Rockfall protection device for a suspension bridge

Abstract

The application discloses a rockfall protection device for a suspension bridge, which comprises a flexible shed hole and a connecting assembly for connecting the flexible shed hole and an exit end face of a tunnel, wherein the connecting assembly is provided at least in three and is arranged along the width direction of the flexible shed hole; the connecting assembly comprises a steel pipe arranged on the flexible shed hole, a sliding rod sleeved in the steel pipe and in sliding connection with the steel pipe, a limiting plate arranged at the end of the sliding rod away from the flexible shed hole, a connecting rod connected with the exit end face of the tunnel, and a hollow sleeve arranged on the connecting rod, wherein the end of the sleeve away from the connecting rod is provided with an opening through which the limiting plate passes, and a baffle is arranged at the opening and is used in cooperation with the limiting plate to limit and constrain the axial displacement of the limiting plate. The rockfall protection device for the suspension bridge can be used for rockfall protection of the suspension bridge and can adapt to the displacement requirements of the longitudinal displacement, the up-and-down displacement and the left-and-right swing displacement of the bridge body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge structure construction, and more particularly to a rockfall protection device for a suspension bridge. BACKGROUND

[0002] The absolute height difference between the bridge plane and the distribution area of the dangerous rock of the deep canyon area is large, and the impact energy level of the rockfall is high. For example, if the dangerous rock falls, it will seriously threaten the safety of the bridge body and driving safety. The suspension bridge body will displace longitudinally under the temperature effect, displace up and down under the heavy load condition, and sway left and right under the canyon crosswind condition.

[0003] Traditional reinforced concrete sheds are generally built on open road cutting ground or in open foundation pits, and have certain requirements for the bearing capacity of the structure foundation. If the bridge deck is selected as the foundation, the bridge body needs a larger structure to meet the load requirements. If an independent foundation is selected, the construction and engineering cost are not economical, and the suspension bridge does not have foundation site conditions. Therefore, the traditional reinforced concrete shed is not suitable for rockfall protection of the suspension bridge, and cannot adapt to the longitudinal displacement, up and down displacement, and left and right sway displacement of the bridge body.

[0004] Therefore, there is an urgent need for a rockfall protection device for a suspension bridge, which can be used for rockfall protection of the suspension bridge and can adapt to the displacement requirements of the longitudinal displacement, up and down displacement, and left and right sway displacement of the bridge body. SUMMARY

[0005] To solve the above technical problems, the present application provides a rockfall protection device for a suspension bridge, which can be used for rockfall protection of the suspension bridge and can adapt to the displacement requirements of the longitudinal displacement, up and down displacement, and left and right sway displacement of the bridge body.

[0006] The technical scheme provided by the present application is as follows:

[0007] A rockfall protection device for a suspension bridge comprises:

[0008] A flexible shed and a connecting assembly for connecting the flexible shed and the tunnel exit end face, the connecting assembly is provided at least three, and the connecting assembly is arranged along the width direction of the flexible shed;

[0009] Among them,

[0010] The connecting assembly comprises:

[0011] A steel pipe arranged on the flexible shed;

[0012] A sliding rod sleeved in the steel pipe and in sliding connection with the steel pipe, one end of the sliding rod away from the flexible shed is provided with a limiting plate;

[0013] A connecting rod connected with the tunnel exit end face, a hollow sleeve is arranged on the connecting rod, an opening is arranged on the end of the sleeve away from the connecting rod for the limiting plate to pass through, and a baffle is arranged at the opening for restricting the axial displacement of the limiting plate.

[0014] Preferably, an annular matching hole is arranged in the baffle for cooperating with the sliding rod, the size of the matching hole is greater than the outer diameter of the sliding rod, and the size of the matching hole is smaller than the size of the limiting plate.

[0015] Preferably, the connecting assembly further comprises:

[0016] A first buffer arranged at the bottom of the sleeve, and the first buffer is arranged at the end of the sleeve away from the opening.

