[1]陈云,陈超,刘涛,等.分级屈服型金属阻尼器减震性能分析[J].地震工程与工程振动,2018,(04):085-92.[doi:10.13197/j.eeev.2018.04.85.cheny.013]
 CHEN Yun,CHEN Chao,LIU Tao,et al.Analysis of seismic performance of graded yielding metal damper[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2018,(04):085-92.[doi:10.13197/j.eeev.2018.04.85.cheny.013]
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分级屈服型金属阻尼器减震性能分析
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《地震工程与工程振动》[ISSN:/CN:]

卷:
期数:
2018年04期
页码:
085-92
栏目:
论文
出版日期:
2018-10-28

文章信息/Info

Title:
Analysis of seismic performance of graded yielding metal damper
作者:
陈云1 陈超1 刘涛1 蒋欢军2
1. 海南大学 土木建筑工程学院, 海南 海口 570228;
2. 同济大学 土木工程防灾国家重点实验室, 上海 200092
Author(s):
CHEN Yun1 CHEN Chao1 LIU Tao1 JIANG Huanjun2
1. College of Civil Engineering and Architecture, Hainan University, Haikou 570228, China;
2. State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
关键词:
阻尼器抗震性能恢复力模型分级屈服动力时程分析骨架曲线
Keywords:
damperseismic performancerestoring force modelgraded yieldingdynamic time history analysisskeleton curves
分类号:
TU352.1;TU317.1
DOI:
10.13197/j.eeev.2018.04.85.cheny.013
摘要:
本文提出一种由两个不同尺寸的环形金属阻尼器套在一起形成的新型分级屈服型金属阻尼器,阐述了其构造形式和耗能机理,提出其三折线骨架模型并采用三折线随动强化模型模拟分级屈服型金属阻尼器的滞回性能,与试验结果进行了对比分析。利用SAP2000有限元分析程序,分别对纯混凝土框架结构和装有分级屈服型金属阻尼器的混凝土框架结构进行小震、中震和大震下的弹塑性动力时程分析。研究结果表明,分级屈服型金属阻尼器的滞回环饱满,三折线随动强化模型可以较好地模拟阻尼器的滞回特性,其预测结果与试验结果吻合较好。装有分级屈服型金属阻尼器的混凝土框架结构在不同水准的地震作用下均具有较好的抗震性能,结构的地震位移响应明显减小。小震下阻尼器内环开始屈服耗能,外环保持弹性,为结构提供附加阻尼和附加刚度。中震下阻尼器外环开始屈服,和内环一起耗能,实现了内外环分级屈服耗能。大震下阻尼器能有效地控制结构的位移响应,提高结构的整体抗震性能。
Abstract:
In this paper, a new type of graded yielding metal damper composed of two o-shaped metal dampers with different geometry sizes is proposed. Its construction and energy dissipation mechanism are introduced. The trilinear skeleton model is proposed and the hysteretic performance of the graded yielding metal damper is simulated by trilinear kinematic hardening model, the simulated results are compared with experimental results. The SAP2000 procedure is used to analyze the elasto-plastic dynamic time history response of the pure concrete frame structure and the concrete frame structure with the graded yielding metal dampers under small earthquakes, moderate earthquakes and rare earthquakes. The research results show that the hysteresis loops of graded yielding metal dampers are full, and the simulation results of the trilinear kinematic hardening model are in good accord with experimental results. The concrete frame structure with graded yielding metal dampers exhibits excellent seismic performance under different levels of earthquake action and the seismic displacement response of the structure is obviously reduced. Under small earthquakes, the inner ring of the damper starts to yield, the outer ring keeps elastic, and the damper provides additional damping and additional stiffness for the structure. Under moderate earthquake, the outer ring of the damper begins to yield and dissipate seismic energy with the inner ring together, the damper achieve the graded yielding. Under rare earthquake, the damper can effectively control the structural displacement response and improve the seismic performance of the structure.

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备注/Memo

备注/Memo:
收稿日期:2018-03-14;改回日期:2018-05-19。
基金项目:国家自然科学基金项目(51408170);海南省重点研发计划(ZDYF2016151)
作者简介:陈云(1980-),男,副教授,博士,主要从事工程结构抗震与防灾研究.E-mail:chenyunhappy@163.com
通讯作者:陈超(1993-),男,硕士研究生,主要从事结构振动控制研究.E-mail:chenchaosqkcx@163.com
更新日期/Last Update: 1900-01-01