Suspension bridge anchoring system design method, suspension bridge anchoring system and suspension bridge

Abstract

The invention relates to a suspension bridge anchoring system design method, a suspension bridge anchoring system and a suspension bridge, and relates to the technical field of suspension bridges, and the suspension bridge anchoring system design method comprises the steps that based on structure parameters of anchor rods and anchor heads, the position of a set distance between the anchor head close to the narrow side of the anchor rod distance and the adjacent anchor rod is obtained; based on the position of the set distance between the anchor head close to the side with the narrower distance between the anchor rods and the adjacent anchor rods and the position of the anchoring datum plane, the maximum distance between the anchor head close to the side with the narrower distance between the anchor rods and the anchoring datum plane is obtained; the adjacent anchor heads are arranged in a staggered mode based on the maximum distance between the anchor head close to the narrow-distance side of the anchor rod and the anchoring datum plane and the position of the anchoring datum plane. Due to the fact that the adjacent anchor heads are arranged in a staggered mode, the positions of the set distance between the anchor head close to the side with the narrow distance between the anchor rods and the adjacent anchor rods are obtained based on the structure parameters of the anchor rods and the anchor heads, the anchor heads are prevented from colliding with the adjacent anchor rods, and the problem that in the prior art, the main cable erecting efficiency is affected is solved.

Description

Technical Field

[0001] This invention relates to the field of suspension bridge technology, specifically to a design method for a suspension bridge anchorage system, a suspension bridge anchorage system, and a suspension bridge. Background Technology

[0002] As a major form of long-span bridge, the main cable anchorage system of suspension bridges is a crucial element in ensuring structural safety and construction efficiency. In traditional designs, the selection of anchorage system parameters directly affects the smooth erection of the main cable. When the anchorage system parameters are not designed properly, adjacent main cable strand anchor heads are prone to collision, leading to construction interruptions, work stoppages, and serious delays in the main cable erection schedule, increasing project costs.

[0003] In the prior art, in order to prevent adjacent main cable strand anchor heads from colliding, the initial spacing of the anchor points is generally increased directly, thereby increasing the spacing between adjacent main cable strand anchor heads.

[0004] However, increasing the initial spacing of anchor points will lead to a larger front anchor face. The height of the front anchor face is often constrained by objective factors such as anchor structure and foundation conditions. When objective factors make it difficult to increase the size of the front anchor face, it is difficult to prevent collisions between adjacent main cable strand anchor heads by directly adjusting the initial spacing of anchor points, which may affect the efficiency of main cable erection. Summary of the Invention

[0005] This application provides a design method for a suspension bridge anchorage system, a suspension bridge anchorage system, and a suspension bridge. It can solve the problem that in the prior art, increasing the initial spacing of the anchor points will lead to an increase in the size of the front anchor face. The height of the front anchor face is often constrained by objective factors such as the anchor structure and foundation conditions. When objective factors restrict the size of the front anchor face from being increased, it is difficult to directly prevent collisions between adjacent main cable strand anchor heads by adjusting the initial spacing of the anchor points, which affects the efficiency of main cable erection.

[0006] In a first aspect, embodiments of this application provide a design method for a suspension bridge anchorage system, comprising: Based on the structural parameters of the anchor bolts and anchor heads, the position of the anchor head near the side with the narrower anchor bolt spacing and the distance between the adjacent anchor bolts is determined by a set distance. Based on the position of the anchor head near the narrower side of the anchor bolt spacing and the distance between the adjacent anchor bolts, and the position of the anchoring reference surface, the maximum distance between the anchor head near the narrower side of the anchor bolt spacing and the anchoring reference surface is obtained. Based on the maximum distance between the anchor head closest to the side with the narrowest anchor spacing and the anchoring reference surface, and the position of the anchoring reference surface, adjacent anchor heads are staggered.

[0007] In one embodiment, the method of staggering adjacent anchor heads based on the maximum distance between the anchor head near the narrower side of the anchor bolt spacing and the anchoring reference surface, and the position of the anchoring reference surface, includes: Based on the maximum distance between the anchor head near the narrower side of the anchor bolt spacing and the anchoring reference surface, the distance between the anchor head near the narrower side of the anchor bolt spacing and the anchoring reference surface is selected. Based on the position of the anchoring reference surface and the distance between the selected anchor head near the narrower side of the anchor bolt spacing and the anchoring reference surface, adjacent anchor heads are staggered so that the anchoring surfaces of adjacent anchor heads are located on both sides of the anchoring reference surface.

