[1]徐莹璐,卢林枫,刘子龙.扩翼式弱轴连接边框节点抗震性能研究[J].西安建筑科技大学学报：自然版,2016,48(02):220-226.[doi:10.15986/j.1006-7930.2016.02. 012]
　XU Yinglu,LU Linfeng,LIU Zilong.Study on seismic behavior of widened beam flange weak-axis connections in frame side joint[J].J.Xi’an Univ. of Arch. & Tech.：Natural Science Edition,2016,48(02):220-226.[doi:10.15986/j.1006-7930.2016.02. 012]
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扩翼式弱轴连接边框节点抗震性能研究
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西安建筑科技大学学报：自然版[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年02期
页码:
220-226
栏目:
出版日期:
2016-04-28

文章信息/Info

Title:
Study on seismic behavior of widened beam flange weak-axis connections in frame side joint
文章编号:
1006-7930(2016)02-0220-07
作者:
徐莹璐1; 卢林枫1; 刘子龙2
1. 长安大学建筑工程学院，陕西 西安 710061；2. 新时代(西安)设计研究院有限公司，陕西 西安 710018
Author(s):
XU Yinglu1;  LU Linfeng1;  LIU Zilong2
1.School of Civil Engineering, Chang′an University, Xi′an 710061, China;2. New Era(Xi′an)Design Engineering Co.,Ltd, Xi′an 710018, China
关键词:
弱轴连接; 扩翼; 试验研究; 变参数分析
Keywords:
weak-axis connection;  widened beam flange;  experimental research;  variable parameter analysis
分类号:
TU391
DOI:
10.15986/j.1006-7930.2016.02. 012
文献标志码:
A
摘要:
提出了一种新型的节点域箱形加强式工字形柱弱轴连接，基于此节点形式设计梁端翼缘扩大型边框架节点足尺试件进行单调荷载试验研究．采用通用有限元软件ABAQUS对此类节点在单调荷载作用下的受力性能进行模拟对比验证后，对此类节点进行低周反复荷载作用下的一系列有限元变参数模拟分析，研究各种因素对该类节点力学性能的影响．研究结果表明：扩翼式新型弱轴连接节点在低周反复荷载作用下，塑性转动能力能达到0.03 rad以上，塑性铰出现在扩大翼缘的末端，柱子节点域基本处于弹性状态，能较好地满足“强柱弱梁”和“强节点域”的抗震设计理念；我国抗震设计规范中“梁端扩大部分的直角边长比可取为1:2 至1:3”这项规定对扩翼式新型弱轴连接同样适用；给出了蒙皮板尺寸的建议取值．
Abstract:
This paper puts forward a new box strengthen-joint region connection for weak axis of I-section column. A full-scale test of frame side joint with widened beam flange connections under monotonic loading was carried out based on the proposed joint. A general finite element software ABAQUS was used to simulate the mechanical behavior of the joints under monotonic loading, and the simulation results were in good agreement with the experimental results. In order to study the effect of various factors on the performance of this kind of joint, a series of parameters analysis under cyclic loading were employed through finite element method.What the analysis results show are as follows: firstly, the maximum plastic rotations are bigger than 0.03 rad; secondly, the plastic hinge appears in the end of the widened beam flange, with joint region and I-section column still being in elastic state, which accords with the seismic design principles of ‘strong column and weak beam’, and ‘strong joint region’; thirdly, ‘Right-angle side length ratio is desirable for 1:2~1:3’ in Code for seismic design of buildings is also suitable for this widened beam flange weak-axis connections; and finally, the recommended values of the dimensions of the skin plate are given.

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相似文献/References:

[1]卢林枫,王璐璐,徐莹璐,等.钢框架弱轴梁端翼缘侧板加强式节点滞回性能有限元分析[J].西安建筑科技大学学报：自然版,2017,49(05):646.[doi:10.15986/j.1006-7930.2017.05.005]
　LU Linfeng,WANG Lulu,XU Yinglu,et al.Finite element analysis on hysteretic behavior of joint with side plate reinforced beam flange weakaxis connections of steel frames[J].J.Xi’an Univ. of Arch. & Tech.：Natural Science Edition,2017,49(02):646.[doi:10.15986/j.1006-7930.2017.05.005]

备注/Memo

备注/Memo:
收稿日期：2015-08-31 修改稿日期：2016-04-08
基金项目：国家自然科学基金项目(51278061).
作者简介：徐莹璐(1992-)，女，博士生，主要研究钢结构基本理论和抗震性能.E-mail：2015028003@chd.edu.cn
更新日期/Last Update: 2016-05-22