Bridge anti-collision device

Abstract

The invention discloses a bridge anti-collision device which comprises a steel corrugated plate assembly which extends in the length direction of a box girder, is fixed to the box girder and protrudes towards the outer side of the box girder. The steel corrugated plate assembly comprises a plurality of vertical corrugated plate sets arranged in the length direction of the box girder at intervals, and an upper corrugated plate set and a lower corrugated plate set which are fixed to the vertical corrugated plate sets and extend in the length direction of the box girder. The bridge anti-collision device further comprises a plurality of sets of steel damping assemblies, the number of the steel damping assemblies is the same as that of the vertical corrugated plate sets, the steel damping assemblies are fixed to the bridge and can be damaged step by step for damping, and a damping rod part of each steel damping assembly is arranged in a cavity of the corresponding vertical corrugated plate set in a sliding fit mode and extends out of the corresponding vertical corrugated plate set. Steel linkage rods are fixed to the ends, extending out of the vertical corrugated plate sets, of the damping rods. The bridge anti-collision device aims at collision prevention of the two outer sides of the box girder of the bridge, is good in compression, energy absorption and buffering effect, and can prevent collision and impact in a wide area.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, in particular to a bridge anti-collision device. Background Art

[0002] There are many types of bridge anti-collision devices in the prior art, and their structures are different, but they are generally used for bridge pier anti-collision and guardrail or protective wall anti-collision. There is no relevant literature or report on the anti-collision device for the outer side of the box girder of the bridge, and there is no report on its actual application.

[0003] For bridges in coastal areas, collisions between ships and the outer side of the bridge box beam occasionally occur due to high tide, unfamiliarity with the waterway, or / and misjudgment of the ship's height. In particular, it is an objective fact that ships collide with the outer side of the bridge box beam due to typhoons or other reasons.

[0004] However, the existing anti-collision devices for bridge piers, guardrails and protective walls cannot be used for anti-collision on the outer side of the box beam of a bridge. There is an urgent need for an anti-collision device for bridges that has good compression energy absorption and buffering effects and can prevent collisions and impacts over a wide area. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a bridge anti-collision device which can prevent the outer side of the box girder of the bridge, has good compression energy absorption and buffering effect, and can prevent collision and impact over a wide area.

[0006] The technical solution of the present invention is to provide a bridge anti-collision device.

[0007] It includes a steel corrugated plate assembly extending along the length direction of the box beam and fixed on the box beam and protruding outward from the box beam; the steel corrugated plate assembly includes a plurality of vertical corrugated plate groups arranged at intervals along the length direction of the box beam, and an upper corrugated plate group and a lower corrugated plate group fixed to the plurality of vertical corrugated plate groups and extending along the length direction of the box beam;

[0008] The bridge anti-collision device also includes a plurality of steel damping components, the number of which is the same as the number of the plurality of vertical corrugated plate groups, and which are fixed on the bridge and are provided with a plurality of steel damping components that can be destroyed step by step for damping, wherein the damping rod portion of each steel damping component is slidably fitted in the cavity of each vertical corrugated plate group and extends out of the vertical corrugated plate group;

[0009] Steel linkage rods are fixed to the ends of the plurality of damping rods extending out of the vertical corrugated plate group.

[0010] After adopting the above structure, the bridge anti-collision device of the present invention has the following advantages: the bridge anti-collision device of the present invention is highly targeted at the box beam anti-collision of the bridge. The steel corrugated plate assembly extending along the length direction of the box beam and fixed on the box beam and protruding to the outside of the box beam, the multiple groups of steel damping assemblies that can be destroyed step by step for damping, and the steel linkage rods with the extended ends of the multiple steel damping rods of the steel damping assembly fixed closely cooperate and work together. When the bridge anti-collision device is hit by the hull or the cab on the top of the hull, the steel corrugated plate assembly, the steel damping assembly and the steel linkage rod are each both elastic and rigid, and the three play the role of overall anti-collision, anti-impact, shock absorption and shock absorption over a wide area along the length direction of the box beam, and have good compression, energy absorption and buffering effects, changing rigid collision into flexible absorption and resolution, and effectively protecting bridges and ships.

[0011] Furthermore, each group of vertical corrugated plates includes two symmetrical vertical corrugated plates, and the multiple groove bottom plates of the two vertical corrugated plates are screwed and fixed to each other through multiple first threaded fasteners with an isolation section in the middle, and a cavity for the damping rod to slide partially is formed between the multiple groove bottom plates of the two vertical corrugated plates; the inner ends of the two vertical corrugated plates are screwed and fixed to the outer side of the box beam through multiple second threaded fasteners. After adopting the above structure, the vertical corrugated plate group is similar to an accordion structure, which has both elasticity and rigidity, and further plays a compression, energy absorption and buffering effect. And because the two vertical corrugated plates are detachably connected by threaded fasteners, it is very convenient to replace and repair them after a collision, which improves the maintenance efficiency and reduces the maintenance cost.

