Buckling Analysis of Gabled Frames Made of Steel Sections with Variable Moment of Inertia Under Dead-Load Axial Effects

Authors

1 Department of Civil Engineering, Hakim Sabzevari University, Sabzevar 9617976487-397, Iran

2 Department of Civil Engineering, Islamic Azad University, Neyshabur, Iran

10.22034/ceej.2025.66747.2429

Abstract

Thin-walled structures are among the critical and vital infrastructures that have been used in various branches of science. Among the applications of these structures in civil engineering, we can mention the storage tanks containing fluids, domes, dams, and slabs. When the axial compressive force tends to a limit value, with the least lateral load, a significant lateral displacement occurs. This axial compressive force is called the critical load, which is also known as the buckling load. Most of the columns of the frames do not reach the buckling load at the same time, so the axial force of many columns in braced frames during buckling of a particular column is different from their own buckling load. The most common method of determining the critical load of columns is to use the concept of effective length factor. In this research, an attempt has been made to obtain the critical load of the frames using a new analytical method. Various research has been conducted on the effective length factor and critical load. Some of the relevant studies are reviewed in this section.

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Main Subjects

References

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Journal of Civil and Environmental Engineering
Volume 55, Issue 120 - Serial Number 120
Autumn 2025
November 2025
Pages 45-55

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