CN220146868U - Energy consumption core material, composite sandwich structure, anti-collision body and pier anti-collision body - Google Patents
Energy consumption core material, composite sandwich structure, anti-collision body and pier anti-collision body Download PDFInfo
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- CN220146868U CN220146868U CN202320261187.5U CN202320261187U CN220146868U CN 220146868 U CN220146868 U CN 220146868U CN 202320261187 U CN202320261187 U CN 202320261187U CN 220146868 U CN220146868 U CN 220146868U
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- 239000011162 core material Substances 0.000 title claims abstract description 54
- 238000005265 energy consumption Methods 0.000 title claims abstract description 37
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 229920002635 polyurethane Polymers 0.000 claims abstract description 7
- 239000004814 polyurethane Substances 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 45
- 238000007789 sealing Methods 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 4
- 239000004570 mortar (masonry) Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 11
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses an energy consumption core material, a composite sandwich structure, an anti-collision body and a pier anti-collision body. The utility model firstly provides an energy-consumption core material, a composite sandwich structure and an anti-collision body. The energy-consumption core material is of a three-layer structure with a polyurethane layer clamped between two foamed aluminum layers. And meanwhile, the pier anti-collision body is provided, the pier anti-collision body is wrapped on the outer surface of the pier body, the bottom plate is laid on the upper surface of the foundation around the pier body, the back plate is tightly attached to the outer surface of the pier body and fixedly connected with the bottom plate, the flange type cover plate is parallel to the back plate and is filled with energy-consuming core materials in cavities surrounded by the left reinforcing plate and the right reinforcing plate, and the components are necessarily bolted. The pier anti-collision body can comprise a straight component and an arc component, wherein the straight component is clung to the outer surface of the straight wall area of the pier body, and the arc component is clung to the outer surface of the arc wall area of the pier body. The product improves the performance of the energy-consuming core material and expands design options. The bridge pier anti-collision body has obvious structure and practical advantages, and can improve the emergency response speed of bridge traffic line rush repair and rush pass in various working conditions.
Description
Technical Field
The utility model relates to an energy-consumption anti-collision structure, in particular to an energy-consumption core material of a composite structure, an anti-collision structure and an anti-collision body containing the core material, and belongs to the technical fields of mechanical materials and engineering protection devices.
Background
The highway bridge is an important form of a mountain area transportation line, and the safety of the highway bridge is also the most important link for guaranteeing the penetration of the mountain area transportation line and the normal operation of the mountain area social life. Generally, ground road damage can be replaced by temporary lines, but road bridges are difficult to quickly rescue, thus blocking and exposing the associated social life subsystems to the effects of being passive. In mountain areas, particularly in mountain canyon areas, highway bridge piers are pulled up from the valley, and are actually in the most concentrated disaster causing range of various geological disasters in the mountain areas. Therefore, the improvement of the protection level of the bridge pier becomes a key for ensuring the safety and stability of the highway bridge in the mountain area. In order to improve the safety of the bridge pier in the mountain area, one of the common means is to cover a layer of buffer protection structure on the outer surface of the bridge pier in the mountain area, so as to effectively reduce the damage of disaster soil and stone impact and achieve the purpose of protecting the bridge pier.
In the prior art, the foamed aluminum material is introduced into the bridge pier protective structure, so that obvious technical effects are achieved. CN103556591a provides a double-cavity elliptic eccentric pier wrapping shock-resistant structure, which comprises an inner pipe fitting and an outer pipe fitting which are sleeved inside and outside, wherein the inner pipe fitting and the outer pipe fitting are sleeved eccentrically, the inner pipe fitting and the outer pipe fitting are axially parallel, and a damping material layer is filled between the inner pipe fitting and the outer pipe fitting. The foamed aluminum sandwich board reinforced mountain area cross mud-rock flow pier impact structure optimization research (Wang Dongpo and the like, vibration and impact, volume 35, period 10 in 2016) and the double-layer foamed aluminum sandwich board rolling stone impact resistance structure optimization research (Cheng Peng and the like, vibration and impact, volume 37, period 5 in 2018) all disclose that the foamed aluminum and steel plates are combined into a composite sandwich structure to be applied to a pier protection device, and the energy consumption buffering performance of the composite sandwich structure is tested.
