CN113356074A - Suspension bridge main cable strand shoe adjusting device and method - Google Patents
Suspension bridge main cable strand shoe adjusting device and method Download PDFInfo
- Publication number
- CN113356074A CN113356074A CN202110719028.0A CN202110719028A CN113356074A CN 113356074 A CN113356074 A CN 113356074A CN 202110719028 A CN202110719028 A CN 202110719028A CN 113356074 A CN113356074 A CN 113356074A
- Authority
- CN
- China
- Prior art keywords
- steel wire
- shoe
- adjusting
- wire rope
- 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.)
- Pending
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 185
- 239000010959 steel Substances 0.000 claims abstract description 185
- 210000000689 upper leg Anatomy 0.000 claims abstract description 64
- 238000004873 anchoring Methods 0.000 claims description 7
- 210000002414 leg Anatomy 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
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
- 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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention belongs to the technical field of suspension bridge main cable construction, and particularly relates to a suspension bridge main cable shoe adjusting device and method. A main cable shoe adjusting device of a suspension bridge comprises a shoe, a shoe positioner arranged on a pull rod on one side of an arc surface of the shoe, a locking nut arranged on a pull rod on one side of a plane of the shoe, a first adjusting assembly arranged in a direction parallel to an axis of the pull rod, and a second adjusting assembly arranged in a direction perpendicular to the axis of the pull rod; the first adjusting assembly comprises a first steel wire rope length adjusting device, a cable scattering saddle, a first steel wire and a steel wire positioning device; the second adjusting component comprises a second steel wire rope length adjusting device and a second steel wire rope. According to the invention, the angle of the thigh shoe is adjusted in advance from two mutually perpendicular directions through the first adjusting component and the second adjusting component, so that the problem that the angle of the thigh shoe is difficult to adjust and even adjust due to overlarge stress on the thigh shoe after the erection of the cable strand is solved, and the operation is simple and convenient.
Description
Technical Field
The invention belongs to the technical field of suspension bridge main cable construction, and particularly relates to a suspension bridge main cable shoe adjusting device and method.
Background
The construction method for erecting the main cable of the suspension bridge is divided into a prefabricated parallel steel wire strand method (PPWS method) and an air spinning method (AS method). The PPWS method is a method for erecting parallel strands made of steel wires in advance through catwalks by using a pulling facility and then binding and plying the strands to form a main cable, and the PPWS method is characterized in that a cable strand is connected to an anchorage by using an anchor head when the main cable is erected; the AS method is a method of weaving strands on a catwalk in advance by drawing steel wires, and then binding and stranding the strands to form a main cable; when the main cable is erected by the AS method, a strand shoe device is adopted, and a strand steel wire is anchored on the strand shoe wound on the anchorage.
The strand boots are used AS main cable strand anchor device when suspension bridge AS method erects, and the strand boots are walked around to the strand wires among the spinning process, and the symmetry falls into the strand boots recess respectively in, for avoiding the different strand boots position that lead to of strand boots both sides steel wire atress to take place to deflect, need adjust the strand boots position before the strand wires are erect. In order to adapt to different angles of the cable strand under stress, the strand shoe is generally designed into a structure capable of adjusting the angle, but the strand shoe needs to be adjusted into the angle adaptive to the main cable strand in advance before the cable strand is erected, so that the difficulty in adjusting when the stress of the subsequent strand shoe is large is avoided. The existing adjustable thigh boots are positioned by the pull rods in the using process, and the thigh boots can be installed at an off-normal position under the action of gravity due to the fact that the pull rods have a certain angle with the vertical direction, so that the stress on two sides of the thigh boots is unbalanced.
Disclosure of Invention
The invention aims to solve the problems that the existing adjustable strand boots are positioned by pull rods in the using process, and the strand boots are unbalanced in stress on two sides of the strand boots due to the fact that the pull rods have a certain angle with the vertical direction and the strand boots are deviated in installation under the action of gravity.
