Suspension bridge main cable reference strand positioning device with wind resistance and measuring method

Abstract

The invention provides a wind-resistant suspension bridge main cable reference strand positioning device and a wind-resistant suspension bridge main cable reference strand measuring method. A main cable reference strand clamp is mounted in a square frame, and a vertical shock absorber is mounted between the top of an upper half clamp of a fixing bolt and the inner side of a top plate of the square frame; another vertical shock absorber is mounted between the bottom of the lower half clamp and the inner side of the bottom plate of the square frame; lateral shock absorbers are installed between the two side portions of the upper half clamp and the square frame respectively through the fixing bolts, and lateral shock absorbers are installed between the two side portions of the lower half clamp and the square frame respectively. The outer side of a left side plate and the outer side of a right side plate of the fixing bolt square frame are each provided with a flexible shockproof hammer. And a rigid shockproof hammer is mounted on the outer side of the bottom plate of the square frame for fixing the bolts. The positioning device can solve the problem that in existing suspension bridge construction, the reference cable strand is not stably positioned under the action of wind power. By means of the device, the stability and accurate positioning of the reference cable strand can be kept in a strong wind environment, the construction precision and efficiency of suspension bridge main cable installation are improved, and the safety and durability of a bridge structure are ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridges, relates to the construction of suspension bridges, and particularly relates to a positioning device and a measuring method for the reference cable strands of the main cable of a suspension bridge with wind resistance performance. Background Art

[0002] In the construction of suspension bridges, the accurate positioning of the reference cable strands is an important step to ensure the forming quality of the main cable. The traditional positioning of the reference cable strands usually measures by continuously erecting prisms up and down through physical marks. This method not only has low efficiency, but also in the face of complex construction environments, such as strong wind weather, the stability and accurate positioning of the reference cable strands will be greatly affected. The wind force at the construction site of the suspension bridge has a significant impact on the swaying and displacement of the cable strands, which may lead to positioning errors, thereby affecting the final forming accuracy of the main cable and even endangering the overall structural safety of the bridge. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a positioning device and a measuring method for the reference cable strands of the main cable of a suspension bridge with wind resistance performance, and solve the technical problem that the wind resistance performance and positioning accuracy of the devices in the prior art need to be further improved.

[0004] Another purpose of the present invention is to provide a measuring method for the reference cable strands of the main cable of a suspension bridge with wind resistance performance, and solve the technical problem that the measuring accuracy of the measuring methods in the prior art needs to be further improved under the action of wind force.

[0005] In order to solve the above technical problems, the present invention is implemented by adopting the following technical solutions:

[0006] A positioning device for the reference cable strands of the main cable of a suspension bridge with wind resistance performance, including a square frame. The square frame includes a horizontally arranged top plate, and the horizontal two ends of the top plate are detachably and vertically installed at the tops of the left side plate and the right side plate. The left side plate and the right side plate are arranged in parallel, and the bottoms of the left side plate and the right side plate are respectively vertically fixed at the horizontal two ends of the bottom plate.

[0007] A main cable reference cable strand clamp is installed inside the square frame. The main cable reference cable strand clamp includes a detachable upper half clamp and a lower half clamp.

[0008] A vertical shock absorber is installed between the top of the upper half clamp and the inner side of the top plate of the square frame, and another vertical shock absorber is installed between the bottom of the lower half clamp and the inner side of the bottom plate of the square frame.

[0009] A lateral shock absorber is installed between each of the two sides of the upper half clamp and the square frame, and a lateral shock absorber is also installed between each of the two sides of the lower half clamp and the square frame.

[0010] A flexible anti-vibration hammer is respectively installed on the outer sides of the left plate and the right plate of the square frame.

[0011] A rigid anti-vibration hammer is installed on the outer side of the bottom plate of the square frame.

[0012] A pair of prism support frames are vertically installed on the outer side of the top plate of the square frame, and prisms are detachably installed on the prism support frames.

