[1]杨应华,徐增武,杨 超.带U形阻尼器的钢框架梁柱节点滞回性能分析[J].西安建筑科技大学学报(自然科学版),2016,48(06):796-804.[doi:10.15986/j.1006-7930.2016.06.005]
 YANG Yinghua,XU Zengwu,YANG Chao. Hysteretic behavior analysis of beam-to-column connections with U-shaped damper[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(06):796-804.[doi:10.15986/j.1006-7930.2016.06.005]
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带U形阻尼器的钢框架梁柱节点滞回性能分析()
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西安建筑科技大学学报(自然科学版)[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年06期
页码:
796-804
栏目:
出版日期:
2016-12-31

文章信息/Info

Title:
 Hysteretic behavior analysis of beam-to-column connections with U-shaped damper
文章编号:
1006-7930(2016)06-0796-09
作者:
 杨应华徐增武杨 超
 西安建筑科技大学土木工程学院,陕西 西安710055
Author(s):
YANG Yinghua XU Zengwu YANG Chao
 School of Civil Engineering, Xiʹan Univ. of Arch. & Tech., Xiʹan 710055, China
关键词:
梁柱节点滞回性能阻尼器有限元分析参数分析
Keywords:
 beam-to-column connection hysteretic behavior damper finite element analysis parameter analysis
分类号:
TU391
DOI:
10.15986/j.1006-7930.2016.06.005
文献标志码:
A
摘要:
地震作用下,传统钢框架结构梁柱连接容易发生脆性破坏,并且在震后不易修复.基于以上考虑,提出了一种适用于梁柱强轴方向连接的带U形阻尼器节点.应用ABAQUS有限元软件对该节点的滞回性能进行了分析,研究了节点的受力过程和破坏模式,并就U形阻尼器U形段截面尺寸、平直段尺寸等参数对节点进行了滞回性能分析.研究结果显示:(1) U形阻尼器尺寸对节点的性能有较大的影响;(2) 该节点具有较大的承载力和变形能力,在合适的尺寸下有良好的滞回性能;(3) 在地震荷载作用下,节点的 U形阻尼器首先发生屈服并破坏,而梁柱基本保持完好,震后只需更换U形阻尼器便可达到节点修复的目的.

 

Abstract:
Traditional beam-to-column connections in steel moment frames are prone to brittle failure under earthquake excitations, and are difficult to be repaired after an earthquake. Therefore, this paper proposes a new type of joint with U-shaped dampers for beam-to-column strong axis connections. The hysteretic behavior of the joints, including their failure modes is analyzed through the finite element software ABAQUS. In addition, effects of the thickness, height, radius of U-shaped damper and the thickness of flat parts on the hysteretic behavior of the joints are further analyzed. It is shown that: (1) The dimensional sizes of the U-shaped damper determine the performance of joints significantly; (2) The joints demonstrate sufficient deformation ability, rather large loading capacity, and good hysteretic performance in suitable dimensions ; (3) Under earthquake loading, the U-shaped damper first yields and fails, while the connected beam and column remain intact, so that only the U-shaped damper needs to be replaced for retrofitting.

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备注/Memo

备注/Memo:
收稿日期:2015-12-23 修改稿日期:2016-11-17

作者简介:杨应华(1965-),男,博导,教授,主要从事钢结构方面的研究.E-mail: yang_ying_hua@163.com

更新日期/Last Update: 2017-01-26