[1]徐莹璐,尚永芳,马蓬渤,等.钢框架梁下翼缘削弱型组合节点的滞回性能研究[J].西安建筑科技大学学报(自然科学版),2023,55(02):205-210.[doi:10.15986/j.1006-7930.2023.02.007 ]
　XU Yinglu,SHANG Yongfang,MA Pengbo,et al.Study on hysteretic behavior of composite joints with weakened beam bottom flanges in steel frame[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2023,55(02):205-210.[doi:10.15986/j.1006-7930.2023.02.007 ]
点击复制

钢框架梁下翼缘削弱型组合节点的滞回性能研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
55
期数:
2023年02期
页码:
205-210
栏目:
出版日期:
2023-04-28

文章信息/Info

Title:
Study on hysteretic behavior of composite joints with weakened beam bottom flanges in steel frame
文章编号:
1006-7930(2023)02-0205-06
作者:
徐莹璐1; 2; 尚永芳3; 马蓬渤4; 苏耀烜3
(1.西安建筑科技大学 土木工程学院,陕西 西安 710055; 2.西安建筑科技大学 结构工程与抗震教育部重点实验室,陕西 西安 710055; 3.长安大学 建筑工程学院,陕西 西安 710064; 4.上海中建东孚投资发展有限公司,上海 201206)
Author(s):
XU Yinglu1; 2;  SHANG Yongfang3;  MA Pengbo4; SU Yaoxuan3
(1.School of Civil Engineering, Xi'an Univ. of Arch. & Tech., Xi'an 710055; China; 2.Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education(XAUAT), Xi'an 710055, China; 3.College of Architectural Engineering, Chang'an University, Xi'an 710064, China; 4.Shanghai Zhongjian Dongfu Investment Development Co. Ltd., Shanghai 201206)
关键词:
梁下翼缘削弱;  滞回性能;  组合节点;  单轴对称
Keywords:
beam lower flange weakening;  hysteretic behavior;  composite joint;  uniaxial symmetry
分类号:
TU393; TU317.1
DOI:
10.15986/j.1006-7930.2023.02.007
文献标志码:
A
摘要:
针对带混凝土楼板的钢框架节点延性性能差,在梁下翼缘焊缝处易于发生破坏的不足,本文提出一种采用上窄下宽且仅梁下翼缘削弱的单轴对称钢梁截面的新型组合节点形式,运用有限元软件ABAQUS对其进行滞回性能研究。结果表明:梁翼缘的削弱方式以及钢梁上、下翼缘宽度比对组合节点的滞回性能有明显影响。合理的组合节点形式可有效缓解组合梁截面的中和轴上移,实现梁上塑性铰外移,提高组合节点的延性; 随着梁上、下翼缘宽度比的减小,组合梁截面中和轴逐渐下移,节点的承载能力以及延性有所提高,建议钢梁上、下翼缘宽度比的取值为:(0.6～0.9)。
Abstract:
The steel frame beam column joint with concrete floor slab has poor ductility, and the weld of the lower flange of the beam is prone to brittle failure. In view of the above shortcomings, this paper proposes a novel connection form of uniaxial symmetric composite joint with narrow upper flange and wide lower flange of the beam, which only weakens the lower flange of the beam. The finite element software ABAQUS was used to analyze the hysteretic performance of the proposed connection. Results show that the weakening form of beam flange and the size of upper and lower flanges have a great impact on the hysteretic performance. The reasonable form of composite joints can effectively alleviate the upward movement of the neutral axis of the composite beam section, realize the outward movement of the plastic hinge on the beam, and improve the ductility of the composite joints. With the decrease of the width ratio of the upper and lower flanges of the beam, the neutral axis of the composite beam section moves down gradually, and the bearing capacity and ductility of the composite connection can be improved. It is suggested that the width ratio of upper and lower flanges be 0.6 ～ 0.9.

参考文献/References:

[1] CHEN X., SHI G. Experimental study on seismic behavior of cover-plate joints in high strength steel frames [J]. Engineering Structures, 2019, 191(7): 292-310.
[2]JAZANY R A, GHOBADI M S. Seismic evaluation and upgrading details of plate-reinforced moment-resisting connections [J]. Journal of Constructional Steel Research, 2018, 150(11): 230-248.
[3]董建莉, 王燕, 庄鹏, 等. 腋板加强型节点钢框架抗震性能试验研究[J]. 土木工程学报, 2016, 49(1): 69-79.
DONG Jianli, WANG Yan, ZHUANG Peng, et al. Experimental study on seismic behaviors of steel frames with haunch reinforced section connections[J]. China Civil Engineering Journal, 2016, 49(1): 69-79.
[4]张艳霞, 李瑞, 赵微, 等. 钢框架梁柱栓焊扩翼-翼缘削弱节点优势分析性能试验[J]. 世界地震工程, 2016, 32(2): 127-138.
ZHANG Yanxia, LI Rui, ZHAO Wei, et al. Performance test for advantage analysis of strengthened-weakened beam to column connections in steel frame [J]. World Earthquake Engineering, 2016, 32(2): 127-138.
[5]SOFIAS C E, KALFAS C N, Pachouomis D T Experimental and FEM analysis of reduced beam section moment endplate connections under cyclic loading [J]. Engineering Structures, 2014, 59(2): 320-329.
[6]OH K, LEE K, CHEN L, et al. Seismic performance evaluation of weak axis column-tree moment connections with reduced beam section [J]. Journal of Constructional Steel Research, 2015, 105: 28-38.
[7]NAKASHIMA M, INOUE K, TADA M. Classification of damage to steel buildings observed in the 1995 Hyogoken-Nanbu earthquake [J]. Engineering Structures, 1998, 20(4): 271-281.
[8]石永久, 苏迪, 王元清. 混凝土楼板对钢框架梁柱节点抗震性能影响的试验研究[J]. 土木工程学报, 2006, 39(9): 26-31.
SHI Yongjiu, SU Di, WANG Yuanqing. An experimental study on the seismic performance of beam-column joints in steel frames with the effect of concrete slabs considered [J]. China Civil Engineering Journal,2006, 39(9): 26-31.
[9]聂建国, 黄远, 樊健生. 考虑楼板组合作用的方钢管混凝土组合框架受力性能试验研究[J]. 建筑结构学报, 2011, 32(3): 99-108.
NIE Jianguo, HUANG Yuan, FAN Jiansheng. Experimental study on load-bearing behavior of rectangular CFST frame considering composite action of floor slab [J]. Journal of Building Structures, 2011, 32(3): 99-108.
[10]牟, 王玲玲, 张春巍, 等. 考虑楼板影响的外环板式梁柱节点抗震性能:试验研究[J]. 工程力学, 2018, 35(2): 160-168.
MOU Ben, WANG Lingling, ZHANG Chunwei, et al. Aseismic performance of beam-to-column joints with external-diaphragm considering slab effect: Experimental investigation [J]. Engineering Mechanics, 2018, 35(2): 160-168.
[11]徐莹璐. 带混凝土楼板的钢框架梁柱弱轴连接节点的抗震性能和设计方法研究[D]. 西安:长安大学,2018.
XU Yinglu. Seismic performance and design method of steel frame beam-column weak-axis connection joints with concrete floor [D]. Xi'an: Chang'an University, 2018.
[12]Recommended seismic design criteria for new steel moment-frame buildings:FEMA-350[S]. Washington, D.C.USA: Federal Emergency Management Agency, 2000.

相似文献/References:

[1]连 鸣,苏明周,郭 艳.高强钢组合K型偏心支撑框架耗能梁段长度研究[J].西安建筑科技大学学报(自然科学版),2014,46(02):217.[doi:10.15986/j.1006-7930.2004.02.012]
　LIAN Ming,SU Mingzhou,GUO Yan.Study on the performance of link beam of high strength steel K-type eccentrically braced frame[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2014,46(02):217.[doi:10.15986/j.1006-7930.2004.02.012]
[2]张繁荣,徐强,蒋攀,等.采用新型双T型钢 - 穿芯螺栓连接的方钢管混凝土柱 - 钢梁节点滞回性能研究[J].西安建筑科技大学学报(自然科学版),2020,52(01):54.[doi:10.15986j.1006-7930.2020.01.008]
　ZHANG Fanrong,XU Qiang,JIANG Pan,et al.Study on hysteretic behavior of new steel beam to concrete-filled square steel tubular column joint with double T-stub-bidirectional bolts[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2020,52(02):54.[doi:10.15986j.1006-7930.2020.01.008]
[3]萨仁高娃,聂建春,张 振,等.钢板-纤维增强混凝土连梁抗震性能研究[J].西安建筑科技大学学报(自然科学版),2024,56(04):492.[doi:10.15986/j.1006-7930.2024.04.003]
　SAREN Gaowa,NIE Jianchun,ZHANG Zhen,et al.Study on seismic performance of steel plate-fiber reinforced concrete coupling beams[J].J. Xi'an Univ. of Arch. & Tech.(Natural Science Edition),2024,56(02):492.[doi:10.15986/j.1006-7930.2024.04.003]

备注/Memo

备注/Memo:
收稿日期:2022-07-11修改稿日期:2023-02-20
基金项目:陕西省自然科学基础研究计划项目(2022JM—221); 西部装配式建筑工业化协同创新中心资助项目(N202207)
第一作者:徐莹璐(1992— ),女,博士,讲师,主要从事钢结构设计与抗震,E-mail:xuyinglu@xauat.edu.cn
更新日期/Last Update: 2023-04-20