[0017] Preferably, the connecting assembly further comprises:

[0018] A second buffer arranged in the sleeve, the second buffer is sleeved on the outside of the sliding rod, and the end face of the second buffer is fixedly connected with the baffle.

[0019] Preferably, the first buffer and the second buffer are both made of rubber.

[0020] Preferably, the connecting assembly further comprises:

[0021] A bottom plate fixedly connected with the end face of the tunnel exit, and the connecting rod is fixedly connected with the bottom plate.

[0022] Preferably, the connecting assembly further comprises:

[0023] A connecting plate arranged between the sleeve and the connecting rod, the outer diameter of the connecting plate is greater than the outer diameter of the sleeve, and the connecting plate and the sleeve are integrally formed.

[0024] Preferably, the connecting assembly further comprises:

[0025] An inclined rod arranged between adjacent connecting rods for connecting the connecting plate and the end face of the tunnel exit, one end of the inclined rod is fixedly connected with the bottom plate, and the end of the inclined rod away from the bottom plate is fixedly connected with the connecting plate of the adjacent connecting rod.

[0026] Preferably, the connecting assembly further comprises:

[0027] An intercepting net arranged above the connecting assembly for intercepting falling rocks, and both ends of the intercepting net are fixedly connected with a flexible shed and the end face of the tunnel exit.

[0028] Preferably, both sides of the flexible shed are fixedly connected with the top plate of the bridge body.

[0029] The rockfall protection device for the suspension bridge provided by the present application firstly has a flexible shed hole and a connecting assembly. The flexible shed hole is fixedly arranged on the bridge deck of the suspension bridge, and the connecting assembly is arranged between the flexible shed hole and the tunnel exit end face. The connecting assembly has at least three groups, and the connecting assemblies are arranged along the width direction of the bridge body. Compared with the traditional reinforced concrete shed hole, the flexible shed hole has a lighter weight and can be directly fixed on the bridge body, thereby reducing the requirement for independent construction foundation. The bridge body of the suspension bridge generates longitudinal displacement under the temperature effect, and the bridge body is also prone to up-down displacement under heavy load conditions. In addition, the suspension bridge is prone to left-right yaw displacement under canyon crosswind conditions. The flexible shed hole is prone to differences during installation and construction, thereby increasing the construction difficulty and construction risk of the flexible shed hole. The connecting assembly includes a steel pipe, a sliding rod, and a connecting rod. The steel pipe is fixedly arranged on the flexible shed hole. The sliding rod is sleeved in the steel pipe and is in sliding connection with the steel pipe. When the suspension bridge generates left-right yaw displacement under canyon crosswind conditions, the sliding rod slides in the steel pipe to compensate for the position of the suspension bridge when the suspension bridge generates left-right yaw displacement. The end of the sliding rod away from the flexible shed hole is provided with a limiting plate. The connecting rod is connected with the tunnel exit end face. The connecting rod is provided with a hollow sleeve. The end of the sleeve away from the connecting rod is provided with an opening through which the limiting plate passes. The sleeve is sleeved on the outside of the sliding rod. The limiting plate extends into the sleeve through the opening. A baffle is arranged at the opening and is used in cooperation with the limiting plate. The baffle is used to limit and constrain the axial position of the limiting plate. The sliding rod can rotate in any direction relative to the connecting rod, and can be adjusted in up-down displacement and lateral displacement in the sleeve, thereby meeting the requirement that the bridge body of the suspension bridge generates longitudinal displacement under the temperature effect and the bridge body is also prone to up-down displacement under heavy load conditions. It can be seen that, compared with the prior art, the rockfall protection device for the suspension bridge in the present application can be used for rockfall protection of the suspension bridge. The structure is simple, and can adapt to the displacement requirements of the longitudinal displacement, up-down displacement, and left-right yaw displacement of the bridge body. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application. Those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0031] Figure 1 A structural schematic view of the rockfall protection device for the suspension bridge provided by the present application;

[0032] Figure 2 A structural schematic view of the rockfall protection device for the suspension bridge provided by the present application; Figure 1 A local enlarged view of A in FIG. 4.

