A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Layered gradient honeycomb filling pier anti-collision device with negative poisson ratio
The invention discloses a layered gradient honeycomb filling pier anti-collision device with a negative poisson ratio. The device comprises an outer-layer head-on collision panel, a layered gradient honeycomb filling sandwich layer and a steel plate inner anti-collision layer; the sandwich layer is composed of concave regular hexagon negative poisson ratio honeycomb framework and foam concrete materials filled in the honeycomb framework. All the components are formed by bonding epoxy resin glue, and the anti-collision sandwich structures are connected into a whole through I-shaped toggle clips. The device can achieve the effect of layered gradient through various forms such as cell wall thickness gradient, filler density gradient and cell element height gradient. Compared with a traditional anti-collision device, the device can absorb vehicle collision energy through plastic deformation and brittle deformation of materials, the energy absorption process can be controlled by changing the gradient form and the gradient coefficient, the vehicle collision force peak value is reduced, and the safety of piers and vehicles can be protected at the same time. The device is small in occupiedarea, convenient and fast to replace and small in adverse effect on traffic during replacement.
本发明公开了一种分层梯度负泊松比蜂窝填充桥墩防撞装置，包括：外层迎撞面板，分层梯度蜂窝填充夹芯层，钢板内防撞层；夹芯层由内凹正六边形负泊松比蜂窝骨架与其内部填充的泡沫混凝土材料组成。各组件均由环氧树脂胶粘接而成，防撞夹芯结构之间通过“工字型”夹扣连接成一个整体。本装置可通过胞壁厚度梯度，填充物密度梯度，胞元高度梯度等多种形式达到分层梯度的效果。与传统防撞装置相比，本装置可通过材料的塑性变形和脆性变形吸收车辆撞击能量，并能通过改变梯度形式和梯度系数控制能量吸收过程，降低车辆撞击力峰值，能同时保护桥墩和车辆的安全。本装置占地面积较小，更换方便快捷，更换时对交通造成的不利影响较小。
Layered gradient honeycomb filling pier anti-collision device with negative poisson ratio
The invention discloses a layered gradient honeycomb filling pier anti-collision device with a negative poisson ratio. The device comprises an outer-layer head-on collision panel, a layered gradient honeycomb filling sandwich layer and a steel plate inner anti-collision layer; the sandwich layer is composed of concave regular hexagon negative poisson ratio honeycomb framework and foam concrete materials filled in the honeycomb framework. All the components are formed by bonding epoxy resin glue, and the anti-collision sandwich structures are connected into a whole through I-shaped toggle clips. The device can achieve the effect of layered gradient through various forms such as cell wall thickness gradient, filler density gradient and cell element height gradient. Compared with a traditional anti-collision device, the device can absorb vehicle collision energy through plastic deformation and brittle deformation of materials, the energy absorption process can be controlled by changing the gradient form and the gradient coefficient, the vehicle collision force peak value is reduced, and the safety of piers and vehicles can be protected at the same time. The device is small in occupiedarea, convenient and fast to replace and small in adverse effect on traffic during replacement.
本发明公开了一种分层梯度负泊松比蜂窝填充桥墩防撞装置，包括：外层迎撞面板，分层梯度蜂窝填充夹芯层，钢板内防撞层；夹芯层由内凹正六边形负泊松比蜂窝骨架与其内部填充的泡沫混凝土材料组成。各组件均由环氧树脂胶粘接而成，防撞夹芯结构之间通过“工字型”夹扣连接成一个整体。本装置可通过胞壁厚度梯度，填充物密度梯度，胞元高度梯度等多种形式达到分层梯度的效果。与传统防撞装置相比，本装置可通过材料的塑性变形和脆性变形吸收车辆撞击能量，并能通过改变梯度形式和梯度系数控制能量吸收过程，降低车辆撞击力峰值，能同时保护桥墩和车辆的安全。本装置占地面积较小，更换方便快捷，更换时对交通造成的不利影响较小。
Layered gradient honeycomb filling pier anti-collision device with negative poisson ratio
一种分层梯度负泊松比蜂窝填充桥墩防撞装置
ZHOU HONGYUAN (author) / JIA KUNCHENG (author) / WANG XIAOJUAN (author)
2021-01-15
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
Pier anti-collision facility with negative poisson ratio effect and design method thereof
| European Patent Office | 2021
Rectangular pier anti-collision method and pier anti-collision device
| European Patent Office | 2024