Abstract
This paper presents the results of a numerical
study to understand the behavior of Elliptical Hollow Section (EHS) columns at
elevated temperatures. A large number of numerical studies have been carried
out using the non-linear finite element software ABAQUS v6.14-1 to investigate
the influence of slenderness, initial applied load level and axial restraint
stiffness on the fire resistance of EHS steel columns at high temperatures. The
uniform temperature distribution is assumed. The Finite Element simulation
results have been compared with the calculation results using the Eurocode EN
1993-1-1 and Turkish design guide equations in order to check whether the
current design method is safe or not. It has been found that the current method
for calculating critical temperatures of axially restrained EHS steel column is
unsafe. Therefore, a new simple design method has been introduced.
Keywords
Elliptical Hollow Section Elevated temperature Ambient temperature Finite Element Fire resistance
References
- ABAQUS, V. (2014) 6.14 documentation, Dassault Systemes Simulia Corporation.
- Ali, F. A., P. Shepherd, M. Randall, I. Simms, D. J. O'Connor and I. Burgess (1998) The effect of axial restraint on the fire resistance of steel columns. Journal of Constructional Steel Research, 46, 305-306. doi:10.1016/s0143-974x(98)80036-9
- Boresi, A. P. and R. Schmidt, J. 2003. Advanced mechanics of materials, John Wiley and Sons Press, USA.
- BSI 2003, (2003). BS 5950: Part8: Code of Practice for the Fire Protection of Structural Steelwork, British Standard Institute, UK.
- CEN EN 1993-1-8, (2005). Design of Steel Structures, Design of Joints, British Standard Institute, London.
- CEN EN 1993-1-1, (2005). Design of Steel Structures, General Rules and Rules for Building, British Standard Institute, London.
- CEN EN 1993-1-2, (2005). Design of Steel Structures, Structural Fire Design, British Standard Institute, London.
- ÇYHY, (2016). Çelik Yapıların Tasarım, Hesap ve Yapım Esasları, Türk Standartları Enstitüsü, Ankara.
- Franssen,J.-M. (2000) Failure temperature of a system comprising a restrained column submitted to fire. Fire Safety Journal, 34,(2), 191-207. doi:10.1016/s0379-7112(99)00047-8
- Ozyurt, E. and Y. Wang (2016) Effects of non-uniform temperature distribution on critical member temperature of steel tubular truss. Engineering Structures, 116, 95-106. doi: 10.1016/j.engstruct.2016.02.044
- Ozyurt, E., Y. Wang and K. Tan (2014) Elevated temperature resistance of welded tubular joints under axial load in the brace member. Engineering Structures, 59, 574-586. doi: 10.1016/j.engstruct.2013.11.014
- Ozyurt, E. and Y. C. Wang (2015) Effects of truss behaviour on critical temperatures of welded steel tubular truss members exposed to uniform fire. Engineering Structures, 88, 225-240. doi:10.1016/j.engstruct.2015.01.032
- Rodrigues, J. P. C. and L. Laím (2017) Fire resistance of restrained composite columns made of concrete filled hollow sections. Journal of Constructional Steel Research, 133, 65-76. doi:10.1016/j.jcsr.2017.02.011
- Wang, P., Y.-C. Wang and G.-Q. Li (2010) A new design method for calculating critical temperatures of restrained steel column in fire. Fire Safety Journal, 45,(6), 349-360. doi: 10.1016/j.firesaf.2010.07.002
- Wang, Y. (2004) Postbuckling behavior of axially restrained and axially loaded steel columns under fire conditions. Journal of structural Engineering, 130,(3), 371-380. doi: 10.1061/(asce)0733-9445(2004)130:3(371)
- Wang, Y. and D. Moore (1994) The effect of frame continuity on the critical temperature of steel columns. Third kenrensky conference on flobal trends in structural engineering, Singapore.
- Wang, Y. and D. Moore (1994) Effect of thermal restraint on column behaviour in a frame. Fire Safety Science, 4, 1055-1066. doi: 10.3801/iafss.fss.4-1055
Abstract
Bu makale, elips enkesitli içi boş profillerden oluşmuş
kolonların yüksek sıcaklıktaki davranışlarını anlamak için sayısal bir
çalışmanın sonuçlarını sunmaktadır. Doğrusal olmayan sonlu elemanlar yazılımı
olan ABAQUS v6.14-1 kullanılarak, narinliğin, eksenel
zorlanma oranının ve eksenel yük seviyesinin yüksek sıcaklıklarda EHS çelik
kolonların yangın dayanımına etkilerini araştırmak için çok sayıda sayısal
çalışmalar yürütülmüştür. Düzgün sıcaklık dağılımı varsayılmıştır. Sonlu eleman
simülasyon sonuçları, mevcut tasarım yönteminin güvenli olup olmadığını kontrol
etmek için Eurocode EN 1993-1-1 ve Çelik
Yapıların Tasarım, Hesap ve Yapım Esasları yönetmeliklerindeki denklemler
kullanılarak hesaplanan sonuçlar karşılaştırılmıştır. Eksenel olarak
sıkıştırılmış EHS çelik kolonların kritik sıcaklıkları hesaplanması için mevcut
yöntemin güvensiz olduğu tespit edilmiştir. Bu nedenle, yeni bir basit tasarım
yöntemi tanıtıldı.
