An array - type hollow combined - section anti - collision device with multi - level fortification

Abstract

The present invention relates to a multi-level fortified array-type hollow composite section anti-collision device, which is composed of interconnected anti-collision segments. The anti-collision segment includes: a device main body, which includes an inner steel sleeve, an outer steel sleeve sleeved outside the inner steel sleeve, a rubber ring placed between the inner steel sleeve and the outer steel sleeve, a lightweight filler filled in the gap between the inner steel sleeve and the outer steel sleeve, and a prestressed steel bundle left between the inner steel sleeve and the outer steel sleeve and passing through the rubber ring. A number of diaphragms are also arranged at intervals between the inner steel sleeve and the outer steel sleeve; a rolling module or a sliding module fixed on the device main body and in contact with the foundation structure to be protected. Compared with the prior art, the present invention realizes multi-level protection of the bridge structure under ship impact loads on the premise of ensuring no damage or very little damage to the surface layer in contact with the bridge structure under normal use conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field of anti-collision protection devices for bridge structures, and relates to an array-type hollow combined section anti-collision device with multiple levels of protection. Background Art

[0002] In the field of bridge anti-collision, in addition to active protection technologies such as monitoring and early warning, another relatively mature technical solution is to set anti-collision devices around the bridge structures to be protected to resist the impact loads that the bridge structures may bear during the design reference period, such as impacts from ships and floating objects. Various anti-collision devices have been applied in many large bridges at home and abroad. Currently, the technical difficulties in the existing solutions still focus on the following points:

[0003] (1) During the design reference period of the bridge structure, the anti-collision device has caused relatively serious damage and destruction to the surface layer of the bridge structure, mainly due to the friction and wear accumulated tens of thousands of times between the device and the structure surface with the change of water level, as well as the repeated collisions accumulated tens of thousands of times between the device and the structure surface under the action of wave current and sea waves.

[0004] (2) During the service period of the anti-collision device, the more frequent slight scratches by small ships cause the tearing and peeling of the anti-corrosion paint on the surface of the device, and then the anti-collision performance of the main body of the device deteriorates due to steel corrosion.

[0005] (3) After being subjected to impact loads of different intensities, the repair and replacement processes of the device are cumbersome. Sometimes, after being impacted by medium and small intensity loads, only some parts of the device are severely damaged, but the subsequent repair work has to be carried out around the entire device.

[0006] (4) The anti-collision mechanism and mechanical concept of the device are not clear enough, and multi-level protection of the bridge structure cannot be achieved through a relatively clear and simple structure and combination form.

[0007] Chinese Patent CN 201975728 U discloses a ship collision prevention device for spiral structure piers, which intends to change the direction of the ship's bow through the geometric shape of the structure itself. This is feasible for the situation where the ship slightly scratches the device at a small angle. If the ship hits the bridge structure due to factors such as weather or human operation errors, it is difficult to achieve the design goal of turning the ship's bow, and the buffer and energy absorption effect of the device itself is very limited, resulting in the bridge structure losing effective protection. Summary of the Invention

[0008] The purpose of the present invention is to provide an array-type hollow combined section anti-collision device with multiple levels of protection, which can achieve multi-level protection of the bridge structure under ship impact loads on the premise of ensuring little or no damage to the surface layer in contact with basic structures such as the bridge structure under normal use conditions.

[0009] The object of the present invention can be achieved by the following technical solutions:

[0010] An array - type hollow combined - section anti - collision device with multi - level fortifications, which is composed of interconnected anti - collision segments. The anti - collision segment includes:

[0011] Device main body: It includes an inner steel sleeve, an outer steel sleeve sleeved outside the inner steel sleeve, a rubber ring placed between the inner steel sleeve and the outer steel sleeve, a lightweight filler filled in the gap between the inner steel sleeve and the outer steel sleeve, and prestressed steel strands left between the inner steel sleeve and the outer steel sleeve and passing through the rubber ring. A number of diaphragms are also arranged at intervals between the inner steel sleeve and the outer steel sleeve to divide the space between the inner steel sleeve and the outer steel sleeve into several sealed compartments;

[0012] A rolling module or a sliding module fixed on the device main body and in contact with the foundation structure to be protected. Preferably, for the anti - collision segment along the water flow direction (the water - facing segment), a rolling module is used to achieve the contact between the device and the foundation structure, and for the anti - collision segment against the water flow direction (the back - water segment), a sliding module is used to achieve the contact between the device and the foundation structure. This is because the frequency of contact, friction, and collision of the device with the device main body on the water - facing side is significantly higher than that of the segment on the back - water side.

