CN112144410A - Self-anchored suspension bridge main cable tightening pre-tightening device and method - Google Patents
Self-anchored suspension bridge main cable tightening pre-tightening device and method Download PDFInfo
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- CN112144410A CN112144410A CN202011008755.8A CN202011008755A CN112144410A CN 112144410 A CN112144410 A CN 112144410A CN 202011008755 A CN202011008755 A CN 202011008755A CN 112144410 A CN112144410 A CN 112144410A
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- tightening
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- tightening rope
- main cable
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the field of suspension bridge cable tightening, in particular to a self-anchored suspension bridge main cable tightening pre-tightening device and a self-anchored suspension bridge main cable tightening pre-tightening method, wherein the pre-tightening device comprises a plurality of pre-tightening mechanisms, each pre-tightening mechanism comprises a first pre-tightening rope and a second pre-tightening rope, one end of each first pre-tightening rope is fixedly connected with a catwalk, and one end of each second pre-tightening rope is detachably connected with the catwalk; the other end of the first pre-tightening rope is provided with a clamping groove, the side wall of the other end of the first pre-tightening rope is provided with a through groove communicated with the clamping groove, the through groove is rotatably connected with an arc-shaped plate, the other end of the second pre-tightening rope can be inserted into the inserting groove, one end of the arc-shaped plate can be clamped with the other end of the second pre-tightening rope, and the middle part of the second pre-tightening rope can abut against the other end of the arc-shaped plate; the pre-tightening method comprises the following steps of 1: tightening and pre-tightening; step 2: supporting the cable at the bottom; and step 3: limiting the pre-tightening degree; and 4, step 4: and positioning the position of the main cable. When adopting this technical scheme, be convenient for fix the cable fast.
Description
Technical Field
The invention relates to the field of suspension bridge tight cables, in particular to a self-anchored suspension bridge main cable tight cable pre-tightening device and a self-anchored suspension bridge main cable tight cable pre-tightening method.
Background
The catwalk is a linear temporary construction aerial platform which is arranged below the main cable of the suspension bridge and parallel to the main cable, so that construction tasks such as installation of the main cable and the like can be conveniently completed by constructors on the catwalk.
The main cable is formed by combining a plurality of strands of cables, and after the cables are pulled, the cables need to be held and locked by a hoop manually, so that the plurality of strands of cables are combined to form the main cable.
However, the cable is scattered after being pulled, so that the efficiency is low when the cable is manually fixed, and the construction progress can be directly influenced.
Disclosure of Invention
The invention aims to provide a pre-tightening device which is convenient to fix a cable quickly.
In order to achieve the purpose, the technical scheme of the invention provides a self-anchored suspension bridge main cable tightening device which comprises a plurality of tightening mechanisms, wherein each tightening mechanism comprises a first tightening rope and a second tightening rope, one end of the first tightening rope is fixedly connected with a catwalk, and one end of the second tightening rope is detachably connected with the catwalk; the other end of first pretension rope is equipped with the draw-in groove, and the lateral wall of the first pretension rope other end be equipped with the logical groove of draw-in groove intercommunication, lead to the groove department and rotate and be connected with the arc, the other end of second pretension rope can insert in the slot, and the one end of arc can with the other end chucking of second pretension rope, the middle part of second pretension rope can offset with the other end of arc.
The technical effect of the scheme is as follows: after a plurality of cables forming the main cable are pulled and finished, the other end of the second pre-tightening rope is inserted into the slot at the other end of the first pre-tightening rope after bypassing the cables, then the second pre-tightening rope is pulled, the middle of the second pre-tightening rope is abutted to the other end of the arc plate and enables the arc plate to rotate, and the arc plate is abutted to the other end of the second pre-tightening rope, so that the cables are pre-tightened, the cables are prevented from being scattered and distributed, and the binding efficiency of the follow-up cables is improved.
