Combined main cable saddle for space cable suspension bridge

Abstract

The utility model discloses a combined main cable saddle for a space cable suspension bridge, which relates to a main cable saddle for a suspension bridge and is provided with a first saddle body and a second saddle body. Bolt through holes are formed in a first transverse rib plate, adjacent to the second saddle body, of the first saddle body; bolt through holes are formed in a second transverse rib plate, adjacent to the first saddle body, of the second saddle body; the first transverse rib plates and the second transverse rib plates with the bolt through holes are in a one-to-one correspondence matching relationship; middle connecting plates are arranged between the first transverse rib plates and the second transverse rib plates which are matched in a one-to-one correspondence mode, and a plurality of holes corresponding to bolt penetrating holes in the first transverse rib plates and the second transverse rib plates are formed in the middle connecting plates. The middle connecting plate is fixedly connected with the first transverse rib plate and the second transverse rib plate through a plurality of locking bolts, and the first saddle body and the second saddle body are connected into a whole. The utility model is convenient to process and install, and is beneficial to improving the stress rigidity and stability of the structure.

Description

Technical Field

[0001] This utility model relates to a main cable saddle for suspension bridges, specifically, to a combined main cable saddle for a space cable suspension bridge. Background Technology

[0002] In the design of long-span bridges, suspension bridges are widely adopted due to their simple structure, clear force distribution, low unit cost, and aesthetically pleasing appearance. Generally, a suspension bridge bears the dynamic and static loads of the bridge through two parallel or nearly parallel main cables supported and turned by the main tower. However, when factors such as limited space for the main cable anchorages, other technical requirements for bridge stiffness, and overall aesthetic design requirements arise during suspension bridge construction, it is necessary to adjust the load-bearing main cables along the length of the suspension bridge. In addition to a parabolic turn in the vertical direction (i.e., the height direction of the suspension bridge), a certain amount of arc-shaped offset turn is required in the horizontal direction (i.e., the width direction of the suspension bridge). This results in the two main cables supported and turned by the main tower being non-parallel, with each main cable arranged along three dimensions: length, height, and width. This type of suspension bridge is commonly referred to in the industry as a space cable suspension bridge.

[0003] In the structure of a spatial cable-stayed bridge, the support and steering of the main cable by the main tower are achieved through the main cable saddle fixed at the top of the main tower. Due to the unique arrangement of the main cable in the length, height, and width dimensions of a spatial cable-stayed bridge, the main cable saddle needs to guide and steer the main cable in these three dimensions. This requires the saddle groove on the saddle head to guide the main cable in the length direction of the suspension bridge, steer it in the height direction of the suspension bridge, and steer it in the width direction of the suspension bridge.

[0004] In the prior art, Chinese patent literature discloses a technology entitled "A Main Cable Saddle for a Space Cable Suspension Bridge," publication number CN107587425A, published on January 16, 2018. In this technology, two independent saddle bodies are connected by a central first sub-plate via rectangular flanges and bolts. The technical problem with this technology is:

[0005] First, due to the large structural dimensions of the main cable saddle, it is impossible to machine the saddle groove and bottom plane as a whole after combining the two saddle bodies with the first sub-plate. The only option is to manufacture the two saddle bodies separately and then connect and assemble them on the construction site using the first sub-plate. When connecting the two saddle bodies, the bolts need to pass through the rectangular flange. Since the saddle bodies are machined separately, the bolt holes on the second sub-plate of the two saddle bodies and the bolt holes on the first sub-plate cannot be matched one-to-one. Therefore, the only option is to use on-site drilling, which is extremely difficult to operate.

[0006] Secondly, according to the bolt connection methods specified in the "Design Code for Highway Steel Structure Bridges", they can be divided into ordinary bolt connections and high-strength bolt connections. Among them, high-strength bolt friction type connections should be used for the main load-bearing structures; ordinary bolt connections can be used for secondary components, structural connections and temporary connections. The connection between the two saddle bodies above is obviously an important structural connection, but the connection method here does not comply with the technical standards.

