Journals / Dumlupınar Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2006 / Cilt: 0 - Sayı: 10

The effect of flexible joints on the effective length factor and critical elastic buckling load of unbraced steel columns

Esnek birleşimlerin çaprazsız çelik kolonların efektif uzunluk faktörü ve kritik elastik burkulma yüküne etkisi

Pages
117–130
Publication Date
2022-10-11
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

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.

📌 3 Key Takeaways

🎯
Objective & Hypothesis: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.
📊
Key Findings & Data:Steel beam-to-column connections are modeled flexibly by using equivalent rotational springs and analytical expressions are presented for rigid and flexible cases separately.
💡
Conclusion & Impact: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.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

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.

Özet

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.

🔖

Cite This Article

SEÇER, M. (2022). The effect of flexible joints on the effective length factor and critical elastic buckling load of unbraced steel columns. Dumlupınar Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 0 - Sayı: 10, 117–130. https://ajindex.com/articles/492311

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (1)

  1. L.R.F.D., Load and Resistance Factor Design Specification for Structural Steel Buildings, American Institute of Steel Construction Inc., Chicago, (1999). [2]Eurocode 3 Design of Steel Structures, Part 1.1: General Rules and Rules for Buildings, CEN Document (1994). [3]TS 648, Çelik Yapıların Hesap ve Yapım Kuralları, T.S.E. (1980). [4]Chen, W. F., Goto, Y. and Liew, R., "Stability Design of Semi Rigid Frames", Wiley, New York, 35-70 (1993). [5]Kishi, N. and Chen, W.F., "Moment-Rotation Relations of Semi-Rigid Connections with Angles", Journal of Structural Engineering, ASCE, 116 (7): 1813-1834 (1990). [6]Faella, C., Piluso, V. and Rizzano, G., "Structural Steel Semi Rigid Connections", CRC Press, Florida, 1-50 (2000). [7]Hasan, R., Kishi, R. and Chen, W.F., "A New Nonlinear Connection Classification System", Journal of Constructional Steel Research, 47: 119-140 (1998). [8]Seçer, M. ve Bozdağ, Ö., "Yarı-Rjit Birleşimlerin Üç Boyutlu Yapı Davranışına Etkisi", 6th International Congress on Advances in Civil Engineering,Boğaziçi University, Istanbul, (2004). [9] Chen, W.F. and Kim, S.E., "LRFD Steel Design Using Advanced Analysis", CRC Press, New York, 250-350 (1997). [10] Gantes C.J. and Mageirou, G.E., "Improved Stiffness Distribution Factors for Evaluation of Effective Buckling Lengths in Multi-Story Sway Frames", Engineering Structures, 27: 113-124 (2005). [11]Chen, W.F. and Lui, E.M., "Stability Design of Steel Frames", Boca Raton Florida,CRC Press, 66-76 (1991). [12]Timoshenko, S.P. and Gere, J., "Theory of Elastic Stability", Mc-Graw Hill, New York, 10-50 (1961). [13]Livesley, R.K., "Matrix Methods of Structural Analysis", Pergamon Press, Great Britain, 30-50 (1975). [14]Bazant, Z.P. and Cedolin, L., "Stability of Structures: Elastic, Inelastic, Fracture and Damage Theories", Oxford University Press, New York, 5-20 (1991). [15]Chan, S.L., "Non-linear Behavior and Design of Steel Structures", Journal of Constructional Steel Research, 57: 1217-1231 (2001). [16]Lorenz, R.F., Kato, B. and Chen, W.F., "Semi Rigid Connections in Steel Frames", McGraw-Hill, New York, 100-150 (1993). [17]Hadianfard, M.A. and Razani, R., "Effects of Semi-Rigid Behavior of Connections in the Reliability of Steel Frames", Structural Safety, 25: 123-138 (2003). [18] Liew, J.Y.R., Yu, C.H., Ng, Y.H. and Shanmugam, N.E., "Testing of Semi-Rigid Unbraced Frames for Calibration of Second-order Inelastic Analysis", Journal of Constructional Steel Research, 41: 159-195 (1997). [19] Che