Protective shed for main cable of suspension bridge

Abstract

The utility model discloses a suspension bridge main cable protective shed, and relates to the technical field of bridge engineering. The suspension bridge main cable protective shed comprises a tunnel anchor and a main cable connected with the tunnel anchor. A first stand column assembly and a second stand column assembly are sequentially connected to the portion, on the front side of the tunnel anchor, of the foundation in the direction away from the tunnel anchor, the tops of the first stand column assembly and the second stand column assembly are connected with a shed roof located over the main cable, and one end of the shed roof is connected with the tunnel anchor. The ceiling is installed over the main cable through the first stand column assembly and the second stand column assembly, the ceiling is used for protecting the main cable on the front side of the tunnel anchor, the situation that flying rocks generated in the process of removing dangerous rocks and accumulation bodies on a mountain are splashed to the main cable to damage the main cable is avoided, and the safety of the main cable is improved; compared with an existing protective net, the protective shed is higher in strength and can effectively resist impact of large flying rocks.

Description

Technical Field

[0001] The present application relates to the technical field of bridge engineering, and in particular to a main cable protection shed for a suspension bridge. Background Art

[0002] In bridge engineering, suspension bridges are widely used to span wide waterways or deep valleys due to their large spans and beautiful structures. The main cables of suspension bridges are their key load-bearing components, and their safety is directly related to the stability and service life of the entire bridge.

[0003] Construction activities near suspension bridges, such as tunneling, can pose a potential safety threat to the main cables. This is especially true at tunnel exits, where the removal of dangerous rock and debris from the mountain can generate large amounts of flying rocks, which can potentially impact the main cables of the suspension bridge.

[0004] Existing protection measures for the main cables of suspension bridges typically include protective nets. However, these nets may be insufficiently strong to withstand the impact of large flying rocks or easily damaged in severe weather conditions. Therefore, in the unique situation where tunnel projects are adjacent to suspension bridges, protective nets often fail to provide adequate protection for the main cables. Utility Model Content

[0005] The purpose of this application is to provide a suspension bridge main cable protection shed to solve the problem that the protection net cannot effectively resist the impact of large flying rocks.

[0006] The technical solution adopted by this application to solve its technical problems is:

[0007] A protective shed for the main cable of a suspension bridge comprises a tunnel anchor and a main cable connected to the tunnel anchor; a first column assembly and a second column assembly are sequentially connected to the foundation on the front side of the tunnel anchor in a direction away from the tunnel anchor; the tops of the first column assembly and the second column assembly are connected to a shed roof located directly above the main cable, and one end of the shed roof is connected to the tunnel anchor.

[0008] Furthermore, the roof includes a horizontal section and an inclined section connected to the horizontal section, the two ends of the horizontal section are respectively connected to the tunnel anchor and the first column assembly, and the two ends of the inclined section are respectively connected to the first column assembly and the second column assembly.

[0009] Furthermore, the roof includes a supporting frame and a protective plate connected above the supporting frame, and the supporting frame is connected to the top of the first column assembly and the second column assembly.

[0010] Furthermore, the support frame includes two main distribution beams arranged in parallel and a plurality of secondary distribution beams connected between the two main distribution beams. The two main distribution beams are respectively arranged on both sides of the main cable and connected to the top of the first column assembly and the second column assembly.

[0011] Furthermore, the protective plate includes a protective steel plate and a protective wooden board connected above the protective steel plate, and the protective steel plate is connected to the supporting frame.

[0012] Furthermore, sandbags are laid on the top of the tunnel anchor.

[0013] Furthermore, the first column assembly includes two first columns connected together, and the two first columns are respectively arranged on both sides of the main cable.

[0014] Furthermore, the lower end of the first column is connected to the foundation through a first anchor bar.

[0015] Furthermore, the second column assembly includes four second columns connected together, wherein two of the second columns are arranged on one side of the main cable, and the other two of the second columns are arranged on the other side of the main cable.

[0016] Furthermore, the lower end of the second column is connected to the foundation through a second anchor bar.