[0007] Third, the horizontal component force generated by the two saddle bodies will increase the difficulty of bolt tightening, indicating that it is difficult to operate and install, resulting in low assembly efficiency. The bolts are prone to loosening when subjected to the horizontal component force, resulting in poor stress rigidity, which in turn affects the stability and safety of the structure. Utility Model Content

[0008] The technical objective of this utility model is to provide a combined main cable saddle for a space cable suspension bridge that is easy to process and install and has good load-bearing rigidity, in view of the special characteristics of the aforementioned space cable suspension bridge and the shortcomings of the existing technology.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A composite main cable saddle for a space cable suspension bridge, comprising a first saddle body and a second saddle body;

[0011] The first saddle body has an acute angle between the center plane of the saddle groove width and the vertical plane, and the saddle body of the first saddle body has multiple first transverse ribs arranged at intervals along the longitudinal direction.

[0012] The center plane of the saddle groove of the second saddle body forms an acute angle with the vertical plane, and the saddle body of the second saddle body has multiple second transverse ribs arranged at intervals along the longitudinal direction.

[0013] In a suspension bridge structure, the first saddle and the second saddle are adjacent to each other and side by side.

[0014] The saddle body of the first saddle body is adjacent to the first transverse rib of the second saddle body, and several bolt holes are arranged there;

[0015] The saddle body of the second saddle body is adjacent to the second transverse rib of the first saddle body, and several bolt holes are arranged there.

[0016] The first saddle body and the second saddle body are arranged side by side through the approach of the first transverse rib plate and the second transverse rib plate with bolt holes, and the first transverse rib plate and the second transverse rib plate with bolt holes are in a one-to-one corresponding fit relationship.

[0017] An intermediate connecting plate is arranged between the first transverse rib and the second transverse rib, which are in a one-to-one correspondence. One side of the intermediate connecting plate is formed with several holes corresponding to the bolt holes on the first transverse rib, and the other side of the intermediate connecting plate is formed with several holes corresponding to the bolt holes on the second transverse rib.

[0018] The intermediate connecting plate is fixedly connected to the first transverse rib plate by several locking bolts, and the intermediate connecting plate is fixedly connected to the second transverse rib plate by several locking bolts, connecting the first saddle body and the second saddle body into a whole. The center plane of the saddle groove width of the first saddle body and the center plane of the saddle groove width of the second saddle body form an acute angle.

[0019] In the above-mentioned technical measures, the first saddle body and the second saddle body are connected as a whole by the first transverse ribs with bolt holes and the second transverse ribs, through the intermediate connecting plate and locking bolts. The operation is simple, easy to process and install, and conducive to improving the stress rigidity and stability of the structure. The center plane of the saddle groove width of the first saddle body and the center plane of the saddle groove width of the second saddle body form an acute angle, which can better adapt to the arrangement requirements and is conducive to improving stability and load-bearing capacity.

[0020] Furthermore, the first transverse rib forms multiple relatively independent bolt hole distribution areas in the height direction;

[0021] The bolt hole distribution structure on the second transverse rib is the same as that on the first transverse rib.

[0022] The intermediate connecting plate is provided corresponding to the same bolt hole distribution area between the first transverse rib and the second transverse rib;

[0023] At the junction of the first transverse rib and the second transverse rib, there are multiple intermediate connecting plates along the height direction.

[0024] The above-mentioned technical measures enhance the connection reliability and stability of the first transverse rib and the second transverse rib by setting multiple bolt hole distribution areas and corresponding intermediate connecting plates.

[0025] Furthermore, in the same bolt hole distribution area between the first transverse rib and the second transverse rib, there are two intermediate connecting plates connected by two intermediate connecting plates arranged on the front and rear sides of the joint between the first transverse rib and the second transverse rib.

[0026] The above-mentioned technical measures connect two intermediate connecting plates in the same bolt hole distribution area between the first and second transverse ribs, which are respectively arranged on the front and rear sides of the joint between the first and second transverse ribs, thereby enhancing the connection strength and stability of the first and second transverse ribs.

[0027] Furthermore, a manhole is provided at the junction of the first transverse rib and the second transverse rib, connecting the front and rear sides, and the manhole avoids the bolt hole distribution area.

[0028] The above-mentioned technical measures facilitate the operation of personnel by opening a manhole at the junction of the first and second transverse ribs, thereby improving convenience. The location of the manhole avoids the bolt hole distribution area, thus preventing any impact on the stability of the connection.

[0029] Furthermore, the bolt holes on the first transverse rib are arranged in a rectangular array structure with multiple rows and columns.

[0030] The aforementioned technical measures, through bolt holes arranged in a multi-row, multi-column rectangular array structure, can distribute the load, reduce stress concentration at individual connection points, improve connection stability, and enhance structural strength.

