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A platform for research: civil engineering, architecture and urbanism
Multi-dimensional shock-absorbing damper of flat-turning movable bridge
The invention belongs to the technical field of bridge structure vibration control, and provides a multi-dimensional shock-absorbing damper of a flat-turning movable bridge, which comprises a disc-shaped bearing bush, a foamed aluminum shock-absorbing layer, a damper shell and an anti-seismic pin. The disc-shaped bearing bush is installed on the main shaft, the anti-seismic pin locks the disc-shaped bearing bush on the damper shell, and the foamed aluminum damping layer surrounds the periphery of the disc-shaped bearing bush. When an earthquake occurs, the anti-seismic pin is firstly cut off, and the main shaft and the disc-shaped bearing bush extrude the foamed aluminum damping layer together in the horizontal direction. The foamed aluminum damping layer has strong energy dissipation and damping effects, so that seismic kinetic energy can be absorbed, and the purpose of damping is achieved; and the original rigid constraint between the main shaft and the bridge pier can be converted into flexible constraint, so that the influence of inertia force on the main shaft and the bridge pier is reduced. The disc-shaped foamed aluminum has strong energy dissipation and shock absorption characteristics and small elastic modulus, has good shock absorption performance for earthquakes from all directions, and enables the displacement of the main shaft relative to the bridge pier to be controlled within a relatively safe range.
本发明属于桥梁结构振动控制技术领域，提出一种平转开启桥的多维减震阻尼器，包括圆盘形轴瓦、泡沫铝减震层、阻尼器外壳、抗震销。圆盘形轴瓦安装在主轴上，抗震销将圆盘形轴瓦锁定在阻尼器外壳上，泡沫铝减震层环绕在圆盘形轴瓦的周围。发生地震时，抗震销首先被剪断，主轴与圆盘形轴瓦一起沿水平方向挤压泡沫铝减震层。泡沫铝减震层强耗能减振作用，既可以吸收地震动能，达到减震目的；又可以使主轴与桥墩之间由原来的刚性约束转变为柔性约束，减小惯性力对主轴和桥墩的影响。呈圆盘形的泡沫铝具有很强的耗能减震特性和较小的弹性模量，对于来自各个方向的地震，都具有较好的减震性能，并且使主轴相对于桥墩的位移量控制在相对安全的范围内。
Multi-dimensional shock-absorbing damper of flat-turning movable bridge
The invention belongs to the technical field of bridge structure vibration control, and provides a multi-dimensional shock-absorbing damper of a flat-turning movable bridge, which comprises a disc-shaped bearing bush, a foamed aluminum shock-absorbing layer, a damper shell and an anti-seismic pin. The disc-shaped bearing bush is installed on the main shaft, the anti-seismic pin locks the disc-shaped bearing bush on the damper shell, and the foamed aluminum damping layer surrounds the periphery of the disc-shaped bearing bush. When an earthquake occurs, the anti-seismic pin is firstly cut off, and the main shaft and the disc-shaped bearing bush extrude the foamed aluminum damping layer together in the horizontal direction. The foamed aluminum damping layer has strong energy dissipation and damping effects, so that seismic kinetic energy can be absorbed, and the purpose of damping is achieved; and the original rigid constraint between the main shaft and the bridge pier can be converted into flexible constraint, so that the influence of inertia force on the main shaft and the bridge pier is reduced. The disc-shaped foamed aluminum has strong energy dissipation and shock absorption characteristics and small elastic modulus, has good shock absorption performance for earthquakes from all directions, and enables the displacement of the main shaft relative to the bridge pier to be controlled within a relatively safe range.
本发明属于桥梁结构振动控制技术领域，提出一种平转开启桥的多维减震阻尼器，包括圆盘形轴瓦、泡沫铝减震层、阻尼器外壳、抗震销。圆盘形轴瓦安装在主轴上，抗震销将圆盘形轴瓦锁定在阻尼器外壳上，泡沫铝减震层环绕在圆盘形轴瓦的周围。发生地震时，抗震销首先被剪断，主轴与圆盘形轴瓦一起沿水平方向挤压泡沫铝减震层。泡沫铝减震层强耗能减振作用，既可以吸收地震动能，达到减震目的；又可以使主轴与桥墩之间由原来的刚性约束转变为柔性约束，减小惯性力对主轴和桥墩的影响。呈圆盘形的泡沫铝具有很强的耗能减震特性和较小的弹性模量，对于来自各个方向的地震，都具有较好的减震性能，并且使主轴相对于桥墩的位移量控制在相对安全的范围内。
Multi-dimensional shock-absorbing damper of flat-turning movable bridge
一种平转开启桥的多维减震阻尼器
TAN YONGGANG (author) / SHI LEI (author) / KANG SONGTAO (author) / ZHANG GUANGTAO (author) / ZHAO PENGXIAN (author) / HONG LINGYUN (author) / WANG ZHAO (author) / YANG RUNLAI (author) / PENG ZHICHUAN (author) / WU XIAOYU (author)
2023-08-29
Patent
Electronic Resource
Chinese
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