Bridge laminated cable structure and suspension bridge

Abstract

The embodiments of the present application disclose a bridge laminated cable structure and a suspension bridge, which relate to the field of bridge engineering technology and solve the problems of large material consumption and high cost in the construction of suspension bridges in related technologies. The bridge laminated cable structure includes a tower, multiple cables and multiple connectors. The tower is arranged in the extension direction of the bridge body; the cable is erected on the tower, and both ends of the cable are used to connect the bridge body. The connection part between the cable and the bridge body is a first connection part, and multiple first connection parts are arranged in sequence along the extension direction of the bridge body; multiple connectors are arranged in sequence along the extension direction of the bridge body, and the first end of the connector is used to connect the bridge body, and the second end of the connector is fixedly connected to the cable close to the bridge body among the multiple cables in its extension direction. The bridge laminated cable structure of the present application is used to support the bridge body in a suspension bridge.

Description

Technical Field

[0001] The embodiments of the present application relate to, but are not limited to, the field of bridge engineering, and in particular to a bridge laminated cable structure and a suspension bridge. Background Art

[0002] A suspension bridge, also known as a drawbridge, is a bridge structure whose primary load-bearing components are the main cables. Suspension bridges are the preferred bridge type for spans of 600m or longer. This is primarily due to the fact that, with high-strength steel wire as the primary tensile structure, suspension bridges offer large spans, reasonable load distribution, optimal utilization of material strength, and economical construction costs. They are also highly regarded for their sleek, aesthetically pleasing overall design and safe, fast construction. The load on the span is borne by stiffening beams and transmitted to the cables via suspenders. The tension of the main cables is transmitted to the foundation and subgrade through pressure on the pylons and tension in the anchor structure. This fully utilizes the tensile properties of the high-strength steel cables, resulting in a lightweight structure that can span exceptionally large spans at a reduced height, unmatched by any other bridge type.

[0003] There are three types of suspension bridges: classic suspension bridges, Disinger suspension bridges and Stanman suspension bridges. Suspension bridges usually include main cables, suspenders, inclined cables and other structures. For example, a suspension bridge includes a left tower foundation, a right tower foundation and a stiffening beam. The stiffening beam is arranged on the upper part of the left tower foundation and the right tower foundation; the stiffening beam is provided with a left anchor and a right anchor, and the left anchor and the right anchor bear the tension of the main cable; the main cable is connected to the bridge tower, and the bridge tower is vertically fixed on the stiffening beam, and the main cable is used to bear vertical pressure; a saddle is provided on the bridge tower, and the main cable is connected to the saddle; a sling is also connected between the main cable and the stiffening beam, and the sling is used to suspend the stiffening beam; a cable clamp is also provided on the main cable; the stiffening beam adopts the support form of a span continuous stiffening beam; the main cable and the stiffening beam are provided with a mid-span inclined cable at the mid-span position, and an end inclined cable is provided at the end position.

[0004] In the above-mentioned suspension bridge, there is a large distance between the main cable and the suspenders, and many suspenders usually need to be arranged along the direction of the bridge body, which requires a large number of long suspenders, resulting in a large amount of material used for the suspenders and high cost. In addition, the longer suspenders are also heavier, and the strength requirements for the main cables and suspenders also become higher. Therefore, designing a bridge cable structure with less cable consumption and low cost has become an urgent problem to be solved in the construction of suspension bridges. Summary of the Invention

[0005] The bridge stacked cable structure and suspension bridge provided by the embodiments of the present application have the advantages of small cable usage and low cost.

[0006] In the first aspect, an embodiment of the present application provides a stacked cable structure for a bridge, comprising a tower, a plurality of cables and a plurality of connectors, wherein the tower is arranged in the extension direction of the bridge body; the cable is erected on the tower, and both ends of the cable are used to connect to the bridge body, and the connection portion between the cable and the bridge body is a first connection portion, and a plurality of first connection portions are arranged in sequence along the extension direction of the bridge body; a plurality of connectors are arranged in sequence along the extension direction of the bridge body, the first end of the connector is used to connect to the bridge body, and the second end of the connector is fixedly connected to a cable close to the bridge body among the plurality of cables in its extension direction.