[0013] Furthermore, the rubber rings are arranged in a pressed - state array between the inner steel sleeve and the outer steel sleeve, and the rubber rings are respectively inscribed and circumscribed to the outer steel sleeve and the inner steel sleeve, that is, the rubber rings are tightly attached between the inner steel sleeve and the outer steel sleeve.

[0014] Furthermore, the rubber ring has an annular structure, and a cavity is formed by grooving from its inner wall to the outside, thus forming a hollow rubber ring structure similar to an automobile tire (outer tire).

[0015] Furthermore, the lightweight filler can specifically be made of porous plastics such as polystyrene and polyvinyl chloride, or other lightweight materials with certain energy - absorption effects and low water absorption rates. Specifically, when in use, the lightweight filler fills the space intervals between the inner steel sleeve and the rubber ring, between the outer steel sleeve and the rubber ring, inside the rubber ring, etc.

[0016] Furthermore, after the prestressed steel strands are tensioned and pre - pressed against the rubber ring, they are left in the device segment. Preferably, the prestressed steel strands are preferably left parallel to the segment axis in the middle of the rubber ring. Under medium and strong impact loads, the prestressed steel strands play a certain role in intercepting and blocking the ship.

[0017] Furthermore, composite materials can also be superposed and attached to the surface of the outer steel sleeve. Specifically, it can be fiber materials such as carbon fiber, aramid fiber, glass fiber, etc., or corrosion-resistant metal materials such as titanium and titanium alloys, to improve the device's ability to resist rust in the marine humid environment.

[0018] Furthermore, the rolling module includes a first connecting rib plate, an end support plate, a roller bracket and a roller component. Among them, both ends of the first connecting rib plate are fixedly connected to the outer steel sleeve and the end support plate respectively. The roller bracket is arranged on the outer surface of the end support plate, and the roller component is arranged on the roller bracket.

[0019] Furthermore, a through slot is machined on the end support plate. The storage bin is installed on the inner surface of the end support plate, and the opening of the storage bin faces the slot. The roller bracket has the freedom to move along the slot. A limiting pin for locking the roller bracket is also provided between the roller bracket and the end support plate. The limiting pin breaks when it is subjected to a stress exceeding the set threshold, so that the roller bracket and the end support plate are unlocked, and thus the roller bracket and the roller component can be pressed into the storage bin.

[0020] Furthermore, a first rubber fender is also provided on the outer side of the end support plate. Along the direction perpendicular to the surface of the end support plate, the first rubber fender is lower than the contact surface between the roller component and the foundation structure. Generally, the first rubber fender is 2-3 cm lower to ensure that under normal circumstances, the contact between the device main body and the foundation structure is the rolling friction of the rolling component, without damage to the device main body. Preferably, the shape of the first rubber fender can be arched, semi-circular, or other geometric rubber components, to ensure the buffer energy absorption effect of the first anti-collision line. At the same time, a wear-resistant layer can also be provided on the first rubber fender.

[0021] Furthermore, the first connecting rib plate can be composed of a longitudinal rib plate and a stiffening rib, so as to ensure the reliability of the connection between the rolling module and the device main body.

[0022] Furthermore, the sliding module is composed of a second connecting rib plate and a second rubber fender. Among them, both ends of the second connecting rib plate are fixedly connected to the outer steel sleeve and the second rubber fender respectively. The structure of the second rubber fender is similar to that of the first rubber fender. A wear-resistant layer can also be superimposed on the top of the second rubber fender to achieve the sliding contact between the backwater side section and the foundation structure, so as to reduce the friction coefficient and the damage to the structure.

[0023] Further, the outer contour of the diaphragm plate is welded to the inner wall of the outer steel sleeve, and the inner contour of the diaphragm plate is welded to the outer wall of the inner steel cylinder. The diaphragm plate has two functions. One is to increase the ability of the device main body to resist impact loads, and the other is to form several water-tight compartments. Each water-tight compartment pre-presses several rubber rings and is filled with lightweight filler. Even when the water-tight compartment is damaged and flooded due to impact loads, the water-displacing characteristic of the lightweight filler occupying space in the compartment enables the device to have the characteristic of permanent floating, and the overall imbalance and inclination of the device will not be caused by the water ingress of individual segments.