The technical scheme of the invention is as follows: a main cable shoe adjusting device of a suspension bridge comprises a shoe, a shoe positioner arranged on a pull rod on one side of an arc surface of the shoe, a locking nut arranged on a pull rod on one side of a plane of the shoe, a first adjusting assembly arranged in a direction parallel to an axis of the pull rod, and a second adjusting assembly arranged in a direction perpendicular to the axis of the pull rod; the first adjusting assembly comprises a first steel wire rope length adjusting device, a cable scattering saddle, a first steel wire and a steel wire positioning device; the steel wire positioning device is fixedly arranged at the fixed end of the thigh boot, one end of the first steel wire is fixedly connected with the steel wire positioning device, and the other end of the first steel wire is fixedly connected with the catwalk; the second adjusting assembly comprises a second steel wire rope length adjusting device and a second steel wire rope, one end of the second steel wire rope is fixedly connected to the thigh boot, the other end of the second steel wire rope is fixedly connected to a steel wire rope anchoring point, and the steel wire rope anchoring point is located on a supporting leg of the suspension bridge operating platform.
The cable scattering saddle is provided with a positioning block, the cross section of the positioning block is one half of that of the main cable strand, the middle of the upper surface of the positioning block is provided with a positioning groove, and the direction of the positioning groove is parallel to the axial direction of the pull rod.
The positioning groove is a triangular groove.
The first adjusting assembly further comprises a tension scale, and the tension scale is located between the first steel wire rope length adjusting device and the cable scattering saddle.
The steel wire positioning device comprises a steel wire fixing seat and a steel wire hole; the first steel wire penetrates through the steel wire hole and is fixedly connected with the steel wire hole.
First wire rope length adjustment device with second wire rope length adjustment device structure is the same, including first couple, wire rope gyro wheel, second couple, twist grip, the wire rope gyro wheel on the winding have wire rope, the wire rope expansion end with first couple fixed connection, during the use, the steel wire is connected respectively at first couple, second couple, through twist grip drives the wire rope gyro wheel rotates to control wire rope receive and releases and drive the steel wire of connecting on the first couple and carry out length adjustment.
The thigh boot is further provided with an angle adjusting reference hole and a strand slot, the angle adjusting reference hole is located in the center of the arc surface of the thigh boot, and the first steel wire penetrates through the angle adjusting reference hole.
The diameter of angle modulation benchmark hole be 6mm, the diameter of first steel wire is 0.5 mm.
A method for adjusting a main strand shoe of a suspension bridge uses any one of the above devices for adjusting the main strand shoe of the suspension bridge, and comprises the following steps:
s1: pre-mounting a thigh shoe positioner on the pull rod according to the thigh shoe design mounting position, and then mounting the thigh shoe;
s2: the adjusting device for installing the main cable shoe of the suspension bridge comprises a first adjusting assembly arranged in the direction parallel to the axis of the pull rod and a second adjusting assembly arranged in the direction perpendicular to the axis of the pull rod; the method specifically comprises the following steps:
s21: the method comprises the steps that a steel wire positioning device is arranged right below a thigh boot, a first steel wire is anchored on a thigh boot positioner and penetrates through an angle adjusting reference hole in the center of the thigh boot, then a positioning block is used for bypassing a cable saddle, then a tension scale and a first steel wire rope length adjusting device are connected, then the first steel wire is anchored on a catwalk, meanwhile, the first steel wire is tensioned by the first steel wire rope length adjusting device, and the tension scale is checked to avoid breaking the steel wire;
s22: one end of a second steel wire rope is anchored on a supporting leg of the square operating platform, the other end of the second steel wire rope is wound and fixed in a strand groove on the strand boot, and a second steel wire rope length adjusting device is arranged in the middle of the second steel wire rope;
s3: adjusting a main cable strand shoe of the suspension bridge, specifically: aligning an angle adjusting reference hole according to the position of a first steel wire, corresponding the position of a positioning groove in the middle of a positioning block to be the central position of a strand, when the first steel wire passes through the positioning block and is straightened, corresponding to the position close to the central line of the strand, wherein the adjusting standard is that the first steel wire is within 1mm of the central diameter of the angle adjusting reference hole, then adjusting the length of a second steel wire rope through a second steel wire rope length adjusting device, finely adjusting the angle of the strand shoe, positioning the adjusted position of the strand shoe by an adjusting strand shoe positioner, aiming at that the first steel wire passing through the angle adjusting reference hole meets the adjusting standard requirements in two directions, and finally locking and positioning through a locking nut;
s4: and after the strand shoe adjustment is finished, the main cable strand shoe adjusting device of the suspension bridge is detached, so that the next repeated use is facilitated.
