设置黏滞阻尼器的装配整体式框架结构抗震性能试验研究

引用文献:

耿耀明 刘文燕. 设置黏滞阻尼器的装配整体式框架结构抗震性能试验研究[J]. 建筑结构,2022,48(01):102-108,101.

GENG Yaoming LIU Wenyan. Experimental investigation on seismic performance of precast concrete frame structure with viscous dampers[J]. Building Structure,2022,48(01):102-108,101.

作者:耿耀明 刘文燕
单位:同济大学建筑设计研究院集团)有限公司 上海大学土木工程系
摘要:为研究黏滞阻尼器对装配整体式框架结构抗震性能的影响,分别设计制作了1榀带黏滞阻尼器的装配整体式钢筋混凝土框架模型和普通装配整体式钢筋混凝土框架模型。对两模型进行了水平正弦激励荷载作用下的抗震性能试验,研究了两模型的滞回特性、耗能能力等。试验结果表明:设置黏滞阻尼器框架的滞回曲线较普通框架饱满,结构的耗能能力及附加阻尼比显著提高,结构的抗剪刚度增加,地震响应显著减小;设置黏滞阻尼器框架结构的滞回特性与加载位移相关,加载频率变化对两模型的滞回特性影响较小。
关键词:装配整体式框架结构;黏滞阻尼器;抗震性能;拟静力试验;耗能能力;附加阻尼比
作者简介:耿耀明,博士,正高级工程师,一级注册结构工程师,主要从事结构设计,装配式混凝土结构减隔震等方面的研究,Email:32gym@tjad.cn。刘文燕,博士,讲师,主要从事结构工程、防灾减灾方面的研究,Email:gymdg@163.com。
基金:上海市科委科研计划项目(18DZ1205700)。
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Experimental investigation on seismic performance of precast concrete frame structure with viscous dampers
GENG Yaoming LIU Wenyan
(Tongji Architectural Design(Group) Co.,Ltd. Department of Civil Engineering,Shanghai University)
Abstract: In order to study the effect of viscous dampers on the seismic performance of precast concrete frame structures, a precast concrete frame model with viscous dampers and a general precast concrete frame model were designed and produced respectively. The seismic performance test under the horizontal sinusoidal excitation load was carried out on the two models, and the hysteresis characteristics and energy dissipation capacity of the two models were studied. The results show that the hysteresis curve of the frame with viscous dampers is fuller than that of the general frame, the energy dissipation capacity and additional damping ratio of the structure are significantly improved, the shear stiffness of the structure is increased, and the seismic response is significantly reduced. The hysteretic characteristics of the frame structure with viscous dampers are related to the loading displacement, and the change of the loading frequency has little effect on the hysteretic characteristics of the two models.
Keywords: precast concrete frame structure; viscous damper; seismic performance; pseudo-static test; energy dissipation capacity; additional ratio
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