[0007] The embodiment of the present application provides a stacked cable structure for a bridge, in which a tower provides support for the cable, the middle part of the cable is erected on the tower, and both ends of the cable are connected to the bridge body. Since multiple cables are provided, a layered cable structure is formed, and the connection parts between the multiple cables and the bridge body, that is, the first connection parts, are arranged in sequence along the extension direction of the bridge body, so that the first connection parts are generally arranged in the extension direction of the bridge body. At this time, multiple connecting members are arranged in sequence along the extension direction of the bridge body, and the first end of the connecting member is used to connect the bridge body to achieve universal support for the bridge body. The connecting member is fixedly connected to the cable close to the bridge body among the multiple cables in its extension direction, that is, the connecting member is fixedly connected to the cable closest to it, so that the length of the connecting member is shorter, thereby saving material; in addition, when multiple cables are provided, when the required bearing strength is the same The conditions are small, and the cross-sectional area of ​​each cable can also be smaller, so that the sum of the cross-sectional areas of multiple cables is equal to the cross-sectional area of ​​a single cable. At this time, since multiple cables are arranged in layers, the closer the cable is to the bridge body, the shorter its length is. After calculation, it can be seen that under the same load-bearing conditions, multiple cables with smaller cross-sectional areas are smaller in volume than a single cable, that is, less material is required, thereby further saving materials and reducing costs. Compared with the solution of setting only one cable in the related technology, the bridge stacked cable structure of the present application reduces the length of the connecting parts and the cross-sectional area of ​​the cables by setting multiple layered cables, which can effectively save materials and reduce costs. At the same time, due to the reduction in material used in the connecting parts and cables, the self-weight of the two is also smaller, and the required strength requirements are also lower.

[0008] In a possible implementation of the present application, the two first connecting portions of the cable are symmetrically distributed with respect to the towers to which they are connected.

[0009] In a possible implementation of the present application, the plurality of first connection portions are evenly spaced apart along the extension direction of the bridge body.

[0010] In a possible implementation of the present application, the connection portion between the cable and the tower is a second connection portion, and a plurality of second connection portions are sequentially arranged along the extension direction of the cable.

[0011] In a possible implementation of the present application, the plurality of second connection portions are evenly spaced apart along the extension direction of the cable.

[0012] In a possible implementation of the present application, the multiple cables include main cables and auxiliary cables, the two ends of the main cables are used to fix the anchors connecting the two ends of the bridge body, and the two ends of the auxiliary cables are used to fix the stiffening beams in the bridge body.

[0013] In a possible implementation of the present application, multiple cables and multiple connectors are divided into two cable groups, the two cable groups are arranged on both sides of the bridge body, and the multiple cables and multiple connectors in the same cable group are all located on the same vertical plane.

[0014] In a possible implementation of the present application, an extension piece is further included. The extension piece is fixed to the second end of the connector, and the two extend in the same direction. The extension piece is fixed to at least one cable in its extending direction.

[0015] In a possible implementation of the present application, the cables closest to the bridge body are bottom cables, and multiple inclined cables are arranged below the bottom cables. The first ends of the inclined cables are fixed to the cable towers, and the second ends of the inclined cables are used to connect to the bridge body.

[0016] In a possible implementation of the present application, projections of the plurality of cables on a vertical plane are distributed in layers, and the cables have three layers in total.

[0017] In a second aspect, an embodiment of the present application provides a suspension bridge, comprising a bridge body and the bridge laminated cable structure according to any one of the first aspects, wherein the bridge laminated cable structure is used to support the bridge body.

