[1]索雅琪,范圣刚,刘飞,等.新型单面螺栓梁柱外伸端板连接节点受力性能试验研究[J].东南大学学报(自然科学版),2020,50(3):417-424.[doi:10.3969/j.issn.1001-0505.2020.03.002]
 Suo Yaqi,Fan Shenggang,Liu Fei,et al.Experimental study on mechanical properties for extended end-plate connections of beam-column joints using new blind bolt[J].Journal of Southeast University (Natural Science Edition),2020,50(3):417-424.[doi:10.3969/j.issn.1001-0505.2020.03.002]
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新型单面螺栓梁柱外伸端板连接节点受力性能试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
50
期数:
2020年第3期
页码:
417-424
栏目:
土木工程
出版日期:
2020-05-20

文章信息/Info

Title:
Experimental study on mechanical properties for extended end-plate connections of beam-column joints using new blind bolt
作者:
索雅琪12范圣刚12刘飞3王坤12
1 东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 211189; 2 东南大学土木工程学院, 南京 211189; 3 浙南万科房地产有限公司, 温州 325000
Author(s):
Suo Yaqi12 Fan Shenggang12 Liu Fei3 Wang Kun12
1 Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 211189, China
2 School of Civil Engineering, Southeast University, Nanjing 211189, China
3Zhenan Vanke Real Estate Co., Ltd., Wenzhou 325000, China
关键词:
单面螺栓 外伸端板 梁柱连接节点 转动刚度 半刚性
Keywords:
one-side bolt extended end-plate beam-to-column connection rotational stiffness semi-rigid
分类号:
TU393.3
DOI:
10.3969/j.issn.1001-0505.2020.03.002
摘要:
为研究新型自紧高强单面螺栓SHSOB连接节点的受力性能,并与传统M20扭剪型高强螺栓连接节点进行对比,设计制作了3个方矩形钢管柱与H形钢梁的外伸式端板连接节点试件,包括2个SHSOB螺栓连接节点和1个M20螺栓连接节点,对各节点试件开展了静力加载试验.揭示了节点的受力性能与破坏模式,考察了新型SHSOB螺栓连接节点的转动刚度、承载力和螺栓群受力分布模式.结果表明,SHSOB螺栓连接节点的初始转动刚度低于M20螺栓连接节点,节点转角大于0.03 rad,满足美国规范FEMA-350对节点延性的要求.随着荷载的增加,端板受拉区应力先增大后趋于稳定.SHSOB螺栓连接节点属于半刚性节点,螺栓群受力分布模式与传统的高强螺栓相似,中和轴位于螺栓群形心附近,具有较好的工程适用性.
Abstract:
To study the mechanical properties of joints connected by a new type of self-tightening high strength one-side bolt(SHSOB), and compare with the joints connected by traditional M20 high-strength torsional shear bolts, three specimens of the extended end-plate connections of square steel tube columns and H-shaped steel beams were designed and manufactured, including two joints connected by SHSOB bolts and one joint connected by M20 bolts. The static loading tests were carried out on the specimens to reveal the mechanical properties and the failure modes of the joints. The rotational stiffness, bearing capacity, and stress distribution modes of the bolt group were investigated. The results show that the initial rotational stiffness of the joint connected by SHSOB bolts is lower than that by M20 bolts. The joint angle of the joint connected by SHSOB bolts is greater than 0.03 rad, meeting the ductility requirements of the American standard FEMA-350. Moreover, with the increase of the load, the stress in the tensile zone of the end-plate increases first and then tends to be stable. The joints connected by SHSOB bolts belong to semi-rigid joints. The stress distribution pattern of the bolt group is similar to that of the traditional high-strength bolts, and the neutral axis is located near the centroid of the bolt group, thus showing that SHSOB bolt has a good engineering applicability.

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备注/Memo

备注/Memo:
收稿日期: 2019-10-21.
作者简介: 索雅琪(1992—),女,博士生;范圣刚(联系人),男,博士,教授,博士生导师,101010393@seu.edu.cn.
基金项目: “十三五”国家重点研发资助项目(2017YFC0703802)、国家自然科学基金资助项目(51378105,51878146)、江苏省“青蓝工程”中青年学术带头人资助项目(2016)、江苏省“六大人才高峰”高层次人才选拔培养资助项目(JZ-001).
引用本文: 索雅琪,范圣刚,刘飞,等.新型单面螺栓梁柱外伸端板连接节点受力性能试验研究[J].东南大学学报(自然科学版),2020,50(3):417-424. DOI:10.3969/j.issn.1001-0505.2020.03.002.
更新日期/Last Update: 2020-05-20