[0008] In one embodiment, if the anchor head near the narrower side of the anchor bolt spacing is located at a set distance from the adjacent anchor bolt on the side of the anchoring reference plane away from the outer end of the anchor bolt, the initial spacing of the anchor points is adjusted until the anchor head near the narrower side of the anchor bolt spacing is located at a set distance from the adjacent anchor bolt on the side of the anchoring reference plane near the outer end of the anchor bolt.

[0009] In one embodiment, during the process of selecting the distance between the anchor head near the side with the narrower anchor spacing and the anchoring reference plane: Based on the structural parameters of the anchor bolt and the magnitude of the anchor span tension, the safe range of the anchor head from the anchoring reference plane is obtained; Based on the position of the anchor head near the narrower side of the anchor bolt spacing and the distance between the anchor head and the adjacent anchor bolt, and the safe range of the anchor head from the anchoring reference surface, the distance between the anchor head near the narrower side of the anchor bolt spacing and the anchoring reference surface is selected.

[0010] In one embodiment, if the anchorage reference surface is located outside the safe range of the anchor head from the anchorage reference surface, and the selected range of the anchor head position near the narrower side of the anchor rod spacing on the side of the anchorage reference surface near the outer end of the anchor rod does not coincide with the safe range of the anchor head from the anchorage reference surface, the initial spacing of the anchor points is adjusted until the selected range of the anchor head position near the narrower side of the anchor rod spacing on the side of the anchorage reference surface near the outer end of the anchor rod partially coincides with the safe range of the anchor head from the anchorage reference surface.

[0011] In one embodiment, obtaining the position of the anchor head near the side with the narrower anchor spacing and the distance between it and the adjacent anchor head based on the structural parameters of the anchor bolt and anchor head includes: Based on the angle between the anchor bolt and the horizontal plane, the initial spacing between adjacent anchor bolts, and the position of the anchoring reference surface, the spacing between adjacent anchor bolts at the location of the anchoring reference surface is obtained. Based on the diameter of the anchor head, obtain the length of the anchor head protruding radially from the anchor rod; Based on the length of the anchor head protruding radially from the anchor rod, and the spacing between adjacent anchor rods at the location of the anchoring reference surface, the position of the anchor head near the side with the narrower anchor rod spacing and the distance between the anchor head and the adjacent anchor rod is obtained at a set distance.

[0012] In one implementation, when obtaining the distance between the anchor head and the adjacent anchor rod: Establish a coordinate system at the anchor point; Based on the coordinates of the lower edge of the anchor head and the corresponding coordinates of the adjacent anchor rods, the distance between the anchor head and the adjacent anchor rods is obtained.

[0013] In one implementation, when setting the initial spacing of the anchor points: The initial spacing of the anchor points is set based on the diameter of the connecting plate, the installation allowance, and construction errors.

[0014] Secondly, this application also provides a suspension bridge anchorage system, which is constructed using the above-described suspension bridge anchorage system design method.

[0015] Thirdly, embodiments of this application also provide a suspension bridge, which includes the aforementioned suspension bridge anchoring system.

[0016] The beneficial effects of the technical solutions provided in this application include: When using this suspension bridge anchorage system design method, firstly, based on the structural parameters of the anchor bolts and anchor heads, the position of the anchor head near the narrower anchor bolt spacing and the distance between it and the adjacent anchor bolt is determined. Then, based on the position of the anchor head near the narrower anchor bolt spacing and the distance between it and the adjacent anchor bolt, as well as the position of the anchorage reference plane, the maximum distance between the anchor head near the narrower anchor bolt spacing and the anchorage reference plane is determined. Finally, based on the maximum distance between the anchor head near the narrower anchor bolt spacing and the anchorage reference plane, as well as the position of the anchorage reference plane, adjacent anchor heads are staggered. Because adjacent anchor heads are staggered, and based on the structural parameters of the anchor rods and anchor heads, the position of the anchor head near the side with the narrower anchor rod spacing is determined with respect to the distance between it and the adjacent anchor rod. This prevents the anchor head from colliding with the adjacent anchor rod. This solves the problem in the prior art where increasing the initial spacing of the anchor points would lead to an increase in the size of the front anchor surface. The height of the front anchor surface is often constrained by objective factors such as the anchor structure and foundation conditions. When objective factors make it difficult to increase the size of the front anchor surface, it is difficult to directly prevent collisions between adjacent main cable strand anchor heads by adjusting the initial spacing of the anchor points, which affects the efficiency of main cable erection. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a partial structural schematic diagram of an embodiment of a suspension bridge anchorage system according to the present invention.