[0031] Furthermore, the bolt holes on the second transverse rib are arranged in a rectangular array structure with multiple rows and columns.

[0032] The aforementioned technical measures, through bolt holes arranged in a multi-row, multi-column rectangular array structure, can distribute the load, reduce stress concentration at individual connection points, improve connection stability, and enhance structural strength.

[0033] Furthermore, the saddle body of the first saddle is a welded steel plate structure, having a bottom plate, longitudinal ribs arranged vertically along the longitudinal direction of the saddle head, and multiple transverse ribs spaced apart on the left and right sides of the longitudinal ribs along the length of the saddle head.

[0034] In the above-mentioned technical measures, the saddle body of the first saddle is a welded steel plate structure with a bottom plate, longitudinal ribs and transverse ribs, which can improve the stability and strength of the overall structure.

[0035] Furthermore, the saddle body of the second saddle is a welded steel plate structure, having a bottom plate, longitudinal ribs arranged vertically along the longitudinal direction of the saddle head, and multiple transverse ribs spaced apart on the left and right sides of the longitudinal ribs along the length of the saddle head.

[0036] The second saddle body of the aforementioned technical measures is a welded steel plate structure with a bottom plate, longitudinal ribs and transverse ribs, which can improve the stability and strength of the overall structure.

[0037] Furthermore, the first saddle body and the second saddle body, which are connected as a whole, are arranged on the same base.

[0038] The above-mentioned technical measures simplify the installation process and improve assembly efficiency by arranging the first and second saddle bodies, which are connected as a whole, on the same base.

[0039] One or more technical solutions provided by this utility model have at least the following technical effects or advantages:

[0040] In this invention, the first saddle body and the second saddle body are connected as a whole by first transverse ribs with bolt holes and second transverse ribs, through an intermediate connecting plate and locking bolts. This makes the operation simple, easy to process and install, and helps to improve the structural rigidity and stability. The center plane of the saddle groove width of the first saddle body and the center plane of the saddle groove width of the second saddle body form an acute angle, which can better adapt to the arrangement requirements and help to improve stability and load-bearing capacity. Attached Figure Description

[0041] The accompanying drawings, which are provided to further illustrate the embodiments of the present invention and constitute a part of the present invention, do not constitute a limitation thereof.

[0042] Figure 1 This is a structural schematic diagram of the combined main cable saddle for the space cable suspension bridge in this utility model;

[0043] Figure 2 yes Figure 1 The diagram shows the structure of the main cable saddle at the bifurcation plane.

[0044] Wherein, 1-first saddle body; 2-second saddle body; 3-first transverse rib; 4-second transverse rib; 5-intermediate connecting plate; 6-manhole; 7-base. Detailed Implementation

[0045] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of this utility model and the features within them can be combined with each other.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0047] Example 1

[0048] Reference Figure 1-2This embodiment provides a combined main cable saddle for a space cable suspension bridge, which has a first saddle body 1 and a second saddle body 2;

[0049] The first saddle body 1 includes a saddle head and a saddle body. The saddle head is a cast steel structure with a saddle groove that is concave along the longitudinal direction of the bridge and curved at the bottom, serving as a support for the main cable. The saddle body of the first saddle body 1 is a welded steel plate structure, having a base plate, longitudinal ribs arranged vertically along the longitudinal direction of the saddle head, and multiple transverse ribs (i.e., the first transverse ribs 3) spaced apart on the left and right sides of the longitudinal ribs along the length of the saddle head.

[0050] The second saddle body 2 includes a saddle head and a saddle body. The saddle head is a cast steel structure with a saddle groove that is concave along the longitudinal direction of the bridge and curved at the bottom, serving as a support for the main cable. The saddle body of the second saddle body 2 is a welded steel plate structure, having a base plate, longitudinal ribs arranged vertically along the longitudinal direction of the saddle head, and multiple transverse ribs (i.e., second transverse ribs 4) spaced apart on the left and right sides of the longitudinal ribs along the length of the saddle head.

[0051] When the first saddle body 1 is placed horizontally, the center plane of the saddle groove width of the first saddle body 1 forms an acute angle with the vertical plane, and the longitudinal ribs that make up the saddle body of the first saddle body 1 basically coincide with the center of the saddle groove width of the saddle head.

