Crumple energy absorption system for pier protection and crumple energy absorption protection system

Abstract

The utility model relates to a crumple energy absorption system for bridge pier protection. The crumple energy absorption system comprises at least one support splicing assembly A4 and at least one support splicing assembly B5. And therefore, splicing and cohesion are realized, and two half-and-half parts or a plurality of the half-and-half parts can be spliced and combined. The support splicing assembly A4 and the support splicing assembly B5 are used for embracing the pier part 1, and certainly, preferably, a gap is formed between the support splicing assembly A4 and the support splicing assembly B5; the support splicing assembly A4 and / or the support splicing assembly B5 comprise / comprises a lower support part 7 and an upper support part 6 arranged above the lower support part 7, and the support splicing assembly A4 and / or the support splicing assembly B5 are arranged in a combined mode. The device is reasonable in design, compact in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to a collapsible energy absorption system for pier protection. Background Art

[0002] CN202321891405.X, a protection sleeve for road and bridge piers, provides a set of protection systems, but its acting force is ultimately transmitted to the pier. Moreover, under instantaneous impact, the spring cannot effectively absorb energy. CN202210320938.6, a pier protection device and a pier protection system, are not applicable to subgrade piers.

[0003] During the construction of existing bridges, there is a problem that secondary installation and support are required, that is, installation during construction and disassembly after construction, and the support for normal passage is installed again. Therefore, it causes waste of resources, and in addition, the existing support has poor energy absorption effect. Summary of the Utility Model

[0004] Generally speaking, the technical problem to be solved by the utility model is to provide a collapsible energy absorption system for pier protection.

[0005] To solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] In order to achieve hierarchical protection, a collapsible energy absorption system for pier protection includes at least one support splicing component A and at least one support splicing component B;

[0007] The support splicing component A and the support splicing component B are used to embrace the pier part;

[0008] The support splicing component A and / or the support splicing component B includes a lower support part and an upper support part arranged above the lower support part;

[0009] A connecting flange is arranged below the upper support part;

[0010] The connecting flange is connected to the upper end of the upper support part;

[0011] The thickness of the lower support part is greater than that of the upper support part.

[0012] As a further improvement of the above technical solution:

[0013] In order to facilitate disassembly, assembly and maintenance, the adjacent support splicing component A and the support splicing component B are detachably connected;

[0014] The lower support part is arranged on the base part of the pier part.

[0015] In order to reduce the wall thickness and realize the up and down connection, the lower support part includes an outer sleeve A and an inner sleeve; a filling buffer layer A is arranged between the outer sleeve A and the inner sleeve;

[0016] Support pipe sleeves are vertically distributed in the filling buffer layer A;

[0017] The support pipe sleeve includes a support rod and a screw hole sleeve provided at the end of the support rod;

[0018] There is a gap between the inner sleeve and the pier part;

[0019] The connecting flange is connected to the screw hole sleeve.

[0020] In order to achieve enhanced connection, all the upper support parts are tied together by the bandage part.

[0021] In order to achieve convenient positioning and assembly, an uneven engagement setting is provided between the support fitting component A and the support fitting component B;

[0022] A connecting rod is inserted through the uneven engagement part.

[0023] As an overall protection, a support system for passing under an existing bridge includes a pier part and a base part provided at the lower end of the pier part; a protection part is wrapped around the outer side wall of the pier part; the protection part adopts the above-mentioned support component.

[0024] As a solution for single use or reasonable combined use, in order to achieve multiple protections, a support component includes an outer sleeve A and an inner sleeve; a filling buffer layer A is provided between the outer sleeve A and the inner sleeve;

[0025] An outer sleeve B is provided on the outer side of the outer sleeve A; a filling buffer layer B is provided between the outer sleeve A and the outer sleeve B;

[0026] A transverse stiffening rib is connected between the outer sleeve A and the outer sleeve B;

[0027] Longitudinal stiffening ribs are provided in the filling buffer layer B;

[0028] The inner sleeve is used to hold the pier part.

[0029] As a further improvement of the above technical solution:

[0030] In order to better absorb energy, the filling material in the filling buffer layer A is a collapsible energy absorption box;

[0031] The filling buffer layer B is filled with isocyanate elastomer and / or polyethylene buffer layer;

[0032] The outer sleeve B adopts a steel-based composite panel.