[0024] Further, between two adjacent anti-collision segments, the two inner steel sleeves are connected and fixed through a flange plate, the two outer steel sleeves are connected and fixed through a connecting cover plate, and the space between the inner steel sleeve and the outer steel sleeve at the connecting part between the two anti-collision segments is also filled and overflowed with lightweight filler.

[0025] Further, different anti-collision segments are divided into straight segments and bent segments with different sizes according to the shapes of the corresponding foundation structures to be protected. At this time, the shapes of the outer steel sleeve, inner steel sleeve, etc. also need to be adjusted accordingly to adapt to the outer contour of the foundation structure.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] First, the device has multiple anti-collision defense lines. Under small, medium, and large impact load intensities, the rolling module or sliding module, the combined cross-section main body, and the inner steel sleeve are damaged sequentially, so as to realize multi-level protection of the foundation structure and hierarchical maintenance and replacement of the device.

[0028] Second, the combined cross-section main body gives full play to the geometric advantage of the circular cross-section deforming along the radial direction to resist impact loads. At the same time, the rubber material (rubber ring), steel (inner and outer steel sleeves), and porous plastic (lightweight filler) are reasonably combined as much as possible to give play to the energy absorption, energy dissipation, and drainage characteristics of the above materials, thereby improving the protection effect of the device on the bridge structure.

[0029] Third, the prestressed steel strands left can play a certain role in intercepting ships. Cooperating with the last line of defense, that is, the inner steel sleeve with higher strength and stiffness, the extreme damage caused by uncertain impact loads to the bridge structure is avoided to the greatest extent.

[0030] Fourth, during operation, the main device and the foundation structure are in rolling and sliding contact through customized rolling modules and sliding modules, effectively avoiding the friction and wear accumulated tens of thousands of times between the device and the structure surface due to the change of water level, as well as the damage and destruction to the structure caused by the repeated collisions accumulated tens of thousands of times between the device and the structure surface under the action of wave current and sea waves.

[0031] V. The outer steel sleeve is superimposed with composite materials, such as fiber materials: carbon fiber, aramid fiber, glass fiber, etc., and corrosion-resistant metal materials: titanium, titanium alloy, etc., which greatly improves the corrosion resistance of the device, prevents the tearing and peeling of the anti-corrosion paint on the surface of the device caused by the slight scratching of small ships encountered frequently, and avoids the occurrence of the deterioration of the anti-collision performance due to rust.

[0032] VI. The transverse diaphragms arranged in parallel at a certain interval further divide each anti-collision segment into several watertight compartments. Coupled with the drainage of the lightweight filler, it realizes permanent flotation, so that the device will not cause weight loss deflection or even sink into the water due to local damage and water ingress.

[0033] VII. The connection forms of the flange structure and the connection cover plate between each segment increase the repairability and replaceability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is an elevation view of the anti-collision device installed in the bridge structure in Embodiment 1;

[0035] Figure 2 It is a plan view of the anti-collision device installed in the bridge structure in Embodiment 1;

[0036] Figure 3 It is a sectional view of the device with a rolling module attached in Embodiment 1;

[0037] Figure 4 It is a sectional view of the device with a sliding module attached in Embodiment 1;

[0038] Figure 5 It is a schematic diagram of the outer steel sleeve superimposed with composite materials in Embodiment 1;

[0039] Figure 6 It is a schematic diagram of the structure of the rubber ring in Embodiment 1;

[0040] Figure 7 It is an elevation view of the rolling module in Embodiment 1;

[0041] Figure 8 It is a plan view of the rolling module in Embodiment 1;

[0042] Figure 9 It is a schematic diagram of the arched anti-collision fender structure in Embodiment 1;

[0043] Figure 10 It is a schematic diagram of the structure of the curved segment a with a rolling module attached in Embodiment 1;

[0044] Figure 11 It is a schematic diagram of the structure of the straight segment b with a rolling module attached in Embodiment 1;

[0045] Figure 12Schematic diagram of the straight segment c with a rolling module added in Example 1;

[0046] Figure 13 Schematic diagram of the straight segment d with a sliding module added in Example 1;

[0047] Figure 14 Schematic diagram of the diaphragm in Example 1;

[0048] Figure 15 Schematic diagram of the prestressed steel tendon in Example 1;

[0049] Figure 16 Schematic diagram of the flange structure connection of the inner steel sleeve in Example 1;

[0050] Figure 17 Large-scale drawing of the connection bolt of the flange structure in Example 1;