[0013] The present invention also protects a method for measuring the reference cable strand of the main cable of a suspension bridge with wind resistance performance, and this method uses the positioning device for the reference cable strand of the main cable of a suspension bridge with wind resistance performance as described above.

[0014] Compared with the prior art, the present invention has the following technical effects:

[0015] (Ⅰ) The positioning device of the present invention can solve the problem of unstable positioning of the reference cable strand under the action of wind force during the construction of the existing suspension bridge. Through the device of the present invention, the stability and precise positioning of the reference cable strand can be maintained in a strong wind environment, improving the construction accuracy and efficiency of the installation of the main cable of the suspension bridge, and ensuring the safety and durability of the bridge structure.

[0016] (Ⅱ) The positioning device of the present invention has strong wind resistance performance. Through the vertical shock absorber, lateral shock absorber, flexible and rigid anti-vibration hammers, it can effectively resist the vibration and sway brought by strong wind, maintain the stability of the reference cable strand, and reduce the influence of wind force on the positioning accuracy of the cable strand. While the traditional device is prone to positioning errors in a strong wind environment, affecting the construction accuracy and safety.

[0017] (Ⅲ) The positioning device of the present invention has high positioning accuracy. Through the cooperation of the total station and the prism, combined with the spatial three-dimensional coordinate measurement of the two prisms, the coordinates of the center of the reference cable strand can be accurately calculated. In a complex environment, this method is more accurate and efficient than the traditional physical marking and repeated erection of prisms.

[0018] (Ⅳ) The positioning device of the present invention can reduce the influence of vibration. The device effectively attenuates the influence of wind force and mechanical vibration on the reference cable strand through the shock absorption structure, greatly reducing the sway of the reference cable strand, and ensuring the stability and accuracy of the measurement data. It is difficult for the traditional device to effectively suppress vibration, especially when the wind speed is relatively high or the environment is unstable, which may lead to measurement errors.

[0019] (Ⅴ) The positioning device of the present invention has strong adaptability, reasonable structure and simple installation, and can maintain efficient operation in various bad weather and complex construction environments, and is especially suitable for areas with relatively high wind speed. The traditional measurement device has poor adaptability to environmental factors, and factors such as wind force will directly affect the measurement accuracy.

[0020] (VI) The measurement method of the present invention can calculate the spatial coordinates of the reference cable strand center by measuring the spatial coordinates of two prisms, aiming to solve the problems of insufficient measurement accuracy and poor stability of the reference cable strand under the influence of wind force during the construction of the current suspension bridge. This method can ensure the accurate measurement of the reference cable strand under various wind conditions, thereby improving the installation accuracy and construction quality of the main cable of the suspension bridge.

[0021] (VII) The measurement method of the present invention can adjust the position between the prisms to ensure clear line of sight, and does not require personnel to hold and erect the prisms, reducing the interference and errors of manual operation. The traditional method relies on manual adjustment and is easily affected by factors such as the technical level difference and fatigue of the operators. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the positioning device for the reference cable strand of the main cable of the suspension bridge with wind resistance performance of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the square frame of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the vertical shock absorber of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the lateral shock absorber of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the flexible anti-vibration hammer of the present invention.

[0027] Figure 6 It is a schematic diagram of the structure of the rigid anti-vibration hammer of the present invention.

[0028] The meanings of the various reference numerals in the figure are as follows: 1 - square frame, 2 - main cable reference cable strand clamp, 3 - vertical shock absorber, 4 - lateral shock absorber, 5 - flexible anti-vibration hammer, 6 - rigid anti-vibration hammer, 7 - triangular shock absorber support, 8 - prism support frame, 9 - prism, 10 - prism mounting hole.

[0029] 101 - top plate, 102 - left side plate, 103 - right side plate, 104 - bottom plate, 105 - sliding groove.

[0030] 201 - upper half clamp, 202 - lower half clamp.