[0019] Figure 2 This is a schematic diagram of the anchor head arrangement in an embodiment of a suspension bridge anchoring system according to the present invention.

[0020] Figure 3 This is a schematic diagram of the anchor head arrangement in an embodiment of the original suspension bridge anchoring system.

[0021] Figure 4 This is a schematic diagram of an embodiment of a suspension bridge anchorage system according to the present invention.

[0022] In the diagram: 1. Cable strand; 2. Anchor head; 3. Anchor bolt; 4. Anchor point; 5. Connecting plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0024] This application provides a design method for a suspension bridge anchorage system, a suspension bridge anchorage system, and a suspension bridge. It can solve the problem that in the prior art, increasing the initial spacing of the anchor points will lead to an increase in the size of the front anchor surface. The height of the front anchor surface is often constrained by objective factors such as the anchor structure and foundation conditions. When objective factors restrict the size of the front anchor surface from being increased, it is difficult to directly prevent collisions between adjacent main cable strand anchor heads by adjusting the initial spacing of the anchor points, which affects the efficiency of main cable erection.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, this application provides a design method for a suspension bridge anchorage system, which includes: Based on the structural parameters of anchor bolt 3 and anchor head 2, the position of anchor head 2 near the side with narrower spacing of anchor bolt 3 and the distance between the anchor head 2 and the adjacent anchor bolt 3 is obtained at a set distance. Based on the position of the anchor head 2 on the side with narrower spacing of anchor rod 3 and the distance between the anchor head 2 and the adjacent anchor rod 3, and the position of the anchoring reference surface, the maximum distance between the anchor head 2 on the side with narrower spacing of anchor rod 3 and the anchoring reference surface is obtained. Based on the maximum spacing between the anchor head 2 on the side with the narrower spacing of the anchor rod 3 and the anchoring reference surface, and the position of the anchoring reference surface, adjacent anchor heads 2 are staggered.

[0026] When using this suspension bridge anchorage system design method, firstly, based on the structural parameters of the anchor rods 3 and anchor heads 2, the position of the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the distance between it and the adjacent anchor rod 3 is determined by setting a distance. Then, based on the position of the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the distance between it and the adjacent anchor rod 3, as well as the position of the anchorage reference surface, the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchorage reference surface is determined. Finally, based on the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchorage reference surface, as well as the position of the anchorage reference surface, adjacent anchor heads 2 are staggered. Because the adjacent anchor heads 2 are staggered, and based on the structural parameters of the anchor rods 3 and anchor heads 2, the position of the anchor head 2 closest to the narrower spacing of the anchor rods 3 and the distance between the anchor head 2 and the adjacent anchor rod 3 is determined by setting a distance, thus preventing the anchor head 2 from colliding with the adjacent anchor rod 3. This solves the problem in the prior art where increasing the initial spacing of the anchor points would lead to an increase in the size of the front anchor surface. The height of the front anchor surface is often constrained by objective factors such as the anchor structure and foundation conditions. When objective factors restrict the size of the front anchor surface from increasing, it is difficult to directly prevent the collision of adjacent main cable strand anchor heads by adjusting the initial spacing of the anchor points, which affects the efficiency of main cable erection.

[0027] In some optional embodiments, the staggered arrangement of adjacent anchor heads 2 based on the maximum distance between the anchor head 2 on the side closer to the narrower spacing of the anchor bolt 3 and the anchoring reference plane, and the position of the anchoring reference plane, includes: Based on the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchoring reference surface, the distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchoring reference surface is selected. Based on the location of the anchorage reference plane and the distance between the anchor head 2, which is closer to the side with a narrower spacing of the anchor rod 3, and the anchorage reference plane, adjacent anchor heads 2 are staggered so that the anchorage surfaces of adjacent anchor heads 2 are located on both sides of the anchorage reference plane.