The invention has the technical effects that: 1. according to the invention, the angle of the thigh shoe is adjusted in advance from two mutually perpendicular directions through the first adjusting component and the second adjusting component, so that the problem that the angle of the thigh shoe is difficult to adjust even adjust due to overlarge stress on the thigh shoe after the erection of the cable strand is completed is solved. 2. According to the invention, the angle position of the strand shoe is judged according to the position of the steel wire through the angle adjusting reference hole, so that the strand shoe is consistent with the actual stress axis of the strand after being adjusted, the stress condition of the strand is improved, and the stress of the steel wire of the strand is more reasonable. 3. The invention is applied to erecting the strand by the AS method, and the steel wires are erected one by one and arranged on the strand boots, and the angle of the strand boots is adjusted in advance, so that the arrangement of the steel wires is smoother, and the problem of the uneven arrangement of the steel wires when the strand boots are adjusted after being erected is avoided.
The following will be further described with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a main strand shoe adjusting device of a suspension bridge according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a positioning block of a suspension bridge main cable shoe adjusting device according to an embodiment of the invention.
Fig. 3 is a schematic structural view of a steel wire length adjusting device of a suspension bridge main cable shoe adjusting device according to an embodiment of the invention.
Fig. 4 is a schematic top view of a suspension bridge main strand shoe adjusting device a-a according to an embodiment of the present invention.
Reference numerals: 1-catwalk; 2-a first wire rope length adjusting device; 3-weighing by a tensile force; 4-a cable saddle; 5-positioning a block; 6-a first steel wire; 7-thigh boots; 8-a thigh boot locator; 9-a steel wire positioning device; 91-steel wire fixing seat; 92-steel wire hole; 10-a second wire rope length adjusting device; 11-a second wire rope; 12-wire rope anchor points; 13-a locking nut; 14-positioning grooves; 15-a first hook; 16-wire rope rollers; 17-a second hook; 18-rotating the handle; 19-an angle adjustment reference hole; 20-strand groove, 21-pull rod.
Detailed Description
Example 1
In order to solve the problem that the existing adjustable thigh boots are positioned by pull rods in the using process, and because the pull rods have certain angles with the vertical direction, the thigh boots have installation deviation under the action of gravity, and the stress on two sides of the thigh boots is unbalanced, the invention provides the adjusting device for the main thigh boots of the suspension bridge, which is shown in figure 1.
As shown in fig. 1, a suspension bridge main cable anchor shoe adjusting device includes a thigh shoe 7, a thigh shoe positioner 8 installed on a tension rod 21 on one side of the arc surface of the thigh shoe 7, and a lock nut 13 installed on the tension rod 21 on one side of the plane of the thigh shoe 7, and is characterized in that: further comprising: the first adjusting component is arranged in a direction parallel to the axis of the pull rod 21, and the second adjusting component is arranged in a direction perpendicular to the axis of the pull rod 21; the first adjusting component comprises a first steel wire rope length adjusting device 2, a cable scattering saddle 4, a first steel wire 6 and a steel wire positioning device 9; the steel wire positioning device 9 is fixedly arranged at the fixed end of the thigh boot 7, one end of the first steel wire 6 is fixedly connected with the steel wire positioning device 9, and the other end of the first steel wire is fixedly connected with the catwalk 1; the second adjusting assembly comprises a second steel wire rope length adjusting device 10 and a second steel wire rope 11, one end of the second steel wire rope 11 is fixedly connected to the thigh shoe 7, the other end of the second steel wire rope is fixedly connected to a steel wire rope anchoring point 12, and the steel wire rope anchoring point 12 is located on a supporting leg of the suspension bridge operating platform.
