[1]孙国华,朱禹,胡嘉明,等.新型自复位斜槽剪切板支撑滞回性能的试验研究[J].地震工程与工程振动,2022,42(06):044-54.[doi:10.13197/j.eeed.2022.0605]
 SUN Guohua,ZHU Yu,HU Jiaming,et al.Experimental investigation on the hysteretic behavior of innovative self-centering ductile shear panel with inclined slots[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2022,42(06):044-54.[doi:10.13197/j.eeed.2022.0605]
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新型自复位斜槽剪切板支撑滞回性能的试验研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
42
期数:
2022年06期
页码:
044-54
栏目:
第十一届全国地震工程学术会议专题
出版日期:
2022-12-31

文章信息/Info

Title:
Experimental investigation on the hysteretic behavior of innovative self-centering ductile shear panel with inclined slots
作者:
孙国华 朱禹 胡嘉明 黎明
苏州科技大学 土木工程学院, 江苏 苏州 215011
Author(s):
SUN Guohua ZHU Yu HU Jiaming LI Ming
School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
关键词:
自复位剪切板斜槽滞回性能低周往复加载试验
Keywords:
self-centeringshear panelinclined slothysteretic behaviorlow reversed cyclic test
分类号:
TU391
DOI:
10.13197/j.eeed.2022.0605
摘要:
文中通过将具有显著捏缩滞回特征的斜槽剪切板与镍钛形状记忆合金(shape memory alloy, SMA)合理组合,提出一种新型自复位斜槽剪切板支撑(self-centering ductile shear panel with inclinedslots, SC-BDSP)。为研究新型SC-BDSP支撑的抗震性能,设计制作了3榀1:3缩尺试件,其中,试件SC-SMA仅设置SMA丝材,试件IS-BDSP仅布置交叉斜槽剪切板,试件SC-BDSP组合了SMA丝材及斜槽剪切板,基于低周往复加载试验系统研究了新型SC-BDSP支撑的滞回性能及复位能力。研究表明:斜槽剪切墙板具有显著捏缩的滞回特征,用作耗能系统时可显著降低新型SC-BDSP支撑中镍钛SMA丝材的用量。新型SC-BDSP支撑不仅具有较高的水平承载力、抗侧刚度及变形能力,还具有理想的震后复位功能,但耗能能力一般,等效黏滞阻尼比约为0.12。通过牺牲传统构件的耗能能力,可实现新型SC-BDSP支撑的震后复位功能,减小震后残余变形。
Abstract:
This paper proposed an innovative self-centering ductile shear panel with inclined slots(SC-BDSP) through the reasonable combinations of shear panel with inclined slots and NiTi shape memory alloy(SMA). In order to investigate the seismic behavior of SC-BDSP, a total of three test specimens at one-third scale were designed and fabricated. Specimen SC-SMA was designed and only installed the SMA wires along the diagonal direction, specimen IS-BDSP only included the double-layer shear panels with inclined slots, and specimen SC-BDSP was composed of the slotted shear panels and SMA wires. A series of low reversed cyclic tests were carried out, and the hysteretic behavior and self-centering function of SC-BDSP were investigated. Test results show that the ductile shear panel with inclined slots possesses the considerably pinching hysteretic characteristic, which can dramatically reduce the amount of NiTi SMA wires for realizing the self-centering function. The innovative SC-BDSP component has not only the high lateral strength, lateral stiffness, and deformability, but also the ideal self-centering behavior after earthquakes. However, the SC-BDSP has the moderate energy dissipation capacity, and the equivalent viscous damping ratio is about 0.12. In conclusion, the SC-BDSP can realize the self-centering behavior and decrease the residual deformation through sacrificing the energy dissipation capacity of traditional structural component.

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备注/Memo

备注/Memo:
收稿日期:2022-06-26;改回日期:2022-10-09。
基金项目:国家自然科学基金项目(51578355);江苏省高等学校自然科学研究重大项目(17KJA560003)
作者简介:孙国华(1978-),男,教授,博士,主要从事钢结构及钢-混凝土组合结构抗震研究.E-mail:sungh-529@163.com
更新日期/Last Update: 1900-01-01