[0028] In this embodiment, based on the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchoring reference surface, and the position of the anchoring reference surface, adjacent anchor heads 2 are staggered. Specifically, this includes: selecting the distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchoring reference surface based on the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3; and staggering the adjacent anchor heads 2 based on the position of the anchoring reference surface and the selected distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3, so that the anchoring surfaces of adjacent anchor heads 2 are located on both sides of the anchoring reference surface. The anchoring surfaces of adjacent anchor heads 2 are located on both sides of the anchoring reference plane, which improves the stability of the anchoring and prevents the anchor head 2 from colliding with the adjacent anchor rod 3. This solves the problem in the prior art where increasing the initial spacing of the anchor points would lead to an increase in the size of the front anchor surface. The height of the front anchor surface is often constrained by objective factors such as the anchor structure and foundation conditions. When objective factors restrict the size of the front anchor surface from increasing, it is difficult to directly prevent the collision of adjacent main cable strand anchor heads by adjusting the initial spacing of the anchor points, which affects the efficiency of main cable erection.

[0029] In this example, the anchoring surfaces of adjacent anchor heads 2 are located on both sides of the anchoring reference plane, and are equidistant from the anchoring reference plane.

[0030] In some optional embodiments, if the anchor head 2 near the narrower side of the anchor rod 3 is located at a distance of a set distance from the adjacent anchor rod 3 on the side of the anchoring reference plane away from the outer end of the anchor rod 3, the initial spacing of the anchor points 4 is adjusted until the anchor head 2 near the narrower side of the anchor rod 3 is located at a distance of a set distance from the adjacent anchor rod 3 on the side of the anchoring reference plane near the outer end of the anchor rod 3.

[0031] In this embodiment, if the anchor head 2 near the narrower side of the anchor rod 3 is located at a predetermined distance from the adjacent anchor rod 3 on the anchoring reference plane away from the outer end of the anchor rod 3, the initial spacing of the anchor points 4 is adjusted until the anchor head 2 near the narrower side of the anchor rod 3 is located at a predetermined distance from the adjacent anchor rod 3 on the anchoring reference plane near the outer end of the anchor rod 3. This prevents adjacent anchor heads 2 from all being located on the anchoring reference plane away from the outer end of the anchor rod 3, which would affect the anchoring effect.

[0032] In this example, the anchoring reference plane can be a reference plane that ensures the anchoring effect.

[0033] In some optional embodiments, during the process of selecting the distance between the anchor head 2, which is closer to the side with the narrower spacing of the anchor bolts 3, and the anchoring reference plane: Based on the structural parameters of anchor rod 3 and the magnitude of anchor span tension, the safe range of anchor head 2 from the anchoring reference plane is obtained. Based on the position of the anchor head 2 near the narrower side of the anchor rod 3 and the distance between the anchor head 2 and the adjacent anchor rod 3, and the safe range of the anchor head 2 from the anchoring reference surface, the distance between the anchor head 2 near the narrower side of the anchor rod 3 and the anchoring reference surface is selected.

[0034] In this embodiment, when selecting the distance between the anchor head 2 (closer to the side with narrower spacing between anchor rods 3) and the anchoring reference plane: based on the structural parameters of the anchor rods 3 and the magnitude of the anchor span tension, a safe range between the anchor head 2 and the anchoring reference plane is obtained; based on the position of the anchor head 2 (closer to the side with narrower spacing between anchor rods 3) and the distance between the anchor head 2 and the adjacent anchor rods 3 at a set distance, and the safe range between the anchor head 2 and the anchoring reference plane, the distance between the anchor head 2 (closer to the side with narrower spacing between anchor rods 3) and the anchoring reference plane is selected. By further limiting the distance between the anchor head 2 (closer to the side with narrower spacing between anchor rods 3) and the anchoring reference plane through the safe range between the anchor head 2 and the anchoring reference plane, the safety of the anchoring is ensured while preventing the anchor head 2 from colliding with the adjacent anchor rods 3, thus jointly limiting and ensuring the stability of the anchoring system.

[0035] In some optional embodiments, if the anchor reference surface is located outside the safe range of the anchor head 2 from the anchor reference surface, and the selected range of the anchor head 2 on the side of the anchor reference surface near the outer end of the anchor rod 3 does not coincide with the safe range of the anchor head 2 from the anchor reference surface, the initial spacing of the anchor points 4 is adjusted until the selected range of the anchor head 2 on the side of the anchor reference surface near the outer end of the anchor rod 3 partially coincides with the safe range of the anchor head 2 from the anchor reference surface.

