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

ZHOU Chao; MU Xing; ZHOU Yan; WU Zichao

doi:10.3724/j.gyjzG21102208

Volume 54 Issue 7

Jul. 2024

Turn off MathJax

Article Contents

Article Navigation > INDUSTRIAL CONSTRUCTION > 2024 > 54(7): 153-158

ZHOU Chao, MU Xing, ZHOU Yan, WU Zichao. Research on Simplified Calculation of Initial Bending Stiffness of T-Stubs[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(7): 153-158. doi: 10.3724/j.gyjzG21102208

Citation:

ZHOU Chao, MU Xing, ZHOU Yan, WU Zichao. Research on Simplified Calculation of Initial Bending Stiffness of T-Stubs[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(7): 153-158. doi: 10.3724/j.gyjzG21102208

ZHOU Chao, MU Xing, ZHOU Yan, WU Zichao. Research on Simplified Calculation of Initial Bending Stiffness of T-Stubs[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(7): 153-158. doi: 10.3724/j.gyjzG21102208

Citation:

ZHOU Chao, MU Xing, ZHOU Yan, WU Zichao. Research on Simplified Calculation of Initial Bending Stiffness of T-Stubs[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(7): 153-158. doi: 10.3724/j.gyjzG21102208

PDF( 4647 KB)

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

doi: 10.3724/j.gyjzG21102208

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

Received Date: 2021-10-22
Available Online: 2024-08-16

Abstract

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

FullText(HTML)

References(15)

References

[1]	European Committee for Standardization. Eurocode 3, design of joints, part 1-8:EN 1993-1-2[S]. Brussels: European Committee for Standardization, 2005.
[2]	American Institute of Steel Construction(AISC). Prequalified connections for special and intermediate steel moment frames for seismic applications: ANSI/AISC-358-16[S]. Chicago: AISC, 2018.
[3]	PILUSO V, RIZZANO G. Experimental analysis and modelling of bolted T-stubs under cyclic loads[J]. Journal of Constructional Steel Research, 2008, 64: 655-669.
[4]	郭宏超, 梁刚, 刘云贺.预拉力螺栓连接焊接T 形件受力性能研究[J].建筑结构学报, 2018, 39(5):156-163.
[5]	袁焕鑫, 胡松, 杜新喜.不锈钢T 形件螺栓连接承载性能试验研究[J].工程力学, 2019, 36(2):215-223.
[6]	YASIN O. The capacities of unstiffened T-stubs with thin plates and large bolts[J]. Journal of Constructional Steel Research, 2021, 186:1-16.
[7]	ANA M G C, SILVA L S, FRANS S K. Finite-element modeling of the nonlinear behavior of bolted T-stub connections[J]. Journal of Structural Engineering, 2006, 132:918-928.
[8]	陈士哲, 潘建荣, 王湛.考虑弯矩作用的T 型连接力学性能的研究[J].钢结构, 2017, 32(9):17-22.
[9]	GODRICH L, WALD F, KABEL'AˇC J, et al. Design finite element model of a bolted T-stub connection component[J]. Journal of Constructional Steel Research, 2019, 157 :198-206.
[10]	KONG Z, KIM S E. Numerical estimation for initial stiffness and ultimate moment of T-stub connections[J]. Journal of Constructional Steel Research, 2018, 141:118-131.
[11]	王素芳, 陈以一. T 形件连接初始刚度的理论计算模型[J].工业建筑, 2007, 37(10):80-83.
[12]	强旭红, 武念铎, 罗永峰.考虑撬力作用位置的T型连接初始刚度计算方法[J].天津大学学报(自然科学与工程技术版), 2018, 51(12):1230-1237.
[13]	武念铎, 强旭红, 刘晓.考虑螺栓抗弯刚度的T型连接初始刚度计算方法[J].上海交通大学学报, 2018, 52(12):1571-1579.
[14]	陈士哲.对组件法的修正与改进及其在钢结构节点本构关系研究中的应用[D].广州:华南理工大学, 2015.
[15]	CABRERO J M, BAYO E. The semi-rigid behaviour of the three-dimensional steel beam-to- column joints subjected to proportional loading. part II: theoretical model and validation[J]. Journal of Constructional Steel Research, 2006, 63: 1254-1267.