[1]徐莹璐,卢林枫,张宝存.工字形柱弱轴盖板连接边框节点滞回性能影响因素分析[J].东南大学学报(自然科学版),2016,46(3):537-544.[doi:10.3969/j.issn.1001-0505.2016.03.014]
 Xu Yinglu,Lu Linfeng,Zhang Baocun.Influence factor analysis on hysteretic behavior of weak-axis cover-plate connections of I-section column in frame side joint[J].Journal of Southeast University (Natural Science Edition),2016,46(3):537-544.[doi:10.3969/j.issn.1001-0505.2016.03.014]
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工字形柱弱轴盖板连接边框节点滞回性能影响因素分析()
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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3期
页码:
537-544
栏目:
土木工程
出版日期:
2016-05-20

文章信息/Info

Title:
Influence factor analysis on hysteretic behavior of weak-axis cover-plate connections of I-section column in frame side joint
作者:
徐莹璐1卢林枫1张宝存2
1长安大学建筑工程学院, 西安 710061; 2昆明基准方中建筑设计有限公司, 昆明 650224
Author(s):
Xu Yinglu1 Lu Linfeng1 Zhang Baocun2
1School of Civil Engineering, Chang’ an University, Xi’an 710061, China
2Kunming Jizhunfangzhong Architectural Design Co., Ltd., Kunming 650224, China
关键词:
弱轴连接 盖板 边框节点 滞回性能 有限元 变参数分析
Keywords:
weak-axis connection cover plate frame side joint hysteretic behavior finite element variable parameter analysis
分类号:
TU391
DOI:
10.3969/j.issn.1001-0505.2016.03.014
摘要:
为了使盖板可以应用于工字形柱弱轴连接,提出了一种新型的节点域箱形加强式工字形柱弱轴连接形式.首先,对盖板节点在循环荷载作用下的受力性能进行有限元模拟和试验对比验证;然后,对新型弱轴盖板连接边框节点进行低周反复荷载作用下的一系列有限元变参数分析,研究各种因素的变化对该类节点滞回性能的影响.研究结果表明:新型弱轴盖板连接节点在低周反复荷载作用下,塑性转动能力可达0.03 rad,塑性铰出现在盖板末端的梁截面上,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.建议新型弱轴连接节点选用矩形盖板,盖板最大长度取0.5倍梁截面高度,盖板厚度取0.5倍梁翼缘厚度,且设计中宜控制钢柱的轴压比不超过0.6.
Abstract:
In order to apply the cover-plate to the weak-axis connections of I-section column, a new box-strengthened joint region connection for the weak axis of I-section column is put forward. After simulating and verifying the mechanical behavior of cover-plate joint under cyclic loading, variable parameter analysis under low cyclic loading is employed by the finite element method to study the effects of various factors on the hysteretic behavior of the joint. Results show that the maximum plastic rotation is greater than 0.03 rad; the plastic hinge appears in the beam section of the end of the cover plate, with joint region still being in elastic state, which accords with the seismic design principles of “strong column and weak beam” and “strong joint region”. For the new weak-axis connections, the following recommendations are proposed: the rectangular cover-plate can be chosen; the maximum length of cover plate should be limited within 0.5 times beam section height, and the thickness of cover plate can be taken as 0.5 times the thickness of beam flange; and the axial compression ratio should be controlled to be less than 0.6.

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备注/Memo

备注/Memo:
收稿日期: 2015-08-23.
作者简介: 徐莹璐(1992—),女,博士生;卢林枫(联系人),男,博士,副教授,54llf@163.com.
基金项目: 国家自然科学基金资助项目(51278061).
引用本文: 徐莹璐,卢林枫,张宝存.工字形柱弱轴盖板连接边框节点滞回性能影响因素分析[J].东南大学学报(自然科学版),2016,46(3):537-544. DOI:10.3969/j.issn.1001-0505.2016.03.014.
更新日期/Last Update: 2016-05-20