The intelligent seismic retrofitting of structure based on the magnetorheological dampers

机译：基于磁流变阻尼器的结构智能抗震改造

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Based on the state-of-the-art about seismic damage principles and aseismic strengthening technology, analysis and design method of seismic retrofitting for earthquake damaged reinforced concrete frame using magnetorheological (MR) damper is proposed. Three levels of fortification objects are put forward and quantified or intelligent retrofitting of reinforced concrete frame using MR damper. The experiment system of a three-floor reinforced concrete frame-shear wall eccentric structure has been built based on Matlab/Simulink software environment and hardware/software resources of dSPACE. The shaking table experiment of seismic retrofitting of earthquake damaged reinforced concrete frame-shear wall structure using MR damper is implemented using rapid control prototyping (RCP) technology. The validity of passive control strategies and semi-active control strategy is verified under El Centro earthquake excitations with different peak value. The experimental results indicate that MR dampers can significantly enhance aseismic performance level of the seismic damaged reinforced concrete frame, and meet all the earthquake fortification levels. The aseismic ability of MR damper intelligent aseismic structure system of auto-reinforcement is much better than both the damaged structure and the aseismic structure reinforced by the passive damper.

机译：基于最新的地震破坏原理和抗震加固技术，提出了利用磁流变（MR）阻尼器对地震破坏钢筋混凝土框架进行抗震加固的分析和设计方法。提出了三级设防对象，并对MR阻尼器进行了钢筋混凝土框架的量化或智能改造。基于Matlab / Simulink软件环境和dSPACE的硬件/软件资源，建立了三层钢筋混凝土框架-剪力墙偏心结构试验系统。利用快速控制原型（RCP）技术，进行了采用MR阻尼器的地震破坏钢筋混凝土框架-剪力墙结构地震加固振动台试验。在具有不同峰值的El Centro地震激励下验证了被动控制策略和半主动控制策略的有效性。实验结果表明，MR阻尼器可以显着提高地震破坏的钢筋混凝土框架的抗震性能，并满足所有的地震设防水平。 MR减震器智能防震结构系统自动加固的抗震能力远优于被动减震器加固的受损结构和抗震结构。

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来源
《Conference on Active and passive smart structures and integrated systems; 20090309-12; San Diego, CA(US)》|2009年|P.72880V.1-72880V.7|共7页
会议地点 San Diego CA(US)
作者
Li Xiu-ling; Li Hong-nan;
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作者单位

School of Civil Engineering, Shandong Jianzhu University, Jinan, 250101, China School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian, 116024, China;

School of Civil and Hydraulic Engineering, Dalian University of Technology, D;

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原文格式 PDF
正文语种 eng
中图分类系统科学;
关键词
seismic retrofitting; magnetorheological damper; performance level; shaking table experiment;

机译：地震改造；磁流变阻尼器；性能水平；振动台试验;

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4. The intelligent seismic retrofitting of structure based on the magnetorheological dampers [C] . Li Xiu-ling, Li Hong-nan Conference on Active and passive smart structures and integrated systems . 2009

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The intelligent seismic retrofitting of structure based on the magnetorheological dampers

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