[0033] Figure 3 A structural schematic view of a connecting assembly provided by an embodiment of the present application;

[0034] Figure 4 A structural schematic view of a flexible shed provided by an embodiment of the present application.

[0035] The drawings show: 1, flexible shed; 2, tunnel exit end face; 3, connecting assembly; 31, steel pipe; 32, sliding rod; 33, limiting plate; 34, connecting rod; 35, sleeve; 36, baffle; 37, first buffer; 38, second buffer; 4, bottom plate; 5, connecting plate; 6, inclined rod; 7, intercepting net; 11, flexible protective net; 12, support frame; 13, tie rod; 14, support rod; 15, buffer steel wire rope; 16, energy dissipation device. DETAILED DESCRIPTION

[0036] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms “length”, “width”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In addition, the terms “first” and “second” are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with “first” and “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “a plurality of” or “several” is two or more, unless otherwise explicitly and specifically limited.

[0040] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0041] The embodiments of this invention are written in a progressive manner.

[0042] like Figures 1 to 4 As shown, this embodiment of the invention provides a rockfall protection device for a suspension bridge, comprising: a flexible canopy 1 and connecting components 3 for connecting the flexible canopy 1 to the tunnel exit end face 2. At least three connecting components 3 are provided, and the connecting components 3 are spaced apart along the width direction of the flexible canopy 1. Each connecting component 3 includes: a steel pipe 31 mounted on the flexible canopy 1; a sliding rod 32 fitted inside the steel pipe 31 and slidably connected to the steel pipe 31, with a limiting plate 33 at one end of the sliding rod 32 away from the flexible canopy 1; and a connecting rod 34 connected to the tunnel exit end face 2. A hollow sleeve 35 is provided on the connecting rod 34, with an opening at one end of the sleeve 35 away from the connecting rod 34 for the limiting plate 33 to pass through. A baffle 36 is provided at the opening to cooperate with the limiting plate 33 and to limit the axial displacement of the limiting plate 33.

[0043] Traditional reinforced concrete tunnel structures in existing technologies are generally built on open roadbed surfaces or in open foundation pits, which places certain demands on the bearing capacity of the structural foundation. If the bridge deck is chosen as the foundation, the bridge structure needs a larger structure to meet its load requirements. If an independent foundation is chosen, the construction and project cost are uneconomical. Therefore, traditional reinforced concrete tunnel structures are not suitable for rockfall protection of suspension bridges, and they cannot accommodate longitudinal, vertical, or lateral displacements of the bridge structure.