At the in-process of pretension cable, the arc can support the cable of bottom to ensure that a plurality of cables are tentatively tied, be convenient for directly embolia the staple bolt and lock at the in-process of binding cable one-tenth main push-towing rope, need not to arrange in order the cable, be favorable to improving and bind efficiency.
And the middle part of the second pre-tightening rope in the pre-tightening process can be abutted against the other end of the arc plate, so that the pre-tightening degree is limited, the size and the porosity of the main cable can be unified conveniently after the pre-tightening, and the laying quality of the main cable can be improved.
In addition, the first pre-tightening rope and the second pre-tightening rope are convenient for positioning the position of the main cable, the laying precision of the main cable is improved, and meanwhile, after the main cable is laid, the first pre-tightening rope and the second pre-tightening rope are convenient to detach, and the laying efficiency of the main cable is improved.
Furthermore, the other end of the second pre-tightening rope is in a convex shape, and the width of the other end of the second pre-tightening rope is smaller than that of the slot. The technical effect of the scheme is as follows: the insertion depth of the second pre-tightening rope can be conveniently controlled, and the second pre-tightening rope can be conveniently taken out of the slot.
Further, the other end of the second pre-tightening rope is provided with a bayonet, and one end of the arc-shaped plate can be embedded into the bayonet. The technical effect of the scheme is as follows: is favorable for improving the clamping effect.
Further, the opening angle of the bayonet is larger than 90 degrees. The technical effect of the scheme is as follows: the arc-shaped plate and the clamping block are convenient to separate.
Further, still include chain block, chain block includes lifting hook and chain, installs the pulley on the catwalk, and the pulley can be dismantled with the lifting hook and be connected to the one end of second pretension rope is walked around. The technical effect of the scheme is as follows: facilitating the loosening and tightening of the second pre-tightening rope.
Furthermore, one end of the second pre-tightening rope is connected with a hook, and the hook is detachably connected with the lifting hook. The technical effect of the scheme is as follows: the second pre-tensioning rope and the chain are convenient to connect and detach.
Furthermore, a groove is formed in the side wall of the pulley, and the second pre-tightening rope is located in the groove. The technical effect of the scheme is as follows: the stability of the second pre-tensioning rope is improved.
Furthermore, the arc-shaped plate is attached to one end, abutted against the middle part of the second pre-tightening rope, of the second pre-tightening rope. The technical effect of the scheme is as follows: the arc-shaped plate is prevented from breaking the second pre-tightening rope.
Furthermore, the arc is Y style of calligraphy, and the arc includes first branch and second branch, and first branch is connected with first pretension rope rotation in logical groove department, and the second branch can offset with first pretension rope. The technical effect of the scheme is as follows: after the second branch is abutted to the first pre-tightening rope, the other end of the second pre-tightening rope can be prevented from deforming, so that the withdrawing speed of the second pre-tightening rope is prevented from being influenced, and further the construction speed is prevented from being influenced.
The invention also aims to provide a method for pre-tightening a main cable of a self-anchored suspension bridge, which comprises the following steps:
step 1: after the plurality of cables are pulled, the other end of the second pre-tightening rope is inserted into the slot at the other end of the first pre-tightening rope after bypassing the cables, then the second pre-tightening rope is pulled, the middle part of the second pre-tightening rope is abutted against the other end of the arc-shaped plate and the arc-shaped plate is driven to rotate, so that the arc-shaped plate is abutted against the other end of the second pre-tightening rope, and the plurality of cables are pre-tightened;
step 2: in the process of pre-tightening the cable in the step 1, the arc-shaped plate can support the cable at the bottom;
and step 3: in the process of pre-tightening the cable in the step 1, after the middle part of the second pre-tightening rope is abutted against the other end of the arc-shaped plate, the pre-tightening degree is limited;
and 4, step 4: in the process of pre-tightening the cable in the step 1, the first pre-tightening rope and the second pre-tightening rope can position the position of the main cable; after the main cable is laid, the second pre-tightening rope is pulled out of the first pre-tightening rope.
