[1]范圣刚,丁智霞,舒赣平,等.新型两阶段耗能开孔式低屈服点钢耗能装置试验研究[J].东南大学学报(自然科学版),2016,46(1):110-117.[doi:10.3969/j.issn.1001-0505.2016.01.019]
 Fan Shenggang,Ding Zhixia,Shu Ganping,et al.Experimental study on new open-pore two-stage energy dissipation device with low yield point steel[J].Journal of Southeast University (Natural Science Edition),2016,46(1):110-117.[doi:10.3969/j.issn.1001-0505.2016.01.019]
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新型两阶段耗能开孔式低屈服点钢耗能装置试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第1期
页码:
110-117
栏目:
土木工程
出版日期:
2016-01-20

文章信息/Info

Title:
Experimental study on new open-pore two-stage energy dissipation device with low yield point steel
作者:
范圣刚12丁智霞2舒赣平12尚春方2刘美景3
1东南大学混凝土及预应力混凝土教育部重点实验室, 南京 210096; 2东南大学土木工程学院, 南京 210096; 3东南大学成贤学院土木工程系, 南京 210088
Author(s):
Fan Shenggang12 Ding Zhixia2 Shu Ganping12 Shang Chunfang2 Liu Meijing3
1Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
2School of Civil Engineering, Southeast University, Nanjing 210096, China
3Department of Civil Engineering, Southeast University Chengxian College, Nanjing 210088, China
关键词:
耗能装置 低屈服点钢 两阶段耗能 开孔式 滞回性能
Keywords:
energy dissipation device low yield point steel two-stage energy dissipation open-pore hysteretic behavior
分类号:
TU375.4
DOI:
10.3969/j.issn.1001-0505.2016.01.019
摘要:
为了实现分阶段耗能的目标,基于Q235钢和低屈服点钢2种不同耗能材料,设计了一种新型开孔式耗能装置.根据不同的耗能材料和抛物线开孔方式,构建了具有不同屈服位移的2种耗能钢板,继而组装成整体耗能装置,实现两阶段耗能目标控制.针对2种耗能钢板进行单调加载试验,考察了不同参数状态下单片耗能钢板的屈服机理,给出了单板模型试件的荷载-位移曲线、屈服位移和屈服荷载.对耗能装置开展低周反复加载试验,揭示其两阶段耗能机理与破坏模式,得到耗能装置的滞回曲线、骨架曲线、等效黏滞阻尼比和等效刚度退化曲线.试验结果表明,新型两阶段耗能装置的滞回曲线饱满,耗能性能优越稳定,分阶段耗能特点明显.
Abstract:
In order to implement two-stage energy dissipation, a new open-pore energy dissipation device was designed based on Q235 steel and low yield point steel. Two kinds of steel consumption sheets with different yield displacements were fabricated by different materials and parabola opening ways, and were assembled into an overall energy dissipation device to achieve the two-stage control target of energy dissipation. The monotonic loading tests were carried out on these two energy dissipation plates to investigate the yield mechanism considering different parameter settings. The load-displacement curves, yield displacements and yield loads of single-plate specimens were obtained. The low reversed cyclic loading tests were conducted on the energy dissipation device, and the two-stage energy dissipation mechanism and the failure mode were revealed. The hysteretic curves, skeleton curves, equivalent viscous damping ratio, and equivalent stiffness degradation curves of the energy dissipation device were obtained. The experimental results show that the new two-stage energy dissipation device has full hysteretic curves, stable energy dissipation performance, obvious energy dissipation in stages.

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备注/Memo

备注/Memo:
收稿日期: 2015-07-14.
作者简介: 范圣刚(1974—),男,博士,教授,博士生导师,101010393@seu.edu.cn.
基金项目: “十二五”国家科技支撑计划资助项目(2012BAJ13B014).
引用本文: 范圣刚,丁智霞,舒赣平,等.新型两阶段耗能开孔式低屈服点钢耗能装置试验研究[J].东南大学学报(自然科学版),2016,46(1):110-117. DOI:10.3969/j.issn.1001-0505.2016.01.019.
更新日期/Last Update: 2016-01-20