[0033] The steel-based composite panel is composed of Q235b carbon steel and glass fiber composite;

[0034] This utility model is arranged vertically and horizontally to achieve hierarchical protection. It is connected by a flange, which is convenient for disassembly and assembly. It is integrally formed by SMC, with good corrosion resistance and flexibility. Under the same protection parameters, the support layer becomes thinner. When installed during the construction of an existing bridge, the upper layer can effectively prevent the impact of a hook excavator on the bridge section. Since the operating speed of the hook excavator is slow, a thin upper layer can be used. The speed of automobiles is relatively fast, so the lower layer is thicker. It can effectively isolate the bridge section from the outside world through the upper and lower layers, extending the service life of the bridge pier.

[0035] Under the same anti-collision level, this design requires less space. It does not affect the entry of construction vehicles and large machinery in the early stage, and does not obstruct vehicle traffic after the completion of construction and the opening to traffic; the construction period is short and the installation is convenient; compared with traditional protection facilities, this design consists of independent anti-collision units and can be produced in a standardized and modular manner. It can be manufactured and produced before the start of construction to ensure that the progress of highway construction is not hindered; it can be reused. It realizes double protection for the bridge pier and passing vehicles. Compared with existing products, this design is a flexible safety protection device, aiming to protect both personnel and the energy-absorbing anti-collision device of the bridge pier, rather than unilaterally protecting the bridge pier. It has low cost and high durability. Compared with traditional protection facilities, the total cost of this safety protection system is lower, the energy absorption degree is better, and the durability is better; it has a hierarchical and multi-dimensional protection.

[0036] This design is a direct elastic deformation type protection device, which is spliced by independent anti-collision units. It relies on the ability of the material and structure to recover elastic deformation by itself to convert and release impact energy. And because the internal filling material is EVA (ethylene-vinyl acetate copolymer), it has large elasticity and flexibility, which can extend the impact time, thereby reducing the impact force to achieve the effect of protecting vehicles and bridge piers. It can be applied to the anti-collision protection of various highway bridge piers during the early construction and later traffic.

[0037] This utility model is reasonable in design, low in cost, strong and durable, safe and reliable, simple in operation, time-saving and labor-saving, cost-saving, compact in structure and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the use of this utility model.

[0039] Figure 2 It is a structural schematic diagram of the support splicing component of this utility model.

[0040] Figure 3 It is a structural schematic diagram of the upper support part of this utility model.

[0041] Figure 4 It is a structural schematic diagram of the support splicing component B of this utility model.

[0042] Figure 5It is a schematic diagram of the usage structure of the support splicing component A of the present utility model.

[0043] Figure 6 It is a schematic diagram of the support pipe sleeve structure of the present utility model.

[0044] Figure 7 It is a schematic diagram of the connecting rod structure of the present utility model.

[0045] Figure 8 It is another schematic diagram of the outer sleeve B of the present utility model.

[0046] Figure 9 It is a schematic diagram of the filling buffer layer B of the present utility model.

[0047] Figure 10 It is a schematic diagram of the filling buffer layer A of the present utility model.

[0048] Figure 11 It is a schematic diagram of the transverse stiffening rib of the present utility model.

[0049] Figure 12 It is a schematic diagram of the collapsible energy absorption box of the present utility model.

[0050] Wherein: 1. Pier part; 2. Base part; 3. Protection part; 4. Support splicing component A; 5. Support splicing component B; 6. Upper support part; 7. Lower support part; 8. Support pipe sleeve; 9. Support rod; 10. Screw hole sleeve; 11. Connecting flange; 12. Bandage part; 13. Connecting rod; 14. Outer sleeve A; 15. Inner sleeve; 16. Filling buffer layer A; 17. Outer sleeve B; 18. Filling buffer layer B; 19. Transverse stiffening rib; 20. Longitudinal stiffening rib; 21. Collapsible energy absorption box. Specific implementation mode

[0051] As Figures 1-12 shown, a collapsible energy absorption system for pier protection in this embodiment is specifically as Figure 1 shown. A collapsible energy absorption system for pier protection in this embodiment includes at least one support splicing component A4 and at least one support splicing component B5; thus realizing splicing and clamping, which can be two in half or multiple splicing combinations.

[0052] The support splicing component A4 and the support splicing component B5 are used to clamp the pier part 1. Of course, it is preferred that there is a gap between them;

[0053] The support splicing component A4 and / or the support splicing component B5 include a lower support part 7 and an upper support part 6 arranged above the lower support part 7, and they are arranged in combination.

