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A platform for research: civil engineering, architecture and urbanism
Combined damping and limiting device for improving toughness of bridge
The invention discloses a bridge toughness improving combined damping limiting device which comprises a speed damper and an elastic inhaul cable limiting device, the speed damper and the elastic inhaul cable limiting device are connected in parallel, the elastic inhaul cable limiting device comprises a compensation element and an elastic inhaul cable, and the compensation element and the elastic inhaul cable are connected in series. The compensation element can counteract the influence of the temperature secondary internal force. According to the device, the elastic inhaul cable limiting device replaces a speed damper to share most high-frequency reciprocating vibration loads, abrasion of the speed damper is reduced, the service life of the speed damper is prolonged, meanwhile, under the action of accidental earthquake loads, the elastic inhaul cable and the speed damper can play a role in damping and limiting together, and the service life of the speed damper is prolonged. The problem that a single-speed damper is difficult to reset after displacement is solved, and the anti-seismic toughness of a bridge structure is improved. The elastic inhaul cable is connected with the temperature compensation element in series, the low-frequency reciprocating temperature deformation requirement in the structure using process is met, the adverse effect of temperature secondary internal force is eliminated, and the stability of normal operation of a bridge is improved.
本发明公开一种桥梁韧性提升组合减震限位装置，包括速度阻尼器和弹性拉索限位装置，所述速度阻尼器和所述弹性拉索限位装置并联，所述弹性拉索限位装置包括补偿元件和弹性拉索，所述补偿元件和所述弹性拉索串联，所述补偿元件能够抵消温度次内力的影响。本装置通过弹性拉索限位装置替代速度阻尼器分担大部分高频往复振动荷载，减小速度阻尼器磨耗，延长速度阻尼器的使用寿命，同时在偶发地震荷载作用下，弹性拉索还能与速度阻尼器共同发挥减震限位作用，弥补单一速度阻尼器变位后难以复位的问题，提升桥梁结构抗震韧性。弹性拉索串联温度补偿元件，适应结构使用过程中低频往复的温度变形需求，消除温度次内力不利影响，提升桥梁正常运营的稳健性。
Combined damping and limiting device for improving toughness of bridge
The invention discloses a bridge toughness improving combined damping limiting device which comprises a speed damper and an elastic inhaul cable limiting device, the speed damper and the elastic inhaul cable limiting device are connected in parallel, the elastic inhaul cable limiting device comprises a compensation element and an elastic inhaul cable, and the compensation element and the elastic inhaul cable are connected in series. The compensation element can counteract the influence of the temperature secondary internal force. According to the device, the elastic inhaul cable limiting device replaces a speed damper to share most high-frequency reciprocating vibration loads, abrasion of the speed damper is reduced, the service life of the speed damper is prolonged, meanwhile, under the action of accidental earthquake loads, the elastic inhaul cable and the speed damper can play a role in damping and limiting together, and the service life of the speed damper is prolonged. The problem that a single-speed damper is difficult to reset after displacement is solved, and the anti-seismic toughness of a bridge structure is improved. The elastic inhaul cable is connected with the temperature compensation element in series, the low-frequency reciprocating temperature deformation requirement in the structure using process is met, the adverse effect of temperature secondary internal force is eliminated, and the stability of normal operation of a bridge is improved.
本发明公开一种桥梁韧性提升组合减震限位装置，包括速度阻尼器和弹性拉索限位装置，所述速度阻尼器和所述弹性拉索限位装置并联，所述弹性拉索限位装置包括补偿元件和弹性拉索，所述补偿元件和所述弹性拉索串联，所述补偿元件能够抵消温度次内力的影响。本装置通过弹性拉索限位装置替代速度阻尼器分担大部分高频往复振动荷载，减小速度阻尼器磨耗，延长速度阻尼器的使用寿命，同时在偶发地震荷载作用下，弹性拉索还能与速度阻尼器共同发挥减震限位作用，弥补单一速度阻尼器变位后难以复位的问题，提升桥梁结构抗震韧性。弹性拉索串联温度补偿元件，适应结构使用过程中低频往复的温度变形需求，消除温度次内力不利影响，提升桥梁正常运营的稳健性。
Combined damping and limiting device for improving toughness of bridge
一种桥梁韧性提升组合减震限位装置
PANG LIN (author) / ZENG YONGPING (author) / CHEN KEJIAN (author) / YANG GUOJING (author) / LI CHUANLIN (author) / TAO QI (author) / ZHENG XIAOLONG (author) / PENG BO (author) / ZHANG DUNBAO (author) / YAO ZHIGUO (author)
2023-08-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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