CN120311610A - Parallel steel wire cable tension and compression combined traction device for cable-stayed bridge - Google Patents
Parallel steel wire cable tension and compression combined traction device for cable-stayed bridgeInfo
- Publication number
- CN120311610A CN120311610A CN202510798743.6A CN202510798743A CN120311610A CN 120311610 A CN120311610 A CN 120311610A CN 202510798743 A CN202510798743 A CN 202510798743A CN 120311610 A CN120311610 A CN 120311610A
- Authority
- CN
- China
- Prior art keywords
- support plate
- correction
- plate
- cable
- anchor
- 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.)
- Pending
Links
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
- 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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
- E01D2101/32—Metal prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明公开了斜拉索牵引施工技术领域的斜拉桥用平行钢丝斜拉索拉压组合牵引装置，包括多组呈圆周阵列布置的矫正机构；多个所述矫正机构通过连接件活动连接；所述矫正机构包括支撑板；安装块，与支撑板在竖直方向上滑动连接；矫正板，与安装块转动连接，且转动轴上套装有用于其复位的扭簧一；定位辊，转动安装于支撑板内侧；驱动单元，设置于支撑板上且用于驱动矫正板插入锚具锚孔内，从而调整支撑板位置，使定位辊与锚具夹片孔相切；锁止单元，活动安装于支撑板上，所述锁止单元能够在支撑板位置调整矫正完成后使支撑板与锚具相对固定；本发明能够使钢绞线张拉完成后夹片更顺畅的压入锚孔内。
The present invention discloses a combined pulling and compressing pulling device for parallel steel wire cables for cable-stayed bridges in the technical field of cable-stayed cable traction construction, comprising a plurality of correction mechanisms arranged in a circular array; a plurality of the correction mechanisms are movably connected via connecting pieces; the correction mechanism comprises a support plate; a mounting block, which is slidably connected to the support plate in a vertical direction; a correction plate, which is rotatably connected to the mounting block, and a torsion spring for resetting the correction plate is mounted on the rotating shaft; a positioning roller, which is rotatably mounted on the inner side of the support plate; a driving unit, which is arranged on the support plate and is used to drive the correction plate to be inserted into the anchor hole of the anchor, thereby adjusting the position of the support plate so that the positioning roller is tangent to the anchor clip hole; a locking unit, which is movably mounted on the support plate, and the locking unit can relatively fix the support plate and the anchor after the position adjustment and correction of the support plate is completed; the present invention can make the clip more smoothly pressed into the anchor hole after the steel strand is tensioned.
Description
Technical Field
The invention relates to the technical field of stay cable traction construction, in particular to a parallel steel wire cable-stayed cable tension and compression combined traction device for a cable-stayed bridge.
Background
In the process of installing a stayed cable of a cable-stayed bridge, after the steel strand passes through an anchorage device, the steel strand needs to be prestressed and tensioned by a tensioning jack and then pressed into an anchorage device anchor hole to fix the steel strand, as shown in an attached drawing 1 of the specification, in an ideal state, a through hole on a support for installing and supporting the tensioning jack and the anchorage device anchor hole are in a coaxial state, the tensioning jack can tension the steel strand in a c2 track when tensioning the steel strand, in the actual operation process, the support for installing and supporting the tensioning jack and the anchorage device anchor are in threaded connection, after the support and the anchorage device are locked, the coaxial state of the axis of the through hole on the support and the axis of the anchorage device anchor hole is difficult to ensure, an axial distance L exists between the support and the anchorage device, the actual processing error of the support and the anchorage device can further increase the axial distance L, when the tensioning jack performs tensioning work of the steel strand, the steel strand is in a c1 direction, the pressure applied to the right clamping piece is greatly increased, the pressure of the left clamping piece is greatly reduced, the difficulty of pressing the left clamping piece into the anchorage hole is greatly, the clamping piece on the left clamping piece is pressed into the anchorage hole is greatly, and the clamping effect of the left clamping piece is difficult to be pressed in the flat state when the clamping the left clamping piece is greatly pressed.
Disclosure of Invention
The invention aims to provide a parallel steel wire cable-stayed cable combined traction device for a cable-stayed bridge, so as to solve the problems in the background technology.
