| 引用本文: | 毛晨曦,张予斌,李波,王振营,李惠,欧进萍.连梁中安装SMA阻尼器框剪结构非线性分析[J].哈尔滨工业大学学报,2013,45(12):70.DOI:10.11918/j.issn.0367-6234.2013.12.013 |
| MAO Chenxi,ZHANG Yubin,LI Bo,WANG Zhenying,LI Hui,OU Jinping.Nonlinear analysis of reinforced concrete frame-shear wall structure with shape memory alloy dampers in coupling beams[J].Journal of Harbin Institute of Technology,2013,45(12):70.DOI:10.11918/j.issn.0367-6234.2013.12.013 |
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| 连梁中安装SMA阻尼器框剪结构非线性分析 |
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毛晨曦1, 张予斌1, 李波1, 王振营2, 李惠2, 欧进萍2,3
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(1.中国地震局工程力学研究所,150080哈尔滨;2.哈尔滨工业大学 土木工程学院,150090 哈尔滨; 3.大连理工大学 土木水利学院,116024辽宁 大连)
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| 摘要: |
| 为改善钢筋混凝土框架-剪力墙结构中小跨高比连梁的脆性破坏模式,提出在连梁中安装形状记忆合金(shape memory alloy,简称SMA)阻尼器,并采用数值分析对此类结构的抗震性能进行研究．以一幢阻尼器控制的18层平面框剪结构为例,对该结构进行Pushover分析及静力往复荷载作用下的非线性分析,研究了安装SMA阻尼器的连梁的两个设计参数(屈服力比和屈服位移比)取值对整体结构非线性性能的影响．分析结果表明:屈服力比对结构损伤模式影响显著,当屈服位移比相同时,屈服力比越小,阻尼器进入屈服越早,变形集中在阻尼器中,结构自复位能力越强;屈服力比相同时,随着屈服位移比增大,连梁中SMA阻尼器屈服被延后,结构中混凝土构件越早发生损伤． |
| 关键词: 框架-剪力墙结构 连梁 形状记忆合金阻尼器 Pushover分析 静力往复荷载 |
| DOI：10.11918/j.issn.0367-6234.2013.12.013 |
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| 基金项目:国家自然科学基金(91315301);地震行业科研专项资助项目(201308003);中国地震局工程力学研究所基本科研基金(2009-A01). |
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| Nonlinear analysis of reinforced concrete frame-shear wall structure with shape memory alloy dampers in coupling beams |
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MAO Chenxi1, ZHANG Yubin1, LI Bo1, WANG Zhenying2, LI Hui2, OU Jinping2,3
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(1.Institute of Engineering Mechanics, China Earthquake Administration, 150080 Harbin, China; 2.School of Civil Engineering, Harbin Institute of Technology, 150090 Harbin, China; 3.School of Civil and Hydraulic Engineering, Dalian University of Technology, 116024 Dalian, Liaoning,China)
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| Abstract: |
| To improve the brittle fracture mode of coupling beams with small span-depth ratio in RC frame-shear wall structure, a shape memory alloy (SMA) damper is installed into coupling beams in this study. The seismic performance of the structure is studied by numerical analysis. A planner 18-story frame-shear wall structure is utilized. SMA dampers are installed into coupling beams at each story. Static monotonic and cyclic loading are applied on the structure. Influence of two parameters of the coupling beam with SMA damper, the yield force ratio and the yield displacement ratio, on the nonlinear behavior of the whole structure is addressed. The analysis results indicate that the failure mode is remarkably affected by the yield force ratio. For the structures with the same yield displacement ratio, when their yield force ratio decrease, the dampers yield more early and deformation of the coupling beams is more easily to be concentrated in the dampers. At the same time, the structure has good re-centering ability. With the same yield force ratio, the increasing of yield displacement ratio results in the delay of SMA damper yielding and the concrete members damage early. |
| Key words: frame-shear wall structure coupling beam shape memory alloy damper Pushover analysis static cyclic load |
