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Buffering energy dissipation structure, beam falling prevention device and method thereof
The invention discloses a buffering energy dissipation structure, an anti-beam-falling device and a method thereof, and belongs to the technical field of bridge engineering. The damping device is composed of a pressing block, a first damping element... an Nth damping element, a limiting cushion block and a supporting plate. Under the action of pressure generated when the pressing block is tensioned by the inhaul cable, buffering and energy reduction are achieved through elastic deformation of the multiple stacked damping elements; after being deformed, the damping elements are easily attached to each other and generate sliding friction to consume energy; when the deformation exceeds a certain displacement, the damping element generates plastic deformation, and the impact energy is further absorbed. The anti-falling beam device adopting the structure not only realizes dual energy consumption through elastic-plastic deformation and sliding friction of the damping piece, is high in energy consumption capacity, but also has relatively high bearing and resetting capacities; the buffer displacement, the buffer rigidity, the maximum output and other multi-stage fortification parameters of the anti-falling beam device are easy to design, and the stress is clear; the device is simple and reliable in structure, good in economical efficiency and capable of effectively preventing beam body falling and beam falling phenomena under the action of an earthquake.
本发明公开了一种缓冲耗能结构、防落梁装置及其方法，属于桥梁工程技术领域。由压块、第一阻尼元件、…第N阻尼元件、限位垫块、支撑板组成。压块在被拉索拉紧所产生的压力作用下，通过多个叠合的阻尼元件弹性变形来实现缓冲减能；阻尼元件发生变形后，易于相互贴合并发生滑动摩擦消耗能量；变形超出一定位移量时，阻尼元件发生塑性变形，进一步吸收冲击能量。采用此结构的防落梁装置通过阻尼件弹塑性变形及滑动摩擦不仅实现双重耗能，耗能能力强，而且具有较强的承载和复位能力；防落梁装置的缓冲位移、缓冲刚度、最大出力等多阶段设防参数易于设计，受力明确；该装置结构简单可靠，经济性好，能够有效防止地震作用下梁体跌落及落梁现象的发生。
Buffering energy dissipation structure, beam falling prevention device and method thereof
The invention discloses a buffering energy dissipation structure, an anti-beam-falling device and a method thereof, and belongs to the technical field of bridge engineering. The damping device is composed of a pressing block, a first damping element... an Nth damping element, a limiting cushion block and a supporting plate. Under the action of pressure generated when the pressing block is tensioned by the inhaul cable, buffering and energy reduction are achieved through elastic deformation of the multiple stacked damping elements; after being deformed, the damping elements are easily attached to each other and generate sliding friction to consume energy; when the deformation exceeds a certain displacement, the damping element generates plastic deformation, and the impact energy is further absorbed. The anti-falling beam device adopting the structure not only realizes dual energy consumption through elastic-plastic deformation and sliding friction of the damping piece, is high in energy consumption capacity, but also has relatively high bearing and resetting capacities; the buffer displacement, the buffer rigidity, the maximum output and other multi-stage fortification parameters of the anti-falling beam device are easy to design, and the stress is clear; the device is simple and reliable in structure, good in economical efficiency and capable of effectively preventing beam body falling and beam falling phenomena under the action of an earthquake.
本发明公开了一种缓冲耗能结构、防落梁装置及其方法，属于桥梁工程技术领域。由压块、第一阻尼元件、…第N阻尼元件、限位垫块、支撑板组成。压块在被拉索拉紧所产生的压力作用下，通过多个叠合的阻尼元件弹性变形来实现缓冲减能；阻尼元件发生变形后，易于相互贴合并发生滑动摩擦消耗能量；变形超出一定位移量时，阻尼元件发生塑性变形，进一步吸收冲击能量。采用此结构的防落梁装置通过阻尼件弹塑性变形及滑动摩擦不仅实现双重耗能，耗能能力强，而且具有较强的承载和复位能力；防落梁装置的缓冲位移、缓冲刚度、最大出力等多阶段设防参数易于设计，受力明确；该装置结构简单可靠，经济性好，能够有效防止地震作用下梁体跌落及落梁现象的发生。
Buffering energy dissipation structure, beam falling prevention device and method thereof
一种缓冲耗能结构、防落梁装置及其方法
LI ZHENXIN (author) / PEI MINSHAN (author) / LIU XIAODONG (author) / PANG JU (author) / LI YAN (author) / YAN GUIHAO (author) / LYU MINGDA (author)
2023-09-01
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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