The parallel steel wire cable-stayed compression combined traction device for the cable-stayed bridge comprises a plurality of groups of correction mechanisms which are arranged in a circumferential array, wherein the correction mechanisms are movably connected through connecting pieces, the correction mechanisms comprise support plates, mounting blocks which are in sliding connection with the support plates in the vertical direction, correction plates which are rotatably connected with the mounting blocks, torsion springs I for resetting the correction plates are sleeved on rotating shafts, positioning rollers which are rotatably arranged on the inner sides of the support plates, driving units which are arranged on the support plates and are used for driving the correction plates to be inserted into anchor holes, so that the positions of the support plates are adjusted, the positioning rollers are tangent to the anchor clamping holes, and locking units which are movably arranged on the support plates can enable the support plates to be relatively fixed with the anchors after the position adjustment and correction of the support plates are completed.
The driving unit comprises a sucker, a piston, a pressing plate, an electric telescopic cylinder, a switching valve and a control valve, wherein the sucker is in sliding connection with the supporting plate in the vertical direction, the piston is in sliding connection with the sucker, the pressing plate is fixedly arranged at the top of the piston, the fixed end of the electric telescopic cylinder is fixedly connected with the supporting plate, the output end of the electric telescopic cylinder is fixedly connected with the pressing plate, and the switching valve is arranged on the side wall of the sucker and used for controlling the piston to exhaust.
As a further scheme of the invention, the switch valve comprises a sealing block, a push rod and a bottom end, wherein the sealing block is elastically connected with the sucker in a sliding manner, the push rod is inclined, the top end of the push rod is hinged with the sealing block, and the bottom end of the push rod is positioned below the sucker.
The locking unit comprises a first spring, a wedge-shaped pressing block, a wedge-shaped push rod and a pressing plate, wherein the first spring is fixed with the mounting block and used for resetting the mounting block, the wedge-shaped pressing block is elastically and slidably arranged on the top of the sucker and can drive the mounting block to move downwards along with the sucker, and the wedge-shaped push rod is fixedly connected with the pressing plate and is located right above the wedge-shaped pressing block.
As a further scheme of the invention, a limiting block is fixedly connected to the rotating shaft of the correcting plate, a limiting groove is formed in the mounting block, and the limiting block is in sliding fit with the limiting groove.
As a further scheme of the invention, a support is rotatably connected to the support plate, a torsion spring II for resetting the support is sleeved on a rotating shaft of the support, a guide roller is rotatably arranged on the support, and the guide roller is positioned above the positioning roller.
As a further scheme of the invention, the supporting plate is connected with a compression bar in a sliding manner in the vertical direction, a spring II is fixedly connected to the compression bar, the top end of the spring II is fixedly connected with the supporting plate, a steel rope is fixedly connected to the compression bar, one end of the steel rope, which is far away from the compression bar, penetrates through the supporting plate and is fixedly connected with a sliding block, the sliding block is connected with the supporting plate in a sliding manner in the vertical direction, a drag hook capable of driving the sliding block to move downwards is arranged on the side edge of the sliding block, the drag hook is connected with the pressing plate in a rotating manner, a gear is connected to a rotating shaft of the drag hook through a one-way bearing, and a rack is fixedly connected to the top of the sucker and can be meshed with the gear.
As a further scheme of the invention, the connecting piece comprises a plurality of fixing sleeves and a plurality of sliding rods, the number of the fixing sleeves and the sliding tubes is the same as that of the supporting plates, the fixing sleeves are fixedly connected with the supporting plates, and the sliding rods are movably connected with the fixing sleeves.
As a further aspect of the present invention, the support plate is provided in an arc shape.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, through the arrangement of the correction mechanism, the steel strands positioned at the lower section of the positioning roller can be ensured to be in a parallel state with the anchor holes in the tensioning process of the steel strands, so that the pressing-in process of the clamping pieces can be smoother after the subsequent tensioning of the steel strands is completed, the top ends of the two clamping pieces can be ensured to be kept flat, and the clamping effect on the steel strands can be more stable.