[0012] Furthermore, a top plate is welded on the top surface of each vertical corrugated plate group, and two rows of screws of the third threaded fasteners are fixed on the top plate. Each upper corrugated plate group includes multiple sections, and each section includes two symmetrical corrugated plates, wherein the two ends of the multiple groove bottom plates of the bottom corrugated plate are screwed and fixed to the two ends of the top plate through the screws and nuts of the respective third threaded fasteners, wherein the two ends of the multiple groove bottom plates of the top corrugated plate are screwed and fixed to the two ends of the multiple groove top plates of the bottom corrugated plate through the bolts and nuts of the respective fourth threaded fasteners. After adopting the above structure, the upper corrugated plate group extends along the length direction of the box beam, and is detachably fixed to each vertical corrugated group, and the upper corrugated plate assembly is similar to an accordion structure, which further ensures the following technical effects: it has both elasticity and rigidity, and plays the role of anti-collision, anti-impact, shock absorption and shock absorption in a wide area along the length direction of the box beam, and has good compression, energy absorption and buffering effects, and changes rigid collision into flexible absorption and resolution, effectively protecting bridges and ships. Moreover, the upper corrugated plate group and the top surfaces of multiple vertical corrugated plate groups are easy and quick to install and reliably connected. After being hit, they can be replaced section by section according to the actual damaged position of the upper corrugated plate group, which further improves the maintenance efficiency and reduces the maintenance cost.

[0013] Furthermore, the top surface of the vertical corrugated plate group is an inclined surface with a high inside and a low outside, and the side view shape of the vertical corrugated plate group is roughly a triangle; the top plate is an inclined plate with a high inside and a low outside, and the two corrugated plates of the upper corrugated plate group are both inclined corrugated plates with a high inside and a low outside. After adopting the above structure, the triangle has good stability, and has good compression, energy absorption and buffering effects after being hit. In particular, the inclined surface formed by the upper corrugated plate group provides an inclined upward guiding effect for the bow of the ship that hits head-on, lifts the bow, converts its kinetic energy into gravitational potential energy, and better protects the hull and bridge.

[0014] Furthermore, a bottom plate is welded to the bottom surface of each vertical corrugated plate group, and two rows of screws of the fifth threaded fasteners are fixed on the bottom plate. Each lower corrugated plate group includes multiple sections, and each section includes two symmetrical horizontal corrugated plates, wherein the two ends of the multiple groove top plates of the top corrugated plate are screwed and fixed to the two ends of the bottom plate through the screws and nuts of the respective fifth threaded fasteners, wherein the two ends of the multiple groove top plates of the bottom corrugated plate are screwed and fixed to the two ends of the multiple groove bottom plates of the top corrugated plate through the bolts and nuts of the respective sixth threaded fasteners. After adopting the above structure, the lower corrugated plate group extends along the length direction of the box beam, and is detachably fixed to each vertical corrugated group, and the upper corrugated plate assembly is similar to an accordion structure, which further ensures the following technical effects: it has both elasticity and rigidity, and plays the role of anti-collision, anti-impact, shock absorption and shock absorption in a wide area along the length direction of the box beam, and has good compression, energy absorption and buffering effects, and changes rigid collision into flexible absorption and resolution, effectively protecting bridges and ships. Moreover, the bottom surfaces of the lower corrugated plate group and the multiple vertical corrugated plate groups are easy and quick to install and reliably connected. After being hit, they can be replaced section by section according to the actual damaged position of the lower corrugated plate group, which further improves the maintenance efficiency and reduces the maintenance cost.

[0015] Furthermore, each set of steel damping components includes a rectangular box body extending along the width direction of the box beam and being closed, wherein the rectangular bottom plate is detachably connected to the box body, and the rectangular box body is fixed to the bottom surface of the box beam via a plurality of seventh threaded fasteners. With the above structure, each set of steel damping components is convenient, fast, stable and reliable to install as a whole, and the closed dustproof function prolongs the service life, and the detachable connection of the rectangular bottom plate facilitates the replacement of the internal damping components after being hit.

[0016] Furthermore, the structure that can be destroyed step by step is as follows: a plurality of transverse tie rods are provided on the rectangular box body of the steel damping component, and the length of the transverse tie rods is shortened one by one from front to back: the degree of susceptibility to destruction decreases one by one from the longest to the shortest; the plurality of transverse tie rods are inserted into the elongated through holes of the damping rod, and the distance between each elongated through hole and the respective transverse tie rod increases one by one, so that the transverse tie rods can be bent one by one from front to back when being hit. After adopting the above structure, the longer the length of the transverse tie rod is, the softer its nature is, and the shorter the length of the transverse tie rod is, the greater the stiffness resistance is. At the same time, the distance between the front hole wall of the long hole of the damping rod and the respective transverse tie rods becomes larger one by one, so the damping rod first contacts the first transverse tie rod described below, then the second, then the third, and then the fourth, thus forming a gradient damage or step-by-step damage. The above two structures of the change in the length of the transverse tie rod and the change in the distance between the front hole wall and the transverse tie rod cooperate with each other to change the impact from a single transverse tie rod to multiple transverse tie rods bearing the impact together. In this way, the degree of damage to each node is reduced, and the four transverse tie rods in each damping box, such as the rectangular box, are avoided from being completely destroyed instantly, further ensuring the technical effects of good compression, energy absorption and buffering effects, changing rigid collisions into flexible absorption and resolution, and effectively protecting bridges and ships.