[0036] In this embodiment, if the anchoring reference surface is located outside the safe range of the anchor head 2 from the anchoring reference surface, and the selected range of the anchor head 2 on the side of the anchoring reference surface near the outer end of the anchor rod 3 does not coincide with the safe range of the anchor head 2 from the anchoring reference surface, the initial spacing of the anchor points 4 is adjusted until the selected range of the anchor head 2 on the side of the anchoring reference surface near the outer end of the anchor rod 3 near the narrower spacing of the anchor rod 3 partially coincides with the safe range of the anchor head 2 from the anchoring reference surface. If the safe range of anchor head 2 from the anchoring reference plane is two intervals on both sides of the anchoring reference plane, and the position of anchor head 2 near the narrower side of the anchor rod 3 and the adjacent anchor rod 3 at the set distance is between the two intervals, then the initial spacing of anchor point 4 needs to be adjusted so that the position of anchor head 2 near the narrower side of the anchor rod 3 and the adjacent anchor rod 3 at the set distance is within the interval outside the anchoring reference plane. This ensures that a suitable distance can be selected between anchor head 2 near the narrower side of the anchor rod 3 and the anchoring reference plane. The safe range of anchor head 2 from the anchoring reference plane further limits the distance between anchor head 2 near the narrower side of the anchor rod 3 and the anchoring reference plane. While ensuring the effect of preventing anchor head 2 from colliding with the adjacent anchor rod 3, the safety of anchoring is guaranteed, and the stability of the anchoring system is jointly limited.

[0037] In some optional embodiments, the method of obtaining the position of the anchor head 2, which is closer to the side with a narrower spacing between the anchor bolts 3 and the adjacent anchor bolt 3, based on the structural parameters of the anchor bolts 3 and the anchor head 2, includes: Based on the angle between anchor rod 3 and the horizontal plane, the initial spacing between adjacent anchor rods 3, and the position of the anchoring reference plane, the spacing between adjacent anchor rods 3 at the position of the anchoring reference plane is obtained. Based on the diameter of anchor head 2, obtain the length of anchor head 2 protruding radially from anchor rod 3; Based on the length of the anchor head 2 protruding radially from the anchor rod 3, and the distance between the anchor rods 3 and the adjacent anchor rods 3 at the location of the anchor reference surface, the position of the anchor head 2 near the side with the narrower distance between the anchor rods 3 and the adjacent anchor rod 3 is obtained at a set distance.

[0038] In this embodiment, based on the structural parameters of the anchor bolts 3 and anchor heads 2, the position of the anchor head 2 near the narrower side of the anchor bolt spacing and the distance between it and the adjacent anchor bolt 3 is obtained. Specifically, this includes: obtaining the distance between the anchor head 2 and the adjacent anchor bolt 3 at the location of the anchoring reference surface based on the angle between each anchor bolt 3 and the horizontal plane, the initial distance between adjacent anchor bolts 3, and the position of the anchoring reference surface; obtaining the length of the anchor head 2 protruding radially from the anchor bolt 3 based on the diameter of the anchor head 2; and obtaining the position of the anchor head 2 near the narrower side of the anchor bolt spacing and the distance between it and the adjacent anchor bolt 3 based on the length of the anchor head 2 protruding radially from the anchor bolt 3 and the distance between the anchor head 2 and the adjacent anchor bolt 3 at the location of the anchoring reference surface. By using the distance between the anchor head 2 and the adjacent anchor bolt 3 at the location of the anchoring reference surface and the length of the anchor head 2 protruding radially from the anchor bolt 3, the position of the anchor head 2 near the narrower side of the anchor bolt spacing and the distance between it and the adjacent anchor bolt 3 can be quickly located, which is convenient for use.

[0039] In some optional embodiments, when obtaining the distance between the anchor head 2 and the adjacent anchor rod 3: Establish a coordinate system at anchor point 4; Based on the coordinates of the lower edge of anchor head 2 and the coordinates of the corresponding points of adjacent anchor rod 3, the distance between anchor head 2 and adjacent anchor rod 3 is obtained.

[0040] In this embodiment, when obtaining the distance between the anchor head 2 and the adjacent anchor rod 3: a coordinate system is established at any anchor point 4, and the distance between the anchor head 2 and the adjacent anchor rod 3 is obtained based on the coordinates of the lower edge of the anchor head 2 and the corresponding point coordinates of the adjacent anchor rod 3. Calculating the distance between the anchor head 2 and the adjacent anchor rod 3 using coordinates is faster and yields more accurate results.