[0031] 301 - U-shaped frame, 302 - fixing bolt, 303 - auxiliary support bolt, 304 - limit nut, 305 - vertical shock spring, 306 - spring top cap, 307 - main support bolt,

[0032] 401 - The first damper, 402 - The first shock-absorbing spring, 403 - The first short spring baffle, 404 - The first connecting bolt, 405 - The short connecting plate.

[0033] 501 - The second damper, 502 - The second shock-absorbing spring, 503 - The long spring baffle, 504 - The second connecting bolt, 505 - The connecting plate, 506 - The long support rod, 507 - The flexible steel strand, 508 - The first anti-vibration hammer.

[0034] 601 - The third damper, 602 - The third shock-absorbing spring, 603 - The second short spring baffle, 604 - The sleeve, 605 - The rigid long rod, 606 - The fourth shock-absorbing spring, 607 - The annular limiter, 608 - The third connecting bolt, 609 - The connecting plate, 610 - The second anti-vibration hammer.

[0035] The following further elaborates on the specific content of the present invention in conjunction with embodiments. Specific Embodiments

[0036] It should be noted that all the devices and components in the present invention, unless otherwise specified, are all the devices and components known in the prior art.

[0037] In order to overcome the deficiencies of traditional methods in wind resistance performance and positioning accuracy, there is an urgent need for a reference cable strand positioning device and its measurement method that can still maintain high-precision positioning under the action of wind. Such a device should have good wind resistance performance, be able to stabilize the reference cable strand in a strong wind environment, reduce its swaying and displacement, and provide accurate and reliable measurement data to ensure the accurate positioning of the reference cable strand, thereby guaranteeing the construction quality and structural safety of the suspension bridge.

[0038] The following gives specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations made on the basis of the technical solutions of this application fall within the protection scope of the present invention.

[0039] Embodiment 1:

[0040] This embodiment provides a reference cable strand positioning device for a suspension bridge with wind resistance performance, as Figure 1 shown, including a square frame 1, as Figure 2 shown. The fixed bolt square frame 1 includes a horizontally arranged top plate 101. The horizontal two ends of the top plate 101 are detachably and vertically installed at the tops of the left side plate 102 and the right side plate 103. The left side plate 102 and the right side plate 103 are arranged in parallel, and the bottoms of the left side plate 102 and the right side plate 103 are respectively vertically fixed at the two horizontal ends of the bottom plate 104.

[0041] As Figure 1As shown in the figure, a main cable reference strand clamp 2 is installed inside the fixed bolt square frame 1. The main cable reference strand clamp 2 includes a detachable upper half clamp 201 and a lower half clamp 202.

[0042] As Figure 1 shown in the figure, a vertical shock absorber 3 is installed between the top of the fixed bolt upper half clamp 201 and the inner side of the top plate 101 of the square frame 1, and another vertical shock absorber 3 is installed between the bottom of the lower half clamp 202 and the inner side of the bottom plate 104 of the square frame 1.

[0043] As Figure 1 shown in the figure, a lateral shock absorber 4 is installed between each of the two sides of the fixed bolt upper half clamp 201 and the square frame 1, and a lateral shock absorber 4 is also installed between each of the two sides of the lower half clamp 202 and the square frame 1.

[0044] As Figure 1 shown in the figure, a flexible shock damper 5 is installed on the outer sides of the left side plate 102 and the right side plate 103 of the fixed bolt square frame 1 respectively.

[0045] As Figure 1 shown in the figure, a rigid shock damper 6 is installed on the outer side of the bottom plate 104 of the fixed bolt square frame 1.

[0046] As a specific solution of this embodiment, as Figure 3 shown in the figure, the fixed bolt vertical shock absorber 3 includes a U-shaped frame 301. The closed end of the U-shaped frame 301 is fixedly connected to the square frame 1 through a fixed bolt 302. The open end of the U-shaped frame 301 is connected to one end of two auxiliary support bolts 303 through a limit nut 304. The other ends of the two auxiliary support bolts 303 are fixedly connected to the main cable reference strand clamp 2, so that the U-shaped frame 301 can move vertically on the two auxiliary support bolts 303.