[0017] Furthermore, the two side plates of the rectangular box are angle steels, and the screws of multiple seventh threaded fasteners pass through the screw holes of the angle steels and are then screwed and fixed by their respective nuts; the two ends of the first transverse tie rod in the front pass through the tie rod holes on the angle steel and are screwed and fixed by their respective nuts, and the first transverse tie rod is the longest; a pair of L-shaped first ear plates, a pair of L-shaped second ear plates and a pair of L-shaped third ear plates are fixed on the inner wall of the top plate of the rectangular box from front to back in sequence, the distance between the two L-shaped first ear plates is smaller than the distance between the two angle steels, the distance between the two L-shaped second ear plates is smaller than the distance between the two L-shaped first ear plates, and the distance between the two L-shaped third ear plates is smaller than the distance between the two L-shaped second ear plates; from front to back, the second transverse tie rod, the third transverse tie rod and the fourth transverse tie rod all pass through the tie rod holes on their respective L-shaped ear plates and are screwed and fixed by threads and nuts at both ends of their own. After the installation of the transverse tie rod adopts the above specific structure, the rigidity, hardness and strength of the angle steel and the L-shaped ear plate are higher than the corresponding transverse tie rods. After being hit, the transverse tie rods are destroyed step by step, which further ensures the good compression, energy absorption and buffering effects, and the technical effects of changing rigid collision into flexible absorption and resolution and effectively protecting bridges and ships. After the transverse tie rod is destroyed, it is only necessary to loosen the nut and replace the transverse tie rod, which further improves the maintenance efficiency and reduces the maintenance cost.

[0018] Furthermore, there is a first longitudinal guide rail protruding downward on the top wall of the cavity, and a second longitudinal guide rail protruding downward on the inner top wall of the box body, the first longitudinal guide rail and the second longitudinal guide rail are in the same straight line, and the top of each damping rod has a longitudinal guide groove that slides with the first longitudinal guide rail and the second longitudinal guide rail; each damping rod has a transverse groove on the end surface extending outside each group of vertical corrugated plates that fits the steel linkage rod, and a pressure plate is screwed and fixed by a plurality of eighth threaded fasteners to press the steel linkage rod at that location. After adopting the above structure, the longitudinal sliding of the damping rod in the cavity and the rectangular box is more flexible, stable and reliable. At the same time, the single damping rod that is hit quickly disperses the power to all damping rods through the steel linkage rod, so that multiple steel damping components work together, further ensuring the good compression, energy absorption and buffering effects, changing rigid collision into flexible absorption and resolution, and effectively protecting the technical effects of bridges and ships. In addition, the connection structure is easy to install and easy to disassemble and replace, which further improves the maintenance efficiency and reduces the maintenance cost.

[0019] Furthermore, the outer side of the box beam is the two outer sides of the box beam, and the two outer sides of the box beam are provided with bridge anti-collision devices, and the bridge anti-collision devices on the two outer sides of the box beam have the same structure, the same number of parts, and are symmetrically arranged. After adopting the above structure, the two outer sides of the box beam have the same bridge anti-collision devices, both sides are protected in the same way, and have the same technical effects as described above.

[0020] It is not difficult to understand that the technical scheme described above for the bridge anti-collision device of the present invention can also be used for criss-crossing overpasses. For example, if the rigid part of the cargo is too high and hits any side of the outer sides of the box girder of the upper transverse bridge, the bridge anti-collision device of the present invention also has the following technical effects: it has both elasticity and rigidity, and can play the role of anti-collision, anti-impact, shock absorption and shock absorption over a wide area along the length direction of the box girder. It has good compression, energy absorption and buffering effects, and transforms rigid collision into flexible absorption and resolution, effectively protecting bridges and vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the preferred embodiment of the bridge anti-collision device of the present invention ( Figure 1-Figure 5 , Figure 8 The pressing plate and the eighth threaded fastener are omitted).

[0022] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure of A.

[0023] Figure 3 It is a structural schematic diagram of a preferred embodiment of the bridge anti-collision device of the present invention after omitting part of the upper corrugated plate group and part of the lower corrugated plate group.

[0024] Figure 4 yes Figure 3Schematic diagram of the enlarged structure of B.

[0025] Figure 5 yes Figure 3 Schematic diagram of the enlarged structure of C in the figure.

[0026] Figure 6 yes Figure 2 A group of vertical corrugated plates in the figure is fixed with a top plate and a bottom plate and the damping rod is omitted to show the structural schematic diagram of the cavity.

[0027] Figure 7 yes Figure 2 A schematic diagram of the exploded and enlarged structure of a group of vertical corrugated plates, a damping rod and an explosion-out pressure plate, an eighth threaded fastener and a first threaded fastener in the front view.

[0028] Figure 8 yes Figure 2 A schematic diagram of the exploded and enlarged structure of a rectangular bottom plate exploded from above, in which a group of steel damping components (damping rods are embedded in the cavities of the vertical corrugated plate group) are exploded.