[0018] The suspension bridge provided in the embodiment of the present application has the same technical effect as the bridge stacked cable structure of the first aspect. That is, compared with the solution of setting only one cable in the related technology, the bridge stacked cable structure of the present application reduces the length of the connecting parts by setting multiple layered cables, and also reduces the cross-sectional area of ​​the cables, which can effectively save materials and reduce costs. At the same time, since the material used in the connecting parts and cables is reduced, the self-weight of the two is also smaller, and the required strength requirements are also lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a classic suspension bridge;

[0020] Figure 2 This is a structural diagram of the Disinger type suspension bridge;

[0021] Figure 3 This is a structural diagram of a Stangate suspension bridge;

[0022] Figure 4 This is a schematic diagram of the structure of the improved suspension bridge of Stanmen;

[0023] Figure 5 A schematic structural diagram of a suspension bridge provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the connection of the combined connector in the suspension bridge provided in the embodiment of the present application;

[0025] Figure 7 A schematic diagram of the structure of the inclined cables in the suspension bridge provided in the embodiment of the present application;

[0026] Figure 8 A schematic structural diagram of the combined connector provided in an embodiment of the present application.

[0027] Reference numerals:

[0028] 1-bridge body; 11-anchor; 12-stiffening beam; 2-bridge laminated cable structure; 21-tower; 22-cable; 221-main cable; 222-auxiliary cable; 223-bottom cable; 23-connector; 231-first locking clamp; 232-first connecting rod; 24-stayed cable; 25-extension member; 251-second locking clamp; 252-second connecting rod; x-bridge body extension direction; y-tower extension direction. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but should not be used to limit the scope of the present application.

[0030] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more.

[0031] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to changes in the orientation of the components in the drawings.

[0032] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0033] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0034] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0035] The embodiments of the present application provide a suspension bridge, which is a structure used to be erected on rivers to allow vehicles, pedestrians, etc. to pass smoothly. In addition, to adapt to the modern high-speed development of the transportation industry, suspension bridges can also be erected in mountain streams, in places with poor geology, or for other transportation needs. A suspension bridge is a bridge with cables (or steel chains) suspended by towers and anchored on both sides (or both ends of the bridge) as the main load-bearing components of the upper structure. The cables hang down many hangers to suspend the bridge deck, and stiffening beams are often set between the bridge deck and the hangers to form a combined system with the cables to reduce the deflection deformation caused by the load.

[0036] The suspension bridge in the related art has the classic form of suspension bridge (refer to Figure 1 ), Disinger type suspension bridge (refer to Figure 2 ) and Stangate suspension bridge (refer to Figure 3 and Figure 4 ), both the Disinger type suspension bridge and the Stanman type suspension bridge use cable-stayed cables to improve the classic suspension bridge in an attempt to increase the spanning capacity of the suspension bridge or improve the performance of the suspension bridge, but the structure is more complicated and the construction is difficult. In addition, the classic type suspension bridge, the Disinger type suspension bridge and the Stanman type suspension bridge are all equipped with a main cable 221, so that there is a large distance between the main cable 221 and the connector 23, and a large number of long connectors 23 are required, which results in the connector 23 being made of large materials and high cost, and the longer connector 23 is also heavier in weight, and the strength requirements for the main cable 221 and the connector 23 are also higher. The suspension bridge provided in the embodiment of the present application can solve these problems.

[0037] Reference Figure 5 、 Figure 6 and Figure 7The suspension bridge provided in the embodiment of the present application includes a bridge body 1 and a bridge laminated cable structure 2, and the bridge laminated cable structure 2 is used to support the bridge body 1.