[0047] As Figure 3 shown in the figure, a vertical shock absorption spring 305 is installed inside the fixed bolt U-shaped frame. One end of the vertical shock absorption spring 305 abuts against the inner side of the closed end of the U-shaped frame 301, and the other end of the vertical shock absorption spring 305 abuts inside a spring top cap 306. The spring top cap 306 is connected to the main cable reference strand clamp 2 through a main support bolt 307.

[0048] In this embodiment, as Figure 3 shown in the figure, the spring top cap 305 restricts the up and down movement of the main support bolt 304. The auxiliary support bolts 303 and the limit nut 304 can withstand the tension of the vertical shock absorption spring 305, so that only the vibration of the vertical shock absorption spring 305 can be used to dissipate energy between the vertical shock absorber 3 and the main cable reference strand clamp 2.

[0049] As a specific solution of this embodiment, as Figure 4 shown, the fixed bolt lateral shock absorber 4 includes a first damper 401, a first shock spring 402 is sleeved on the first damper 401, both ends of the first shock spring 402 are respectively abutted against a first short spring baffle 403, and the two first short spring baffles 403 are fixed at positions close to both ends of the first damper 401.

[0050] As Figure 4 shown, one end of the first damper 401 is connected to one end of a first pair of short connecting plates 405 through a first connecting bolt 404, and the other end of the first pair of short connecting plates 405 is connected to the fixed bolt square frame 1; one end of the first damper 401 is also connected to one end of a second pair of short connecting plates 405 through a first connecting bolt 404, and the other end of the second pair of short connecting plates 405 is connected to the fixed bolt main cable reference strand clamp 2; the other end of the first damper 401 is connected to one end of a third pair of short connecting plates 405 through a first connecting bolt 404, and the other end of the third pair of short connecting plates 405 is connected to the fixed bolt square frame 1; the other end of the first damper 401 is also connected to one end of a fourth pair of short connecting plates 405 through a first connecting bolt 404, and the other end of the fourth pair of short connecting plates 405 is connected to the fixed bolt main cable reference strand clamp 2.

[0051] As a specific solution of this embodiment, as Figure 5 shown, the fixed bolt flexible shock damper 5 includes a second damper 501, a second shock spring 502 is sleeved on the second damper 501, both ends of the second shock spring 502 are respectively abutted against a long spring baffle 503, and the two long spring baffles 503 are fixed at positions close to both ends of the second damper 501.

[0052] As Figure 5 shown, one end of the second damper 501 of the fixed bolt is connected to the outside of the left side plate 102 or the outside of the right side plate 103 of the fixed bolt square frame 1 through a second connecting bolt 504, the other end of the second damper 501 is connected to a connecting plate 505 through a second connecting bolt 504, the connecting plate 505 is connected to one end of a long support rod 506 through a second connecting bolt 504, and the other end of the long support rod 506 is connected to the outside of the left side plate 102 or the outside of the right side plate 103 of the fixed bolt square frame 1 through a second connecting bolt 504, so that a triangular structure is arranged among the second damper 501, the long support rod 506 and the square frame 1.

[0053] As Figure 5 shown, a flexible steel strand 507 is also penetrated through the fixed bolt connecting plate 505, the flexible steel strand 507 is arranged perpendicular to the fixed bolt square frame 1 in space, and first shock dampers 508 are respectively installed at both ends of the flexible steel strand 507.

[0054] As a specific solution of this embodiment, as Figure 6 shown, the fixed-bolt rigid shock absorber 6 includes a pair of vertically arranged third dampers 601. A third shock-absorbing spring 602 is sleeved on each of the pair of third dampers 601. One end of the third shock-absorbing spring 602 abuts against a second spring baffle 603, and the second short spring baffle 603 is fixed at a position near one end of the third damper 601. One ends of the pair of third dampers 601 are respectively installed on the outer side of the bottom plate 104 of the fixed-bolt square frame 1. Sleeve 604 is provided at each of the other ends of the pair of third dampers 601. The other end of the third shock-absorbing spring 602 abuts against the sleeve 604, and a horizontally arranged rigid long rod 605 is installed in the two sleeves 604.

