system is converted, removing the original main cable strand and the original cable strand anchor head.
2. As shown in fig. 3 and 5, the abutting structure of the first connecting plate 21 and the second connecting plate 22 forms an avoidance hole 110 for avoiding the anchor head protective cover 11, and forms a chute 312 for avoiding the relative movement track of the first pull rod 31 in the installation process of the first connecting plate 21 and the second connecting plate 22; the construction method comprises the following steps:
A) installing a new cable connecting plate, respectively installing a first connecting plate and a second connecting plate on two sides of the original cable connecting plate, wherein the butt joint structure of the first connecting plate 21 and the second connecting plate 22 forms a dodging hole 110 and a sliding groove 312 for dodging relative movement of the anchor head protective cover 11 and the first pull rod 31, so that the first pull rod 31 does not need to be detached when the new cable connecting plate is installed; (ii) a
B) Installing a new main cable strand anchoring structure and connecting the new main cable strand anchoring structure with a new cable strand connecting plate through an anchoring hole,
B1) a second pull rod is arranged at the anchor hole,
B2) a new strand anchor head is arranged at the top end of the second pull rod and is used for anchoring a new main cable strand,
B3) a second locking nut is arranged at the bottom end of the second pull rod and is positioned at the bottom end of the anchor hole;
C) installing a new main cable strand, adjusting the shape of the new main cable strand to the design requirement, and tensioning the new main cable strand in the installation process to enable the first protruding parts at the bottoms of the first connecting plate and the second connecting plate to be matched with the bottom surface of the original cable strand connecting plate, so that the new cable strand connecting plate is limited to move upwards under the action of the tension of the new main cable strand, and the new cable strand connecting plate is fixed;
D) and after the new main cable system is converted, removing the original main cable strand and the original cable strand anchor head.
The new main cable strand anchoring structure is exemplarily shown in the above embodiment, and according to other embodiments and practical applications, a pressure-bearing type cable strand anchor head and an adjusting thread type cable strand anchor head may be used instead, wherein one end of the pressure-bearing type cable strand anchor head is located at the bottom end of the anchor hole 220, and the new main cable strand penetrates through the anchor hole 220 and is connected with the anchor structure at the other end; the anchor head of the adjusting thread type cable strand is matched with the thread of the inner ring of the anchor hole 220, and the new main cable strand penetrates through the anchor hole 220 to be structurally connected with the anchor at the other end.
The above embodiment exemplarily shows that the position of the first protrusion 202 is located at the bottom surfaces of the first connecting plate 21 and the second connecting plate 22, and other positions may be substituted according to other embodiments or practical applications, for example, as shown in fig. 7 and 8, two first protrusions 202 are respectively located at the opposite side surfaces of the first connecting plate 21 and the second connecting plate 22, and the position of the first protrusion 202 is related to the thickness of the original strand connecting plate 1, and is not limited to a specific position.
In another embodiment, the first connecting plate 21 and the second connecting plate 22 are connected by a locking screw and a nut which are matched with each other, so that the stability of the strand connecting plate in the construction process and the later use process is further improved.
The cable strand connecting structure for replacing the main cable of the suspension bridge, the anchorage structure and the construction method can ensure that a new main cable strand is safely and reliably connected with an original anchorage, can conveniently convert a new main cable system and an old main cable system, and ensure that the main cable is safe, reliable, stable and durable during and after cable replacement; the anchorage replacing part of the main cable of the suspension bridge has the advantages of simple and reasonable structure, definite stress, convenience in installation and lower replacement cost of the connecting structure at the anchorage; the original anchor structure is improved to be a new main cable anchor structure on the basis of the original anchor structure, the original anchor structure can be used for bearing the anchoring force of the main cable in the construction process, and the original anchor structure is dismantled after the new anchor structure and the new main cable are installed, so that traffic is not influenced in the construction process; and the operation of adjusting the line shape of the hanging cable of the new main cable is convenient, the old main cable is easy to remove, and the removing steps are simple and convenient.