Drawings
FIG. 1 is a schematic front half-section view of an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: chain block 1, chain 2, lifting hook 3, breach 4, pulley 5, first tight rope 6 in advance, tight rope 7 in advance of second, couple 8, draw-in groove 9, logical groove 10, arc 11, bayonet 12, cable 13, first branch 14, second branch 15, catwalk 16.
The first embodiment is as follows:
the first embodiment is basically as shown in the attached figures 1 and 2: the self-anchored suspension bridge main cable tightening pre-tightening device shown in fig. 1 comprises a plurality of pre-tightening mechanisms and a chain block 1. Hsz types can be selected to chain block 1, and chain block 1 includes chain 2 and two lifting hooks 3, and the welding of lifting hook 3 has breach 4 at the both ends of chain 2, opens on catwalk 16, and in breach 4 can be gone into to left lifting hook 3, still rotate on the catwalk 16 and install pulley 5.
Every pretension mechanism all includes that the first tight rope 6 in advance is tight rope 7 with the second in advance, and the right-hand member of the first tight rope 6 in advance welds with catwalk 16, and the left end welding of the tight rope 7 of second in advance has couple 8, and the left end of the tight rope 7 of second is in advance around pulley 5 after couple 8 can dismantle with lifting hook 3 and be connected.
As shown in fig. 2, a clamping groove 9 is formed at the left end of the first pre-tightening rope 6, a through groove 10 is formed in the side wall of the left end of the first pre-tightening rope 6, the through groove 10 is communicated with the clamping groove 9, and an arc plate 11 is rotatably connected to the through groove 10 through a pin shaft; the right-hand member of the second pretension rope 7 is type of protruding, and the right-hand member of the second pretension rope 7 can insert the slot after bypassing cable 13, and the width of the right-hand member of the second pretension rope 7 is less than the width of the slot, and the right-hand member of the second pretension rope 7 is opened there is bayonet 12, and the opening angle of bayonet 12 is 120, and in the left end of arc 11 can imbed bayonet 12, the middle part of the second pretension rope 7 can offset with the right-hand member of arc 11.
The method for pre-tightening the main cable of the self-anchored suspension bridge comprises the following steps:
step 1: as shown in fig. 1, after the cables 13 forming the main cable are pulled, the right end of the second pre-tightening rope 7 is inserted into the slot at the left end of the first pre-tightening rope 6 after passing around the cables 13, and then the chain 2 is pulled to drive the second pre-tightening rope 7 to tighten; the middle part of the second pre-tightening rope 7 is abutted to the right end of the arc plate 11 and the arc plate 11 is enabled to rotate anticlockwise as shown in fig. 2, so that the left end of the arc plate 11 is abutted to the bayonet 12 at the right end of the second pre-tightening rope 7, and a plurality of cables 13 are pre-tightened, so that the cables 13 are prevented from being distributed randomly, and the binding efficiency of the subsequent cables 13 is improved.
Step 2: in the process of pre-tightening the cable 13, the arc-shaped plate 11 can support the cable 13 at the bottom, so that a plurality of cables 13 are ensured to be initially bundled, the hoop is convenient to directly sleeve into the anchor ear to be locked in the process of binding the cable 13 into the main cable, the cable 13 does not need to be sorted, and the binding efficiency is favorably improved.
And step 3: the middle part of the second pre-tightening rope 7 in the pre-tightening process can be abutted against the right end of the arc plate 11, so that the pre-tightening degree is limited, too loose or too tight binding is avoided, the size and the porosity of the main cable can be unified conveniently after the pre-tightening, and the laying quality of the main cable can be improved.