[0017] Beneficial effects of this application:

[0018] The main cable protection shed for a suspension bridge provided in an embodiment of the present application installs the shed roof directly above the main cable through a first column assembly and a second column assembly, and then uses the shed roof to protect the main cable in front of the tunnel anchor, thereby preventing flying rocks generated in the process of clearing dangerous rocks and accumulations on the mountain from splashing onto the main cable and damaging the main cable, thereby improving the safety of the main cable; compared with existing protective nets, the protective shed of the present application is stronger, can effectively withstand the impact of larger flying rocks, is not easily damaged in bad weather, and can provide sufficient protection for the main cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic structural diagram of a main cable protection shed for a suspension bridge provided in an embodiment of the present application;

[0021] Figure 2 yes Figure 1 A partial enlarged view of the connection between the middle roof and the first column assembly and the second column assembly;

[0022] Figure 3 is a top view of the connection between the support frame and the first column assembly and the second column assembly;

[0023] Figure 4 It is a structural diagram of the protective plate;

[0024] Figure 5 It is a structural diagram of the connection between the first column and the foundation;

[0025] Figure 6 It is a structural diagram of the connection between the second column and the foundation.

[0026] Reference numerals:

[0027] 1-Tunnel anchor;

[0028] 2- Main cable;

[0029] 3- Foundation;

[0030] 4-first column assembly;

[0031] 41-first pillar;

[0032] 5-Second column assembly;

[0033] 51- second pillar;

[0034] 6- Roof;

[0035] 61-horizontal segment;

[0036] 62- inclined segment;

[0037] 63-support frame;

[0038] 631-main distribution beam;

[0039] 632-secondary distribution beam;

[0040] 64-protective plate;

[0041] 641-Protective steel plate;

[0042] 642-Protective wooden planks;

[0043] 7-Sandbag;

[0044] 8-first anchor bar;

[0045] 81-first concrete layer;

[0046] 9-Second anchor bar;

[0047] 91-Second concrete layer;

[0048] 10-Mountain. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0050] It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In addition, the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict.

[0051] In the description of the embodiments of the present application, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. The terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, and an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0052] See also Figure 1 An embodiment of the present application provides a main cable protection shed for a suspension bridge, comprising a tunnel anchor 1 and a main cable 2 connected to the tunnel anchor 1; a first column assembly 4 and a second column assembly 5 are sequentially connected to a foundation 3 on the front side of the tunnel anchor 1 in a direction away from the tunnel anchor 1; the tops of the first column assembly 4 and the second column assembly 5 are connected to a shed roof 6 located directly above the main cable 2, and one end of the shed roof 6 is connected to the tunnel anchor 1.

[0053] See also Figure 1 The tunnel anchor 1 is used to anchor in the mountain 10 on the left side. The left end of the main cable 2 is connected to the tunnel anchor 1 and extends obliquely upward from left to right. The front side of the tunnel anchor 1 refers to the side facing the main cable 2, i.e. Figure 1 The first and second column assemblies 4, 5 are spaced apart from each other from left to right and fixed to the foundation 3 in front of the tunnel anchor 1. A roof 6 is positioned directly above the main cable 2 and is fixedly connected to the tops of the first and second column assemblies 4, 5. The end of the roof 6 facing the tunnel anchor 1 is fixedly connected to the tunnel anchor 1.

[0054] The main cable protection shed for a suspension bridge provided in an embodiment of the present application installs a shed roof 6 directly above the main cable 2 through a first column assembly 4 and a second column assembly 5, and then uses the shed roof 6 to protect the main cable 2 in front of the tunnel anchor 1, so as to prevent flying rocks generated in the process of clearing dangerous rocks and accumulations on the mountain 10 from splashing onto the main cable 2 and damaging the main cable 2, thereby improving the safety of the main cable 2; compared with the existing protection net, the protection shed of the present application has higher strength, can effectively withstand the impact of larger flying rocks, and is not easily damaged in bad weather. In the special case where the tunnel project is adjacent to the suspension bridge, it can provide sufficient protection for the main cable 2.

[0055] The size of the roof 6 along the main cable 2 should be determined based on the maximum range of rock splashing on site. The larger the roof 6, the larger the protected area. For example, the length of the roof 6 along the main cable 2 can be 10 meters. Thus, the roof 6 and the tunnel anchor 1 together form a protected area approximately 20 meters long along the main cable 2.

[0056] In some embodiments, see Figure 1 The roof 6 includes a horizontal section 61 and an inclined section 62 connected to the horizontal section 61. The ends of the horizontal section 61 are respectively connected to the tunnel anchor 1 and the first column assembly 4, while the ends of the inclined section 62 are respectively connected to the first column assembly 4 and the second column assembly 5. For example, the slope of the inclined section 62 is consistent with the slope of the main cable 2. The horizontal section 61 can serve as a support for the inclined section 62, providing additional stability. The inclined section 62 is mainly used to protect the main cable 2. When flying rocks hit the inclined section 62, they can slide down onto the horizontal section 61 under the action of gravity. The horizontal section 61 can also serve as a work platform, making it convenient for construction workers to clean up the flying rocks that have fallen on the horizontal section 61.