[0044] The rockfall protection device for the suspension bridge provided by the present application firstly is provided with a flexible shed tunnel 1 and a connecting assembly 3, wherein the flexible shed tunnel 1 is fixedly arranged on the bridge deck of the suspension bridge, the flexible shed tunnel 1 is connected with the tunnel exit end face 2 through the connecting assembly 3, and the connecting assembly 3 is arranged in the width direction of the bridge body and is spaced apart. Compared with the traditional reinforced concrete shed tunnel, the body of the flexible shed tunnel 1 is lighter in weight, can be directly fixed on the bridge body, and reduces the requirement for independent construction foundation. Due to the longitudinal displacement of the bridge body of the suspension bridge under the temperature effect, the up-down displacement of the bridge body under the heavy load condition, and the left-right yaw displacement of the suspension bridge under the canyon crosswind condition, the flexible shed tunnel 1 is prone to have differences during installation and construction, which increases the construction difficulty and construction risk of the flexible shed tunnel 1. The connecting assembly 3 provided by the present application comprises a steel pipe 31, a sliding rod 32 and a connecting rod 34, wherein the steel pipe 31 is fixedly arranged on the flexible shed tunnel 1, the sliding rod 32 is sleeved in the steel pipe 31 and is in sliding connection with the steel pipe 31, the sliding rod 32 slides in the steel pipe 31 to compensate the position when the suspension bridge has the left-right yaw displacement under the canyon crosswind condition, a limiting plate 33 is arranged at the end of the sliding rod 32 away from the flexible shed tunnel 1, the connecting rod 34 is connected with the tunnel exit end face 2, a hollow sleeve 35 is arranged on the connecting rod 34, a bottom plate 4 is arranged at the end of the sleeve 35 close to the connecting rod 34, an opening is arranged at the end of the sleeve 35 away from the connecting rod 34 for the limiting plate 33 to pass through, the sleeve 35 is sleeved on the outside of the sliding rod 32, the limiting plate 33 extends into the sleeve 35 through the opening, a baffle 36 is arranged at the opening, the baffle 36 is used in cooperation with the limiting plate 33, the baffle 36 is used for limiting and restraining the axial position of the limiting plate 33, the sliding rod 32 can rotate in any direction relative to the connecting rod 34 in the sleeve 35 and can have up-down and lateral adjustment displacement in the sleeve 35, which meets the requirement that the bridge body of the suspension bridge has longitudinal displacement under the temperature effect and up-down displacement under the heavy load condition. It can be seen that, compared with the prior art, the rockfall protection device for the suspension bridge in the embodiment of the present application can be used for rockfall protection of the suspension bridge, has a simple structure, and can meet the displacement requirements of the longitudinal displacement, up-down displacement and left-right yaw displacement of the bridge body.

[0045] Furthermore, the protection capacity of the general traditional reinforced concrete shed tunnel is designed according to the energy level generated by 0.5 square stone falling from 1 m, and the protection energy level is about 12.5 Kj. At present, the design energy level of the flexible shed tunnel 1 is generally 100 kj-500 kj, and the protection energy level is much larger than that of the traditional reinforced concrete shed tunnel, and the protection effect is better.

[0046] In addition, each component of the flexible shed tunnel 1 is of an assembled structure, and the structural size is processed and customized in a factory, which is more efficient, and can solve the following problems in the construction process: the longitudinal displacement of the bridge body under the temperature effect, the up and down displacement of the bridge body under the same heavy load condition, and the left and right displacement of the bridge body under the canyon crosswind condition. The flexible shed tunnel 1 can appear construction errors in the assembly process. In order to facilitate construction, the flexible shed tunnel 1 and the tunnel exit end surface 2 are connected through the connecting assembly 3, so that the flexible shed tunnel 1 can adapt to the displacement requirements of the longitudinal displacement, the up and down displacement and the left and right displacement.

[0047] Further, the steel pipe 31 in the embodiment of the present application is arranged on the end surface of the flexible shed tunnel 1, and the steel pipe 31 and the flexible shed tunnel 1 are connected by welding.

[0048] Further, in order to avoid friction and wear of the inner wall of the steel pipe 31 when the sliding rod 32 slides in the steel pipe 31, as one of the embodiments, a wear-resistant piece is arranged between the inner wall of the steel pipe 31 and the sliding rod 32. Further, the wear-resistant piece in the embodiment of the present application is specifically a polyethylene four fluorine sliding plate, so that the sliding rod 32 can slide in the steel pipe 31 without causing wear to the inner wall of the steel pipe 31.

[0049] In the above method, as one of the embodiments, the length of the sliding rod 32 in the embodiment of the present application is not less than 140 cm, so that the left and right sliding distance of the sliding rod 32 in the steel pipe 31 is not less than 70 cm, which meets the requirement of the left and right displacement of the suspension bridge.