[0038] On this basis, the embodiment of the present application also provides a bridge laminated cable structure 2, referring to Figure 5 、 Figure 6 and Figure 7 The bridge stacked cable structure 2 includes a tower 21, multiple cables 22 and multiple connectors 23. The tower 21 is arranged in the extension direction of the bridge body 1; the cable 22 is erected on the tower 21, and both ends of the cable 22 are used to connect to the bridge body 1. The connection part between the cable 22 and the bridge body 1 is the first connection part, and multiple first connection parts are arranged in sequence along the extension direction of the bridge body 1; multiple connectors 23 are arranged in sequence along the extension direction of the bridge body 1, and the first end of the connector 23 is used to connect to the bridge body 1, and the second end of the connector 23 is fixedly connected to the cable 22 close to the bridge body 1 among the multiple cables 22 in its extension direction.

[0039] The embodiment of the present application provides a stacked cable structure 2 for a bridge, in which a tower 21 provides support for the cables 22. The middle part of the cables 22 is erected on the tower 21, and both ends of the cables 22 are connected to the bridge body 1. Since a plurality of cables 22 are provided, the projections of the plurality of cables 22 on the vertical plane are distributed in layers, forming a layered cable 22 structure. The connection parts between the plurality of cables 22 and the bridge body 1, namely the first connection parts, are sequentially arranged along the extension direction of the bridge body 1, so that the first connection parts are generally arranged in the extension direction of the bridge body 1. At this time, a plurality of connectors 23 are sequentially arranged along the extension direction of the bridge body 1. The first end of the connector 23 is used to connect the bridge body 1 to achieve universal support for the bridge body 1. The connector 23 is fixedly connected to the cable 22 close to the bridge body 1 among the plurality of cables 22 in its extension direction, that is, the connector 23 is fixedly connected to the cable 22 closest to it, so that the length of the connector 23 is shorter, thereby saving materials.

[0040] In addition, when multiple cables 22 are set, under the condition that the required bearing strength is the same, the cross-sectional area of ​​each cable 22 can also be smaller, so that the sum of the cross-sectional areas of the multiple cables 22 is equal to the cross-sectional area of ​​a single cable 22. At this time, since the multiple cables 22 are arranged in layers, the closer the cable 22 is to the bridge body 1, the shorter the length. After calculation, it can be seen that under the same bearing conditions, multiple cables 22 with smaller cross-sectional areas are smaller in volume than a single cable 22, that is, less material is required, thereby further saving materials and reducing costs.

[0041] For example, assuming the cross-section of the main cable 221 of a classic suspension bridge is A (disregarding the cable's own weight), after switching to the laminated cable structure of the bridge in this application, the sum of the cross-sectional areas of the cables 22 is set to the same as the cross-sectional area of ​​a single cable. For a three-layer cable, the cross-sectional area of ​​the first layer is A1, the cross-sectional area of ​​the second layer is A2, and the cross-sectional area of ​​the third layer is A3. The sum A1 + A2 + A3 = A. Assuming the lengths of the three layers are L1, L2, and L3, respectively, their volumes (and therefore weights) are related as follows.

[0042] Cable volume of a classic suspension bridge:

[0043] L1×A;

[0044] Cable volume of the suspension bridge in this application:

[0045] L1×A1+L2×A2+L3×A3;

[0046] The difference in cable volume between a classic suspension bridge and the suspension bridge in this application is:

[0047] L1×A-(L1×A1+L2×A2+L3×A3)

[0048] =L1×(A1+A2+A3)-(L1×A1+L2×A2+L3×A3)

[0049] =(L1-L2)×A2+(L1-L3)×A3

[0050] Because the length of the first-layer main cable is absolutely greater than that of the second and third-layer main cables, the cable volume of the classic suspension bridge minus the cable volume of the suspension bridge in the present application is a positive value. In other words, the cable usage of the suspension bridge in the present application is less than that of the classic suspension bridge. Without considering the influence of the cable's own weight, the saving amount is:

[0051] γ×((L1-L2)×A2+(L1-L3)×A3)

[0052] where γ is the density of the cable.