[0054] A connecting flange 11 is provided below the upper supporting portion 6 ; the connecting flange 11 is connected to the upper end of the upper supporting portion 6 ; thus achieving upper and lower installation and fixation.

[0055] The thickness of the lower supporting portion 7 is greater than that of the upper supporting portion 6, thereby meeting different working conditions.

[0056] The adjacent support assembly A4 and support assembly B5 can be detachably connected to achieve flexible assembly; the lower support part 7 is arranged on the base part 2 of the pier part 1 to achieve load-bearing. Compared with the traditional bundling on the pier, the pier sits on the base, thereby reducing the stress on the pier.

[0057] The lower supporting portion 7 includes an outer sleeve A14 and an inner sleeve 15; a filling buffer layer A16 is provided between the outer sleeve A14 and the inner sleeve 15 to achieve collision buffering.

[0058] A supporting pipe sleeve 8 is vertically distributed in the filling buffer layer A16, which further enables it to bear the upper weight, prevent the lower part from being loaded for a long time, and prevent the lower part from being subjected to downward pressure.

[0059] The support sleeve 8 includes a support rod 9 and a screw sleeve 10 arranged at the end of the support rod 9; there is a gap between the inner sleeve 15 and the pier part 1; the connecting flange 11 is connected to the screw sleeve 10 to realize the bolt connection of the flange.

[0060] All the upper supporting parts 6 are bound together by the bandage part 12 to serve as an auxiliary connection. They are mainly used during construction and can be disassembled after the road is opened to traffic.

[0061] A concave-convex engagement arrangement is provided between the support assembly A4 and the support assembly B5, thereby achieving rapid positioning and fixation.

[0062] A connecting rod 13 is passed through the concave-convex bite point to achieve a fixed setting.

[0063] Preferably, the filling buffer layer A16 is filled with two-component polyurea or two-component isocyanate elastomer to achieve filling buffering; the outer cover A14 and / or the inner cover 15 adopts an SMC one-piece molded fiber composite layer to achieve fixed support; the filler in the filling buffer layer A is a crush energy absorption box; thus, it has good cushioning and shock absorption effects.

[0064] As an extension, the support system for passing under an existing bridge in this embodiment includes a pier portion 1 and a base portion 2 arranged at the lower end of the pier portion 1; a protective portion 3 is wrapped around the outer wall of the pier portion 1; and the protective portion 3 adopts the above-mentioned support assembly.

[0065] During construction, the support splicing components A4 and B5 are spliced together. The upper support part 6 and the lower support part 7 are connected through the connecting flange 11 and the screw hole sleeve 10. By filling the filling buffer layer A16, support is achieved through the outer sleeve A14 and the inner sleeve 15. The splicing is completed through the connecting rod 13, and strengthening and bundling are achieved through the bandage part 12. The support weight is borne by the support rod 9, and fixed support is achieved through the support pipe sleeve 8. The pier part 1 is bundled through the protection part 3.

[0066] Advantages of this safety protection system:

[0067] This utility model is small in volume and has no impact on the passing of vehicles. It is very difficult for traditional concrete protection facilities to achieve protection more than 2 meters above the ground. This protection facility can provide simultaneous protection for the upper and lower parts, and can achieve graded protection according to different impact sources. During the early construction process, the lower part can prevent construction vehicles from directly hitting the pier, and the upper part can prevent large high-altitude material handling machinery such as cranes from rubbing against the pier, controlling the impact force within an acceptable range and protecting the pier from damage to the greatest extent.

[0068] It has higher safety performance. When traditional protection facilities are impacted or rubbed, due to being too hard / insufficient hardness, it is very easy to damage the bridge deck / there are risks such as self-breaking and peeling off. This safety protection system is integrally formed, with both hardness and flexibility, eliminating the possibility of secondary damage.

[0069] As Figures 1-11 shown, the support component of this embodiment includes an outer sleeve A14 and an inner sleeve 15; a filling buffer layer A16 is provided between the outer sleeve A14 and the inner sleeve 15;

[0070] An outer sleeve B17 is provided on the outside of the outer sleeve A14; a filling buffer layer B18 is provided between the outer sleeve A14 and the outer sleeve B17; it can be set on the outer layer of the Figures 1-7 outer sleeve or used alone.

