A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the technical field of bridge anti-seismic, in particular to an anti-seismic check block structure and a bridge anti-seismic check block system. When the bridge is under the earthquake effect in the transverse bridge direction, the main beam drives the fixed stop block to move in the transverse bridge direction, the fixed stop block makes contact with the sliding stop block in the moving process and pushes the sliding stop block to move on the friction face of the base, due to the fact that the sliding stop block makes contact with the friction face of the base, generated friction force can hinder transverse movement of the main beam, and the purpose of limiting transverse movement of the main beam of the bridge is achieved. The earthquake energy is dissipated and the transverse displacement of the main beam is reduced through the friction force generated by the movement of the sliding stop block on the friction surface of the base, the final limiting is performed through the limiting stop block, and the speed of the main beam is continuously reduced in the transverse movement process through the matching of the two blocking structures so as to control the horizontal collision force generated to the limiting stop block. The friction force generated in the transverse moving process can be adjusted through the geometric form and the friction coefficient of the friction surface of the base, so that the horizontal shearing force transmitted to the pier is reduced, and the seismic response of the pier is controlled.
本发明涉及桥梁抗震技术领域，尤其涉及一种抗震挡块结构及桥梁抗震挡块体系。桥梁在横桥向地震作用下，主梁带着固定挡块沿着横桥方向移动，固定挡块移动过程中与滑动挡块接触，推动滑动挡块在底座摩擦面移动，由于滑动挡块与底座摩擦面触压，产生的摩擦力会阻碍主梁的横移，达到限制桥梁主梁横移的目的。通过滑动挡块在底座摩擦面运动产生的摩擦力耗散地震能量，减小主梁的横向位移，再通过限位挡块进行最终限位，两种阻碍结构的配合使主梁在横移过程中速度不断减小，以控制对限位挡块产生的水平碰撞力，而横移过程中产生摩擦力的大小，可通过底座摩擦面的几何形式及其摩擦系数进行调整，以减小传递到桥墩的水平剪力，实现桥墩地震响应的控制。
The invention relates to the technical field of bridge anti-seismic, in particular to an anti-seismic check block structure and a bridge anti-seismic check block system. When the bridge is under the earthquake effect in the transverse bridge direction, the main beam drives the fixed stop block to move in the transverse bridge direction, the fixed stop block makes contact with the sliding stop block in the moving process and pushes the sliding stop block to move on the friction face of the base, due to the fact that the sliding stop block makes contact with the friction face of the base, generated friction force can hinder transverse movement of the main beam, and the purpose of limiting transverse movement of the main beam of the bridge is achieved. The earthquake energy is dissipated and the transverse displacement of the main beam is reduced through the friction force generated by the movement of the sliding stop block on the friction surface of the base, the final limiting is performed through the limiting stop block, and the speed of the main beam is continuously reduced in the transverse movement process through the matching of the two blocking structures so as to control the horizontal collision force generated to the limiting stop block. The friction force generated in the transverse moving process can be adjusted through the geometric form and the friction coefficient of the friction surface of the base, so that the horizontal shearing force transmitted to the pier is reduced, and the seismic response of the pier is controlled.
本发明涉及桥梁抗震技术领域，尤其涉及一种抗震挡块结构及桥梁抗震挡块体系。桥梁在横桥向地震作用下，主梁带着固定挡块沿着横桥方向移动，固定挡块移动过程中与滑动挡块接触，推动滑动挡块在底座摩擦面移动，由于滑动挡块与底座摩擦面触压，产生的摩擦力会阻碍主梁的横移，达到限制桥梁主梁横移的目的。通过滑动挡块在底座摩擦面运动产生的摩擦力耗散地震能量，减小主梁的横向位移，再通过限位挡块进行最终限位，两种阻碍结构的配合使主梁在横移过程中速度不断减小，以控制对限位挡块产生的水平碰撞力，而横移过程中产生摩擦力的大小，可通过底座摩擦面的几何形式及其摩擦系数进行调整，以减小传递到桥墩的水平剪力，实现桥墩地震响应的控制。
Anti-seismic stop block structure and bridge anti-seismic stop block system
抗震挡块结构及桥梁抗震挡块体系
2023-12-22
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
Bridge anti-seismic energy dissipation stop block component
| European Patent Office | 2024
High-pier bridge anti-seismic energy-consuming stop block structure
| European Patent Office | 2021
Gravity type bridge combined anti-seismic stop block and design method
| European Patent Office | 2024