[0041] In some optional embodiments, when setting the initial spacing of anchor points 4: Based on the diameter of the connecting plate 5, the reserved installation distance, and the construction error, the initial spacing of the anchor points 4 is set.

[0042] In this embodiment, when setting the initial spacing of anchor points 4: based on the diameter of the connecting plate 5, the installation allowance, and the construction error, the initial spacing of anchor points 4 is set to ensure that the initial spacing of anchor points 4 can meet the requirements of the connecting plate 5, guarantee the initial stability of the anchoring system, and provide a foundation for subsequent construction.

[0043] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this application also provides a suspension bridge anchorage system, which is constructed using the above-mentioned suspension bridge anchorage system design method.

[0044] When using this suspension bridge anchorage system design method, firstly, based on the structural parameters of the anchor rods 3 and anchor heads 2, the position of the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the distance between it and the adjacent anchor rod 3 is determined by setting a distance. Then, based on the position of the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the distance between it and the adjacent anchor rod 3, as well as the position of the anchorage reference surface, the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchorage reference surface is determined. Finally, based on the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchorage reference surface, as well as the position of the anchorage reference surface, adjacent anchor heads 2 are staggered. Because the adjacent anchor heads 2 are staggered, and based on the structural parameters of the anchor rods 3 and anchor heads 2, the position of the anchor head 2 closest to the narrower spacing of the anchor rods 3 and the distance between the anchor head 2 and the adjacent anchor rod 3 is determined by setting a distance, thus preventing the anchor head 2 from colliding with the adjacent anchor rod 3. This solves the problem in the prior art where increasing the initial spacing of the anchor points would lead to an increase in the size of the front anchor surface. The height of the front anchor surface is often constrained by objective factors such as the anchor structure and foundation conditions. When objective factors restrict the size of the front anchor surface from increasing, it is difficult to directly prevent the collision of adjacent main cable strand anchor heads by adjusting the initial spacing of the anchor points, which affects the efficiency of main cable erection.

[0045] In this example, anchor head 2 is connected to cable strand 1.

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, on the other hand, this application also provides a suspension bridge that includes the aforementioned suspension bridge anchoring system.

[0047] When using this suspension bridge anchorage system design method, firstly, based on the structural parameters of the anchor rods 3 and anchor heads 2, the position of the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the distance between it and the adjacent anchor rod 3 is determined by setting a distance. Then, based on the position of the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the distance between it and the adjacent anchor rod 3, as well as the position of the anchorage reference surface, the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchorage reference surface is determined. Finally, based on the maximum distance between the anchor head 2 on the side with the narrower spacing of the anchor rods 3 and the anchorage reference surface, as well as the position of the anchorage reference surface, adjacent anchor heads 2 are staggered. Because the adjacent anchor heads 2 are staggered, and based on the structural parameters of the anchor rods 3 and anchor heads 2, the position of the anchor head 2 closest to the narrower spacing of the anchor rods 3 and the distance between the anchor head 2 and the adjacent anchor rod 3 is determined by setting a distance, thus preventing the anchor head 2 from colliding with the adjacent anchor rod 3. This solves the problem in the prior art where increasing the initial spacing of the anchor points would lead to an increase in the size of the front anchor surface. The height of the front anchor surface is often constrained by objective factors such as the anchor structure and foundation conditions. When objective factors restrict the size of the front anchor surface from increasing, it is difficult to directly prevent the collision of adjacent main cable strand anchor heads by adjusting the initial spacing of the anchor points, which affects the efficiency of main cable erection.

[0048] 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.

[0049] 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.

[0050] 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 design method for a suspension bridge anchorage system, characterized in that, include: Based on the structural parameters of the anchor rod (3) and the anchor head (2), the position of the anchor head (2) near the narrower side of the anchor rod (3) and the adjacent anchor rod (3) is obtained at a set distance; Based on the position of the anchor head (2) near the narrower side of the anchor rod (3) and the distance between the anchor head (2) and the adjacent anchor rod (3) and the position of the anchoring reference surface, the maximum distance between the anchor head (2) near the narrower side of the anchor rod (3) and the anchoring reference surface is obtained. Based on the maximum distance between the anchor head (2) on the side with the narrower spacing of the anchor rod (3) and the anchoring reference surface, and the position of the anchoring reference surface, adjacent anchor heads (2) are staggered.