[0029] Fig. 9 It is a schematic structural diagram of a damping rod in a steel damping assembly showing a longitudinal guide groove, an elongated through hole and a transverse groove.

[0030] Fig.10 It is a schematic diagram of the structure of the box body in the steel damping assembly showing the longitudinal guide rails fixed to the top plate.

[0031] Fig.11 yes Fig. 9 Schematic diagram of the enlarged structure of D in the figure.

[0032] Fig.12 yes Fig.10 Schematic diagram of the enlarged structure of E.

[0033] As shown in the figure:

[0034] 1. Bridge, 11. Bridge deck, 12. Box girder, 13. Cap beam, 14. Pier;

[0035] 2. Steel corrugated plate assembly, 21. Vertical corrugated plate group, 211. Cavity, 2111. Cavity top plate, 21111. First longitudinal guide rail, 212. Vertical corrugated plate, 2121. First groove bottom plate, 22. Upper corrugated plate group, 221. First group, 2211. Bottom oblique corrugated plate, 22111. Second groove bottom plate, 22112. Third groove top plate, 2212. Top oblique corrugated plate, 22121. Third groove bottom plate, 23. Lower corrugated plate group, 231. Second group, 2311. Top horizontal corrugated plate, 23111. Fourth groove top plate, 23112. Fourth groove bottom plate, 2312. Bottom horizontal corrugated plate, 23121. Fifth groove top plate, 24. Top plate, 25. Bottom plate;

[0036] 3. Steel damping assembly, 31. Damping rod, 311. Long through hole, 3111. Front hole wall, 312. Transverse groove, 313. Longitudinal guide groove, 32. Rectangular box, 321. Rectangular bottom plate, 322. Box body, 3221. Ear plate, 3222. Angle steel, 3223. Second longitudinal guide rail, 33. Transverse tie rod, 331. First transverse tie rod, 332. Second transverse tie rod, 333. Third transverse tie rod, 334. Fourth transverse tie rod, 34. L-shaped first ear plate, 35. L-shaped second ear plate, 36. L-shaped third ear plate;

[0037] 4. Steel linkage rod, 41. Pressure plate;

[0038] 5. threaded fastener, 51. first threaded fastener, 511. isolation section, 52. second threaded fastener, 53. third threaded fastener, 531. first screw rod, 54. fourth threaded fastener, 55. fifth threaded fastener, 551. second screw rod, 56. sixth threaded fastener, 57. seventh threaded fastener, 58. eighth threaded fastener, 59. ninth threaded fastener. DETAILED DESCRIPTION

[0039] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these specific embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each specific embodiment of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 shown.

[0041] The bridge 1 of the prior art includes a plurality of piers 14, a cap beam 13 connected to the piers 14, a box beam 12 placed on the cap beam 13, a bridge deck 11 fixed on the box beam 12, and the like.

[0042] The preferred embodiment of the bridge anti-collision device of the present invention comprises a steel corrugated plate assembly 2 extending along the length direction of the box girder 12 and fixed on the box girder 12 and protruding outward from the box girder 12. The steel corrugated plate assembly 2 comprises a plurality of vertical corrugated plate groups 21 arranged at intervals along the length direction of the box girder 12, and an upper corrugated plate group 22 and a lower corrugated plate group 23 fixed to the plurality of vertical corrugated plate groups 21 and extending along the length direction of the box girder 12.

[0043] The bridge anti-collision device also includes a plurality of steel damping components 3, the number of which is the same as the number of the plurality of vertical corrugated plate groups 21, and which are fixed on the bridge 1 such as the box girder 12 and are provided with a plurality of steel damping components 3 which can be gradually destroyed for damping. The damping rod 31 of each steel damping component 3 partially slides in the cavity 211 of each vertical corrugated plate group 21 and extends out of the vertical corrugated plate group 21.

[0044] The ends of the plurality of damping rods 31 extending out of the vertical corrugated plate group 21 are fixed with steel linkage rods 4 .

[0045] Each group of vertical corrugated plates 21 includes two symmetrical vertical corrugated plates 212. Multiple groove bottom plates of the two vertical corrugated plates 212, such as the first groove bottom plate 2121, are screwed and fixed to each other through multiple first threaded fasteners 51 with an isolation section 511 in the middle. Multiple groove bottom plates of the two vertical corrugated plates 212, such as the multiple first groove bottom plates 2121, form a cavity 211 for partial sliding of the damping rod 31. The inner ends of the two vertical corrugated plates 212 are screwed and fixed to the outer side of the box beam 12 through multiple second threaded fasteners 52. Specifically, multiple bolt holes on both sides of the inner ends pass through multiple screws fixed to the outer side of the box beam 12 in a one-to-one manner, and then are tightened one by one through their respective nuts.

[0046] The isolation section 511 of the first threaded fastener 51 can adopt the following two specific structures: Figure 7 As shown, one is a structure of a screw and a jacket, the step of the jacket is the isolation section 511, the width of the cavity 211 is the length of the jacket, and the parts of the screw extending out of the screw holes of the two vertical corrugated plates 212 at both ends are fastened by respective nuts. The other is a structure of only one screw, first screw the limiting nuts at both ends, then put the screw holes on the two vertical corrugated plates 212 on both ends of the screw, and then tighten the fixing nuts on the outside respectively, and the distance between the two limiting nuts is the width of the cavity. It is not difficult to understand that the bottom of the cavity 211 is the bottom plate 25, and the top of the cavity 211 can be welded with a cavity top plate 2111 parallel to the bottom plate 25.