The prior art currently has two general disadvantages: first, the energy dissipation buffer material of the composite sandwich structure is limited to one type, and mainly is foamed aluminum. Although aluminum foam is an excellent energy dissipation buffer material, the singleness limits the possibilities of selection of improved means of energy dissipation buffer performance in the design of composite sandwich structures, further limiting the technical advantages of composite sandwich structures. Secondly, the existing pier anti-collision structure/device does not have an integral modularized conception, and the rapid response scheme of 'off-site prefabrication and on-site assembly' cannot be well adopted to meet the requirement of disaster rescue time in the design and use process, and a gap exists between the rapid response scheme and the rush-repair and rush-pass target of the mountain bridge transportation line.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and provides an energy-consumption core material with a composite structure, an anti-collision structure and an anti-collision body using the core material.
In order to achieve the above purpose, the present utility model firstly provides an energy-dissipating core material, which has the following technical scheme:
an energy dissipating core material, characterized in that: the energy-consumption core material is of a three-layer structure with a polyurethane layer clamped between two foamed aluminum layers.
The energy-consumption core material is a novel composite structure of two energy-consumption buffer materials of the existing foamed aluminum and polyurethane, and the energy-consumption buffer efficiency is improved by recombining the two materials.
The energy consumption core material is optimized in such a way that the thickness of the two foamed aluminum layers is different.
The utility model also provides a composite sandwich structure and a further anti-collision body, and the technical scheme is as follows:
the utility model provides a compound sandwich structure, includes panel, core, sealing strip, its characterized in that: the core material is the energy-consumption core material.
An anti-collision body, characterized in that: comprising the composite sandwich structure.
The composite sandwich structure is realized based on the energy-consumption core material, and the energy-consumption core material can be more commonly used on different anti-collision bodies by packaging and forming the energy-consumption core material. The anti-collision body comprises the composite sandwich structure and is used as a consumable buffering utility part.
The utility model further provides a pier anti-collision body based on the technical scheme of the energy-consumption core material, and the pier anti-collision body provides specific impact protection effect for piers. The specific technical scheme is as follows:
utilize pier anticollision body that above-mentioned power consumption core material realized, its characterized in that: the pier anti-collision body is wrapped on the outer surface of the pier body, and the bottom plate is paved on the upper surface of the foundation around the pier body; the backboard is tightly attached to the outer surface of the pier body and is fixedly connected with the bottom board, the separation reinforcing plate is vertically and fixedly connected with the backboard, and the free edge of the separation reinforcing plate is provided with a bolt hole; the flange type cover plate is positioned between the two spaced reinforcing plates and parallel to the back plate, four outer vertical edges of the flange type cover plate are perpendicular to the plane of the flange type cover plate, bolt holes are formed in the outer vertical edges, and the left outer vertical edge and the right outer vertical edge of the flange type cover plate are respectively bolted with the left side and the right side of the spaced reinforcing plates; the cavity surrounded by the back plate, the flange cover plate and the two spaced reinforcing plates is filled with energy-consuming core materials; the upper end face of the pier anti-collision body is provided with a sealing plate, and the sealing plate is bolted with the upper outer vertical edge of the flange type cover plate.
The pier anti-collision body is an energy-consumption anti-collision structure body tightly wrapped on the outer surface of the pier body. The bottom plate and the back plate cover the continuous surfaces of the pier body and the foundation. The plane of the separation stiffening plate is perpendicular to the plane of the back plate, so that the back plate is segmented. The energy-consuming core material is inlaid in the segmented space, the flange type cover plate covers the energy-consuming core material and is fixedly compacted by bolting with the separation stiffening plates on the left side and the right side. The sealing plate of the upper end face of the pier anti-collision body is fixed by bolting with the upper edge of the flange type cover plate.