[0050] In the above method, as one of the embodiments, the baffle 36 in the embodiment of the present application is provided with an annular matching hole used in cooperation with the sliding rod 32, wherein the size of the matching hole is greater than the outer diameter of the sliding rod 32, the sliding rod 32 has up and down adjustment displacement and transverse adjustment displacement in the matching hole, which is more convenient for the installation of the flexible shed tunnel 1, and the size of the matching hole is smaller than the size of the limiting plate 33, so that the axial direction of the sliding rod 32 can be limited and constrained by the baffle 36, while ensuring that the sliding rod 32 has rotational freedom relative to the connecting rod 34 in the sleeve 35, the sliding rod 32 has transverse adjustment displacement and radial adjustment displacement, so as to adapt to the displacement requirements of the longitudinal displacement, the up and down displacement and the left and right displacement of the bridge body.

[0051] In the above method, as one of the embodiments, the connecting assembly 3 in the embodiment of the present application further comprises a first buffer 37, wherein the first buffer 37 is arranged in the sleeve 35, the first buffer 37 is arranged at the end of the sleeve 35 away from the opening, and the first buffer 37 is fixedly connected with the bottom of the sleeve 35. Specifically, when the limiting plate 33 on the sliding rod 32 moves to contact the bottom of the sleeve 35, since the first buffer 37 is arranged, the first buffer 37 has a buffering function, avoiding rigid collision between the limiting plate 33 and the bottom of the sleeve 35, and causing damage to the limiting plate 33.

[0052] In the above method, as one of the embodiments, the connecting assembly 3 in the embodiment of the present application further comprises a second buffer 38, wherein the second buffer 38 is arranged in the sleeve 35, the second buffer 38 is sleeved on the outer side of the sliding rod 32, the second buffer 38 is fixedly connected with the baffle 36, and the end surface of the second buffer 38 abuts against the baffle 36. On the one hand, by sleeving the second buffer 38 on the outer side of the sliding rod 32, the end surface of the second buffer 38 abuts against the baffle 36, when the limiting plate 33 on the sliding rod 32 moves axially, rigid collision between the baffle 36 and the limiting plate 33 is avoided.

[0053] In the above method, as one of the more preferred embodiments, the first buffer 37 and the second buffer 38 in the embodiment of the present application are both made of rubber material.

[0054] In the above structure, as one of the embodiments, the connecting assembly 3 in the embodiment of the present application further comprises a bottom plate 4, wherein the bottom plate 4 is fixed on the tunnel outlet end surface 2, and the connecting rod 34 is fixedly connected with the bottom plate 4, so that the connecting rod 34 and the tunnel outlet end surface 2 are fixed through the bottom plate 4.

[0055] More specifically, the bottom plate 4 and the tunnel outlet end surface 2 in the embodiment of the present application are fixedly connected through bolts, and the connecting rod 34 and the bottom plate 4 are fixedly connected through welding.

[0056] In the above structure, as one of the embodiments, the connecting assembly 3 in the embodiment of the present application further comprises a connecting plate 5, wherein the connecting plate 5 is arranged between the sleeve 35 and the connecting rod 34, the outer diameter of the connecting plate 5 is greater than the outer diameter of the sleeve 35, and the connecting plate 5 and the sleeve 35 are specifically an integral molding structure.

[0057] Furthermore, the connecting plate 5 and the connecting rod 34 are fixedly connected through welding, which is more convenient for installation of the connecting rod 34.

[0058] In the above structure, as one of the embodiments, the connecting assembly 3 further comprises a diagonal rod 6, wherein the diagonal rod 6 is arranged between the adjacent connecting rods 34, one end of the diagonal rod 6 is connected with the bottom plate 4, and the other end of the diagonal rod 6 is connected with the connecting plate 5 of the adjacent connecting rod 34, and the connection is more stable.

[0059] Further, the diagonal rod 6 and the bottom plate 4, and the diagonal rod 6 and the connecting plate 5 are connected by welding.

[0060] In the above structure, as one of the embodiments, the rockfall protection device for the suspension bridge further comprises an intercepting net 7, wherein the intercepting net 7 is arranged above the connecting assembly 3, the intercepting net 7 is used for intercepting the rockfall, and the two ends of the intercepting net 7 are fixedly connected with the flexible shed tunnel 1 and the tunnel exit end face 2 respectively, and the rock falling from above is intercepted by the intercepting net 7, and the effect is better.