[0051] Figure 18 Schematic diagram of the connection of the outer steel sleeve in Example 1;

[0052] Figure 19 Large-scale drawing of the connection bolt of the outer steel sleeve in Example 1;

[0053] Figure 20 Comparison diagram of the test results of the hollow single-section and the array-type hollow combined-section model segments in Example 1;

[0054] Figure 21 For Figure 18 Schematic diagram of the D-D section of

[0055] Figure 22 For Figure 20 The structural form of the hollow single section mentioned in the test curve in

[0056] Marking description in the figure:

[0057] 1 - Outer steel sleeve, 2 - Inner steel sleeve, 3 - Rubber ring, 4 - Lightweight filler, 5 - Limited-capability pin shaft, 6 - Storage bin, 7 - Roller component, 8 - First connecting rib plate, 9 - Second connecting rib plate, 10 - Roller support, 11 - First rubber fender, 12 - End support plate, 13 - Reserved bolt hole, 14 - Connecting bolt, 15 - Flange plate, 16 - Trapezoidal stiffening plate, 17 - Connecting cover plate, 18 - Diaphragm, 19 - Prestressed steel tendon, 20 - Connecting beam, 21 - Wear-resistant layer, 22 - Second rubber fender, 23 - Composite material, 24 - Device main body, 25 - Rolling module, 26 - Sliding module. Detailed implementation method

[0058] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given. However, the protection scope of the present invention is not limited to the following embodiments.

[0059] In the following embodiments or examples, if there is no special description of functional components or structures, it means that they are all conventional components or structures adopted in the art to achieve corresponding functions.

[0060] To ensure that there is no damage or very little damage to the surface layer in contact with the bridge structure under normal use conditions, and to achieve multi-level protection of the bridge structure under ship impact loads, the present invention proposes an array-type hollow composite section anti-collision device with multi-level defenses. Its structure is shown in Figures 1 to 19 as follows, which is composed of interconnected anti-collision segments. The anti-collision segments include:

[0061] Device main body 24: It includes an inner steel sleeve 2, an outer steel sleeve 1 sleeved outside the inner steel sleeve 2, a rubber ring 3 placed between the inner steel sleeve 2 and the outer steel sleeve 1, a lightweight filler 4 filled in the gap between the inner steel sleeve 2 and the outer steel sleeve 1, and a prestressed steel bundle 19 left between the inner steel sleeve 2 and the outer steel sleeve 1 and passing through the rubber ring 3. A number of diaphragms 18 are also arranged at intervals between the inner steel sleeve 2 and the outer steel sleeve 1 to divide the space between the inner steel sleeve 2 and the outer steel sleeve 1 into several sealed compartments;

[0062] A rolling module 25 or a sliding module 26 fixed on the device main body 24 and in contact with the foundation structure to be protected. Preferably, the anti-collision segment along the water flow direction (the water-facing side segment) uses the rolling module 25 to realize the contact between the device and the foundation structure, and the anti-collision segment against the water flow direction (the backwater side segment) uses the sliding module 26 to realize the contact between the device and the foundation structure. This is because the frequency of contact, friction, and collision between the device and the device main body 24 on the water-facing side is significantly higher than that of the segments on the backwater side.

[0063] In a specific embodiment, please refer to Figure 3 、 Figure 4 etc. as shown. The rubber rings 3 are arranged in an array in a compressed state between the inner steel sleeve 2 and the outer steel sleeve 1, and the rubber rings 3 are respectively inscribed and circumscribed to the outer steel sleeve 1 and the inner steel sleeve 2, that is, the rubber rings 3 are tightly attached between the inner steel sleeve 2 and the outer steel sleeve 1.

[0064] In a specific embodiment, please refer to Figure 6 etc. as shown. The rubber ring 3 has an annular structure, and a cavity is formed by digging a groove from its inner wall to the outside, thereby forming a hollow rubber ring structure similar to an automobile tire (outer tire).

[0065] In a specific embodiment, the lightweight filler 4 can specifically be a porous plastic made of resins such as polystyrene and polyvinyl chloride, or other lightweight materials with a certain energy absorption effect and low water absorption rate. During specific use, the lightweight filler 4 fills the spatial intervals between the inner steel sleeve 2 and the rubber ring 3, between the outer steel sleeve 1 and the rubber ring 3, inside the rubber ring 3, etc.