[0053] Taking a suspension bridge with a span of 2,400 meters as an example, the cable 22 of the classic suspension bridge weighs 84,788 tons, while the cable 22 of the suspension bridge in this application weighs 73,496 tons. The cable 22 of the suspension bridge in this application weighs 11,000 tons less, a reduction of 13.3%. It can be seen that its economy is very objective. At the same time, the axial force of the anchor cable 22 is also reduced accordingly, and the connection is more reliable.

[0054] It should be noted that the present application does not impose any restrictions on the form of the cable tower 21. For example, the cable tower 21 may be single-column, double-column, gate-type, slanted-leg gate-type, inverted V-shaped, inverted Y-shaped, A-shaped, etc. The cross-section of the cable tower 21 may be a solid section or a hollow section according to the design requirements. When the cross-sectional size is large, an I-shaped or box-shaped section may be adopted. When the span is large, a box-shaped section may be adopted optionally. At the same time, the present application does not impose any restrictions on the number of cable towers 21. Depending on the span of the bridge body 1, the cable tower 21 may be one, two or more.

[0055] In addition, the present application does not limit the connection method between the cable 22 and the tower 21. For example, in one possible implementation method of the present application, the cable 22 is cast in the tower 21; in another possible implementation method of the present application, the cable 22 is fixed to the tower 21 through a saddle.

[0056] It should be noted that the present application does not impose any restrictions on the arrangement of the cables 22. For example, in one possible implementation of the present application, multiple cables 22 are arranged in the same vertical plane, and the plane is the center plane of the bridge body 1. At this time, the projection of the connector 23 on the cross section of the bridge body 1 is arranged at an angle; in another possible implementation of the present application, multiple cables 22 are divided into two groups with the same structure, and the two groups of cables 22 are arranged on both sides of the bridge body 1, and multiple cables 22 in the same group of cables 22 are located on the same vertical plane. At this time, the connector 23 can be arranged vertically.

[0057] Accordingly, the present application does not impose any restrictions on the arrangement of the connector 23. For example, the connector 23 is vertically arranged, the connector 23 is inclined with respect to the axial section of the bridge body 1, the connector 23 is inclined with respect to the cross-section of the bridge body 1, and any form in which the projection of the connector 23 on the axial section of the bridge body 1 is not interlaced is within the scope of protection of the present application. Among them, the vertical arrangement of the connector 23 has the shortest length and saves the most material, and the vertical tension applied to the bridge body 1 is more conducive to supporting the bridge body 1.

[0058] In addition, in order to make the force on the tower 21 more reasonable, refer to Figure 5 、 Figure 6 and Figure 7 In one possible implementation of the present application, the two first connection portions of the cable 22 are symmetrically distributed about the tower 21 to which they are connected, so that the pressure exerted by the cable 22 on both sides of the tower 21 is equal, thereby reducing the possibility of damage caused by uneven force on both sides of the tower 21.

[0059] In order to make the force on the bridge body 1 more balanced, refer to Figure 5 、 Figure 6 and Figure 7 In one possible implementation of the present application, a plurality of first connection portions are evenly spaced along the extension direction of the bridge body 1 .

[0060] It should be noted that there are various arrangements of the cables 22 on the tower 21. For example, in one possible implementation of the present application, multiple cables 22 are arranged at the same height of the tower 21. In order to further reduce the length of the cables 22 and save materials, Figure 5 、 Figure 6 and Figure 7 In another possible implementation of the present application, the connection portion between the cable 22 and the tower 21 is a second connection portion, and multiple second connection portions are arranged in sequence along the extension direction of the cable 22. Compared with multiple second connection portions being located at the same height, the sequential arrangement of the second connection portions further reduces the material of the cable 22, and also avoids applying force to the same point of the tower 21, thereby enhancing the bearing capacity of the tower 21.

[0061] In order to make the force on Tower 21 more reasonable, refer to Figure 5 、 Figure 6 and Figure 7 In one possible implementation of the present application, a plurality of second connection portions are evenly spaced along the extension direction of the cable 22 .

