Suspension bridge anti-shaking reference cable elevation measuring device

Abstract

The utility model relates to an elevation measuring device for an anti-shaking reference cable of a suspension bridge. The elevation measuring device comprises two auxiliary cable strands; the clamp set comprises a plurality of cable strand clamps, three of the cable strand clamps are main clamps used for being installed on the midspan of a reference cable strand and the midspan of two auxiliary cable strands respectively, a prism set is arranged on the main clamps in a plumb bob mode, and at least one cable strand clamp is an auxiliary clamp used for being installed on the auxiliary cable strands; the cable strand clamp on one auxiliary cable strand is connected with the cable strand clamp on the other auxiliary cable strand through the supporting rod, and the cable strand clamp on the auxiliary cable strand is further provided with the supporting rod used for being connected with the cable strand clamp on the reference cable strand; and a total station. The stable geometry is formed between the anti-shaking reference cable height measurement device and the two auxiliary cable strands, shaking of the reference cable strands is effectively weakened, the device adapts to the marine environment, and the measurement precision is high.

Description

Technical Field

[0001] This application relates to the field of bridge construction surveying technology, and in particular to a device for measuring the elevation of anti-sway reference cables for suspension bridges. Background Technology

[0002] As a key load-bearing structure of suspension bridges, cables play a crucial role in supporting the bridge structure. They consist of dozens or even hundreds of strands, including general strands and reference strands. During construction, each strand is installed separately, and then undergoes processes such as wire winding to ultimately form a complete cable. The reference strand serves as the benchmark for cable installation measurements.

[0003] The length of the reference cable strand can reach hundreds or even thousands of meters, and its elevation or sag is extremely sensitive to changes in atmospheric temperature, making it prone to deformation. Therefore, when measuring the elevation of the reference cable strand, it is usually required to do so at night when there is no wind or a light breeze below level 3, no sunshine, and a small temperature difference, to ensure that the reference cable strand is in a balanced state, thereby obtaining more accurate measurement data.

[0004] However, for cross-sea suspension bridges, even at night when there is no sunshine and the temperature difference is small, strong winds of level 3 to 6 often occur. These strong winds cause the reference cable strands to sway, posing a great challenge to the elevation measurement work.

[0005] In related technologies, the measurement of benchmark cable strand elevations generally employs a fitted elevation measurement method. This method requires measuring the elevations of multiple benchmark cable strands and performing calculations based on the theoretical formula for cable axis alignment. The measurement accuracy is relatively low and urgently needs improvement. Summary of the Invention

[0006] This application provides a suspension bridge anti-sway reference cable elevation measurement device to solve the problem in related technologies that require measuring the elevation of multiple reference cable strands and calculating based on cable axis theoretical formulas, resulting in relatively low measurement accuracy.

[0007] Firstly, a device for measuring the elevation of anti-sway reference cables for suspension bridges is provided, which includes:

[0008] Two auxiliary strands;

[0009] The clamp assembly includes multiple cable clamps, three of which are main clamps for mounting on the reference cable strand and the mid-span of two auxiliary cable strands respectively, the main clamps having a prism assembly on the plumb bob, and at least one of the cable clamps being an auxiliary clamp for mounting on the auxiliary cable strands.

[0010] Multiple support rods, wherein the cable clamp on one auxiliary cable strand is connected to the cable clamp on another auxiliary cable strand by a support rod, and the cable clamp on the auxiliary cable strand is also equipped with a support rod for connecting to the cable clamp on the reference cable strand;

[0011] And total station.

[0012] In some embodiments, the support rod is a telescopic rod;

[0013] The device also includes an inclinometer and a level.

[0014] In some embodiments, the prism assembly includes two prisms and a prism rod, the two prisms are arranged opposite each other and fixedly installed at one end of the prism rod, and the line connecting the centers of the two prisms is perpendicular to the prism rod.

[0015] In some embodiments, each of the strand clamps includes at least two clamps and fasteners. After the two clamps are connected by the fasteners, the inner hole formed by the clamps has the same cross-sectional shape and size as the reference strand or auxiliary strand.

