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[1]曹万铖,王雪亮,奉 佳,等.胶合木梁柱削弱型钢填板-螺栓连接数值模拟及参数分析[J].建筑科学与工程学报,2022,39(05):172-182.[doi:10.19815/j.jace.2021.04083]
 CAO Wan-cheng,WANG Xue-liang,FENG Jia,et al.Numerical Simulation and Parameter Analysis of Bolted Glulam Beam-to-column Connections with Weakened Slotted-in Steel Plates[J].Journal of Architecture and Civil Engineering,2022,39(05):172-182.[doi:10.19815/j.jace.2021.04083]
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胶合木梁柱削弱型钢填板-螺栓连接数值模拟及参数分析(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
39卷
期数:
2022年05期
页码:
172-182
栏目:
结构工程
出版日期:
2022-09-30

文章信息/Info

Title:
Numerical Simulation and Parameter Analysis of Bolted Glulam Beam-to-column Connections with Weakened Slotted-in Steel Plates
文章编号:
1673-2049(2022)05-0172-11
作者:
曹万铖1,王雪亮1,2,奉 佳1,刘杨梅3
(1. 武汉理工大学 土木工程与建筑学院,湖北 武汉 430070; 2. 武汉理工大学海南研究院,海南 三亚 572025; 3. 湖北福汉绿色建筑有限公司,湖北 武汉 430070)
Author(s):
CAO Wan-cheng1, WANG Xue-liang1,2, FENG Jia1, LIU Yang-mei3
(1. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China; 2. Hainan Research Institute of Wuhan University of Technology, Sanya 572025, Hainan, China; 3. Hubei Fuhan Green Building Co., Ltd., Wuhan 430070, Hubei, China)
关键词:
胶合木框架 削弱型钢填板-螺栓连接 力学性能 延性 参数分析
Keywords:
glulam frame connection with weakened slotted-in steel plate mechanical property ductility parameter analysis
分类号:
TU366.3
DOI:
10.19815/j.jace.2021.04083
文献标志码:
A
摘要:
设计了槽式削弱的新型钢填板-螺栓连接,建立多组有限元模型进行数值分析。将新型连接与普通连接在刚度、延性、承载力等方面进行对比分析。考虑开槽个数、开槽边距、开槽长度、削弱高度等因素对梁柱连接性能的影响,采用正交试验设计法确定不同因素组合的模型方案,并用有限元方法探讨各因素对梁柱连接性能的影响程度和影响规律。结果表明:槽式连接的应力与变形主要集中于钢填板,且屈服早于木材的横纹劈裂,连接失效时,钢填板已发生大面积屈服,有效避免了木梁的过早劈裂,并为梁柱连接提供较好的延性; 削弱高度和开槽个数的影响最为显著,增加削弱高度以及开槽个数,使得连接整体屈服更早,而延性增强; 开槽边距增大,连接的承载力提高,但延性减小; 开槽长度对于槽式连接的刚度影响作用有限,但对屈服弯矩和延性系数的影响比较明显。
Abstract:
A new type of connection with weakened slotted-in steel plates was designed, and several groups of finite element models were established for numerical analysis. The stiffness, ductility and bearing capacity of the new connection were compared to the ordinary connection. Considering the influence of the slots' number, edge distance, slot length, weakening height and other factors on the beam-column connection performance, the method of orthogonal design was used to determine the model scheme of different factor combination, and the finite element method was used to explore the influence degree and influence law of each factor on the beam-column connection performance. The results show that the stress and deformation of the connection are mainly concentrated on the steel plate which yields earlier than the cross-grain splitting of the timber. When the connection fails, the steel plate has yielded in a large area, which effectively avoids the premature splitting of the wood beam and provides better ductility for the beam-column connection.The influence of weakening height and the number of slots is the most significant. With the increase of the weakening height and the number of slot, the overall yield of the connection is earlier and the ductility is enhanced. Enlarging edge distance can also increase the bearing capacity, but the ductility decreases. The length of slot has limited influence on the stiffness of this connection, but it has obvious impact on the yield moment and ductility coefficient.

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相似文献/References:

备注/Memo

备注/Memo:
收稿日期:2021-04-21
基金项目:湖北省自然科学基金项目(2018CFB645); 海南省自然科学基金项目(522MS096)
作者简介:曹万铖(1996-),男,湖北荆州人,工学硕士研究生,E-mail:ctu8484@163.com。
通信作者:王雪亮(1973-),女,山西运城人,副教授,工学博士,E-mail:wxllhb@163.com。
更新日期/Last Update: 2022-09-30