A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge anti-seismic method and structure with multi-stage ordered reset energy dissipation function
The invention relates to the technical field of bridges, in particular to a bridge anti-seismic method and a bridge anti-seismic structure with a multi-stage ordered reset energy dissipation function, which can enable a bridge to activate each stage of anti-seismic mechanism one by one according to an expected design sequence under an extremely rare earthquake; it can be ensured that the bridge can adapt to earthquakes of different sizes in different performance states, the flexible seismic isolation and self-resetting functions are achieved under the small earthquakes, and the bridge can directly pass through without being repaired after the earthquakes; the functions of sliding shock insulation and energy dissipation are achieved under a medium earthquake, main components are not damaged after the earthquake, and passing can be recovered only by resetting the T-beam and rapidly replacing the soft steel energy dissipation element; under a large earthquake, the device has an automatic anti-beam-falling function, and meanwhile, the force transmission path of a bridge structure is changed; under extremely rare occurrence earthquakes, the bridge is converted into a ductile mode from a shock insulation mode, the earthquakes are resisted through hysteretic energy consumption of pier column plastic hinges, the anti-seismic potential of the bridge structure is excavated to the maximum extent, and life safety is guaranteed.
本本发明涉及桥梁技术领域，具体而言，涉及一种具有多级有序复位耗能的桥梁抗震方法及结构，本发明既可以让桥梁在一次极罕遇地震下按照预期的设计顺序逐一激活各级抗震机制，也可以确保桥梁以不同的性能状态适应不同大小的地震，在较小的地震下具有柔性隔震和自复位功能，震后无需修复直接可以通行；在中等地震下具有滑移隔震和耗散能量的功能，震后主要构件不受损伤，只需T梁复位和快速更换软钢耗能元件即可恢复通行；在大震下具有自动防落梁功能，同时改变桥梁结构的传力途径；在极罕遇地震下通过将桥梁由隔震模式转为延性模式，通过墩柱塑性铰的滞回耗能抵御地震，最大程度上挖掘桥梁结构的抗震潜力，保障生命安全。
Bridge anti-seismic method and structure with multi-stage ordered reset energy dissipation function
The invention relates to the technical field of bridges, in particular to a bridge anti-seismic method and a bridge anti-seismic structure with a multi-stage ordered reset energy dissipation function, which can enable a bridge to activate each stage of anti-seismic mechanism one by one according to an expected design sequence under an extremely rare earthquake; it can be ensured that the bridge can adapt to earthquakes of different sizes in different performance states, the flexible seismic isolation and self-resetting functions are achieved under the small earthquakes, and the bridge can directly pass through without being repaired after the earthquakes; the functions of sliding shock insulation and energy dissipation are achieved under a medium earthquake, main components are not damaged after the earthquake, and passing can be recovered only by resetting the T-beam and rapidly replacing the soft steel energy dissipation element; under a large earthquake, the device has an automatic anti-beam-falling function, and meanwhile, the force transmission path of a bridge structure is changed; under extremely rare occurrence earthquakes, the bridge is converted into a ductile mode from a shock insulation mode, the earthquakes are resisted through hysteretic energy consumption of pier column plastic hinges, the anti-seismic potential of the bridge structure is excavated to the maximum extent, and life safety is guaranteed.
本本发明涉及桥梁技术领域，具体而言，涉及一种具有多级有序复位耗能的桥梁抗震方法及结构，本发明既可以让桥梁在一次极罕遇地震下按照预期的设计顺序逐一激活各级抗震机制，也可以确保桥梁以不同的性能状态适应不同大小的地震，在较小的地震下具有柔性隔震和自复位功能，震后无需修复直接可以通行；在中等地震下具有滑移隔震和耗散能量的功能，震后主要构件不受损伤，只需T梁复位和快速更换软钢耗能元件即可恢复通行；在大震下具有自动防落梁功能，同时改变桥梁结构的传力途径；在极罕遇地震下通过将桥梁由隔震模式转为延性模式，通过墩柱塑性铰的滞回耗能抵御地震，最大程度上挖掘桥梁结构的抗震潜力，保障生命安全。
Bridge anti-seismic method and structure with multi-stage ordered reset energy dissipation function
一种具有多级有序复位耗能的桥梁抗震方法及结构
XU LUEQIN (author) / YUE KEFENG (author) / GAN CHAO (author) / DENG HAIRONG (author) / XU LIHAN (author)
2023-01-20
Patent
Electronic Resource
Chinese
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