Drawings
FIG. 1 is a diagram illustrating the background of the invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view of the support plate and its upper structure according to the present invention;
FIG. 4 is a schematic cross-sectional view of the locking unit of the present invention;
FIG. 5 is a schematic cross-sectional view of the drive unit of the present invention;
FIG. 6 is a schematic diagram of a compression bar and related structure according to the present invention;
FIG. 7 is a schematic cross-sectional view of a connector according to the present invention;
FIG. 8 is a schematic view of the operation of the connector of the present invention;
FIG. 9 is a schematic view of the tensioning jack of the present invention in an operational state;
fig. 10 is a schematic view of the overall operation state of the present invention.
The reference numerals are as follows:
1-backup pad, 2-correction board, 3-installation piece, 4-locating roll, 5-guide roll, 6-locking unit 6, 7-sucking disc, 8-piston, 9-clamp plate, 10-electric telescopic cylinder, 11-sealing block, 12-ejector pin, 13-spring one, 14-wedge briquetting, 15-wedge push rod, 16-stopper, 17-spacing groove, 18-depression bar, 19-spring two, 20-steel cable, 21-drag hook, 22-slider, 23-gear, 24-rack, 25-connecting piece, 26-fixed sleeve, 27-slide bar, 28-tensioning jack, 29-support, 30-driving unit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, a represents an anchor, b represents a jack support, c represents a steel strand, d represents a clamping piece, the invention provides a technical scheme that a parallel steel wire cable-stayed combined traction device for a cable bridge comprises a tensioning jack 28 and a plurality of groups of correction mechanisms which are arranged in a circumferential array, the correction mechanisms are movably connected through connecting pieces 25, each correction mechanism comprises a support plate 1, a correction plate 2, a mounting block 3, a positioning roller 4, a driving unit 30 and a locking unit 6, the mounting block 3 is in sliding connection with the support plate 1 in the vertical direction, the correction plate 2 is rotatably connected with the mounting block 3, a torsion spring I for resetting the correction plate is sleeved on a rotating shaft, the positioning roller 4 is rotatably arranged on the inner side of the support plate 1, the driving unit 30 is arranged on the support plate 1 and is used for driving the correction plate 2 to be inserted into an anchor hole of the anchor, so that the position of the support plate 1 is adjusted, the positioning roller 4 is tangential to the anchor clamping hole of the anchor, the locking unit 6 is movably arranged on the support plate 1, and the locking unit 6 can enable the support plate 1 and the anchor to be relatively fixed with the support plate 1 after the position adjustment of the support plate 1 is completed.
In the embodiment, three groups of correction mechanisms are arranged, after the steel strands pass through the anchor holes and are pre-fixed through the clamping pieces, the three groups of correction mechanisms are arranged between the anchor and the jack support, so that the steel strands are positioned at the inner sides of the multiple groups of correction mechanisms, and then the three groups of correction mechanisms are relatively fixed through the connecting piece 25; installing a tensioning jack 28 on the jack support, enabling the top ends of the steel strands to penetrate through the tensioning jack 28, and then tensioning the steel strands by the tensioning jack 28; as shown in fig. 10, when the steel strand is tensioned, the clamping piece is positioned in the anchor hole, the top end of the steel strand moves upwards, the clamping piece moves upwards along with the steel strand synchronously, when the clamping piece rises, if the correction plate 2 is positioned in the path of the clamping piece, the clamping piece forces the correction plate 2 to rotate towards the supporting plate 1 through contact, the correction plate 2 is prevented from being blocked by the clamping piece from moving upwards, after the clamping piece moves out of the anchor hole, the tensioning jack 28 pauses operation, the steel strand is not fully tensioned, the top end is clamped by the tensioning jack 28, the locking unit 6 moves downwards, meanwhile, the driving unit 30 drives the mounting block 3 and the correction plate 2 to move downwards, the bottom end of the correction plate 2 is driven by the inner wall of the anchor hole to rotate until the inner wall of the correction plate 2 is completely attached to the inner wall of the anchor hole after the correction plate 2 enters the anchor hole, the correction plate 2 rotates to the limit position to be relatively fixed with the mounting block 3, then the inner wall of the correction plate 2 drives the supporting plate 1 to move downwards to the side close to the axis of the anchor hole, when the correction plate 2 moves