[0062] It should be noted that the present application does not limit the fixing method of the end of the cable 22. For example, the end of the cable 22 can be fixed to the anchor 11, and the end of the cable 22 can also be fixed to the stiffening beam 12. Figure 5 、 Figure 6 and Figure 7 In one possible implementation of the present application, the multiple cables 22 include a main cable 221 and an auxiliary cable 222. The two ends of the main cable 221 are used to fix the anchors 11 connecting the two ends of the bridge body 1, and the two ends of the auxiliary cable 222 are used to fix the stiffening beams 12 in the bridge body 1. Among the multiple cables 22, the one located on the outermost side, that is, away from the bridge body 1, is the main cable 221, and the remaining cables 22 are auxiliary cables 222.

[0063] In order to make the force on the bridge body 1 more reasonable, for example, in a possible implementation of the present application, multiple cables 22 and multiple connectors 23 are divided into two cable groups, that is, the two cable groups contain the same number of cables 22 and connectors 23, the two cable groups have the same structure, the two cable groups are arranged on both sides of the bridge body 1, and the multiple cables 22 and multiple connectors 23 in the same cable group are all located on the same vertical plane, the vertically arranged connectors 23 apply vertical tension to the bridge body 1, avoiding the bridge body 1 from being subjected to components of force in other directions, in addition, compared with the inclined connectors 23, the vertically arranged connectors 23 are further reduced in length when connected to cables 22 at the same height, further saving materials and reducing costs.

[0064] It should be noted that this application does not limit the number of cables 22 connected to the connector 23. Figure 6 and Figure 7 In a possible implementation of the present application, an extension piece 25 is further included. The extension piece 25 is fixed to the second end of the connecting piece 23, and the two extend in the same direction. The extension piece 25 is fixed to at least one cable 22 in its extension direction. The present application does not limit the number and position of the connecting pieces 23. For example, when the connecting piece 23 is set at the end of the cable 22 and the length is too short, the extension piece 25 is connected thereto for fixing with more cables 22.

[0065] The present application does not limit the form of the connecting member 23 and the extension member 25. For example, the connecting member 23 and the extension member 25 may be a boom, a sling, etc. Figure 8 In a possible implementation of the present application, the connector 23 and the extension member 25 are hangers. Specifically, the connector 23 and the extension member 25 both include a locking clamp and a connecting rod. The locking clamp is arranged at the end of the connecting rod. The locking clamp is used to be fixed to the cable 22, and the lower end of the connecting rod is used to connect the locking clamp or the bridge body 1.

[0066] When the extension piece 25 is provided, a plurality of locking clips and connecting rods are sequentially spaced apart. Figure 8 In a possible implementation of the present application, the connecting member 23 includes a first locking clamp 231, which is used to fix the cable located on the lower side of the two cables 22. The lower side of the first locking clamp 231 is connected to the first connecting rod 232. The lower side of the first connecting rod 232 is connected to the bridge body 1. The extension member 25 includes a second connecting rod 252 and a second locking clamp 251. The second locking clamp 251 is used to fix the cable located on the upper side of the two cables 22. The second locking clamp 251 and the first locking clamp 231 are connected via the second connecting rod 252.

[0067] Among them, this application does not limit the form of the locking clamp, the fixing method of the locking clamp and the connecting rod, and the connection method of the connecting rod and the bridge body 1.

[0068] It should be noted that the bridge body 1 can also be supported by inclined cables 24 in this application. Figure 7 In a possible implementation of the present application, the cables 22 among the multiple cables 22 are close to the bridge body 1 and are bottom cables 223. A plurality of inclined cables 24 are arranged below the bottom cables 223. The first ends of the inclined cables 24 are fixed to the tower 21, and the second ends of the inclined cables 24 are used to connect to the bridge body 1.