[0047] A top plate 24 is welded to the top surface of each vertical corrugated plate group 21, and two rows of screws of the third threaded fastener 53 such as the first screw 531 are fixed on the top plate 24. Each upper corrugated plate group 22 includes multiple sections such as the first section 221, and each section such as the first section 221 includes two symmetrical corrugated plates such as the following two inclined corrugated plates with a high inner side and a low outer side, wherein the multiple groove bottom plates of the bottom inclined corrugated plate 2211 such as the multiple second groove bottom plates 22111 at both ends They are all screwed and fixed to the two ends of the top plate 24 through the screws of their respective third threaded fasteners 53, such as the first screw 531 and nuts, wherein the two ends of the multiple groove bottom plates of the top oblique corrugated plate 2212, such as the multiple third groove bottom plates 22121, and the two ends of the multiple groove top plates of the bottom oblique corrugated plate 2211, such as the multiple third groove top plates 22112 (the first groove top plate and the second groove top plate are not marked) are all screwed and fixed through the bolts and nuts of their respective fourth threaded fasteners 54. It is not difficult to understand that the two ends of the second groove bottom plate 22111, the two ends of the third groove bottom plate 22121, and the two ends of the third groove top plate 22112 are all provided with through holes for passing screws or bolts, and the nuts of the bolts can be welded and fixed first, and then the bolts, such as hexagon socket bolts, are screwed in.

[0048] The top surface of the vertical corrugated plate group 21 is a sloped surface with a high inside and a low outside, and the side view shape of the vertical corrugated plate group 21 is roughly triangular. The top plate 24 is a sloped plate with a high inside and a low outside, and the two corrugated plates of the upper corrugated plate group 22 are both sloped corrugated plates with a high inside and a low outside.

[0049] A bottom plate 25 is welded to the bottom surface of each group of vertical corrugated plates 21, and two rows of screws of the fifth threaded fasteners 55 such as the second screw 551 are fixed on the bottom plate 25. Each group of lower corrugated plates 23 includes multiple sections such as the second section 231, and each section such as the second section 231 includes two symmetrical horizontal corrugated plates, wherein the two ends of multiple groove top plates of the top horizontal corrugated plate 2311 such as the fourth groove top plate 23111 are screwed and fixed to the two ends of the bottom plate 25 via the screws of their respective fifth threaded fasteners 55 such as the second screw 551 and nuts, wherein the two ends of multiple groove top plates of the bottom horizontal corrugated plate 2312 such as the fifth groove top plate 23121 and the two ends of multiple groove bottom plates of the top horizontal corrugated plate 2311 such as the fourth groove bottom plate 23112 are screwed and fixed via the bolts and nuts of their respective sixth threaded fasteners 56. It is not difficult to understand that both ends of the fourth slot top plate 23111, both ends of the fourth slot bottom plate 23112 and both ends of the fifth slot top plate 23121 have through holes for passing screws or bolts, and the nuts of the bolts can be welded and fixed first, and then the bolts such as hexagon socket bolts can be screwed in.

[0050] It is not difficult to understand that the welded top plate 24 and bottom plate 25 are only for the convenience of connecting and fixing the upper corrugated plate group 22 and the lower corrugated plate group 23 with the vertical corrugated plate group 21, and the thickness is not thick. During the collision process, they can be compressed and deformed to play the same compression, energy absorption and buffering role and effect as the corrugated plate, and change the rigid collision into a flexible absorption and resolution role and effect.

[0051] Each set of steel damping components 3 includes a rectangular box body 32 extending and closed along the width direction of the box beam 12, wherein the rectangular bottom plate 321 and the box body 322 are detachably connected. The detachable connection between the rectangular bottom plate 321 and the box body 322 can adopt the following specific structure: the two side plates of the box body 322 of the rectangular box body 32 are preferably angle steels 3222, and there are multiple bolt through holes on the rectangular bottom plate 321, and the bolts of multiple ninth threaded fasteners 59 pass through the bolt through holes and are screwed into the threaded holes of the ear plates 3221 on the inner side of the angle steels 3222 on both sides of the box body 322. The box body 322 of the rectangular box body 32 is preferably screwed and fixed to the bottom surface of the box beam 12 through multiple seventh threaded fasteners 57. Specifically, multiple bolt through holes on the outer convex frames of the angle steels 3222 on both sides of the box body 322 pass through multiple screws fixed to the bottom surface of the box beam 12 one by one, and then are tightened one by one through their respective nuts.

[0052] Of course, the rectangular box body 32 of the steel damping assembly 3 can also be screwed and fixed to the side of the cap beam 13 and / or the side of the pier 14 via a plurality of seventh threaded fasteners 57 .