In the actual use process, a thigh shoe positioner 8 is pre-installed on the pull rod 21 according to the thigh shoe design installation position, and then a thigh shoe 7 is installed; the adjusting device for installing the main strand shoe of the suspension bridge comprises a first adjusting component arranged in the direction parallel to the axis of the pull rod 21 and a second adjusting component arranged in the direction perpendicular to the axis of the pull rod 21; a steel wire positioning device 9 is arranged under a thigh shoe 7, a first steel wire 6 is anchored on a thigh shoe positioner 8, passes through a positioning block 5, bypasses a cable saddle 4, is connected with a first steel wire rope length adjusting device 2, and is then anchored on a catwalk 1; meanwhile, one end of a second steel wire rope 11 is anchored on a supporting leg of the square operating platform, the other end of the second steel wire rope is wound on the thigh shoe 7, and a second steel wire rope length adjusting device 10 is arranged in the middle of the second steel wire rope 11. According to the invention, the angle of the thigh shoe is adjusted in advance from two mutually perpendicular directions through the first adjusting component and the second adjusting component, the requirements of adjusting standards are met in the two directions, and finally the locking nut 13 is used for locking and positioning, so that the problem that the angle of the thigh shoe is adjusted and even adjusted difficultly due to overlarge stress of the thigh shoe after the erection of the cable strand is avoided, and the operation is simple and convenient.
Example 2
On the basis of embodiment 1, in this embodiment, as shown in fig. 2, preferably, a positioning block 5 is arranged on the cable-spreading saddle 4, the size of the cross section of the positioning block 5 is half of that of the main cable strand, a positioning groove 14 is arranged in the middle of the upper surface of the positioning block 5, and the direction of the positioning groove 14 is parallel to the axial direction of the pull rod 21.
In practical use, the cross section of the positioning block 5 is half of the main cable strand and is used for positioning the first steel wire 6, and when the first steel wire 6 passes through the positioning block 5, the first steel wire is just positioned at the center of the main cable strand.
Example 3
On the basis of the embodiment 1 or 2, in this embodiment, preferably, the positioning groove 14 is a triangular groove.
In the practical use process, the positioning groove 14 is a triangular groove, and the first steel wire 6 is just positioned at the triangular lowest point of the triangular groove when passing through the positioning block 5, so that the first steel wire 6 can be quickly positioned.
Example 4
On the basis of embodiment 1, 2 or 3, in this embodiment, preferably, the first adjusting assembly further includes a tension scale 3, and the tension scale 3 is located between the first cable length adjusting device 2 and the cable saddle 4.
In the actual use process, the tension scale 3 is used for weighing the tension of the first steel wire 6, and the first steel wire 6 is ensured to be straightened and not to be broken.
Example 5
On the basis of embodiment 1 or 4, in this embodiment, preferably, the steel wire positioning device 9 includes a steel wire fixing seat 91 and a steel wire hole 92; the first steel wire 6 passes through the steel wire hole 92 and is fixedly connected with the steel wire hole 92.
In the actual use process, the steel wire positioning device 9 comprises a steel wire fixing seat 91 and a steel wire hole 92; the first steel wire 6 passes through the steel wire hole 92 and is fixedly connected with the steel wire hole 92. The steel wire positioning device 9 is arranged right below the thigh boot 7 and used for anchoring and positioning the first steel wire 6.
Example 6
On the basis of embodiment 1 or 5, in this embodiment, as shown in fig. 3, preferably, the first steel wire rope length adjusting device 2 and the second steel wire rope length adjusting device have the same structure, and include a first hook 15, a steel wire rope roller 16, a second hook 17, and a rotating handle 18, the steel wire rope is wound on the steel wire rope roller 16, the movable end of the steel wire rope is fixedly connected to the first hook 15, when in use, the steel wire is respectively connected to the first hook 15 and the second hook 17, and the rotating handle 18 drives the steel wire rope roller 16 to rotate, so that the steel wire rope is controlled to be wound and unwound to drive the steel wire connected to the first hook 15 to perform length adjustment.