[0016] In some embodiments, the prism rod has a protrusion at the end away from the prism, the outer wall of the clamp has an arc-shaped groove for the protrusion to slide, and a fastener is rotatably connected to the clamp to fix the prism rod on the clamp.

[0017] In some embodiments, the telescopic rod includes a sliding rod and a sleeve that are slidably connected, with a fastener rotatably connected to one end of the sleeve near the sliding rod to fix the sliding rod and the sleeve together.

[0018] In some embodiments, the slide rod and the sleeve are provided with a hinge fork at one end away from each other, and the outer wall of the clamp is provided with a hinge seat.

[0019] In some embodiments, the telescopic rod is provided with a damper.

[0020] In some embodiments, the prism rod is provided with a level bubble.

[0021] In some embodiments, the total station includes a first total station and a second total station, which are respectively installed at two control points with known elevations and plane coordinates on both banks of the suspension bridge.

[0022] This application provides a suspension bridge anti-sway reference cable elevation measurement device. Relying on a reference cable strand and two auxiliary cable strands erected at certain heights, the length of the telescopic rods between the cable strands is adjusted to ensure that the reference cable strand and the auxiliary cable strands together form a stable geometry, effectively reducing the swaying of the reference cable strand and helping to ensure the accuracy of the reference cable strand elevation measurement. By constructing a known geometrical elevation difference relationship between each point in triangle ABC, the accuracy of the actual elevation of point A in the reference cable strand during swaying is judged based on whether the deviation between the actual elevation difference relationship of points A, B, and C and its known geometrical elevation difference relationship is less than a threshold, which helps to improve measurement accuracy. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the installation environment for the anti-sway reference cable elevation measuring device provided in this application embodiment;

[0025] Figure 2 A schematic diagram of the anti-sway reference cable elevation measuring device provided in this application embodiment being installed on the cable strands of a suspension bridge;

[0026] Figure 3 This is a schematic diagram of the anti-sway reference cable elevation measuring device provided in the embodiments of this application;

[0027] Figure 4 A flowchart is provided for an embodiment of this application to illustrate a method for measuring the elevation of a suspension bridge anti-sway reference cable.

[0028] In the diagram: 1. Base strand; 2. Auxiliary strand; 3. Strand clamp; 31. Clamp; 32. Fixing screw; 33. Hinge seat; 4. Telescopic rod; 41. Slide rod; 42. Sleeve; 43. Fastening screw; 44. Damper; 5. Prism assembly; 51. Prism; 52. Prism rod; 6. First total station; 7. Second total station. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] This application provides a suspension bridge anti-sway reference cable elevation measurement device to solve the problem in related technologies that require measuring the elevation of multiple reference cable strands and calculating based on cable axis theoretical formulas, resulting in relatively low measurement accuracy.

[0031] like Figures 1 to 3 As shown, the anti-sway reference cable elevation measuring device for suspension bridges includes:

[0032] Two auxiliary cable strands 2 are arranged at a certain height interval from the reference cable strand 1, so that an acute-angled triangle spatial interval relationship is formed in the cross section of the plumb bob at the mid-span of the reference cable strand 1 and the auxiliary cable strand 2.

[0033] The clamping assembly includes four cable clamps 3, three of which are main clamps, fixed at the mid-span positions of the reference cable strand 1 and two auxiliary cable strands 2 respectively. The center of the regular hexagon of the reference cable strand 1 fixed by the main clamp is denoted as point A, and the centers of the regular hexagons of the two auxiliary cable strands 2 fixed by the main clamp are denoted as points B and C respectively. Each main clamp is equipped with a prism group 5 on a plumb bob. There is also a cable clamp 3 as an auxiliary clamp, which is installed on one of the auxiliary cable strands 2 and close to the mid-span position.

[0034] Five support rods 4, each of which is connected to a cable clamp on a different cable strand at both ends. Specifically, the cable clamp 3 on one auxiliary cable strand 2 is connected to the cable clamp 3 on another auxiliary cable strand 2 via a support rod 4. The cable clamp 3 on the auxiliary cable strand 2 is also equipped with a support rod 4 for connecting to the cable clamp 3 on the reference cable strand 1.