[0053] The structure that can be destroyed step by step is preferably: a plurality of transverse tie rods 33 are provided on the rectangular box 32 of the steel damping component 3, and the length of the transverse tie rods 33 is shortened from front to back: the degree of easy destruction decreases from the longest to the shortest, that is, the longer the easier to destroy, and the shorter the less likely to be destroyed. The plurality of transverse tie rods 33 are all inserted into the elongated through hole 311 of the damping rod 31, and it can also be understood that the elongated through hole 311 can slide along the transverse tie rod 33.

[0054] The two ends of the front transverse tie rod, such as the first transverse tie rod 331, pass through the tie rod through holes on the angle steel 3222 and are fixed by respective nuts. The first transverse tie rod 331 is the longest. A pair of L-shaped first ear plates 34, a pair of L-shaped second ear plates 35 and a pair of L-shaped third ear plates 36 are fixed on the inner wall of the top plate of the box body 322 of the rectangular box body 32 in sequence from front to back. The distance between the two L-shaped first ear plates 34 is smaller than the distance between the two angle steels 3222, the distance between the two L-shaped second ear plates 35 is smaller than the distance between the two L-shaped first ear plates 34, and the distance between the two L-shaped third ear plates 36 is smaller than the distance between the two L-shaped second ear plates 35. From front to back, the second transverse tie rod 332, the third transverse tie rod 333 and the fourth transverse tie rod 334 all pass through the tie rod through holes on their respective L-shaped ear plates and are fixed by respective threads at both ends and nuts. For example, the second transverse tie rod 332 passes through the tie rod through hole of the first L-shaped ear plate 34, the third transverse tie rod 333 passes through the tie rod through hole of the second L-shaped ear plate 35, and the fourth transverse tie rod 334 passes through the tie rod through hole of the third L-shaped ear plate 36. The transverse tie rod 33 is a tie rod arranged transversely.

[0055] The length of the front hole wall 3111 of each elongated through hole 311 from the respective transverse tie rod 33 increases one by one, so that the transverse tie rods 33 can be bent one by one from front to back when being collided, that is, they are destroyed one by one from front to back depending on how far or near they are: first the first transverse tie rod 331 is destroyed, then the second tie rod 332 is destroyed, then the third tie rod 333 is destroyed, and then the fourth tie rod 334 is destroyed.

[0056] like Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, there is a first longitudinal guide rail 21111 protruding downward on the top wall of the cavity 211, and a second longitudinal guide rail 3223 protruding downward on the inner top wall of the box body 322, the first longitudinal guide rail 21111 and the second longitudinal guide rail 3223 are on the same straight line, and the top of each damping rod 31 has a longitudinal guide groove 313 that slides with the first longitudinal guide rail 21111 and the second longitudinal guide rail 3223. The first longitudinal guide rail 21111 can be welded and fixed to the cavity top plate 2111 or integrally formed. The longitudinal guide groove 313 can be a U-shaped groove, and the first longitudinal guide rail 21111 and the second longitudinal guide rail 3223 can both be rectangular guide rails.

[0057] It is not difficult to understand that since the box body 322 is connected to the vertical corrugated plate group 21, the damping rod 31 slides in the box body 322 and the cavity 211 of the vertical corrugated plate group 21. Therefore, the part of the damping rod 31 that slides in the cavity 211 of each group of vertical corrugated plate groups 21 refers to the part of the damping rod 31 that extends out of the front end wall of the box body 3222. Except for the damping rod 31 in the cavity 211 in the initial installation state, which can slide in the cavity 211, the outer end of the damping rod 31 that extends out of the cavity 211 of the vertical corrugated plate group 21 during the collision process, except for the part blocked by the steel linkage rod 4, may slide in the cavity 211 of each group of vertical corrugated plate groups 21.

[0058] Each damping rod 31 has a transverse groove 312 on the end surface extending out of each group of vertical corrugated plates 21, which is engaged with the steel linkage rod 4. A pressing plate 41 is fixed by screwing with a plurality of screws such as four eighth threaded fasteners 58, i.e., four screws, and the steel linkage rod 4 there is pressed. The specific pressing structure can be that there are four screw holes on the pressing plate 41, and there are four threaded holes on the outer end surface of the damping rod 31, and the four screws pass through their respective screw holes and are tightened in their respective threaded holes. The steel linkage rod 4 can be a steel rod, i.e., a round steel bar, or a steel wire rope that is tensioned and then welded and fixed to the outer end of the damping rod at both ends of the box beam.

[0059] The bridge anti-collision device is provided on both sides of the box girder 12, and the bridge anti-collision device on both sides of the box girder 12 has the same structure, the same number of parts, and symmetrical arrangement. Specifically, the steel corrugated plate assembly 2, the plurality of steel damping assemblies 3, and the steel linkage rod 4 on both sides of the box girder 12 have the same structure, the same number of parts, and symmetrical arrangement. Figure 3 As shown, although they are both arranged on the outside of the box girder, they are facing forward and backward respectively.

[0060] The outer side of the box beam 12 is the two outer sides of the box beam 12. There are two situations for the two outer sides of the box beam 12. One is Figure 1 , Figure 2 and Figure 3 The multiple box beams 12 shown in the figure refer to the respective outer sides of the two outer box beams 12. Another is that an integral box beam is used, which is not shown in the figure, and the two outer sides of the box beam refer to the two outer sides of the integral box beam.