Based on the structure, the bridge pier anti-collision body can be optimized singly or in combination in different aspects:
further, the pier anti-collision body comprises a straight component and an arc component, the straight component is clung to the outer surface of the straight wall area of the pier body, and the arc component is clung to the outer surface of the arc wall area of the pier body.
Further, the straight component comprises at least two straight parts, the arc component comprises at least two arc parts, and the sum of the radians of the two arc parts is equal to the radian of the arc wall area of the pier body. In order to improve interchangeability of the arc-shaped pieces, further, the radians of the arc-shaped pieces are equal.
The pier anti-collision body further comprises mortar joint filling between the back plate and the outer surface of the pier body, and the thickness of the foamed aluminum layer of the energy-consumption core material close to the collision face is smaller than that of the other layer.
The whole pier anti-collision body is similar to a snare structure wrapping the pier body, and can extend to the pier top cap to climb up according to the protection requirement of the pier body. The specific scheme is as follows: the pier anti-collision body can comprise at least two layers, each interlayer backboard is mutually independent, an upper layer and a lower layer are bolted through the upper outer vertical edges and the lower outer vertical edges of the flange type cover plate, and rubber pads are arranged between the upper layer and the lower layer.
Compared with the prior art, the utility model has the beneficial effects that: (1) Provided is an energy-consuming core material, which improves energy-consuming buffer performance by combining new structures of an existing buffer material. In the design of the energy consumption performance of the energy consumption core material in different working conditions, the materials of the two buffer materials can be fully utilized through different combinations of the buffer material layers, and design options meeting design targets are expanded. (2) The composite sandwich structure and the anti-collision body provided by the utility value of the energy-consumption core material in different anti-collision structures is expanded. (3) The pier anticollision body that provides has obvious structure and practical advantage, includes: firstly, when the pier anti-collision body is impacted to be damaged locally, the anti-collision function can be recovered rapidly and completely only by replacing the flange type cover plate and the energy-consumption core material at the position. Secondly, after the back plate wraps the outer surface of the pier body, the gap parameters of the reinforcing plates and the specification parameters of the energy-consumption core materials are separated through design, so that the energy-consumption core materials can be always clung to the pier body no matter what fluctuation the outer surface of the pier body changes, and the optimal energy-consumption buffering effect is achieved. Therefore, the whole pier anti-collision body can adapt to the pier body with a special shape. Thirdly, the backboard is a continuous board tightly wrapped around the pier body, so that the impact force applied to the pier body can be uniformly diffused to the periphery as much as possible, and the pressure is reduced. Fourth, the whole snare structure that wraps up the pier shaft that is similar to of pier anticollision body can extend to pier top cap according to the protection requirement of pier shaft, and expansibility is good. Fifthly, the whole pier anti-collision body is of a near-modularized structure, and can be quickly installed on site after being processed into prefabricated parts outside the site. Especially, the bridge pier body can be designed and processed for standby according to the shape of a common pier body, the emergency response speed of various working conditions is improved, and the time requirement of rush-repair and rush-pass of a bridge traffic line is met as much as possible.
Drawings
Fig. 1 is a schematic diagram of the energy dissipating core structure.
Fig. 2 is a schematic cross-sectional structure of a composite sandwich structure.
Fig. 3 is a schematic view of the installation position of the pier collision avoidance body.
Fig. 4 is a schematic view of a pier collision avoidance body.
Fig. 5 is a schematic diagram of a flange-type cover plate structure.
FIG. 6 is a schematic view of a combination structure of a straight component and an arc component.
Fig. 7 is a schematic view of a multi-layered pier collision avoidance structure.
The numerical designations in the drawings are respectively: 1 energy consumption core 11 foam aluminum layer 12 polyurethane layer 21 panel 22 sealing strip 31 bottom plate 32 back plate 33 separation stiffening plate 331 free edge 41 pier body 42 foundation 34 flange type cover plate 341 outer vertical edge 35 cavity 36 sealing plate 37 straight piece 38 arc piece
Detailed Description
Preferred embodiments of the present utility model will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1, an energy-consuming core material is processed.
Fig. 1 is a schematic diagram of the energy dissipating core structure. The energy dissipation core material 1 is of a three-layer structure with a polyurethane layer 12 sandwiched between two foamed aluminum layers 11.