[0035] And total stations, including a first total station 6 and a second total station 7, which are respectively installed on two control points with known elevations and plane coordinates on both sides of the suspension bridge.

[0036] By adopting the above scheme, relying on the reference cable strand 1 and two auxiliary cable strands 2 erected at certain intervals, the reference cable strand 1 and the auxiliary cable strand 2 are connected by support rods 4, so that the reference cable strand 1 and the auxiliary cable strand 2 together form a stable cone, which effectively reduces the swaying of the reference cable strand 1 and helps to ensure the accuracy of the elevation measurement of the reference cable strand.

[0037] In some optional embodiments, multiple auxiliary clamps can be provided on the auxiliary cable strand 2, and the number of support rods 4 is adapted to the number of auxiliary clamps. Multiple auxiliary clamps and an appropriate number of support rods 4 cooperate to create a denser connection network between the reference cable strand 1 and the auxiliary cable strand 2. Adding more auxiliary clamps and support rods 4 to the stable conical structure strengthens the constraint and support of the reference cable strand 1, further enhancing the spatial structural stability of the entire measuring device and more effectively resisting the influence of external factors on the swaying of the reference cable strand, thereby improving measurement accuracy.

[0038] In some alternative embodiments, the support rod 4 has a known fixed length. In this embodiment, the support rod 4 is a telescopic rod, which can be flexibly adjusted in length to adapt to different measurement environments and cable strand installation conditions, further enhancing the adjustability and stability of the device. When the support rod 4 is a telescopic rod, the device also includes an inclinometer and a level. The inclinometer is a bidirectional inclinometer, which is used to measure the inclination angles of the side edge at the center of the regular hexagon of the reference cable strand 1 and the side edge at the center of the regular hexagon of the auxiliary cable strand 2 with the horizontal plane. The level is used to measure the slant distance between the side edge at the center of the regular hexagon of the reference cable strand 1 and the side edges at the center of the regular hexagon of the two auxiliary cable strands 2.

[0039] When the support rod 4 is a telescopic rod, the telescopic rod 4 includes a sliding rod 41 and a sleeve 42 that are slidably connected. The outer diameter of the sliding rod 41 matches the inner diameter of the sleeve 42. The sliding rod 41 can extend and retract along the sleeve 42. A fastener, which is a fastening screw 43, is rotatably connected to the end of the sleeve 42 near the sliding rod 41 to fix the sliding rod 41 and the sleeve 42 together. The sliding rod 41 and the sleeve 42 on the same telescopic rod 4 are provided with a hinge fork at their ends away from each other. The hinge fork matches the hinge seat 33 on the cable clamp 3 to fix one end of the sliding rod 41 and the sleeve 42 to the clamp 31.

[0040] In this embodiment, a damper 44 is provided on the telescopic rod 4 to reduce the swaying of the telescopic rod 4 caused by environmental influences.

[0041] In some embodiments, the prism assembly 5 includes two prisms 51 and a prism rod 52. The two prisms 51 are arranged opposite each other and fixedly installed at one end of the prism rod 52. The center line connecting the two prisms 51 is perpendicular to the prism rod 52. The prism rod 52 is provided with a level bubble and a protrusion at its lower end. During installation, the prism 51 can be mounted on the cable clamp 2 using the level bubble on the prism rod 52. The protrusion at the lower end of the prism rod 52 is locked to the arc-shaped groove using the clamping screw on the outer wall of the clamp 31. By setting two prisms 51 at one end of the prism rod 52, during measurement, the first total station 6 and the second total station 7 respectively measure the elevation of the two prisms 51 in the prism assembly 5. The average elevation of the two prisms 51 is taken as the actual elevation of the prism assembly 5, which helps to improve the measurement accuracy.

