T形件初始抗弯刚度简化计算研究

周超; 牟星; 周艳; 吴子超

doi:10.3724/j.gyjzG21102208

T形件初始抗弯刚度简化计算研究

doi: 10.3724/j.gyjzG21102208

周超¹,
牟星^2, ,,
周艳³,
吴子超³

1. 青岛工学院建筑工程学院, 山东青岛 266300;
2. 东莞城市学院城建与环境学院, 广东东莞 523419;
3. 广东建设职业技术学院土木工程学院, 广州 510440

基金项目:

广东省普通高校青年创新人才项目(2020KQNCX124)。

详细信息

作者简介:
周超,硕士,讲师,主要从事钢结构节点研究和教学工作。

通讯作者:
牟星，chaoabc1234@163.com。

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- 文章访问数: 41
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- 被引次数: 0
出版历程
- 收稿日期: 2021-10-22
- 网络出版日期: 2024-08-16

Research on Simplified Calculation of Initial Bending Stiffness of T-Stubs

ZHOU Chao¹,
MU Xing^{2
, ,},
ZHOU Yan³,
WU Zichao³

1. School of Architectural Engineering, Qingdao Institute of Technology, Qingdao 266300, China;
2. School of Urban Construction and Environment, Dongguan City College, Dongguan 523419, China;
3. School of Civil Engineering, Guangdong Construction Polytechnic, Guangzhou 510440, China

摘要

摘要: 通过已有的高强螺栓连接T形件试验和有限元分析对比,验证了有限元模型的有效性。在此基础上,根据有限元和理论分析,简化得到T形件初始抗弯刚度力学模型,给出了在弹性阶段T形件的有效长度计算表达式,得到了T形件初始抗弯刚度计算公式。最后,选取了考虑T形件翼缘宽度、翼缘厚度、螺栓直径、螺栓等级和螺栓间距等因素变化的35组试件进行有限元参数化分析,将初始抗弯刚度理论计算结果与有限元计算结果进行比较,误差大部分在15%以内,验证了理论计算公式的有效性。
- T形件 /
- 初始抗弯刚度 /
- 有效长度 /
- 有限元
Abstract: The validity of the finite element model was verified by comparing the existing test data and finite element analysis results of T-stubs connected with high-strength bolts. According to the finite element analysis and theoretical analysis, the mechanical model of initial bending stiffness of T-stubs proposed in Eurocode 3 was simplified, and the expression for calculating the effective length of T-stubs in elastic stage was obtained, the calculation formula of initial bending stiffness of T-stubs was derived.Finally, 35 groups of T-stubs considering the changes of flange width, flange thickness, bolt diameter, bolt grade and bolt spacing were selected to carry out finite element parametric analysis. The theoretical calculation results of initial bending stiffness were compared with those of finite element analysis, and the errors were mostly within 15%, which verified the validity of theoretical calculation formula.
- T-stubs /
- initial bending stiffness /
- effective length /
- finite element

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参考文献(15)

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