[0061] Of course, in some specific environments, if only one side of the box girder 12 of the bridge 1 is at risk of being hit, while the other side does not have such a possibility, then the bridge anti-collision device of the present invention is only installed on one side of the bridge 1 such as the box girder 12, and this structure is also within the protection scope of the present invention.

[0062] It is not difficult to understand that the screws or bolts fixed to the box girder 12 can adopt the following two specific structures. If the box girder 12 is made of steel, the screws can be welded or stepped screws can be screwed in after drilling. If the box girder 12 is a reinforced concrete structure, expansion bolts can be used. The same applies if the steel damping assembly is fixed on the cap beam 13 and / or the pier 14. It is not difficult to understand that all parts of the steel corrugated plate assembly 2 are made of steel. All parts of the steel damping assembly 3 are made of steel. It is not difficult to understand that the steel linkage rod itself and the pressure plate 41 matched with the steel linkage rod 4 are made of steel. For ease of expression, the first threaded fastener to the ninth threaded fastener are collectively referred to as threaded fasteners 5. The screws or bolts or screws and nuts of the threaded fastener 5 are all made of steel. The rectangular box body 32 can also be called a rectangular box body.

[0063] The installation steps of the preferred embodiment of the bridge anti-collision device of the present invention are roughly as follows.

[0064] First install the bridge anti-collision device of the present invention on one side:

[0065] 1. The rectangular boxes 32 of the multiple steel damping assemblies 3 are fixed to the bottom of the box beam 12 one by one through the multiple seventh threaded fasteners 57 , and each damping rod 31 extends out of its own rectangular box 32 .

[0066] Second, a plurality of vertical corrugated plate groups 21 having a roughly triangular shape are fixed to the outside of the box beam 12 through a plurality of second threaded fasteners 52 , and each damping rod 31 is extended out of the vertical corrugated group 21 after passing through the cavity 211 .

[0067] 3. A top plate 24 with two rows of first screw rods 531 is welded and fixed on the top surface of each vertical corrugated plate group 21 , and a bottom plate 25 with two rows of second screw rods 551 is welded and fixed on the bottom surface of each vertical corrugated plate group 21 .

[0068] 4. Fix the two ends of the multiple second groove bottom plates 22111 of the bottom inclined corrugated plate 2211 section by section through a row of third threaded fasteners 53 of each top plate 24, and fix the two ends of the multiple third groove bottom plates 22121 of the top inclined corrugated plate 2212 and the two ends of the multiple third groove top plates 22112 of the bottom inclined corrugated plate 2211 through multiple fourth threaded fasteners 54.

[0069] 5. Fix the two ends of the multiple fourth groove top plates 23111 of the top horizontal corrugated plate 2311 to each row of fifth threaded fasteners 55 of each bottom plate 25 section by section, and fix the two ends of the multiple fifth groove top plates 23121 of the bottom horizontal corrugated plate 2312 to the two ends of the multiple fourth groove bottom plates 23112 of the top horizontal corrugated plate 2311 via multiple sixth threaded fasteners 56.

[0070] 6. The steel linkage rod 4 such as a round steel bar is embedded in the transverse groove 312 on the outer end surface of each damping rod 31, and fixed by a plurality of eighth threaded fasteners 58 to compress the steel linkage rod 4 such as a round steel bar at that location.

[0071] 7. Repeat the above steps 1 to 6 to install the symmetrical bridge anti-collision device on the other side of the box girder 12 of the bridge 1.

[0072] After installation, the anti-collision devices of the bridge on both sides protrude outwards of the box girder.

[0073] It is easy to understand that the two symmetrical steel damping components 3 can share a rectangular box, so that the installation of one rectangular box is reduced for every two symmetrical steel damping components, but the structure and function of the steel damping components 3 are symmetrically separated and do not interfere with each other. Of course, the symmetrical steel damping components 3 can also be their own rectangular boxes 32.

[0074] The above unmarked parts, structures or quantities are not shown in the drawings, and some parts are not marked in the drawings. The drawings are only for reference only. If there is any inconsistency between the drawings and the text description or between the drawings, the text description shall prevail.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bridge anti-collision device, characterized in that: It includes a steel corrugated plate assembly extending along the length direction of the box beam and fixed on the box beam and protruding outward from the box beam; the steel corrugated plate assembly includes a plurality of vertical corrugated plate groups arranged at intervals along the length direction of the box beam, and an upper corrugated plate group and a lower corrugated plate group fixed to the plurality of vertical corrugated plate groups and extending along the length direction of the box beam; The bridge anti-collision device also includes a plurality of steel damping assemblies, the number of which is the same as the number of the plurality of vertical corrugated plate groups, which are fixed on the bridge and are provided with a plurality of steel damping assemblies that can be destroyed step by step for damping, and a portion of a damping rod of each steel damping assembly is slidably fitted in a cavity of each vertical corrugated plate group and extends out of the vertical corrugated plate group; Steel linkage rods are fixed to the ends of the plurality of damping rods extending out of the vertical corrugated plate group.

