THE EFFECT OF FLEXIBLE JOINTS ON THE EFFECTIVE LENGTH FACTOR AND CRITICAL ELASTIC BUCKLING LOAD OF UNBRACED STEEL COLUMNS

Abstract

In this study, the effective length factor (K-factor) and critical elastic buckling load of steel columns are derived considering the effects of the flexible joint characteristics of steel beam-to-column connections. Steel beam-to-column connections are modeled flexibly by using equivalent rotational springs and analytical expressions are presented for rigid and flexible cases separately. The effects of the moment-rotation characteristics of connections on the effective length factor and critical elastic buckling load are numerically studied and the effect of flexible connections on the steel column behavior is examined.

Keywords

• Effective Length Factor,Column Buckling,Flexible Joint

ESNEK BİRLEŞİMLERİN ÇAPRAZSIZ ÇELİK KOLONLARIN EFEKTİF UZUNLUK FAKTÖRÜ VE KRİTİK ELASTİK BURKULMA YÜKÜNE ETKİSİ

Abstract

Bu çalışmada, çelik kolonlar için efektif uzunluk faktörü (K-faktörü) ve kritik elastik burkulma yükü ifadeleri esnek çelik kiriş kolon birleşimlerinin birleşim karakterleri dikkate alınarak elde edilmiştir. Çelik kiriş kolon birleşimlerinin esnek olarak modellenmesi eşdeğer dönel yaylar ile sağlanmış ve analitik ifadeler rijit ve esnek birleşim durumları için ayrı ayrı elde edilmiştir. Kiriş kolon birleşimlerin moment-dönme karakterlerinin efektif uzunluk faktörü ve kritik elastik burkulma yükü üzerindeki etkileri nümerik olarak çalışılmış ve esnek birleşimlerin çelik kolon davranışı üzerine olan etkileri incelenmiştir.

Keywords

• Efektif Uzunluk Faktörü,Kolon Burkulması,Esnek Birleşim

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