Claims (7)
1. A cable strand connecting structure for replacing a main cable of a suspension bridge is characterized by comprising an original cable strand connecting plate (1) and a new cable strand connecting plate (2); the new cable strand connecting plate (2) comprises a first connecting plate (21) and a second connecting plate (22) which are detachably connected, and the first connecting plate and the second connecting plate are respectively positioned on two sides of the original cable strand connecting plate (1);
the first connecting plate (21) and the second connecting plate (22) are provided with first protruding parts (202) clamped on the lower end face of the original cable strand connecting plate (1); the first connecting plate (21) and the second connecting plate (22) are provided with anchor holes (220) used for connecting a new main cable strand anchoring structure.
2. The cable connecting structure for replacing main cables of a suspension bridge according to claim 1, wherein a first pull rod (31) is connected to the original cable connecting plate (1), one end of the first pull rod (31) is anchored to the bottom surface of the original cable connecting plate (1) through a first locking nut (310), and the other end of the first pull rod penetrates through the original cable connecting plate (1) and is connected with an original cable anchor head (101); an anchor head protective cover (11) is arranged at the upper end of the original cable strand connecting plate (1);
the first connecting plate (21) and the second connecting plate (22) are provided with structures avoiding the first pull rod (31) and the anchor head protective cover (11).
3. A suspension bridge king-wire connection according to claim 1, wherein the first connecting plate (21) and the second connecting plate (22) are connected by means of cooperating locking screws and nuts.
4. An anchorage structure for replacing a main cable of a suspension bridge, which is characterized by comprising the cable strand connecting structure of claims 1 to 3, and further comprising a second pull rod (41) penetrating through an anchor hole (220), a new cable strand anchor head (201) connected with the top end of the second pull rod (41), and a second locking nut (410) connected with the bottom end of the second pull rod (41), wherein the second pull rod (41) is provided with a thread matched with the second locking nut (410); the new cable strand anchor head (201) is used for anchoring a new main cable strand; the second locking nut (410) is clamped at the bottom end of the anchor hole (220).
5. A construction method of an anchorage structure for replacing a main cable of a suspension bridge is characterized by comprising the anchorage structure of claim 4, and comprises the following steps:
A) installing a new cable strand connecting plate;
B) installing a new main cable strand anchoring structure and connecting the new main cable strand anchoring structure with a new strand connecting plate through an anchor hole;
C) installing a new main cable strand and adjusting the line shape of the new main cable to the design requirement;
D) and after the new main cable system is converted, removing the original main cable strand and the original cable strand anchor head.
6. The construction method of an anchorage structure for replacing a main cable of a suspension bridge according to claim 5, wherein the step A further comprises:
A1) recording the original main cable force;
A2) removing the first pull rod;
A3) installing a first connecting plate and a second connecting plate on two sides of an original cable strand connecting plate;
A4) penetrating the first pull rod through the original cable strand connecting plate and the new cable strand connecting plate, and anchoring through a first locking nut;
A5) and tensioning the original main cable to the original cable force.
7. The construction method of an anchorage structure for replacing a main cable of a suspension bridge according to claim 6, wherein the step B further comprises:
B1) a second pull rod is arranged at the anchor hole;
B2) installing a new cable strand anchor head at the top end of the second pull rod;
