SRC框架-RC核心筒混合结构抗震性能研究

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摘要为了进一步研究地震作用下钢梁-型钢混凝土（SRC）柱框架-钢筋混凝土（RC）核心筒混合结构的抗震性能，按8度（0.2g）设防、Ⅱ类场地设计了1个10层钢梁-SRC柱框架-RC核心筒混合结构原型，根据相似原理制作了缩尺比为1:5混合结构试验模型并进行了低周反复加载试验，基于试验结果，揭示了混合结构在地震作用下的复杂受力行为和破坏过程，并对混合结构的破坏特征、承载力、变形能力、滞回特性及耗能能力、强度衰减和刚度退化等进行了系统分析。最后，利用Opensees分析平台对该混合结构在水平荷载作用下的受力性能进行了非线性数值模拟，并对SRC框架-RC核心筒的剪力分配进行了计算分析。结果表明，SRC框架-RC核心筒混合结构具有良好的抗震性能，研究成果可为该类结构的抗震设计提供技术支撑。

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	王斌1
	吕斌1
	曾磊2

关键词 ：型钢混凝土框架, 钢筋混凝土核心筒, 试验研究, 抗震性能, 数值分析

Abstract：To study aseismic performance of hybrid structures composed of steel beam-reinforcement concrete (SRC) frame-reinforcement concrete (RC) core tube, a 10-story SRC frame-RC core tube hybrid structure was designed according to the 8 (0.2g) earthquake fortification and the II kind sites.A model with scale of 1:5 for a SRC frame-RC core tube hybrid structure was constructed and the low cycle repeated loading tests were performed for this model to reveal its complex force-bearing behavior and failure process under earthquake.Based on test results, the hybrid structure’s failure characteristics, load-bearing capacity, deformation ability, hysteresis characteristics, energy-dissipating capacity, strength decay and stiffness degradation were analyzed.Finally, the analysis platform Opensees was used to nonlinearly simulate the hybrid structure’s aseismic performance under action of horizontal loading, and then its shear force distribution was calculated and analyzed.The results showed that the SRC frame-RC core tube hybrid structure has good aseismic performance; the study results can provide a technical support for aseismic design of this kind hybrid structures.

Key words： SRC frame RC core tube experimental study seismic behavior? numerical analysis

收稿日期: 2018-09-11 出版日期: 2019-10-28

引用本文:

王斌1，吕斌1，曾磊2. SRC框架-RC核心筒混合结构抗震性能研究[J]. 振动与冲击, 2019, 38(21): 15-23.
WANG Bin1, LV Bin1, ZENG Lei2. Aseismic performance of SRC frame-RC core tube hybrid structures. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(21): 15-23.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I21/15

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