And 4, step 4: in the process of pre-tightening the cable 13 in the step 1, the first pre-tightening rope 6 and the second pre-tightening rope 7 are convenient for positioning the main cable, namely the first pre-tightening rope 6, the second pre-tightening rope 7 and the catwalk 16 form a triangle in fig. 1, the main cables at the positions of the first pre-tightening rope 6 and the second pre-tightening rope 7 are consistent after pre-tightening, and the laying precision of the main cable is improved; simultaneously main cable is laid and is accomplished the back, and the manual work is installed the staple bolt after on main cable promptly, makes couple 8 and lifting hook 3 separation, and the second is tight rope 7 in advance relaxs the back, and artifical clockwise rotation is as shown in fig. 2 arc 11, and the left end of arc 11 is separated with bayonet 12 after, is convenient for extract second tight rope 7 in advance from first tight rope 6 in advance, is convenient for promptly demolish preloading device to be favorable to improving the laying efficiency of main cable.
Example two:
as shown in fig. 2, the arc 11 is Y-shaped, the right end of the arc 11 is attached to the middle of the second pre-tightening rope 7, the left end of the arc 11 comprises a first branch 14 and a second branch 15, the first branch 14 is rotatably connected with the first pre-tightening rope 6 through a pin shaft at the through groove 10, and the second branch 15 can be abutted to the first pre-tightening rope 6. In addition, the side wall of the pulley 5 shown in fig. 1 is provided with a groove, and the second pre-tightening rope 7 is positioned in the groove.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (10)
1. From tight cable preloading device of anchor formula suspension bridge main push-towing rope, its characterized in that: the device comprises a plurality of pre-tightening mechanisms, wherein each pre-tightening mechanism comprises a first pre-tightening rope and a second pre-tightening rope, one end of the first pre-tightening rope is fixedly connected with a catwalk, and one end of the second pre-tightening rope is detachably connected with the catwalk; the other end of first pretension rope is equipped with the draw-in groove, and the lateral wall of the first pretension rope other end be equipped with the logical groove of draw-in groove intercommunication, lead to the groove department and rotate and be connected with the arc, the other end of second pretension rope can insert in the slot, and the one end of arc can with the other end chucking of second pretension rope, the middle part of second pretension rope can offset with the other end of arc.
2. The self-anchored suspension bridge main cable pre-tensioning device according to claim 1, wherein: the other end of the second pre-tightening rope is in a convex shape, and the width of the other end of the second pre-tightening rope is smaller than that of the slot.
3. The self-anchored suspension bridge main cable pre-tensioning device according to claim 2, wherein: the other end of the second pre-tightening rope is provided with a bayonet, and one end of the arc-shaped plate can be embedded into the bayonet.
4. The self-anchored suspension bridge main cable pre-tensioning device according to claim 3, wherein: the opening angle of the bayonet is larger than 90 degrees.
5. The self-anchored suspension bridge main cable pre-tensioning device according to claim 4, wherein: still include chain block, chain block includes lifting hook and chain, installs the pulley on the catwalk, and the pulley can be dismantled with the lifting hook and be connected to the one end of tight rope in advance of second is walked around.
6. The self-anchored suspension bridge main cable pre-tensioning device according to claim 5, wherein: one end of the second pre-tightening rope is connected with a hook which is detachably connected with the lifting hook.
7. The self-anchored suspension bridge main cable pre-tensioning device according to claim 6, wherein: the lateral wall of pulley is equipped with the recess, and second pretension rope is located the recess.
8. The self-anchored suspension bridge main cable pre-tensioning device according to claim 7, wherein: the arc-shaped plate is attached to one end, abutted against the middle part of the second pre-tightening rope, of the second pre-tightening rope.
9. The self-anchored suspension bridge main cable pre-tensioning device according to claim 8, wherein: the arc is Y style of calligraphy, and the arc includes first branch and second branch, and first branch is connected with first pretension rope rotation in logical groove department, and the second branch can be balanced against with first pretension rope.
