[1]徐莹璐,卢林枫,马蓬渤.弱轴连接组合节点的滞回性能分析[J].东南大学学报(自然科学版),2019,49(1):16-24.[doi:10.3969/j.issn.1001-0505.2019.01.003]
 Xu Yinglu,Lu Linfeng,Ma Pengbo.Hysteretic performance analysis on weak-axis composite connections[J].Journal of Southeast University (Natural Science Edition),2019,49(1):16-24.[doi:10.3969/j.issn.1001-0505.2019.01.003]
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弱轴连接组合节点的滞回性能分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
49
期数:
2019年第1期
页码:
16-24
栏目:
土木工程
出版日期:
2019-01-20

文章信息/Info

Title:
Hysteretic performance analysis on weak-axis composite connections
作者:
徐莹璐1卢林枫2马蓬渤3
1西安建筑科技大学土木工程学院, 西安 710054; 2长安大学建筑工程学院, 西安 710061; 3西安中建投资开发有限公司, 西安 710000
Author(s):
Xu Yinglu1 Lu Linfeng2 Ma Pengbo3
1School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710054, China
2School of Civil Engineering, Chang’ an University, Xi’an 710061, China
3Xi’an China Construction Investment Development Co., Ltd., Xi’an 710000, China
关键词:
弱轴连接 单轴对称钢梁截面 组合节点 滞回性能 有限元
Keywords:
weak-axis connection unilateral symmetry beam section composite connections hysteretic performance finite element
分类号:
TU391
DOI:
10.3969/j.issn.1001-0505.2019.01.003
摘要:
为了减小组合效应的不利影响,提出了采用单轴对称钢梁截面的新型弱轴连接组合节点,该单轴对称钢梁截面形式为上窄下宽且仅梁下翼缘削弱.运用有限元软件ABAQUS对新型弱轴连接组合节点展开循环荷载作用下的参数分析,以获得各参数对其滞回性能的影响.结果表明:层间位移角为±0.04 rad时,各模型的抗弯承载力均满足AISC 341-10规范对特殊抗弯框架的要求;在普通组合节点中,尽管对梁上下翼缘进行了削弱处理,梁下翼缘焊缝仍然有极大的脆断风险;采用单轴对称钢梁截面可以减小组合效应的不利影响;建议单轴对称钢梁截面中梁下翼缘削弱区域起始位置距蒙皮板的距离为0.75~0.90倍梁下翼缘宽度,削弱区段长度为0.65~0.90 倍梁截面高度,削弱深度不大于0.20倍梁下翼缘宽度.
Abstract:
To reduce the adverse effects of composite action, the novel weak-axis composite connections of unilateral symmetry beam sections are proposed. The unilateral symmetry beam sections have narrow beam top flanges and wide beam bottom flanges, and the beam bottom flanges are weakened. The finite element software ABAQUS is used for the parametric analysis of the novel weak-axis composite connections under cyclic loading to study the influence of the parameters on the hysteretic performance. The results show that when the story drift is ±0.04 rad, the bending capacities of all models can meet the requirements of AISC(American Institute of Steel Construction)341-10 for the special moment frames. As for normal composite connections, although the beam top and bottom flanges are weakened, the beam bottom flange welds have a great risk of brittle fracture. The unilateral symmetry beam section can reduce the adverse effect of composite action. For the unilateral symmetry beam section, it is recommended that the distance between the starting position of the weaken region and the skin plate should be set as 0.75 to 0.90 times of the beam bottom flange width; the length of the weaken region should be set as 0.65 to 0.90 times of the beam section height; and the depth of the weaken region should be set as less than 0.20 times the beam bottom flange width.

参考文献/References:

[1] Leon R T,Hajjar J F, Gustafson M A. Seismic response of composite moment-resisting Connections. Ⅰ: Performance[J]. Journal of Structural Engineering, 1998, 124(8): 868-876. DOI:10.1061/(asce)0733-9445(1998)124:8(868).
[2] Chen S J, Chao Y C. Effect of composite action on seismic performance of steel moment connections with reduced beam sections[J]. Journal of Constructional Steel Research, 2001, 57(4): 417-434. DOI:10.1016/s0143-974x(00)00022-5.
[3] Pecce M, Rossi F. The experimental behavior and simple modeling of joints in composite MRFs[J]. Engineering Structures, 2015, 105: 249-263. DOI:10.1016/j.engstruct.2015.09.042.
[4] Lee C H, Jung J H, Kim S Y, et al. Investigation of composite slab effect on seismic performance of steel moment connections[J]. Journal of Constructional Steel Research, 2016, 117: 91-100. DOI:10.1016/j.jcsr.2015.10.004.
[5] Lu L F, Xu Y L, Zheng H. Investigation of composite action on seismic performance of weak-axis column bending connections[J]. Journal of Constructional Steel Research, 2017, 129: 286-300. DOI:10.1016/j.jcsr.2016.11.019
[6] 聂建国, 王宇航. ABAQUS中混凝土本构模型用于模拟结构静力行为的比较研究[J]. 工程力学, 2013, 30(4): 59-67,82. DOI:10.6052/j.issn.1000-4750.2011.07.0420.
Nie J G, Wang Y H. Comparison study of constitutive model of concrete in ABAQUS for static analysis of structures[J]. Engineering Mechanics, 2013, 30(4): 59-67,82. DOI:10.6052/j.issn.1000-4750.2011.07.0420. (in Chinese)
[7] 中华人民共和国住房和城乡建设部. GB 50010—2010 混凝土结构设计规范[S]. 北京: 中国建筑工业出版社, 2010.
[8] ANSI. AISC 341-10 Seismic provisions for structural steel buildings [S]. Chicago: AISC, 2010.
[9] Salvatore W,Bursi O S, Lucchesi D. Design, testing and analysis of high ductile partial-strength steel-concrete composite beam-to-column joints[J]. Computers & Structures, 2005, 83(28/29/30): 2334-2352. DOI:10.1016/j.compstruc.2005.03.028
[10] El-Tawil S, Mikesell T, Vidarsson E, et al. Strength and ductility of FR welded-bolted connection [R]. California: SAC Joint Venture, 1998.

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备注/Memo

备注/Memo:
收稿日期: 2018-07-12.
作者简介: 徐莹璐(1992—),女,博士,讲师;卢林枫(联系人),男,博士,教授,lulinfeng@chd.edu.cn.
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,马蓬渤.弱轴连接组合节点的滞回性能分析[J].东南大学学报(自然科学版),2019,49(1):16-24. DOI:10.3969/j.issn.1001-0505.2019.01.003.
更新日期/Last Update: 2019-01-20