Novel Imperfection Method for Post-Buckling Strength of C-Sectioned CFS Members-Reference-Cited by-同舟云学术

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

Published:2023-11-01 Issue:6 Volume:34 Page:29-52
ISSN:2822-6836
Container-title:Turkish Journal of Civil Engineering
language:
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Author:

ÇAĞRICI Özge Gizem¹^ORCID,AKTEPE Rafet¹^ORCID,GÜLDÜR ERKAL Burcu²^ORCID

Affiliation:

1. HACETTEPE UNIVERSITY

2. HACETTEPE ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, İNŞAAT MÜHENDİSLİĞİ BÖLÜMÜ

Abstract

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.

Funder

TÜBİTAK

Publisher

Teknik Dergi

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