[0052] When the second saddle body 2 is placed horizontally, the center plane of the saddle groove width of the second saddle body 2 forms an acute angle with the vertical plane, and the longitudinal ribs that make up the saddle body of the second saddle body 2 basically coincide with the center of the saddle groove width of the saddle head.

[0053] In the suspension bridge structure, the first saddle 1 and the second saddle 2 are adjacent to each other;

[0054] The saddle body of the first saddle body 1 is adjacent to the first transverse rib plate 3 of the second saddle body 2, and has several bolt holes arranged thereon; the bolt holes on the first transverse rib plate 3 are arranged in a rectangular array structure with multiple rows and columns.

[0055] The saddle body of the second saddle body 2 is adjacent to the second transverse rib plate 4 of the first saddle body 1, and has several bolt holes arranged thereon; the bolt holes on the second transverse rib plate 4 are arranged in a rectangular array structure with multiple rows and columns.

[0056] The number of bolt holes is set according to actual needs, and this embodiment does not impose a specific limit.

[0057] The first saddle body 1 and the second saddle body 2 are arranged side by side through the approach of the first transverse rib plate 3 and the second transverse rib plate 4 with bolt holes, and the first transverse rib plate 3 and the second transverse rib plate 4 with bolt holes are in a one-to-one corresponding fit relationship.

[0058] An intermediate connecting plate 5 is arranged between the first transverse rib 3 and the second transverse rib 4, which are in a one-to-one correspondence. One side of the intermediate connecting plate 5 is formed with several holes corresponding to the bolt holes on the first transverse rib 3, and the other side of the intermediate connecting plate 5 is formed with several holes corresponding to the bolt holes on the second transverse rib 4.

[0059] The intermediate connecting plate 5 is fixedly connected to the first transverse rib plate 3 by several locking bolts, and the intermediate connecting plate 5 is fixedly connected to the second transverse rib plate 4 by several locking bolts, connecting the first saddle body 1 and the second saddle body 2 into a whole. The first saddle body 1 and the second saddle body 2, which are connected as a whole, are arranged on the same base 7. The center plane of the saddle groove width of the first saddle body 1 and the center plane of the saddle groove width of the second saddle body 2 form an acute angle.

[0060] The first transverse rib 3 forms multiple relatively independent bolt hole distribution areas in the height direction;

[0061] The number of bolt hole distribution areas is set based on the length of the first transverse rib 3, such as... Figure 1-2 As shown, there are two bolt hole distribution areas on the first transverse rib plate 3 located at both ends of the longitudinal direction of the first saddle body 1, and three bolt hole distribution areas on the first transverse rib plate 3 located in the middle region of the longitudinal direction of the first saddle body 1.

[0062] The bolt hole distribution structure on the second transverse rib 4 is the same as the bolt hole distribution structure on the first transverse rib 3.

[0063] The intermediate connecting plate 5 is provided corresponding to the same bolt hole distribution area between the first transverse rib 3 and the second transverse rib 4.

[0064] At the junction of the first transverse rib 3 and the second transverse rib 4, there are multiple intermediate connecting plates 5 along the height direction.

[0065] The same bolt hole distribution area between the first transverse rib 3 and the second transverse rib 4 is connected to two intermediate connecting plates 5, which are arranged on the front and rear sides of the joint between the first transverse rib 3 and the second transverse rib 4.

[0066] At the junction of the first transverse rib 3 and the second transverse rib 4, a manhole 6 is provided to connect the front and rear sides, and the manhole 6 avoids the bolt hole distribution area.

[0067] During installation, the first saddle body 1 and the second saddle body 2 are arranged adjacent to each other, so that each first transverse rib 3 and each second transverse rib 4 with bolt holes corresponds one-to-one. The intermediate connecting plate 5 is placed between the first transverse rib 3 and the corresponding second transverse rib 4, so that the holes on the intermediate connecting plate 5 correspond to the bolt holes on the first transverse rib 3 and the corresponding second transverse rib 4. The operator enters the interior through the manhole 6 and sequentially inserts the locking bolts into the holes on the intermediate connecting plate 5 and the bolt holes on the corresponding first transverse rib 3 and second transverse rib 4 to complete the installation.