2. The design method for a suspension bridge anchorage system as described in claim 1, characterized in that, The method of staggering adjacent anchor heads (2) based on the maximum distance between the anchor head (2) on the side with the narrower spacing of the anchor rod (3) and the anchoring reference surface, and the position of the anchoring reference surface, includes: Based on the maximum distance between the anchor head (2) on the side with the narrower spacing of the anchor rod (3) and the anchoring reference surface, the distance between the anchor head (2) on the side with the narrower spacing of the anchor rod (3) and the anchoring reference surface is selected; Based on the position of the anchoring reference surface and the distance between the selected anchor head (2) closer to the narrower side of the anchor rod (3) and the anchoring reference surface, adjacent anchor heads (2) are staggered so that the anchoring surfaces of adjacent anchor heads (2) are located on both sides of the anchoring reference surface.

3. The design method for a suspension bridge anchorage system as described in claim 2, characterized in that, If the anchor head (2) near the narrower side of the anchor rod (3) is located at a distance of a set distance from the adjacent anchor rod (3) on the side of the anchoring reference plane away from the outer end of the anchor rod (3), adjust the initial spacing of the anchor point (4) until the anchor head (2) near the narrower side of the anchor rod (3) is located at a distance of a set distance from the adjacent anchor rod (3) on the side of the anchoring reference plane near the outer end of the anchor rod (3).

4. The design method for a suspension bridge anchorage system as described in claim 2, characterized in that, In the process of selecting the distance between the anchor head (2) and the anchoring reference plane on the side with the narrower spacing of the anchor rods (3): Based on the structural parameters of the anchor rod (3) and the magnitude of the anchor span tension, the safe range of the anchor head (2) from the anchoring reference plane is obtained; Based on the position of the anchor head (2) on the side with the narrower spacing of the anchor rods (3) and the distance between the anchor head (2) and the adjacent anchor rods (3) and the safe range of the anchor head (2) from the anchoring reference surface, the distance between the anchor head (2) on the side with the narrower spacing of the anchor rods (3) and the anchoring reference surface is selected.

5. The design method for a suspension bridge anchorage system as described in claim 4, characterized in that, If the anchor reference surface is located outside the safe range of the anchor head (2) from the anchor reference surface, and the selected range of the anchor head (2) near the narrower side of the anchor rod (3) on the side of the anchor reference surface near the outer end of the anchor rod (3) does not coincide with the safe range of the anchor head (2) from the anchor reference surface, adjust the initial spacing of the anchor points (4) until the selected range of the anchor head (2) near the narrower side of the anchor rod (3) on the side of the anchor reference surface near the outer end of the anchor rod (3) partially coincides with the safe range of the anchor head (2) from the anchor reference surface.

6. The design method for a suspension bridge anchorage system as described in claim 1, characterized in that, The method of obtaining the position of the anchor head (2) at a set distance from the adjacent anchor head (3) based on the structural parameters of the anchor rod (3) and the anchor head (2) includes: Based on the angle between the anchor rod (3) and the horizontal plane, the initial spacing between adjacent anchor rods (3), and the position of the anchoring reference surface, the spacing between adjacent anchor rods (3) at the position of the anchoring reference surface is obtained. Based on the diameter of the anchor head (2), the length of the anchor head (2) protruding radially from the anchor rod (3) is obtained; Based on the length of the anchor head (2) protruding radially from the anchor rod (3) and the distance between the anchor head (2) and the adjacent anchor rod (3) at the location of the anchoring reference surface, the position of the anchor head (2) near the side with the narrower distance between the anchor rod (3) and the adjacent anchor rod (3) is obtained at a set distance.

7. The design method for a suspension bridge anchorage system as described in claim 6, characterized in that, When obtaining the distance between the anchor head (2) and the adjacent anchor rod (3): Establish a coordinate system at anchor point (4); Based on the coordinates of the lower edge of the anchor head (2) and the corresponding coordinates of the adjacent anchor rods (3), the distance between the anchor head (2) and the adjacent anchor rods (3) is obtained.

8. The design method for a suspension bridge anchorage system as described in claim 1, characterized in that, When setting the initial spacing of anchor points (4): Based on the diameter of the connecting plate (5), the installation allowance, and the construction error, the initial spacing of the anchor points (4) is set.

9. A suspension bridge anchorage system, characterized in that, The suspension bridge is constructed using a design method for an anchorage system as described in any one of claims 1-8.

10. A suspension bridge, characterized in that, Including a suspension bridge anchorage system as described in claim 9.

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