[0055] As Figure 6 shown, a fourth shock-absorbing spring 606 is sleeved on the fixed-bolt rigid long rod 605. Both ends of the fourth shock-absorbing spring 606 are respectively limited by an annular limiter 607, and the annular limiter 607 is sleeved on the rigid long rod 605. The annular limiter 607 is connected to one end of a connecting plate 609 through a third connecting bolt 608, and the other end of the connecting plate 609 is connected to one end of the third damper 601 through a third connecting bolt 608.

[0056] As Figure 6 shown, second shock absorbers 610 are respectively installed at the horizontal two ends of the fixed-bolt rigid long rod 605.

[0057] As a preferred solution of this embodiment, as Figure 1 and Figure 2 shown, the fixed-bolt lateral shock absorber 4 is connected to the square frame 1 through a triangular shock-absorbing bracket 7. The inclined plate of the triangular shock-absorbing bracket 7 is connected to the short connecting plate 405 of the lateral shock absorber, and the horizontal plate of the triangular shock-absorbing bracket 7 is connected to the square frame 1. Chutes 105 are respectively formed on the inner walls of the left side plate 102 and the right side plate 103 of the fixed-bolt square frame 1, and the vertical plates of the triangular shock-absorbing bracket 7 are installed in the chutes 105.

[0058] As a preferred solution of this embodiment, as Figure 1 shown, a pair of prism support frames 8 are vertically installed on the outer side of the top plate 101 of the fixed-bolt square frame 1, and a prism 9 is detachably installed on the prism support frame.

[0059] As a preferred solution of this embodiment, as Figure 1 shown, multiple pairs of prism mounting holes 10 are formed on a pair of prism support frames 8 of the fixed bolt.

[0060] In this embodiment, under the action of wind, the vibration generated by the reference cable strand is subjected to energy attenuation and shock absorption treatment through the vertical shock absorber 3 and the lateral shock absorber 4 inside the square frame 1, and then transmitted to the outside of the square frame 1. Then, through the relative movement between the first shock absorber 508 and the second shock absorber 610 in the flexible shock damper 5 and the rigid shock damper 6, these vibration energies are effectively consumed. The positioning device of the present invention can significantly suppress the vibration frequency and amplitude of the reference cable strand, thereby reducing the shaking of the prism 9 and improving the positioning accuracy of the reference cable strand.

[0061] Embodiment 2:

[0062] This embodiment provides a method for measuring the reference cable strand of the main cable of a suspension bridge with wind resistance performance. This method uses the positioning device for the reference cable strand of the main cable of a suspension bridge with wind resistance performance given in Embodiment 1.

[0063] The specific steps of this method are as follows:

[0064] Step 1: Determine the size of the reference cable strand of the suspension bridge through the construction design drawings, and manufacture the hexagonal main cable reference cable strand fixture 2 to ensure that the reference cable strand matches the size of the assembled main cable reference cable strand fixture 2.

[0065] Step 2: Set up a total station at the measurement reference point, lay out the measuring point mileage of the main cable reference cable strand according to the drawings and make marks to provide accurate reference points for subsequent cable strand positioning.

[0066] Step 3: Place the reference cable strand positioning device at the measuring point, install the triangular shock absorber bracket 7 along the chute 105 inside the square frame 1, connect the top plate 101 to the left side plate 102 and the right side plate 103 by bolts, connect and assemble the upper half fixture 201 and the lower half fixture 202 by bolts and nuts to form the hexagonal main cable reference cable strand fixture 2, place the two prisms 9 on the prism support frame 8, and adjust the position of the prism 9 to ensure that it will not be blocked by the line of sight.