[0066] In a specific embodiment, please refer to Figure 12 、 Figure 13 and Figure 15 as shown, etc. After the prestressed steel bundle 19 is tensioned and precompressed against the rubber ring 3, it is left in the device segment. Preferably, the prestressed steel bundle 19 is preferably placed parallel to the segment axis in the middle of the rubber ring 3. Under medium and strong impact loads, the prestressed steel bundle 19 plays a certain role in intercepting and blocking the ship.

[0067] In a specific embodiment, a composite material 23 can also be superposed and attached to the surface of the outer steel sleeve 1. Specifically, it can be a fiber material such as carbon fiber, aramid fiber, glass fiber, etc., or a corrosion-resistant metal material such as titanium, titanium alloy, etc., to improve the device's ability to resist corrosion in the marine humid environment.

[0068] In a specific embodiment, please refer to Figure 7 、 Figure 8 as shown, etc. The rolling module 25 includes a first connecting rib plate 8, an end support plate 12, a roller bracket 10, and a roller component 7. Among them, both ends of the first connecting rib plate 8 are fixedly connected to the outer steel sleeve 1 and the end support plate 12 respectively. The roller bracket 10 is arranged on the outer surface of the end support plate 12, and the roller component 7 is arranged on the roller bracket 10.

[0069] In a more specific embodiment, please refer to Figure 7 、 Figure 8 as shown, etc. A through slot is machined on the end support plate 12. The storage bin is installed on the inner surface of the end support plate 12, and the opening of the storage bin faces the slot. The roller bracket 10 has the freedom to move along the slot. A limiting ability pin 5 for locking the roller bracket 10 is also provided between the roller bracket 10 and the end support plate 12. The limiting ability pin 5 breaks when it is subjected to a stress exceeding the set threshold, unlocking the roller bracket 10 from the end support plate 12, so that the roller bracket 10 and the roller component 7 can be pressed into the storage bin ⑥.

[0070] In a more specific embodiment, please refer to Figure 3As shown in the figure, a first rubber fender 11 is also provided outside the end gusset plate 12. Along the direction perpendicular to the surface of the end gusset plate 12, the first rubber fender 11 is lower than the contact surface between the roller assembly 7 and the foundation structure. Generally, the first rubber fender 11 is 2 - 3 cm lower to ensure that under normal circumstances, the rolling friction contact of the rolling components is between the device main body 24 and the foundation structure, without damage to the device main body 24. Preferably, the shape of the first rubber fender 11 can be arched, semi-circular, or other geometric rubber components, which are used to ensure the buffer energy absorption effect of the first anti-collision defense line.

[0071] In a more specific embodiment, please refer to Figure 7 、 Figure 8 As shown in the figure, the first connecting rib plate 8 can be composed of longitudinal rib plates and stiffening ribs, so as to ensure the reliability of the connection between the rolling module 25 and the device main body 24.

[0072] In a specific embodiment, please refer to Figure 4 and Figure 9 As shown in the figure, the sliding module 26 is composed of a second connecting rib plate 9 and a second rubber fender 22. Among them, both ends of the second connecting rib plate 9 are fixedly connected to the outer steel sleeve 1 and the second rubber fender 22 respectively. The structure of the second rubber fender 22 is similar to that of the first rubber fender 11, but different from the first rubber fender 11, a wear-resistant layer 21 is superimposed on the top of the second rubber fender 22 to achieve the sliding contact between the backwater side segment and the foundation structure, so as to reduce the friction coefficient and the damage to the structure.

[0073] In a specific embodiment, please refer to Figure 14 As shown in the figure, the outer contour of the diaphragm plate 18 is welded to the inner wall of the outer steel sleeve 1, and the inner contour of the diaphragm plate 18 is welded to the outer wall of the inner steel cylinder. The diaphragm plate 18 has two functions. One is to increase the ability of the device main body 24 to resist impact loads, and the other is to form several watertight compartments. Each watertight compartment is pre-pressed with several rubber rings 3 and filled with lightweight filler 4. Even when the watertight compartment is damaged and flooded due to impact loads, the water-displacing characteristic of the lightweight filler 4 in the compartment occupying space makes the device have the characteristic of permanent flotation, and the device will not be unbalanced and tilted due to the water ingress of individual segments.

[0074] In a specific embodiment, please refer to Figures 16 to 19 、 Figure 21 As shown in the figure, between two adjacent anti-collision segments, the two inner steel sleeves 2 are fixedly connected by a flange plate 15, the two outer steel sleeves 1 are fixedly connected by a connecting cover plate 17, and the space between the inner steel sleeve 2 and the outer steel sleeve 1 at the connection part between the two anti-collision segments is also filled and overflowed with lightweight filler 4.