[0042] In some embodiments, each cable clamp 3 includes two clamps 31 and fasteners, the fasteners being fixing screws 32. After being connected by the fasteners, the clamps 31 are circular on the outside. The inner hole formed by the clamps 31 has the same cross-sectional shape and size as the reference cable strand 1 or the auxiliary cable strand 2, that is, the inner hole is a regular hexagon, used to clamp on the mid-span of the reference cable strand 1 or the auxiliary cable strand 2. The outer wall of the clamps 31 has multiple hinge seats 33, each with a tightening pin, used to connect the telescopic rod 4 and tighten the telescopic rod 4 onto the hinge seat 33. The outer wall of the clamps 31 has an arc-shaped groove and a clamping screw. The arc-shaped groove matches the protrusion at the lower end of the prism rod 52. The protrusion can slide along the arc-shaped groove on the outer wall of the clamps 31 and is fixed by the clamping screw, so that the prism assembly 5 can be installed along the plumb line.

[0043] like Figure 4 As shown, a method for measuring the elevation of a suspension bridge anti-sway reference cable includes the following steps:

[0044] S1: After installing two auxiliary cable strands 2 and reference cable strand 1, install the main clamps in the middle of the span of the auxiliary cable strands 2 and reference cable strand 1, and connect each main clamp using the support rod 4;

[0045] S2: Install an auxiliary clamp on the auxiliary cable strand 2, and use the support rod 4 to connect the auxiliary clamp to the cable strand clamp 3 on another auxiliary cable strand 2 and the cable strand clamp 3 on the reference cable strand 1;

[0046] S3: Measure the mid-span elevation difference between the reference cable strand 1 and the auxiliary cable strand 2, and use it as the known mid-span elevation difference;

[0047] S4: Measure the actual mid-span elevation of the reference cable strand 1 and the auxiliary cable strand 2 respectively;

[0048] S5: Based on the deviations between the actual mid-span elevation difference of the reference cable strand 1 and the known mid-span elevation difference of the two auxiliary cable strands 2, determine the accuracy of the actual mid-span elevation of the reference cable strand 1.

[0049] In step S1, connecting the main clamps using the support rod 4 can be completed in step S2. Installing the prism assembly 5 at the mid-span of the auxiliary cable strand 2 and the reference cable strand 1 can also be completed in step S2. Steps S1 and S2 are not sequential. Alternatively, the support rod 4 can be installed on the cable strand clamp 3 first, and then the cable strand clamp 3 can be installed on the reference cable strand 1 and the auxiliary cable strand 2; or the cable strand clamp 3 can be installed on the reference cable strand 1 and the auxiliary cable strand 2 first, and then the support rod 4 can be installed on the cable strand clamp 3.

[0050] In this application, after the reference cable strand 1 is erected, two auxiliary cable strands 2 are erected at a certain height interval from the reference cable strand 1, forming an acute-angled triangle spatial interval relationship at the mid-span plumb cross-sections of the reference cable strand 1 and the auxiliary cable strands 2. Three of the four cable strand clamps 3 are installed on the mid-span plumb cross-sections ABC of the reference cable strand 1 and the two auxiliary cable strands 2, respectively. The other cable strand clamp 3 is installed near the mid-span plumb cross-section ABC of one of the two auxiliary cable strands 2, and each cable strand clamp 3 is fixed to the reference cable strand 1 and the auxiliary cable strands 2 by fixing screws 32.

[0051] In this embodiment, the support rod 4 is a telescopic rod. By adjusting the length of the five telescopic rods 4, the hinge forks at one end of the slide rod 41 and the sleeve 42 are respectively connected to the hinge seats 33 of each clamp 31 of different cable strand clamps 3. The slide rod 41 and the sleeve 42 are tightened on the hinge seats 33 by the tightening pins on each hinge seat 33. The slide rod 41 and the sleeve 42 are locked with the fastening screws 43, which together form a stable cone-shaped anti-sway reference cable elevation measuring device.

[0052] The three prism groups 5 are respectively installed on the main clamps of the reference cable strand 1 and the auxiliary cable strand 2 by the level bubble on the prism rod 52. The protrusion at the lower end of the prism rod 52 is locked to the arc groove by the clamping screw on the outer wall of the clamp 31, thus completing the installation of the anti-sway reference cable elevation measuring device.