In the actual use process, the steel wire is respectively connected with the first hook 15 and the second hook 17, and the rotating handle 18 drives the steel wire rope idler wheel 16 to rotate, so that the steel wire rope is controlled to be wound and unwound to drive the steel wire connected on the first hook 15 to adjust the length, and further the thigh boot 7 is driven to finely adjust the angle.
Example 7
In addition to the embodiments 1 and 6, in this embodiment, as shown in fig. 4, it is preferable that the thigh shoe 7 is further provided with an angle adjustment reference hole 19 and a strand groove 20, the angle adjustment reference hole 19 is located at the center of the circular arc surface of the thigh shoe 7, and the first wire 6 passes through the angle adjustment reference hole 19.
In the actual use process, the angle adjusting reference hole 19 is aligned according to the position of the first steel wire 6, the position of the middle positioning groove 14 of the positioning block 5 corresponds to the center position of the strand, when the first steel wire 6 passes through the positioning block 5 and is straightened, the first steel wire 6 corresponds to the position close to the center line of the strand, the adjusting standard is that the first steel wire 6 is within 1mm of the center diameter of the angle adjusting reference hole 19, then the length of the second steel wire rope 11 is adjusted through the second steel wire rope length adjusting device 10, the angle of the strand shoe 7 is finely adjusted, and the aim is that the first steel wire 6 passing through the angle adjusting reference hole 19 reaches the adjusting standard requirement in two directions.
Example 8
In this embodiment, on the basis of embodiment 1 or 7, it is preferable that the diameter of the angle adjustment reference hole 19 is 6mm, and the diameter of the first steel wire 6 is 0.5 mm.
In the practical use process, the diameter of the angle adjusting reference hole 19 is 6mm, the diameter of the first steel wire 6 is 0.5mm, and the first steel wire 6 is convenient to observe and adjust within 1mm of the central diameter of the angle adjusting reference hole 19.
Example 9
A method for adjusting a main strand shoe of a suspension bridge uses any one of the above devices for adjusting the main strand shoe of the suspension bridge, and comprises the following steps:
s1: pre-mounting a thigh shoe positioner 8 on a pull rod 21 according to the thigh shoe design mounting position, and then mounting a thigh shoe 7;
s2: the adjusting device for installing the main strand shoe of the suspension bridge comprises a first adjusting component arranged in the direction parallel to the axis of the pull rod 21 and a second adjusting component arranged in the direction perpendicular to the axis of the pull rod 21; the method specifically comprises the following steps:
s21: the method comprises the steps that a steel wire positioning device 9 is installed under a thigh boot 7, a first steel wire 6 is anchored on a thigh boot positioner 8 and penetrates through an angle adjusting reference hole 19 in the center of the thigh boot, then the first steel wire 6 is connected with a tension scale 3 and a first steel wire rope length adjusting device 2 after bypassing a cable saddle 4 through a positioning block 5 and then is anchored on a catwalk 1, meanwhile, the first steel wire 6 is tensioned by the first steel wire rope length adjusting device 2, and the numerical value of the tension scale 3 is checked to avoid breaking the steel wire;
s22: one end of a second steel wire rope 11 is anchored on a supporting leg of the square operating platform, the other end of the second steel wire rope is wound and fixed in a strand groove 20 on the strand shoe 7, and a second steel wire rope length adjusting device 10 is arranged in the middle of the second steel wire rope 11;
s3: adjusting a main cable strand shoe of the suspension bridge, specifically: aligning an angle adjusting reference hole 19 according to the position of a first steel wire 6, correspondingly arranging a middle positioning groove 14 of a positioning block 5 as the center position of a strand, when the first steel wire 6 passes through the positioning block 5 and is straightened, namely, corresponding to the position near the center line of the strand, wherein the adjusting standard is that the first steel wire 6 is within 1mm of the center diameter of the angle adjusting reference hole 19, then adjusting the length of a second steel wire rope 11 through a second steel wire rope length adjusting device 10, finely adjusting the angle of the strand shoe 7, and adjusting a strand shoe positioner 8 to position the adjusted position of the strand shoe 7, wherein the target is that the first steel wire 6 passing through the angle adjusting reference hole 19 meets the adjusting standard requirements in two directions, and finally locking and positioning are carried out through a locking nut 13;