[0075] In a specific embodiment, different anti-collision segments are divided into straight segments and bent segments with different sizes according to the different shapes of the underlying structures to be protected. At this time, the shapes of the outer steel sleeve 1, the inner steel sleeve 2, etc. also need to be adjusted correspondingly to adapt to the outer contour of the underlying structure.

[0076] Each of the above embodiments can be implemented independently, or can be combined in any pair or more combinations according to the implementation needs.

[0077] The above embodiments will be described in more detail below with reference to specific examples.

[0078] Example 1:

[0079] To ensure that there is no damage or very little damage to the surface layer in contact with the bridge structure under normal use conditions, and to achieve multi-level protection of the bridge structure under ship impact loads, this example proposes a multi-level fortified array-type hollow composite section anti-collision device, the structure of which is shown in Figures 1 to 19 As shown, it is composed of interconnected anti-collision segments, and the anti-collision segments include:

[0080] Device main body 24: It includes an inner steel sleeve 2, an outer steel sleeve 1 sleeved outside the inner steel sleeve 2, a rubber ring 3 placed between the inner steel sleeve 2 and the outer steel sleeve 1, a lightweight filler 4 filled in the gap between the inner steel sleeve 2 and the outer steel sleeve 1, and a prestressed steel bundle 19 left between the inner steel sleeve 2 and the outer steel sleeve 1 and passing through the rubber ring 3. A number of diaphragms 18 are also arranged at intervals between the inner steel sleeve 2 and the outer steel sleeve 1 to divide the space between the inner steel sleeve 2 and the outer steel sleeve 1 into several sealed compartments;

[0081] A rolling module 25 or a sliding module 26 fixed on the device main body 24 and in contact with the underlying structure to be protected. Preferably, the anti-collision segment along the water flow direction (the water-facing side segment) uses the rolling module 25 to realize the contact between the device and the underlying structure, and the anti-collision segment against the water flow direction (the back-water side segment) uses the sliding module 26 to realize the contact between the device and the underlying structure. This is because the frequency of contact, friction, and collision between the device and the device main body 24 on the water-facing side is significantly higher than that of the segments on the back-water side.

[0082] Please refer to Figure 3 、 Figure 4 As shown, etc., the rubber rings 3 are arranged in a compressed state in an array between the inner steel sleeve 2 and the outer steel sleeve 1, and the rubber rings 3 are respectively inscribed and circumscribed to the outer steel sleeve 1 and the inner steel sleeve 2, that is, the rubber rings 3 are tightly attached between the inner steel sleeve 2 and the outer steel sleeve 1.

[0083] Please refer to Figure 6As shown, the rubber ring 3 has an annular structure, and a cavity is formed by grooving from its inner wall to the outside, thus forming a hollow rubber ring structure similar to an automobile tire (outer tire).

[0084] The lightweight filler 4 can specifically be made of porous plastics such as polystyrene and polyvinyl chloride, or other lightweight materials with a certain energy absorption effect and low water absorption. Specifically in use, the lightweight filler 4 fills the space intervals between the inner steel sleeve 2 and the rubber ring 3, between the outer steel sleeve 1 and the rubber ring 3, inside the rubber ring 3, etc.

[0085] Please refer to again Figure 12 、 Figure 13 and Figure 15 As shown, after the prestressed steel bundle 19 is tensioned to precompress the rubber ring 3, it is left in the device segment. Preferably, the prestressed steel bundle 19 is preferably placed parallel to the segment axis in the middle of the rubber ring 3. Under medium and strong impact loads, the prestressed steel bundle 19 plays a certain role in intercepting and blocking the ship.

[0086] Please refer to again Figure 5 As shown, a composite material 23 can also be superposed and attached to the surface of the outer steel sleeve 1. Specifically, it can be fiber materials such as carbon fiber, aramid fiber, and glass fiber, or corrosion-resistant metal materials such as titanium and titanium alloys, to improve the device's ability to resist corrosion in a marine humid environment. In this embodiment, a glass fiber material layer is used.