Keywords
Elips Enkesitli içi boş profiller (EHS) Yüksek sıcaklıklar Oda sıcaklığı Sonlu elemanlar Yangın dayanımı
References
- ABAQUS, V. (2014) 6.14 documentation, Dassault Systemes Simulia Corporation.
- Ali, F. A., P. Shepherd, M. Randall, I. Simms, D. J. O'Connor and I. Burgess (1998) The effect of axial restraint on the fire resistance of steel columns. Journal of Constructional Steel Research, 46, 305-306. doi:10.1016/s0143-974x(98)80036-9
- Boresi, A. P. and R. Schmidt, J. 2003. Advanced mechanics of materials, John Wiley and Sons Press, USA.
- BSI 2003, (2003). BS 5950: Part8: Code of Practice for the Fire Protection of Structural Steelwork, British Standard Institute, UK.
- CEN EN 1993-1-8, (2005). Design of Steel Structures, Design of Joints, British Standard Institute, London.
- CEN EN 1993-1-1, (2005). Design of Steel Structures, General Rules and Rules for Building, British Standard Institute, London.
- CEN EN 1993-1-2, (2005). Design of Steel Structures, Structural Fire Design, British Standard Institute, London.
- ÇYHY, (2016). Çelik Yapıların Tasarım, Hesap ve Yapım Esasları, Türk Standartları Enstitüsü, Ankara.
- Franssen,J.-M. (2000) Failure temperature of a system comprising a restrained column submitted to fire. Fire Safety Journal, 34,(2), 191-207. doi:10.1016/s0379-7112(99)00047-8
- Ozyurt, E. and Y. Wang (2016) Effects of non-uniform temperature distribution on critical member temperature of steel tubular truss. Engineering Structures, 116, 95-106. doi: 10.1016/j.engstruct.2016.02.044
- Ozyurt, E., Y. Wang and K. Tan (2014) Elevated temperature resistance of welded tubular joints under axial load in the brace member. Engineering Structures, 59, 574-586. doi: 10.1016/j.engstruct.2013.11.014
- Ozyurt, E. and Y. C. Wang (2015) Effects of truss behaviour on critical temperatures of welded steel tubular truss members exposed to uniform fire. Engineering Structures, 88, 225-240. doi:10.1016/j.engstruct.2015.01.032
- Rodrigues, J. P. C. and L. Laím (2017) Fire resistance of restrained composite columns made of concrete filled hollow sections. Journal of Constructional Steel Research, 133, 65-76. doi:10.1016/j.jcsr.2017.02.011
- Wang, P., Y.-C. Wang and G.-Q. Li (2010) A new design method for calculating critical temperatures of restrained steel column in fire. Fire Safety Journal, 45,(6), 349-360. doi: 10.1016/j.firesaf.2010.07.002
- Wang, Y. (2004) Postbuckling behavior of axially restrained and axially loaded steel columns under fire conditions. Journal of structural Engineering, 130,(3), 371-380. doi: 10.1061/(asce)0733-9445(2004)130:3(371)
- Wang, Y. and D. Moore (1994) The effect of frame continuity on the critical temperature of steel columns. Third kenrensky conference on flobal trends in structural engineering, Singapore.
- Wang, Y. and D. Moore (1994) Effect of thermal restraint on column behaviour in a frame. Fire Safety Science, 4, 1055-1066. doi: 10.3801/iafss.fss.4-1055
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Research Articles |
| Authors | |
| Publication Date | April 24, 2018 |
| Submission Date | May 11, 2017 |
| Acceptance Date | March 13, 2018 |
| Published in Issue | Year 2018 Volume: 23 Issue: 1 |
Cite
Cited By
Düzlem İçi Eğilme Momenti Altındaki Elips Enkesitli T-birleşimlerinin Dayanımları
Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Emre Özyurt
https://doi.org/10.17714/gumusfenbil.504444
Çok Düzlemli Kaynaklı K-Birleşimlerin Dayanımları
Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Emre ÖZYURT
https://doi.org/10.17714/gumusfenbil.678839
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