[0069] In addition, the present application does not limit the number of cables 22. For example, there are three, eight, etc. cables 22. Figure 5 、 Figure 6 and Figure 7In a possible implementation of the present application, there are three layers of cables 22, and the three layers of cables 22 are located at different heights. It should be noted that the present application does not limit the number of cables 22 in each cable layer 22. For example, there is one cable 22 in each cable layer 22, and there are three cables 22 in total. The three cables 22 are all located on the same vertical plane. For another example, there are two cables 22 in each cable layer 22, and there are six cables 22 in total. The six cables 22 are grouped into three groups, and the two groups of cables 22 are located on both sides of the bridge body 1. The three cables 22 in each group of cables 22 are all located on the same vertical plane.

[0070] The bridge stacked cable structure 2 and suspension bridge provided in the embodiments of the present application reduce the length of the connecting member 23 and the cross-sectional area of ​​the cable 22 by setting a plurality of layered cables 22, which can effectively save materials and reduce costs. At the same time, due to the reduction in material used in the connecting member 23 and the cable 22, the self-weight of the two is also smaller, and the required strength requirements are also lower.

[0071] The serial numbers of the embodiments of this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only preferred embodiments of this application and do not limit the scope of the patent of this application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the scope of patent protection of this application.

Claims

1. A bridge laminated cable structure, characterized in that: include: Cable towers are set in the extension direction of the bridge body; a plurality of cables, each of which is mounted on the pylon, with both ends of the cables being used to connect to the bridge body, wherein the connection between the cables and the bridge body is a first connection portion, and a plurality of the first connection portions are sequentially arranged along the extension direction of the bridge body; A plurality of connectors are sequentially arranged along the extension direction of the bridge body, wherein the first end of the connector is used to connect the bridge body, and the second end of the connector is fixedly connected to the cable close to the bridge body among the plurality of cables in the extension direction thereof.

2. The bridge laminated cable structure according to claim 1, characterized in that: The two first connecting portions of the cable are symmetrically distributed about the tower to which they are connected.

3. The bridge laminated cable structure according to claim 2, characterized in that: The plurality of first connection portions are evenly spaced along the extension direction of the bridge body.

4. The bridge laminated cable structure according to claim 1, characterized in that: The connection portion between the cable and the tower is a second connection portion, and a plurality of second connection portions are sequentially arranged along the extending direction of the cable.

5. The bridge laminated cable structure according to claim 4, characterized in that: The plurality of second connection portions are evenly spaced apart along the extending direction of the cable.

6. The bridge laminated cable structure according to claim 1, characterized in that: The multiple cables include main cables and auxiliary cables. Both ends of the main cables are used to fix the anchors connecting the two ends of the bridge body, and both ends of the auxiliary cables are used to fix the stiffening beams in the bridge body.

7. The bridge laminated cable structure according to claim 1, characterized in that: The plurality of cables and the plurality of connectors are divided into two cable groups, the two cable groups are arranged on both sides of the bridge body, and the plurality of cables and the plurality of connectors in the same cable group are located on the same vertical plane.

8. The bridge laminated cable structure according to claim 7, characterized in that: It also includes an extension piece, which is fixed to the second end of the connecting piece, and the two extend in the same direction. The extension piece is fixed to at least one of the cables in its extending direction.

9. The bridge laminated cable structure according to claim 1, characterized in that: Among the multiple cables, the one closest to the bridge body is the bottom cable, and multiple inclined cables are arranged below the bottom cable. The first end of the inclined cable is fixed to the cable tower, and the second end of the inclined cable is used to connect to the bridge body.

10. The bridge laminated cable structure according to claim 1, characterized in that: Projections of the plurality of cables on a vertical plane are distributed in layers, and the cables have three layers in total.

11. A suspension bridge, characterized in that: include: bridge; The laminated cable structure for bridge according to any one of claims 1 to 10, wherein the laminated cable structure for bridge is used to support the bridge body.

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