[0087] Please refer to again Figure 7 、 Figure 8 As shown, the rolling module 25 includes a first connecting rib plate 8, an end support plate 12, a roller bracket 10, and a roller component 7. Among them, both ends of the first connecting rib plate 8 are fixedly connected to the outer steel sleeve 1 and the end support plate 12 respectively. The roller bracket 10 is arranged on the outer surface of the end support plate 12, and a roller component 7 is arranged on the roller bracket 10.

[0088] Please refer to again Figure 7 、 Figure 8 As shown, a through slot is machined on the end support plate 12, and the storage bin is installed on the inner surface of the end support plate 12, and the opening of the storage bin faces the slot. The roller bracket 10 has the freedom to move along the slot. A limiting ability pin shaft 5 for locking the roller bracket 10 is also provided between the roller bracket 10 and the end support plate 12. The limiting ability pin shaft 5 breaks when it is subjected to a stress exceeding the set threshold, unlocking the roller bracket 10 and the end support plate 12, so that the roller bracket 10 and the roller component 7 can be pressed into the storage bin 6. In this way, the smooth transfer between levels of the entire multi-level protection function can be achieved.

[0089] Please refer to again Figure 3As shown in [relevant figures], a first rubber fender 11 is also provided outside the end gusset plate 12. Along the direction perpendicular to the surface of the end gusset plate 12, the first rubber fender 11 is lower than the contact surface between the roller component 7 and the foundation structure. Generally, the first rubber fender 11 is 2 - 3 cm lower, ensuring that under normal circumstances, the rolling friction contact between the rolling components exists between the device main body 24 and the foundation structure, without damage to the device main body 24. Preferably, the shape of the first rubber fender 11 can be arched, semi-circular, or other geometric rubber components, used to ensure the buffer energy absorption effect of the first anti-collision line of defense.

[0090] Please refer to again Figure 7 、 Figure 8 As shown in [relevant figures], etc., the first connecting rib plate 8 can be composed of longitudinal rib plates and stiffening rib bars, so as to ensure the reliability of the connection between the rolling module 25 and the device main body 24.

[0091] Please refer to again Figure 4 and Figure 9 As shown in [relevant figures], etc., the sliding module 26 is composed of a second connecting rib plate 9 and a second rubber fender 22. Among them, both ends of the second connecting rib plate 9 are fixedly connected to the outer steel sleeve 1 and the second rubber fender 22 respectively. The structure of the second rubber fender 22 is similar to that of the first rubber fender 11, but different from the first rubber fender 11, a wear-resistant layer 21 is superimposed on the top of the second rubber fender 22 to achieve the sliding contact between the backwater side segment and the foundation structure, so as to reduce the friction coefficient and the damage to the structure.

[0092] Please refer to again Figure 14 As shown in [relevant figures], etc., the outer contour of the diaphragm plate 18 is welded to the inner wall of the outer steel sleeve 1, and the inner contour of the diaphragm plate 18 is welded to the outer wall of the inner steel cylinder. The diaphragm plate 18 has two functions. One is to increase the ability of the device main body 24 to resist impact loads, and the other is to form several watertight compartments. Each watertight compartment pre-presses several rubber rings 3 and is filled with lightweight filler 4. Even when the watertight compartment is damaged and flooded due to impact loads, the water displacement characteristic of the lightweight filler 4 in the compartment occupying space enables the device to have the characteristic of permanent flotation, and the device will not be unbalanced and tilted as a whole due to the flooding of individual segments.

[0093] Please refer to again Figures 16 to 19 As shown in [relevant figures], etc., between adjacent two anti-collision segments, the two inner steel sleeves 2 are fixedly connected by a flange plate 15, and the two outer steel sleeves 1 are fixedly connected by a connection cover plate 17. Moreover, the space between the inner steel sleeve 2 and the outer steel sleeve 1 at the connection part between the two anti-collision segments is also filled and overflowed with lightweight filler 4. Specifically, please refer to again Figures 16 - 17As shown in the figure, a flange 15 is welded to the end of the inner steel sleeve 2, and a trapezoidal stiffening plate 16 is also provided between the flange 15 and the inner steel sleeve 2. At the same time, reserved bolt holes 13 are preset on the flange 15, and the two are fixed by connecting bolts 14 matching therewith. Similarly, reserved bolt holes 13 are also provided at the end of the outer steel sleeve 1 and the end of the corresponding connecting cover plate 17, and the two are also connected and fixed through the reserved bolt holes 13.