s4: and after the strand shoe adjustment is finished, the main cable strand shoe adjusting device of the suspension bridge is detached, so that the next repeated use is facilitated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (9)
1. A suspension bridge main cable thigh shoe adjusting device comprises a thigh shoe (7), a thigh shoe positioner (8) installed on a pull rod (21) on one side of a circular arc surface of the thigh shoe (7) and a locking nut (13) installed on the pull rod (21) on one side of a plane of the thigh shoe (7), and is characterized in that: further comprising: the first adjusting component is arranged in the direction parallel to the axis of the pull rod (21) and the second adjusting component is arranged in the direction vertical to the axis of the pull rod (21);
the first adjusting assembly comprises a first steel wire rope length adjusting device (2), a cable scattering saddle (4), a first steel wire (6) and a steel wire positioning device (9); the steel wire positioning device (9) is fixedly arranged at the fixed end of the thigh boot (7), one end of the first steel wire (6) is fixedly connected with the steel wire positioning device (9), and the other end of the first steel wire is fixedly connected with the catwalk (1);
the second adjusting assembly comprises a second steel wire rope length adjusting device (10) and a second steel wire rope (11), one end of the second steel wire rope (11) is fixedly connected to the thigh boot (7), one end of the second steel wire rope is fixedly connected to a steel wire rope anchoring point (12), and the steel wire rope anchoring point (12) is located on a supporting leg of the suspension bridge operating platform.
2. A suspension bridge main strand shoe adjustment device according to claim 1, wherein: scattered cable saddle (4) on be equipped with locating piece (5), locating piece (5) cross section size be the half of main cable strand, locating piece (5) upper surface middle part is equipped with positioning groove (14), positioning groove (14) direction with pull rod (21) axis direction is parallel.
3. A suspension bridge main strand shoe adjustment device according to claim 2, wherein: the positioning groove (14) is a triangular groove.
4. A suspension bridge main strand shoe adjustment device according to claim 1, wherein: the first adjusting assembly further comprises a tension scale (3), and the tension scale (3) is located between the first steel wire rope length adjusting device (2) and the cable scattering saddle (4).
5. A suspension bridge main strand shoe adjustment device according to claim 1, wherein: the steel wire positioning device (9) comprises a steel wire fixing seat (91) and a steel wire hole (92); the first steel wire (6) penetrates through the steel wire hole (92) and is fixedly connected with the steel wire hole (92).
6. A suspension bridge main strand shoe adjustment device according to claim 1, wherein: first wire rope length adjustment device (2) with second wire rope length adjustment device structure is the same, including first couple (15), wire rope gyro wheel (16), second couple (17), twist grip (18), wire rope gyro wheel (16) on the winding have wire rope, wire rope expansion end with first couple (15) fixed connection, during the use, the steel wire is connected respectively at first couple (15), second couple (17), through twist grip (18) drive wire rope gyro wheel (16) rotate to control wire rope receive and release and drive the steel wire of connecting on first couple (15) and carry out length adjustment.
7. A suspension bridge main strand shoe adjustment device according to claim 1, wherein: the thigh boot (7) is further provided with an angle adjusting reference hole (19) and a strand groove (20), the angle adjusting reference hole (19) is located in the center of the arc surface of the thigh boot (7), and the first steel wire (6) penetrates through the angle adjusting reference hole (19).