[0057] The roof 6 can be made entirely of steel plates. Figure 2 The roof 6 includes a support frame 63 and a protective plate 64 connected to the top of the support frame 63. The support frame 63 is connected to the top of the first column assembly 4 and the second column assembly 5. The support frame 63 provides the structural strength and rigidity required for the roof 6, ensuring stability under various load conditions. The protective plate 64, installed above the support frame 63, effectively protects the main cable 2 below the roof 6 from flying rocks. By configuring the roof 6 as a structure consisting of the support frame 63 and the protective plate 64, compared to an all-steel plate structure, the material usage can be reduced, thereby lowering the production cost.

[0058] The support frame 63 can be a frame structure made of steel sections. Figure 3The support frame 63 comprises two parallel main distribution beams 631 and several secondary distribution beams 632 connected between the two main distribution beams 631. The two main distribution beams 631 are respectively arranged on either side of the main cable 2 and connected to the tops of the first column assembly 4 and the second column assembly 5. For example, the main distribution beams 631 are made of 16# I-beams, and the secondary distribution beams 632 are made of 75×5mm angle steel. The secondary distribution beams 632 are 3 meters long and are welded to the main distribution beams 631 at intervals of 1.2 meters.

[0059] The protective plate 64 can be made of steel plate. Figure 4 The protective plate 64 includes a protective steel plate 641 and a protective wooden board 642 connected to the protective steel plate 641. The protective steel plate 641 is connected to the support frame 63. The protective steel plate 641 provides high strength and good impact resistance, while the protective wooden board 642 increases a certain toughness, providing additional protection for the protective steel plate 641, preventing the protective steel plate 641 from being directly impacted by flying rocks, thereby increasing the overall service life of the protective plate 64. At the same time, the protective wooden board 642 is easy to replace after damage, and the replacement cost is low, thereby reducing the maintenance cost of the entire protective plate 64. For example, the thickness of the protective steel plate 641 can be 3 mm, and the thickness of the protective wooden board 642 can be 5 mm.

[0060] In some embodiments, see Figure 1 , sandbags 7 are laid on the top of the tunnel anchor 1. Exemplarily, at least two layers of sandbags 7 are laid on the top of the tunnel anchor 1. By laying sandbags 7 on the top of the tunnel anchor 1, the cushioning effect of the sandbags 7 can be utilized to absorb and disperse the impact force of flying rocks, thereby reducing the damage caused by flying rocks to the tunnel anchor 1. The sandbags 7 can be customized and stacked according to the specific shape and size of the top of the tunnel anchor 1 to provide fitted protection. The sandbags 7 can be quickly replaced after being damaged, and the maintenance cost is low. In other embodiments, the sandbags 7 can also be used in combination with protective measures such as protective nets and protective plates to provide an additional layer of protection.

[0061] In some embodiments, see Figure 3 The first column assembly 4 includes two connected first columns 41, one located on either side of the main cable 2. For example, the first columns 41 can be made of φ325×6mm steel pipes. The center spacing between the two first columns 41 is 2m, and the two first columns 41 are fixedly connected every 3m in height using 75×5mm angle steel. The lower ends of the two first columns 41 are fixedly connected to the foundation 3, and the upper ends of the two first columns 41 are fixedly connected to the two main distribution beams 631.

[0062] In some embodiments, see Figure 5, the lower end of the first column 41 is connected to the foundation 3 through the first anchoring bar 8. For example, the first anchoring bar 8 includes two circles, each circle includes four first anchoring bars 8, and the first anchoring bar 8 can be made of HREB400 φ25mm steel bars. The two circles of first anchoring bars 8 are anchored in the foundation 3, with an anchoring depth of 1m and 15cm exposed. The upper end of the first anchoring bar 8 of the inner circle is welded to the lower end of the first column 41, and the distance between the first anchoring bar 8 of the outer circle and the first anchoring bar 8 of the inner circle is 30cm. The upper end of the first anchoring bar 8 of the outer circle is welded to the first column 41 through steel bars. In order to improve the firmness of the fixation of the first column 41, see Figure 5 A first concrete layer 81 is poured around the lower end of the first column 41. The first concrete layer 81 is cast using C20 concrete, and has a length of 1.5 m, a width of 1.5 m, and a thickness of 0.5 m.