[0094] Please refer to Figures 1 - 2 As shown in the figure, different anti-collision segments are divided into straight segments b, c, d with different sizes and curved segments a, e according to the shapes of the corresponding foundation structures to be protected. At this time, the shapes of the outer steel sleeve 1, the inner steel sleeve 2, etc. also need to be adjusted accordingly to adapt to the outer contour of the foundation structure.

[0095] In addition, please refer to Figure 20 , compared with a general hollow single-section anti-collision device (the specific structural form of the hollow single-section used in the test comparison refers to Figure 22 , which is only composed of the inner steel sleeve 2 and the outer steel sleeve 1), the descending section of the section model test curve of the array-type hollow combined-section anti-collision device in this embodiment is not obvious, and it is relatively more firm and plump, indicating that the example of the present invention has a more excellent energy absorption and dissipation effect.

[0096] In this embodiment, the principle of stiffness and strength distribution among the modules is: inner steel sleeve 2 > device main body 24 of the array-type hollow combined section > rolling module 25 or sliding module 26.

[0097] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the invention. Obviously, those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. An array-type hollow combined cross-section anti-collision device with multiple levels of defense, characterized in that, Composed of interconnected anti-collision segments, the anti-collision segments include: Device main body: It includes an inner steel sleeve, an outer steel sleeve sleeved outside the inner steel sleeve, a rubber ring placed between the inner steel sleeve and the outer steel sleeve, a lightweight filler filling the gap between the inner steel sleeve and the outer steel sleeve, and prestressed steel bundles left between the inner steel sleeve and the outer steel sleeve and passing through the rubber ring. A number of diaphragms are also arranged at intervals between the inner steel sleeve and the outer steel sleeve; A rolling module or a sliding module fixed on the device main body and in contact with the foundation structure to be protected; The rolling module includes a first connecting rib plate, an end support plate, a roller bracket and a roller component. Among them, both ends of the first connecting rib plate are respectively fixedly connected to the outer steel sleeve and the end support plate. The roller bracket is arranged on the outer surface of the end support plate, and the roller component is arranged on the roller bracket; A through slot is processed on the end support plate. The storage bin is installed on the inner surface of the end support plate, and the opening of the storage bin faces the slot. The roller bracket has the freedom to move along the slot. A limiting ability pin shaft for locking the roller bracket is also provided between the roller bracket and the end support plate. The limiting ability pin shaft breaks when subjected to a stress exceeding the set threshold, unlocking the roller bracket and the end support plate, so that the roller bracket and the roller component can be pressed into the storage bin; A first rubber fender is also provided on the outer side of the end support plate, and in the direction perpendicular to the surface of the end support plate, the first rubber fender is lower than the contact surface between the roller component and the foundation structure; The outer contour of the diaphragm is welded to the inner wall of the outer steel sleeve, and the inner contour of the diaphragm is welded to the outer wall of the inner steel sleeve to form a number of watertight compartments, and each watertight compartment pre-presses a number of the rubber rings and is filled with the lightweight filler.

2. The multi-level fortified array-type hollow combined section anti-collision device according to claim 1, characterized in that, The rubber rings are arranged in a compressed state in an array between the inner steel sleeve and the outer steel sleeve, and the rubber rings are respectively inscribed and circumscribed to the outer steel sleeve and the inner steel sleeve.

3. The multi-level fortified array-type hollow combined cross-section anti-collision device according to claim 1 or 2, characterized in that, The rubber ring has a circular ring structure, and a cavity is formed by grooving from its inner wall to the outside.

4. The multi-level fortified array-type hollow combined section anti-collision device according to claim 1, characterized in that, The lightweight filler is porous plastic.

5. The anti-collision device with an array-type hollow combined section with multi-level defenses according to claim 1, characterized in that, The prestressed steel bundles are parallel to the segment axis of the corresponding anti-collision segment and pass through the middle of the rubber ring.

6. The multi-level fortified array-type hollow combined cross-section anti-collision device according to claim 1, characterized in that, The sliding module is composed of a second connecting rib plate and a second rubber fender. Among them, both ends of the second connecting rib plate are respectively fixedly connected to the outer steel sleeve and the second rubber fender.

7. A multi-level fortified array-type hollow combined section anti-collision device according to claim 1, characterized in that, Between adjacent two anti-collision segments, the two inner steel sleeves are fixedly connected by a flange plate, the two outer steel sleeves are fixedly connected by a connecting cover plate, and the gap between the inner steel sleeve and the outer steel sleeve at the connection part between the two anti-collision segments is also filled and overflowed with a lightweight filler.

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