B3) and a second locking nut is arranged at the bottom end of the second pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158031.9A CN110820523B (en) | 2019-11-22 | 2019-11-22 | Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158031.9A CN110820523B (en) | 2019-11-22 | 2019-11-22 | Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110820523A true CN110820523A (en) | 2020-02-21 |
| CN110820523B CN110820523B (en) | 2020-12-29 |
Family
ID=69558383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911158031.9A Active CN110820523B (en) | 2019-11-22 | 2019-11-22 | Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110820523B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2534948A1 (en) * | 1982-10-22 | 1984-04-27 | Arnodin Sa Ets | Method for replacing a layer of suspension cables of a suspension bridge allowing the bridge to remain in service throughout the operation |
| EP0195861A1 (en) * | 1983-04-14 | 1986-10-01 | David Richan Webster | Suspension bridge |
| CN2739227Y (en) * | 2004-11-06 | 2005-11-09 | 柳州欧维姆机械股份有限公司 | Changeable suspension bridge anchored prestressed anchoring system |
| EP1767699A1 (en) * | 2004-06-09 | 2007-03-28 | Incorporated Administrative Agency Public Works Research Institute | Cable stayed suspension bridge making combined use of one-box and two-box girders |
| CN201144393Y (en) * | 2008-01-08 | 2008-11-05 | 中交第二公路勘察设计研究院有限公司 | Replaceable prestressed device for suspension bridge anchor |
| CN203160131U (en) * | 2013-03-21 | 2013-08-28 | 柳州欧维姆机械股份有限公司 | Combined-type cable clamp with replaceable main cable |
| CN103526699A (en) * | 2013-10-21 | 2014-01-22 | 中国石油化工股份有限公司 | Method for replacing pipe bridge hanging steel ropes |
| CN203475306U (en) * | 2013-07-18 | 2014-03-12 | 柳州欧维姆机械股份有限公司 | Replaceable external anchor cable |
| CN104233962A (en) * | 2014-08-11 | 2014-12-24 | 王双其 | Method for reinforcing and strengthening main cable of suspension bridge |
| CN104372738A (en) * | 2014-10-30 | 2015-02-25 | 柳州欧维姆机械股份有限公司 | Single-cable-replaceable type anchorage pre-stressed anchor device and installation and cable replacement methods thereof |
| CN204298735U (en) * | 2014-10-30 | 2015-04-29 | 柳州欧维姆机械股份有限公司 | A kind of single replaceable anchorage prestressed anchor fixing apparatus |
| CN107119572A (en) * | 2017-06-22 | 2017-09-01 | 四川路桥华东建设有限责任公司 | A kind of main rope of suspension bridge strand second traction enters the construction method of tunnel anchorage |
| JP2018003526A (en) * | 2016-07-07 | 2018-01-11 | 三井造船鉄構エンジニアリング株式会社 | Replacement method for main cable of suspension bridge |
| CN108118622A (en) * | 2018-02-06 | 2018-06-05 | 中交二公局第二工程有限公司 | A kind of steel-concrete composite beam cable-stayed bridge main cable and girder construction cable crane system |
| CN108660946A (en) * | 2018-04-20 | 2018-10-16 | 武汉中交试验检测加固工程有限责任公司 | A method of replacing suspension bridge main rope |
| JP2019143377A (en) * | 2018-02-21 | 2019-08-29 | 日本橋梁株式会社 | Suspension material replacement device and suspension material replacement method |
-
2019
- 2019-11-22 CN CN201911158031.9A patent/CN110820523B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2534948A1 (en) * | 1982-10-22 | 1984-04-27 | Arnodin Sa Ets | Method for replacing a layer of suspension cables of a suspension bridge allowing the bridge to remain in service throughout the operation |
| EP0195861A1 (en) * | 1983-04-14 | 1986-10-01 | David Richan Webster | Suspension bridge |
| EP1767699A1 (en) * | 2004-06-09 | 2007-03-28 | Incorporated Administrative Agency Public Works Research Institute | Cable stayed suspension bridge making combined use of one-box and two-box girders |
| CN2739227Y (en) * | 2004-11-06 | 2005-11-09 | 柳州欧维姆机械股份有限公司 | Changeable suspension bridge anchored prestressed anchoring system |
| CN201144393Y (en) * | 2008-01-08 | 2008-11-05 | 中交第二公路勘察设计研究院有限公司 | Replaceable prestressed device for suspension bridge anchor |
| CN203160131U (en) * | 2013-03-21 | 2013-08-28 | 柳州欧维姆机械股份有限公司 | Combined-type cable clamp with replaceable main cable |
| CN203475306U (en) * | 2013-07-18 | 2014-03-12 | 柳州欧维姆机械股份有限公司 | Replaceable external anchor cable |
| CN103526699A (en) * | 2013-10-21 | 2014-01-22 | 中国石油化工股份有限公司 | Method for replacing pipe bridge hanging steel ropes |