The foamed aluminum layer 11 is closely attached to the polyurethane layer 12.
In this embodiment, the two aluminum foam layers 11 are different in thickness.
Example two
As shown in fig. 2, a composite sandwich structure is fabricated.
Fig. 2 is a schematic cross-sectional structure of a composite sandwich structure. The composite sandwich structure comprises a panel 21, a core material and sealing strips 22, wherein the core material is the energy-consumption core material 1 in the first embodiment.
The panel 21 may have upper and lower sides and the sealing strip 22 may have front, rear, left and right sides, as needed.
Example III
As shown in fig. 3 to 6, a pier collision preventing body is designed.
Fig. 3 is a schematic structural view of an installation position of an anti-collision body of the bridge pier, fig. 4 is a schematic structural view of the anti-collision body of the bridge pier, and fig. 5 is a schematic structural view of a flange type cover plate. The pier anti-collision body is wrapped on the outer surface of the pier body 41, and the bottom plate 31 is paved on the upper surface of the foundation 42 around the pier body 41; the back plate 32 is tightly attached to the outer surface of the pier body 41 and is fixedly connected with the bottom plate 31, the separation reinforcing plate 33 is vertically and fixedly connected with the back plate 32, and the free edge 331 of the separation reinforcing plate 33 is provided with a bolt hole; the flange type cover plate 34 is positioned between the two spaced reinforcing plates 33 and parallel to the back plate 32, four outer vertical edges 341 of the flange type cover plate 34 are perpendicular to the plane of the flange type cover plate 34, bolt holes are formed in the outer vertical edges 341, and the left outer vertical edge 341 and the right outer vertical edge 341 of the flange type cover plate 34 are respectively bolted with the left and right spaced reinforcing plates 33; the cavity 35 surrounded by the back plate 32, the flange cover plate 34 and the two spaced reinforcing plates 33 is filled with the energy-consumption core material 1; the upper end face of the pier anti-collision body is provided with a sealing plate 36, and the sealing plate 36 is bolted with an upper outer vertical edge 341 of the flange type cover plate 34. Mortar is filled between the back plate 32 and the outer surface of the pier body 41, and the thickness of the foamed aluminum layer 11 of the energy-consumption core material 1 close to the collision face is smaller than that of the other layer.
The embodiment is designed into a combined structure of a straight component and an arc component. FIG. 6 is a schematic view of a combination structure of a straight component and an arc component. The pier anti-collision body comprises a straight component and an arc component, wherein the straight component is clung to the outer surface of the straight wall area of the pier body 41, and the arc component is clung to the outer surface of the arc wall area of the pier body 41. The straight component comprises at least two straight parts 37, the arc component comprises at least two arc parts 38, and the sum of the radians of the two arc parts 38 is equal to the radian of the arc wall area of the pier body 41. In this embodiment, there are three arcuate members 38, and the radians of each arcuate member 38 are equal.
Example two
As shown in fig. 7, a multi-layered pier collision preventing body is designed.
Fig. 7 is a schematic view of a multi-layered pier collision avoidance structure. The multi-layer pier collision-preventing body comprises at least two layers, each interlayer backboard 32 is mutually independent, an upper layer and a lower layer are bolted through an upper outer vertical edge 341 and a lower outer vertical edge 341 of a flange cover plate 34, and rubber pads are arranged between the upper layer and the lower layer.
Claims (12)
1. Energy consumption core material, its characterized in that: the energy-consumption core material (1) is of a three-layer structure formed by two foamed aluminum layers (11) and a polyurethane layer (12) clamped in the middle.
2. The energy dissipating core material of claim 1, wherein: the two foamed aluminum layers (11) are different in thickness.
3. Composite sandwich structure, including panel (21), core, sealing strip (22), its characterized in that: the core material is the energy-dissipating core material (1) according to any one of claims 1-2.
