Numerical Evaluation of Shear Strength of Members with I, H, Tubular and Box Sections in the panel zone of steel moment-resisting frames

Asghari, Abazar; Pavir, Aydin

doi:10.22034/25.2.85

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Volume 25, Issue 2 (2025) MCEJ 2025, 25(2): 85-100 | Back to browse issues page

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Asghari A, Pavir A. Numerical Evaluation of Shear Strength of Members with I, H, Tubular and Box Sections in the panel zone of steel moment-resisting frames. MCEJ 2025; 25 (2) :85-100
URL: http://mcej.modares.ac.ir/article-16-75248-en.html

Numerical Evaluation of Shear Strength of Members with I, H, Tubular and Box Sections in the panel zone of steel moment-resisting frames

Abazar Asghari ^*

¹, Aydin Pavir²

1- School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran , abazar.asghari@ut.ac.ir
2- PhD student, Department of Civil Engineering, Urmia University, Urmia, Iran

Abstract: (421 Views)

In this article, first, theoretical and code-based relationships of nominal shear strength of H-shaped members with respect to the strong axis, tubular, box-shaped, and H-shaped members with respect to the weak axis were studied. Then, the nominal shear strength of each mentioned section was evaluated using numerical modeling in Abaqus software. For numerical parametric evaluation, 35 members with different cross-sections were used. Each of these members was modeled in Abaqus software and each of them was subjected to both pushover and cyclic analyses. The lengths of each of these models were such that in all models, the shear limit state was more decisive than the flexural limit state. Based on this research, the results of the relationships presented in the AISC 360 for determining the nominal shear strength of H-shaped members with respect to the strong axis have very close conformity with the results of numerical modeling in Abaqus software, and at higher drifts, the results of the AISC 360 method are approximately 10% non-conservative. The results of the relationships presented in the AISC 360 for determining the nominal shear strength of tubular sections have very close conformity with the results of numerical modeling in Abaqus software, and at higher drifts, the results of the AISC 360 method are approximately 20% conservative. The results of the relationships presented in the AISC 360 for determining the nominal shear strength of box-shaped members have very close conformity with the results of numerical modeling in Abaqus software. The results of the relationships presented in the AISC 360 code for determining the nominal shear strength of H-shaped members with respect to the weak axis do not have close conformity with the results of numerical modeling in Abaqus software, and the nominal shear strength obtained from the AISC 360 is about 20% non-conservative.

Keywords: Shear Strength, H-shaped Section, Tubular, Box-shaped sections, Redistribution of stress

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Article Type: Original Research | Subject: Civil and Structural Engineering
Received: 2024/05/21 | Accepted: 2024/11/23 | Published: 2025/07/1

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