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
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
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[5] 建筑抗震设计规范:GB 50011—2010[S].北京:中国建筑工业出版社,2010.
[6] 建筑抗震试验方法规程:JGJ/T 101—2015 [S].北京:中国建筑工业出版社,2015.
[7] 江超,徐丽.带可更换连梁阻尼器的装配式剪力墙结构抗震性能研究[J].施工技术,2020,49(5):98-103.
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[9] 吕西林,范力,赵斌.装配式预制混凝土框架结构缩尺模型拟动力试验研究[J].建筑结构学报,2008,29(4):58-65.
[10] 孙岩波,李晨光,杨旭.装配式混凝土框架结构梁-板-柱节点抗震性能试验研究[J].建筑结构,2018,48(7):23-26.
[11] 建筑消能减震技术规程:JGJ 297—2013[S].北京:中国建筑工业出版社,2013.
[12] ANINTHANENI P K,DHAKAL R P,MARSHALL J,et al.Nonlinear cyclic behaviour of precast concrete frame sub-assemblies with “dry”end plate connection[J].Structures,2018(14):126-136.
[13] PRIESTLEY M N,SRITHARAN S,CONLEY J R,et al.Preliminary results and conclusions from the PRESSS five-story precast concrete test building[J].PCI Journal,1999,44(6):42-67.
Experimental investigation on seismic performance of precast concrete frame structure with viscous dampers
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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