[0061] In the above structure, as one of the embodiments, the length of the intercepting net 7 can cover the tunnel entrance between the flexible shed tunnel 1 and the tunnel exit end face 2, and the two ends of the intercepting net 7 are left with a margin of not less than 80 cm. The two ends of the intercepting net 7 are fixedly connected with the flexible shed tunnel 1 and the tunnel exit end face 2 by shackles.

[0062] In the above structure, as one of the embodiments, the two sides of the flexible shed tunnel 1 are fixedly connected with the bridge body, and further, the two sides of the flexible shed tunnel 1 are fixedly connected with the two side flanges of the bridge body.

[0063] As shown in the drawings, Figure 4 The flexible shed tunnel 1 comprises a flexible protective net 11 and a rigid protective assembly, wherein the flexible protective net 11 is used for intercepting the rockfall, the rigid protective assembly is arranged below the flexible protective net 11, the rigid protective assembly is used for supporting the flexible protective net 11, the rigid protective assembly comprises a support frame 12, a tie rod 13 and a support rod 14, wherein the support frame 12 is fixedly connected with the bridge body, the support frame 12 is provided with at least three, and the support frames are arranged at intervals along the length direction of the bridge body, the tie rod 13 is used for connecting the support frames 12, the tie rod 13 extends along the direction of the bridge body, the adjacent two support frames 12 are connected by the tie rod 13, the tie rod 13 is provided with at least three, and is arranged at intervals along the width direction of the bridge body, in order to further increase the supporting strength of the rigid protective assembly, the support rod 14 is arranged between the adjacent two tie rods 13, and the support rod 14, the tie rod 13 and the support frame 12 form a triangular protective unit, and the supporting effect is better.

[0064] In the above structure, as one of the embodiments, the flexible shed tunnel 1 in the embodiment of the present application further comprises a buffer wire rope 15, wherein the buffer wire rope 15 is arranged above the flexible protective net 11, the first end of the buffer wire rope 15 is fixedly connected with the first end of the rigid protective assembly, the second end of the buffer wire rope 15 is fixedly connected with the second end of the rigid protective assembly through the energy absorber 16, the buffer wire rope 15 is at least provided with two, and the buffer wire rope 15 is arranged in the width direction of the bridge body in an interval manner. Since the buffer wire rope 15 and the energy absorber 16 are arranged, the energy absorber 16 is used for dissipating the impact of the falling rocks. The falling rock impact force is transmitted through the buffer wire rope 15, when the impact force reaches the starting threshold value of the energy absorber 16, the energy absorber 16 is triggered to start the function of intercepting the falling rocks, and the interception effect is better.

[0065] Further, the support frame 12 in the embodiment of the present application is specifically an arc-shaped steel frame.

[0066] The flexible shed tunnel 1 takes the support frame 12 as the main body, and the flexible protective net 11 is arranged above the support frame 12 as a falling rock protective net. The characteristics of the flexible protective net 11 are fully utilized, the lighting degree of the shed tunnel is increased, and the cost of lighting and ventilation during operation is reduced. The flexible shed tunnel is most suitable for bridge-tunnel connecting engineering. Since the base form of the support frame 12 is relatively flexible, even if the single construction is carried out, the engineering scale is smaller compared with the open tunnel lengthening base engineering.

[0067] The flexible shed tunnel 1 is mainly composed of the rigid protective assembly and the flexible protective net 11, each component can be realized factory processing and production, and on-site assembly, and the construction is simple, fast, long in service life and low in construction cost. Meanwhile, since the quality of the flexible shed tunnel 1 is relatively light, the bridge can be effectively combined, the requirements for the foundation and site conditions are reduced, and the falling rock protection problem under the condition of no roadbed at the bridge-tunnel connecting position is solved.