4. Anticollision body, its characterized in that: a composite sandwich structure comprising the composite of claim 3.
5. Pier anticollision body, its characterized in that: comprising the energy-consuming core material (1) according to claim 1 or 2; the pier anti-collision body is wrapped on the outer surface of the pier body (41), and the bottom plate (31) is paved on the upper surface of the foundation (42) around the pier body (41); the backboard (32) is tightly attached to the outer surface of the pier body (41) and is fixedly connected with the bottom board (31), the separation reinforcing plate (33) is vertically and fixedly connected with the backboard (32), and the free edge (331) of the separation reinforcing plate (33) is provided with a bolt hole; the flange type cover plate (34) is positioned between the two spaced reinforcing plates (33) and is parallel to the back plate (32), four outer vertical edges (341) of the flange type cover plate (34) are perpendicular to the plane of the flange type cover plate (34), bolt holes are formed in the outer vertical edges (341), and the left outer vertical edges (341) and the right outer vertical edges (341) of the flange type cover plate (34) are respectively bolted with the left side and the right side of the spaced reinforcing plates (33); the cavity (35) surrounded by the back plate (32), the flange cover plate (34) and the two divided reinforcing plates (33) is filled with the energy-consumption core material (1); the upper end face of the pier anti-collision body is provided with a sealing plate (36), and the sealing plate (36) is bolted with an upper outer vertical edge (341) of the flange type cover plate (34).
6. The pier collision avoidance of claim 5, wherein: mortar is filled between the back plate (32) and the outer surface of the pier body (41), and the thickness of the foamed aluminum layer (11) of the energy-consumption core material (1) close to the collision face is smaller than that of the other layer.
7. The pier collision avoidance of claim 6, wherein: comprises at least two layers, each interlayer backboard (32) is mutually independent, the upper and lower layers are bolted by the upper and lower outer vertical edges (341) of the flange cover plate (34), and rubber pads are arranged between the upper and lower layers.
8. The pier collision avoidance of claim 5, wherein: the novel straight-shaped assembly comprises a straight-shaped assembly and an arc-shaped assembly, wherein the straight-shaped assembly is clung to the outer surface of a straight wall area of the pier body (41), and the arc-shaped assembly is clung to the outer surface of an arc-shaped wall area of the pier body (41).
9. The pier collision avoidance of claim 8, wherein: the straight assembly comprises at least two straight parts (37), the arc assembly comprises at least two arc parts (38), and the sum of the radians of the two arc parts (38) is equal to the radian of the arc wall area of the pier body (41).
10. The pier collision avoidance of claim 9, wherein: the arc-shaped pieces (38) have equal radians.
11. The pier collision avoidance apparatus according to any one of claims 8 to 10, wherein: mortar is filled between the back plate (32) and the outer surface of the pier body (41), and the thickness of the foamed aluminum layer (11) of the energy-consumption core material (1) close to the collision face is smaller than that of the other layer.
12. The pier collision avoidance of claim 11, wherein: comprises at least two layers, each interlayer backboard (32) is mutually independent, the upper and lower layers are bolted by the upper and lower outer vertical edges (341) of the flange cover plate (34), and rubber pads are arranged between the upper and lower layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320261187.5U CN220146868U (en) | 2023-02-20 | 2023-02-20 | Energy consumption core material, composite sandwich structure, anti-collision body and pier anti-collision body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320261187.5U CN220146868U (en) | 2023-02-20 | 2023-02-20 | Energy consumption core material, composite sandwich structure, anti-collision body and pier anti-collision body |
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| CN220146868U true CN220146868U (en) | 2023-12-08 |
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| CN202320261187.5U Active CN220146868U (en) | 2023-02-20 | 2023-02-20 | Energy consumption core material, composite sandwich structure, anti-collision body and pier anti-collision body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118186996A (en) * | 2024-05-14 | 2024-06-14 | 山东大学 | Multi-stage flexible anti-collision device for bridge pier, intelligent sensing anti-collision system and method |
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2023
- 2023-02-20 CN CN202320261187.5U patent/CN220146868U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118186996A (en) * | 2024-05-14 | 2024-06-14 | 山东大学 | Multi-stage flexible anti-collision device for bridge pier, intelligent sensing anti-collision system and method |
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