2. The bridge anti-collision device according to claim 1, characterized in that: Each group of vertical corrugated plates includes two symmetrical vertical corrugated plates. The multiple groove bottom plates of the two vertical corrugated plates are screwed and fixed to each other through multiple first threaded fasteners with an isolation section in the middle. A cavity is formed between the multiple groove bottom plates of the two vertical corrugated plates for the damping rod to slide partially; the inner ends of the two vertical corrugated plates are screwed and fixed to the outer side of the box beam through multiple second threaded fasteners.

3. The bridge anti-collision device according to claim 2, characterized in that: A top plate is welded to the top surface of each group of vertical corrugated plates, and two rows of screws of third threaded fasteners are fixed on the top plate. Each group of upper corrugated plates includes multiple sections, and each section includes two symmetrical corrugated plates, wherein both ends of the multiple groove bottom plates of the bottom corrugated plates are screwed and fixed to both ends of the top plate via respective screws and nuts of third threaded fasteners, and wherein both ends of the multiple groove bottom plates of the top corrugated plates are screwed and fixed to both ends of the multiple groove top plates of the bottom corrugated plates via respective bolts and nuts of fourth threaded fasteners.

4. The bridge anti-collision device according to claim 3, characterized in that: The top surface of the vertical corrugated plate group is an inclined surface with a high inside and a low outside, and the side view shape of the vertical corrugated plate group is roughly a triangle; the top plate is an inclined plate with a high inside and a low outside, and the two corrugated plates of the upper corrugated plate group are both inclined corrugated plates with a high inside and a low outside.

5. The bridge anti-collision device according to claim 2, characterized in that: A bottom plate is welded to the bottom surface of each group of vertical corrugated plates, and two rows of screws of the fifth threaded fasteners are fixed on the bottom plate. Each group of lower corrugated plates includes multiple sections, and each section includes two symmetrical horizontal corrugated plates, wherein the two ends of the multiple groove top plates of the top corrugated plate are screwed and fixed to the two ends of the bottom plate via the screws and nuts of their respective fifth threaded fasteners, and the two ends of the multiple groove top plates of the bottom corrugated plate are screwed and fixed to the two ends of the multiple groove bottom plates of the top corrugated plate via the bolts and nuts of their respective sixth threaded fasteners.

6. The bridge anti-collision device according to claim 2, characterized in that: Each set of steel damping components includes a closed rectangular box extending along the width direction of the box beam, wherein the rectangular bottom plate is detachably connected to the box body, and the rectangular box is fixed to the bottom surface of the box beam via a plurality of seventh threaded fasteners.

7. The bridge anti-collision device according to claim 6, characterized in that: The structure that can be destroyed step by step is as follows: a plurality of transverse tie rods are arranged on the rectangular box of the steel damping component, and the length of the transverse tie rods is shortened one by one from front to back: the degree of susceptibility to destruction decreases one by one from the longest to the shortest; the plurality of transverse tie rods are inserted into the elongated through holes of the damping rod, and the distance between the front hole wall of each elongated through hole and the respective transverse tie rods increases one by one, so that the transverse tie rods can be bent one by one from front to back when being hit.

8. The bridge anti-collision device according to claim 7, characterized in that: The two side plates of the rectangular box are angle steels, and the screws of multiple seventh threaded fasteners pass through the screw holes of the angle steels and are then screwed and fixed by their respective nuts; the two ends of the first transverse tie rod at the front pass through the tie rod holes on the angle steels and are screwed and fixed by their respective nuts, and the first transverse tie rod is the longest; a pair of L-shaped first ear plates, a pair of L-shaped second ear plates and a pair of L-shaped third ear plates are fixed on the inner wall of the top plate of the rectangular box from front to back in sequence, the distance between the two L-shaped first ear plates is smaller than the distance between the two angle steels, the distance between the two L-shaped second ear plates is smaller than the distance between the two L-shaped first ear plates, and the distance between the two L-shaped third ear plates is smaller than the distance between the two L-shaped second ear plates; from front to back, the second transverse tie rod, the third transverse tie rod and the fourth transverse tie rod all pass through the tie rod holes on their respective L-shaped ear plates, and are screwed and fixed by threads and nuts at both ends of their respective ends.

9. The bridge anti-collision device according to claim 6, characterized in that: There is a first longitudinal guide rail with a downward protrusion on the top wall of the cavity, and a second longitudinal guide rail with a downward protrusion on the inner top wall of the box body. The first longitudinal guide rail and the second longitudinal guide rail are on the same straight line. The top of each damping rod has a longitudinal guide groove that slides with the first longitudinal guide rail and the second longitudinal guide rail; each damping rod extends out of each group of vertical corrugated plates. The end surface has a transverse groove for engaging a steel linkage rod. A pressure plate is screwed and fixed by screws of multiple eighth threaded fasteners to press the steel linkage rod there.

10. The bridge anti-collision device according to any one of claims 1 to 9, characterized in that: The outer sides of the box girder are the two outer sides of the box girder, and bridge anti-collision devices are arranged on both outer sides of the box girder. The structures of the bridge anti-collision devices on the two outer sides of the box girder are the same, the number of parts is the same, and the positions are arranged symmetrically.

Images