8. A suspension bridge main strand shoe adjustment device according to claim 7, wherein: the diameter of the angle adjusting reference hole (19) is 6mm, and the diameter of the first steel wire (6) is 0.5 mm.
9. A suspension bridge main strand shoe adjusting method using the suspension bridge main strand shoe adjusting device according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1: pre-mounting a thigh shoe positioner (8) on a pull rod (21) according to the thigh shoe design mounting position, and then mounting a thigh shoe (7);
s2: the adjusting device for installing the main strand shoe of the suspension bridge comprises a first adjusting component arranged in the direction parallel to the axis of the pull rod (21) and a second adjusting component arranged in the direction vertical to the axis of the pull rod (21); the method specifically comprises the following steps:
s21: the method comprises the steps that a steel wire positioning device (9) is installed under a thigh boot (7), a first steel wire (6) is anchored on a thigh boot positioner (8) and penetrates through an angle adjusting reference hole (19) in the center of the thigh boot, then a positioning block (5) is arranged, a cable scattering saddle (4) is bypassed, then a tension scale (3) and a first steel wire rope length adjusting device (2) are connected, then the first steel wire (6) is anchored on a catwalk (1), meanwhile, the first steel wire (6) is tensioned through the first steel wire rope length adjusting device (2), and the numerical value of the tension scale (3) is checked to avoid breaking the steel wire;
s22: one end of a second steel wire rope (11) is anchored on a supporting leg of the square operating platform, the other end of the second steel wire rope is wound and fixed in a strand groove (20) on a strand shoe (7), and a second steel wire rope length adjusting device (10) is arranged in the middle of the second steel wire rope (11);
s3: adjusting a main cable strand shoe of the suspension bridge, specifically: aligning an angle adjusting reference hole (19) according to the position of a first steel wire (6), correspondingly setting the position of a middle positioning groove (14) of a positioning block (5) as the center position of a strand, when the first steel wire (6) passes through the positioning block (5) and is straightened, namely corresponding to the position close to the center line of the strand, wherein the adjusting standard is that the first steel wire (6) is within 1mm of the center diameter of the angle adjusting reference hole (19), then adjusting the length of a second steel wire rope (11) through a second steel wire rope length adjusting device (10), finely adjusting the angle of the strand shoe (7), adjusting the position of the strand shoe (7) by an adjusting strand shoe positioner (8), and finally locking and positioning the first steel wire (6) which passes through the angle adjusting reference hole (19) through a locking nut (13) until the first steel wire (6) reaches the adjusting standard requirement in two directions;
s4: and after the strand shoe adjustment is finished, the main cable strand shoe adjusting device of the suspension bridge is detached, so that the next repeated use is facilitated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110719028.0A CN113356074A (en) | 2021-06-28 | 2021-06-28 | Suspension bridge main cable strand shoe adjusting device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110719028.0A CN113356074A (en) | 2021-06-28 | 2021-06-28 | Suspension bridge main cable strand shoe adjusting device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113356074A true CN113356074A (en) | 2021-09-07 |
Family
ID=77536824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110719028.0A Pending CN113356074A (en) | 2021-06-28 | 2021-06-28 | Suspension bridge main cable strand shoe adjusting device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113356074A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002363919A (en) * | 2001-06-12 | 2002-12-18 | Hokuto Tekko:Kk | Assembly and temporary installation device for bridge beam |
| JP2007315035A (en) * | 2006-05-25 | 2007-12-06 | Se Corp | Installation method of stay cable |
| KR20100074800A (en) * | 2008-12-24 | 2010-07-02 | 재단법인 포항산업과학연구원 | Installation apparatus of suspension bridge main cable strand |