[0067] Step 4: Align the measuring prism 9 with the total station observation point, and use coordinate measurement to measure the three-dimensional coordinates of the two prisms 9 from top to bottom as A(x1, y1) and B(x2, y2) respectively. Given that the center distance between the two prisms AB is D1 and the distance from prism B to the center of the reference cable strand is D2, the coordinates of the center C(x3, y3) point of the reference cable strand can be deduced as follows: By measuring at multiple different positions, the actual line type of the reference cable strand can be calculated, and compared with the designed line type for adjustment, so as to ensure the accuracy and consistency of the installation position of the reference cable strand.

Claims

1. A positioning device for the reference cable strand of the main cable of a suspension bridge with wind resistance, comprising a square frame (1). The square frame (1) includes a horizontally arranged top plate (101). The horizontal two ends of the top plate (101) are detachably and vertically installed at the tops of the left side plate (102) and the right side plate (103). The left side plate (102) and the right side plate (103) are arranged in parallel. The bottoms of the left side plate (102) and the right side plate (103) are respectively vertically fixed at the horizontal two ends of the bottom plate (104). A reference cable strand clamp (2) of the main cable is installed inside the square frame (1). The reference cable strand clamp (2) of the main cable includes a detachable upper half clamp (201) and a lower half clamp (202). It is characterized in that: A vertical shock absorber (3) is installed between the top of the upper half clamp (201) and the inner side of the top plate (101) of the square frame (1), and another vertical shock absorber (3) is installed between the bottom of the lower half clamp (202) and the inner side of the bottom plate (104) of the square frame (1). A lateral shock absorber (4) is installed between each of the two sides of the upper half clamp (201) and the square frame (1), and a lateral shock absorber (4) is also installed between each of the two sides of the lower half clamp (202) and the square frame (1). A flexible shock absorber (5) is installed on the outer side of the left side plate (102) and the outer side of the right side plate (103) of the square frame (1) respectively. A rigid shock absorber (6) is installed on the outer side of the bottom plate (104) of the square frame (1).

2. The positioning device for the reference cable strand of the main cable of a suspension bridge with wind resistance performance as described in claim 1, wherein, The flexible shock absorber (5) includes a second damper (501). A second shock absorber spring (502) is sleeved on the second damper (501). The two ends of the second shock absorber spring (502) respectively abut against a long spring baffle (503). The two long spring baffles (503) are fixed at positions near the two ends of the second damper (501). One end of the second damper (501) is connected to the outer side of the left side plate (102) or the outer side of the right side plate (103) of the square frame (1) through a second connecting bolt (504). The other end of the second damper (501) is connected to a connecting plate (505) through a second connecting bolt (504). The connecting plate (505) is connected to one end of a long support rod (506) through a second connecting bolt (504). The other end of the long support rod (506) is connected to the outer side of the left side plate (102) or the outer side of the right side plate (103) of the square frame (1) through a second connecting bolt (504), so that a triangular structure is arranged among the second damper (501), the long support rod (506) and the square frame (1). A flexible steel strand (507) is also penetrated through the connecting plate (505). The flexible steel strand (507) is vertically arranged in space with the square frame (1). The two ends of the flexible steel strand (507) are respectively installed with a first shock absorber (508).

3. The positioning device for the reference cable strands of the main cable of a suspension bridge with wind resistance performance as described in claim 1, characterized in that, The described rigid shock absorber (6) includes a pair of vertically arranged third dampers (601). A third shock-absorbing spring (602) is sleeved on each of the pair of third dampers (601). One end of the third shock-absorbing spring (602) abuts against a second spring baffle (603), and the second short spring baffle (603) is fixed at a position near one end of the third damper (601); One end of each of the pair of third dampers (601) is respectively installed on the outside of the bottom plate (104) of the square frame (1). Sleeves (604) are respectively arranged at the other ends of the pair of third dampers (601). The other end of the third shock-absorbing spring (602) abuts against the sleeve (604). A rigid long rod (605) arranged horizontally is installed in the two sleeves (604); A fourth shock-absorbing spring (606) is sleeved on the described rigid long rod (605). The two ends of the fourth shock-absorbing spring (606) are respectively limited by an annular limiter (607), and the annular limiter (607) is sleeved on the rigid long rod (605); The annular limiter (607) is connected to one end of a connecting plate (609) through a third connecting bolt (608), and the other end of the connecting plate (609) is connected to one end of the third damper (601) through a third connecting bolt (608); Second shock absorbers (610) are respectively installed at the horizontal two ends of the described rigid long rod (605).

