Elastic coupled local buckling strength of I‐shaped steel member in uniform bending

Elastic coupled local buckling strength of I‐shaped steel member in uniform bending
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工字钢构件均匀弯曲弹性耦合局部屈曲强度

DOI:
10.1002/2475-8876.12355
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发表时间:
2023
影响因子:
0.9
通讯作者:
Kuwada Ryohei
Kuwada Ryohei
中科院分区:
--
文献类型:
--
作者:
Mitsui Kazuya;Kuwada Ryohei

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本研究旨在从理论上推导均匀弯曲工字钢构件局部耦合屈曲强度的闭式评价公式。幂三角函数用于设计特定的位移函数。由于与傅立叶函数相比,该函数收敛速度较快,因此可以仅使用三角函数的两项来描述屈曲挠度。随后,提出了基于位移函数的封闭式评估方程。然后基于有限元方法进行特征值分析,验证了所提出方程的可靠性和有效性。
This research aims to theoretically derive a closed‐form evaluation formula for the coupled local buckling strength of I‐shaped steel members under uniform bending. Power trigonometric functions are used to devise a particular displacement function. Because the function is fast‐converging compared to the Fourier function, it is possible for the buckling deflection to be described using only two terms of the trigonometric function. Subsequently, a closed‐form evaluation equation is proposed based on the displacement function. An eigenvalue analysis based on the finite element method is then conducted to verify the reliability and effectiveness of the proposed equation.
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