downwards to the limit position, three supporting plates 1 are arranged in a circumferential array about the anchor hole center, three positioning rollers 4 are also arranged in a circumferential array about the anchor hole center, the three positioning rollers 4 are arranged in a radial circumferential array form, the clamping piece is fixed in the anchor hole, the supporting plate 1 is fixed with the anchor device in a relative mode through the locking unit 6, the driving unit 30 drives the correcting plate 2 and the mounting block 3 to move upwards to withdraw from the anchor hole and return to an initial position, the fact that the clamping piece is blocked by the correcting plate 2 to be inserted into the anchor hole after the subsequent steel strands are stretched is avoided, then the tensioning jack 28 works again, the steel strands below the three positioning rollers 4 are always kept parallel to the anchor hole under the action of the three positioning rollers 4, after the steel strands are stretched, constructors can push the clamping piece into the anchor hole, the clamping piece can be smoothly pressed in due to the fact that the steel strands are parallel to the anchor hole, the clamping effect of the clamping piece on the two clamping pieces can be kept smooth, the clamping effect on the steel strands can be stable, the tensioning jack 28 loosens the steel strands, the clamping piece is driven to tighten and fix the steel strands in the retraction process of the steel strands, after the steel strands are stretched, the connecting piece 25 connected with the correcting mechanism is detached, and the correcting mechanism is required to be removed, the supporting plate 1 can be set to be equal to or slightly smaller than the distance between the supporting plate and the supporting plate 1 and the correcting mechanism can be prevented from being inclined after the supporting plate is mounted.
Specifically, as shown in fig. 4, the locking unit 6 comprises a sucker 7, a piston 8, a pressing plate 9, an electric telescopic cylinder 10 and a switching valve, wherein the sucker 7 is in sliding connection with the supporting plate 1 in the vertical direction, the piston 8 is in sliding connection with the sucker 7, the pressing plate 9 is fixedly arranged at the top of the piston 8, the fixed end of the electric telescopic cylinder 10 is fixedly connected with the supporting plate 1, the output end of the electric telescopic cylinder is fixedly connected with the pressing plate 9, and the switching valve is arranged on the side wall of the sucker 7 and used for controlling the exhaust of the piston 8.
When the locking unit 6 works, the electric telescopic cylinder 10 drives the pressing plate 9 to move downwards, the pressing plate 9 drives the piston 8 to move downwards synchronously, and the piston 8 drives the sucking disc 7 to move downwards synchronously because the switch valve is in a closed state at the moment and the air in the sucking disc 7 is sealed, and the piston 8 and the sucking disc 7 are in a relatively fixed state; until the sucker 7 moves downwards to be attached to the anchor, at the moment, the switch valve is opened, the piston 8 moves downwards relative to the sucker 7, as shown in fig. 4, the shadow part is a cavity communicated with the bottom inside the sucker 7, when the piston 8 moves downwards, the cavity communicated with the bottom inside the sucker 7 increases in volume, negative pressure is formed inside the cavity, the sucker 7 is tightly adsorbed to the top surface of the anchor due to the negative pressure, under the action of the sucker 7, the supporting plate 1 and the anchor are in a relatively fixed state, when the tensioning work of the steel strands is finished, the locking unit 6 needs to cancel the fixation of the supporting plate 1, the electric telescopic cylinder 10 drives the pressing plate 9 and the piston 8 to move upwards to an initial position, the adsorption force of the sucker 7 disappears, then the piston 8 can drive the sucker 7 to move upwards, and as the supporting plate 1 needs to adjust the position of the supporting plate 1 after the supporting plate 1 is installed between the anchor and the jack support, as shown in fig. 2, the bottom surface of the supporting plate 1 is positioned above the bottom surface of the supporting plate 1, the bottom surface of the sucker 7 is always higher than the top surface of the anchor to avoid the friction of the sucker 7 from being damaged by translation, and the top surface of the supporting plate 7 can contact with the anchor after the position adjustment of the supporting plate 1 is completed.
Specifically, as shown in fig. 4, the switch valve comprises a sealing block 11 and a push rod 12, wherein the sealing block 11 is elastically and slidably connected with the sucker 7, the push rod 12 is inclined, the top end of the push rod is hinged with the sealing block 11, and the bottom end of the push rod is positioned below the sucker 7.