| CN104233962A (en) * | 2014-08-11 | 2014-12-24 | 王双其 | Method for reinforcing and strengthening main cable of suspension bridge |
| CN104372738A (en) * | 2014-10-30 | 2015-02-25 | 柳州欧维姆机械股份有限公司 | Single-cable-replaceable type anchorage pre-stressed anchor device and installation and cable replacement methods thereof |
| CN204298735U (en) * | 2014-10-30 | 2015-04-29 | 柳州欧维姆机械股份有限公司 | A kind of single replaceable anchorage prestressed anchor fixing apparatus |
| JP2018003526A (en) * | 2016-07-07 | 2018-01-11 | 三井造船鉄構エンジニアリング株式会社 | Replacement method for main cable of suspension bridge |
| CN107119572A (en) * | 2017-06-22 | 2017-09-01 | 四川路桥华东建设有限责任公司 | A kind of main rope of suspension bridge strand second traction enters the construction method of tunnel anchorage |
| CN108118622A (en) * | 2018-02-06 | 2018-06-05 | 中交二公局第二工程有限公司 | A kind of steel-concrete composite beam cable-stayed bridge main cable and girder construction cable crane system |
| JP2019143377A (en) * | 2018-02-21 | 2019-08-29 | 日本橋梁株式会社 | Suspension material replacement device and suspension material replacement method |
| CN108660946A (en) * | 2018-04-20 | 2018-10-16 | 武汉中交试验检测加固工程有限责任公司 | A method of replacing suspension bridge main rope |
Non-Patent Citations (4)
| Title |
|---|
| 彭元诚等: "悬索桥可换式预应力钢绞线锚固系统", 《湖北省公路学会二○○九年学术年会论文集》 * |
| 高洪波等: "某悬索斜拉索组合式跨越管桥的换索设计", 《桥梁建设》 * |
| 黄家珍等: "悬索桥可换式主缆的研究", 《预应力技术》 * |
| 黄鹤等: "斜拉－悬索管桥主缆及吊索更换施工控制分析", 《交通科技》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110820523B (en) | 2020-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101509231B (en) | Construction method for quickly assembling and disassembling guy cable of stayed-cable bridge | |
| AU782827B2 (en) | Adjustable anchor bearing a civil engineering structure | |
| CN208395696U (en) | Bridge prestress carbon fiber board ruggedized construction | |
| CN207878295U (en) | Suspension bridge changes rope device | |
| CN110820523B (en) | Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method | |
| CN210066533U (en) | Device is changed to suspension bridge strides formula hoist cable | |
| CN109537476B (en) | Pin lug type double-temporary-rope self-balancing pulling type suspension bridge sling replacement underpinning device | |
| CN209758838U (en) | Special lifting appliance device for lifting T beam by bridge girder erection machine | |
| CN110878517B (en) | Connecting structure, fixing structure, new main cable system and construction method for replacing main cable of suspension bridge | |
| CN203229315U (en) | Special hoisting clamp for sector eccentric block | |
| CN211815493U (en) | Cable strand connecting structure and anchorage structure for replacing main cable of suspension bridge | |
| CN211848843U (en) | Cable strand connecting structure and anchorage structure for replacing main cable of suspension bridge | |
| CN110820525A (en) | Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method | |
| CN202214681U (en) | Suspension bridge sling replacing device | |
| CN110820521A (en) | Cable strand connecting structure for replacing main cable of suspension bridge, anchorage structure and construction method | |
| CN210482007U (en) | Slab band device at bottom of bridge hollow slab | |
| CN102286943A (en) | Suspension bridge sling replacing device | |
| CN110820524B (en) | Connecting structure, fixing structure, new main cable system and construction method for replacing main cable of suspension bridge | |
| CN213573074U (en) | Simple and easy stay wire of power line changes auxiliary device | |
| CN108045514B (en) | Fishing device for bridge construction | |
| CN219793695U (en) | Suspension bridge sling replacement device | |
| CN111305033B (en) | Connecting structure, fixing structure, new main cable system and construction method for replacing main cable of suspension bridge | |
| CN111058388A (en) | Suspension bridge sling replacement underpinning device | |
| CN215631827U (en) | Reinforcing device of box girder structure | |
| CN204781997U (en) | A device subassembly that is used for stretch -draw fork ear formula cable or steel pull -rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |