A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Self-recovery buffering energy consumption type pier anti-collision device and mounting method thereof
The invention discloses a self-recovery buffering energy dissipation type pier anti-collision device which comprises an inner surrounding layer, an energy absorption layer and an outer ring composite layer which sequentially cover the periphery of a pier. The outer ring composite layer comprises a plurality of layers of thin steel plates and elastic plates which are alternately arranged and are fixed through a bonding layer; the energy absorption layer comprises a plurality of steel wire rope ring dampers arranged on the outer side of the inner surrounding layer in a surrounding mode, and the steel wire rope ring dampers are formed by winding a plurality of steel wire ropes in a stacked mode layer by layer. The corresponding layer number of the energy absorption layer is designed according to the road surface width limiting requirement, and the number of strands of steel wire ropes in the steel wire rope ring damper is adjusted to reach the anti-impact damping value. In the embodiment of the invention, when a vehicle collides with the bridge pier, the outer ring composite layer deforms, the impact load is transmitted to the energy absorption layer, and the impact dynamic energy is dissipated through friction heating and elastic deformation among the multiple strands of steel wire ropes, so that the bridge pier is prevented from being damaged; and after the load is unloaded, most deformation of the outer ring composite layer can be automatically recovered, so that the device can be continuously used after the collision of the conventional vehicle occurs.
本发明公开了一种自恢复缓冲耗能型桥墩防撞装置，包括依次包覆在桥墩外围的内围层、吸能层及外圈复合层。外圈复合层包括多层交替设置的薄钢板和弹性板，两者间通过黏固层固定；吸能层包括多个环绕设于内围层外侧的钢丝绳圈阻尼器，钢丝绳圈阻尼器采用多股钢丝绳堆垒层层绕制形成；所述吸能层根据路面限宽要求设计相应层数，并调整钢丝绳圈阻尼器内钢丝绳股数以到达抗冲击阻尼值。本发明实施例中，车辆撞击桥墩时，所述外圈复合层发生形变，将冲击载荷传递至吸能层，多股钢丝绳之间通过摩擦发热和弹性形变将冲击动能耗散掉，避免桥墩受到伤害；在卸掉载荷后，外圈复合层可自动恢复大部分形变，使装置在常规车辆碰撞发生后仍能够继续服役使用。
Self-recovery buffering energy consumption type pier anti-collision device and mounting method thereof
The invention discloses a self-recovery buffering energy dissipation type pier anti-collision device which comprises an inner surrounding layer, an energy absorption layer and an outer ring composite layer which sequentially cover the periphery of a pier. The outer ring composite layer comprises a plurality of layers of thin steel plates and elastic plates which are alternately arranged and are fixed through a bonding layer; the energy absorption layer comprises a plurality of steel wire rope ring dampers arranged on the outer side of the inner surrounding layer in a surrounding mode, and the steel wire rope ring dampers are formed by winding a plurality of steel wire ropes in a stacked mode layer by layer. The corresponding layer number of the energy absorption layer is designed according to the road surface width limiting requirement, and the number of strands of steel wire ropes in the steel wire rope ring damper is adjusted to reach the anti-impact damping value. In the embodiment of the invention, when a vehicle collides with the bridge pier, the outer ring composite layer deforms, the impact load is transmitted to the energy absorption layer, and the impact dynamic energy is dissipated through friction heating and elastic deformation among the multiple strands of steel wire ropes, so that the bridge pier is prevented from being damaged; and after the load is unloaded, most deformation of the outer ring composite layer can be automatically recovered, so that the device can be continuously used after the collision of the conventional vehicle occurs.
本发明公开了一种自恢复缓冲耗能型桥墩防撞装置，包括依次包覆在桥墩外围的内围层、吸能层及外圈复合层。外圈复合层包括多层交替设置的薄钢板和弹性板，两者间通过黏固层固定；吸能层包括多个环绕设于内围层外侧的钢丝绳圈阻尼器，钢丝绳圈阻尼器采用多股钢丝绳堆垒层层绕制形成；所述吸能层根据路面限宽要求设计相应层数，并调整钢丝绳圈阻尼器内钢丝绳股数以到达抗冲击阻尼值。本发明实施例中，车辆撞击桥墩时，所述外圈复合层发生形变，将冲击载荷传递至吸能层，多股钢丝绳之间通过摩擦发热和弹性形变将冲击动能耗散掉，避免桥墩受到伤害；在卸掉载荷后，外圈复合层可自动恢复大部分形变，使装置在常规车辆碰撞发生后仍能够继续服役使用。
Self-recovery buffering energy consumption type pier anti-collision device and mounting method thereof
一种自恢复缓冲耗能型桥墩防撞装置及其安装方法
CHEN FEI (author) / HE WEI (author) / LIANG XU (author) / LIU SHENG (author) / WANG FUHUA (author) / ZHOU CHUN (author) / ZHU DEZHEN (author) / HU LEI (author) / LI MINGZHI (author)
2023-08-15
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.
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