[0053] In some alternative embodiments, the support rod 4 has a known fixed length. In this case, it is only necessary to connect the hinge forks at both ends of the support rod 4 to the hinge seats 33 of each clamp 31 of the different cable clamps 3, and tighten both ends of the support rod 4 onto the hinge seats 33 by tightening pins on each hinge seat 33.

[0054] Step S3 specifically includes the following steps:

[0055] On the vertical cross-section of the reference strand 1 and auxiliary strand 2 at the mid-span, a level with a bidirectional inclinometer is used to measure the inclination angle and slope distance between the side edge at the center of the regular hexagon of the reference strand 1 and the side edge at the center of the regular hexagon of the two auxiliary strands 2. Based on the inclination angle and slope distance between the side edge at the center of the regular hexagon of the reference strand 1 and the side edge at the center of the regular hexagon of the two auxiliary strands 2, the height difference ΔH between the center of the regular hexagon of the reference strand 1 and the center of the regular hexagon of the two auxiliary strands 2 is calculated. AB and ΔH AC The known mid-span elevation difference between the reference strand 1 and the two auxiliary strands 2 is given. It should be noted that ΔH is calculated using the inclination angle and slope distance between the lateral edge at the center of the regular hexagon of the reference strand 1 and the lateral edges on the same side at the center of the regular hexagons of the two auxiliary strands 2. AB and ΔH ACΔH is calculated using the tilt angle and slope distance between the center of the reference hexagon 1 and the centers of the two auxiliary hexagons 2. AB and ΔH AC The two are equal.

[0056] Step S4 specifically includes the following steps:

[0057] The first total station 6 and the second total station 7 are respectively installed on two control points with known elevation and plane coordinates on both sides of the suspension bridge. The first total station 6 is adjusted to aim at one of the prisms 51 in the prism group 5 on the reference cable strand 1, and the measured elevation of prism 51 is observed and obtained.

[0058] Adjust the second total station 7 to aim at another prism 51 in the prism group 5, and observe and obtain the measured elevation of the other prism 51;

[0059] The average of the measured elevations of the two prisms 51 in prism group 5 is used as the measured elevation of the reference cable 1. Based on the measured elevation of prism group 5 at point A, the differential elevation of prism group 5 at point A is obtained.

[0060] Similarly, the measured elevation values ​​of the prism group 5 on the auxiliary cable strand 2 are measured sequentially according to the above method. Based on the measured elevations of the prism group at point B and the prism group at point C, the differential elevations of the prism group at point B and the prism group at point C are obtained.

[0061] Based on the differential elevations of the three-point prism group 5 (A, B, and C) and the height of each prism group 5 to the center of the corresponding reference strand 1 or auxiliary strand 2 regular hexagon, the actual mid-span elevations of the reference strand 1 and the two auxiliary strands 2 on their mid-span plumb cross-section ABC are calculated.

[0062] After obtaining the measured elevation values ​​of multiple prisms 51 on prism group 5, the average value is calculated. The average value observation method is used to reduce the measurement error of the measured elevation of prism group 5, reduce the error of a single measurement, and improve the measurement accuracy.

[0063] Step S5 specifically includes the following steps:

[0064] Based on the actual elevations of the reference strand 1 and the two auxiliary strands 2 on their mid-span plumb cross-sections, calculate the actual mid-span elevation difference ΔH' between the reference strand 1 and the auxiliary strands 2. AB and ΔH' AC Compare the deviation between the actual mid-span elevation difference and the known mid-span elevation difference:

[0065] Δ AB =ΔH' AB -ΔH AB ;

[0066] Δ AC =ΔH' AC -ΔH AC ;

[0067] If the actual mid-span elevation difference between the reference cable strand 1 and the two auxiliary cable strands 2 exceeds the known mid-span elevation difference, repeat the above steps until the difference is less than the allowable deviation, and use the measured elevation value as the mid-span elevation of the reference cable strand 1.