[0068] Example 2

[0069] The rest of the content of this embodiment is the same as that of embodiment 1, except that:

[0070] The first transverse rib 3 forms a bolt hole distribution area in the height direction;

[0071] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0072] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A composite main cable saddle for a spatial cable suspension bridge, comprising a first saddle body (1) and a second saddle body (2). The center plane of the saddle groove of the first saddle body (1) forms an acute angle with the vertical plane, and the saddle body of the first saddle body (1) has multiple first transverse ribs (3) arranged at intervals along the longitudinal direction. The center plane of the saddle groove of the second saddle body (2) forms an acute angle with the vertical plane, and the saddle body of the second saddle body (2) has multiple second transverse ribs (4) spaced along the longitudinal direction. In the suspension bridge structure, the first saddle (1) and the second saddle (2) are adjacent to each other and side by side; Its features are: The saddle body of the first saddle body (1) is adjacent to the first transverse rib plate (3) of the second saddle body (2), and several bolt holes are arranged there. The saddle body of the second saddle (2) is adjacent to the second transverse rib (4) of the first saddle (1), and has several bolt holes arranged thereon; The first saddle body (1) and the second saddle body (2) are arranged side by side through the approach of the first transverse rib (3) and the second transverse rib (4) with bolt holes, and the first transverse rib (3) and the second transverse rib (4) with bolt holes are in a one-to-one corresponding relationship. An intermediate connecting plate (5) is arranged between the first transverse rib (3) and the second transverse rib (4) which have a one-to-one matching relationship. One side of the intermediate connecting plate (5) is formed with several holes corresponding to the bolt holes on the first transverse rib (3), and the other side of the intermediate connecting plate (5) is formed with several holes corresponding to the bolt holes on the second transverse rib (4). The intermediate connecting plate (5) is fixedly connected to the first transverse rib (3) by several locking bolts, and the intermediate connecting plate (5) is fixedly connected to the second transverse rib (4) by several locking bolts, connecting the first saddle body (1) and the second saddle body (2) into a whole. The center plane of the saddle groove width of the first saddle body (1) and the center plane of the saddle groove width of the second saddle body (2) form an acute angle.

2. The composite main cable saddle for a space cable suspension bridge according to claim 1, characterized in that: The first transverse rib (3) forms multiple relatively independent bolt hole distribution areas in the height direction; The bolt hole distribution structure on the second transverse rib (4) is the same as the bolt hole distribution structure on the first transverse rib (3); The intermediate connecting plate (5) is provided corresponding to the same bolt hole distribution area between the first transverse rib (3) and the second transverse rib (4); At the junction of the first transverse rib (3) and the second transverse rib (4), there are multiple intermediate connecting plates (5) along the height direction.

3. The composite main cable saddle for a space cable suspension bridge according to claim 2, characterized in that: The same bolt hole distribution area between the first transverse rib (3) and the second transverse rib (4) is connected by two intermediate connecting plates (5), which are arranged on the front and rear sides of the joint between the first transverse rib (3) and the second transverse rib (4).

4. The combined main cable saddle for a space cable suspension bridge according to claim 2 or 3, characterized in that: At the junction of the first transverse rib (3) and the second transverse rib (4), a manhole (6) is provided to connect the front and rear sides, and the manhole (6) avoids the bolt hole distribution area.

5. The combined main cable saddle for a spatial cable suspension bridge according to claim 1, 2, or 3, characterized in that: The bolt holes on the first transverse rib (3) are arranged in a rectangular array structure with multiple rows and columns.

6. The composite main cable saddle for a spatial cable suspension bridge according to claim 1, 2, or 3, characterized in that: The bolt holes on the second transverse rib (4) are arranged in a rectangular array structure with multiple rows and columns.

7. The composite main cable saddle for a space cable suspension bridge according to claim 1, characterized in that: The saddle body of the first saddle (1) is a welded steel plate structure, with a bottom plate, longitudinal ribs arranged vertically along the longitudinal direction of the saddle head, and multiple transverse ribs arranged at intervals on the left and right sides of the longitudinal ribs along the length direction of the saddle head.

8. The composite main cable saddle for a space cable suspension bridge according to claim 1, characterized in that: The saddle body of the second saddle (2) is a welded steel plate structure, with a bottom plate, longitudinal ribs arranged vertically along the longitudinal direction of the saddle head, and multiple transverse ribs arranged at intervals on the left and right sides of the longitudinal ribs along the length direction of the saddle head.

9. The composite main cable saddle for a space cable suspension bridge according to claim 1, characterized in that: The first saddle body (1) and the second saddle body (2), which are connected as a whole, are arranged on the same base (7).

Images