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

Year 2006, Issue: 010, 117 - 130, 15.05.2006

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.

References

  • [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, Bogazici 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] Chen, W.F. and Kishi, N., “Semi-Rigid Steel Beam-to-Column Connections: Data Base and Modeling”, Journal of Structural Engineering, ASCE, 115: 105-119 (1989).
  • [20] Chan, S.L. and Chui, P.P.T., “Static and Cyclic Analysis of Semi Rigid Steel Frames”, 200-300 Elsevier Science, (2000).
  • [21] Lee, S.S. and Moon, T.S., “Moment–Rotation Model of Semi-Rigid Connections with Angles”, Engineering Structures, 24: 227-237 (2002).

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

Year 2006, Issue: 010, 117 - 130, 15.05.2006

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.

References

  • [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, Bogazici 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] Chen, W.F. and Kishi, N., “Semi-Rigid Steel Beam-to-Column Connections: Data Base and Modeling”, Journal of Structural Engineering, ASCE, 115: 105-119 (1989).
  • [20] Chan, S.L. and Chui, P.P.T., “Static and Cyclic Analysis of Semi Rigid Steel Frames”, 200-300 Elsevier Science, (2000).
  • [21] Lee, S.S. and Moon, T.S., “Moment–Rotation Model of Semi-Rigid Connections with Angles”, Engineering Structures, 24: 227-237 (2002).
There are 21 citations in total.

Details

Primary Language English
Subjects Civil Engineering
Journal Section Articles
Authors

Mutlu Seçer

Publication Date May 15, 2006
Published in Issue Year 2006 Issue: 010

Cite

APA Seçer, M. (2006). THE EFFECT OF FLEXIBLE JOINTS ON THE EFFECTIVE LENGTH FACTOR AND CRITICAL ELASTIC BUCKLING LOAD OF UNBRACED STEEL COLUMNS. Journal of Science and Technology of Dumlupınar University(010), 117-130.

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