10. The method for pre-tensioning the main cable of the self-anchored suspension bridge according to any one of claims 6 or 9, wherein: the method comprises the following steps:
step 1: after the plurality of cables are pulled, the other end of the second pre-tightening rope is inserted into the slot at the other end of the first pre-tightening rope after bypassing the cables, then the second pre-tightening rope is pulled, the middle part of the second pre-tightening rope is abutted against the other end of the arc-shaped plate and the arc-shaped plate is driven to rotate, so that the arc-shaped plate is abutted against the other end of the second pre-tightening rope, and the plurality of cables are pre-tightened;
step 2: in the process of pre-tightening the cable in the step 1, the arc-shaped plate can support the cable at the bottom;
and step 3: in the process of pre-tightening the cable in the step 1, after the middle part of the second pre-tightening rope is abutted against the other end of the arc-shaped plate, the pre-tightening degree is limited;
and 4, step 4: in the process of pre-tightening the cable in the step 1, the first pre-tightening rope and the second pre-tightening rope can position the position of the main cable; after the main cable is laid, the second pre-tightening rope is pulled out of the first pre-tightening rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008755.8A CN112144410B (en) | 2020-09-23 | 2020-09-23 | Self-anchored suspension bridge main cable tightening device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011008755.8A CN112144410B (en) | 2020-09-23 | 2020-09-23 | Self-anchored suspension bridge main cable tightening device and method |
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| Publication Number | Publication Date |
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| CN112144410A true CN112144410A (en) | 2020-12-29 |
| CN112144410B CN112144410B (en) | 2022-05-20 |
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| CN202011008755.8A Active CN112144410B (en) | 2020-09-23 | 2020-09-23 | Self-anchored suspension bridge main cable tightening device and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508371A (en) * | 2002-12-18 | 2004-06-30 | ���ʸ���ϣ����˹���չ�˾ | Method for setting cable |
| KR20080093004A (en) * | 2007-04-14 | 2008-10-17 | 디비닥-시스템스 인터나시오날 게엠베하 | Tension member for structure and manufacturing method thereof |
| CN204125839U (en) * | 2014-10-22 | 2015-01-28 | 中建八局第三建设有限公司 | A kind of tight cable device for the construction of suspension bridge tight cable |
| CN206157573U (en) * | 2016-10-27 | 2017-05-10 | 武汉市法尔胜路桥建设工程有限公司 | Quick pretension cable device of main rope |
| CN207998017U (en) * | 2018-03-29 | 2018-10-23 | 安徽宏峰包装材料有限公司 | A kind of package component and cable mechanism |
| CN109747882A (en) * | 2019-01-02 | 2019-05-14 | 青建国际集团有限公司 | A kind of binding reinforcing bars gathering device |
-
2020
- 2020-09-23 CN CN202011008755.8A patent/CN112144410B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1508371A (en) * | 2002-12-18 | 2004-06-30 | ���ʸ���ϣ����˹���չ�˾ | Method for setting cable |
| KR20080093004A (en) * | 2007-04-14 | 2008-10-17 | 디비닥-시스템스 인터나시오날 게엠베하 | Tension member for structure and manufacturing method thereof |
| CN204125839U (en) * | 2014-10-22 | 2015-01-28 | 中建八局第三建设有限公司 | A kind of tight cable device for the construction of suspension bridge tight cable |
| CN206157573U (en) * | 2016-10-27 | 2017-05-10 | 武汉市法尔胜路桥建设工程有限公司 | Quick pretension cable device of main rope |
| CN207998017U (en) * | 2018-03-29 | 2018-10-23 | 安徽宏峰包装材料有限公司 | A kind of package component and cable mechanism |
| CN109747882A (en) * | 2019-01-02 | 2019-05-14 | 青建国际集团有限公司 | A kind of binding reinforcing bars gathering device |
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| Publication number | Publication date |
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| CN112144410B (en) | 2022-05-20 |
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