[0071] A transverse stiffening rib 19 is connected between the outer sleeve A14 and the outer sleeve B17; a longitudinal stiffening rib 20 is provided in the filling buffer layer B18; to achieve reinforcement and support.

[0072] The inner sleeve 15 is used to hold the pier part 1.

[0073] The filler in the filling buffer layer A16 is a collapsible energy-absorbing box 21, such as a Ceab-200 collapsible energy-absorbing box;

[0074] The collapsible energy-absorbing box 21 is an inner and outer double hexagonal sleeve body, and a rib plate is connected to the middle of the sides between the inner and outer double hexagonal sleeve bodies;

[0075] A polyethylene buffer layer is filled at the center of the inside of the collapsible energy-absorbing box 21. Thus, buffer and energy absorption are achieved;

[0076] The filling buffer layer B18 is filled with isocyanate elastomer and / or polyethylene buffer layer to improve the energy absorption effect;

[0077] The outer casing B17 is made of a steel-based composite panel, so as to have both elasticity and rigidity at the same time.

[0078] As a specific introduction, the steel-based composite panel is composed of Q235b carbon steel and glass fiber composite;

[0079] Outer casing B17, filling buffer layer B18, transverse stiffening rib 19, longitudinal stiffening rib 20.

[0080] Preferably, the steel-based composite panel is composed of 6mm Q235b carbon steel and 5mm glass fiber composite material; the vehicle-facing side of the protection device in this embodiment is rigid collapse energy dissipation, and the pier side is flexible protection energy absorption, realizing multi-level protection of the pier.

[0081] The present utility model is fully described for the purpose of clearer disclosure, and the prior art will not be listed one by one.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; it is obvious for those skilled in the art to combine multiple technical solutions of the present utility model. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A collapsible energy absorption system for pier protection, characterized in that: Comprising at least one support splicing component A (4) and at least one support splicing component B (5); The support splicing component A (4) and the support splicing component B (5) are used to embrace the pier part (1); The support splicing component A (4) and / or the support splicing component B (5) includes a lower support part (7) and an upper support part (6) arranged above the lower support part (7); A connecting flange (11) is arranged below the upper support part (6); The upper end of the connecting flange (11) is connected to the upper support part (6); The thickness of the lower support part (7) is greater than the thickness of the upper support part (6).

2. The collapsible energy absorption system for pier protection according to claim 1, wherein: The adjacent support splicing component A (4) and the support splicing component B (5) are detachably connected; The lower support part (7) is arranged on the base part (2) of the pier part (1).

3. A collapsible energy-absorbing system for pier protection according to claim 1 or 2, characterized in that: The lower support part (7) includes an outer sleeve A (14) and an inner sleeve (15); a filling buffer layer A (16) is arranged between the outer sleeve A (14) and the inner sleeve (15); Support pipe sleeves (8) are vertically distributed in the filling buffer layer A (16); The support pipe sleeve (8) includes a support rod (9) and a screw hole sleeve (10) arranged at the end of the support rod (9); There is a gap between the inner sleeve (15) and the pier part (1); The connecting flange (11) is connected to the screw hole sleeve (10).

4. A collapsible energy-absorbing system for pier protection according to claim 3, characterized in that: All the upper support parts (6) are bundled by a bandage part (12).

5. A collapsible energy-absorbing system for pier protection according to claim 3, characterized in that: An uneven occlusion setting is arranged between the support splicing component A (4) and the support splicing component B (5); A connecting rod (13) is inserted through the uneven occlusion part.

6. The collapsible energy absorption system for pier protection according to claim 3, wherein: The filling buffer layer A (16) is filled with two-component polyurea or two-component isocyanate elastomer; The outer sleeve A (14) and / or the inner sleeve (15) adopt a fiber composite layer formed by SMC in one piece; The filler in the filling buffer layer A (16) is a collapsible energy-absorbing box (21); The collapsible energy-absorbing box (21) is an inner and outer double hexagonal sleeve body, and rib plates are connected to the middle of the sides between the inner and outer double hexagonal sleeve bodies; A polyethylene buffer layer is filled at the center inside the collapsible energy-absorbing box (21).

7. A crash energy absorption protection system, characterized in that: Including a pier part (1) and a base part (2) arranged at the lower end of the pier part (1); a protective part (3) is wrapped around the outer side wall of the pier part (1); the protective part (3) adopts the collapsible energy-absorbing system according to any one of claims 1-6.

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