The sucker 7 moves downwards to drive the ejector rod 12 to synchronously move downwards, the bottom end of the ejector rod 12 is firstly contacted with the top surface of the anchorage device, after the ejector rod 12 is contacted with the top end of the anchorage device, the sealing block 11 is ejected by the ejector rod 12, when the sucker 7 is completely attached to the top surface of the anchorage device, the piston 8 continuously moves downwards, the volume of the cavity in the sucker 7 is increased to generate negative pressure, thereby realizing adsorption fixation, the piston 8 moves downwards at the initial stage through the arrangement of a switching valve, the switching valve is in a closed state because the sealing block 11 is not ejected, the piston 8 moves downwards synchronously with the sucker 7, after the sealing block 11 is ejected by the ejector rod 12, the switching valve is opened, the piston 8 moves downwards relative to the sucker 7, and negative pressure is formed in the sucker 7.
Specifically, as shown in fig. 5, the driving unit 30 includes a first spring 13, a wedge-shaped pressing block 14 and a wedge-shaped pushing rod 15, wherein the first spring 13 is fixed with the mounting block 3 and is used for resetting the mounting block 3, the wedge-shaped pressing block 14 is elastically and slidably mounted on the top of the suction cup 7 and can drive the mounting block 3 to move downwards along with the suction cup 7, and the wedge-shaped pushing rod 15 is fixedly connected with the pressing plate 9 and is located right above the wedge-shaped pressing block 14.
When the sucker 7 moves downwards, the wedge-shaped pressing block 14 drives the installation block 3 to synchronously move downwards, the installation block 3 drives one end of the spring I13 to synchronously move downwards, the spring I13 stretches, when the sucker 7 moves downwards to be in contact with the top surface of an anchor (namely, the position of the supporting plate 1 is adjusted), the pressing plate 9 drives the piston 8 to move downwards relative to the sucker 7, the pressing plate 9 drives the wedge-shaped pushing rod 15 to synchronously move downwards, when the piston 8 moves downwards to the lowest point, the wedge-shaped pushing rod 15 drives the wedge-shaped pressing block 14 to move outwards through the wedge-shaped surface, the wedge-shaped pressing block 14 and the installation block 3 are misplaced, then the installation block 3 and the correction plate 2 can move upwards under the elastic force of the spring I13 to return to the initial position, the clamping piece is conveniently pressed into the anchor hole after the subsequent steel strand tensioning is finished, and the installation of the driving unit 30 can ensure that the installation block 3 and the correction plate 2 can move upwards to return to the initial position after the supporting plate 1 is completely fixed with the anchor.
Specifically, as shown in fig. 5, a limiting block 16 is fixedly connected to a rotating shaft of the correction plate 2, a limiting groove 17 is formed in the mounting block 3, the limiting block 16 is in sliding fit with the limiting groove 17, the correction plate 2 can only rotate within a certain range through the arrangement of the limiting block 16 and the limiting groove 17, and an angle formed by the correction plate 2 and the support plate 1 when the correction plate 2 rotates anticlockwise to the maximum angle is equal to an anchor hole angle.
Specifically, as shown in fig. 1, a support 29 is rotatably connected to the support plate 1, a torsion spring II for resetting the support 29 is sleeved on a rotating shaft of the support 29, a guide roller 5 is rotatably installed on the support 29, the guide roller 5 is located above the positioning roller 4, the positioning roller 4 and the support plate 1 are required to be relatively fixed to ensure that a Duan Gang stranded wire below the positioning roller 4 is parallel to an anchor hole, the pressure on the positioning roller 4 is high in the tensioning process of the stranded wire, most of the pressure in the tensioning process of the stranded wire can be borne by the guide roller 5 through the arrangement of the support 29 and the guide roller 5, the guide roller 5 is released through the buffer action of the torsion spring II, and the positioning roller 4 can work more stably.
