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聚合阻尼耗能减震结构理论模型及振动台试验

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提出一种高层减震结构体系,将核心筒与外框架采用柔性滑动连接,并集中设置聚合阻尼减震系统,充分利用内部核心筒和外框架的侧向变形差耗散地震能量;建立了聚合阻尼减震结构的简化质点系模型,并得到地震作用下的位移传递公式;完成了模型结构的振动台模型试验,验证了聚合阻尼耗能减震结构的减震效果;最后通过工程算例分析得到了聚合阻尼耗能减震结构内核心筒、外框架的地震响应和减震效果,进一步探讨了地震作用下不同结构体系的塑性损伤状态,理论和试验研究结果表明聚合阻尼耗能减震结构可有效控制结构构件的塑性损伤.
Theoretical model and shaking table test verification of the new energy dissipation structure with damping concentration system
A new type of high-rise shock absorbing structure system is proposed,which adopts flexible sliding connection between the core tube and the outer frame,and centrally sets the aggregated damping shock absorption system to make full use of the lateral deformation difference between the inner core tube and the outer frame to dissipate seismic energy.A simplified particle system model of the new polymeric damping structure is established,and the displacement transfer formula under earthquake action is obtained.The shaking table model test of the model structure was conducted,and the shock absorption effect of the aggregate damping energy dissipation structure was verified.Finally,the seismic response and shock absorption effect of the inner core tube and the outer frame of the aggregated damping energy-dissipative shock absorption structure are obtained through the analysis of engineering examples,and the plastic damage state of different structural systems under earthquake action is further discussed.Theoretical and experimental research results indicate that aggregate damping energy dissipation structure can effectively control the plastic damage of structural components.

damping concentrationenergy dissipation storyshaking table testseismic response

祝存平、王嘉宇

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国网甘肃省电力公司,甘肃 兰州 730000

聚合阻尼 耗能减震层 振动台试验 地震响应

2024

世界地震工程
中国地震局工程力学研究所 中国力学学会

世界地震工程

CSTPCD北大核心
影响因子:0.523
ISSN:1007-6069
年,卷(期):2024.40(1)
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