[0063] In some embodiments, see Figure 3 The second column assembly 5 includes four second columns 51 connected together, two of which are arranged on one side of the main cable 2, and the other two second columns 51 are arranged on the other side of the main cable 2. For example, the second columns 51 can be made of φ325×6mm steel pipes. The four second columns 51 are arranged in a square, with the center spacing between adjacent second columns 51 being 2m. The four second columns 51 are fixedly connected every 3m in height using 75×5mm angle steel. A scissor brace is welded between every two angle steels, and the scissor brace is made of 16# channel steel. The lower ends of the four second columns 51 are fixedly connected to the foundation 3, the upper ends of two second columns 51 are fixedly connected to one main distribution beam 631, and the upper ends of the other two second columns 51 are fixedly connected to the other main distribution beam 631.

[0064] In some embodiments, see Figure 6 The lower end of the second column 51 is connected to the foundation 3 through the second anchoring bar 9. For example, the second anchoring bar 9 includes two circles, each circle includes four second anchoring bars 9, and the second anchoring bar 9 can be made of HREB400 φ25mm steel bars. The two circles of second anchoring bars 9 are anchored in the foundation 3, with an anchoring depth of 1m and 15cm exposed. The upper end of the second anchoring bar 9 of the inner circle is welded to the lower end of the second column 51, and the distance between the second anchoring bar 9 of the outer circle and the second anchoring bar 9 of the inner circle is 30cm. The upper end of the second anchoring bar 9 of the outer circle is welded to the second column 51 through steel bars. In order to improve the firmness of the fixation of the second column 51, see Figure 6A second concrete layer 91 is poured around the lower end of the second column 51. The second concrete layer 91 is cast using C20 concrete and has a length of 1.5 m, a width of 1.5 m, and a thickness of 0.5 m. The four second concrete layers 91 are preferably cast integrally to improve strength after casting.

[0065] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Based on the technical essence of the present application and within the spirit and principles of the present application, any simple modification, equivalent replacement and improvement of the above embodiment shall still fall within the scope of protection of the technical solution of the present application.

Claims

1. A main cable protection shed for a suspension bridge, comprising a tunnel anchor (1) and a main cable (2) connected to the tunnel anchor (1); characterized in that: A first column assembly (4) and a second column assembly (5) are sequentially connected to the foundation (3) on the front side of the tunnel anchor (1) in a direction away from the tunnel anchor (1); the tops of the first column assembly (4) and the second column assembly (5) are connected to a roof (6) located directly above the main cable (2); and one end of the roof (6) is connected to the tunnel anchor (1).

2. The main cable protection shed for a suspension bridge according to claim 1, characterized in that: The roof (6) comprises a horizontal section (61) and an inclined section (62) connected to the horizontal section (61); two ends of the horizontal section (61) are respectively connected to the tunnel anchor (1) and the first column assembly (4); and two ends of the inclined section (62) are respectively connected to the first column assembly (4) and the second column assembly (5).

3. The main cable protection shed for a suspension bridge according to claim 1 or 2, characterized in that: The roof (6) comprises a supporting frame (63) and a protective plate (64) connected above the supporting frame (63), wherein the supporting frame (63) is connected to the top of the first column assembly (4) and the second column assembly (5).

4. The main cable protection shed for a suspension bridge according to claim 3, characterized in that: The support frame (63) comprises two main distribution beams (631) arranged in parallel and a plurality of secondary distribution beams (632) connected between the two main distribution beams (631). The two main distribution beams (631) are respectively arranged on both sides of the main cable (2) and connected to the top of the first column assembly (4) and the second column assembly (5).

5. The main cable protection shed for a suspension bridge according to claim 3, characterized in that: The protective plate (64) comprises a protective steel plate (641) and a protective wooden board (642) connected above the protective steel plate (641), and the protective steel plate (641) is connected to the supporting frame (63).

6. The main cable protection shed for a suspension bridge according to claim 1, characterized in that: A sandbag (7) is laid on the top of the tunnel anchor (1).

7. The main cable protection shed for a suspension bridge according to claim 1, characterized in that: The first column assembly (4) comprises two first columns (41) connected together, and the two first columns (41) are respectively arranged on both sides of the main cable (2).

8. The main cable protection shed for a suspension bridge according to claim 7, characterized in that: The lower end of the first column (41) is connected to the foundation (3) via a first anchoring rib (8).

9. The main cable protection shed for a suspension bridge according to claim 1, characterized in that: The second column assembly (5) comprises four second columns (51) connected together, wherein two of the second columns (51) are arranged on one side of the main cable (2), and the other two of the second columns (51) are arranged on the other side of the main cable (2).

10. The main cable protection shed for a suspension bridge according to claim 9, characterized in that: The lower end of the second column (51) is connected to the foundation (3) via a second anchoring rib (9).

Images