| CN111855169A (en) * | 2020-06-12 | 2020-10-30 | 德阳天元重工股份有限公司 | Suspension bridge AS method main cable strand boot anchoring test assembly and test method thereof |
| CN112301887A (en) * | 2020-11-23 | 2021-02-02 | 安徽建工集团控股有限公司 | Suspension bridge main cable anchoring system under bedrock deep-buried condition and construction method |
| CN216074751U (en) * | 2021-06-28 | 2022-03-18 | 中交第二公路工程局有限公司 | Suspension bridge main push-towing rope anchor shoe adjusting device |
-
2021
- 2021-06-28 CN CN202110719028.0A patent/CN113356074A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002363919A (en) * | 2001-06-12 | 2002-12-18 | Hokuto Tekko:Kk | Assembly and temporary installation device for bridge beam |
| JP2007315035A (en) * | 2006-05-25 | 2007-12-06 | Se Corp | Installation method of stay cable |
| KR20100074800A (en) * | 2008-12-24 | 2010-07-02 | 재단법인 포항산업과학연구원 | Installation apparatus of suspension bridge main cable strand |
| CN111855169A (en) * | 2020-06-12 | 2020-10-30 | 德阳天元重工股份有限公司 | Suspension bridge AS method main cable strand boot anchoring test assembly and test method thereof |
| CN112301887A (en) * | 2020-11-23 | 2021-02-02 | 安徽建工集团控股有限公司 | Suspension bridge main cable anchoring system under bedrock deep-buried condition and construction method |
| CN216074751U (en) * | 2021-06-28 | 2022-03-18 | 中交第二公路工程局有限公司 | Suspension bridge main push-towing rope anchor shoe adjusting device |
Non-Patent Citations (1)
| Title |
|---|
| 柳学发，徐成: "大跨度悬索桥设计中几个关键问题", 铁道标准设计, no. 03, 20 March 1996 (1996-03-20), pages 1 - 3 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113454306B (en) | Integral lifting construction method and device for arch structure | |
| US20160333583A1 (en) | Pre-Tensioned Centrifugal Concrete Pile Provided with Steel Strand and Manufacturing Method | |
| CN106661855B (en) | The installation method of the ground based system of the ground based system and tower of tower | |
| US20110016804A1 (en) | Ultra-light, re-usable, extended-height meteorological tower apparatus and method | |
| CN216074751U (en) | Suspension bridge main push-towing rope anchor shoe adjusting device | |
| CN107787405B (en) | Method of erecting a tethered wind turbine tower | |
| CN112227225B (en) | Catwalk sag adjustment device for erecting main cable based on suspension bridge air spinning method and construction method thereof | |
| KR101989167B1 (en) | Composite hollow beam using dual-web and construction method therewith | |
| CN110042767B (en) | Cable buckling and anchoring method of cable hoisting system | |
| CN113356074A (en) | Suspension bridge main cable strand shoe adjusting device and method | |
| KR102172062B1 (en) | Antenna angle control apparatus | |
| CN110469102B (en) | High-altitude combined steel beam member installation operation platform and construction method thereof | |
| CN214271702U (en) | Catwalk sag adjusting device for erecting main cable based on suspension bridge air spinning method | |
| CN210439161U (en) | Cable fastening and anchoring device of cable hoisting system | |
| CN106758883B (en) | The interim pocket device for hoisting of steel wire rope for steel pipe truss concrete arch-type bridge suspender replacement and its for the method for suspender replacement | |
| CN106121268B (en) | The system and method for prestress rope integrative consolidation slab column | |
| US20110030193A1 (en) | System for preparing pre-assembled hanger supports | |
| JP6538091B2 (en) | Cable fixing means for horizontal joint and cable fixing procedure for horizontal joint | |
| CN114104989B (en) | Cable buckle integrated tower wind cable system of large-span cable crane and construction method | |
| CN110761196A (en) | Adjustable catwalk anchoring and connecting device | |
| CN110878517A (en) | Connecting structure, fixing structure, new main cable system and construction method for replacing main cable of suspension bridge | |
| KR101522608B1 (en) | Structure reinforcing method using prestress distribution apparatus and tendon | |
| CN201347537Y (en) | Bridge sling single twisted-line substitution structure | |
| KR101540729B1 (en) | Composite slab using wire-rope | |
| CN105714682B (en) | Operating system for inclined guy cable stretching in small space Sarasota |
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 |