[0068] In summary, compared with the prior art, the beneficial effects of the present invention are as follows:

[0069] (1) The purpose of this invention is to provide a suspension bridge anti-sway reference cable elevation measurement device. It relies on the reference cable strand and two auxiliary cable strands erected at certain heights. After adjusting the length of the five telescopic rods, each of their hinge forks is connected to the hinge seats of each clamp of the four cable strand clamps. The telescopic rods are tightened to the hinge seats by the tightening pins on each hinge seat. The sliding rods and sleeves of the telescopic rods are locked with fastening screws. Together, they form a stable anti-sway reference cable elevation measurement device geometry, which effectively reduces the sway of the reference cable strand, helps to ensure the accuracy of the reference cable strand elevation measurement during swaying, adapts to the marine environment, and has high measurement accuracy.

[0070] (2) By constructing the known geometrical elevation differences between points of △ABC, the accuracy of the actual elevation of the reference cable point A during swaying is judged based on whether the deviation between the actual elevation differences of points A, B, and C and their known geometrical elevation differences is less than a threshold. When the deviation is less than the threshold, the deviation between the actual elevation differences of points A, B, and C and their known geometrical elevation differences can be used to average and correct point A (the average value of each point is taken to obtain the correction value of point A). The correction value of point A is then used to correct the actual elevation of point A, further improving the accuracy of the elevation measurement of point A.

[0071] (3) The purpose of this invention is to provide a suspension bridge anti-sway reference cable elevation measurement device. The auxiliary cable strands installed in advance are general cable strands that need to be installed during construction. The installation of auxiliary cable strands in advance does not affect the construction of general cable strands and is also beneficial to the measurement of reference cable strand elevation.

[0072] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0073] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A device for measuring the elevation of a suspension bridge's anti-sway reference cable, characterized in that, It includes: Two auxiliary strands (2); The clamp assembly includes multiple cable clamps (3), three of which are main clamps for mounting on the mid-span of the reference cable (1) and two auxiliary cables (2), respectively. The main clamps are provided with prism groups (5) on the plumb bobs, and at least one of the cable clamps (3) is an auxiliary clamp for mounting on the auxiliary cables (2). Multiple support rods (4), wherein the cable clamp (3) on one auxiliary cable strand (2) is connected to the cable clamp (3) on another auxiliary cable strand (2) by support rods (4), and the cable clamp (3) on the auxiliary cable strand (2) is also equipped with support rods (4) for connecting the cable clamp (3) on the reference cable strand (1); And total station.

2. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 1, characterized in that: The support rod (4) is a telescopic rod; The device also includes an inclinometer and a level.

3. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 2, characterized in that: The prism assembly (5) includes two prisms (51) and a prism rod (52). The two prisms (51) are arranged opposite each other and fixedly installed at one end of the prism rod (52). The center line connecting the two prisms (51) is perpendicular to the prism rod (52).

4. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 3, characterized in that: Each of the cable clamps (3) includes at least two clamps (31) and fasteners. After the two clamps (31) are connected by the fasteners, the inner hole formed by the clamps (31) has the same cross-sectional shape and size as the reference cable strand (1) or the auxiliary cable strand (2).

5. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 4, characterized in that: The prism rod (52) has a protrusion at the end away from the prism (51), and the outer wall of the clamp (31) has an arc-shaped groove for the protrusion to slide. Fasteners are rotatably connected to the clamp (31) so that the prism rod (52) is fixed on the clamp (31).

6. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 4, characterized in that: The support rod (4) includes a sliding rod (41) and a sleeve (42) that are slidably connected. A fastener is rotatably connected to one end of the sleeve (42) near the sliding rod (41) so that the sliding rod (41) and the sleeve (42) are fixedly connected.

7. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 6, characterized in that: The slide rod (41) and the sleeve (42) are provided with a hinge fork at one end away from each other, and the outer wall of the clamp (31) is provided with a hinge seat (33).

8. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 2, characterized in that: The support rod (4) is equipped with a damper (44).

9. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 3, characterized in that: A level bubble is provided on the prism rod (52).

10. The suspension bridge anti-sway reference cable elevation measuring device as described in claim 1, characterized in that: The total station includes a first total station (6) and a second total station (7), which are respectively installed on two control points with known elevations and plane coordinates on both sides of the suspension bridge.

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