4. The positioning device for the reference cable strands of the main cable of a suspension bridge with wind resistance performance according to claim 1, characterized in that, The described vertical shock absorber (3) includes a U-shaped frame (301). The closed end of the U-shaped frame (301) is fixedly connected to the square frame (1) through a fixing bolt (302). The open end of the U-shaped frame (301) is connected to one end of two auxiliary support bolts (303) through a limit nut (304). The other ends of the two auxiliary support bolts (303) are fixedly connected to the main cable reference strand clamp (2), so that the U-shaped frame (301) can move vertically on the two auxiliary support bolts (303); A vertical shock-absorbing spring (305) is installed inside the U-shaped frame. One end of the vertical shock-absorbing spring (305) abuts against the inner side of the closed end of the U-shaped frame (301), and the other end of the vertical shock-absorbing spring (305) abuts inside a spring top cap (306). The spring top cap (306) is connected to the main cable reference strand clamp (2) through a main support bolt (307).

5. The positioning device for the reference cable strands of the main cable of a suspension bridge with wind resistance as described in claim 1, characterized in that, The described lateral shock absorber (4) includes a first damper (401). A first shock-absorbing spring (402) is sleeved on the first damper (401). The two ends of the first shock-absorbing spring (402) respectively abut against a first short spring baffle (403), and the two first short spring baffles (403) are fixed at positions near the two ends of the first damper (401); One end of the first damper (401) is connected to one end of the first pair of short connecting plates (405) through the first connecting bolt (404), and the other end of the first pair of short connecting plates (405) is connected to the square frame (1); one end of the first damper (401) is also connected to one end of the second pair of short connecting plates (405) through the first connecting bolt (404), and the other end of the second pair of short connecting plates (405) is connected to the main cable reference strand clamp (2); the other end of the first damper (401) is connected to one end of the third pair of short connecting plates (405) through the first connecting bolt (404), and the other end of the third pair of short connecting plates (405) is connected to the square frame (1); the other end of the first damper (401) is also connected to one end of the fourth pair of short connecting plates (405) through the first connecting bolt (404), and the other end of the fourth pair of short connecting plates (405) is connected to the main cable reference strand clamp (2).

6. The positioning device for the reference cable strands of the main cable of a suspension bridge with wind resistance performance as described in claim 1, characterized in that The lateral shock absorber (4) is connected to the square frame (1) through a triangular shock absorber bracket (7). The inclined plate of the triangular shock absorber bracket (7) is connected to the short connecting plate (405) of the lateral shock absorber, and the horizontal plate of the triangular shock absorber bracket (7) is connected to the square frame (1); chutes (105) are respectively formed on the inner walls of the left side plate (102) and the right side plate (103) of the square frame (1), and the vertical plates of the triangular shock absorber bracket (7) are installed in the chutes (105).

7. The positioning device for the reference cable strands of the main cable of a suspension bridge with wind resistance as described in claim 1, characterized in that, A pair of prism support frames (8) are vertically installed on the outside of the top plate (101) of the square frame (1), and prisms (9) are detachably installed on the prism support frames.

8. The positioning device for the reference cable strands of the main cable of a suspension bridge with wind resistance performance as described in claim 7, characterized in that, Multiple pairs of prism mounting holes (10) are formed on the pair of prism support frames (8).

9. A method for measuring the main cable reference strand of a suspension bridge with wind resistance, which uses the wind-resistant suspension bridge main cable reference strand positioning device according to any one of claims 1 to 8.

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