[0068] In the above structure, the construction method of the falling rock protection device for the suspension bridge comprises the following steps:

[0069] The arch foot embedded bolt is installed on the bridge deck;

[0070] The arch foot column is hoisted and installed on the arch foot embedded bolt, the arch foot column is corrected, and the support frame 12 is assembled at the same time;

[0071] The support frame 12 is hoisted and installed;

[0072] After the installation of the adjacent two support frames 12 is completed, the tie rod 13 and the support rod 14 are installed until the rigid protective assembly is completely installed;

[0073] The flexible protective net 11 is installed above the rigid protective assembly;

[0074] A buffer wire rope 15 is installed above the flexible protective screen 11.

[0075] A connecting assembly 3 is installed between the support frame 12 and the tunnel exit end face 2.

[0076] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rockfall protection device for suspension bridges, characterized in that, include: The flexible tunnel (1) and the connecting components (3) for connecting the flexible tunnel (1) and the tunnel exit end face (2) are provided with at least three connecting components (3), and the connecting components (3) are spaced apart along the width direction of the flexible tunnel (1). in, The connection component (3) includes: The steel pipe (31) is installed on the flexible shed (1); A sliding rod (32) is fitted inside the steel pipe (31) and slidably connected to the steel pipe (31). A limiting plate (33) is provided at one end of the sliding rod (32) away from the flexible opening (1). A connecting rod (34) is connected to the tunnel exit end face (2). A sleeve (35) is provided on the connecting rod (34). An opening is provided at one end of the sleeve (35) away from the connecting rod (34) for the limiting plate (33) to pass through. A baffle (36) is provided at the opening to constrain the axial displacement of the limiting plate (33). The baffle (36) is provided with an annular mating hole that works with the sliding rod (32). The size of the mating hole is larger than the outer diameter of the sliding rod (32) and smaller than the size of the limiting plate (33).

2. The rockfall protection device for suspension bridges according to claim 1, characterized in that, The connection component (3) further includes: A first buffer (37) is disposed at the bottom of the sleeve (35), the first buffer (37) being disposed at the end of the sleeve (35) away from the opening.

3. The rockfall protection device for suspension bridges according to claim 2, characterized in that, The connection component (3) further includes: The second buffer (38) is disposed inside the sleeve (35), and the second buffer (38) is slidably fitted on the outside of the sliding rod (32). The end face of the second buffer (38) is fixedly connected to the baffle (36).

4. The rockfall protection device for suspension bridges according to claim 3, characterized in that, Both the first buffer (37) and the second buffer (38) are made of rubber.

5. The rockfall protection device for suspension bridges according to any one of claims 1 to 4, characterized in that, Also includes: The bottom plate (4) is fixed to the tunnel exit end face, and the connecting rod (34) is fixedly connected to the bottom plate (4).

6. The rockfall protection device for suspension bridges according to claim 5, characterized in that, Also includes: A connecting plate (5) is disposed between the sleeve (35) and the connecting rod (34). The outer diameter of the connecting plate (5) is larger than the outer diameter of the sleeve (35), and the connecting plate (5) and the sleeve (35) are specifically integrally formed.

7. The rockfall protection device for suspension bridges according to claim 6, characterized in that, Also includes: An inclined rod (6) is provided between adjacent connecting rods (34). One end of the inclined rod (6) is fixedly connected to the base plate (4), and the end of the inclined rod (6) away from the base plate (4) is fixedly connected to the connecting plate (5) of the adjacent connecting rod (34).

8. The rockfall protection device for suspension bridges according to any one of claims 1 to 4, 6, and 7, characterized in that, Also includes: An intercepting net (7) is set above the connecting component (3) to intercept falling rocks. The two ends of the intercepting net (7) are fixedly connected to the flexible tunnel (1) and the tunnel exit end face (2), respectively.

9. The rockfall protection device for a suspension bridge according to any one of claims 1 to 4, 6, and 7, characterized in that, The flexible shed (1) is fixedly connected to the top plate of the bridge body on both sides.

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