Computational Analysis of Cold-formed Steel Columns with Initial Imperfections

Garifullin, Marsel; Nackenhorst, Udo

doi:10.1016/j.proeng.2015.08.239

Cited by 5 publications

(2 citation statements)

References 42 publications

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“…Nonlinear collapse analysis was performed using the obtained imperfection distributions. Garifullin and Nackenhorst [11] conducted a nonlinear buckling analysis on Csection columns. The sensitivity of the load-bearing capacity of CFS members to the geometric imperfections was examined.…”

Section: Introductionmentioning

confidence: 99%

Novel Imperfection Method for Post-Buckling Strength of C-Sectioned CFS Members

Çağrıcı

Aktepe

Erkal

2023

Turkish Journal of Civil Engineering

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The overall behavior of cold-formed steel (CFS) members is significantly affected from existing geometric imperfections. In this work, a mode shape-based imperfection coefficient computation method is developed to investigate the effects of initial geometric imperfections on member behavior. The point clouds of CFS members are collected and used to extract imperfection distributions and coefficients. The computed coefficients are integrated into the numerical model for analysis. Finally, axial loading tests are conducted to compare the numerical and experimental results. The results obtained using mode shape-based imperfection coefficients are generally closer to the experimental results than the common method used in practice.

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Section: Introductionmentioning

confidence: 99%

Novel Imperfection Method for Post-Buckling Strength of C-Sectioned CFS Members

Çağrıcı

Aktepe

Erkal

2023

Turkish Journal of Civil Engineering

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“…Tusnina [23][24][25] presented a finite element analysis of cold-formed Z-purlins supported by sandwich panels. Nackenhorst [26] investigated the problem of initial geometric imperfections on buckling behavior of CFS Cshaped compressed columns. Prokic [27][28][29] analyzed the behavior of thin-walled open section I-beams under torsion and bending.…”

Section: Introductionmentioning

confidence: 99%

Buckling Behavior of Cold-Formed Studs with Thermal Perforations

et al. 2016

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Abstract. Studies have shown that the optimal structural scheme for lowrise buildings that meets all regulatory requirements is a frame system. In this connection, thin-walled cold-formed steel (CFS) profiles seem to be the best material for constructing light steel framed (LSF) walls. The framework of LSF walls is usually constructed from CFS C-shaped profiles. To increase the thermal effectiveness of a wall, CFS profiles usually have thermal perforations and thus are called thermoprofiles. However, these openings have a negative impact on bearing capacity of profiles and require accurate evaluation. In this article a relatively new reticular-stretched thermoprofile with diamond-shaped openings is considered. The article deals with the buckling analysis of perforated CFS C-sections subjected to compression.

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Light Steel Framing with Mineral Wool Fire Protection Under Fire Exposure

Gravit

Dmitriev

2022

Lecture Notes in Civil Engineering

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Computational Analysis of Cold-formed Steel Columns with Initial Imperfections

Cited by 5 publications

References 42 publications

Novel Imperfection Method for Post-Buckling Strength of C-Sectioned CFS Members

Novel Imperfection Method for Post-Buckling Strength of C-Sectioned CFS Members

Buckling Behavior of Cold-Formed Studs with Thermal Perforations

Light Steel Framing with Mineral Wool Fire Protection Under Fire Exposure

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