Specifically, as shown in fig. 2,3, 6 and 10, the supporting plate 1 is slidably connected with a pressing rod 18 in the vertical direction, a second spring 19 is fixedly connected to the pressing rod 18, the top end of the second spring 19 is fixedly connected with the supporting plate 1, a steel rope 20 is fixedly connected to the pressing rod 18, one end, far away from the pressing rod 18, of the steel rope 20 penetrates through the supporting plate 1 and is fixedly connected with a sliding block 22, the sliding block 22 is slidably connected with the supporting plate 1 in the vertical direction, a drag hook 21 capable of driving the drag hook 22 to move downwards is arranged on the side edge of the sliding block 22, the drag hook 21 is rotationally connected with the pressing plate 9, a gear 23 is connected to the rotating shaft of the drag hook 21 through a one-way bearing, a rack 24 is fixedly connected to the top of the sucker 7, and the rack 24 can be meshed with the gear 23.
When the pressing plate 9 moves downwards, the sliding block 22 is driven by the drag hook 21 to synchronously move downwards, one end of the steel rope 20 is driven by the sliding block 22 to move downwards, the other end of the steel rope 20 is driven by the pressing rod 18 to move upwards, the second spring 19 is compressed in the process of moving upwards, through the arrangement of the one-way bearing, when the pressing plate 9 moves downwards relative to the chuck 7, the rack 24 drives the gear 23 to rotate, the gear 23 does not act on the drag hook 21, when the stretching of the steel strand is finished, the stretching jack 28 temporarily does not release the steel strand, the electric telescopic cylinder 10 drives the pressing plate 9 to move upwards, the drag hook 21 and the gear 23 are driven by the pressing plate 9 to synchronously move upwards, at the moment, the rack 24 drives the gear 23 and the drag hook 21 to rotate clockwise in the state shown in fig. 6, after the drag hook 21 rotates to be separated from the sliding block 22, the pulling force applied to the pulling rod 18 is small, the pulling rod 18 can move downwards rapidly under the elastic force of the second spring 19, the pulling rod 18 can be pressed into the anchor clamping piece hole, then the steel strand can be released by the stretching jack 28, the anchor is adsorbed by the chuck 7, when the stretching of the steel strand is finished, the steel strand is directly, the correcting mechanism can be removed, and the stretching work of the steel strand can be carried out smoothly.
Specifically, as shown in fig. 7 and 8, the connecting piece 25 comprises a plurality of fixing sleeves 26 and a plurality of sliding rods 27, the number of the fixing sleeves 26 and the sliding tubes 27 is the same as that of the supporting plates 1, the fixing sleeves 26 are fixedly connected with the supporting plates 1, the sliding rods 27 are movably connected with the fixing sleeves 26, in this embodiment, three fixing sleeves 26 and three sliding rods 27 are arranged, two sliding rods 27 are slidably connected with the fixing sleeves 26, the other sliding rod 27 is an independent part and can be inserted into the fixing sleeves 26 on two sides, in fig. 8, the three supporting plates 1 are in an attached state in an initial state, a notch for avoiding a steel strand is formed on the right side, three groups of correcting mechanisms are mounted on the top of the anchor, after the steel strand is positioned on the inner side of the correcting mechanism, the correcting mechanisms on two sides are moved outwards, then the supporting plates 1 on the two sides are relatively fixed through the independent sliding rods 27, and at this time, the three groups of correcting mechanisms form a whole.
Specifically, as shown in fig. 3, the supporting plate 1 is set to be arc-shaped, and because the anchor holes on the anchors are distributed in regular polygons, the supporting plate 1 is set to be arc-shaped, so that the supporting plate 1 can be prevented from shielding the anchor holes, and meanwhile, the contact area between the supporting plate 1 and the top of the anchors is increased.
The above elastic sliding connection (installation) refers to a structure that the parts can automatically reset after sliding, and includes the spring structure shown in the drawings, but is not limited to the spring structure.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510798743.6A CN120311610A (en) | 2025-06-16 | 2025-06-16 | Parallel steel wire cable tension and compression combined traction device for cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510798743.6A CN120311610A (en) | 2025-06-16 | 2025-06-16 | Parallel steel wire cable tension and compression combined traction device for cable-stayed bridge |
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| CN120311610A true CN120311610A (en) | 2025-07-15 |
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| CN202510798743.6A Pending CN120311610A (en) | 2025-06-16 | 2025-06-16 | Parallel steel wire cable tension and compression combined traction device for cable-stayed bridge |
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